/* roulang page: index */
:root {
            --color-primary: #1B3A5C;
            --color-primary-dark: #0F2440;
            --color-primary-light: #2D5A85;
            --color-accent: #C8963E;
            --color-accent-light: #DDB067;
            --color-accent-dark: #A67A2E;
            --color-surface: #F7F8FA;
            --color-surface-alt: #EDEFF3;
            --color-muted: #6B7280;
            --color-text-main: #1A1A1A;
            --color-text-soft: #4B5563;
            --color-border: #E5E7EB;
            --color-border-light: #F0F1F3;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 6px;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-nav: 0 1px 6px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: #1A1A1A;
            background-color: #FFFFFF;
            margin: 0;
            padding: 0;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #FFFFFF;
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-nav);
            transition: box-shadow var(--transition-fast);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.10);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-logo {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }

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

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: #F0F4F8;
        }

        .nav-links a.active {
            color: var(--color-primary);
            font-weight: 600;
            background: #EEF3F8;
        }

        .nav-links a.nav-cta {
            background: var(--color-accent);
            color: #FFFFFF;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth);
        }

        .nav-links a.nav-cta:hover {
            background: var(--color-accent-dark);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
            color: #FFFFFF;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            color: var(--color-primary);
            font-size: 1.5rem;
            line-height: 1;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            background: #F0F4F8;
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 0;
            }
            .nav-links a {
                padding: 8px 11px;
                font-size: 0.875rem;
            }
            .nav-links a.nav-cta {
                padding: 8px 15px;
                font-size: 0.875rem;
            }
        }

        @media (max-width: 768px) {
            .nav-container {
                height: 56px;
                padding: 0 16px;
            }
            .nav-logo {
                font-size: 1.25rem;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
                border-radius: 6px;
            }
            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-links {
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                padding: 12px 16px;
                gap: 2px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.10);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: all var(--transition-smooth);
                z-index: 99;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: 8px;
            }
            .nav-links a.nav-cta {
                text-align: center;
                justify-content: center;
                margin-top: 6px;
            }
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 36, 64, 0.88) 0%, rgba(27, 58, 92, 0.78) 40%, rgba(15, 36, 64, 0.85) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            padding: 80px 20px;
            width: 100%;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 150, 62, 0.18);
            border: 1px solid rgba(200, 150, 62, 0.4);
            color: #F0D89C;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }

        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            background: #4ADE80;
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
            }
            50% {
                opacity: 0.7;
                box-shadow: 0 0 0 10px rgba(74, 222, 128, 0);
            }
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.2;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
            max-width: 700px;
        }

        .hero-title .accent-text {
            color: #E8C56D;
            position: relative;
            display: inline-block;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 640px;
            margin-bottom: 12px;
            font-weight: 400;
        }

        .hero-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            max-width: 660px;
            margin-bottom: 28px;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-primary-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth);
            border: none;
            cursor: pointer;
        }

        .btn-primary-hero:hover {
            background: var(--color-accent-dark);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
        }

        .btn-outline-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #FFFFFF;
            font-weight: 500;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .btn-outline-hero:hover {
            border-color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 480px;
            }
            .hero-content {
                padding: 50px 16px;
            }
            .hero-title {
                font-size: 2rem;
                max-width: 100%;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-buttons {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary-hero,
            .btn-outline-hero {
                width: 100%;
                justify-content: center;
                padding: 13px 20px;
                font-size: 0.95rem;
            }
            .hero-badge {
                font-size: 0.8rem;
                padding: 6px 14px;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                min-height: 420px;
            }
            .hero-title {
                font-size: 1.65rem;
            }
            .hero-content {
                padding: 36px 14px;
            }
        }

        /* Section Common */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--color-surface);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-tag {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin: 0 0 10px;
            letter-spacing: 0.02em;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--color-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 1.55rem;
            }
            .section-header p {
                font-size: 0.95rem;
            }
        }

        /* Stats Cards */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-smooth);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .stat-card:hover::before {
            transform: scaleX(1);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-number .plus {
            color: var(--color-accent);
            font-size: 1.6rem;
            font-weight: 700;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            font-weight: 500;
        }

        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .stat-label {
                font-size: 0.78rem;
            }
        }

        /* Advantage Cards */
        .adv-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .adv-card {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 32px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
            text-align: center;
        }
        .adv-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: #D0D5DD;
        }
        .adv-icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: #EEF3F8;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: var(--color-primary);
            transition: all var(--transition-smooth);
        }
        .adv-card:hover .adv-icon-wrap {
            background: var(--color-primary);
            color: #FFFFFF;
        }
        .adv-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin: 0 0 8px;
        }
        .adv-card p {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .adv-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .adv-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .adv-card {
                padding: 24px 18px;
            }
        }

        /* Brand Story */
        .story-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .story-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
        }
        .story-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .story-image:hover img {
            transform: scale(1.04);
        }
        .story-text h3 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .story-text p {
            font-size: 1rem;
            color: var(--color-text-soft);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .story-text .story-highlight {
            border-left: 3px solid var(--color-accent);
            padding-left: 16px;
            font-weight: 500;
            color: var(--color-primary);
            font-size: 1.05rem;
            margin: 16px 0;
        }

        @media (max-width: 768px) {
            .story-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .story-image {
                aspect-ratio: 16/10;
            }
            .story-text h3 {
                font-size: 1.4rem;
            }
        }

