/* roulang page: index */
:root {
            --primary: #1F6E3F;
            --primary-dark: #1D5C37;
            --primary-deeper: #154A2C;
            --accent: #E6493D;
            --accent-dark: #C93A2F;
            --dark-bg: #0F2A1A;
            --dark-bg-2: #13271A;
            --light-bg: #F5F6F1;
            --light-bg-2: #F7F5EF;
            --card-white: #FFFFFF;
            --border-light: #DDE5DD;
            --border-mid: #D6E1D6;
            --text-primary: #162318;
            --text-secondary: #506055;
            --text-muted: #7A8A7E;
            --text-on-dark: #FFFFFF;
            --text-on-dark-muted: #B8C8BC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(15, 42, 26, 0.10);
            --transition: 0.22s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-num: Georgia, 'Times New Roman', 'Songti SC', serif;
            --section-pad: 70px;
            --section-pad-mobile: 48px;
            --container-max: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15.5px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), background var(--transition), border-color var(--transition);
        }

        a:hover {
            color: var(--accent);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.12s ease, box-shadow var(--transition);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .num {
            font-family: var(--font-num);
            letter-spacing: 0.02em;
        }

        /* Section base */
        .section {
            padding: var(--section-pad) 0;
        }

        .section-alt {
            background-color: var(--card-white);
        }

        .section-tight {
            padding: 48px 0;
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-header .eyebrow {
            display: inline-block;
            font-size: 12.5px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(31, 110, 63, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.75;
        }

        .section-header .header-note {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 8px;
        }

        /* Typography */
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0 0 12px;
        }

        h1 {
            font-size: 42px;
            font-weight: 800;
        }

        h2 {
            font-size: 28px;
        }

        h3 {
            font-size: 21px;
            font-weight: 600;
        }

        p {
            margin-bottom: 12px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            text-align: center;
            transition: all 0.22s ease;
            white-space: nowrap;
            border: 2px solid transparent;
        }

        .btn-primary {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-primary:hover {
            background-color: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 58, 47, 0.28);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(201, 58, 47, 0.2);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-secondary:hover {
            background-color: rgba(31, 110, 63, 0.07);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }

        .btn-secondary:active {
            background-color: rgba(31, 110, 63, 0.12);
        }

        .btn-ghost-light {
            background-color: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.45);
        }

        .btn-ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13.5px;
            border-radius: 8px;
        }

        .btn-lg {
            padding: 13px 32px;
            font-size: 16px;
            border-radius: 12px;
        }

        /* Text links */
        .text-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 14.5px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .text-link:hover {
            color: var(--accent);
        }

        .text-link i {
            font-size: 12px;
            transition: transform 0.2s ease;
        }

        .text-link:hover i {
            transform: translateX(3px);
        }

        /* Card base */
        .card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border-mid);
        }

        .card-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 16px;
            aspect-ratio: 16 / 10;
            background-color: var(--light-bg);
        }

        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .card:hover .card-img img {
            transform: scale(1.03);
        }

        .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .card-desc {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        /* Tag / badge */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            letter-spacing: 0.04em;
        }

        .tag-accent {
            background: rgba(230, 73, 61, 0.1);
            color: var(--accent);
        }

        .tag-outline {
            background: transparent;
            border: 1px solid var(--border-mid);
            color: var(--text-secondary);
        }

        /* ========== HEADER / NAV ========== */
        .promo-bar {
            background: var(--primary-deeper);
            color: rgba(255, 255, 255, 0.9);
            font-size: 12.5px;
            text-align: center;
            padding: 8px 16px;
            min-height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            letter-spacing: 0.03em;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .promo-bar .promo-icon {
            color: #F6C453;
            font-size: 13px;
        }

        .promo-bar .promo-link {
            color: #F6C453;
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .promo-bar .promo-link:hover {
            color: #FFD97E;
        }

        .main-header {
            background: var(--card-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.03);
        }

        .main-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .main-nav>li {
            position: relative;
        }

        .main-nav>li>a {
            display: block;
            padding: 10px 14px;
            font-size: 14.5px;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: 8px;
            letter-spacing: 0.02em;
        }

        .main-nav>li>a:hover {
            color: var(--primary);
            background: rgba(31, 110, 63, 0.06);
        }

        .main-nav>li>a.active {
            color: var(--primary);
            background: rgba(31, 110, 63, 0.1);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .header-icon-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 17px;
            background: transparent;
            border: 1px solid transparent;
        }

        .header-icon-btn:hover {
            color: var(--primary);
            background: rgba(31, 110, 63, 0.06);
            border-color: var(--border-light);
        }

        .header-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            background: var(--accent);
            color: #fff;
            border: 2px solid var(--accent);
            white-space: nowrap;
        }

        .header-cta-btn:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(201, 58, 47, 0.25);
        }

        .mobile-menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid var(--border-light);
        }

        .mobile-menu-toggle:hover {
            background: rgba(31, 110, 63, 0.06);
        }

        /* Mobile drawer */
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 200;
            display: none;
        }

        .drawer-overlay.open {
            display: block;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 78%;
            max-width: 360px;
            height: 100vh;
            background: var(--card-white);
            z-index: 210;
            transition: right 0.28s ease;
            box-shadow: -6px 0 24px rgba(0, 0, 0, 0.12);
            display: flex;
            flex-direction: column;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            right: 0;
        }

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-light);
        }

        .drawer-close {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid var(--border-light);
        }

        .drawer-close:hover {
            background: rgba(31, 110, 63, 0.06);
            color: var(--primary);
        }

        .drawer-nav {
            list-style: none;
            padding: 16px 20px;
            flex: 1;
        }

        .drawer-nav li a {
            display: block;
            padding: 14px 4px;
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            border-bottom: 1px solid var(--border-light);
            transition: color var(--transition), padding-left var(--transition);
        }

        .drawer-nav li a:hover,
        .drawer-nav li a.active {
            color: var(--primary);
            padding-left: 10px;
        }

        .drawer-footer {
            padding: 16px 20px 24px;
            border-top: 1px solid var(--border-light);
        }

        .drawer-footer .btn {
            width: 100%;
            margin-bottom: 10px;
        }

        .drawer-footer .drawer-note {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
        }

        /* ========== HERO ========== */
        .hero {
            background: var(--dark-bg);
            min-height: 82vh;
            display: flex;
            align-items: center;
            position: relative;
            padding: 48px 0 72px;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.38;
            z-index: 0;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 42, 26, 0.72) 0%, rgba(15, 42, 26, 0.45) 50%, rgba(15, 42, 26, 0.82) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-content {
            max-width: 680px;
        }

        .hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #EAF4EC;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 0.04em;
            backdrop-filter: blur(6px);
        }

        .hero h1 {
            color: #fff;
            font-size: 46px;
            font-weight: 800;
            line-height: 1.22;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .hero .hero-subtitle {
            color: rgba(255, 255, 255, 0.82);
            font-size: 17px;
            line-height: 1.8;
            max-width: 600px;
            margin-bottom: 26px;
        }

        .hero-cta-row {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .hero-trust-row {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 13.5px;
            font-weight: 500;
        }

        .hero-trust-item i {
            color: #F6C453;
            font-size: 14px;
        }

        .hero-trust-item .trust-divider {
            width: 1px;
            height: 16px;
            background: rgba(255, 255, 255, 0.2);
            margin: 0 4px;
        }

        .hero-route-card {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 12px;
            padding: 18px 20px;
            margin-top: 30px;
            backdrop-filter: blur(4px);
            max-width: 560px;
        }

        .hero-route-card .route-label {
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: #F6C453;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .hero-route-steps {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .hero-route-step {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            white-space: nowrap;
        }

        .hero-route-step .step-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #F6C453;
            flex-shrink: 0;
        }

        .hero-route-arrow {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
        }

        /* ========== TRUST STRIP ========== */
        .trust-strip {
            background: var(--card-white);
            border-bottom: 1px solid var(--border-light);
            padding: 28px 0;
        }

        .trust-strip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .trust-stat {
            text-align: center;
            padding: 8px 12px;
        }

        .trust-stat .stat-value {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            font-family: var(--font-num);
            line-height: 1.2;
        }

        .trust-stat .stat-value .stat-unit {
            font-size: 16px;
            font-weight: 600;
        }

        .trust-stat .stat-label {
            font-size: 13.5px;
            color: var(--text-secondary);
            font-weight: 500;
            margin-top: 4px;
        }

        /* ========== FEATURE CARDS ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            text-align: left;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-card .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(31, 110, 63, 0.09);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
        }

        .feature-card .feature-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .feature-card .feature-desc {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== SCENE GALLERY ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .scene-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--dark-bg);
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .scene-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .scene-card .scene-img {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.55;
            transition: opacity 0.3s ease;
        }

        .scene-card:hover .scene-img {
            opacity: 0.7;
        }

        .scene-card .scene-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 42, 26, 0.2) 0%, rgba(15, 42, 26, 0.85) 80%);
        }

        .scene-card .scene-info {
            position: relative;
            z-index: 2;
            padding: 24px;
            width: 100%;
        }

        .scene-card .scene-info h3 {
            color: #fff;
            font-size: 19px;
            margin-bottom: 6px;
        }

        .scene-card .scene-info p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== SPEC CARDS ========== */
        .spec-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .spec-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), border-color var(--transition);
        }

        .spec-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
        }

        .spec-card .spec-icon {
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .spec-card .spec-value {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            font-family: var(--font-num);
        }

        .spec-card .spec-name {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 4px;
        }

        .spec-card .spec-detail {
            font-size: 12.5px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .testimonial-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
            position: relative;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .testimonial-card .quote-mark {
            font-size: 40px;
            color: rgba(31, 110, 63, 0.15);
            line-height: 1;
            position: absolute;
            top: 16px;
            right: 20px;
            font-family: Georgia, serif;
        }

        .testimonial-card .stars {
            color: #F6C453;
            font-size: 14px;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }

        .testimonial-card .testimonial-text {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(31, 110, 63, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }

        .testimonial-card .author-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .testimonial-card .author-role {
            font-size: 12.5px;
            color: var(--text-muted);
        }

        /* ========== COMPARISON ========== */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: stretch;
        }

        .comparison-panel {
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 2px solid var(--border-light);
            background: var(--card-white);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .comparison-panel:hover {
            box-shadow: var(--shadow-md);
        }

        .comparison-panel.panel-featured {
            border-color: var(--primary);
            background: linear-gradient(135deg, rgba(31, 110, 63, 0.04) 0%, var(--card-white) 60%);
        }

