/* roulang page: index */
:root {
            --color-primary: #1a2744;
            --color-primary-light: #243358;
            --color-primary-dark: #111c33;
            --color-accent: #c8923a;
            --color-accent-light: #d4a85c;
            --color-accent-dark: #a6762e;
            --color-gold: #c8923a;
            --color-bg: #f6f7f9;
            --color-bg-alt: #edf0f4;
            --color-surface: #ffffff;
            --color-text: #1a1f2e;
            --color-text-soft: #4a5168;
            --color-text-muted: #7b8298;
            --color-border: #dde1e8;
            --color-border-light: #e9ecf1;
            --color-success: #2d8a56;
            --color-warning: #e09b2c;
            --color-danger: #c0392b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-nav: 4px 0 24px rgba(0, 0, 0, 0.07);
            --sidebar-width: 252px;
            --sidebar-collapsed: 200px;
            --header-height-mobile: 60px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --section-gap: 72px;
            --section-gap-sm: 48px;
        }

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

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

        body {
            font-family: var(--font-sans);
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            transition: all var(--transition-fast);
        }
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            background: var(--color-surface);
        }
        input:focus,
        textarea:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 146, 58, 0.1);
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
        }

        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--color-primary);
            color: #ffffff;
            display: flex;
            flex-direction: column;
            z-index: 1000;
            box-shadow: var(--shadow-nav);
            transition: width var(--transition-base), transform var(--transition-base);
            overflow-y: auto;
            overflow-x: hidden;
        }
        .sidebar-nav .nav-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }
        .sidebar-nav .nav-brand a {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.03em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .sidebar-nav .nav-brand a:hover {
            color: var(--color-accent-light);
        }
        .sidebar-nav .nav-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
        }
        .sidebar-nav .nav-links {
            flex: 1;
            padding: 16px 14px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav .nav-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.78);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .sidebar-nav .nav-links a .nav-icon {
            width: 20px;
            text-align: center;
            flex-shrink: 0;
            font-size: 1rem;
        }
        .sidebar-nav .nav-links a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }
        .sidebar-nav .nav-links a.active {
            background: var(--color-accent);
            color: #ffffff;
            font-weight: 700;
            box-shadow: 0 4px 14px rgba(200, 146, 58, 0.35);
        }
        .sidebar-nav .nav-links a.active:hover {
            background: var(--color-accent-light);
        }
        .sidebar-nav .nav-footer {
            padding: 18px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
            flex-shrink: 0;
            text-align: center;
        }
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition-base);
        }
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height-mobile);
            background: var(--color-primary);
            color: #ffffff;
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
            justify-content: space-between;
        }
        .mobile-header .mobile-brand {
            font-weight: 800;
            font-size: 1.2rem;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-header .mobile-brand .brand-icon-sm {
            width: 30px;
            height: 30px;
            background: var(--color-accent);
            border-radius: 5px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 0.9rem;
        }
        .hamburger-btn {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .hamburger-btn span {
            width: 26px;
            height: 3px;
            background: #ffffff;
            border-radius: 3px;
            transition: all var(--transition-fast);
        }
        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .mobile-nav-overlay.active {
            display: block;
            opacity: 1;
        }
        .mobile-nav-drawer {
            display: none;
            position: fixed;
            top: var(--header-height-mobile);
            left: 0;
            right: 0;
            background: var(--color-primary);
            z-index: 997;
            padding: 8px 14px 20px;
            flex-direction: column;
            gap: 4px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            transform: translateY(-10px);
            opacity: 0;
            transition: all var(--transition-base);
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        }
        .mobile-nav-drawer.active {
            transform: translateY(0);
            opacity: 1;
        }
        .mobile-nav-drawer a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 16px;
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }
        .mobile-nav-drawer a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }
        .mobile-nav-drawer a.active {
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
        }
        footer.site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 32px 28px;
            margin-top: auto;
        }
        footer.site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            max-width: 1100px;
            margin: 0 auto;
        }
        footer.site-footer .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 14px;
            font-weight: 700;
        }
        footer.site-footer .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        footer.site-footer .footer-col a:hover {
            color: var(--color-accent-light);
        }
        footer.site-footer .footer-bottom {
            text-align: center;
            padding-top: 24px;
            margin-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 28px;
        }
        .section {
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: var(--section-gap-sm) 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
            color: var(--color-text);
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            margin-bottom: 36px;
            max-width: 640px;
            line-height: 1.6;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .section-title {
            margin-bottom: 8px;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(200, 146, 58, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 6px 20px rgba(200, 146, 58, 0.4);
            transform: translateY(-1px);
            color: #ffffff;
        }
        .btn-outline {
            border: 2px solid var(--color-accent);
            color: var(--color-accent);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--color-accent);
            color: #ffffff;
            transform: translateY(-1px);
        }
        .btn-white {
            background: #ffffff;
            color: var(--color-primary);
            font-weight: 700;
            box-shadow: var(--shadow-sm);
        }
        .btn-white:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            color: var(--color-primary);
        }
        .btn-lg {
            padding: 15px 34px;
            font-size: 1.05rem;
            border-radius: var(--radius-lg);
            font-weight: 700;
        }
        .card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
            transform: translateY(-2px);
        }
        .card-accent-top {
            border-top: 3px solid var(--color-accent);
        }
        .badge {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-accent {
            background: rgba(200, 146, 58, 0.12);
            color: var(--color-accent-dark);
        }
        .badge-primary {
            background: rgba(26, 39, 68, 0.08);
            color: var(--color-primary);
        }
        .badge-success {
            background: rgba(45, 138, 86, 0.1);
            color: var(--color-success);
        }
        .tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.78rem;
            font-weight: 500;
            background: var(--color-bg-alt);
            color: var(--color-text-soft);
            margin: 2px;
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            color: var(--color-primary);
            line-height: 1.1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }
        .divider {
            width: 50px;
            height: 4px;
            background: var(--color-accent);
            border-radius: 2px;
            margin: 16px 0;
        }
        .divider-center {
            margin-left: auto;
            margin-right: auto;
        }
        .hero-section {
            position: relative;
            background: var(--color-primary);
            color: #ffffff;
            overflow: hidden;
            padding: 60px 36px 70px;
            border-radius: 0;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .hero-section .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.28;
            z-index: 0;
        }
        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 39, 68, 0.88) 0%, rgba(26, 39, 68, 0.6) 100%);
            z-index: 1;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }
        .hero-section .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            padding: 7px 18px;
            border-radius: 30px;
            font-size: 0.88rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .hero-section h1 {
            font-size: 2.8rem;
            font-weight: 900;
            letter-spacing: 0.02em;
            color: #ffffff;
            margin-bottom: 14px;
            line-height: 1.25;
        }
        .hero-section .hero-desc {
            font-size: 1.1rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            max-width: 600px;
        }
        .hero-section .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            text-align: center;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            margin-bottom: 8px;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 22px;
        }
        .feature-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            text-align: center;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }
        .feature-card .feature-icon {
            width: 56px;
            height: 56px;