        /* Category Cards */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .cat-card {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
            cursor: pointer;
            text-decoration: none;
            display: block;
            color: inherit;
        }
        .cat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .cat-card-img {
            aspect-ratio: 16/11;
            overflow: hidden;
            position: relative;
        }
        .cat-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .cat-card:hover .cat-card-img img {
            transform: scale(1.06);
        }
        .cat-card-body {
            padding: 16px 14px;
            text-align: center;
        }
        .cat-card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin: 0;
            letter-spacing: 0.02em;
        }
        .cat-card-body span {
            font-size: 0.82rem;
            color: var(--color-muted);
            display: block;
            margin-top: 4px;
        }

        @media (max-width: 1024px) {
            .cat-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 640px) {
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .cat-card-body {
                padding: 12px 10px;
            }
            .cat-card-body h4 {
                font-size: 0.9rem;
            }
        }
        @media (max-width: 400px) {
            .cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
        }

        /* News List */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 20px 22px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
            text-decoration: none;
            color: inherit;
        }
        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #D0D5DD;
        }
        .news-date-tag {
            flex-shrink: 0;
            background: var(--color-surface);
            border-radius: var(--radius-tag);
            padding: 8px 14px;
            text-align: center;
            min-width: 70px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--color-primary);
            line-height: 1.3;
        }
        .news-date-tag .day {
            font-size: 1.5rem;
            display: block;
            font-weight: 800;
            color: var(--color-accent);
        }
        .news-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin: 0 0 6px;
        }
        .news-info p {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin: 0 0 8px;
            line-height: 1.5;
        }
        .news-info .read-more {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            transition: color var(--transition-fast);
        }
        .news-item:hover .read-more {
            color: var(--color-accent-dark);
        }

        @media (max-width: 640px) {
            .news-item {
                flex-direction: column;
                gap: 10px;
                padding: 16px;
            }
            .news-date-tag {
                display: inline-flex;
                gap: 6px;
                align-items: center;
                min-width: auto;
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .news-date-tag .day {
                font-size: 1.1rem;
                display: inline;
            }
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .testimonial-card {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 26px 22px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            position: relative;
            transition: all var(--transition-smooth);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .testimonial-card .quote-mark {
            font-size: 2.5rem;
            color: var(--color-accent);
            line-height: 1;
            opacity: 0.4;
            margin-bottom: 4px;
        }
        .testimonial-card p {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin: 0 0 14px;
        }
        .testimonial-card .author {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
        }
        .testimonial-card .author-role {
            font-size: 0.78rem;
            color: var(--color-muted);
            display: block;
        }

        @media (max-width: 768px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
        }
        .faq-item:hover {
            border-color: #D0D5DD;
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
            transition: background var(--transition-fast);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }
        .faq-question:hover {
            background: #FAFBFC;
        }
        .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
            font-size: 0.8rem;
            color: var(--color-muted);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            font-size: 0.92rem;
            color: var(--color-text-soft);
            line-height: 1.75;
            margin: 0;
        }

        @media (max-width: 520px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .faq-answer p {
                font-size: 0.85rem;
            }
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-primary);
            border-radius: 0;
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 640px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .cta-section h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .cta-btn-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 1.1rem;
            padding: 16px 36px;
            border-radius: var(--radius-btn);
            box-shadow: 0 4px 18px rgba(200, 150, 62, 0.4);
            transition: all var(--transition-smooth);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .cta-btn-large:hover {
            background: #D4A852;
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.55);
            transform: translateY(-2px);
        }

        @media (max-width: 520px) {
            .cta-section {
                padding: 40px 0;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
            .cta-btn-large {
                font-size: 0.95rem;
                padding: 14px 24px;
                width: 100%;
                justify-content: center;
            }
        }

        /* Footer */
        .site-footer {
            background: #0F1A2E;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            max-width: 1200px;
            margin: 0 auto 32px;
            padding: 0 20px;
        }
        .footer-col h4 {
            color: #FFFFFF;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
            font-size: 0.875rem;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* Focus visible */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* Smooth section entrance */
        @media (prefers-reduced-motion: no-preference) {
            .section {
                animation: fadeInUp 0.6s ease both;
            }
            @keyframes fadeInUp {
                from {
                    opacity: 0;
                    transform: translateY(24px);
                }
                to {
                    opacity: 1;
                    transform: translateY(0);
                }
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0A1628;
            --accent: #C9A945;
            --surface: #F8FAFC;
            --muted: #64748B;
            --border: #E2E8F0;
            --dark-card: #132033;
            --dark-text: #E2E8F0;
            --radius-card: 1rem;
            --radius-btn: 0.75rem;
            --radius-section: 2rem;
            --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.04);
            --shadow-elevated: 0 12px 32px rgba(0, 0, 0, 0.08);
            --shadow-card-hover: 0 20px 40px rgba(0, 0, 0, 0.12);
            --shadow-accent-glow: 0 0 20px rgba(201, 169, 69, 0.25);
            --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            background-color: #FFFFFF;
            color: #1E293B;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        .container-main {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-main {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 1rem;
            padding-bottom: 1rem;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: opacity var(--transition-base);
        }

        .logo-link:hover {
            opacity: 0.85;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent) 0%, #E5C158 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A1628;
            font-size: 1.2rem;
            font-weight: 700;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: inline-block;
            padding: 0.5rem 0.9rem;
            border-radius: 0.5rem;
            font-weight: 500;
            font-size: 0.95rem;
            color: #334155;
            transition: background var(--transition-base), color var(--transition-base);
            white-space: nowrap;
        }

        .nav-links a:hover {
            background: #F1F5F9;
            color: #0A1628;
        }

        .nav-links a.active {
            background: #0A1628;
            color: white;
            font-weight: 600;
        }