        .comparison-panel.panel-featured:hover {
            border-color: var(--primary-dark);
            box-shadow: var(--shadow-lg);
        }

        .comparison-panel .panel-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .comparison-panel.panel-featured .panel-title {
            color: var(--primary);
        }

        .comparison-panel .panel-sub {
            font-size: 13.5px;
            color: var(--text-muted);
            margin-bottom: 18px;
        }

        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-list li i {
            flex-shrink: 0;
            margin-top: 3px;
            font-size: 14px;
        }

        .comparison-list li i.fa-check {
            color: var(--primary);
        }

        .comparison-list li i.fa-minus {
            color: var(--text-muted);
        }

        .comparison-list li i.fa-xmark {
            color: var(--accent);
        }

        /* ========== NEWS CARDS ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .news-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .news-card .news-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--light-bg);
        }

        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .news-card:hover .news-img img {
            transform: scale(1.05);
        }

        .news-card .news-body {
            padding: 16px 18px;
        }

        .news-card .news-title {
            font-size: 15.5px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .news-card .news-excerpt {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 10px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-mid);
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15.5px;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            width: 100%;
            text-align: left;
        }

        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.25s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.85);
            padding: var(--section-pad) 0;
        }

        .brand-intro .brand-intro-title {
            color: #fff;
            font-size: 28px;
            margin-bottom: 18px;
        }

        .brand-intro p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 15.5px;
            line-height: 1.85;
            max-width: 820px;
        }

        .brand-intro .brand-intro-highlight {
            color: #F6C453;
            font-weight: 600;
        }

        /* ========== STEPS ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .step-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
            position: relative;
        }

        .step-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .step-card .step-number {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            margin: 0 auto 14px;
            font-family: var(--font-num);
        }

        .step-card .step-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .step-card .step-desc {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ========== GALLERY ========== */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .gallery-item {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background: var(--light-bg);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .gallery-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .gallery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .gallery-item:hover img {
            transform: scale(1.04);
        }

        /* ========== GUARANTEE STRIP ========== */
        .guarantee-strip {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .guarantee-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 8px;
        }

        .guarantee-item .guarantee-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .guarantee-item .guarantee-text {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .guarantee-item .guarantee-sub {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary-deeper);
            padding: 56px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            left: -20%;
            width: 60%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section .cta-content {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 32px;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .cta-section .cta-btns {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ========== FLOATING CTA BAR ========== */
        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--dark-bg);
            border-top: 2px solid rgba(255, 255, 255, 0.08);
            padding: 12px 20px;
            z-index: 150;
            box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.12);
        }

        .floating-cta-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .floating-cta-info {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }

        .floating-cta-info .floating-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.1);
            color: #F6C453;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .floating-cta-info .floating-text {
            color: rgba(255, 255, 255, 0.75);
            font-size: 13px;
            line-height: 1.5;
        }

        .floating-cta-info .floating-text strong {
            color: #fff;
            font-weight: 700;
            font-size: 14px;
        }

        .floating-cta .floating-price {
            color: #F6C453;
            font-weight: 700;
            font-size: 16px;
            font-family: var(--font-num);
            white-space: nowrap;
        }

        .floating-cta .btn {
            flex-shrink: 0;
        }

        body.has-floating-cta {
            padding-bottom: 70px;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1.2fr 1.2fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-brand .footer-logo .logo-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 7px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 14px;
        }

        .footer-brand p {
            font-size: 13.5px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.75;
            max-width: 300px;
        }

        .footer-col .footer-title {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13.5px;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: #F6C453;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a:hover {
            color: #F6C453;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 38px;
            }
            .trust-strip-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .spec-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 48px;
                --section-pad-mobile: 36px;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .hero {
                min-height: auto;
                padding: 40px 0 56px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero .hero-subtitle {
                font-size: 15.5px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .spec-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .main-nav {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .header-cta-btn {
                display: none;
            }
            .header-actions .header-icon-btn {
                display: none;
            }
            .header-actions .mobile-menu-toggle {
                display: flex;
            }
            .promo-bar {
                font-size: 11.5px;
                padding: 6px 12px;
                min-height: 30px;
            }
            .hero-cta-row {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }
            .hero-cta-row .btn {
                width: 100%;
            }
            .hero-trust-row {
                gap: 10px;
            }
            .hero-trust-item {
                font-size: 12px;
            }
            .hero-trust-item .trust-divider {
                display: none;
            }
            .hero-route-card {
                padding: 14px 16px;
            }
            .hero-route-step {
                font-size: 11.5px;
                padding: 4px 10px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .trust-strip-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .trust-stat .stat-value {
                font-size: 26px;
            }
            .floating-cta {
                padding: 10px 14px;
            }
            .floating-cta-info .floating-text {
                font-size: 11.5px;
            }
            .floating-cta-info .floating-text strong {
                font-size: 12.5px;
            }
            .floating-cta .floating-price {
                font-size: 14px;
            }
            .floating-cta .btn {
                padding: 8px 16px;
                font-size: 13px;
            }
            body.has-floating-cta {
                padding-bottom: 60px;
            }
            .faq-question {
                font-size: 14.5px;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 13.5px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 27px;
            }
            .hero .hero-subtitle {
                font-size: 14.5px;
            }
            .section-header h2 {
                font-size: 21px;
            }
            .trust-strip-grid {
                grid-template-columns: 1fr 1fr;
            }
            .spec-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .gallery-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .comparison-panel {
                padding: 20px 16px;
            }
            .footer {
                padding: 36px 0 20px;
            }
            .floating-cta {
                padding: 8px 12px;
            }
            .floating-cta-inner {
                gap: 10px;
            }
            .floating-cta-info .floating-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .floating-cta .floating-price {
                display: none;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1F6E3F;
            --primary-dark: #1D5C37;
            --primary-deeper: #154A2C;
            --accent: #E6493D;
            --accent-dark: #C93A2F;
            --dark-bg: #0F2A1A;
            --dark-bg-2: #13271A;
            --light-bg: #F5F6F1;
            --light-bg-2: #F7F5EF;
            --card-white: #FFFFFF;
            --border-light: #DDE5DD;
            --border-mid: #D6E1D6;
            --text-primary: #162318;
            --text-secondary: #506055;
            --text-muted: #7A8A7E;
            --text-on-dark: #FFFFFF;
            --text-on-dark-muted: #B8C8BC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(15, 42, 26, 0.10);
            --transition: 0.22s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-num: Georgia, 'Times New Roman', 'Songti SC', serif;
            --section-pad: 70px;
            --section-pad-mobile: 48px;
            --container-max: 1200px;
        }
        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15.5px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 90px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), background var(--transition), border-color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.12s ease, box-shadow var(--transition);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section-alt {
            background-color: var(--card-white);
        }
        .section-tight {
            padding: 48px 0;
        }
        .section-header {
            margin-bottom: 36px;
        }
        .section-header .eyebrow {
            display: inline-block;
            font-size: 12.5px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(31, 110, 63, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.75;
        }
        .section-header .header-note {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 8px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            text-align: center;
            transition: all 0.22s ease;
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .btn-primary {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background-color: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 58, 47, 0.28);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(201, 58, 47, 0.2);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background-color: rgba(31, 110, 63, 0.07);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }
        .btn-secondary:active {
            background-color: rgba(31, 110, 63, 0.12);
        }
        .btn-ghost-light {
            background-color: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.45);
        }
        .btn-ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13.5px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }
        /* Header */
        .top-bar-promo {
            background: var(--dark-bg);
            color: var(--text-on-dark-muted);
            font-size: 12.5px;
            text-align: center;
            padding: 8px 16px;
            letter-spacing: 0.03em;
            min-height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .top-bar-promo .promo-icon {
            color: var(--accent);
        }
        .top-bar-promo .promo-sep {
            color: rgba(255, 255, 255, 0.25);
            margin: 0 6px;
        }
        .header-main {
            background: var(--card-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.03);
            position: sticky;
            top: 0;
            z-index: 80;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 24px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 18px;
        }
        .logo-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }
        .main-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav > li > a {
            display: block;
            padding: 8px 14px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
        }
        .main-nav > li > a:hover {
            color: var(--primary);
            background: rgba(31, 110, 63, 0.06);
        }
        .main-nav > li > a.active {
            color: var(--primary);
            background: rgba(31, 110, 63, 0.08);
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .header-icon-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-size: 16px;
            transition: all var(--transition);
        }
        .header-icon-btn:hover {
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
        }
        .header-cta {
            background: var(--accent);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            white-space: nowrap;
            border: 2px solid var(--accent);
        }
        .header-cta:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(201, 58, 47, 0.25);
        }
        .header-burger {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            border-radius: var(--radius-md);
            color: var(--text-primary);
            transition: all var(--transition);
        }
        .header-burger:hover {
            background: rgba(31, 110, 63, 0.08);
        }
        /* Mobile drawer */
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 42, 26, 0.45);
            z-index: 95;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.25s ease;
        }
        .drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 78%;
            max-width: 340px;
            height: 100vh;
            background: var(--card-white);
            z-index: 100;
            transition: right 0.28s ease;
            box-shadow: -12px 0 32px rgba(0,0,0,0.12);
            padding: 28px 22px 24px;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .mobile-drawer.open {
            right: 0;
        }
        .mobile-drawer-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .drawer-close {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .drawer-close:hover {
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
        }
        .drawer-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .drawer-nav > li > a {
            display: block;
            padding: 14px 16px;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-md);
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .drawer-nav > li > a:hover {
            background: rgba(31, 110, 63, 0.06);
            color: var(--primary);
        }
        .drawer-nav > li > a.active {
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            font-weight: 600;
            border-color: rgba(31, 110, 63, 0.18);
        }
        .drawer-footer {
            margin-top: auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .drawer-cta {
            background: var(--accent);
            color: #fff;
            padding: 14px 20px;
            border-radius: var(--radius-md);
            font-weight: 600;
            text-align: center;
            font-size: 15px;
            border: 2px solid var(--accent);
        }
        .drawer-cta:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
        }
        /* Category header */
        .category-header {
            background: var(--light-bg);
            border-bottom: 1px solid var(--border-light);
            padding: 32px 0 28px;
        }
        .breadcrumbs {
            list-style: none;
            margin: 0 0 14px;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .breadcrumbs li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumbs a {
            color: var(--text-muted);
        }
        .breadcrumbs a:hover {
            color: var(--primary);
        }
        .breadcrumbs .breadcrumb-sep {
            color: var(--border-mid);
            font-size: 12px;
        }
        .breadcrumbs .breadcrumb-current {
            color: var(--primary);
            font-weight: 500;
        }
        .category-header h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0 0 10px;
        }
        .category-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 760px;
            margin: 0;
            line-height: 1.75;
        }
        /* Cards grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scene-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }
        .scene-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-mid);
        }
        .scene-card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background-color: var(--light-bg);
        }
        .scene-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .scene-card:hover .scene-card-img img {
            transform: scale(1.04);
        }
        .scene-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(15, 42, 26, 0.75);
            color: #fff;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.04em;
        }
        .scene-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .scene-card-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .scene-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 16px;
            line-height: 1.7;
            flex: 1;
        }
        .scene-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .scene-card-link:hover {
            color: var(--accent);
            gap: 10px;
        }
        /* Filter visual bar */
        .filter-bar {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            box-shadow: var(--shadow-sm);
        }
        .filter-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 0.05em;
            margin-right: 4px;
        }
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            background: var(--light-bg);
            border: 1px solid var(--border-light);
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(31, 110, 63, 0.05);
        }
        .filter-tag.active-tag {
            background: rgba(31, 110, 63, 0.08);
            border-color: var(--primary);
            color: var(--primary);
            font-weight: 600;
        }
        .filter-tag .tag-icon {
            font-size: 12px;
            color: var(--primary);
        }
        /* Topic entry */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .topic-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-mid);
        }
        .topic-card .topic-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        .topic-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
            line-height: 1.4;
        }
        .topic-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.65;
            flex: 1;
        }
        .topic-card .topic-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topic-card .topic-link:hover {
            color: var(--accent);
        }
        /* Tips */
        .tips-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .tip-item {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 22px;
            display: flex;
            gap: 14px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .tip-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
        }
        .tip-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: rgba(230, 73, 61, 0.08);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }
        .tip-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 6px;
        }
        .tip-item p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.65;
        }
        /* Support note */
        .support-note {
            background: var(--light-bg);
            border-left: 4px solid var(--primary);
            padding: 28px 30px;
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
            box-shadow: var(--shadow-sm);
        }
        .support-note h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 10px;
        }
        .support-note p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0 0 12px;
            line-height: 1.75;
        }
        .support-note p:last-child {
            margin-bottom: 0;
        }
        /* Local CTA */
        .local-cta {
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .local-cta-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }
        .local-cta-content p {
            font-size: 15px;
            color: var(--text-on-dark-muted);
            margin: 0;
            max-width: 560px;
        }
        .local-cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        /* Related articles */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-mid);
        }
        .related-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: var(--light-bg);
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.04);
        }
        .related-card-body {
            padding: 18px 20px 20px;
        }
        .related-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .related-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 12px;
            line-height: 1.65;
        }
        .related-card-body .related-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-card-body .related-link:hover {
            color: var(--accent);
        }
        /* Footer */
        .footer {
            background: var(--dark-bg-2);
            color: var(--text-on-dark-muted);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-logo .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 18px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-on-dark-muted);
            margin: 0;
            max-width: 340px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            color: var(--text-on-dark-muted);
            font-size: 14px;
            transition: all var(--transition);
        }
        .footer-col ul a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 18px 0 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
        }
        .footer-bottom span {
            color: rgba(255,255,255,0.5);
        }
        /* Bottom fixed CTA */
        .bottom-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--dark-bg);
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 12px 20px;
            z-index: 90;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            box-shadow: 0 -4px 20px rgba(15,42,26,0.25);
        }
        .bottom-cta-bar .cta-info {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }
        .bottom-cta-bar .cta-info .cta-logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }
        .bottom-cta-bar .cta-text {
            font-size: 13.5px;
            color: var(--text-on-dark-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .bottom-cta-bar .cta-text strong {
            color: #fff;
            font-weight: 600;
        }
        .bottom-cta-bar .btn {
            flex-shrink: 0;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tips-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .header-burger {
                display: flex;
            }
            .header-inner {
                height: 64px;
                gap: 12px;
            }
            .logo-text {
                font-size: 17px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .header-cta {
                display: none;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .tips-list {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .local-cta {
                padding: 30px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
            .local-cta-content h2 {
                font-size: 22px;
            }
            .bottom-cta-bar {
                padding: 10px 14px;
            }
            .bottom-cta-bar .cta-text {
                font-size: 12px;
            }
            .bottom-cta-bar .cta-text strong {
                font-size: 12.5px;
            }
            .bottom-cta-bar .btn {
                padding: 9px 16px;
                font-size: 13px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px;
            }
            .top-bar-promo {
                font-size: 11.5px;
                padding: 6px 12px;
            }
            .bottom-cta-bar .cta-text {
                font-size: 11px;
            }
            .bottom-cta-bar .cta-logo-icon {
                width: 28px;
                height: 28px;
                font-size: 13px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1F6E3F;
            --primary-dark: #1D5C37;
            --primary-deeper: #154A2C;
            --accent: #E6493D;
            --accent-dark: #C93A2F;
            --dark-bg: #0F2A1A;
            --dark-bg-2: #13271A;
            --light-bg: #F5F6F1;
            --light-bg-2: #F7F5EF;
            --card-white: #FFFFFF;
            --border-light: #DDE5DD;
            --border-mid: #D6E1D6;
            --text-primary: #162318;
            --text-secondary: #506055;
            --text-muted: #7A8A7E;
            --text-on-dark: #FFFFFF;
            --text-on-dark-muted: #B8C8BC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(15, 42, 26, 0.10);
            --transition: 0.22s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-num: Georgia, 'Times New Roman', 'Songti SC', serif;
            --section-pad: 70px;
            --section-pad-mobile: 48px;
            --container-max: 1200px;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            box-sizing: border-box;
        }

