/* roulang page: index */
:root {
            --primary: #0E1420;
            --primary-2: #142238;
            --accent: #C9A227;
            --accent-2: #E2C878;
            --bg: #F5F1E8;
            --surface: #FFFFFF;
            --text: #1A1A1A;
            --muted: #6B7280;
            --danger: #B43A3A;
            --brand-gradient: linear-gradient(135deg, #0E1420 0%, #1B2A44 60%, #243B5E 100%);
            --radius-card: 22px;
            --radius-lg: 24px;
            --radius-sm: 12px;
            --shadow: 0 12px 30px rgba(10, 15, 25, 0.06);
            --shadow-hover: 0 18px 38px rgba(10, 15, 25, 0.11);
            --border-accent: 1px solid rgba(201, 162, 39, 0.18);
            --spacing-section: 88px;
            --spacing-section-mobile: 38px;
        }

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

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

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
            color: var(--primary);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: 0.02em;
        }

        h1 {
            font-size: clamp(32px, 5vw, 44px);
            line-height: 1.15;
            margin-bottom: 18px;
        }

        h2 {
            font-size: clamp(24px, 3.5vw, 32px);
            margin-bottom: 14px;
        }

        h3 {
            font-size: clamp(18px, 2.5vw, 22px);
            margin-bottom: 10px;
        }

        p {
            margin-bottom: 12px;
            color: var(--text);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        ul,
        ol {
            padding-left: 1.4rem;
            margin-bottom: 12px;
        }

        li {
            margin-bottom: 6px;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        .section-dark {
            background: var(--brand-gradient);
            color: #E9E4D8;
        }

        .section-dark h2,
        .section-dark h3 {
            color: #F5F1E8;
        }

        .section-dark p {
            color: #BFC7D2;
        }

        .section-alt {
            background: #F5F1E8;
        }

        .section-white {
            background: var(--surface);
        }

        /* Header / Navigation */
        .site-header {
            background: var(--primary);
            color: #E9E4D8;
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(10, 15, 25, 0.3);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .site-logo {
            font-family: "Noto Serif SC", serif;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--accent-2);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-logo i {
            font-size: 1.2rem;
            color: var(--accent);
        }

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

        .site-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
        }

        .site-nav a.nav-link {
            display: inline-block;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            color: #D6DCE4;
            text-decoration: none;
            border-radius: 8px;
            transition: color 0.25s ease, background 0.25s ease;
            position: relative;
            white-space: nowrap;
        }

        .site-nav a.nav-link:hover {
            color: var(--accent-2);
            background: rgba(201, 162, 39, 0.08);
        }

        .site-nav a.nav-link.active {
            color: var(--accent-2);
            font-weight: 600;
        }

        .site-nav a.nav-link.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-cta {
            background: var(--accent);
            color: var(--primary) !important;
            border-radius: 999px !important;
            padding: 10px 22px !important;
            font-weight: 600;
            font-size: 14px;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            margin-left: 8px;
            border: 1px solid var(--accent);
        }

        .nav-cta:hover {
            background: #D9AF45 !important;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(201, 162, 39, 0.25);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #D6DCE4;
            cursor: pointer;
            padding: 10px 12px;
            border-radius: 8px;
        }

        /* Hero Section */
        .hero-section {
            background: var(--brand-gradient);
            padding: 64px 0 72px;
            overflow: hidden;
            position: relative;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/eddbffe942f9d362.jpg') center center / cover no-repeat;
            opacity: 0.22;
            pointer-events: none;
        }

        .hero-section .container {
            position: relative;
            z-index: 1;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content h1 {
            color: #F5F1E8;
            font-size: clamp(32px, 5.5vw, 48px);
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }

        .hero-content h1 .gold-text {
            color: var(--accent-2);
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: #BFC7D2;
            max-width: 560px;
            margin-bottom: 28px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-block;
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 999px;
            cursor: pointer;
            transition: all 0.25s ease;
            text-decoration: none;
            text-align: center;
            line-height: 1.2;
            border: none;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            border: 1px solid var(--accent);
        }

        .btn-primary:hover {
            background: #D9AF45;
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(201, 162, 39, 0.3);
        }

        .btn-primary:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-primary:active {
            background: #A8861D;
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-secondary {
            background: transparent;
            color: var(--accent-2);
            border: 1px solid rgba(201, 162, 39, 0.6);
        }

        .btn-secondary:hover {
            background: rgba(201, 162, 39, 0.12);
            color: var(--accent-2);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(201, 162, 39, 0.18);
        }

        .btn-secondary:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-secondary:active {
            background: rgba(201, 162, 39, 0.2);
            transform: translateY(1px);
            box-shadow: none;
        }

        .hero-visual {
            background: rgba(10, 15, 25, 0.55);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid rgba(201, 162, 39, 0.25);
            box-shadow: 0 22px 44px rgba(10, 15, 25, 0.35);
            backdrop-filter: blur(4px);
        }

        .hero-visual img {
            width: 100%;
            height: auto;
            border-radius: 16px;
            margin-bottom: 20px;
        }

        .hero-stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
            margin-top: 32px;
            text-align: center;
        }

        .stat-badge {
            background: rgba(10, 15, 25, 0.6);
            border: 1px solid rgba(201, 162, 39, 0.3);
            border-radius: 14px;
            padding: 16px 12px;
            text-align: center;
            transition: border-color 0.25s ease, background 0.25s ease;
        }

        .stat-badge:hover {
            border-color: var(--accent);
            background: rgba(201, 162, 39, 0.1);
        }

        .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-2);
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.02em;
            display: block;
        }

        .stat-label {
            font-size: 13px;
            color: #8B98A8;
            margin-top: 4px;
            display: block;
        }