        .nav-cta {
            background: var(--accent) !important;
            color: #0A1628 !important;
            font-weight: 700 !important;
            padding: 0.5rem 1.2rem !important;
            border-radius: 2rem !important;
            box-shadow: 0 2px 8px rgba(201, 169, 69, 0.35);
            transition: all var(--transition-base) !important;
        }

        .nav-cta:hover {
            background: #A68A2E !important;
            box-shadow: 0 4px 14px rgba(201, 169, 69, 0.5) !important;
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary);
            padding: 0.25rem;
        }

        @media (max-width: 1024px) {
            .mobile-menu-btn {
                display: block;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: white;
                border-top: 1px solid var(--border);
                padding: 1rem 0;
                margin-top: 0.5rem;
                gap: 0.25rem;
            }

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

            .nav-links a {
                width: 100%;
                text-align: left;
                padding: 0.75rem 1rem;
                font-size: 1rem;
            }
        }

        /* Section styling */
        .section-spacing {
            padding-top: var(--section-spacing, 5rem);
            padding-bottom: var(--section-spacing, 5rem);
        }

        @media (max-width: 768px) {
            .section-spacing {
                padding-top: 3rem;
                padding-bottom: 3rem;
            }
        }

        .card-base {
            background: white;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-soft);
            border: 1px solid var(--border);
            transition: all var(--transition-base);
        }

        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: #0A1628;
            font-weight: 700;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 2px 10px rgba(201, 169, 69, 0.3);
            font-size: 0.95rem;
            letter-spacing: -0.01em;
        }

        .btn-primary:hover {
            background: #A68A2E;
            box-shadow: 0 6px 18px rgba(201, 169, 69, 0.45);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            font-weight: 600;
            padding: 0.7rem 1.8rem;
            border-radius: var(--radius-btn);
            background: transparent;
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: white;
        }

        .tag-accent {
            display: inline-block;
            background: rgba(201, 169, 69, 0.12);
            color: #A68A2E;
            font-weight: 600;
            font-size: 0.8rem;
            padding: 0.3rem 0.9rem;
            border-radius: 2rem;
            letter-spacing: 0.02em;
        }

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

        .page-hero {
            background: linear-gradient(135deg, #0A1628 0%, #1E3A5F 100%);
            color: white;
            padding-top: 4rem;
            padding-bottom: 4rem;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }

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

        .footer-link {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-base);
            font-size: 0.9rem;
        }

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

        .footer-logo-text {
            font-weight: 800;
            font-size: 1.4rem;
            color: white;
            letter-spacing: -0.02em;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        .bg-dark-section {
            background: #0A1628;
            color: #E2E8F0;
        }

        .match-card-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        @media (max-width: 768px) {
            .match-card-row {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1a3c5e;
            --primary-light: #2c5f8a;
            --accent: #d4a843;
            --accent-light: #e8c97a;
            --dark: #0f1f2e;
            --dark-light: #1e3347;
            --surface: #f8f9fb;
            --surface-card: #ffffff;
            --muted: #6b7c8e;
            --muted-light: #a0b0c0;
            --border: #e2e8f0;
            --border-light: #f0f4f8;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 20px;
            --radius-nav: 8px;
            --shadow-card: 0 2px 16px rgba(15, 31, 46, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(15, 31, 46, 0.12);
            --shadow-nav: 0 2px 20px rgba(15, 31, 46, 0.08);
            --shadow-btn: 0 4px 14px rgba(212, 168, 67, 0.30);
            --shadow-btn-hover: 0 6px 22px rgba(212, 168, 67, 0.45);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            background-color: #f8f9fb;
            color: #1e293b;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
        }

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

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-nav);
            transition: all var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent), #c49630);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #fff;
            font-weight: 700;
            box-shadow: 0 3px 10px rgba(212, 168, 67, 0.35);
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
            justify-content: flex-end;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #4a5568;
            border-radius: var(--radius-nav);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(26, 60, 94, 0.05);
        }

        .nav-links li a.active {
            color: var(--primary);
            background: rgba(26, 60, 94, 0.08);
            font-weight: 600;
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-cta {
            background: var(--accent) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 9px 20px !important;
            border-radius: 24px !important;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth) !important;
        }
        .nav-cta:hover {
            background: #c49630 !important;
            box-shadow: var(--shadow-btn-hover) !important;
            transform: translateY(-1px);
            color: #fff !important;
        }

        /* Mobile nav toggle */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--primary);
            padding: 6px;
            line-height: 1;
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            background: linear-gradient(160deg, #1a3c5e 0%, #0f1f2e 40%, #1e3347 100%);
            padding: 64px 0 56px;
            overflow: hidden;
            color: #fff;
        }
        .page-hero::before {
            content: '';
            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;
        }
        .page-hero .container-custom {
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(212, 168, 67, 0.2);
            color: var(--accent-light);
            border: 1px solid rgba(212, 168, 67, 0.35);
            padding: 6px 16px;
            border-radius: var(--radius-tag);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
        }
        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin: 0 0 16px;
            line-height: 1.25;
        }
        .page-hero .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 640px;
            line-height: 1.75;
            margin: 0;
        }

        /* Section通用 */
        .section-pad {
            padding: 56px 0;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--dark);
            text-align: center;
            margin: 0 0 8px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            text-align: center;
            color: var(--muted);
            font-size: 0.95rem;
            max-width: 560px;
            margin: 0 auto 36px;
            line-height: 1.6;
        }