        *,
        *::before,
        *::after {
            box-sizing: inherit;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15.5px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 72px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), background var(--transition), border-color var(--transition);
        }

        a:hover {
            color: var(--accent);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.12s ease, box-shadow var(--transition);
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-pad) 0;
        }

        .section-alt {
            background-color: var(--card-white);
        }

        .section-tight {
            padding: 48px 0;
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-header .eyebrow {
            display: inline-block;
            font-size: 12.5px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(31, 110, 63, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.75;
        }

        .section-header .header-note {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            text-align: center;
            transition: all 0.22s ease;
            white-space: nowrap;
            border: 2px solid transparent;
        }

        .btn-primary {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-primary:hover {
            background-color: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 58, 47, 0.28);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(201, 58, 47, 0.2);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-secondary:hover {
            background-color: rgba(31, 110, 63, 0.07);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }

        .btn-secondary:active {
            background-color: rgba(31, 110, 63, 0.12);
        }

        .btn-ghost-light {
            background-color: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.45);
        }

        .btn-ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13.5px;
            border-radius: var(--radius-sm);
        }

        .btn-block {
            width: 100%;
        }

        .num {
            font-family: var(--font-num);
            font-variant-numeric: tabular-nums;
        }

        /* Top promo bar */
        .promo-bar {
            background-color: var(--accent);
            color: #fff;
            font-size: 12.5px;
            font-weight: 500;
            letter-spacing: 0.02em;
            text-align: center;
            padding: 8px 16px;
            line-height: 1.4;
            min-height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .promo-bar i {
            font-size: 13px;
        }

        /* Header */
        .site-header {
            background-color: #fff;
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 6px rgba(15, 42, 26, 0.04);
            position: relative;
            z-index: 40;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            min-height: 72px;
            padding-top: 10px;
            padding-bottom: 10px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 16px;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
        }

        .main-nav li a:hover {
            color: var(--primary);
            background: rgba(31, 110, 63, 0.06);
        }

        .main-nav li a.active {
            color: var(--primary);
            background: rgba(31, 110, 63, 0.1);
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .header-icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            color: var(--text-secondary);
            font-size: 16px;
            border: 1px solid var(--border-light);
            background: #fff;
            transition: all var(--transition);
        }

        .header-icon-btn:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(31, 110, 63, 0.04);
        }

        .header-cta {
            padding: 9px 20px;
            font-size: 14px;
            border-radius: var(--radius-sm);
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--text-primary);
            font-size: 16px;
            align-items: center;
            justify-content: center;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 42, 26, 0.45);
            z-index: 49;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .drawer-overlay.open {
            opacity: 1;
        }

        .drawer {
            position: fixed;
            top: 0;
            right: -80%;
            width: 78%;
            max-width: 320px;
            height: 100%;
            background: #fff;
            z-index: 50;
            box-shadow: -8px 0 32px rgba(15, 42, 26, 0.18);
            transition: right 0.3s ease;
            display: flex;
            flex-direction: column;
            padding: 24px;
        }

        .drawer.open {
            right: 0;
        }

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
        }

        .drawer-header .logo {
            font-size: 17px;
        }

        .drawer-close {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }

        .drawer-nav a {
            display: block;
            padding: 12px 10px;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
        }

        .drawer-nav a:hover {
            background: rgba(31, 110, 63, 0.06);
            color: var(--primary);
        }

        .drawer-nav a.active {
            background: rgba(31, 110, 63, 0.1);
            color: var(--primary);
            font-weight: 600;
        }

        .drawer-footer {
            padding-top: 16px;
            border-top: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 13.5px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .separator {
            color: var(--border-mid);
            font-size: 11px;
        }

        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* Category page header */
        .category-header {
            background-color: var(--dark-bg);
            background-image: linear-gradient(150deg, rgba(15, 42, 26, 0.96) 0%, rgba(21, 74, 44, 0.9) 55%, rgba(13, 34, 21, 0.98) 100%), url('/assets/images/7843495e7a79a4aa.webp');
            background-size: cover;
            background-position: center;
            padding: 56px 0 48px;
            color: #fff;
            position: relative;
        }

        .category-header .breadcrumb a,
        .category-header .breadcrumb .current,
        .category-header .breadcrumb .separator {
            color: var(--text-on-dark-muted);
        }

        .category-header .breadcrumb a:hover {
            color: #fff;
        }

        .category-header h1 {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.25;
            letter-spacing: 0.01em;
        }

        .category-header .lead {
            font-size: 16px;
            color: var(--text-on-dark-muted);
            max-width: 680px;
            line-height: 1.7;
        }

        /* Product cards grid */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .product-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
        }