        /* Content Zone / Service Matrix */
        .zone-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 20px;
        }

        .zone-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: var(--border-accent);
            padding: 0;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

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

        .zone-card.large {
            grid-column: span 6;
        }

        .zone-card.medium {
            grid-column: span 4;
        }

        .zone-card.small {
            grid-column: span 3;
        }

        .zone-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            border-bottom: 1px solid rgba(201, 162, 39, 0.15);
        }

        .zone-card-body {
            padding: 20px 22px 22px;
            flex: 1;
        }

        .zone-card-body h3 {
            font-size: 18px;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .zone-card-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.65;
            margin-bottom: 14px;
        }

        .zone-card-link {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        .zone-card-link:hover {
            color: #A8861D;
        }

        /* Comparison Section */
        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .comparison-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            border: var(--border-accent);
            transition: all 0.3s ease;
        }

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

        .comparison-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
            color: var(--primary);
        }

        .comparison-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(201, 162, 39, 0.12);
            font-size: 14px;
            color: var(--text);
        }

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

        .comparison-item .label {
            color: var(--muted);
        }

        .comparison-item .value {
            font-weight: 600;
            color: var(--primary);
        }

        .comparison-item .value.gold {
            color: var(--accent);
            font-weight: 700;
        }

        /* Milestone / Timeline */
        .milestone-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .milestone-node {
            background: rgba(10, 15, 25, 0.45);
            border: 1px solid rgba(201, 162, 39, 0.28);
            border-radius: 18px;
            padding: 24px 20px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .milestone-node:hover {
            border-color: var(--accent);
            background: rgba(201, 162, 39, 0.1);
            transform: translateY(-3px);
        }

        .milestone-year {
            font-size: 22px;
            font-weight: 700;
            color: var(--accent-2);
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.03em;
        }

        .milestone-stat {
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            display: block;
            margin: 10px 0 6px;
        }

        .milestone-desc {
            font-size: 14px;
            color: #BFC7D2;
            line-height: 1.6;
        }

        /* Topic / Scenario Section */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .scenario-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: var(--border-accent);
            transition: all 0.3s ease;
        }

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

        .scenario-card img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            border-radius: 0;
        }

        .scenario-card-body {
            padding: 18px 20px 20px;
        }

        .scenario-card h3 {
            font-size: 16px;
            margin-bottom: 6px;
            color: var(--primary);
        }

        .scenario-card p {
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* CMS List Section */
        .cms-list-grid {
            display: grid;
            grid-template-columns: 1.5fr 0.6fr;
            gap: 30px;
        }

        .cms-left-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .cms-item-card {
            background: var(--surface);
            border-radius: 16px;
            padding: 22px 24px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(201, 162, 39, 0.14);
            transition: all 0.3s ease;
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

        .cms-item-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        .cms-item-card .cms-cover {
            flex-shrink: 0;
            width: 110px;
            height: 82px;
            border-radius: 10px;
            overflow: hidden;
            background: #E8E5DE;
        }

        .cms-item-card .cms-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 10px;
        }

        .cms-item-content h3 {
            font-size: 16px;
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .cms-item-content h3 a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        .cms-item-content h3 a:hover {
            color: var(--accent);
        }

        .cms-item-meta {
            font-size: 12px;
            color: var(--muted);
            margin-bottom: 6px;
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .cms-item-meta .tag {
            background: rgba(201, 162, 39, 0.15);
            color: #A8861D;
            padding: 2px 10px;
            border-radius: 999px;
            font-weight: 500;
            font-size: 12px;
        }

        .cms-item-excerpt {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .cms-right-sidebar {
            background: var(--primary);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            color: #D6DCE4;
            border: 1px solid rgba(201, 162, 39, 0.25);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 90px;
        }

        .cms-right-sidebar h3 {
            color: var(--accent-2);
            font-size: 17px;
            margin-bottom: 16px;
        }

        .cms-right-sidebar ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 0;
        }

        .cms-right-sidebar li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(201, 162, 39, 0.15);
            font-size: 13px;
            color: #BFC7D2;
            line-height: 1.5;
        }

        .cms-right-sidebar li:last-child {
            border-bottom: none;
        }

        .cms-empty {
            text-align: center;
            padding: 40px 20px;
            background: var(--surface);
            border-radius: var(--radius-card);
            color: var(--muted);
            font-size: 15px;
            border: 1px dashed rgba(201, 162, 39, 0.3);
        }

        /* Platform Guarantee */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .guarantee-item {
            background: var(--surface);
            border-radius: 18px;
            padding: 28px 20px;
            border: 1px solid rgba(201, 162, 39, 0.18);
            box-shadow: var(--shadow);
            text-align: center;
            transition: all 0.3s ease;
        }

        .guarantee-item:hover {
            border-color: var(--accent);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .guarantee-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--brand-gradient);
            color: var(--accent-2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin: 0 auto 14px;
            border: 1px solid rgba(201, 162, 39, 0.3);
        }

        .guarantee-item h3 {
            font-size: 16px;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .guarantee-item p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* Quick FAQ */
        .quick-faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

        .quick-faq-item {
            background: var(--surface);
            border-left: 3px solid var(--accent);
            border-radius: 12px;
            padding: 20px 22px;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
        }

        .quick-faq-item:hover {
            box-shadow: var(--shadow-hover);
            border-left-color: var(--accent-2);
        }

        .quick-faq-item h3 {
            font-size: 15px;
            margin-bottom: 6px;
            color: var(--primary);
        }

        .quick-faq-item p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        .quick-faq-item a {
            color: var(--accent);
            font-weight: 500;
            font-size: 13px;
        }

