/* roulang page: index */
:root {
            --color-dark: #0f1f3d;
            --color-navy: #13294b;
            --color-blue: #1a3a5c;
            --color-gold: #c8963e;
            --color-gold-light: #d4a853;
            --color-cream: #f8f5f0;
            --color-gray: #6b7280;
            --color-light: #f8f9fa;
            --color-border: #e5e7eb;
            --color-text: #1a1a1a;
            --color-subtle: #6b7280;
            --color-white: #ffffff;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-stat: 16px;
            --radius-img: 12px;
            --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 8px rgba(0, 0, 0, 0.06);
            --shadow-btn: 0 4px 14px rgba(200, 150, 62, 0.30);
            --shadow-stat: 0 4px 20px rgba(15, 31, 61, 0.08);
            --transition-base: all 0.28s 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", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-white);
            overflow-x: hidden;
        }

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

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

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

        input,
        button {
            outline: none;
            border: none;
            font-family: inherit;
        }

        .container-custom {
            max-width: 1220px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 顶部信息条 */
        .top-bar {
            background-color: var(--color-navy);
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.82rem;
            padding: 7px 0;
            letter-spacing: 0.02em;
        }
        .top-bar a {
            color: rgba(255, 255, 255, 0.85);
        }
        .top-bar a:hover {
            color: var(--color-gold-light);
        }

        /* 主导航 */
        .main-header {
            background-color: var(--color-white);
            box-shadow: var(--shadow-nav);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: var(--transition-base);
        }
        .nav-logo {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: 0.03em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text);
            padding: 8px 15px;
            border-radius: 8px;
            transition: var(--transition-base);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: var(--color-gold);
            background-color: rgba(200, 150, 62, 0.06);
        }
        .nav-link.active {
            color: var(--color-gold);
            font-weight: 600;
            background-color: rgba(200, 150, 62, 0.08);
        }
        .nav-cta-btn {
            background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
            color: #fff;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 0.93rem;
            transition: var(--transition-base);
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(200, 150, 62, 0.40);
            background: linear-gradient(135deg, var(--color-gold-light), #e0b860);
        }

        /* 移动端菜单按钮 */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--color-dark);
            cursor: pointer;
            padding: 6px;
            line-height: 1;
        }
        @media (max-width: 1024px) {
            .mobile-menu-toggle {
                display: block;
            }
            .nav-desktop-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 12px 0;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.10);
                border-radius: 0 0 16px 16px;
                z-index: 999;
            }
            .nav-desktop-links.open {
                display: flex;
            }
            .nav-desktop-links .nav-link {
                padding: 14px 24px;
                border-radius: 0;
                font-size: 1rem;
            }
            .nav-desktop-links .nav-cta-btn {
                margin: 8px 24px;
                display: inline-block;
                text-align: center;
                width: calc(100% - 48px);
            }
        }

        /* Hero */
        .hero-section {
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            min-height: 600px;
            display: flex;
            align-items: center;
            color: #fff;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 31, 61, 0.88) 0%, rgba(26, 58, 92, 0.75) 50%, rgba(15, 31, 61, 0.82) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(200, 150, 62, 0.85);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.30);
        }
        .hero-desc {
            font-size: 1.15rem;
            line-height: 1.8;
            opacity: 0.93;
            margin-bottom: 28px;
        }
        .hero-btn-primary {
            display: inline-block;
            background: linear-gradient(135deg, #c8963e, #d4a853);
            color: #fff;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-size: 1.05rem;
            letter-spacing: 0.02em;
            transition: var(--transition-base);
            box-shadow: var(--shadow-btn);
        }
        .hero-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(200, 150, 62, 0.45);
            background: linear-gradient(135deg, #d4a853, #e0b860);
        }
        .hero-btn-secondary {
            display: inline-block;
            background: transparent;
            color: #fff;
            font-weight: 500;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            font-size: 1.05rem;
            letter-spacing: 0.02em;
            border: 2px solid rgba(255, 255, 255, 0.6);
            transition: var(--transition-base);
            margin-left: 12px;
        }
        .hero-btn-secondary:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.10);
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: 480px;
                text-align: center;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-btn-secondary {
                margin-left: 0;
                margin-top: 10px;
            }
            .hero-content {
                max-width: 100%;
            }
        }

        /* 板块通用 */
        .section-padding {
            padding: 70px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 44px 0;
            }
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
            text-align: center;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-subtle);
            text-align: center;
            margin-bottom: 40px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-accent {
            display: block;
            width: 48px;
            height: 4px;
            background: var(--color-gold);
            border-radius: 2px;
            margin: 0 auto 18px;
        }

        /* 统计卡片 */
        .stat-card {
            background: #fff;
            border-radius: var(--radius-stat);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-stat);
            transition: var(--transition-base);
            border: 1px solid var(--color-border);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-gold-light);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-gold);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--color-subtle);
            margin-top: 6px;
        }

        /* 优势卡片 */
        .advantage-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 32px 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            border: 1px solid transparent;
            text-align: center;
        }
        .advantage-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--color-gold-light);
        }
        .advantage-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(200, 150, 62, 0.12), rgba(212, 168, 83, 0.18));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: var(--color-gold);
        }

        /* 分类卡片 */
        .category-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            border: 1px solid var(--color-border);
            display: block;
        }
        .category-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-gold-light);
        }
        .category-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .category-card-body {
            padding: 20px;
        }
        .category-card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-dark);
            margin-bottom: 6px;
        }
        .category-card-desc {
            font-size: 0.9rem;
            color: var(--color-subtle);
            line-height: 1.6;
        }