        /* 对比卡片 */
        .compare-card {
            background: var(--surface-card);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
        }
        .compare-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #dce5f0;
        }
        .company-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.01em;
        }
        .tag-william {
            background: #e8f0fe;
            color: #1a56db;
        }
        .tag-bet365 {
            background: #e6f7e6;
            color: #0d7c3b;
        }
        .tag-macau {
            background: #fef3e5;
            color: #b85c10;
        }
        .tag-pinnacle {
            background: #f0e6f9;
            color: #6d28d9;
        }
        .odds-value {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--dark);
            font-variant-numeric: tabular-nums;
            font-family: "SF Mono", "Consolas", "Menlo", monospace;
        }
        .odds-change-up {
            color: #0d7c3b;
            font-weight: 600;
            font-size: 0.85rem;
        }
        .odds-change-down {
            color: #c53030;
            font-weight: 600;
            font-size: 0.85rem;
        }
        .odds-change-stable {
            color: #6b7c8e;
            font-weight: 500;
            font-size: 0.85rem;
        }

        /* 表格风格对比区块 */
        .compare-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            background: #fff;
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 0.9rem;
        }
        .compare-table thead th {
            background: #f1f5f9;
            padding: 14px 16px;
            text-align: center;
            font-weight: 600;
            color: var(--dark);
            white-space: nowrap;
            border-bottom: 2px solid var(--border);
            font-size: 0.85rem;
            letter-spacing: 0.01em;
        }
        .compare-table tbody td {
            padding: 13px 16px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            color: #334155;
            white-space: nowrap;
        }
        .compare-table tbody tr:hover {
            background: #fafcfd;
        }
        .highlight-cell {
            background: #fffdf5 !important;
            font-weight: 700;
            color: #b85c10 !important;
        }
        .match-name-cell {
            text-align: left !important;
            font-weight: 500;
            color: var(--dark);
        }

        /* 工具卡片 */
        .tool-card {
            background: var(--surface-card);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition-smooth);
            cursor: default;
        }
        .tool-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #dce5f0;
        }
        .tool-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 14px;
        }
        .tool-icon.blue {
            background: #e8f0fe;
            color: #1a56db;
        }
        .tool-icon.green {
            background: #e6f7e6;
            color: #0d7c3b;
        }
        .tool-icon.amber {
            background: #fef3e5;
            color: #b85c10;
        }
        .tool-icon.purple {
            background: #f0e6f9;
            color: #6d28d9;
        }

        /* FAQ */
        .faq-item {
            background: var(--surface-card);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            margin-bottom: 12px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: #dce5f0;
            box-shadow: var(--shadow-card-hover);
        }
        .faq-q {
            font-weight: 700;
            color: var(--dark);
            font-size: 1rem;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.5;
        }
        .faq-q .faq-icon {
            color: var(--accent);
            flex-shrink: 0;
            font-size: 1.1rem;
            margin-top: 2px;
        }
        .faq-a {
            color: #4a5568;
            font-size: 0.9rem;
            line-height: 1.75;
            margin-top: 10px;
            padding-left: 26px;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item.open {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.08);
        }

        /* CTA */
        .cta-section-alt {
            background: linear-gradient(150deg, #1a3c5e 0%, #0f1f2e 50%, #1e3347 100%);
            border-radius: 24px;
            padding: 44px 36px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section-alt::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-section-alt>* {
            position: relative;
            z-index: 1;
        }
        .cta-btn-lg {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 28px;
            font-size: 1.05rem;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }
        .cta-btn-lg:hover {
            background: #c49630;
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
            color: #fff;
        }
        .cta-btn-outline {
            display: inline-block;
            background: transparent;
            color: #fff;
            font-weight: 600;
            padding: 13px 30px;
            border-radius: 28px;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }
        .cta-btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: #0f1f2e;
            color: #cbd5e0;
            padding: 48px 0 24px;
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 32px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 12px;
            letter-spacing: 0.01em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 7px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            max-width: 1200px;
            margin: 28px auto 0;
            padding: 20px 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.8rem;
            line-height: 1.6;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .section-pad {
                padding: 40px 0;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                gap: 2px;
                box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
                border-radius: 0 0 16px 16px;
                z-index: 99;
                border: 1px solid var(--border-light);
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links li a {
                padding: 12px 16px;
                border-radius: 8px;
                text-align: center;
            }
            .mobile-toggle {
                display: block;
            }
            .page-hero {
                padding: 40px 0 36px;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .page-hero .hero-desc {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .container-custom {
                padding: 0 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .compare-table-wrap {
                border-radius: 12px;
            }
            .cta-section-alt {
                padding: 28px 20px;
                border-radius: 16px;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.35rem;
            }
            .logo-text {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
                border-radius: 8px;
            }
            .section-pad {
                padding: 28px 0;
            }
            .compare-card {
                padding: 16px;
            }
            .odds-value {
                font-size: 1.3rem;
            }
        }

/* roulang page: category1 */
:root {
            --brand-600: #1e3a5f;
            --brand-700: #162d4a;
            --brand-800: #0f2036;
            --gold-500: #b8945a;
            --gold-400: #c5a572;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4a4a;
            --text-muted: #787878;
            --bg-warm: #fdfbf7;
            --bg-light: #f8f9fb;
            --border-light: #e8eaef;
            --radius-lg: 0.875rem;
            --radius-xl: 1.125rem;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 2px 8px rgba(0, 0, 0, 0.08), 0 8px 28px rgba(0, 0, 0, 0.06);
            --transition-base: 0.22s ease;
        }