        /* FAQ Accordion */
        .faq-section .accordion {
            background: transparent !important;
            border: none !important;
        }

        .faq-section .accordion-item {
            background: var(--surface);
            border-radius: 14px !important;
            border: 1px solid rgba(201, 162, 39, 0.2);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-section .accordion-item:hover {
            border-color: var(--accent);
        }

        .faq-section .accordion-title {
            background: none !important;
            border: none !important;
            padding: 18px 22px !important;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary) !important;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: color 0.25s ease !important;
        }

        .faq-section .accordion-title:hover {
            color: var(--accent) !important;
        }

        .faq-section .accordion-title::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--accent);
            transition: transform 0.25s ease;
        }

        .faq-section .accordion-item.is-active .accordion-title::after {
            content: '−';
            transform: rotate(180deg);
        }

        .faq-section .accordion-item.is-active .accordion-title {
            color: var(--accent) !important;
        }

        .faq-section .accordion-content {
            background: #FAF8F3 !important;
            border: none !important;
            padding: 16px 22px 20px !important;
            font-size: 14px;
            color: var(--muted) !important;
            line-height: 1.7;
        }

        /* Conversion Form */
        .subscribe-section {
            background: var(--brand-gradient);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(201, 162, 39, 0.25);
        }

        .subscribe-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/b350434811a6509f.jpg') center center / cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }

        .subscribe-section .container,
        .subscribe-section form {
            position: relative;
            z-index: 1;
        }

        .subscribe-section h2 {
            color: #F5F1E8;
            margin-bottom: 12px;
        }

        .subscribe-section p {
            color: #BFC7D2;
            font-size: 15px;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 24px;
        }

        .form-group {
            flex: 1;
            min-width: 180px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            color: #D6DCE4;
            margin-bottom: 6px;
            font-weight: 500;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 13px 16px;
            background: rgba(10, 15, 25, 0.6);
            border: 1px solid rgba(201, 162, 39, 0.4);
            border-radius: 10px;
            color: #F5F1E8;
            font-size: 15px;
            transition: all 0.25s ease;
        }

        .form-group input::placeholder {
            color: #8B98A8;
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.25);
            background: rgba(10, 15, 25, 0.8);
        }

        .form-group select {
            appearance: none;
            -webkit-appearance: none;
            cursor: pointer;
        }

        .form-submit {
            align-self: flex-end;
        }

        .form-submit .btn {
            padding: 14px 32px;
            font-size: 15px;
            font-weight: 600;
            background: var(--accent);
            color: var(--primary);
            border: 1px solid var(--accent);
            border-radius: 999px;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .form-submit .btn:hover {
            background: #D9AF45;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(201, 162, 39, 0.3);
        }

        /* User Feedback / Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            padding: 24px 22px;
            box-shadow: var(--shadow);
            border: var(--border-accent);
            transition: all 0.3s ease;
        }

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

        .review-stars {
            color: var(--accent);
            font-size: 16px;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }

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

        .review-meta {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
        }

        .review-meta span {
            color: var(--muted);
            font-weight: 400;
            margin-left: 8px;
        }

        /* Compliance Section */
        .compliance-box {
            background: var(--surface);
            border-radius: var(--radius-card);
            padding: 36px 30px;
            border: 1px solid rgba(201, 162, 39, 0.22);
            box-shadow: var(--shadow);
            display: flex;
            gap: 24px;
            align-items: flex-start;
        }

        .compliance-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--brand-gradient);
            color: var(--accent-2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            border: 1px solid rgba(201, 162, 39, 0.3);
        }

        .compliance-text h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--primary);
        }

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

        /* Section Header */
        .section-head {
            margin-bottom: 38px;
        }

        .section-head .section-tag {
            display: inline-block;
            background: rgba(201, 162, 39, 0.15);
            color: #A8861D;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.05em;
        }

        .section-head h2 {
            margin-bottom: 12px;
            font-size: clamp(24px, 3.8vw, 32px);
        }

        .section-head p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 680px;
        }

        .section-dark .section-tag {
            background: rgba(201, 162, 39, 0.2);
            color: var(--accent-2);
        }

        .section-dark .section-head p {
            color: #BFC7D2;
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: #D6DCE4;
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            color: var(--accent-2);
            font-size: 20px;
            margin-bottom: 12px;
            font-family: "Noto Serif SC", serif;
        }

        .footer-brand p {
            color: #8B98A8;
            font-size: 14px;
            line-height: 1.7;
        }

        .footer-col h4 {
            color: #E9E4D8;
            font-size: 15px;
            margin-bottom: 14px;
            font-weight: 600;
        }

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

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

        .footer-col ul li a {
            color: #8B98A8;
            font-size: 14px;
            text-decoration: none;
            transition: color 0.25s ease;
        }

        .footer-col ul li a:hover {
            color: var(--accent-2);
        }

        .footer-col form {
            display: flex;
            gap: 8px;
            margin-top: 6px;
        }

        .footer-col form input {
            flex: 1;
            padding: 11px 14px;
            background: rgba(10, 15, 25, 0.7);
            border: 1px solid rgba(201, 162, 39, 0.35);
            border-radius: 8px;
            color: #E9E4D8;
            font-size: 13px;
            transition: all 0.25s ease;
        }

        .footer-col form input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.2);
        }

        .footer-col form button {
            padding: 11px 18px;
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 13px;
            cursor: pointer;
            transition: background 0.25s ease;
        }

        .footer-col form button:hover {
            background: #D9AF45;
        }

        .footer-bottom {
            border-top: 1px solid rgba(201, 162, 39, 0.18);
            padding-top: 22px;
            text-align: center;
        }

        .footer-bottom p {
            color: #6B7280;
            font-size: 13px;
            margin-bottom: 0;
            line-height: 1.6;
        }