            background: rgba(200, 146, 58, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin: 0 auto 16px;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }
        .story-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }
        .story-block .story-image {
            height: 100%;
            min-height: 340px;
            overflow: hidden;
        }
        .story-block .story-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .story-block .story-text {
            padding: 40px 36px;
        }
        .story-block .story-text h2 {
            font-size: 1.7rem;
            margin-bottom: 12px;
        }
        .story-block .story-text p {
            color: var(--color-text-soft);
            line-height: 1.8;
            font-size: 0.95rem;
            margin-bottom: 10px;
        }
        .matches-scroll {
            display: flex;
            gap: 18px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
        }
        .matches-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .matches-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .matches-scroll::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 3px;
        }
        .match-card {
            flex: 0 0 300px;
            scroll-snap-align: start;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            flex-shrink: 0;
        }
        .match-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .match-card .match-img {
            height: 170px;
            overflow: hidden;
        }
        .match-card .match-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .match-card .match-info {
            padding: 16px 18px;
        }
        .match-card .match-info h4 {
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .match-card .match-info .match-meta {
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }
        .partners-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            align-items: center;
        }
        .partner-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: 18px 24px;
            font-weight: 600;
            color: var(--color-text-soft);
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            font-size: 0.95rem;
            text-align: center;
            min-width: 120px;
        }
        .partner-item:hover {
            box-shadow: var(--shadow-sm);
            color: var(--color-accent);
            border-color: var(--color-accent);
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }
        .testimonial-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 26px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            position: relative;
        }
        .testimonial-card .quote-mark {
            font-size: 3rem;
            color: var(--color-accent);
            opacity: 0.3;
            line-height: 0.6;
            position: absolute;
            top: 16px;
            left: 18px;
            font-family: serif;
        }
        .testimonial-card .testimonial-text {
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            padding-top: 20px;
            margin-bottom: 14px;
        }
        .testimonial-card .testimonial-author {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-text);
        }
        .testimonial-card .testimonial-role {
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-item .faq-question {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
            transition: background var(--transition-fast);
            color: var(--color-text);
        }
        .faq-item .faq-question:hover {
            background: var(--color-bg);
        }
        .faq-item .faq-question .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }
        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 22px;
            color: var(--color-text-soft);
            line-height: 1.7;
            font-size: 0.92rem;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }
        .news-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .news-card .news-img {
            height: 180px;
            overflow: hidden;
        }
        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }
        .news-card:hover .news-img img {
            transform: scale(1.04);
        }
        .news-card .news-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .news-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-bottom: 6px;
        }
        .news-card .news-title {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card .news-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            flex: 1;
        }
        .news-card .news-link {
            margin-top: 12px;
            font-weight: 600;
            color: var(--color-accent);
            font-size: 0.88rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }
        .news-card .news-link:hover {
            gap: 8px;
            color: var(--color-accent-dark);
        }
        .cta-section {
            background: var(--color-primary);
            color: #ffffff;
            text-align: center;
            padding: 56px 28px;
            border-radius: var(--radius-xl);
            position: relative;
            overflow: hidden;
            margin: 0 20px;
        }
        .cta-section .cta-bg-pattern {
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #ffffff;
            font-size: 1.8rem;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 22px;
            font-size: 1rem;
        }
        .highlight-text {
            color: var(--color-accent);
            font-weight: 700;
        }
        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 200px;
                --section-gap: 52px;
                --section-gap-sm: 36px;
            }
            .sidebar-nav .nav-brand a {
                font-size: 1.25rem;
            }
            .sidebar-nav .nav-links a {
                font-size: 0.85rem;
                padding: 10px 12px;
                gap: 8px;
            }
            .hero-section h1 {
                font-size: 2.2rem;
            }
            .hero-section .hero-desc {
                font-size: 0.95rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .story-block {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .story-block .story-image {
                min-height: 220px;
                max-height: 280px;
            }
            .story-block .story-text {
                padding: 28px 24px;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .stat-number {
                font-size: 2rem;
            }
            footer.site-footer {
                padding: 36px 20px 22px;
            }
            .cta-section {
                margin: 0 12px;
                padding: 40px 20px;
            }
        }
        @media (max-width: 768px) {
            .sidebar-nav {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--header-height-mobile);
            }
            .mobile-header {
                display: flex;
            }
            .mobile-nav-drawer {
                display: flex;
            }
            .hero-section {
                padding: 40px 20px 48px;
                min-height: auto;
            }
            .hero-section h1 {
                font-size: 1.8rem;
            }
            .hero-section .hero-desc {
                font-size: 0.9rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-card {
                padding: 18px 14px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .feature-card {
                padding: 20px 16px;
            }
            .match-card {
                flex: 0 0 250px;
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .partners-row {
                gap: 12px;
            }
            .partner-item {
                min-width: 90px;
                padding: 14px 16px;
                font-size: 0.85rem;
            }
            .section {
                padding: var(--section-gap-sm) 0;
            }
            .container {
                padding: 0 16px;
            }
            .cta-section {
                margin: 0 8px;
                border-radius: var(--radius-lg);
                padding: 36px 16px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            footer.site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .hero-section h1 {
                font-size: 1.5rem;
            }
            .hero-section .hero-desc {
                font-size: 0.85rem;
            }
            .hero-section {
                padding: 30px 14px 36px;
            }
            .hero-section .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-section .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 14px 10px;
            }
            .stat-number {
                font-size: 1.4rem;
            }
            .stat-label {
                font-size: 0.75rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .match-card {
                flex: 0 0 220px;
            }
            .match-card .match-img {
                height: 130px;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
            .story-block .story-text {
                padding: 20px 16px;
            }
            .story-block .story-text h2 {
                font-size: 1.3rem;
            }
            .faq-item .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-item .faq-answer {
                font-size: 0.85rem;
            }
            .news-card .news-img {
                height: 140px;
            }
            .btn-lg {
                padding: 12px 22px;
                font-size: 0.95rem;
            }
            footer.site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a2a5e;
            --color-primary-dark: #0f1d42;
            --color-primary-light: #243a78;
            --color-accent: #c8963e;
            --color-accent-hover: #d4a84f;
            --color-accent-light: #f0d89c;
            --color-bg: #f7f8fb;
            --color-bg-white: #ffffff;
            --color-bg-dark: #0e1527;
            --color-bg-card: #ffffff;
            --color-text: #1e1e1e;
            --color-text-light: #555555;
            --color-text-muted: #888888;
            --color-text-on-dark: #e8e8e8;
            --color-border: #e2e5ee;
            --color-border-light: #eef0f5;
            --color-success: #2d8a56;
            --color-warning: #d4942b;
            --color-danger: #c0392b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --nav-width: 260px;
            --header-height: 64px;
            --max-content-width: 1100px;
            --section-gap: 64px;
            --section-gap-lg: 80px;
            --card-gap: 24px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: row;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        input {
            font-family: inherit;
            outline: none;
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.35;
            font-weight: 700;
            color: var(--color-primary);
        }