        /* 品牌故事 */
        .brand-story-block {
            background: var(--color-cream);
            border-radius: var(--radius-stat);
            padding: 44px 36px;
            display: flex;
            gap: 36px;
            align-items: center;
            flex-wrap: wrap;
        }
        .brand-story-img {
            flex: 0 0 280px;
            border-radius: var(--radius-img);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .brand-story-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 220px;
        }
        .brand-story-text {
            flex: 1;
            min-width: 260px;
        }
        .brand-story-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 14px;
        }
        .brand-story-text p {
            color: var(--color-text);
            line-height: 1.85;
            font-size: 0.98rem;
            margin-bottom: 10px;
        }
        @media (max-width: 768px) {
            .brand-story-block {
                flex-direction: column;
                padding: 28px 20px;
            }
            .brand-story-img {
                flex: 0 0 auto;
                width: 100%;
                max-width: 320px;
                margin: 0 auto;
            }
        }

        /* 赛事卡片 */
        .match-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: var(--transition-base);
        }
        .match-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-gold-light);
            transform: translateY(-2px);
        }
        .match-tag {
            display: inline-block;
            background: rgba(200, 150, 62, 0.13);
            color: var(--color-gold);
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        /* 评价卡片 */
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px 22px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: var(--transition-base);
            text-align: center;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .testimonial-avatar {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--color-gold);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 12px;
        }
        .testimonial-stars {
            color: #f0b90b;
            font-size: 0.9rem;
            margin-bottom: 8px;
        }

        /* 新闻列表 */
        .news-item {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--color-border);
            transition: var(--transition-base);
            align-items: flex-start;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            color: var(--color-gold);
        }
        .news-date {
            flex-shrink: 0;
            background: var(--color-navy);
            color: #fff;
            padding: 6px 12px;
            border-radius: 8px;
            font-size: 0.8rem;
            text-align: center;
            min-width: 56px;
            font-weight: 500;
            line-height: 1.2;
        }
        .news-content h4 {
            font-weight: 600;
            color: var(--color-dark);
            margin-bottom: 4px;
            font-size: 1rem;
        }
        .news-content p {
            font-size: 0.88rem;
            color: var(--color-subtle);
            line-height: 1.5;
            margin: 0;
        }
        .news-readmore {
            display: inline-block;
            color: var(--color-gold);
            font-weight: 500;
            font-size: 0.85rem;
            margin-top: 6px;
            transition: var(--transition-base);
        }
        .news-readmore:hover {
            color: var(--color-gold-light);
            text-decoration: underline;
        }
        @media (max-width: 520px) {
            .news-item {
                flex-direction: column;
                gap: 8px;
            }
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--color-gold-light);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            padding: 18px 20px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-dark);
            font-size: 1rem;
            user-select: none;
            transition: var(--transition-base);
            background: #fafbfc;
        }
        .faq-question:hover {
            color: var(--color-gold);
        }
        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.93rem;
            color: var(--color-subtle);
            line-height: 1.75;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question {
            color: var(--color-gold);
            background: rgba(200, 150, 62, 0.04);
        }
        .faq-arrow {
            transition: transform 0.3s ease;
            font-size: 0.8rem;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--color-dark), var(--color-navy));
            color: #fff;
            text-align: center;
            border-radius: var(--radius-stat);
            padding: 50px 30px;
            margin: 0 24px;
        }
        .cta-section h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btn-large {
            display: inline-block;
            background: linear-gradient(135deg, #c8963e, #d4a853);
            color: #fff;
            font-weight: 600;
            padding: 15px 36px;
            border-radius: var(--radius-btn);
            font-size: 1.1rem;
            letter-spacing: 0.02em;
            transition: var(--transition-base);
            box-shadow: var(--shadow-btn);
        }
        .cta-btn-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(200, 150, 62, 0.50);
        }

        /* 页脚 */
        .site-footer {
            background: var(--color-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 44px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 28px;
            margin-bottom: 28px;
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 12px;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.85rem;
            padding: 4px 0;
            transition: var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--color-gold-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-logo-text {
            font-weight: 700;
            color: #fff;
            font-size: 1.2rem;
            letter-spacing: 0.03em;
            margin-bottom: 8px;
            display: inline-block;
        }

        /* 合作伙伴 */
        .partner-item {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 20px 16px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            text-align: center;
            font-weight: 600;
            color: var(--color-dark);
            transition: var(--transition-base);
            font-size: 0.95rem;
        }
        .partner-item:hover {
            border-color: var(--color-gold-light);
            box-shadow: var(--shadow-card-hover);
            color: var(--color-gold);
        }

        /* 聚焦状态 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* 分隔线 */
        .divider {
            height: 1px;
            background: var(--color-border);
            margin: 0;
            border: none;
        }

/* roulang page: category3 */
:root {
            --color-primary: #0f2b4a;
            --color-primary-light: #1a4a7a;
            --color-accent: #c8963e;
            --color-accent-light: #e0b860;
            --color-surface: #f8f9fb;
            --color-card: #ffffff;
            --color-muted: #6b7280;
            --color-border: #e5e7eb;
            --color-text: #1a202c;
            --color-text-light: #4a5568;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s 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: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: #ffffff;
            min-height: 100vh;
        }

        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,
        button {
            outline: none;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (max-width: 1024px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        @media (max-width: 768px) {
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
        }

        /* Header */
        .main-header {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
        }
        .nav-logo:hover {
            color: var(--color-accent);
        }
        .logo-icon {
            font-size: 1.5rem;
            display: inline-flex;
            align-items: center;
        }

        .nav-desktop-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-desktop-links .nav-link {
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.925rem;
            font-weight: 500;
            color: #374151;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-desktop-links .nav-link:hover {
            background: #f3f4f6;
            color: var(--color-primary);
        }
        .nav-desktop-links .nav-link.active {
            background: var(--color-primary);
            color: #ffffff;
            font-weight: 600;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #ffffff;
            white-space: nowrap;
            transition: all var(--transition-normal);
            box-shadow: 0 2px 8px rgba(200, 150, 62, 0.3);
            margin-left: 6px;
        }
        .nav-cta-btn:hover {
            background: var(--color-accent-light);
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.45);
            transform: translateY(-1px);
            color: #ffffff;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: #f3f4f6;
        }