        .product-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-mid);
        }

        .product-card .card-img {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            background: var(--light-bg-2);
            position: relative;
        }

        .product-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .product-card:hover .card-img img {
            transform: scale(1.04);
        }

        .product-card .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 11.5px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            z-index: 2;
        }

        .product-card .badge-green {
            background: var(--primary);
        }

        .product-card .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .product-card .card-title {
            font-size: 17.5px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.35;
        }

        .product-card .card-sub {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .product-card .card-desc {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 14px;
            flex: 1;
        }

        .product-card .spec-list {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 14px;
        }

        .product-card .spec-tag {
            font-size: 11.5px;
            color: var(--text-secondary);
            background: var(--light-bg);
            border: 1px solid var(--border-light);
            padding: 3px 10px;
            border-radius: 20px;
            white-space: nowrap;
        }

        .product-card .card-link {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color var(--transition), gap var(--transition);
        }

        .product-card .card-link:hover {
            color: var(--accent);
            gap: 8px;
        }

        /* Filter bar */
        .filter-bar {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-sm);
        }

        .filter-bar .filter-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .filter-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .filter-chip {
            font-size: 12.5px;
            color: var(--text-secondary);
            background: var(--light-bg);
            border: 1px solid var(--border-light);
            padding: 5px 14px;
            border-radius: 20px;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(31, 110, 63, 0.05);
        }

        .filter-chip.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* Topic cards */
        .topic-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 16px;
            height: 100%;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border-mid);
        }

        .topic-card .topic-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .topic-card h3 {
            font-size: 16.5px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.35;
        }

        .topic-card p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .topic-card a {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .topic-card a:hover {
            color: var(--accent);
        }

        /* Tips */
        .tip-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            height: 100%;
            transition: box-shadow var(--transition), border-color var(--transition);
        }

        .tip-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
        }

        .tip-item .tip-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(230, 73, 61, 0.08);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .tip-item .tip-icon.green {
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
        }

        .tip-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .tip-item p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Support note */
        .support-note {
            background: var(--light-bg-2);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .support-note .note-text {
            flex: 1;
            min-width: 260px;
        }

        .support-note h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .support-note p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* Local CTA */
        .local-cta {
            background: var(--dark-bg);
            background-image: linear-gradient(135deg, rgba(15, 42, 26, 0.97) 0%, rgba(21, 74, 44, 0.9) 60%, rgba(13, 34, 21, 0.98) 100%);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            box-shadow: var(--shadow-lg);
        }

        .local-cta h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .local-cta p {
            color: var(--text-on-dark-muted);
            font-size: 15px;
            line-height: 1.65;
            max-width: 560px;
            margin-bottom: 0;
        }

        .local-cta .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Related articles */
        .related-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            gap: 16px;
            padding: 16px;
            align-items: center;
            height: 100%;
        }

        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .related-card .rel-img {
            width: 90px;
            height: 70px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--light-bg-2);
        }

        .related-card .rel-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .related-card h4 {
            font-size: 14.5px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .related-card p {
            font-size: 12.5px;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 0;
        }

        /* Footer */
        .footer {
            background: var(--dark-bg);
            color: #fff;
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer .container {
            max-width: var(--container-max);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 14px;
        }

        .footer-brand p {
            font-size: 13.5px;
            color: var(--text-on-dark-muted);
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 0;
        }

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-on-dark-muted);
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .footer-col ul a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 12.5px;
            color: var(--text-on-dark-muted);
        }

        /* Fixed bottom conversion bar */
        .sticky-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: #fff;
            border-top: 3px solid var(--accent);
            box-shadow: 0 -4px 24px rgba(15, 42, 26, 0.12);
            z-index: 45;
            padding: 10px 24px;
            transition: transform 0.3s ease;
        }

        .sticky-cta .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            max-width: var(--container-max);
        }

        .sticky-cta .sticky-info {
            display: flex;
            align-items: center;
            gap: 14px;
            min-width: 0;
        }

        .sticky-cta .sticky-thumb {
            width: 44px;
            height: 36px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--light-bg-2);
            flex-shrink: 0;
        }

        .sticky-cta .sticky-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .sticky-cta .sticky-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .sticky-cta .sticky-price {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .sticky-cta .sticky-price .num {
            font-size: 15px;
            font-weight: 700;
            color: var(--accent);
        }

        .sticky-cta .sticky-actions {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .category-header h1 {
                font-size: 30px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 48px;
            }

            .main-nav {
                display: none;
            }

            .header-actions .header-icon-btn:not(.nav-toggle) {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .drawer-overlay {
                display: block;
                pointer-events: none;
            }

            .drawer-overlay.open {
                pointer-events: auto;
            }

            .category-header {
                padding: 36px 0 32px;
            }

            .category-header h1 {
                font-size: 26px;
            }

            .product-grid {
                grid-template-columns: 1fr;
            }

            .filter-bar {
                padding: 12px 14px;
                gap: 8px;
            }

            .topic-card {
                padding: 18px;
            }

            .support-note {
                padding: 20px;
                flex-direction: column;
                align-items: flex-start;
            }

            .local-cta {
                padding: 28px 22px;
                flex-direction: column;
                align-items: flex-start;
            }

            .local-cta .cta-actions {
                width: 100%;
            }

            .local-cta .cta-actions .btn {
                flex: 1;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .sticky-cta {
                padding: 8px 16px;
            }

            .sticky-cta .sticky-thumb {
                width: 36px;
                height: 30px;
            }

            .sticky-cta .sticky-name {
                font-size: 13px;
            }

            .sticky-cta .sticky-price {
                font-size: 11px;
            }

            .sticky-cta .sticky-actions .btn {
                padding: 8px 14px;
                font-size: 13px;
            }

            body {
                padding-bottom: 62px;
            }
        }

        @media (max-width: 520px) {
            .category-header h1 {
                font-size: 22px;
            }

            .container {
                padding: 0 16px;
            }

            .sticky-cta .sticky-info {
                gap: 8px;
            }

            .sticky-cta .sticky-actions .btn {
                padding: 7px 12px;
                font-size: 12px;
                white-space: nowrap;
            }