        /* ========== 左侧竖向导航 ========== */
        .site-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: linear-gradient(180deg, var(--color-primary-dark) 0%, var(--color-primary) 40%, var(--color-primary-light) 100%);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
            transition: transform var(--transition-normal);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            flex-shrink: 0;
        }
        .sidebar-brand .logo-link {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #ffffff;
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .sidebar-brand .logo-link:hover {
            color: var(--color-accent-light);
        }
        .sidebar-brand .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
            color: #1a1a1a;
            font-weight: 700;
        }
        .sidebar-brand .brand-subtitle {
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }

        .sidebar-nav-wrap {
            flex: 1;
            padding: 16px 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .sidebar-nav-wrap .nav-section-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: rgba(255, 255, 255, 0.35);
            padding: 8px 24px 4px;
            margin-top: 8px;
        }
        .sidebar-nav-wrap .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.92rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border-left: 3px solid transparent;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .sidebar-nav-wrap .nav-link:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
            border-left-color: rgba(255, 255, 255, 0.4);
        }
        .sidebar-nav-wrap .nav-link.active {
            background: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            border-left-color: var(--color-accent);
            font-weight: 600;
        }
        .sidebar-nav-wrap .nav-icon {
            font-size: 1.05rem;
            width: 24px;
            text-align: center;
            flex-shrink: 0;
        }

        .sidebar-footer-info {
            padding: 16px 24px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.35);
            line-height: 1.6;
        }

        /* ========== 右侧主内容区 ========== */
        .main-content {
            margin-left: var(--nav-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            width: calc(100% - var(--nav-width));
        }

        /* 移动端顶部导航 */
        .mobile-top-bar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: var(--color-primary);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .mobile-top-bar .mobile-logo {
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-top-bar .mobile-logo .logo-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #1a1a1a;
            font-weight: 700;
            flex-shrink: 0;
        }
        .mobile-menu-toggle {
            margin-left: auto;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 6px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .mobile-menu-toggle:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-normal);
            pointer-events: none;
        }
        .mobile-nav-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        /* ========== 页面 Banner ========== */
        .page-banner {
            position: relative;
            padding: 72px 48px 64px;
            background: linear-gradient(160deg, #0f1d42 0%, #1a2a5e 30%, #1e3470 100%);
            overflow: hidden;
            color: #ffffff;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
            z-index: 1;
        }
        .page-banner .banner-inner {
            position: relative;
            z-index: 2;
            max-width: var(--max-content-width);
            width: 100%;
            margin: 0 auto;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #1a1a1a;
            font-weight: 600;
            font-size: 0.82rem;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            letter-spacing: 0.03em;
            margin-bottom: 16px;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
            line-height: 1.25;
        }
        .page-banner .banner-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 620px;
            line-height: 1.7;
        }
        .page-banner .banner-meta {
            display: flex;
            gap: 24px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .page-banner .banner-meta span {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ========== 内容板块通用 ========== */
        .section {
            padding: var(--section-gap) 48px;
            position: relative;
        }
        .section-inner {
            max-width: var(--max-content-width);
            margin: 0 auto;
            width: 100%;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .section-header .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-bg-light {
            background-color: var(--color-bg-white);
        }
        .section-bg-accent-light {
            background-color: #fdf8f0;
        }

        /* ========== 卡片网格 ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: var(--card-gap);
        }
        .card-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        /* ========== 玩法卡片 ========== */
        .play-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .play-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--color-accent-light);
        }
        .play-card .card-img-wrap {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: #e8ecf3;
        }
        .play-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .play-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .play-card .card-img-wrap .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--color-accent);
            color: #1a1a1a;
            font-weight: 700;
            font-size: 0.75rem;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.03em;
            z-index: 2;
        }
        .play-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .play-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .play-card .card-body p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.65;
            flex: 1;
        }
        .play-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-accent);
            transition: gap var(--transition-fast);
        }
        .play-card .card-body .card-link:hover {
            gap: 10px;
            color: var(--color-accent-hover);
        }

        /* ========== 详细指南区块 ========== */
        .guide-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .guide-block .guide-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 14px;
        }
        .guide-block .guide-text p {
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .guide-block .guide-text .highlight-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 16px;
        }
        .guide-block .guide-text .highlight-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.93rem;
            color: var(--color-text);
            line-height: 1.6;
        }
        .guide-block .guide-text .highlight-list li .hl-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: #e8f4e8;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--color-success);
            margin-top: 2px;
        }
        .guide-block .guide-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
        }
        .guide-block .guide-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== 策略卡片 ========== */
        .strategy-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            text-align: center;
            height: 100%;
        }
        .strategy-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .strategy-card .strategy-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #f0f3fa;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin: 0 auto 16px;
            color: var(--color-primary);
        }
        .strategy-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .strategy-card p {
            font-size: 0.88rem;
            color: var(--color-text-light);
            line-height: 1.65;
        }

        /* ========== 误区列表 ========== */
        .mistake-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }
        .mistake-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--color-bg-white);
            padding: 20px 22px;
            border-radius: var(--radius-md);
            border-left: 4px solid var(--color-danger);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-fast);
        }
        .mistake-item:hover {
            box-shadow: var(--shadow-md);
        }
        .mistake-item .mistake-num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #fde8e8;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-danger);
        }
        .mistake-item .mistake-content h4 {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 4px;
        }
        .mistake-item .mistake-content p {
            font-size: 0.85rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            width: 100%;
            padding: 18px 22px;
            background: none;
            text-align: left;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: -2px;
            border-radius: var(--radius-md);
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #f0f3fa;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
            color: var(--color-primary);
        }
        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            background: var(--color-accent-light);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.75;
        }