        .footer-bottom p a {
            color: #8B98A8;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            :root {
                --spacing-section: 64px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .hero-visual {
                max-width: 540px;
            }

            .hero-stats-row {
                grid-template-columns: repeat(2, 1fr);
            }

            .zone-card.large {
                grid-column: span 6;
            }

            .zone-card.medium {
                grid-column: span 6;
            }

            .zone-card.small {
                grid-column: span 6;
            }

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

            .milestone-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .cms-list-grid {
                grid-template-columns: 1fr;
            }

            .cms-right-sidebar {
                position: static;
            }

            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }

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

            .site-header .container {
                height: 62px;
            }

            .site-nav {
                display: none;
                position: absolute;
                top: 62px;
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                padding: 16px 20px 20px;
                gap: 4px;
                box-shadow: 0 8px 24px rgba(10, 15, 25, 0.4);
                border-top: 1px solid rgba(201, 162, 39, 0.15);
            }

            .site-nav.open {
                display: flex;
            }

            .site-nav a.nav-link {
                padding: 12px 14px;
                width: 100%;
            }

            .nav-toggle {
                display: block;
            }

            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
                width: 100%;
            }

            .hero-section {
                padding: 44px 0 56px;
            }

            .hero-content h1 {
                font-size: clamp(28px, 7vw, 36px);
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .hero-stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }

            .stat-badge {
                padding: 12px 8px;
            }

            .stat-number {
                font-size: 22px;
            }

            .zone-card.large,
            .zone-card.medium,
            .zone-card.small {
                grid-column: span 12;
            }

            .zone-card img {
                height: 180px;
            }

            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .milestone-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .guarantee-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .quick-faq-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .reviews-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .subscribe-section {
                padding: 32px 24px;
            }

            .subscribe-form {
                flex-direction: column;
                gap: 14px;
            }

            .form-submit {
                width: 100%;
            }

            .form-submit .btn {
                width: 100%;
            }

            .compliance-box {
                flex-direction: column;
                gap: 16px;
                padding: 26px 22px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-col form {
                flex-direction: column;
            }

            .section-head {
                margin-bottom: 26px;
            }

            .cms-item-card {
                flex-direction: column;
                gap: 14px;
                padding: 18px;
            }

            .cms-item-card .cms-cover {
                width: 100%;
                height: 160px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .site-logo {
                font-size: 1.1rem;
                letter-spacing: 0.02em;
            }

            .hero-header {
                padding: 32px 0 40px;
            }

            h1 {
                font-size: 26px;
            }

            h2 {
                font-size: 22px;
            }

            .btn {
                padding: 12px 22px;
                font-size: 14px;
                width: 100%;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
            }

            .hero-cta-group {
                flex-direction: column;
                gap: 12px;
            }

            .stat-number {
                font-size: 20px;
            }

            .stat-label {
                font-size: 11px;
            }

            .zone-card img,
            .scenario-card img {
                height: 160px;
            }

            .comparison-card {
                padding: 20px 16px;
            }

            .milestone-stat {
                font-size: 26px;
            }

            .guarantee-icon {
                width: 44px;
                height: 44px;
                font-size: 18px;
            }

            .faq-section .accordion-title {
                font-size: 14px;
                padding: 14px 16px !important;
            }

            .faq-section .accordion-content {
                padding: 12px 16px 16px !important;
                font-size: 13px;
            }