        @media (max-width: 1024px) {
            .nav-desktop-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                background: #ffffff;
                border-top: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 12px 16px;
                gap: 2px;
                z-index: 999;
            }
            .nav-desktop-links.show {
                display: flex;
            }
            .nav-desktop-links .nav-link {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 0.95rem;
            }
            .nav-desktop-links .nav-cta-btn {
                width: 100%;
                justify-content: center;
                margin-left: 0;
                margin-top: 6px;
                border-radius: var(--radius-md);
            }
            .mobile-menu-toggle {
                display: block;
            }
        }

        /* Footer */
        .site-footer {
            background: #0f1f35;
            color: #d1d5db;
            padding: 48px 0 24px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            color: #9ca3af;
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent-light);
        }
        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.03em;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #9ca3af;
            line-height: 1.6;
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            padding: 72px 0 64px;
            background: linear-gradient(135deg, #0f2b4a 0%, #1a4a7a 50%, #0f2b4a 100%);
            color: #ffffff;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }
        .hero-section h1 {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.25;
            margin: 0 0 16px;
            letter-spacing: 0.02em;
        }
        .hero-section .hero-desc {
            font-size: 1.1rem;
            opacity: 0.9;
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 640px;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 48px 0 40px;
            }
            .hero-section h1 {
                font-size: 1.8rem;
            }
            .hero-section .hero-desc {
                font-size: 0.95rem;
            }
        }

        /* Section common */
        .section-block {
            padding: 56px 0;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 36px 0;
            }
        }
        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-muted);
            margin-bottom: 36px;
            line-height: 1.6;
        }
        .section-title-row {
            text-align: center;
            margin-bottom: 8px;
        }
        .section-title-row .section-subtitle {
            text-align: center;
        }

        /* Stat Cards */
        .stat-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 900px) {
            .stat-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stat-cards-grid {
                grid-template-columns: 1fr;
            }
        }
        .stat-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: #cbd5e1;
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--color-accent);
            margin-bottom: 12px;
        }
        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin-top: 6px;
        }

        /* Content cards */
        .content-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 900px) {
            .content-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .content-card-grid {
                grid-template-columns: 1fr;
            }
        }
        .content-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
        }
        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .content-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .content-card-body {
            padding: 20px 18px;
        }
        .content-card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .content-card-body p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.6;
            margin: 0;
        }

        /* Feature row */
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        @media (max-width: 768px) {
            .feature-row {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        .feature-row.reverse {
            direction: ltr;
        }
        .feature-row.reverse>* {
            direction: ltr;
        }
        .feature-text h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .feature-text p {
            font-size: 1rem;
            color: var(--color-text-light);
            line-height: 1.75;
            margin-bottom: 12px;
        }
        .feature-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .feature-image img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* Data highlight */
        .data-highlight-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        @media (max-width: 600px) {
            .data-highlight-grid {
                grid-template-columns: 1fr;
            }
        }
        .data-highlight-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 20px;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border-left: 4px solid var(--color-accent);
            transition: all var(--transition-fast);
        }
        .data-highlight-item:hover {
            background: #eef2f8;
            border-left-color: var(--color-primary-light);
        }
        .data-highlight-item .dh-icon {
            font-size: 1.5rem;
            color: var(--color-accent);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .data-highlight-item .dh-info h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            margin: 0 0 4px;
        }
        .data-highlight-item .dh-info p {
            font-size: 0.88rem;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--color-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #cbd5e1;
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            background: none;
            border: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            font-size: 1rem;
            transition: transform var(--transition-normal);
            color: var(--color-muted);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.93rem;
            color: var(--color-text-light);
            line-height: 1.75;
        }

        /* CTA */
        .cta-section-alt {
            background: linear-gradient(135deg, #0f2b4a 0%, #1a3d60 100%);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #ffffff;
            box-shadow: var(--shadow-xl);
        }
        .cta-section-alt h2 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .cta-section-alt p {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 28px;
            font-size: 1.05rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #ffffff;
            border: none;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 18px rgba(200, 150, 62, 0.4);
            letter-spacing: 0.03em;
        }
        .btn-cta-lg:hover {
            background: var(--color-accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.55);
            color: #ffffff;
        }

        /* Section accent bar */
        .accent-bar {
            width: 48px;
            height: 4px;
            border-radius: 2px;
            background: var(--color-accent);
            margin: 0 auto 16px;
        }

        /* Responsive fine-tuning */
        @media (max-width: 768px) {
            .content-card-img {
                height: 160px;
            }
            .stat-card .stat-number {
                font-size: 1.7rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .cta-section-alt {
                padding: 32px 20px;
            }
            .cta-section-alt h2 {
                font-size: 1.35rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-brand-700: #1a3a5c;
            --color-brand-600: #2a5678;
            --color-brand-500: #3b6f94;
            --color-gold-500: #c9a96e;
            --color-gold-400: #e0c278;
            --color-bg: #f8f9fb;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-soft: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.10), 0 4px 10px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 14px 40px rgba(0, 0, 0, 0.12), 0 6px 16px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
        }

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

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            font-size: 16px;
        }

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

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header */
        .main-header {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-brand-700);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }
        .nav-logo:hover {
            opacity: 0.85;
        }
        .logo-icon {
            font-size: 1.55rem;
        }
        .nav-desktop-links {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: wrap;
        }
        .nav-desktop-links .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.925rem;
            font-weight: 500;
            color: #475569;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-desktop-links .nav-link:hover {
            color: var(--color-brand-700);
            background: #f1f5f9;
        }
        .nav-desktop-links .nav-link.active {
            color: #ffffff;
            background: var(--color-brand-700);
            font-weight: 600;
        }
        .nav-desktop-links .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #ffffff;
            background: var(--color-gold-500);
            border-radius: 24px;
            transition: all var(--transition-normal);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(201, 169, 110, 0.35);
            margin-left: 4px;
        }
        .nav-desktop-links .nav-cta-btn:hover {
            background: #b8934f;
            box-shadow: 0 4px 14px rgba(201, 169, 110, 0.5);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 1.3rem;
            color: var(--color-brand-700);
            transition: all var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: #f8fafc;
            border-color: var(--color-brand-500);
        }