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

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

        body {
            margin: 0;
            font-family: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: #ffffff;
            min-height: 100vh;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03), 0 4px 12px rgba(0, 0, 0, 0.03);
            transition: box-shadow var(--transition-base);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            height: 62px;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--brand-700);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .logo-text .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
            border-radius: 8px;
            color: #fff;
            font-size: 1.05rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.85rem;
            border-radius: 0.5rem;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--brand-700);
            background: rgba(30, 58, 95, 0.05);
        }

        .nav-links li a.active {
            color: var(--brand-700);
            font-weight: 600;
            background: rgba(30, 58, 95, 0.07);
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2.5px;
            background: var(--brand-600);
            border-radius: 2px;
        }

        .nav-cta {
            background: var(--brand-600) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 0.5rem 1.1rem !important;
            border-radius: 0.5rem !important;
            transition: all var(--transition-base) !important;
            white-space: nowrap;
            margin-left: 0.4rem;
        }

        .nav-cta:hover {
            background: var(--brand-700) !important;
            color: #fff !important;
            box-shadow: 0 2px 10px rgba(30, 58, 95, 0.25);
            transform: translateY(-1px);
        }

        .nav-cta::after {
            display: none !important;
        }

        /* Mobile menu button */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            padding: 0.4rem;
            cursor: pointer;
            color: var(--text-primary);
            font-size: 1.5rem;
            line-height: 1;
            z-index: 1001;
        }

        @media (max-width: 920px) {
            .menu-toggle {
                display: block;
            }

            .nav-links {
                position: fixed;
                top: 62px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 0.6rem 1rem;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.28s ease;
                z-index: 999;
                max-height: 80vh;
                overflow-y: auto;
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .nav-links li a {
                padding: 0.7rem 0.9rem;
                border-radius: 0.5rem;
                font-size: 0.95rem;
                display: block;
                width: 100%;
            }

            .nav-links li a.active::after {
                display: none;
            }

            .nav-links .nav-cta {
                margin-left: 0;
                text-align: center;
                justify-content: center;
                margin-top: 0.3rem;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 1rem;
                height: 56px;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .logo-text .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.9rem;
                border-radius: 6px;
            }
            .nav-links {
                top: 56px;
            }
        }

        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            background: url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: #fff;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 32, 54, 0.78) 0%, rgba(22, 45, 74, 0.85) 60%, rgba(30, 58, 95, 0.9) 100%);
            z-index: 1;
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: 2rem 1.5rem;
            max-width: 700px;
        }

        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 0.82rem;
            font-weight: 500;
            padding: 0.35rem 0.9rem;
            border-radius: 2rem;
            margin-bottom: 0.9rem;
            letter-spacing: 0.02em;
        }

        .page-banner h1 {
            font-size: 2.5rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin: 0 0 0.7rem;
            line-height: 1.25;
        }

        .page-banner .banner-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 540px;
            margin: 0 auto;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-wrap: wrap;
            justify-content: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 0.8rem;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }
        .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .breadcrumb .sep {
            opacity: 0.5;
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .page-banner {
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner .banner-desc {
                font-size: 0.88rem;
            }
            .page-banner .banner-badge {
                font-size: 0.75rem;
                padding: 0.28rem 0.7rem;
            }
        }

        /* ===== Section Common ===== */
        .section-container {
            max-width: 1160px;
            margin: 0 auto;
            padding: 3.5rem 1.5rem;
        }

        .section-header {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .section-header .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--gold-500);
            margin-bottom: 0.5rem;
        }
        .section-header h2 {
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--brand-800);
            margin: 0 0 0.6rem;
            letter-spacing: -0.01em;
        }
        .section-header .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section-container {
                padding: 2.5rem 1.2rem;
            }
            .section-header h2 {
                font-size: 1.55rem;
            }
        }

        /* ===== Cards ===== */
        .info-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.6rem 1.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .info-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: #d5dae3;
        }
        .info-card .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 1rem;
            flex-shrink: 0;
        }
        .info-card h3 {
            font-size: 1.1rem;
            font-weight: 650;
            color: var(--brand-800);
            margin: 0 0 0.5rem;
        }
        .info-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
            flex-grow: 1;
        }
        .info-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: 1rem;
            margin-top: 0.8rem;
            align-self: flex-start;
        }

        .card-icon-blue {
            background: #e8f0fa;
            color: var(--brand-600);
        }
        .card-icon-gold {
            background: #f9f3e8;
            color: var(--gold-500);
        }
        .card-icon-teal {
            background: #e6f7f4;
            color: #2d8a7b;
        }
        .card-icon-rose {
            background: #fdf0f0;
            color: #b84444;
        }

        .tag-blue {
            background: #e8f0fa;
            color: var(--brand-600);
        }
        .tag-gold {
            background: #f9f3e8;
            color: #8a6939;
        }
        .tag-teal {
            background: #e6f7f4;
            color: #2d8a7b;
        }

        /* ===== Image card ===== */
        .image-card {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .image-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .image-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .image-card .card-body {
            padding: 1.2rem 1.3rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .image-card .card-body h3 {
            font-size: 1.05rem;
            font-weight: 650;
            color: var(--brand-800);
            margin: 0 0 0.4rem;
        }
        .image-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
            flex-grow: 1;
        }

        @media (max-width: 768px) {
            .image-card img {
                height: 160px;
            }
        }