            .review-card {
                padding: 20px 16px;
            }

            .subscribe-section h2 {
                font-size: 22px;
            }

            .footer-brand h3 {
                font-size: 17px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0E1420;
            --primary-2: #142238;
            --accent: #C9A227;
            --accent-2: #E2C878;
            --bg: #F5F1E8;
            --surface: #FFFFFF;
            --text: #1A1A1A;
            --muted: #6B7280;
            --danger: #B43A3A;
            --brand-gradient: linear-gradient(135deg, #0E1420 0%, #1B2A44 60%, #243B5E 100%);
            --radius-card: 22px;
            --radius-lg: 24px;
            --radius-sm: 12px;
            --shadow: 0 12px 30px rgba(10, 15, 25, 0.06);
            --shadow-hover: 0 18px 38px rgba(10, 15, 25, 0.11);
            --border-accent: 1px solid rgba(201, 162, 39, 0.18);
            --spacing-section: 64px;
            --spacing-section-mobile: 38px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-dark {
            background: var(--brand-gradient);
            color: #E9E4D8;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #F5F1E8;
        }
        .section-dark p {
            color: #BFC7D2;
        }
        .section-alt {
            background: #F5F1E8;
        }
        .section-white {
            background: var(--surface);
        }
        /* Header / Navigation */
        .site-header {
            background: var(--primary);
            color: #E9E4D8;
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(10, 15, 25, 0.3);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }
        .site-logo {
            font-family: "Noto Serif SC", serif;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--accent-2);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-logo i {
            font-size: 1.2rem;
            color: var(--accent);
        }
        .site-logo:hover {
            color: var(--accent);
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
        }
        .site-nav a.nav-link {
            display: inline-block;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            color: #D6DCE4;
            text-decoration: none;
            border-radius: 8px;
            transition: color 0.25s ease, background 0.25s ease;
            position: relative;
            white-space: nowrap;
        }
        .site-nav a.nav-link:hover {
            color: var(--accent-2);
            background: rgba(201, 162, 39, 0.08);
        }
        .site-nav a.nav-link.active {
            color: var(--accent-2);
            font-weight: 600;
        }
        .site-nav a.nav-link.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--accent);
            color: var(--primary) !important;
            border-radius: 999px !important;
            padding: 10px 22px !important;
            font-weight: 600;
            font-size: 14px;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            margin-left: 8px;
            border: 1px solid var(--accent);
        }
        .nav-cta:hover {
            background: #D9AF45 !important;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(201, 162, 39, 0.25);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #D6DCE4;
            cursor: pointer;
            padding: 10px 12px;
            border-radius: 8px;
        }
        /* Article Header */
        .article-header {
            background: var(--brand-gradient);
            padding: 48px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .article-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/eddbffe942f9d362.jpg') center center / cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }
        .article-header .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #BFC7D2;
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: #D6DCE4;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--accent-2);
        }
        .breadcrumb .separator {
            color: var(--accent);
        }
        .article-header-content {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 32px;
            align-items: center;
        }
        .article-header-text h1 {
            font-family: "Noto Serif SC", serif;
            font-size: clamp(26px, 4vw, 38px);
            line-height: 1.25;
            color: #F5F1E8;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .article-header-text .article-summary {
            font-size: 16px;
            color: #BFC7D2;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            font-size: 13px;
            color: #D6DCE4;
            align-items: center;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            color: var(--accent);
        }
        .article-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid rgba(201, 162, 39, 0.25);
        }
        .article-cover img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        /* Article Body */
        .article-body-wrap {
            max-width: 720px;
            margin: 0 auto;
            padding: 48px 24px;
        }
        .article-body {
            font-size: 16px;
            line-height: 1.85;
            color: #2A2A2A;
        }
        .article-body h2 {
            font-family: "Noto Serif SC", serif;
            font-size: 24px;
            font-weight: 700;
            margin: 32px 0 16px;
            color: var(--primary);
            border-left: 4px solid var(--accent);
            padding-left: 14px;
        }
        .article-body h3 {
            font-family: "Noto Serif SC", serif;
            font-size: 20px;
            font-weight: 600;
            margin: 24px 0 12px;
            color: var(--primary-2);
        }
        .article-body p {
            margin-bottom: 16px;
        }
        .article-body ul,
        .article-body ol {
            margin: 16px 0 16px 24px;
            padding-left: 16px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body blockquote {
            margin: 24px 0;
            padding: 16px 20px;
            background: #F5F1E8;
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: #4A4A4A;
            font-style: italic;
        }
        .article-body img {
            margin: 24px 0;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow);
        }
        /* Related Articles */
        .related-section {
            background: var(--surface);
            padding: 56px 0;
        }
        .related-section h2 {
            font-family: "Noto Serif SC", serif;
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 24px;
            font-weight: 700;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--surface);
            border: var(--border-accent);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .related-card img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin: 14px 16px 8px;
            line-height: 1.4;
        }
        .related-card h3 a {
            color: inherit;
        }
        .related-card p {
            font-size: 13px;
            color: var(--muted);
            margin: 0 16px 16px;
            line-height: 1.5;
        }
        /* Action Buttons */
        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            text-align: center;
            transition: background 0.3s ease, color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            cursor: pointer;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: #D9AF45;
            border-color: #D9AF45;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(201, 162, 39, 0.3);
            color: var(--primary);
        }
        .btn-outline {
            background: transparent;
            color: var(--accent);
            border-color: var(--accent);
        }
        .btn-outline:hover {
            background: rgba(201, 162, 39, 0.08);
            color: var(--accent-2);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }
        /* Subscribe Card */
        .subscribe-card {
            background: var(--brand-gradient);
            border-radius: var(--radius-lg);
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
            box-shadow: var(--shadow-hover);
            border: 1px solid rgba(201, 162, 39, 0.25);
        }
        .subscribe-card h3 {
            font-family: "Noto Serif SC", serif;
            font-size: 24px;
            color: #F5F1E8;
            margin-bottom: 12px;
        }
        .subscribe-card p {
            color: #BFC7D2;
            margin-bottom: 0;
            font-size: 15px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .subscribe-form input[type="email"],
        .subscribe-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border-radius: 8px;
            border: 1px solid rgba(201, 162, 39, 0.4);
            background: rgba(14, 20, 32, 0.6);
            color: #F5F1E8;
            font-size: 14px;
            outline: none;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .subscribe-form input::placeholder {
            color: #BFC7D2;
            opacity: 0.7;
        }
        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.25);
        }
        .subscribe-form button {
            background: var(--accent);
            color: var(--primary);
            border: none;
            padding: 14px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: background 0.3s ease, transform 0.2s ease;
        }
        .subscribe-form button:hover {
            background: #D9AF45;
            transform: translateY(-1px);
        }
        /* Compliance / Disclaimer */
        .compliance-box {
            background: #F5F1E8;
            border-left: 6px solid var(--accent);
            padding: 24px 28px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .compliance-box i {
            font-size: 28px;
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 4px;
        }
        .compliance-box h3 {
            font-size: 18px;
            color: var(--primary);
            margin-bottom: 8px;
            font-weight: 600;
        }
        .compliance-box p {
            color: var(--muted);
            font-size: 14px;
            margin-bottom: 0;
            line-height: 1.7;
        }
        /* Comments Placeholder */
        .comments-placeholder {
            background: var(--surface);
            border: 1px dashed rgba(201, 162, 39, 0.5);
            border-radius: var(--radius-card);
            padding: 36px;
            text-align: center;
        }
        .comments-placeholder i {
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .comments-placeholder h3 {
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .comments-placeholder p {
            color: var(--muted);
            font-size: 14px;
            margin-bottom: 0;
        }
        /* Footer */
        .site-footer {
            background: var(--primary);
            color: #BFC7D2;
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .site-footer .container {
            max-width: 1200px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-family: "Noto Serif SC", serif;
            font-size: 22px;
            color: var(--accent-2);
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            color: #BFC7D2;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 16px;
            color: #F5F1E8;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: #BFC7D2;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.25s ease;
        }
        .footer-col ul li a:hover {
            color: var(--accent-2);
        }
        .footer-col form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-col form input {
            flex: 1;
            min-width: 160px;
            padding: 10px 14px;
            border-radius: 6px;
            border: 1px solid rgba(201, 162, 39, 0.4);
            background: rgba(14, 20, 32, 0.5);
            color: #F5F1E8;
            font-size: 13px;
            outline: none;
        }
        .footer-col form input::placeholder {
            color: #BFC7D2;
            opacity: 0.7;
        }
        .footer-col form button {
            background: var(--accent);
            color: var(--primary);
            border: none;
            padding: 10px 18px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .footer-col form button:hover {
            background: #D9AF45;
        }
        .footer-bottom {
            border-top: 1px solid rgba(201, 162, 39, 0.15);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #BFC7D2;
        }
        .footer-bottom a {
            color: #BFC7D2;
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--accent-2);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .article-header-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .article-cover img {
                height: auto;
                max-height: 320px;
            }
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .site-header .container {
                height: 60px;
            }
            .site-nav {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                gap: 4px;
                box-shadow: 0 8px 20px rgba(0,0,0,0.3);
            }
            .site-nav.open {
                display: flex;
            }
            .site-nav a.nav-link {
                padding: 12px 16px;
                border-radius: 8px;
            }
            .nav-cta {
                margin-left: 0;
                text-align: center;
            }
            .nav-toggle {
                display: block;
            }
            .article-header {
                padding: 32px 0 40px;
            }
            .article-header-content {
                grid-template-columns: 1fr;
            }
            .article-cover img {
                height: 200px;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .subscribe-card {
                grid-template-columns: 1fr;
                padding: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .article-header-text h1 {
                font-size: 24px;
            }
            .article-meta {
                gap: 10px 16px;
                font-size: 12px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-body-wrap {
                padding: 24px 16px;
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 14px;
            }
        }
        .not-found-text {
            text-align: center;
            padding: 48px 24px;
            background: var(--surface);
            border-radius: var(--radius-card);
            border: var(--border-accent);
            box-shadow: var(--shadow);
        }
        .not-found-text i {
            font-size: 40px;
            color: var(--accent);
            margin-bottom: 16px;
        }
        .not-found-text h2 {
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .not-found-text p {
            color: var(--muted);
            margin-bottom: 24px;
        }