        /* ========== CTA 板块 ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            color: #ffffff;
            text-align: center;
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #1a1a1a;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 32px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            letter-spacing: 0.03em;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.35);
        }
        .btn-cta:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.5);
            transform: translateY(-2px);
            color: #1a1a1a;
        }
        .btn-cta:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 3px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 48px 20px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            max-width: var(--max-content-width);
            margin: 0 auto;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            margin-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.3);
            max-width: var(--max-content-width);
            margin-left: auto;
            margin-right: auto;
            width: 100%;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--color-text-muted);
            padding: 16px 48px 0;
            max-width: var(--max-content-width);
            margin: 0 auto;
            width: 100%;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .sep {
            color: #ccc;
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1200px) {
            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-block {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .section {
                padding: 48px 32px;
            }
            .page-banner {
                padding: 56px 32px 48px;
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 2.1rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 1024px) {
            :root {
                --nav-width: 0;
                --section-gap: 48px;
                --section-gap-lg: 56px;
            }
            .site-sidebar {
                transform: translateX(-100%);
                width: 280px;
                transition: transform var(--transition-normal);
                z-index: 1001;
            }
            .site-sidebar.mobile-open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
                width: 100%;
                padding-top: var(--header-height);
            }
            .mobile-top-bar {
                display: flex;
            }
            .mobile-nav-overlay {
                display: block;
            }
            .mobile-nav-overlay.open {
                pointer-events: auto;
                opacity: 1;
            }
            .card-grid.cols-3,
            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid.cols-2 {
                grid-template-columns: 1fr 1fr;
            }
            .guide-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .guide-block .guide-img {
                order: -1;
                max-height: 300px;
            }
            .section {
                padding: 40px 24px;
            }
            .page-banner {
                padding: 44px 24px 40px;
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .breadcrumb {
                padding: 12px 24px 0;
            }
        }

        @media (max-width: 768px) {
            .card-grid,
            .card-grid.cols-2,
            .card-grid.cols-3,
            .card-grid.cols-4 {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 36px 16px;
            }
            .page-banner {
                padding: 36px 16px 32px;
                min-height: 200px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner .banner-desc {
                font-size: 0.88rem;
            }
            .page-banner .banner-meta {
                gap: 12px;
                flex-direction: column;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .section-header .section-subtitle {
                font-size: 0.85rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .cta-section {
                padding: 40px 20px;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .btn-cta {
                font-size: 0.88rem;
                padding: 11px 24px;
            }
            .play-card .card-img-wrap {
                height: 160px;
            }
            .mistake-item {
                padding: 16px 14px;
            }
            .strategy-card {
                padding: 20px 16px;
            }
            .breadcrumb {
                padding: 10px 16px 0;
                font-size: 0.75rem;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .page-banner h1 {
                font-size: 1.3rem;
            }
            .section-header h2 {
                font-size: 1.25rem;
            }
            .play-card .card-body h3 {
                font-size: 1rem;
            }
            .guide-block .guide-text h3 {
                font-size: 1.2rem;
            }
            .faq-question {
                font-size: 0.88rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .btn-cta {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1a2942;
            --primary-light: #243550;
            --accent: #c9a96e;
            --accent-light: #d9bf8a;
            --accent-dark: #b8944f;
            --bg: #f5f3ef;
            --bg-white: #ffffff;
            --text: #2c3e50;
            --text-strong: #1a1a2e;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --border: #e0ddd8;
            --border-light: #eeebe5;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.13);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --sidebar-width: 250px;
            --sidebar-bg: #141e2e;
            --sidebar-text: #c8cdd5;
            --sidebar-active: #c9a96e;
            --sidebar-hover-bg: rgba(255, 255, 255, 0.05);
            --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: var(--text-strong);
        }

        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        /* Sidebar */
        .sidebar {
            width: var(--sidebar-width);
            background: var(--sidebar-bg);
            color: var(--sidebar-text);
            position: fixed;
            top: 0;
            left: 0;
            height: 100vh;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .sidebar-brand {
            padding: 24px 22px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-brand a {
            font-size: 1.35rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.03em;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color var(--transition);
        }

        .sidebar-brand a:hover {
            color: var(--accent-light);
        }

        .sidebar-brand .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
            box-shadow: 0 0 10px rgba(201, 169, 110, 0.5);
        }

        .sidebar-nav {
            flex: 1;
            padding: 14px 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 22px;
            font-size: 0.95rem;
            color: var(--sidebar-text);
            transition: all var(--transition);
            border-left: 3px solid transparent;
            position: relative;
            font-weight: 500;
            letter-spacing: 0.01em;
        }

        .sidebar-nav a:hover {
            background: var(--sidebar-hover-bg);
            color: #ffffff;
            border-left-color: rgba(201, 169, 110, 0.4);
        }

        .sidebar-nav a.active {
            background: rgba(201, 169, 110, 0.12);
            color: var(--sidebar-active);
            border-left-color: var(--sidebar-active);
            font-weight: 600;
        }

        .sidebar-nav .nav-icon {
            font-size: 1.1rem;
            width: 24px;
            text-align: center;
            flex-shrink: 0;
        }

        .sidebar-footer-info {
            padding: 16px 22px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.35);
            flex-shrink: 0;
            line-height: 1.6;
        }

        /* Main Content */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        /* Mobile Top Bar */
        .mobile-topbar {
            display: none;
            background: var(--sidebar-bg);
            color: #fff;
            padding: 14px 18px;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 999;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-topbar .mobile-brand {
            font-weight: 700;
            font-size: 1.15rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-topbar .mobile-brand .brand-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }

        .hamburger {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 4px;
            cursor: pointer;
            background: none;
            border: none;
            z-index: 1001;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 999;
            transition: opacity var(--transition);
        }

        /* Container */
        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* Section spacing */
        .section {
            padding: 56px 0;
        }
        .section-sm {
            padding: 36px 0;
        }
        .section-lg {
            padding: 72px 0;
        }

        .section-header {
            margin-bottom: 36px;
            position: relative;
        }
        .section-header .section-tag {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent-dark);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
            background: rgba(201, 169, 110, 0.1);
            padding: 4px 12px;
            border-radius: 20px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-strong);
            margin: 0;
        }
        .section-header .section-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-top: 6px;
        }

        /* Cards */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: #d5d0c7;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 20px 22px;
        }
        .card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-strong);
            line-height: 1.4;
        }
        .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .card-meta {
            display: flex;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 10px;
            flex-wrap: wrap;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 14px;
            background: rgba(26, 41, 66, 0.07);
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .card-tag.hot {
            background: rgba(220, 53, 69, 0.1);
            color: #c0392b;
        }
        .card-tag.live {
            background: rgba(39, 174, 96, 0.1);
            color: #1e8449;
            animation: pulse-live 1.6s infinite;
        }
        @keyframes pulse-live {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }

        /* Grid */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius);
            transition: all var(--transition);
            letter-spacing: 0.02em;
            cursor: pointer;
            border: 2px solid transparent;
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 15px 34px;
            font-size: 1.05rem;
            border-radius: var(--radius);
        }

        /* Hero */
        .hero-banner {
            background: linear-gradient(170deg, #1a2942 0%, #1e3355 40%, #243d60 100%);
            color: #fff;
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        .hero-banner .hero-inner {
            position: relative;
            z-index: 1;
        }
        .hero-banner .breadcrumb {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 14px;
        }
        .hero-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }
        .hero-banner .breadcrumb a:hover {
            color: var(--accent-light);
        }
        .hero-banner .breadcrumb span {
            margin: 0 6px;
        }
        .hero-banner h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .hero-banner .hero-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 650px;
            line-height: 1.7;
        }
        .hero-stats-row {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 18px 24px;
            min-width: 100px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: all var(--transition);
        }
        .hero-stat:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.25);
        }
        .hero-stat .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-light);
            line-height: 1;
        }
        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* Info list */
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .info-list-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 18px 20px;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
        }
        .info-list-item:hover {
            box-shadow: var(--shadow);
            border-color: #d5d0c7;
            transform: translateX(3px);
        }
        .info-list-item .list-thumb {
            width: 70px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .info-list-item .list-content {
            flex: 1;
            min-width: 0;
        }
        .info-list-item .list-content h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .info-list-item .list-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* League cards */
        .league-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
            cursor: pointer;
        }
        .league-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #d5d0c7;
        }
        .league-card img {
            width: 100%;
            aspect-ratio: 16 / 11;
            object-fit: cover;
        }
        .league-card .league-name {
            padding: 16px 12px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-strong);
        }
        .league-card .league-count {
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-bottom: 14px;
        }

        /* Brand intro block */
        .brand-intro-block {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 32px;
            align-items: center;
            flex-wrap: wrap;
        }
        .brand-intro-block img {
            width: 180px;
            height: 180px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
        }
        .brand-intro-block .brand-text h3 {
            font-size: 1.45rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-strong);
        }
        .brand-intro-block .brand-text p {
            color: var(--text-muted);
            line-height: 1.8;
            font-size: 0.95rem;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: #d5d0c7;
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--text-strong);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            font-size: 1.2rem;
            transition: transform var(--transition);
            flex-shrink: 0;
            color: var(--accent);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.75;
            border-top: 1px solid transparent;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 16px 22px;
            border-top-color: var(--border-light);
        }

        /* CTA */
        .cta-block {
            background: linear-gradient(160deg, #1a2942 0%, #1e3355 100%);
            color: #fff;
            text-align: center;
            padding: 52px 28px;
            border-radius: var(--radius-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.13;
            z-index: 0;
        }
        .cta-block>* {
            position: relative;
            z-index: 1;
        }
        .cta-block h3 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        /* Timeline */
        .timeline {
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: relative;
            padding-left: 24px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--border);
            border-radius: 1px;
        }
        .timeline-item {
            position: relative;
            padding-left: 24px;
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 16px 20px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .timeline-item:hover {
            box-shadow: var(--shadow);
            border-color: #d5d0c7;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -16px;
            top: 20px;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            border: 2px solid #fff;
            box-shadow: 0 0 0 3px var(--border-light);
        }
        .timeline-item .tl-date {
            font-size: 0.8rem;
            color: var(--accent-dark);
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 4px;
        }
        .timeline-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 2px;
        }
        .timeline-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Footer */
        .site-footer {
            background: #141e2e;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 28px 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            max-width: 1100px;
            margin: 0 auto 32px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-col a,
        .footer-col p {
            display: block;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            padding: 6px 0;
            transition: color var(--transition);
            line-height: 1.6;
        }
        .footer-col a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            text-align: center;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.35);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            max-width: 1100px;
            margin: 0 auto;
            letter-spacing: 0.02em;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-banner h1 {
                font-size: 2rem;
            }
            .brand-intro-block {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }
            .brand-intro-block img {
                width: 140px;
                height: 140px;
                margin: 0 auto;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: var(--shadow-lg);
            }
            .sidebar-overlay {
                display: block;
                opacity: 0;
                pointer-events: none;
                transition: opacity var(--transition);
            }
            .sidebar-overlay.show {
                opacity: 1;
                pointer-events: auto;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .grid-3,
            .grid-2,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .hero-banner {
                padding: 40px 0 32px;
            }
            .hero-banner h1 {
                font-size: 1.65rem;
            }
            .hero-banner .hero-desc {
                font-size: 0.9rem;
            }
            .hero-stats-row {
                gap: 12px;
                justify-content: center;
            }
            .hero-stat {
                padding: 14px 16px;
                min-width: 80px;
            }
            .hero-stat .stat-num {
                font-size: 1.5rem;
            }
            .section {
                padding: 36px 0;
            }
            .section-lg {
                padding: 48px 0;
            }
            .container,
            .container-wide {
                padding: 0 16px;
            }
            .info-list-item {
                flex-direction: column;
                gap: 10px;
                padding: 14px;
            }
            .info-list-item .list-thumb {
                width: 100%;
                height: 140px;
                aspect-ratio: 16 / 9;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
            .brand-intro-block {
                padding: 20px 16px;
            }
            .brand-intro-block .brand-text h3 {
                font-size: 1.2rem;
            }
            .timeline {
                padding-left: 16px;
            }
            .timeline-item {
                padding: 12px 14px;
            }
            .timeline-item::before {
                left: -10px;
                top: 16px;
                width: 8px;
                height: 8px;
            }
        }

        @media (max-width: 520px) {
            .hero-banner h1 {
                font-size: 1.4rem;
            }
            .hero-stats-row {
                flex-direction: column;
                gap: 8px;
                align-items: stretch;
            }
            .hero-stat {
                text-align: left;
                display: flex;
                justify-content: space-between;
                align-items: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .btn {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .card-body {
                padding: 14px 16px;
            }
            .card-body h3 {
                font-size: 0.95rem;
            }
        }

        /* Focus states */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        /* Active nav indicator pulse */
        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 8px rgba(201, 169, 110, 0.6);
        }