        /* Hero */
        .hero-section {
            position: relative;
            background: linear-gradient(160deg, #1a3a5c 0%, #2a5678 35%, #1e405a 100%);
            color: #ffffff;
            padding: 70px 0 60px;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(201, 169, 110, 0.10);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.28);
            padding: 5px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
            color: var(--color-gold-400);
        }

        /* Section common */
        .section-pad {
            padding: 60px 0;
        }
        .section-title {
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--color-brand-700);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-soft);
            margin-bottom: 36px;
            max-width: 600px;
        }
        .section-header-center {
            text-align: center;
        }
        .section-header-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* Card base */
        .card-base {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
        }
        .card-base:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #dce6f0;
        }

        /* Tip cards */
        .tip-card {
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .tip-card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            background: #f0f4f8;
            color: var(--color-brand-700);
            flex-shrink: 0;
        }
        .tip-card-icon.gold-bg {
            background: #fdf8f0;
            color: #b8934f;
        }
        .tip-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-brand-700);
        }
        .tip-card p {
            font-size: 0.925rem;
            color: var(--color-text-soft);
            line-height: 1.65;
        }

        /* Strategy block */
        .strategy-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .strategy-block.reverse {
            direction: rtl;
        }
        .strategy-block.reverse>* {
            direction: ltr;
        }
        .strategy-image-wrap {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
        }
        .strategy-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .strategy-image-wrap:hover img {
            transform: scale(1.04);
        }
        .strategy-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-brand-700);
            margin-bottom: 14px;
        }
        .strategy-text p {
            color: var(--color-text-soft);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .strategy-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .strategy-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: #475569;
            line-height: 1.6;
        }
        .strategy-list li i {
            color: var(--color-gold-500);
            font-size: 0.85rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* Warning cards */
        .warning-card {
            background: #fffdf7;
            border: 1px solid #fdecc8;
            border-left: 4px solid #e0c278;
            border-radius: var(--radius-md);
            padding: 20px 22px;
            transition: all var(--transition-normal);
        }
        .warning-card:hover {
            box-shadow: var(--shadow-md);
            border-left-color: #c9a96e;
        }
        .warning-card h4 {
            font-weight: 700;
            color: #7a5e20;
            margin-bottom: 6px;
            font-size: 1rem;
        }
        .warning-card p {
            font-size: 0.9rem;
            color: #6b5e3d;
            line-height: 1.6;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            background: #ffffff;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #cbd5e1;
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-brand-700);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: background var(--transition-fast);
            gap: 12px;
        }
        .faq-question:hover {
            background: #f8fafc;
        }
        .faq-question i {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-normal);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-gold-500);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 320px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            color: var(--color-text-soft);
            font-size: 0.925rem;
            line-height: 1.75;
        }

        /* CTA */
        .cta-section-alt {
            background: linear-gradient(135deg, #1a3a5c 0%, #2a5678 60%, #1e405a 100%);
            color: #ffffff;
            padding: 55px 0;
            text-align: center;
            border-radius: var(--radius-xl);
            position: relative;
            overflow: hidden;
        }
        .cta-section-alt::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.10;
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
        }
        .cta-btn-lg {
            display: inline-block;
            background: var(--color-gold-500);
            color: #ffffff;
            padding: 14px 36px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 18px rgba(201, 169, 110, 0.45);
            letter-spacing: 0.02em;
        }
        .cta-btn-lg:hover {
            background: #d4b56a;
            box-shadow: 0 6px 24px rgba(201, 169, 110, 0.6);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: #0d2036;
            color: #cbd5e1;
            padding: 48px 0 24px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            color: #94a3b8;
            font-size: 0.875rem;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #e0c278;
        }
        .footer-logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.03em;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            font-size: 0.8rem;
            color: #64748b;
            line-height: 1.6;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .strategy-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .strategy-block.reverse {
                direction: ltr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .hero-section {
                padding: 50px 0 44px;
                min-height: 280px;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                border-top: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                padding: 10px 16px;
                gap: 4px;
                z-index: 99;
            }
            .nav-desktop-links.show {
                display: flex;
            }
            .nav-desktop-links .nav-link,
            .nav-desktop-links .nav-cta-btn {
                width: 100%;
                justify-content: center;
                border-radius: var(--radius-sm);
            }
            .nav-desktop-links .nav-cta-btn {
                margin-left: 0;
                margin-top: 6px;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .section-pad {
                padding: 40px 0;
            }
            .hero-section {
                padding: 38px 0 34px;
                min-height: 240px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .cta-section-alt {
                border-radius: var(--radius-lg);
                padding: 40px 16px;
            }
            .strategy-image-wrap {
                aspect-ratio: 16/10;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
            .hero-section {
                padding: 30px 0 28px;
                min-height: 220px;
            }
            .tip-card {
                padding: 20px 16px;
            }
            .strategy-text h3 {
                font-size: 1.25rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .cta-btn-lg {
                padding: 12px 26px;
                font-size: 0.95rem;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1e3f5e;
            --color-primary-light: #2c5a80;
            --color-primary-dark: #132b40;
            --color-accent: #c8963e;
            --color-accent-light: #e0c27a;
            --color-accent-dark: #9a7028;
            --color-bg: #f8f9fb;
            --color-bg-white: #ffffff;
            --color-bg-card: #ffffff;
            --color-text: #1a1a2e;
            --color-text-soft: #5a6070;
            --color-text-muted: #8890a0;
            --color-border: #e5e8ed;
            --color-border-light: #f0f2f5;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-tag: 20px;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.07);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.13);
            --shadow-nav: 0 1px 8px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
        }