/* roulang page: category1 */
:root {
            --primary: #0E1420;
            --primary-2: #142238;
            --accent: #C9A227;
            --accent-2: #E2C878;
            --bg: #F5F1E8;
            --surface: #FFFFFF;
            --text: #1A1A1A;
            --muted: #6B7280;
            --danger: #B43A3A;
            --brand-gradient: linear-gradient(135deg, #0E1420 0%, #1B2A44 60%, #243B5E 100%);
            --radius-card: 22px;
            --radius-lg: 24px;
            --radius-sm: 12px;
            --shadow: 0 12px 30px rgba(10, 15, 25, 0.06);
            --shadow-hover: 0 18px 38px rgba(10, 15, 25, 0.11);
            --border-accent: 1px solid rgba(201, 162, 39, 0.18);
            --spacing-section: 72px;
            --spacing-section-mobile: 36px;
        }

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

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        .section-dark {
            background: var(--brand-gradient);
            color: #E9E4D8;
        }

        .section-dark h2,
        .section-dark h3 {
            color: #F5F1E8;
        }

        .section-dark p {
            color: #BFC7D2;
        }

        .section-alt {
            background: #F5F1E8;
        }

        .section-white {
            background: var(--surface);
        }

        /* Header / Navigation */
        .site-header {
            background: var(--primary);
            color: #E9E4D8;
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(10, 15, 25, 0.3);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .site-logo {
            font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-2);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-logo i {
            font-size: 1.2rem;
            color: var(--accent);
        }

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

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

        .site-nav a.nav-link {
            display: inline-block;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            color: #D6DCE4;
            text-decoration: none;
            border-radius: 8px;
            transition: color 0.25s ease, background 0.25s ease;
            position: relative;
            white-space: nowrap;
        }

        .site-nav a.nav-link:hover {
            color: var(--accent-2);
            background: rgba(201, 162, 39, 0.08);
        }

        .site-nav a.nav-link.active {
            color: var(--accent-2);
            font-weight: 600;
        }

        .site-nav a.nav-link.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-cta {
            background: var(--accent);
            color: var(--primary) !important;
            border-radius: 999px !important;
            padding: 10px 22px !important;
            font-weight: 600;
            font-size: 14px;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            margin-left: 8px;
            border: 1px solid var(--accent);
        }

        .nav-cta:hover {
            background: #D9AF45 !important;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(201, 162, 39, 0.25);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #D6DCE4;
            cursor: pointer;
            padding: 10px 12px;
            border-radius: 8px;
        }

        /* Category Header / Breadcrumb */
        .category-header {
            background: var(--brand-gradient);
            padding: 42px 0 36px;
            position: relative;
            overflow: hidden;
            min-height: 160px;
            display: flex;
            align-items: center;
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/ccef5d4f53c163d1.webp') center center / cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }

        .category-header .container {
            position: relative;
            z-index: 1;
            width: 100%;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #9CA8BC;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: #C5CDD8;
            text-decoration: none;
            transition: color 0.25s ease;
        }

        .breadcrumb a:hover {
            color: var(--accent-2);
        }

        .breadcrumb .separator {
            color: #5A6A82;
        }

        .breadcrumb .current {
            color: var(--accent-2);
            font-weight: 500;
        }