        /* ===== Data stat block ===== */
        .stat-block {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
            justify-content: center;
        }
        .stat-item {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 1.4rem 1.8rem;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            min-width: 140px;
            flex: 1 1 140px;
            max-width: 200px;
        }
        .stat-item .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-700);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }
        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: #cdd3dd;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 1.1rem 1.3rem;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--brand-800);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
            line-height: 1.45;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: #e8f0fa;
            color: var(--brand-600);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            transition: all var(--transition-base);
            font-weight: 700;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.3rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.3rem 1.1rem;
        }
        .faq-item.open .faq-icon {
            background: var(--brand-600);
            color: #fff;
            transform: rotate(45deg);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(160deg, var(--brand-700) 0%, var(--brand-800) 100%);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.7rem;
            font-weight: 700;
            margin: 0 0 0.6rem;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 auto 1.5rem;
            max-width: 500px;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }
        .cta-btn {
            display: inline-block;
            background: #fff;
            color: var(--brand-700);
            font-weight: 650;
            padding: 0.75rem 2rem;
            border-radius: 0.5rem;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.15);
        }
        .cta-btn:hover {
            background: #f0f2f5;
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f2036;
            color: #fff;
            padding: 3rem 1.5rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            max-width: 1160px;
            margin: 0 auto;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 650;
            margin: 0 0 0.8rem;
            color: #fff;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.45rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: #fff;
        }
        .footer-bottom {
            max-width: 1160px;
            margin: 2rem auto 0;
            padding-top: 1.2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            text-align: center;
        }
        .footer-bottom p {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.8rem;
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .site-footer {
                padding: 2rem 1rem 1rem;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #0f2347;
            --primary-light: #1a3a6b;
            --accent: #c8963e;
            --accent-light: #e0b868;
            --bg: #f8f9fb;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-soft: #5a5f72;
            --text-muted: #8b8fa3;
            --border: #e2e6ef;
            --border-light: #eef1f6;
            --shadow-sm: 0 1px 3px rgba(15, 35, 71, 0.06);
            --shadow: 0 4px 16px rgba(15, 35, 71, 0.08);
            --shadow-lg: 0 12px 32px rgba(15, 35, 71, 0.12);
            --shadow-xl: 0 20px 48px rgba(15, 35, 71, 0.16);
            --radius-sm: 0.5rem;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            background: var(--bg);
            color: var(--text);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* Header & Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 1.5rem;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.01em;
        }
        .logo-link i {
            color: var(--accent);
            font-size: 1.4rem;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.85rem;
            border-radius: var(--radius-sm);
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--text-soft);
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(15, 35, 71, 0.04);
        }
        .nav-links li a.active {
            color: var(--primary);
            background: rgba(15, 35, 71, 0.07);
            font-weight: 600;
            box-shadow: inset 0 -2px 0 var(--accent);
        }
        .nav-cta {
            background: var(--accent) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 0.5rem 1.1rem !important;
            border-radius: 2rem !important;
            transition: all var(--transition) !important;
            letter-spacing: 0.02em !important;
            box-shadow: 0 2px 8px rgba(200, 150, 62, 0.3) !important;
            margin-left: 0.25rem;
        }
        .nav-cta:hover {
            background: #b8862d !important;
            color: #fff !important;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.45) !important;
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 0.35rem;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .hamburger:hover {
            background: rgba(15, 35, 71, 0.06);
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, #0f2347 0%, #1a3a6b 40%, #0d1f3d 100%);
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            padding: 4rem 0 3.5rem;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 35, 71, 0.55) 0%, rgba(15, 35, 71, 0.82) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(200, 150, 62, 0.2);
            border: 1px solid rgba(200, 150, 62, 0.4);
            color: var(--accent-light);
            padding: 0.35rem 1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 1rem;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
            line-height: 1.25;
        }
        .page-banner .banner-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* Section */
        .section {
            padding: 3.5rem 0;
        }
        .section-sm {
            padding: 2.5rem 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .section-title h2 {
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
        }
        .section-title .title-line {
            display: inline-block;
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .section-title p {
            color: var(--text-soft);
            font-size: 1.02rem;
            margin-top: 0.6rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Cards */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border);
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-body {
            padding: 1.25rem 1.25rem 1.4rem;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.2rem 0.65rem;
            border-radius: 1rem;
            letter-spacing: 0.03em;
            margin-bottom: 0.5rem;
        }
        .tag-accent {
            background: rgba(200, 150, 62, 0.1);
            color: #8b6914;
        }
        .tag-blue {
            background: rgba(15, 35, 71, 0.08);
            color: var(--primary);
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.4rem;
            line-height: 1.35;
        }
        .card-body p {
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.6;
        }
        .card-meta {
            display: flex;
            gap: 1rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 0.75rem;
            flex-wrap: wrap;
        }
        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        /* Stat Cards */
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 1.5rem 1.25rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-1px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }
        .stat-number .accent {
            color: var(--accent);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-soft);
            margin-top: 0.35rem;
            font-weight: 500;
        }

        /* Info Block */
        .info-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }
        .info-block.reverse {
            direction: rtl;
        }
        .info-block.reverse .info-text {
            direction: ltr;
        }
        .info-block .info-img {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4 / 3;
        }
        .info-block .info-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .info-text h3 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }
        .info-text p {
            color: var(--text-soft);
            line-height: 1.75;
            font-size: 0.98rem;
            margin-bottom: 0.8rem;
        }
        .info-text ul {
            list-style: none;
            padding: 0;
        }
        .info-text ul li {
            padding: 0.4rem 0;
            font-size: 0.95rem;
            color: var(--text-soft);
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
        }
        .info-text ul li i {
            color: var(--accent);
            margin-top: 0.25rem;
            flex-shrink: 0;
        }