/* roulang page: category3 */
:root {
            --color-primary: #1a3a5c;
            --color-primary-light: #234b75;
            --color-primary-dark: #0f2540;
            --color-accent: #c9a96e;
            --color-accent-light: #d9bf8a;
            --color-accent-dark: #b8934f;
            --color-bg: #f8f7f4;
            --color-card-bg: #ffffff;
            --color-text: #2c3e50;
            --color-text-soft: #5a6c7d;
            --color-muted: #7f8c8d;
            --color-border: #e8e5df;
            --color-border-light: #f0ede8;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --sidebar-width: 260px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ============ APP LAYOUT ============ */
        .app-layout {
            display: flex;
            min-height: 100vh;
            flex: 1;
        }

        /* ============ SIDEBAR ============ */
        .sidebar {
            width: var(--sidebar-width);
            flex-shrink: 0;
            background: linear-gradient(180deg, #1a3a5c 0%, #0f2540 100%);
            color: #ffffff;
            display: flex;
            flex-direction: column;
            position: sticky;
            top: 0;
            height: 100vh;
            z-index: 100;
            overflow-y: auto;
            overflow-x: hidden;
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            transition: transform var(--transition-normal), width var(--transition-normal);
        }

        .sidebar::-webkit-scrollbar {
            width: 4px;
        }

        .sidebar::-webkit-scrollbar-track {
            background: transparent;
        }

        .sidebar::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
        }

        .sidebar-brand {
            padding: 24px 20px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            flex-shrink: 0;
        }

        .sidebar-brand .logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: #ffffff;
            display: block;
            text-decoration: none;
            line-height: 1.3;
        }

        .sidebar-brand .logo-subtitle {
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 0.06em;
            margin-top: 4px;
            display: block;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 20px;
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            font-size: 0.92rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border-left: 3px solid transparent;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
            border-left-color: rgba(255, 255, 255, 0.3);
        }

        .sidebar-nav a.active {
            background: rgba(201, 169, 110, 0.15);
            color: var(--color-accent-light);
            border-left-color: var(--color-accent);
            font-weight: 600;
        }

        .sidebar-nav a .nav-icon {
            font-size: 1.15rem;
            flex-shrink: 0;
            width: 28px;
            text-align: center;
        }

        .sidebar-footer-info {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
            flex-shrink: 0;
            line-height: 1.6;
        }

        /* Mobile hamburger */
        .mobile-nav-toggle {
            display: none;
            position: fixed;
            top: 14px;
            left: 14px;
            z-index: 200;
            background: var(--color-primary);
            color: #fff;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            font-size: 1.4rem;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-fast);
        }

        .mobile-nav-toggle:hover {
            background: var(--color-primary-light);
            box-shadow: var(--shadow-lg);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 99;
            transition: opacity var(--transition-normal);
        }

        .sidebar-overlay.show {
            display: block;
        }

        /* ============ MAIN CONTENT ============ */
        .main-content {
            flex: 1;
            min-width: 0;
            background: var(--color-bg);
        }

        /* ============ HERO SECTION ============ */
        .hero-guide {
            position: relative;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: #ffffff;
            padding: 60px 40px;
        }

        .hero-guide::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(15, 37, 64, 0.82) 0%,
                    rgba(26, 58, 92, 0.78) 40%,
                    rgba(15, 37, 64, 0.85) 100%);
            z-index: 1;
        }

        .hero-guide-content {
            position: relative;
            z-index: 2;
            max-width: 750px;
            width: 100%;
        }

        .hero-guide-content .hero-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #1a3a5c;
            padding: 6px 18px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.08em;
            margin-bottom: 20px;
            text-transform: uppercase;
        }

        .hero-guide-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
            line-height: 1.2;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .hero-guide-content .hero-desc {
            font-size: 1.1rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-guide-content .hero-cta-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-normal);
            border: 2px solid transparent;
            white-space: nowrap;
        }

        .btn-accent {
            background: var(--color-accent);
            color: #1a3a5c;
            border-color: var(--color-accent);
            box-shadow: 0 4px 16px rgba(201, 169, 110, 0.35);
        }

        .btn-accent:hover {
            background: var(--color-accent-light);
            border-color: var(--color-accent-light);
            box-shadow: 0 8px 28px rgba(201, 169, 110, 0.5);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: #ffffff;
            border-color: rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 255, 255, 0.15);
        }

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

        .btn-outline-primary:hover {
            background: var(--color-primary);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26, 58, 92, 0.3);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.82rem;
            border-radius: 40px;
        }

        /* ============ SECTION COMMONS ============ */
        .section {
            padding: 56px 32px;
        }

        .section-container {
            max-width: 1100px;
            margin: 0 auto;
            width: 100%;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header .section-badge {
            display: inline-block;
            background: rgba(201, 169, 110, 0.15);
            color: var(--color-accent-dark);
            padding: 5px 16px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.78rem;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary-dark);
            letter-spacing: 0.02em;
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .section-header .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-muted);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-alt {
            background: #ffffff;
        }

        .section-accent-bg {
            background: linear-gradient(180deg, #f8f7f4 0%, #f0ede6 100%);
        }

        /* ============ CARDS ============ */
        .card {
            background: var(--color-card-bg);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            height: 100%;
        }

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

        .card-icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card-icon-circle.accent-bg {
            background: rgba(201, 169, 110, 0.15);
            color: var(--color-accent-dark);
        }

        .card-icon-circle.primary-bg {
            background: rgba(26, 58, 92, 0.1);
            color: var(--color-primary);
        }

        .card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary-dark);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .card p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        .card-tag {
            display: inline-block;
            background: rgba(26, 58, 92, 0.06);
            color: var(--color-primary);
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

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

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

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

        /* ============ IMAGE TEXT BLOCK ============ */
        .image-text-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .image-text-block .text-col h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary-dark);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }

        .image-text-block .text-col p {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.85;
            margin-bottom: 12px;
        }

        .image-text-block .image-col img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-normal);
        }

        .image-text-block .image-col img:hover {
            box-shadow: var(--shadow-xl);
            transform: scale(1.02);
        }

        .highlight-list {
            list-style: none;
            padding: 0;
            margin: 16px 0;
        }

        .highlight-list li {
            padding: 8px 0 8px 28px;
            position: relative;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        .highlight-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 8px;
            color: var(--color-accent);
            font-weight: 700;
            font-size: 0.85rem;
        }

        /* ============ STEPS ============ */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            counter-reset: step-counter;
        }

        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--color-card-bg);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            counter-increment: step-counter;
        }

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

        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            letter-spacing: 0.04em;
        }

        .step-item:nth-child(even) .step-number {
            background: var(--color-accent);
            color: #1a3a5c;
        }

        .step-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary-dark);
            margin-bottom: 4px;
        }

        .step-content p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        /* ============ STATS ROW ============ */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-lg);
            padding: 28px 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }

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

        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            line-height: 1.2;
        }