        *,
        *::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', system-ui, sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
        }

        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 {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

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

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-primary);
            white-space: nowrap;
            transition: opacity var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-logo:hover {
            opacity: 0.82;
        }
        .logo-icon {
            font-size: 1.6rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            border-radius: 10px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-desktop-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            margin-left: auto;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: #f5f7fa;
        }
        .nav-link.active {
            color: var(--color-accent-dark);
            font-weight: 600;
            background: #fdfaf3;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: var(--shadow-btn);
            margin-left: 4px;
        }
        .nav-cta-btn:hover {
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
            color: #fff;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 6px 10px;
            border-radius: 8px;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }
        .mobile-menu-toggle:hover {
            background: #f5f7fa;
        }

        @media (max-width: 1024px) {
            .nav-desktop-links {
                gap: 2px;
            }
            .nav-link {
                padding: 7px 10px;
                font-size: 0.85rem;
            }
            .nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
        }
        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }
            .nav-desktop-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                background: #fff;
                border-bottom: 2px solid var(--color-border);
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
                padding: 12px 16px;
                gap: 4px;
                z-index: 99;
                border-radius: 0 0 16px 16px;
            }
            .nav-desktop-links.show {
                display: flex;
            }
            .nav-link {
                padding: 11px 16px;
                font-size: 0.95rem;
                width: 100%;
                border-radius: 10px;
            }
            .nav-cta-btn {
                margin-left: 0;
                margin-top: 6px;
                text-align: center;
                justify-content: center;
                width: 100%;
            }
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            padding: 80px 0 70px;
            color: #fff;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(19, 43, 64, 0.88) 0%, rgba(30, 63, 94, 0.78) 40%, rgba(44, 90, 128, 0.65) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 50px 0 40px;
            }
        }

        /* Section */
        .section-pad {
            padding: 64px 0;
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 40px 0;
            }
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 0.4rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-soft);
            margin-bottom: 2rem;
            line-height: 1.6;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .accent-line {
            display: inline-block;
            width: 48px;
            height: 4px;
            background: var(--color-accent);
            border-radius: 4px;
            margin-top: 8px;
        }

        /* Cards */
        .card-guide {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            transition: all var(--transition-base);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .card-guide:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #e0d5c0;
        }
        .card-guide .card-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
            margin-bottom: 16px;
        }
        .card-guide h3 {
            font-size: 1.15rem;
            font-weight: 650;
            color: var(--color-primary-dark);
            margin-bottom: 8px;
        }
        .card-guide p {
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.65;
            flex-grow: 1;
        }

        /* Stat card */
        .stat-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent);
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin-top: 4px;
        }

        /* Tag */
        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: var(--radius-tag);
            font-size: 0.82rem;
            font-weight: 500;
            background: #fdfaf3;
            color: var(--color-accent-dark);
            border: 1px solid #f0e6d0;
            white-space: nowrap;
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--color-border-light);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .faq-item h4 {
            font-size: 1.05rem;
            font-weight: 650;
            color: var(--color-primary-dark);
            margin-bottom: 6px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .faq-item h4 .faq-icon {
            color: var(--color-accent);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .faq-item p {
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-left: 28px;
        }

        /* CTA Section */
        .cta-section-alt {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
            border-radius: 20px;
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section-alt::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section-alt .cta-content {
            position: relative;
            z-index: 1;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            font-size: 1.05rem;
            font-weight: 650;
            color: var(--color-primary-dark);
            background: #fff;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.18);
        }
        .btn-cta-large:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
            background: #fefefe;
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary-dark);
            color: #c8d4e0;
            padding: 48px 0 28px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        @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;
            }
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 650;
            margin-bottom: 12px;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            color: #b0bec8;
            font-size: 0.88rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.01em;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #8898a8;
        }

        /* Misc */
        .img-card-cover {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 11px;
            margin-bottom: 16px;
        }
        .highlight-box {
            background: #fdfaf3;
            border-left: 4px solid var(--color-accent);
            border-radius: 0 10px 10px 0;
            padding: 16px 20px;
            margin: 16px 0;
            font-size: 0.93rem;
            color: var(--color-primary-dark);
            line-height: 1.65;
        }
        .divider-soft {
            border: none;
            height: 1px;
            background: var(--color-border-light);
            margin: 20px 0;
        }

/* roulang page: category5 */
:root {
            --color-primary: #1e3f62;
            --color-primary-light: #2c5682;
            --color-primary-dark: #152d48;
            --color-accent: #c49a3c;
            --color-accent-light: #dfb95c;
            --color-accent-dark: #8f6b22;
            --color-bg: #f8fafb;
            --color-bg-card: #ffffff;
            --color-bg-dark: #0f1f33;
            --color-text: #1a1f2e;
            --color-text-secondary: #5a6377;
            --color-text-light: #8b94a6;
            --color-border: #e2e7ee;
            --color-border-light: #f0f3f7;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(15, 31, 51, 0.06);
            --shadow: 0 2px 12px rgba(15, 31, 51, 0.07);
            --shadow-md: 0 6px 24px rgba(15, 31, 51, 0.10);
            --shadow-lg: 0 12px 40px rgba(15, 31, 51, 0.13);
            --transition: 0.22s ease;
        }

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

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            font-size: 16px;
            min-height: 100vh;
        }

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

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

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

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

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

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

        .main-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: opacity var(--transition);
        }

        .nav-logo:hover {
            opacity: 0.82;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            border-radius: var(--radius);
            font-size: 1.2rem;
            flex-shrink: 0;
        }

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

        .nav-desktop-links .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-desktop-links .nav-link:hover {
            color: var(--color-primary);
            background: #f5f7fa;
        }

        .nav-desktop-links .nav-link.active {
            color: var(--color-primary);
            background: #eef3f8;
            font-weight: 600;
        }