            .local-cta .cta-actions {
                flex-direction: column;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1F6E3F;
            --primary-dark: #1D5C37;
            --primary-deeper: #154A2C;
            --accent: #E6493D;
            --accent-dark: #C93A2F;
            --dark-bg: #0F2A1A;
            --dark-bg-2: #13271A;
            --light-bg: #F5F6F1;
            --light-bg-2: #F7F5EF;
            --card-white: #FFFFFF;
            --border-light: #DDE5DD;
            --border-mid: #D6E1D6;
            --text-primary: #162318;
            --text-secondary: #506055;
            --text-muted: #7A8A7E;
            --text-on-dark: #FFFFFF;
            --text-on-dark-muted: #B8C8BC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(15, 42, 26, 0.10);
            --transition: 0.22s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-num: Georgia, 'Times New Roman', 'Songti SC', serif;
            --section-pad: 70px;
            --section-pad-mobile: 48px;
            --container-max: 1200px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15.5px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding-bottom: 72px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), background var(--transition), border-color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.12s ease, box-shadow var(--transition);
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Promotion bar */
        .promo-bar {
            background-color: var(--dark-bg);
            color: #fff;
            font-size: 12.5px;
            letter-spacing: 0.03em;
            text-align: center;
            padding: 8px 16px;
            min-height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            line-height: 1.4;
        }
        .promo-bar i {
            color: var(--accent);
            font-size: 13px;
        }
        .promo-bar span {
            opacity: 0.9;
        }
        /* Main header */
        .site-header {
            background-color: #fff;
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 60;
            box-shadow: 0 2px 12px rgba(15, 42, 26, 0.05);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background-color: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
            background-color: rgba(31, 110, 63, 0.06);
        }
        .main-nav a.active {
            color: var(--primary);
            background-color: rgba(31, 110, 63, 0.1);
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .icon-btn {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: var(--text-secondary);
            background-color: transparent;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .icon-btn:hover {
            color: var(--primary);
            border-color: var(--primary);
            background-color: rgba(31, 110, 63, 0.05);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background-color: var(--accent);
            color: #fff;
            font-size: 13.5px;
            font-weight: 600;
            padding: 9px 18px;
            border-radius: var(--radius-md);
            white-space: nowrap;
            transition: all var(--transition);
            border: 2px solid var(--accent);
        }
        .header-cta:hover {
            background-color: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(201, 58, 47, 0.25);
        }
        .mobile-menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background-color: #fff;
            color: var(--text-primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .mobile-menu-toggle:hover {
            background-color: rgba(31, 110, 63, 0.06);
            border-color: var(--primary);
            color: var(--primary);
        }
        /* Mobile drawer */
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.45);
            z-index: 70;
            opacity: 0;
            visibility: hidden;
            transition: opacity var(--transition), visibility var(--transition);
        }
        .drawer-overlay.open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            width: 78%;
            max-width: 340px;
            height: 100%;
            background-color: #fff;
            z-index: 71;
            box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
            transform: translateX(100%);
            transition: transform 0.28s ease;
            display: flex;
            flex-direction: column;
            padding: 0;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-light);
        }
        .drawer-header .logo {
            font-size: 17px;
        }
        .drawer-close {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background-color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--text-secondary);
        }
        .drawer-close:hover {
            color: var(--accent);
            border-color: var(--accent);
        }
        .drawer-nav {
            flex: 1;
            padding: 16px 20px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            overflow-y: auto;
        }
        .drawer-nav a {
            display: block;
            padding: 14px 12px;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            border-bottom: 1px solid var(--border-light);
        }
        .drawer-nav a:hover {
            background-color: rgba(31, 110, 63, 0.05);
            color: var(--primary);
        }
        .drawer-nav a.active {
            color: var(--primary);
            font-weight: 600;
            background-color: rgba(31, 110, 63, 0.08);
        }
        .drawer-footer {
            padding: 16px 20px 24px;
            border-top: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .drawer-footer .btn-primary {
            width: 100%;
            justify-content: center;
        }
        .drawer-footer .promo-note {
            font-size: 12.5px;
            color: var(--text-muted);
            text-align: center;
        }
        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            text-align: center;
            transition: all 0.22s ease;
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .btn-primary {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background-color: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 58, 47, 0.28);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(201, 58, 47, 0.2);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background-color: rgba(31, 110, 63, 0.07);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }
        .btn-secondary:active {
            background-color: rgba(31, 110, 63, 0.12);
        }
        .btn-ghost-light {
            background-color: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.45);
        }
        .btn-ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13.5px;
            border-radius: 8px;
        }
        /* Breadcrumbs */
        .breadcrumb-wrap {
            background-color: var(--light-bg-2);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13.5px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 11px;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        /* Category header */
        .category-header {
            background-color: var(--dark-bg-2);
            padding: 44px 0 40px;
            color: var(--text-on-dark);
            border-bottom: 4px solid var(--primary);
            position: relative;
            overflow: hidden;
        }
        .category-header::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(31, 110, 63, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-header .container {
            position: relative;
            z-index: 1;
        }
        .category-header h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 10px;
            color: #fff;
        }
        .category-header .cat-desc {
            font-size: 16.5px;
            color: var(--text-on-dark-muted);
            max-width: 760px;
            line-height: 1.75;
            margin: 0;
        }
        .cat-stats {
            display: flex;
            gap: 28px;
            margin-top: 22px;
            flex-wrap: wrap;
        }
        .cat-stat {
            display: flex;
            flex-direction: column;
        }
        .cat-stat .num {
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }
        .cat-stat .label {
            font-size: 12.5px;
            color: var(--text-on-dark-muted);
            letter-spacing: 0.03em;
        }
        /* Sections */
        .section {
            padding: var(--section-pad) 0;
        }
        .section-alt {
            background-color: var(--card-white);
        }
        .section-tight {
            padding: 48px 0;
        }
        .section-header {
            margin-bottom: 36px;
        }
        .section-header .eyebrow {
            display: inline-block;
            font-size: 12.5px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(31, 110, 63, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.75;
            margin: 0;
        }
        /* Card grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card-grid.two-col {
            grid-template-columns: repeat(2, 1fr);
        }
        .guide-card {
            background-color: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
        }
        .guide-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--border-mid);
        }
        .guide-card .card-img {
            position: relative;
            aspect-ratio: 4 / 3;
            overflow: hidden;
            background-color: var(--light-bg);
        }
        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .guide-card:hover .card-img img {
            transform: scale(1.04);
        }
        .guide-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background-color: rgba(15, 42, 26, 0.82);
            color: #fff;
            font-size: 11.5px;
            font-weight: 600;
            letter-spacing: 0.03em;
            padding: 4px 10px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }
        .guide-card .card-badge.accent {
            background-color: var(--accent);
        }
        .guide-card .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .guide-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .guide-card .card-body h3 a {
            color: inherit;
        }
        .guide-card .card-body h3 a:hover {
            color: var(--primary);
        }
        .guide-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .guide-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13.5px;
            font-weight: 600;
            color: var(--primary);
        }
        .guide-card .card-link:hover {
            color: var(--accent);
        }
        .guide-card .card-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }
        .guide-card .card-link:hover i {
            transform: translateX(3px);
        }
        /* Filter bar */
        .filter-bar {
            background-color: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
        }
        .filter-bar .filter-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 13px;
            font-size: 12.5px;
            font-weight: 500;
            color: var(--text-secondary);
            background-color: var(--light-bg);
            border: 1px solid var(--border-light);
            border-radius: 20px;
            white-space: nowrap;
            cursor: default;
        }
        .filter-tag i {
            font-size: 11px;
            color: var(--text-muted);
        }
        .filter-tag.active {
            background-color: rgba(31, 110, 63, 0.09);
            border-color: var(--primary);
            color: var(--primary);
            font-weight: 600;
        }
        .filter-tag.active i {
            color: var(--primary);
        }
        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .step-card {
            background-color: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
            transform: translateY(-2px);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #fff;
            font-family: var(--font-num);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .step-card h3 {
            font-size: 17.5px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        /* Tips */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .tip-card {
            background-color: var(--light-bg-2);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: all var(--transition);
        }
        .tip-card:hover {
            border-color: var(--primary);
            background-color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .tip-icon {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background-color: rgba(31, 110, 63, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }
        .tip-card h3 {
            font-size: 15.5px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .tip-card p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }
        /* Support info */
        .support-panel {
            background-color: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            box-shadow: var(--shadow-sm);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .support-panel h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .support-panel p,
        .support-panel li {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }
        .support-panel ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .support-panel li {
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }
        .support-panel li i {
            color: var(--primary);
            font-size: 13px;
            margin-top: 5px;
            flex-shrink: 0;
        }
        /* Local CTA */
        .local-cta {
            background-color: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .local-cta::after {
            content: '';
            position: absolute;
            right: -50px;
            top: -50px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(230, 73, 61, 0.22) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .local-cta .cta-text {
            position: relative;
            z-index: 1;
            flex: 1;
            min-width: 260px;
        }
        .local-cta h2 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .local-cta p {
            font-size: 14px;
            color: var(--text-on-dark-muted);
            margin: 0;
            line-height: 1.6;
        }
        .local-cta .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        /* Related articles */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }
        .related-card {
            background-color: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            display: flex;
            gap: 16px;
            align-items: center;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
            transform: translateY(-2px);
        }
        .related-card .rel-icon {
            flex-shrink: 0;
            width: 46px;
            height: 46px;
            border-radius: 10px;
            background-color: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .related-card h3 {
            font-size: 15.5px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .related-card h3 a {
            color: inherit;
        }
        .related-card h3 a:hover {
            color: var(--primary);
        }
        .related-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }
        /* Footer */
        .footer {
            background-color: var(--dark-bg);
            color: #fff;
            padding: 56px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-on-dark-muted);
            line-height: 1.7;
            margin-top: 12px;
            max-width: 300px;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            white-space: nowrap;
        }
        .footer-logo .logo-icon {
            background-color: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .footer-title {
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 14px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 13.5px;
            color: var(--text-on-dark-muted);
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: #fff;
        }
        .footer-bottom {
            padding: 18px 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.45);
        }
        /* Bottom fixed CTA bar */
        .bottom-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 65;
            background-color: rgba(15, 42, 26, 0.96);
            backdrop-filter: blur(8px);
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            color: #fff;
            padding: 10px 24px;
            min-height: 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
        }
        .bottom-cta-bar .bar-info {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }
        .bottom-cta-bar .bar-product {
            font-size: 13.5px;
            font-weight: 600;
            color: #fff;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .bottom-cta-bar .bar-price {
            font-size: 12.5px;
            color: var(--accent);
            font-weight: 600;
            white-space: nowrap;
        }
        .bottom-cta-bar .bar-btn {
            flex-shrink: 0;
            padding: 9px 20px;
            font-size: 13.5px;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .tips-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .support-panel {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 48px;
                --section-pad-mobile: 36px;
            }
            body {
                padding-bottom: 64px;
            }
            .promo-bar {
                font-size: 11.5px;
                padding: 6px 14px;
                min-height: 32px;
            }
            .site-header .container {
                min-height: 60px;
            }
            .main-nav {
                display: none;
            }
            .header-actions .icon-btn {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .mobile-menu-toggle {
                display: inline-flex;
            }
            .category-header {
                padding: 32px 0 30px;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .cat-stats {
                gap: 18px;
            }
            .cat-stat .num {
                font-size: 22px;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .card-grid.two-col {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .tips-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .support-panel {
                padding: 22px 18px;
            }
            .local-cta {
                padding: 28px 22px;
                flex-direction: column;
                align-items: flex-start;
            }
            .local-cta .cta-actions {
                width: 100%;
                flex-direction: column;
            }
            .local-cta .cta-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer {
                padding-top: 40px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .bottom-cta-bar {
                padding: 8px 16px;
                min-height: 48px;
                gap: 10px;
            }
            .bottom-cta-bar .bar-product {
                font-size: 12px;
            }
            .bottom-cta-bar .bar-price {
                font-size: 11.5px;
            }
            .bottom-cta-bar .bar-btn {
                padding: 8px 16px;
                font-size: 12.5px;
            }
            .filter-bar {
                padding: 12px 14px;
                gap: 8px;
            }
            .filter-tag {
                font-size: 11.5px;
                padding: 5px 10px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-header h1 {
                font-size: 22px;
            }
            .category-header .cat-desc {
                font-size: 14.5px;
            }
            .section-header h2 {
                font-size: 21px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .bottom-cta-bar .bar-info {
                flex-direction: column;
                align-items: flex-start;
                gap: 2px;
            }
            .bottom-cta-bar .bar-btn {
                padding: 8px 14px;
                font-size: 12px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1F6E3F;
            --primary-dark: #1D5C37;
            --primary-deeper: #154A2C;
            --accent: #E6493D;
            --accent-dark: #C93A2F;
            --dark-bg: #0F2A1A;
            --dark-bg-2: #13271A;
            --light-bg: #F5F6F1;
            --light-bg-2: #F7F5EF;
            --card-white: #FFFFFF;
            --border-light: #DDE5DD;
            --border-mid: #D6E1D6;
            --text-primary: #162318;
            --text-secondary: #506055;
            --text-muted: #7A8A7E;
            --text-on-dark: #FFFFFF;
            --text-on-dark-muted: #B8C8BC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(15, 42, 26, 0.10);
            --transition: 0.22s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-num: Georgia, 'Times New Roman', 'Songti SC', serif;
            --section-pad: 56px;
            --section-pad-mobile: 40px;
            --container-max: 1200px;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15.5px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 72px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), background var(--transition), border-color var(--transition);
        }

        a:hover {
            color: var(--accent);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.12s ease, box-shadow var(--transition);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-pad) 0;
        }

        .section-sm {
            padding: 40px 0;
        }

        .section-alt {
            background-color: var(--card-white);
        }

        .section-dark {
            background-color: var(--dark-bg);
            color: var(--text-on-dark);
        }

        .section-dark .section-header h2 {
            color: var(--text-on-dark);
        }

        .section-dark .section-header p {
            color: var(--text-on-dark-muted);
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-header .eyebrow {
            display: inline-block;
            font-size: 12.5px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(31, 110, 63, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.75;
        }

        .section-header .header-note {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            text-align: center;
            transition: all 0.22s ease;
            white-space: nowrap;
            border: 2px solid transparent;
        }

        .btn-primary {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-primary:hover {
            background-color: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 58, 47, 0.28);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(201, 58, 47, 0.2);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-secondary:hover {
            background-color: rgba(31, 110, 63, 0.07);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }

        .btn-secondary:active {
            background-color: rgba(31, 110, 63, 0.12);
        }

        .btn-ghost-light {
            background-color: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.45);
        }

        .btn-ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13.5px;
            border-radius: 8px;
        }