        .stat-card:nth-child(2) .stat-number {
            color: var(--color-accent-dark);
        }

        .stat-card:nth-child(3) .stat-number {
            color: #2c7a5c;
        }

        .stat-card:nth-child(4) .stat-number {
            color: #6b4f9e;
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--color-muted);
            margin-top: 6px;
            font-weight: 500;
            letter-spacing: 0.03em;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary-dark);
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all var(--transition-fast);
            line-height: 1.5;
        }

        .faq-question:hover {
            color: var(--color-accent-dark);
            background: rgba(201, 169, 110, 0.04);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 1.2rem;
            color: var(--color-accent);
            transition: transform var(--transition-fast);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.85;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px 24px;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, #1a3a5c 0%, #0f2540 100%);
            color: #ffffff;
            text-align: center;
            padding: 56px 32px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: rgba(201, 169, 110, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #0f1f30;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 32px 24px;
            font-size: 0.9rem;
            line-height: 1.8;
            flex-shrink: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            max-width: 1100px;
            margin: 0 auto;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-col h4 {
            color: #ffffff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            font-size: 0.85rem;
            padding: 3px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--color-accent-light);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.3);
            letter-spacing: 0.02em;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .image-text-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .image-text-block .image-col {
                order: -1;
            }
            .image-text-block .image-col img {
                max-height: 320px;
                object-fit: cover;
                width: 100%;
            }
            .hero-guide-content h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .app-layout {
                flex-direction: column;
            }

            .sidebar {
                width: 100%;
                height: auto;
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                z-index: 100;
                transform: translateX(-100%);
                max-height: 100vh;
                overflow-y: auto;
                border-right: none;
                border-bottom: 2px solid var(--color-accent);
                box-shadow: var(--shadow-xl);
                transition: transform var(--transition-normal);
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .sidebar-overlay {
                display: none;
            }

            .sidebar-overlay.show {
                display: block;
            }

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

            .main-content {
                padding-top: 0;
            }

            .hero-guide {
                min-height: 340px;
                padding: 50px 20px;
            }

            .hero-guide-content h1 {
                font-size: 1.8rem;
            }
            .hero-guide-content .hero-desc {
                font-size: 0.95rem;
            }

            .section {
                padding: 40px 16px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }

            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .btn {
                padding: 10px 20px;
                font-size: 0.85rem;
            }

            .steps-list {
                gap: 12px;
            }
            .step-item {
                padding: 16px 18px;
                gap: 14px;
            }
            .step-number {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .hero-guide {
                min-height: 300px;
                padding: 40px 16px;
            }
            .hero-guide-content h1 {
                font-size: 1.5rem;
            }
            .hero-guide-content .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }
            .hero-guide-content .hero-cta-group .btn {
                width: 100%;
                justify-content: center;
                max-width: 260px;
            }

            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-label {
                font-size: 0.75rem;
            }

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

            .card {
                padding: 20px 16px;
            }
            .card h3 {
                font-size: 1rem;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1a2d4a;
            --primary-light: #243b5e;
            --primary-dark: #0f1c30;
            --accent: #c9a96e;
            --accent-light: #d9be8f;
            --accent-dark: #b0894f;
            --bg: #f4f5f7;
            --bg-white: #ffffff;
            --bg-light: #fafbfc;
            --bg-card: #ffffff;
            --text: #1e293b;
            --text-secondary: #5a6878;
            --text-muted: #8896a6;
            --text-light: #b0bac5;
            --border: #e2e7ed;
            --border-light: #eef1f5;
            --shadow-sm: 0 1px 3px rgba(15, 28, 48, 0.06);
            --shadow: 0 2px 8px rgba(15, 28, 48, 0.08);
            --shadow-md: 0 4px 16px rgba(15, 28, 48, 0.10);
            --shadow-lg: 0 8px 32px rgba(15, 28, 48, 0.12);
            --shadow-xl: 0 16px 48px rgba(15, 28, 48, 0.15);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --sidebar-width: 250px;
            --header-mobile-height: 60px;
            --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background: var(--bg);
            display: flex;
            min-height: 100vh;
            flex-direction: row;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            transition: all var(--transition);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            transition: border-color var(--transition), box-shadow var(--transition);
            background: var(--bg-white);
            color: var(--text);
        }
        input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.12);
            outline: none;
        }

        ul {
            list-style: none;
        }

        /* ========== SIDEBAR (桌面端左侧导航) ========== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            box-shadow: 2px 0 20px rgba(15, 28, 48, 0.25);
            transition: transform var(--transition);
        }
        .sidebar::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }

        .sidebar-brand {
            padding: 24px 22px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }
        .sidebar-brand .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.5px;
        }
        .sidebar-brand .brand-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary-dark);
            flex-shrink: 0;
        }
        .sidebar-brand .brand-subtitle {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 4px;
            letter-spacing: 0.3px;
        }

        .sidebar-search {
            padding: 14px 18px;
            flex-shrink: 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .sidebar-search input {
            width: 100%;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #fff;
            border-radius: var(--radius-full);
            padding: 10px 16px 10px 38px;
            font-size: 0.85rem;
            transition: all var(--transition);
        }
        .sidebar-search input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }
        .sidebar-search input:focus {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.15);
        }
        .sidebar-search .search-icon-wrap {
            position: relative;
        }
        .sidebar-search .search-icon-wrap .fa-magnifying-glass {
            position: absolute;
            left: 30px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.85rem;
            pointer-events: none;
            z-index: 1;
        }

        .sidebar-nav {
            flex: 1;
            padding: 12px 0;
            display: flex;
            flex-direction: column;
        }
        .nav-links {
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding: 0 10px;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.93rem;
            font-weight: 500;
            letter-spacing: 0.2px;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }
        .nav-links a.active {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(201, 169, 110, 0.35);
        }
        .nav-links a .nav-icon {
            font-size: 1rem;
            flex-shrink: 0;
            width: 22px;
            text-align: center;
        }

        .sidebar-footer-tag {
            padding: 16px 18px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            flex-shrink: 0;
        }
        .sidebar-footer-tag p {
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.35);
            line-height: 1.5;
            text-align: center;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            transition: margin-left var(--transition);
        }