        .nav-desktop-links .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 6px;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            font-size: 0.88rem;
            font-weight: 600;
            color: #ffffff;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            border-radius: 24px;
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: 0 2px 10px rgba(180, 130, 40, 0.25);
            letter-spacing: 0.01em;
        }

        .nav-cta-btn:hover {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            box-shadow: 0 4px 18px rgba(180, 130, 40, 0.35);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .mobile-menu-toggle:hover {
            background: #f5f7fa;
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 70px 0;
            display: flex;
            align-items: center;
            min-height: 280px;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 31, 51, 0.88) 0%, rgba(30, 63, 98, 0.78) 55%, rgba(44, 86, 130, 0.65) 100%);
            z-index: 1;
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            color: #ffffff;
            max-width: 700px;
        }

        .page-banner .banner-badge {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.28);
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
            backdrop-filter: blur(4px);
        }

        .page-banner h1 {
            font-size: 2.4rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .page-banner .banner-desc {
            font-size: 1.05rem;
            opacity: 0.9;
            line-height: 1.7;
        }

        /* Section Styles */
        .section-padding {
            padding: 64px 0;
        }

        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-primary-dark);
            margin-bottom: 6px;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            margin-bottom: 36px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header .accent-line {
            display: inline-block;
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 6px;
            margin-bottom: 12px;
        }

        /* News Cards */
        .news-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            border: 1px solid var(--color-border-light);
            height: 100%;
        }

        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #dce4ed;
        }

        .news-card .news-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #eef2f7;
        }

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

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

        .news-card .news-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.94);
            color: var(--color-primary);
            border-radius: 16px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.01em;
            backdrop-filter: blur(6px);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
        }

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

        .news-card .news-date {
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-bottom: 6px;
        }

        .news-card .news-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.45;
            transition: color var(--transition);
        }

        .news-card:hover .news-title {
            color: var(--color-primary);
        }

        .news-card .news-excerpt {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }

        .news-card .news-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-accent-dark);
            transition: color var(--transition);
        }

        .news-card .news-link i {
            transition: transform var(--transition);
            font-size: 0.75rem;
        }

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

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

        /* Featured Match Card */
        .featured-match-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            box-shadow: var(--shadow);
            border: 1px solid var(--color-border-light);
            display: flex;
            align-items: center;
            gap: 24px;
            transition: all var(--transition);
            flex-wrap: wrap;
        }

        .featured-match-card:hover {
            box-shadow: var(--shadow-md);
        }

        .featured-match-card .match-teams {
            display: flex;
            align-items: center;
            gap: 20px;
            flex: 1;
            min-width: 200px;
        }

        .featured-match-card .team-name {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-text);
            text-align: center;
            min-width: 70px;
        }

        .featured-match-card .vs-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: #f0f4f8;
            border-radius: 50%;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-primary);
            flex-shrink: 0;
        }

        .featured-match-card .match-info {
            text-align: center;
            flex: 1;
            min-width: 140px;
        }

        .featured-match-card .match-league {
            font-size: 0.82rem;
            color: var(--color-accent-dark);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 4px;
        }

        .featured-match-card .match-time {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
        }

        .featured-match-card .match-status {
            display: inline-block;
            padding: 6px 16px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        /* Stats Strip */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-item {
            background: #ffffff;
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
        }

        .stat-item:hover {
            box-shadow: var(--shadow);
            border-color: #dce4ed;
        }

        .stat-item .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.1;
        }

        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin-top: 6px;
        }

        /* Tag Pills */
        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            background: #f5f8fb;
            border: 1px solid var(--color-border-light);
            border-radius: 22px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

        .tag-pill:hover,
        .tag-pill.active-tag {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            box-shadow: 0 2px 10px rgba(30, 63, 98, 0.2);
        }

        /* FAQ */
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: background var(--transition);
            user-select: none;
        }

        .faq-question:hover {
            background: #fafbfc;
        }

        .faq-question i {
            transition: transform var(--transition);
            color: var(--color-accent);
            font-size: 0.85rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        /* CTA Section */
        .cta-section-alt {
            background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary), var(--color-primary-light));
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        .cta-section-alt::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section-alt::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-section-alt h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .cta-section-alt p {
            font-size: 0.95rem;
            opacity: 0.9;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary-dark);
            background: #ffffff;
            border-radius: 28px;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            border: none;
            letter-spacing: 0.01em;
        }

        .btn-primary-lg:hover {
            background: #f0f4f8;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.22);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: var(--color-bg-dark);
            color: #c8d4e0;
            padding: 48px 0 0;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .footer-col a {
            display: block;
            color: #a0b4c8;
            font-size: 0.88rem;
            padding: 5px 0;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: #dfb95c;
        }

        .footer-logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: -0.01em;
        }

        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.82rem;
            color: #7a8ea0;
            line-height: 1.6;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .section-padding {
                padding: 48px 0;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop-links {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-desktop-links.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                border-bottom: 2px solid var(--color-border);
                padding: 12px 16px;
                box-shadow: var(--shadow-md);
                gap: 2px;
                z-index: 99;
            }
            .nav-desktop-links.mobile-open .nav-link {
                padding: 10px 14px;
                border-radius: var(--radius-sm);
                width: 100%;
            }
            .nav-desktop-links.mobile-open .nav-cta-btn {
                margin-top: 6px;
                text-align: center;
                justify-content: center;
                width: 100%;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .featured-match-card {
                flex-direction: column;
                text-align: center;
                gap: 14px;
                padding: 20px;
            }
            .featured-match-card .match-teams {
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .page-banner {
                padding: 44px 0;
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .cta-section-alt {
                padding: 32px 20px;
            }
            .cta-section-alt h3 {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 14px;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 16px 12px;
            }
            .stat-item .stat-number {
                font-size: 1.5rem;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .page-banner .banner-desc {
                font-size: 0.9rem;
            }
            .section-padding {
                padding: 36px 0;
            }
            .news-card .news-body {
                padding: 14px 16px 16px;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 0.85rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a3c5e;
            --color-primary-light: #2a5a8a;
            --color-accent: #c8a44e;
            --color-accent-light: #e0c878;
            --color-surface: #f8f9fb;
            --color-surface-dark: #1e293b;
            --color-text-main: #1e293b;
            --color-text-soft: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