        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
            border-radius: 10px;
        }

        .btn-block {
            width: 100%;
            justify-content: center;
        }

        /* Promo Bar */
        .promo-bar {
            background-color: var(--dark-bg);
            color: #fff;
            font-size: 12.5px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: 0.02em;
            position: relative;
            z-index: 50;
        }

        .promo-bar .promo-inner {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .promo-bar i {
            color: var(--accent);
            font-size: 12px;
        }

        /* Main Nav */
        .main-header {
            background-color: #fff;
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
        }

        .main-nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 19px;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.01em;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .main-nav li a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            transition: all var(--transition);
        }

        .main-nav li a:hover {
            color: var(--primary);
            background: rgba(31, 110, 63, 0.06);
        }

        .main-nav li a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(31, 110, 63, 0.08);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-icon-btn {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 16px;
            border: 1px solid var(--border-light);
            background: #fff;
            transition: all var(--transition);
        }

        .nav-icon-btn:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(31, 110, 63, 0.04);
        }

        .nav-cta {
            background-color: var(--accent);
            color: #fff;
            padding: 9px 20px;
            border-radius: 8px;
            font-size: 13.5px;
            font-weight: 600;
            white-space: nowrap;
            border: none;
            transition: all var(--transition);
        }

        .nav-cta:hover {
            background-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 12px rgba(201, 58, 47, 0.3);
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--text-primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }

        .mobile-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* Mobile Drawer */
        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 198;
            opacity: 0;
            transition: opacity 0.25s ease;
        }

        .drawer-overlay.open {
            opacity: 1;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -80%;
            width: 78%;
            max-width: 340px;
            height: 100vh;
            background: #fff;
            z-index: 200;
            overflow-y: auto;
            padding: 24px;
            transition: right 0.28s ease;
            box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
        }

        .mobile-drawer.open {
            right: 0;
        }

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }

        .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: #fff;
            font-size: 18px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .drawer-close:hover {
            color: var(--accent);
            border-color: var(--accent);
        }

        .drawer-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .drawer-nav li a {
            display: block;
            padding: 14px 16px;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 10px;
            transition: all var(--transition);
        }

        .drawer-nav li a:hover {
            background: rgba(31, 110, 63, 0.06);
            color: var(--primary);
        }

        .drawer-nav li a.active {
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            font-weight: 600;
        }

        .drawer-cta {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 22px 0 0;
            background: var(--light-bg);
        }

        .breadcrumb {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .breadcrumb li a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .breadcrumb li a:hover {
            color: var(--primary);
        }

        .breadcrumb li.separator {
            color: var(--text-muted);
            font-size: 11px;
        }

        .breadcrumb li.current {
            color: var(--primary);
            font-weight: 500;
        }

        /* Category Page Header */
        .category-header {
            padding: 32px 0 16px;
            background: var(--light-bg);
        }

        .category-header-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .category-header-title {
            flex: 1;
            min-width: 280px;
        }

        .category-header-title h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .category-header-title p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.75;
            margin-bottom: 0;
        }

        .category-header-meta {
            display: flex;
            gap: 16px;
            flex-shrink: 0;
            align-items: center;
            flex-wrap: wrap;
        }

        .category-header-meta .meta-badge {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border-light);
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 13.5px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .category-header-meta .meta-badge i {
            color: var(--primary);
            font-size: 14px;
        }

        /* Filter Visual Bar */
        .filter-bar {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 18px 22px;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
            margin-top: 18px;
        }

        .filter-label {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-right: 4px;
        }

        .filter-label i {
            color: var(--primary);
            font-size: 13px;
        }

        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            flex: 1;
        }

        .filter-tag {
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--light-bg);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            white-space: nowrap;
            cursor: default;
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(31, 110, 63, 0.05);
        }

        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* Case Cards Grid */
        .case-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .case-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-mid);
        }

        .case-card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            flex-shrink: 0;
        }

        .case-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .case-card:hover .case-card-img img {
            transform: scale(1.04);
        }

        .case-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .case-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .case-card-body h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .case-card-body p {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .case-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }

        .case-card-meta {
            display: flex;
            gap: 14px;
            font-size: 12.5px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .case-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .case-card-meta i {
            font-size: 12px;
            color: var(--primary);
        }

        .case-link {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .case-link:hover {
            color: var(--accent);
            gap: 8px;
        }

        .case-link i {
            font-size: 11px;
        }

        /* Featured Case */
        .featured-case {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .featured-case-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }

        .featured-case-img {
            min-height: 300px;
            overflow: hidden;
        }

        .featured-case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-case-body {
            padding: 36px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-case-body .case-type-badge {
            display: inline-block;
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            font-size: 12.5px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
            align-self: flex-start;
        }

        .featured-case-body h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .featured-case-body p {
            font-size: 15.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .featured-case-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .featured-stat {
            text-align: left;
        }

        .featured-stat .stat-num {
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
        }

        .featured-stat .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* Tips Section */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 18px;
        }

        .tip-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 22px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .tip-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
            transform: translateY(-2px);
        }

        .tip-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }

        .tip-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .tip-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Supporting Info */
        .support-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .support-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .support-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
        }

        .support-item-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(31, 110, 63, 0.07);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .support-item-body h4 {
            font-size: 15.5px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .support-item-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* CTA Section */
        .cta-card {
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .cta-card-content h3 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .cta-card-content p {
            font-size: 15px;
            color: var(--text-on-dark-muted);
            max-width: 520px;
            line-height: 1.75;
            margin-bottom: 0;
        }

        .cta-card-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        /* Related Articles */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .related-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            text-align: left;
        }

        .related-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
            transform: translateY(-2px);
        }

        .related-card .related-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            display: block;
            margin-bottom: 10px;
        }

        .related-card h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .related-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .related-card a {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .related-card a:hover {
            color: var(--accent);
        }

        /* Sticky Bottom CTA */
        .sticky-bottom-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: #fff;
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
            z-index: 150;
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .sticky-bottom-cta .sticky-info {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
            flex: 1;
        }

        .sticky-bottom-cta .sticky-name {
            font-size: 14.5px;
            font-weight: 600;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .sticky-bottom-cta .sticky-desc {
            font-size: 12.5px;
            color: var(--text-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .sticky-bottom-cta .btn {
            flex-shrink: 0;
        }

        /* Footer */
        .footer {
            background-color: var(--dark-bg);
            color: var(--text-on-dark);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand p {
            color: var(--text-on-dark-muted);
            font-size: 14px;
            line-height: 1.75;
            margin-top: 12px;
            margin-bottom: 0;
            max-width: 280px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
        }

        .footer-logo .logo-icon {
            background-color: var(--primary);
            color: #fff;
            width: 34px;
            height: 34px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
        }

        .footer-col .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            color: var(--text-on-dark-muted);
            font-size: 14px;
            transition: color var(--transition);
            display: inline-block;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .num {
            font-family: var(--font-num);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 0;
            }
            .main-nav li a {
                padding: 8px 10px;
                font-size: 13.5px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .featured-case-inner {
                grid-template-columns: 1fr;
            }
            .featured-case-img {
                min-height: 240px;
                aspect-ratio: 16 / 8;
            }
            .featured-case-body {
                padding: 28px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: 68px;
            }
            :root {
                --section-pad: 40px;
                --section-pad-mobile: 32px;
            }
            .promo-bar {
                font-size: 11.5px;
                height: 32px;
                padding: 0 12px;
            }
            .main-nav-container {
                height: 60px;
            }
            .logo {
                font-size: 17px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .main-nav {
                display: none;
            }
            .nav-actions .nav-icon-btn {
                display: none;
            }
            .nav-actions .nav-cta {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .drawer-overlay {
                display: block;
                pointer-events: none;
            }
            .drawer-overlay.open {
                pointer-events: auto;
            }
            .category-header-title h1 {
                font-size: 26px;
            }
            .category-header {
                padding: 20px 0 12px;
            }
            .filter-bar {
                padding: 14px 16px;
                gap: 8px;
            }
            .filter-tag {
                padding: 5px 12px;
                font-size: 12px;
            }
            .case-card-body {
                padding: 16px 18px 18px;
            }
            .case-card-body h3 {
                font-size: 17px;
            }
            .case-card-body p {
                font-size: 13.5px;
            }
            .cta-card {
                padding: 28px 22px;
                flex-direction: column;
                text-align: left;
                align-items: flex-start;
            }
            .cta-card-content h3 {
                font-size: 21px;
            }
            .cta-card-actions {
                width: 100%;
                flex-direction: column;
            }
            .cta-card-actions .btn {
                width: 100%;
            }
            .sticky-bottom-cta {
                padding: 10px 16px;
                gap: 10px;
            }
            .sticky-bottom-cta .sticky-desc {
                display: none;
            }
            .sticky-bottom-cta .sticky-name {
                font-size: 13px;
            }
            .sticky-bottom-cta .btn {
                padding: 8px 16px;
                font-size: 13px;
            }
            .footer {
                padding: 36px 0 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                margin-bottom: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .featured-case-body {
                padding: 20px;
            }
            .featured-case-body h3 {
                font-size: 20px;
            }
            .featured-case-stats {
                gap: 18px;
            }
            .featured-stat .stat-num {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            :root {
                --section-pad: 32px;
                --section-pad-mobile: 28px;
            }
            .category-header-title h1 {
                font-size: 22px;
            }
            .category-header-title p {
                font-size: 14.5px;
            }
            .category-header-meta .meta-badge {
                font-size: 12px;
                padding: 6px 12px;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tag {
                padding: 4px 10px;
                font-size: 11.5px;
            }
            .case-card-footer {
                flex-direction: column;
                gap: 10px;
                align-items: flex-start;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
            .sticky-bottom-cta .sticky-name {
                font-size: 12px;
            }
            .sticky-bottom-cta .btn {
                padding: 7px 12px;
                font-size: 12px;
                white-space: nowrap;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1F6E3F;
            --primary-dark: #1D5C37;
            --primary-deeper: #154A2C;
            --accent: #E6493D;
            --accent-dark: #C93A2F;
            --dark-bg: #0F2A1A;
            --dark-bg-2: #13271A;
            --light-bg: #F5F6F1;
            --light-bg-2: #F7F5EF;
            --card-white: #FFFFFF;
            --border-light: #DDE5DD;
            --border-mid: #D6E1D6;
            --text-primary: #162318;
            --text-secondary: #506055;
            --text-muted: #7A8A7E;
            --text-on-dark: #FFFFFF;
            --text-on-dark-muted: #B8C8BC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(15, 42, 26, 0.10);
            --transition: 0.22s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-num: Georgia, 'Times New Roman', 'Songti SC', serif;
            --section-pad: 70px;
            --section-pad-mobile: 48px;
            --container-max: 1200px;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            box-sizing: border-box;
        }