        /* ========== MOBILE HEADER ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-mobile-height);
            background: var(--primary);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(15, 28, 48, 0.25);
        }
        .mobile-header .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            color: #fff;
            font-size: 1.05rem;
        }
        .mobile-header .mobile-logo .logo-dot {
            width: 32px;
            height: 32px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--primary-dark);
            flex-shrink: 0;
        }
        .mobile-header .hamburger {
            width: 38px;
            height: 38px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border: none;
            transition: background var(--transition);
        }
        .mobile-header .hamburger:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        .mobile-header .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .mobile-header .hamburger.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-header .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-header .hamburger.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Mobile sidebar overlay */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition);
            pointer-events: none;
        }
        .sidebar-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* ========== CONTAINER ========== */
        .container {
            width: 100%;
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 28px;
        }
        @media (max-width: 1200px) {
            .container {
                max-width: 960px;
                padding: 0 24px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
                max-width: 100%;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: var(--primary-dark);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 28, 48, 0.88) 0%, rgba(26, 45, 74, 0.78) 50%, rgba(15, 28, 48, 0.9) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
            width: 100%;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.8rem;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            letter-spacing: 0.8px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .page-banner .banner-desc {
            font-size: 1.08rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            line-height: 1.7;
        }
        .page-banner .banner-stats-row {
            display: flex;
            gap: 32px;
            margin-top: 22px;
            flex-wrap: wrap;
        }
        .page-banner .banner-stat-item {
            display: flex;
            align-items: baseline;
            gap: 6px;
        }
        .page-banner .banner-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 0.5px;
        }
        .page-banner .banner-stat-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ========== SECTION ========== */
        .section {
            padding: 56px 0;
        }
        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.6;
        }
        .section-header {
            margin-bottom: 28px;
        }
        .section-header.center {
            text-align: center;
        }

        /* ========== STAT CARDS GRID ========== */
        .stat-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--accent-light);
        }
        .stat-card .stat-icon-circle {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.3rem;
            background: rgba(201, 169, 110, 0.1);
            color: var(--accent-dark);
        }
        .stat-card .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1;
        }
        .stat-card .stat-unit {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--accent-dark);
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .stat-card .stat-trend {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            margin-top: 8px;
            background: #e6f7ee;
            color: #1a7a40;
        }
        .stat-card .stat-trend.down {
            background: #fde8e8;
            color: #b91c1c;
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: start;
        }
        .comparison-table-wrap {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }
        .comparison-table-wrap h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
        }
        .data-row {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .data-row:last-child {
            border-bottom: none;
        }
        .data-row .data-label {
            width: 90px;
            flex-shrink: 0;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text);
        }
        .data-row .data-bar-wrap {
            flex: 1;
            height: 22px;
            background: var(--bg);
            border-radius: var(--radius-full);
            overflow: hidden;
            position: relative;
        }
        .data-row .data-bar-fill {
            height: 100%;
            border-radius: var(--radius-full);
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            transition: width 0.6s ease;
            min-width: 22px;
        }
        .data-row .data-value {
            width: 50px;
            flex-shrink: 0;
            text-align: right;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
        }
        .comparison-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .comparison-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* ========== RANKING LIST ========== */
        .ranking-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .ranking-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }
        .ranking-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .ranking-card h3 .rank-icon {
            font-size: 1.1rem;
            color: var(--accent);
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
        }
        .rank-item:last-child {
            border-bottom: none;
        }
        .rank-item:hover {
            background: var(--bg-light);
            margin: 0 -8px;
            padding-left: 8px;
            padding-right: 8px;
            border-radius: var(--radius-sm);
        }
        .rank-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.8rem;
            flex-shrink: 0;
            background: var(--bg);
            color: var(--text-secondary);
        }
        .rank-num.top1 {
            background: #fef3c7;
            color: #b45309;
        }
        .rank-num.top2 {
            background: #e5e7eb;
            color: #4b5563;
        }
        .rank-num.top3 {
            background: #fde8d0;
            color: #92400e;
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-stat {
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .rank-value {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        /* ========== TREND SECTION ========== */
        .trend-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .trend-text h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .trend-text p {
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 12px;
            font-size: 0.95rem;
        }
        .trend-text .highlight-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .trend-text .highlight-item {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text);
        }
        .trend-text .highlight-item .fa-circle-check {
            color: #22c55e;
            flex-shrink: 0;
            margin-top: 3px;
            font-size: 0.85rem;
        }
        .trend-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .trend-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-question .faq-arrow {
            font-size: 0.7rem;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            text-align: center;
            box-shadow: var(--shadow-lg);
        }
        .cta-section h3 {
            font-size: 1.55rem;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            margin-bottom: 20px;
            line-height: 1.6;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            font-weight: 600;
            font-size: 0.93rem;
            border-radius: var(--radius-full);
            letter-spacing: 0.3px;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 2px 8px rgba(201, 169, 110, 0.4);
        }
        .btn-accent:hover {
            background: var(--accent-light);
            box-shadow: 0 4px 16px rgba(201, 169, 110, 0.5);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.35);
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.82rem;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: var(--text-muted);
            padding: 16px 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--accent-dark);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .breadcrumb .separator {
            color: var(--text-light);
        }
        .breadcrumb .current {
            color: var(--text-secondary);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: #fff;
            padding: 40px 0 20px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            padding-bottom: 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: #fff;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 16px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 0.2px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .stat-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .ranking-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .comparison-block {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .trend-block {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner {
                min-height: 260px;
            }
            .section {
                padding: 40px 0;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                width: 270px;
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay {
                display: block;
            }
            .sidebar-overlay.active {
                display: block;
                opacity: 1;
                pointer-events: auto;
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--header-mobile-height);
            }
            .mobile-header {
                display: flex;
            }
            .stat-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card {
                padding: 18px 14px;
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
            .ranking-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .page-banner {
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .banner-desc {
                font-size: 0.9rem;
            }
            .page-banner .banner-stats-row {
                gap: 16px;
            }
            .page-banner .banner-stat-num {
                font-size: 1.4rem;
            }
            .section {
                padding: 32px 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .cta-section {
                padding: 28px 18px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.25rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .comparison-table-wrap {
                padding: 16px;
            }
            .data-row .data-label {
                width: 65px;
                font-size: 0.78rem;
            }
            .data-row .data-value {
                width: 38px;
                font-size: 0.78rem;
            }
        }

        @media (max-width: 520px) {
            .stat-cards-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 14px 10px;
                border-radius: var(--radius);
            }
            .stat-card .stat-icon-circle {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .page-banner .banner-content {
                padding: 36px 0;
            }
            .page-banner {
                min-height: 180px;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .comparison-block {
                gap: 14px;
            }
            .trend-block {
                gap: 14px;
            }
            .cta-section {
                padding: 22px 14px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            .data-row .data-label {
                width: 55px;
                font-size: 0.72rem;
            }
            .data-row .data-value {
                width: 32px;
                font-size: 0.72rem;
            }
            .data-row .data-bar-wrap {
                height: 16px;
            }
        }