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

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

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
            line-height: 1.7;
            color: var(--color-text-main);
            background-color: #ffffff;
            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;
            border: none;
            font-family: inherit;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 1280px) {
            .container-custom {
                max-width: 1240px;
            }
        }

        /* Header & Navigation */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }

        .main-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }
        .nav-logo:hover {
            opacity: 0.85;
        }
        .logo-icon {
            font-size: 1.5rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: #fff;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .nav-desktop-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(26, 60, 94, 0.04);
        }
        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(26, 60, 94, 0.06);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2.5px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            font-size: 0.88rem;
            font-weight: 600;
            color: #ffffff;
            background: linear-gradient(135deg, var(--color-accent) 0%, #b89335 100%);
            border-radius: 50px;
            white-space: nowrap;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 14px rgba(200, 164, 78, 0.35);
            margin-left: 6px;
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 164, 78, 0.5);
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #fff;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            line-height: 1;
        }
        .mobile-menu-toggle:hover {
            background: rgba(26, 60, 94, 0.06);
        }

        @media (max-width: 1024px) {
            .nav-desktop-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                background: #fff;
                border-top: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                padding: 12px 16px;
                gap: 2px;
                z-index: 999;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-desktop-links.show {
                display: flex;
            }
            .nav-link {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 0.95rem;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                border-left: 3px solid var(--color-accent);
                background: rgba(26, 60, 94, 0.04);
            }
            .nav-cta-btn {
                width: 100%;
                justify-content: center;
                margin-left: 0;
                margin-top: 4px;
                border-radius: var(--radius-sm);
                padding: 13px 20px;
            }
            .mobile-menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.05rem;
                gap: 6px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1.2rem;
            }
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 90px 0 80px;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 60, 94, 0.88) 0%, rgba(26, 60, 94, 0.72) 50%, rgba(30, 41, 59, 0.78) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 60px 0 50px;
                min-height: 320px;
            }
        }
        @media (max-width: 520px) {
            .hero-section {
                padding: 44px 0 36px;
                min-height: 260px;
            }
        }

        /* Section spacing */
        .section-pad {
            padding: 70px 0;
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 46px 0;
            }
        }
        @media (max-width: 520px) {
            .section-pad {
                padding: 34px 0;
            }
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.4px;
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            max-width: 600px;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.55rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 1.3rem;
            }
        }

        /* Cards */
        .card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-accent {
            border-left: 4px solid var(--color-accent);
        }

        /* Stats card */
        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -1px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin-top: 4px;
        }

        /* Badge / Tag */
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 12px;
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(200, 164, 78, 0.12);
            color: #8b6d20;
            white-space: nowrap;
        }
        .tag-blue {
            background: rgba(26, 60, 94, 0.08);
            color: var(--color-primary);
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            border-radius: 50px;
            transition: all var(--transition-normal);
            box-shadow: 0 6px 20px rgba(26, 60, 94, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(26, 60, 94, 0.45);
            color: #fff;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--color-accent) 0%, #b89335 100%);
            border-radius: 50px;
            transition: all var(--transition-normal);
            box-shadow: 0 6px 20px rgba(200, 164, 78, 0.35);
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(200, 164, 78, 0.5);
            color: #fff;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-primary);
            background: transparent;
            border: 2px solid var(--color-primary);
            border-radius: 50px;
            transition: all var(--transition-normal);
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 20px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border-light);
        }
        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .faq-answer {
            margin-top: 10px;
            color: var(--color-text-soft);
            font-size: 0.93rem;
            line-height: 1.75;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }
        .faq-icon {
            transition: transform var(--transition-fast);
            flex-shrink: 0;
            color: var(--color-accent);
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-dark);
            color: #cbd5e1;
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
        }
        .footer-logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 12px;
            font-size: 0.95rem;
            letter-spacing: 0.2px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.88rem;
            color: #94a3b8;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #94a3b8;
        }

        /* Step timeline */
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            position: relative;
        }
        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: 0 4px 14px rgba(26, 60, 94, 0.3);
        }
        @media (max-width: 520px) {
            .step-number {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
            .step-item {
                gap: 14px;
            }
        }

        /* Table-like odds display */
        .odds-row {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
            padding: 14px 16px;
            align-items: center;
            border-bottom: 1px solid var(--color-border-light);
            font-size: 0.9rem;
            transition: background var(--transition-fast);
        }
        .odds-row:hover {
            background: rgba(26, 60, 94, 0.02);
        }
        .odds-row.header-row {
            font-weight: 700;
            color: var(--color-primary);
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.4px;
            background: rgba(26, 60, 94, 0.03);
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
        }
        .odds-value {
            font-weight: 600;
            color: var(--color-text-main);
        }
        .odds-change-up {
            color: #16a34a;
            font-weight: 600;
        }
        .odds-change-down {
            color: #dc2626;
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .odds-row {
                grid-template-columns: 1.5fr 1fr 1fr;
                font-size: 0.82rem;
                gap: 4px;
            }
            .odds-row .hide-mobile {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .odds-row {
                grid-template-columns: 1.3fr 1fr;
                font-size: 0.78rem;
                padding: 10px 10px;
            }
            .odds-row .hide-mobile,
            .odds-row .hide-sm {
                display: none;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #1a3c5e;
            --color-primary-light: #2a5a8a;
            --color-accent: #c8a84e;
            --color-accent-light: #e0c878;
            --color-accent-dark: #a8882e;
            --color-surface: #f8f9fb;
            --color-surface-alt: #f0f2f5;
            --color-text-main: #1a1f2b;
            --color-text-soft: #5a6070;
            --color-text-muted: #88909e;
            --color-border: #e2e6ed;
            --color-border-light: #eef1f5;
            --radius-lg: 0.875rem;
            --radius-xl: 1.125rem;
            --radius-2xl: 1.5rem;
            --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-smooth: 0.25s 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: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.7;
            color: var(--color-text-main);
            background-color: #ffffff;
            overflow-x: hidden;
        }