        .category-header h1 {
            color: #F5F1E8;
            font-size: clamp(28px, 4vw, 38px);
            line-height: 1.2;
            font-weight: 700;
            margin: 0 0 6px;
            font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
        }

        .category-header .header-sub {
            color: #BFC7D2;
            font-size: 15px;
            margin: 0;
            max-width: 560px;
            line-height: 1.55;
        }

        /* Filter Labels */
        .filter-bar {
            padding: 28px 0 12px;
            background: var(--surface);
        }

        .filter-bar .container {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .filter-label {
            font-size: 14px;
            color: var(--muted);
            font-weight: 500;
            margin-right: 6px;
        }

        .filter-tag {
            display: inline-block;
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background: #F0EDE6;
            color: #374151;
            border: 1px solid transparent;
            cursor: default;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--accent);
            background: #FDF8EC;
            color: var(--primary);
        }

        .filter-tag.active {
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            border-color: var(--accent);
        }

        /* Category Card Grid */
        .category-card-list {
            padding: var(--spacing-section) 0;
            background: var(--bg);
        }

        .section-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 36px;
            gap: 20px;
            flex-wrap: wrap;
        }

        .section-heading h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            line-height: 1.25;
            margin: 0;
            color: var(--text);
            font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
        }

        .section-heading .section-heading-sub {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            max-width: 420px;
            line-height: 1.55;
        }

        .section-heading a.more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            text-decoration: none;
            padding: 10px 20px;
            border: 1px solid var(--accent);
            border-radius: 999px;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .section-heading a.more-link:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(201, 162, 39, 0.25);
        }

        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }

        .video-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: var(--border-accent);
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            position: relative;
        }

        .video-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 162, 39, 0.45);
        }

        .video-card .card-thumb {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .video-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            transition: transform 0.45s ease;
        }

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

        .video-card .card-thumb .badge-duration {
            position: absolute;
            right: 12px;
            bottom: 10px;
            background: rgba(14, 20, 32, 0.82);
            color: #E9E4D8;
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 6px;
            letter-spacing: 0.03em;
        }

        .video-card .card-body {
            padding: 20px 20px 22px;
        }

        .video-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.4;
            font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
        }

        .video-card .card-summary {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
            margin: 0 0 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .video-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: #9CA3AF;
        }

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

        .video-card .card-meta .meta-tag {
            background: rgba(201, 162, 39, 0.12);
            color: #8C6D1A;
            padding: 3px 10px;
            border-radius: 999px;
            font-weight: 500;
            font-size: 11px;
            letter-spacing: 0.02em;
        }

        /* Data Metrics */
        .metrics-section {
            padding: var(--spacing-section) 0;
            background: var(--surface);
        }

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

        .metric-item {
            text-align: center;
            padding: 28px 18px;
            border-radius: var(--radius-card);
            background: var(--bg);
            border: var(--border-accent);
            transition: all 0.3s ease;
        }

        .metric-item:hover {
            border-color: rgba(201, 162, 39, 0.45);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

        .metric-item .metric-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }

        .metric-item .metric-number .accent {
            color: var(--accent);
        }

        .metric-item .metric-label {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            line-height: 1.5;
        }

        /* Topic Cards */
        .topic-entry {
            padding: var(--spacing-section) 0;
            background: var(--bg);
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: var(--border-accent);
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            position: relative;
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 162, 39, 0.45);
        }

        .topic-card .topic-thumb {
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .topic-card .topic-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            transition: transform 0.45s ease;
        }

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

        .topic-card .topic-body {
            padding: 20px 20px 22px;
        }

        .topic-card .topic-tag {
            display: inline-block;
            background: rgba(201, 162, 39, 0.12);
            color: #8C6D1A;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 10px;
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.35;
            font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
        }

        .topic-card p {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Review Summary */
        .review-summary {
            padding: var(--spacing-section) 0;
            background: var(--surface);
        }

        .review-grid {
            display: grid;
            grid-template-columns: 1fr 1.4fr;
            gap: 40px;
            align-items: center;
        }

        .review-score-panel {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            text-align: center;
            border: var(--border-accent);
        }

        .review-score-panel .score-big {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }

        .review-score-panel .score-stars {
            font-size: 20px;
            color: var(--accent);
            margin-bottom: 10px;
            letter-spacing: 3px;
        }

        .review-score-panel .score-label {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
        }

        .review-comments {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .review-comment {
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 18px 20px;
            border-left: 3px solid var(--accent);
        }

        .review-comment .comment-stars {
            font-size: 13px;
            color: var(--accent);
            margin-bottom: 6px;
            letter-spacing: 2px;
        }

        .review-comment p {
            font-size: 14px;
            color: var(--text);
            margin: 0;
            line-height: 1.6;
        }

        .review-comment .comment-source {
            display: block;
            font-size: 12px;
            color: var(--muted);
            margin-top: 6px;
            font-style: italic;
        }

        /* FAQ */
        .faq-section {
            padding: var(--spacing-section) 0;
            background: var(--bg);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            margin-bottom: 12px;
            border-bottom: 1px solid rgba(201, 162, 39, 0.2);
            transition: all 0.3s ease;
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 6px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            transition: color 0.3s ease;
            user-select: none;
            border: none;
            background: none;
            width: 100%;
            text-align: left;
            gap: 12px;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--accent);
            transition: transform 0.3s ease;
        }

        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 6px;
        }

        .faq-answer-inner {
            padding: 4px 0 18px;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.7;
        }

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

        /* Subscribe / CTA */
        .subscribe-section {
            padding: var(--spacing-section) 0;
            background: var(--surface);
        }

        .subscribe-panel {
            background: var(--brand-gradient);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 36px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .subscribe-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/96f9c5b4cc0a77e0.webp') center center / cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }

        .subscribe-panel>* {
            position: relative;
            z-index: 1;
        }

        .subscribe-panel h2 {
            color: #F5F1E8;
            font-size: clamp(22px, 2.8vw, 30px);
            font-weight: 700;
            margin: 0 0 8px;
            font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
        }

        .subscribe-panel .subscribe-desc {
            color: #BFC7D2;
            font-size: 15px;
            margin: 0 0 6px;
            line-height: 1.6;
        }

        .subscribe-panel .compliance-line {
            color: #8E9AAB;
            font-size: 12px;
            margin: 0;
            line-height: 1.5;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 180px;
            padding: 12px 18px;
            border-radius: 10px;
            border: 1px solid rgba(201, 162, 39, 0.45);
            background: rgba(255, 255, 255, 0.06);
            color: #F5F1E8;
            font-size: 14px;
            outline: none;
            transition: all 0.3s ease;
        }

        .subscribe-form input::placeholder {
            color: #8E9AAB;
        }

        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.22);
            background: rgba(255, 255, 255, 0.09);
        }

        .subscribe-form button {
            padding: 12px 28px;
            border-radius: 999px;
            border: 1px solid var(--accent);
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            background: #D9AF45;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(201, 162, 39, 0.3);
        }

        .subscribe-form button:focus {
            outline: 2px solid var(--accent-2);
            outline-offset: 2px;
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: #D6DCE4;
            padding: 64px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand h3 {
            color: var(--accent-2);
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 14px;
            font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
        }

        .footer-brand p {
            color: #9CA8BC;
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
            max-width: 360px;
        }

        .footer-col h4 {
            color: #E9E4D8;
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 14px;
            letter-spacing: 0.04em;
        }

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

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

        .footer-col ul li a {
            color: #9CA8BC;
            font-size: 14px;
            text-decoration: none;
            transition: color 0.25s ease;
        }

        .footer-col ul li a:hover {
            color: var(--accent-2);
        }

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

        .footer-col form input {
            padding: 10px 14px;
            border-radius: 8px;
            border: 1px solid rgba(201, 162, 39, 0.3);
            background: rgba(255, 255, 255, 0.05);
            color: #E9E4D8;
            font-size: 13px;
            outline: none;
            transition: all 0.3s ease;
        }

        .footer-col form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.2);
        }

        .footer-col form button {
            padding: 10px 16px;
            border-radius: 8px;
            border: 1px solid var(--accent);
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            font-size: 13px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .footer-col form button:hover {
            background: #D9AF45;
            transform: translateY(-1px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(201, 162, 39, 0.2);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            margin: 0;
            font-size: 12px;
            color: #7A8798;
        }

        .footer-bottom a {
            color: #9CA8BC;
            text-decoration: none;
            font-size: 12px;
            transition: color 0.25s ease;
        }

        .footer-bottom a:hover {
            color: var(--accent-2);
        }

        /* Section Title Only */
        .section-title-only {
            background: var(--surface);
            text-align: center;
            padding: 28px 0 8px;
        }

        .section-title-only h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--text);
            margin: 0;
            font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
        }

        .section-title-only .title-sub {
            color: var(--muted);
            font-size: 15px;
            margin: 8px 0 0;
        }

        /* Responsive */
        @media screen and (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

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

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

            .subscribe-panel {
                grid-template-columns: 1fr;
                gap: 22px;
                padding: 36px 28px;
            }
        }

        @media screen and (max-width: 768px) {
            .site-header .container {
                height: 62px;
                padding: 0 18px;
            }

            .site-logo {
                font-size: 1.1rem;
            }

            .nav-toggle {
                display: block;
            }

            .site-nav {
                display: none;
                position: absolute;
                top: 62px;
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px 20px;
                gap: 6px;
                box-shadow: 0 8px 18px rgba(10, 15, 25, 0.25);
            }

            .site-nav.open {
                display: flex;
            }

            .site-nav a.nav-link {
                padding: 12px 14px;
                font-size: 15px;
                width: 100%;
                text-align: left;
                border-radius: 8px;
            }

            .site-nav a.nav-link.active::after {
                left: 14px;
                right: 14px;
                bottom: 3px;
            }

            .nav-cta {
                margin-left: 0;
                text-align: center !important;
                justify-content: center;
                padding: 12px 18px !important;
            }

            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .metric-item .metric-number {
                font-size: 26px;
            }

            .topic-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .filter-bar .container {
                gap: 8px;
            }

            .filter-tag {
                padding: 6px 14px;
                font-size: 12px;
            }

            .section-heading {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
                margin-bottom: 24px;
            }

            .section-heading h2 {
                font-size: 22px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .subscribe-panel {
                padding: 28px 20px;
                border-radius: var(--radius-card);
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input {
                min-width: auto;
                width: 100%;
            }

            .subscribe-form button {
                width: 100%;
                text-align: center;
            }
        }

        @media screen and (max-width: 520px) {
            :root {
                --spacing-section: var(--spacing-section-mobile);
            }

            .container {
                padding: 0 16px;
            }

            .category-header {
                padding: 28px 0 24px;
                min-height: 130px;
            }

            .category-header h1 {
                font-size: 24px;
            }

            .breadcrumb {
                font-size: 12px;
                gap: 5px;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .metric-item {
                padding: 20px 12px;
            }

            .metric-item .metric-number {
                font-size: 22px;
            }

            .review-score-panel {
                padding: 26px 20px;
            }

            .review-score-panel .score-big {
                font-size: 38px;
            }

            .review-comment {
                padding: 14px 16px;
            }

            .faq-question {
                font-size: 15px;
                padding: 13px 4px;
            }
        }