        *,
        *::before,
        *::after {
            box-sizing: inherit;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15.5px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
            padding-bottom: 80px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), background var(--transition), border-color var(--transition);
        }

        a:hover {
            color: var(--accent);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.12s ease, box-shadow var(--transition);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-pad) 0;
        }

        .section-alt {
            background-color: var(--card-white);
        }

        .section-tight {
            padding: 48px 0;
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-header .eyebrow {
            display: inline-block;
            font-size: 12.5px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(31, 110, 63, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.75;
        }

        .section-header .header-note {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            text-align: center;
            transition: all 0.22s ease;
            white-space: nowrap;
            border: 2px solid transparent;
        }

        .btn-primary {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-primary:hover {
            background-color: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 58, 47, 0.28);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(201, 58, 47, 0.2);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-secondary:hover {
            background-color: rgba(31, 110, 63, 0.07);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }

        .btn-secondary:active {
            background-color: rgba(31, 110, 63, 0.12);
        }

        .btn-ghost-light {
            background-color: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.45);
        }

        .btn-ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13.5px;
            border-radius: var(--radius-sm);
        }

        .text-link {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .text-link:hover {
            color: var(--accent);
        }

        .num {
            font-family: var(--font-num);
            font-weight: 700;
            color: var(--accent);
        }

        /* Top Promotion Bar */
        .promo-bar {
            background-color: var(--primary-deeper);
            color: #fff;
            font-size: 12.5px;
            font-weight: 500;
            text-align: center;
            padding: 8px 16px;
            letter-spacing: 0.02em;
            min-height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            position: relative;
            z-index: 100;
        }

        .promo-bar i {
            color: #F6C444;
            font-size: 12px;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 90;
            background-color: #fff;
            box-shadow: 0 1px 0 var(--border-light), 0 4px 14px rgba(0,0,0,0.03);
        }

        .main-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 72px;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background-color: var(--primary);
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .main-nav li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
        }

        .main-nav li a:hover {
            color: var(--primary);
            background-color: rgba(31, 110, 63, 0.05);
        }

        .main-nav li a.active {
            color: var(--primary);
            font-weight: 700;
            background-color: rgba(31, 110, 63, 0.08);
        }

        .main-nav li a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            color: var(--text-secondary);
            font-size: 16px;
            border: 1px solid var(--border-light);
            background-color: #fff;
        }

        .nav-icon-btn:hover {
            color: var(--primary);
            border-color: var(--primary);
            background-color: rgba(31,110,63,0.04);
        }

        .nav-cta {
            padding: 9px 20px;
            font-size: 14px;
        }

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            color: var(--text-primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            background-color: #fff;
        }

        .menu-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: rgba(31,110,63,0.04);
        }

        /* Mobile Drawer */
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(15, 27, 18, 0.5);
            z-index: 150;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.25s ease;
        }

        .drawer-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -78%;
            width: 78%;
            max-width: 360px;
            height: 100%;
            background-color: #fff;
            z-index: 160;
            box-shadow: -8px 0 32px rgba(0,0,0,0.12);
            transition: right 0.28s ease;
            display: flex;
            flex-direction: column;
            padding: 20px;
        }

        .mobile-drawer.show {
            right: 0;
        }

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 16px;
        }

        .drawer-close {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 16px;
        }

        .drawer-menu {
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
            overflow-y: auto;
        }

        .drawer-menu li a {
            display: block;
            padding: 14px 6px;
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            border-bottom: 1px solid var(--border-light);
        }

        .drawer-menu li a:hover {
            color: var(--primary);
            background-color: rgba(31,110,63,0.04);
        }

        .drawer-menu li a.active {
            color: var(--primary);
        }

        .drawer-footer {
            padding-top: 16px;
            border-top: 1px solid var(--border-light);
        }

        .drawer-footer .btn {
            width: 100%;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background-color: var(--light-bg-2);
            border-bottom: 1px solid var(--border-light);
            padding: 16px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13.5px;
            color: var(--text-muted);
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .breadcrumb li a {
            color: var(--text-secondary);
        }

        .breadcrumb li a:hover {
            color: var(--primary);
        }

        .breadcrumb li::after {
            content: '/';
            font-size: 12px;
            color: var(--text-muted);
            margin-left: 4px;
        }

        .breadcrumb li:last-child::after {
            display: none;
        }

        .breadcrumb li:last-child {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category Page Header */
        .category-header {
            background-color: var(--card-white);
            border-bottom: 1px solid var(--border-light);
            padding: 42px 0 36px;
        }

        .category-header h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 0.01em;
        }

        .category-header .cat-desc {
            font-size: 16.5px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.8;
            margin: 0;
        }

        /* Card Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-mid);
        }

        .card-img {
            position: relative;
            padding-top: 66%;
            overflow: hidden;
            background-color: var(--light-bg);
        }

        .card-img img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .card:hover .card-img img {
            transform: scale(1.04);
        }

        .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-tag {
            display: inline-block;
            font-size: 11.5px;
            font-weight: 600;
            letter-spacing: 0.05em;
            color: var(--primary);
            background-color: rgba(31,110,63,0.08);
            padding: 4px 10px;
            border-radius: 16px;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            align-self: flex-start;
        }

        .card-link:hover {
            color: var(--accent);
        }

        /* Filter Visual Bar */
        .filter-bar {
            background-color: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
        }

        .filter-label {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-secondary);
            letter-spacing: 0.04em;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .filter-label i {
            color: var(--primary);
        }

        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background-color: var(--light-bg);
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: rgba(31,110,63,0.05);
        }

        .filter-tag.active {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* Topic Entry Cards */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            display: flex;
            align-items: flex-start;
            gap: 18px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .topic-icon {
            width: 46px;
            height: 46px;
            border-radius: 10px;
            background-color: rgba(31,110,63,0.08);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .topic-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text-primary);
        }

        .topic-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 12px;
            line-height: 1.65;
        }

        /* Tips */
        .tips-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .tip-item {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
        }

        .tip-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background-color: rgba(230,73,61,0.09);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .tip-item h4 {
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 4px;
            color: var(--text-primary);
        }

        .tip-item p {
            font-size: 13.5px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.65;
        }

        /* Support Note */
        .support-note {
            background-color: var(--light-bg-2);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 24px 28px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

        .support-note .note-icon {
            font-size: 24px;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 2px;
        }

        .support-note h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .support-note p {
            font-size: 14.5px;
            color: var(--text-secondary);
            margin: 0 0 8px;
            line-height: 1.7;
        }

        .support-note ul {
            margin: 0;
            padding-left: 20px;
        }

        .support-note ul li {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 4px;
        }

        /* Local CTA */
        .cta-box {
            background-color: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            color: #fff;
        }

        .cta-box h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 8px;
            color: #fff;
        }

        .cta-box p {
            font-size: 14.5px;
            color: var(--text-on-dark-muted);
            margin: 0;
            max-width: 520px;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Related Articles */
        .related-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .related-item {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .related-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .related-num {
            font-family: var(--font-num);
            font-size: 26px;
            font-weight: 700;
            color: rgba(31,110,63,0.2);
            flex-shrink: 0;
            width: 40px;
            text-align: center;
        }

        .related-item h4 {
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 4px;
            color: var(--text-primary);
        }

        .related-item p {
            font-size: 13.5px;
            color: var(--text-muted);
            margin: 0;
        }

        /* Footer */
        .footer {
            background-color: var(--dark-bg);
            color: #fff;
            padding: 56px 0 32px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 13.5px;
            color: var(--text-on-dark-muted);
            line-height: 1.75;
            max-width: 320px;
            margin: 0;
        }

        .footer-title {
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.04em;
            margin-bottom: 14px;
            color: #fff;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: var(--text-on-dark-muted);
            font-size: 13.5px;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            font-size: 12.5px;
            color: rgba(255,255,255,0.45);
        }

        /* Bottom Fixed Conversion Bar */
        .bottom-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 80;
            background-color: var(--dark-bg-2);
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 -6px 24px rgba(0,0,0,0.16);
        }

        .bottom-cta-bar .bar-info {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }

        .bar-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background-color: rgba(255,255,255,0.1);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .bar-text {
            font-size: 13.5px;
            color: #fff;
            font-weight: 600;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .bar-price {
            font-size: 12.5px;
            color: var(--text-on-dark-muted);
            margin-left: 4px;
            font-weight: 400;
        }

        .bottom-cta-bar .btn {
            flex-shrink: 0;
            padding: 9px 22px;
            font-size: 14px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tips-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 48px;
                --section-pad-mobile: 36px;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .section-tight {
                padding: 32px 0;
            }
            .main-nav {
                display: none;
            }
            .menu-toggle {
                display: inline-flex;
            }
            .nav-cta {
                display: none;
            }
            .main-bar {
                height: 62px;
                padding: 0 16px;
            }
            .category-header {
                padding: 30px 0 28px;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .tips-list {
                grid-template-columns: 1fr;
            }
            .related-list {
                grid-template-columns: 1fr;
            }
            .cta-box {
                padding: 28px 22px;
                flex-direction: column;
                align-items: flex-start;
            }
            .bottom-cta-bar {
                padding: 8px 12px;
            }
            .bar-text {
                font-size: 12.5px;
                max-width: 140px;
            }
            .bottom-cta-bar .btn {
                padding: 8px 16px;
                font-size: 13px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .filter-bar {
                padding: 14px 16px;
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-header h1 {
                font-size: 22px;
            }
            .category-header .cat-desc {
                font-size: 14.5px;
            }
            .section-header h2 {
                font-size: 21px;
            }
            .card-body {
                padding: 16px 18px 18px;
            }
            .card-body h3 {
                font-size: 17px;
            }
            .footer {
                padding: 40px 0 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 4px;
            }
            .topic-card {
                padding: 18px;
                flex-direction: column;
            }
            .bottom-cta-bar .bar-price {
                display: block;
                font-size: 11px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1F6E3F;
            --primary-dark: #1D5C37;
            --primary-deeper: #154A2C;
            --accent: #E6493D;
            --accent-dark: #C93A2F;
            --dark-bg: #0F2A1A;
            --dark-bg-2: #13271A;
            --light-bg: #F5F6F1;
            --light-bg-2: #F7F5EF;
            --card-white: #FFFFFF;
            --border-light: #DDE5DD;
            --border-mid: #D6E1D6;
            --text-primary: #162318;
            --text-secondary: #506055;
            --text-muted: #7A8A7E;
            --text-on-dark: #FFFFFF;
            --text-on-dark-muted: #B8C8BC;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(15, 42, 26, 0.10);
            --transition: 0.22s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-num: Georgia, 'Times New Roman', 'Songti SC', serif;
            --section-pad: 70px;
            --section-pad-mobile: 48px;
            --container-max: 1200px;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15.5px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 80px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), background var(--transition), border-color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.12s ease, box-shadow var(--transition);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section-alt {
            background-color: var(--card-white);
        }
        .section-tight {
            padding: 48px 0;
        }
        .section-header {
            margin-bottom: 36px;
        }
        .section-header .eyebrow {
            display: inline-block;
            font-size: 12.5px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(31, 110, 63, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.75;
        }
        .section-header .header-note {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 8px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            text-align: center;
            transition: all 0.22s ease;
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .btn-primary {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background-color: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 58, 47, 0.28);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(201, 58, 47, 0.2);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background-color: rgba(31, 110, 63, 0.07);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }
        .btn-secondary:active {
            background-color: rgba(31, 110, 63, 0.12);
        }
        .btn-ghost-light {
            background-color: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.45);
        }
        .btn-ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }
        .num {
            font-family: var(--font-num);
            font-feature-settings: "tnum";
        }