        /* Table-like list */
        .data-list {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .data-list-row {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            padding: 0.9rem 1.25rem;
            align-items: center;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.93rem;
            transition: background var(--transition);
        }
        .data-list-row:last-child {
            border-bottom: none;
        }
        .data-list-row.header-row {
            background: rgba(15, 35, 71, 0.03);
            font-weight: 600;
            color: var(--primary);
            font-size: 0.85rem;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        .data-list-row:hover:not(.header-row) {
            background: rgba(200, 150, 62, 0.03);
        }
        .data-list-row .col-league {
            font-weight: 500;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .data-list-row .col-odds {
            font-weight: 600;
            color: var(--primary);
        }
        .data-list-row .col-change {
            font-weight: 500;
        }
        .change-up {
            color: #c0392b;
        }
        .change-down {
            color: #27ae60;
        }
        .change-stable {
            color: var(--text-muted);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 1.1rem 1.3rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 1.3rem 1.1rem;
            font-size: 0.92rem;
            color: var(--text-soft);
            line-height: 1.75;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #0f2347 0%, #1a3a6b 100%);
            padding: 3rem 0;
            text-align: center;
            border-radius: var(--radius-xl);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-2.webp') center/cover;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-section .cta-inner {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 0.6rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 1.5rem;
            font-size: 1.02rem;
        }
        .btn-cta-large {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            padding: 0.85rem 2.2rem;
            border-radius: 2.5rem;
            font-size: 1.05rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            box-shadow: 0 6px 20px rgba(200, 150, 62, 0.4);
            border: none;
            cursor: pointer;
        }
        .btn-cta-large:hover {
            background: #b8862d;
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: #0a1628;
            color: #e0e4ec;
            padding: 3rem 0 1.5rem;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: #fff;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
            font-size: 0.88rem;
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-logo-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.6rem;
            letter-spacing: -0.01em;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.25rem;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.8rem;
            line-height: 1.6;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .info-block {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .info-block.reverse {
                direction: ltr;
            }
            .info-block .info-img {
                aspect-ratio: 16 / 9;
                max-height: 320px;
            }
            .data-list-row {
                grid-template-columns: 1.3fr 1fr 1fr 1fr;
                font-size: 0.85rem;
                padding: 0.75rem 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 0.75rem 1rem;
                gap: 0.2rem;
                border-bottom: 2px solid var(--border-light);
                box-shadow: var(--shadow-lg);
                z-index: 99;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                width: 100%;
                padding: 0.7rem 1rem;
                border-radius: var(--radius-sm);
                font-size: 0.95rem;
            }
            .nav-cta {
                margin-left: 0;
                text-align: center;
                justify-content: center;
                margin-top: 0.3rem;
            }
            .hamburger {
                display: block;
            }
            .page-banner {
                padding: 2.5rem 0 2rem;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .banner-sub {
                font-size: 0.95rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .data-list-row {
                grid-template-columns: 1fr 1fr 1fr;
                font-size: 0.8rem;
                gap: 0.3rem;
                padding: 0.6rem 0.8rem;
            }
            .data-list-row .col-change {
                display: none;
            }
            .data-list-row.header-row .col-change {
                display: block;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.2rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 56px;
            }
            .logo-link {
                font-size: 1.05rem;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .section-title h2 {
                font-size: 1.4rem;
            }
            .card-body h3 {
                font-size: 1rem;
            }
            .data-list-row {
                grid-template-columns: 1.2fr 1fr;
                font-size: 0.78rem;
                padding: 0.5rem 0.6rem;
            }
            .data-list-row .col-odds {
                text-align: right;
            }
            .data-list-row .col-change,
            .data-list-row.header-row .col-change {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .info-text h3 {
                font-size: 1.25rem;
            }
            .btn-cta-large {
                padding: 0.7rem 1.6rem;
                font-size: 0.95rem;
            }
            .stat-card {
                padding: 1rem 0.8rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 0.9rem 1rem;
            }
            .container {
                padding-left: 0.9rem;
                padding-right: 0.9rem;
            }
        }

/* roulang page: category4 */
/* ===== 设计变量补充 ===== */
        :root {
            --color-primary: #1a2b4c;
            --color-primary-light: #243860;
            --color-accent: #c9a96e;
            --color-accent-light: #d4b87f;
            --color-accent-dark: #b8944f;
            --color-soft: #f8f9fa;
            --color-soft-alt: #f0f2f5;
            --color-muted: #6b7280;
            --color-text-main: #1a1a1a;
            --color-text-soft: #4a4a4a;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.07);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-nav: 0 1px 0 rgba(0, 0, 0, 0.06);
            --shadow-btn: 0 4px 14px rgba(26, 43, 76, 0.25);
            --transition-base: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.7;
            color: var(--color-text-main);
            background: #ffffff;
            min-width: 320px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        input {
            font-family: inherit;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (min-width: 1280px) {
            .container-custom {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #ffffff;
            border-bottom: 1px solid #e8eaed;
            box-shadow: var(--shadow-nav);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-link:hover {
            color: var(--color-accent-dark);
        }
        .logo-icon {
            font-size: 1.5rem;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }
        .nav-links li a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: 6px;
            white-space: nowrap;
            transition: var(--transition-base);
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--color-primary);
            background: rgba(26, 43, 76, 0.04);
        }
        .nav-links li a.active {
            color: var(--color-accent-dark);
            font-weight: 600;
            background: rgba(201, 169, 110, 0.08);
        }
        .nav-cta {
            display: inline-block !important;
            padding: 9px 18px !important;
            background: var(--color-accent) !important;
            color: #ffffff !important;
            font-weight: 600 !important;
            border-radius: var(--radius-btn) !important;
            transition: var(--transition-base) !important;
            box-shadow: var(--shadow-btn);
            font-size: 0.85rem !important;
            letter-spacing: 0.01em;
        }
        .nav-cta:hover {
            background: var(--color-accent-dark) !important;
            box-shadow: 0 6px 20px rgba(26, 43, 76, 0.35) !important;
            transform: translateY(-1px);
            color: #ffffff !important;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            flex-direction: column;
            gap: 5px;
            z-index: 110;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: var(--transition-base);
        }
        .hamburger.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== 板块间距 ===== */
        .section-pad {
            padding: 60px 0;
        }
        @media (min-width: 768px) {
            .section-pad {
                padding: 80px 0;
            }
        }
        @media (min-width: 1024px) {
            .section-pad {
                padding: 96px 0;
            }
        }