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

        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: 1.25rem;
            padding-right: 1.25rem;
        }

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

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        .main-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: -0.01em;
            transition: color var(--transition-smooth);
        }

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

        .logo-icon {
            font-size: 1.4rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.2rem;
            height: 2.2rem;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: #ffffff;
            border-radius: 0.6rem;
            flex-shrink: 0;
        }

        .nav-desktop-links {
            display: none;
        }

        @media (min-width: 1024px) {
            .nav-desktop-links {
                display: flex;
            }
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.85rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: 0.5rem;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            color: var(--color-primary);
            background-color: rgba(26, 60, 94, 0.04);
        }

        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
            background-color: rgba(26, 60, 94, 0.06);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2.5px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1.25rem;
            font-size: 0.88rem;
            font-weight: 600;
            color: #ffffff;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: 0.5rem;
            white-space: nowrap;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-btn);
            margin-left: 0.35rem;
        }

        .nav-cta-btn:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 2.5rem;
            height: 2.5rem;
            background: transparent;
            border: 1px solid var(--color-border);
            border-radius: 0.5rem;
            font-size: 1.25rem;
            color: var(--color-text-soft);
            transition: all var(--transition-smooth);
        }

        .mobile-menu-toggle:hover {
            background: var(--color-surface);
            color: var(--color-primary);
        }

        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }

        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
            padding: 0.75rem 1.25rem 1.25rem;
            z-index: 99;
            flex-direction: column;
            gap: 0.25rem;
        }

        .mobile-menu-panel.open {
            display: flex;
        }

        @media (min-width: 1024px) {
            .mobile-menu-panel {
                display: none !important;
            }
        }

        .mobile-menu-panel .nav-link {
            display: block;
            padding: 0.6rem 0.85rem;
            font-size: 0.95rem;
            border-radius: 0.5rem;
        }

        .mobile-menu-panel .nav-cta-btn {
            display: block;
            text-align: center;
            margin-left: 0;
            margin-top: 0.35rem;
            padding: 0.65rem 1.25rem;
        }

        .banner-overlay {
            background: linear-gradient(180deg, rgba(26, 60, 94, 0.82) 0%, rgba(26, 60, 94, 0.7) 60%, rgba(26, 60, 94, 0.88) 100%);
        }

        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--color-text-main);
            letter-spacing: -0.01em;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 1.9rem;
            }
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            max-width: 600px;
        }

        .card-hover {
            transition: all var(--transition-smooth);
        }

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

        .badge-accent {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.7rem;
            font-size: 0.78rem;
            font-weight: 600;
            color: #ffffff;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: 2rem;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .badge-outline {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.7rem;
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--color-primary);
            background: transparent;
            border: 1.5px solid var(--color-primary);
            border-radius: 2rem;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .site-footer {
            background: #1a1f2b;
            color: #c5cad4;
            padding: 2.5rem 0 1.5rem;
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.75rem;
            margin-bottom: 1.75rem;
        }

        @media (min-width: 640px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (min-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1fr;
                gap: 2rem;
            }
        }

        .site-footer .footer-col h4 {
            color: #ffffff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
            letter-spacing: 0.01em;
        }

        .site-footer .footer-col a {
            display: block;
            color: #a5acb8;
            font-size: 0.85rem;
            padding: 0.2rem 0;
            transition: color var(--transition-smooth);
        }

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

        .site-footer .footer-logo-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: -0.01em;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.25rem;
            text-align: center;
            font-size: 0.8rem;
            color: #88909e;
        }

        .faq-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            background: #ffffff;
        }

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

        .faq-item summary {
            padding: 1.1rem 1.25rem;
            font-weight: 600;
            cursor: pointer;
            color: var(--color-text-main);
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            user-select: none;
            transition: color var(--transition-smooth);
        }

        .faq-item summary:hover {
            color: var(--color-primary);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 1rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .faq-item .faq-answer {
            padding: 0 1.25rem 1.15rem;
            color: var(--color-text-soft);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        .stat-card {
            text-align: center;
            padding: 1.5rem 1rem;
            background: #ffffff;
            border-radius: var(--radius-xl);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
        }

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

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.6rem;
            }
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            margin-top: 0.3rem;
            font-weight: 500;
        }

        .expert-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: #ffffff;
            flex-shrink: 0;
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        @media (min-width: 768px) {
            .expert-avatar {
                width: 88px;
                height: 88px;
                font-size: 2.2rem;
            }
        }

        .recommend-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        }

        @media (min-width: 768px) {
            .recommend-card-img {
                height: 220px;
            }
        }

        .divider-accent {
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
            margin: 0.5rem 0 1rem;
        }

        .divider-accent.centered {
            margin-left: auto;
            margin-right: auto;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.7rem 1.6rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            border-radius: 0.5rem;
            border: none;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-btn);
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
            background: linear-gradient(135deg, var(--color-primary-light) 0%, #3670a8 100%);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.7rem 1.6rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: 0.5rem;
            border: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 8px rgba(200, 168, 78, 0.25);
            letter-spacing: 0.01em;
        }

        .btn-accent:hover {
            box-shadow: 0 4px 16px rgba(200, 168, 78, 0.4);
            transform: translateY(-2px);
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.65rem 1.5rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-primary);
            background: transparent;
            border: 2px solid var(--color-primary);
            border-radius: 0.5rem;
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }

        .btn-outline:hover {
            background: var(--color-primary);
            color: #ffffff;
            transform: translateY(-1px);
        }

        @media (max-width: 767px) {
            .section-title {
                font-size: 1.4rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .recommend-card-img {
                height: 180px;
            }
        }