        /* Header & Nav */
        .promo-bar {
            background-color: var(--dark-bg);
            color: #fff;
            text-align: center;
            padding: 7px 16px;
            font-size: 12.5px;
            letter-spacing: 0.04em;
            line-height: 1.6;
            min-height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .promo-bar a {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .promo-bar a:hover {
            color: var(--text-on-dark-muted);
        }
        .main-header {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }
        .main-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 24px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 18px;
        }
        .brand-logo:hover {
            color: var(--primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 6px;
            flex-wrap: wrap;
        }
        .main-nav li a {
            display: inline-block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .main-nav li a:hover {
            color: var(--primary);
            background: rgba(31, 110, 63, 0.06);
        }
        .main-nav li a.active {
            color: var(--primary);
            background: rgba(31, 110, 63, 0.12);
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            color: var(--text-secondary);
            font-size: 17px;
            border: 1px solid var(--border-light);
            background: #fff;
            transition: all var(--transition);
        }
        .icon-btn:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(31, 110, 63, 0.04);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 14.5px;
            border: 2px solid var(--accent);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .header-cta:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(201, 58, 47, 0.25);
        }
        .drawer-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--text-primary);
            font-size: 20px;
            align-items: center;
            justify-content: center;
        }
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 42, 26, 0.5);
            z-index: 199;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        .drawer-overlay.is-open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 78%;
            max-width: 360px;
            height: 100vh;
            background: #fff;
            z-index: 200;
            display: flex;
            flex-direction: column;
            transition: right 0.32s ease;
            box-shadow: -12px 0 40px rgba(0, 0, 0, 0.12);
            overflow-y: auto;
        }
        .mobile-drawer.is-open {
            right: 0;
        }
        .drawer-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-light);
        }
        .drawer-head .drawer-title {
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .drawer-close {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            border: 1px solid var(--border-light);
            background: var(--light-bg);
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
        }
        .drawer-close:hover {
            background: var(--border-light);
            color: var(--text-primary);
        }
        .drawer-nav {
            list-style: none;
            margin: 16px 0;
            padding: 0 20px;
            flex: 1;
        }
        .drawer-nav li a {
            display: block;
            padding: 15px 16px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            border-radius: var(--radius-md);
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .drawer-nav li a:hover {
            background: rgba(31, 110, 63, 0.06);
            color: var(--primary);
        }
        .drawer-nav li a.active {
            background: rgba(31, 110, 63, 0.12);
            color: var(--primary);
        }
        .drawer-footer {
            padding: 18px 20px;
            border-top: 1px solid var(--border-light);
        }
        .drawer-footer .btn {
            width: 100%;
        }
        .drawer-footer .drawer-promo {
            font-size: 12.5px;
            color: var(--text-muted);
            margin-top: 10px;
            text-align: center;
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            padding: 20px 0 0;
        }
        .breadcrumb {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb li {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb li a {
            color: var(--text-secondary);
        }
        .breadcrumb li a:hover {
            color: var(--primary);
        }
        .breadcrumb li .sep {
            color: var(--border-mid);
            font-size: 12px;
        }
        .breadcrumb li:last-child {
            color: var(--text-primary);
            font-weight: 500;
        }

        /* Category Header */
        .category-head {
            padding: 28px 0 32px;
            background: var(--card-white);
            border-bottom: 1px solid var(--border-light);
        }
        .category-head .h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 8px 0 12px;
        }
        .category-head .lead {
            font-size: 16.5px;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.8;
        }

        /* Selection Cards */
        .select-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .select-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }
        .select-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-mid);
        }
        .select-card .card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--light-bg-2);
        }
        .select-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .select-card:hover .card-img img {
            transform: scale(1.03);
        }
        .select-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .select-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(31, 110, 63, 0.08);
            padding: 3px 12px;
            border-radius: 16px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .select-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .select-card p {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .select-card .card-link {
            font-size: 14.5px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .select-card .card-link:hover {
            color: var(--accent);
        }

        /* Filter Visual Bar */
        .filter-bar {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 28px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
        }
        .filter-bar .filter-label {
            font-weight: 700;
            font-size: 14.5px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .filter-bar .filter-label i {
            color: var(--primary);
            font-size: 16px;
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            background: var(--light-bg);
            border: 1px solid var(--border-light);
            border-radius: 24px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            cursor: default;
        }
        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(31, 110, 63, 0.05);
        }
        .filter-chip.active {
            background: rgba(31, 110, 63, 0.12);
            border-color: var(--primary);
            color: var(--primary);
            font-weight: 600;
        }
        .filter-chip i {
            font-size: 12px;
            opacity: 0.7;
        }

        /* Compare Section */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .compare-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .compare-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
        }
        .compare-card .compare-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .compare-card .compare-title i {
            color: var(--primary);
            font-size: 20px;
        }
        .compare-card ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .compare-card ul li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        .compare-card ul li:last-child {
            border-bottom: none;
        }
        .compare-card ul li i {
            color: var(--primary);
            font-size: 14px;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .compare-card ul li .highlight {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* Tips Section */
        .tips-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tip-item {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            display: flex;
            gap: 16px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .tip-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .tip-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }
        .tip-content h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .tip-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* Topic Entry */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .topic-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .topic-card .topic-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
        }
        .topic-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 4px 0 6px;
        }
        .topic-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0 0 12px;
        }
        .topic-card .topic-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topic-card .topic-link:hover {
            color: var(--accent);
        }

        /* Support Note */
        .note-block {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
        }
        .note-block .note-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(31, 110, 63, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
        }
        .note-block h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .note-block p {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 8px;
        }
        .note-block p:last-child {
            margin-bottom: 0;
        }

        /* Local CTA */
        .cta-block {
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
        }
        .cta-block .cta-text h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-block .cta-text p {
            color: var(--text-on-dark-muted);
            font-size: 15.5px;
            line-height: 1.7;
            margin: 0;
            max-width: 560px;
        }
        .cta-block .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* Related Articles */
        .related-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .related-card {
            background: var(--card-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .related-card .related-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--light-bg-2);
        }
        .related-card .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .related-card .related-body {
            padding: 20px 22px;
        }
        .related-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 12px;
        }
        .related-card .related-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-card .related-link:hover {
            color: var(--accent);
        }

        /* Footer */
        .footer {
            background: var(--dark-bg);
            color: #fff;
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 17px;
        }
        .footer-brand p {
            color: var(--text-on-dark-muted);
            font-size: 14px;
            line-height: 1.75;
            margin: 0;
        }
        .footer-col .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-on-dark-muted);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            padding: 18px 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-on-dark-muted);
        }

        /* Floating CTA Bar */
        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: #fff;
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -4px 20px rgba(15, 42, 26, 0.08);
            z-index: 150;
            padding: 10px 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .floating-cta .float-inner {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            padding: 0 24px;
        }
        .floating-cta .float-info {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .floating-cta .float-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .floating-cta .float-name {
            font-weight: 700;
            font-size: 15px;
            color: var(--text-primary);
        }
        .floating-cta .float-desc {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .select-grid,
            .tips-row,
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .compare-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .main-nav {
                gap: 2px;
            }
            .main-nav li a {
                padding: 10px 12px;
                font-size: 14px;
            }
            .header-cta {
                padding: 9px 16px;
                font-size: 13.5px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 48px;
                --section-pad-mobile: 36px;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .main-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .drawer-toggle {
                display: inline-flex;
            }
            .brand-logo {
                font-size: 18px;
            }
            .brand-logo .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            .select-grid,
            .tips-row,
            .topic-grid,
            .related-grid {
                grid-template-columns: 1fr;
            }
            .category-head .h1 {
                font-size: 28px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
                padding: 16px 18px;
            }
            .cta-block {
                padding: 32px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-block .cta-text h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .floating-cta .float-inner {
                flex-direction: row;
                align-items: center;
                gap: 12px;
                padding: 0 16px;
            }
            .floating-cta .float-desc {
                display: none;
            }
            .floating-cta .float-name {
                font-size: 14px;
            }
            .floating-cta .btn {
                padding: 9px 18px;
                font-size: 13.5px;
            }
            .promo-bar {
                font-size: 11.5px;
                padding: 6px 12px;
                min-height: 32px;
            }
            .note-block {
                flex-direction: column;
                padding: 22px 20px;
            }
            .compare-card {
                padding: 22px 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-head .h1 {
                font-size: 24px;
            }
            .category-head .lead {
                font-size: 14.5px;
            }
            .section-header h2 {
                font-size: 21px;
            }
            .select-card .card-body {
                padding: 16px 18px 18px;
            }
            .select-card h3 {
                font-size: 17px;
            }
            .tip-item {
                padding: 20px 18px;
                flex-direction: column;
                gap: 12px;
            }
            .topic-card {
                padding: 20px 16px;
            }
            .cta-block {
                padding: 24px 18px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 15px;
            }
        }