        /* ===== 卡片 ===== */
        .card-guide {
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
            border: 1px solid #eef0f3;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-guide:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #e0d5c0;
        }
        .card-guide-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: #e8eaed;
        }
        .card-guide-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-guide-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
            width: fit-content;
        }
        .tag-beginner {
            background: #e8f5e9;
            color: #2e7d32;
        }
        .tag-advanced {
            background: #fff3e0;
            color: #e65100;
        }
        .tag-popular {
            background: #e3f2fd;
            color: #1565c0;
        }
        .tag-expert {
            background: #fce4ec;
            color: #c62828;
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            background: var(--color-accent);
            color: #ffffff;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: var(--transition-base);
            box-shadow: var(--shadow-btn);
            font-size: 0.95rem;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 6px 22px rgba(26, 43, 76, 0.38);
            transform: translateY(-2px);
            color: #ffffff;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            border: 2px solid var(--color-primary);
            color: var(--color-primary);
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: var(--transition-base);
            font-size: 0.95rem;
            letter-spacing: 0.01em;
            white-space: nowrap;
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid #e8eaed;
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
            background: #ffffff;
        }
        .faq-item:hover {
            border-color: #d4c8a8;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text-main);
            background: #fafbfc;
            border: none;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: var(--transition-base);
            letter-spacing: 0.01em;
        }
        .faq-question:hover {
            background: #f0f2f5;
            color: var(--color-primary);
        }
        .faq-arrow {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            transition: transform 0.3s ease;
            color: var(--color-muted);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-accent-dark);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 22px;
            color: var(--color-text-soft);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 16px 22px 20px;
        }

        /* ===== 误区警示卡 ===== */
        .warning-card {
            background: #fffdf7;
            border: 1px solid #f0e4c8;
            border-left: 4px solid #e6a817;
            border-radius: 10px;
            padding: 18px 22px;
            transition: var(--transition-base);
        }
        .warning-card:hover {
            border-left-color: #c9a96e;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #111827;
            color: #e5e7eb;
            padding: 48px 0 0;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1.2fr;
                gap: 40px;
            }
        }
        .footer-col h4 {
            color: #ffffff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition-base);
            font-size: 0.85rem;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-logo-text {
            font-weight: 800;
            font-size: 1.2rem;
            color: #ffffff;
            margin-bottom: 8px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 36px;
            padding: 20px;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.78rem;
            line-height: 1.7;
        }

        /* ===== Banner 遮罩 ===== */
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 43, 76, 0.88) 0%, rgba(26, 43, 76, 0.72) 40%, rgba(0, 0, 0, 0.55) 100%);
            z-index: 1;
        }

        /* ===== 统计数字块 ===== */
        .stat-block {
            text-align: center;
            padding: 20px 16px;
            border-radius: 10px;
            background: #fafbfc;
            border: 1px solid #eef0f3;
            transition: var(--transition-base);
        }
        .stat-block:hover {
            background: #ffffff;
            box-shadow: var(--shadow-card);
            border-color: #e0d5c0;
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-muted);
            margin-top: 4px;
        }

        /* ===== 响应式导航 ===== */
        @media (max-width: 1023px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: #ffffff;
                flex-direction: column;
                align-items: flex-start;
                padding: 80px 28px 32px;
                gap: 8px;
                box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
                transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 105;
                overflow-y: auto;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links li a {
                display: block;
                width: 100%;
                padding: 12px 16px;
                font-size: 0.95rem;
            }
            .nav-cta {
                text-align: center;
                margin-top: 8px;
                width: 100%;
                display: block !important;
            }
            .hamburger {
                display: flex;
            }
            .mobile-overlay {
                display: none;
                position: fixed;
                inset: 0;
                background: rgba(0, 0, 0, 0.45);
                z-index: 100;
            }
            .mobile-overlay.show {
                display: block;
            }
        }
        @media (min-width: 1024px) {
            .hamburger {
                display: none;
            }
            .mobile-overlay {
                display: none !important;
            }
            .nav-links {
                position: static;
                flex-direction: row;
                width: auto;
                height: auto;
                background: transparent;
                box-shadow: none;
                padding: 0;
                overflow: visible;
            }
        }

        /* ===== 板块标题 ===== */
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-primary);
            text-align: center;
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2.1rem;
            }
        }
        .section-subtitle {
            text-align: center;
            color: var(--color-muted);
            font-size: 1rem;
            max-width: 640px;
            margin: 0 auto 40px;
            line-height: 1.7;
        }
        @media (min-width: 768px) {
            .section-subtitle {
                margin-bottom: 52px;
            }
        }

        /* ===== 分隔线 ===== */
        .divider-accent {
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
            margin: 14px auto 20px;
        }

        /* 焦点可见轮廓 */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }