/* roulang page: index */
:root {
            --color-primary: #1a3352;
            --color-primary-dark: #0f1f33;
            --color-primary-light: #2a5080;
            --color-accent: #c9a050;
            --color-accent-light: #d9b870;
            --color-accent-dark: #a88030;
            --color-bg: #f8f7f4;
            --color-bg-white: #ffffff;
            --color-bg-light: #f0efe9;
            --color-bg-dark: #1a1f2b;
            --color-text: #2c2c2c;
            --color-text-light: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-text-white: #f5f5f5;
            --color-border: #e0ddd5;
            --color-border-light: #eeece5;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
            --container-max: 1240px;
            --container-narrow: 960px;
            --nav-height: 72px;
            --nav-height-mobile: 60px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-width: 320px;
        }

        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;
            border: none;
            outline: none;
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
            margin-bottom: 0.5em;
        }

        h1 {
            font-size: 2.8rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2.2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }

        p {
            margin-bottom: 0.8em;
            color: var(--color-text-light);
        }

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

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

        .section {
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: 48px 0;
        }
        .section-lg {
            padding: 100px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            margin-bottom: 8px;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            margin: 12px auto 0;
            border-radius: 2px;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 600px;
            margin: 12px auto 0;
        }

        .section-title-left {
            text-align: left;
            margin-bottom: 40px;
        }
        .section-title-left h2::after {
            margin: 12px 0 0;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            letter-spacing: -0.03em;
        }
        .logo-text {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--color-accent);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a.nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-main a.nav-link:hover {
            color: var(--color-accent);
            background: rgba(201, 160, 80, 0.06);
        }
        .nav-main a.nav-link.active {
            color: var(--color-accent);
            font-weight: 600;
            background: rgba(201, 160, 80, 0.1);
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--color-accent);
            color: #fff !important;
            transition: all var(--transition-normal);
            white-space: nowrap;
            box-shadow: 0 2px 10px rgba(201, 160, 80, 0.3);
            margin-left: 10px;
        }
        .nav-cta-btn:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 4px 18px rgba(201, 160, 80, 0.45);
            transform: translateY(-1px);
            color: #fff !important;
        }
        .nav-cta-btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            border: 2px solid var(--color-accent);
            color: var(--color-accent) !important;
            background: transparent;
            transition: all var(--transition-normal);
            white-space: nowrap;
            margin-left: 6px;
        }
        .nav-cta-btn-outline:hover {
            background: var(--color-accent);
            color: #fff !important;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
            line-height: 1;
        }
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.55);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .mobile-menu-overlay.active {
            opacity: 1;
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100%;
            background: #fff;
            z-index: 1000;
            padding: 24px;
            overflow-y: auto;
            transition: right var(--transition-slow);
            box-shadow: var(--shadow-xl);
        }
        .mobile-menu-panel.active {
            right: 0;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            color: var(--color-text);
            margin-bottom: 4px;
            transition: all var(--transition-fast);
        }
        .mobile-menu-panel a:hover,
        .mobile-menu-panel a.active {
            color: var(--color-accent);
            background: rgba(201, 160, 80, 0.08);
        }
        .mobile-menu-panel .mobile-cta {
            margin-top: 16px;
            text-align: center;
            display: block;
            padding: 12px 20px;
            border-radius: 50px;
            font-weight: 600;
            background: var(--color-accent);
            color: #fff !important;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background: linear-gradient(160deg, #0f1f33 0%, #1a3352 35%, #1a3a5c 65%, #0f1f33 100%);
            overflow: hidden;
            padding: 80px 0 100px;
        }
        .hero-bg-img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.22;
            pointer-events: none;
        }
        .hero-overlay-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at 30% 50%, rgba(201, 160, 80, 0.1) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(201, 160, 80, 0.2);
            color: var(--color-accent-light);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            border: 1px solid rgba(201, 160, 80, 0.3);
        }
        .hero-content h1 {
            color: #ffffff;
            font-size: 3.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            line-height: 1.25;
        }
        .hero-content h1 span {
            color: var(--color-accent-light);
        }
        .hero-content .hero-desc {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.15rem;
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 560px;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: var(--color-accent);
            color: #fff;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 20px rgba(201, 160, 80, 0.4);
        }
        .btn-hero-primary:hover {
            background: var(--color-accent-light);
            box-shadow: 0 6px 28px rgba(201, 160, 80, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-normal);
        }
        .btn-hero-secondary:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .hero-stats-row {
            display: flex;
            gap: 40px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            text-align: left;
        }
        .hero-stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent-light);
            line-height: 1;
        }
        .hero-stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        /* ========== DATA STATS ========== */
        .stats-section {
            background: #fff;
            padding: 48px 0;
            border-bottom: 1px solid var(--color-border-light);
            margin-top: -40px;
            position: relative;
            z-index: 3;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            box-shadow: var(--shadow-lg);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-card {
            padding: 20px 16px;
            border-radius: var(--radius-md);
            background: var(--color-bg);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-icon {
            font-size: 2rem;
            color: var(--color-accent);
            margin-bottom: 8px;
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
        }
        .stat-number small {
            font-size: 1.2rem;
            font-weight: 600;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-top: 6px;
        }

        /* ========== ADVANTAGES ========== */
        .advantages-section {
            background: var(--color-bg);
        }
        .adv-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .adv-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--color-border-light);
            text-align: center;
        }
        .adv-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: var(--color-accent);
        }
        .adv-icon-circle {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(201, 160, 80, 0.15), rgba(201, 160, 80, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--color-accent);
            transition: all var(--transition-normal);
        }
        .adv-card:hover .adv-icon-circle {
            background: var(--color-accent);
            color: #fff;
            transform: scale(1.08);
        }
        .adv-card h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .adv-card p {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* ========== CATEGORY CARDS ========== */
        .category-section {
            background: #fff;
        }
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .cat-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            background: #fff;
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }
        .cat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }
        .cat-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .cat-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cat-card-body h3 {
            font-size: 1.1rem;
            margin-bottom: 6px;
        }
        .cat-card-body p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            flex: 1;
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .cat-card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 600;
            color: var(--color-accent);
            font-size: 0.9rem;
            transition: gap var(--transition-fast);
        }
        .cat-card-link:hover {
            gap: 8px;
            color: var(--color-accent-dark);
        }

        /* ========== BRAND STORY ========== */
        .brand-story-section {
            background: var(--color-bg-light);
            position: relative;
            overflow: hidden;
        }
        .brand-story-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .brand-story-img-wrap {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .brand-story-img-wrap img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }
        .brand-story-text h2 {
            margin-bottom: 20px;
        }
        .brand-story-text p {
            font-size: 1rem;
            line-height: 1.9;
            color: var(--color-text-light);
            margin-bottom: 14px;
        }
        .brand-story-highlight {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 4px 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        /* ========== FEATURED ========== */
        .featured-section {
            background: #fff;
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: #fff;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }
        .featured-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .featured-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .featured-card-body {
            padding: 20px;
        }
        .featured-card-body .tag {
            display: inline-block;
            background: rgba(201, 160, 80, 0.12);
            color: var(--color-accent-dark);
            padding: 3px 10px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .featured-card-body h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .featured-card-body p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
        }

        /* ========== TESTIMONIALS ========== */
        .testimonials-section {
            background: var(--color-bg);
        }
        .testi-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testi-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
        }
        .testi-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .testi-card .quote-icon {
            font-size: 2.5rem;
            color: rgba(201, 160, 80, 0.25);
            position: absolute;
            top: 16px;
            right: 20px;
        }
        .testi-card p {
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--color-text-light);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .testi-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testi-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .testi-author-info strong {
            display: block;
            font-size: 0.9rem;
            color: var(--color-primary);
        }
        .testi-author-info span {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #fff;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .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 {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-primary);
            gap: 16px;
            user-select: none;
        }
        .faq-question i {
            transition: transform var(--transition-normal);
            color: var(--color-accent);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            color: var(--color-text-light);
            font-size: 0.95rem;
            line-height: 1.8;
            padding-right: 30px;
        }
        .faq-item.open .faq-answer {
            max-height: 600px;
            padding-top: 12px;
            padding-bottom: 8px;
        }

        /* ========== NEWS ========== */
        .news-section {
            background: var(--color-bg);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .news-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .news-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-date {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-bottom: 6px;
        }
        .news-card-body h4 {
            font-size: 1rem;
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .news-card-body p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            flex: 1;
            line-height: 1.6;
        }
        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-accent);
            margin-top: 12px;
            transition: gap var(--transition-fast);
        }
        .btn-read-more:hover {
            gap: 8px;
            color: var(--color-accent-dark);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 550px;
            margin: 0 auto 28px;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            background: var(--color-accent);
            color: #fff;
            transition: all var(--transition-normal);
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.3);
        }
        .btn-cta-large:hover {
            background: var(--color-accent-light);
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.4);
            transform: translateY(-3px);
            color: #fff;
        }
        .cta-bg-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at 20% 80%, rgba(201, 160, 80, 0.2) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
            pointer-events: none;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 50px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .logo-text-footer {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 10px;
            display: block;
        }
        .footer-brand .logo-text-footer span {
            color: var(--color-accent-light);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 14px;
            font-weight: 600;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li 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: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 14px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }
        .footer-social a:hover {
            background: var(--color-accent);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .hero-content h1 {
                font-size: 2.4rem;
            }
            .hero-section {
                min-height: 500px;
                padding: 60px 0 70px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .adv-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .brand-story-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .brand-story-img-wrap img {
                height: 300px;
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .testi-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .nav-main a.nav-link {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .nav-cta-btn,
            .nav-cta-btn-outline {
                padding: 8px 16px;
                font-size: 0.82rem;
                margin-left: 4px;
            }
            .section {
                padding: 56px 0;
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-section {
                min-height: 440px;
                padding: 48px 0 56px;
            }
            .hero-content .hero-desc {
                font-size: 0.95rem;
            }
            .hero-stats-row {
                gap: 20px;
                margin-top: 24px;
            }
            .hero-stat-number {
                font-size: 1.8rem;
            }
            .nav-main {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .mobile-menu-overlay {
                display: block;
                pointer-events: none;
            }
            .mobile-menu-overlay.active {
                pointer-events: auto;
            }
            .mobile-menu-panel {
                display: block;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .adv-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .testi-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .brand-story-img-wrap img {
                height: 240px;
            }
            .stats-section {
                margin-top: -24px;
                border-radius: var(--radius-md) var(--radius-md) 0 0;
            }
            .section {
                padding: 44px 0;
            }
            .hero-btns {
                flex-direction: column;
                gap: 10px;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                justify-content: center;
                width: 100%;
                text-align: center;
            }
            .hero-stats-row {
                justify-content: flex-start;
            }
        }

        @media (max-width: 520px) {
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-section {
                min-height: 380px;
                padding: 36px 0 44px;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .hero-content .hero-desc {
                font-size: 0.85rem;
                line-height: 1.6;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 14px 10px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .adv-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .cat-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .testi-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .hero-stats-row {
                flex-wrap: wrap;
                gap: 16px;
            }
            .section-title h2 {
                font-size: 1.3rem;
            }
            .section {
                padding: 36px 0;
            }
            .container {
                padding: 0 16px;
            }
            .stats-section {
                margin-top: -16px;
                padding: 28px 0;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #0d2137;
            --color-primary-light: #1a3a5c;
            --color-accent: #c8963e;
            --color-accent-light: #d4a855;
            --color-accent-dark: #a67c2e;
            --color-bg: #f8f7f4;
            --color-white: #ffffff;
            --color-text: #1e1e1e;
            --color-text-weak: #6b6b6b;
            --color-text-muted: #999999;
            --color-border: #e5e3de;
            --color-border-light: #f0ede8;
            --color-card-bg: #ffffff;
            --color-footer-bg: #0a1929;
            --color-footer-text: rgba(255, 255, 255, 0.75);
            --color-gold-light: #f5e6c8;
            --color-danger: #c0392b;
            --color-success: #1e7a4a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.09);
            --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.16);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
            --section-gap: 64px;
            --section-gap-lg: 80px;
        }

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

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

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: var(--color-primary);
            margin-bottom: 0.6em;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 700;
        }
        h2 {
            font-size: 1.95rem;
            font-weight: 700;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1rem;
            color: var(--color-text-weak);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: var(--section-gap) 0;
        }
        .section-lg {
            padding: var(--section-gap-lg) 0;
        }
        .section-sm {
            padding: 40px 0;
        }

        /* ===== HEADER & NAV ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            gap: 24px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            flex-shrink: 0;
            text-decoration: none;
            color: var(--color-primary);
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }
        .logo-link:hover {
            opacity: 0.85;
            color: var(--color-primary);
        }
        .logo-link .logo-accent {
            color: var(--color-accent);
            margin-left: 1px;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 10px;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-link {
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.2px;
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(0, 0, 0, 0.03);
        }
        .nav-link.active {
            color: var(--color-accent-dark);
            font-weight: 600;
            background: rgba(200, 150, 62, 0.07);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--color-accent);
        }
        .nav-cta-btn {
            padding: 9px 18px;
            border-radius: 24px;
            font-size: 0.88rem;
            font-weight: 600;
            color: #fff !important;
            background: var(--color-accent);
            white-space: nowrap;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            box-shadow: 0 3px 12px rgba(200, 150, 62, 0.3);
            margin-left: 4px;
        }
        .nav-cta-btn:hover {
            background: var(--color-accent-dark);
            color: #fff !important;
            box-shadow: 0 6px 20px rgba(200, 150, 62, 0.4);
            transform: translateY(-1px);
        }
        .nav-cta-btn-outline {
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-primary) !important;
            border: 1.5px solid var(--color-border);
            white-space: nowrap;
            transition: all var(--transition-base);
            letter-spacing: 0.2px;
            background: transparent;
        }
        .nav-cta-btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-dark) !important;
            background: rgba(200, 150, 62, 0.04);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--color-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* ===== PAGE BANNER ===== */
        .page-banner {
            position: relative;
            background: var(--color-primary-light);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 33, 55, 0.88) 0%, rgba(26, 58, 92, 0.75) 40%, rgba(13, 33, 55, 0.82) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 40px 0;
            max-width: 720px;
        }
        .banner-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 14px;
            flex-wrap: wrap;
        }
        .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: color var(--transition-fast);
        }
        .banner-breadcrumb a:hover {
            color: var(--color-accent-light);
        }
        .banner-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.7rem;
        }
        .banner-breadcrumb .current {
            color: var(--color-accent-light);
            font-weight: 500;
        }
        .page-banner h1 {
            color: #fff;
            font-size: 2.5rem;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .page-banner .banner-desc {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.08rem;
            line-height: 1.6;
            max-width: 600px;
        }
        .banner-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        /* ===== SKILL CARDS GRID ===== */
        .skills-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .skill-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .skill-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-border);
        }
        .skill-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e8e5df;
        }
        .skill-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .skill-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .skill-card .card-img-wrap .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: #fff;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            z-index: 3;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }
        .skill-card .card-body {
            padding: 20px 18px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .skill-card .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--color-primary);
        }
        .skill-card .card-body p {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            margin-bottom: 16px;
            flex: 1;
            line-height: 1.55;
        }
        .skill-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-accent-dark);
            transition: all var(--transition-fast);
            align-self: flex-start;
        }
        .skill-card .card-body .card-link:hover {
            color: var(--color-accent);
            gap: 10px;
        }
        .skill-card .card-body .card-link i {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }

        /* ===== DEEP DIVE SECTION ===== */
        .deep-dive-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background: var(--color-white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
        }
        .deep-dive-block .deep-img {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            height: 100%;
            min-height: 320px;
        }
        .deep-dive-block .deep-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .deep-dive-block:hover .deep-img img {
            transform: scale(1.04);
        }
        .deep-dive-block .deep-text {
            padding: 40px 36px 40px 12px;
        }
        .deep-dive-block .deep-text h2 {
            margin-bottom: 14px;
            font-size: 1.7rem;
        }
        .deep-dive-block .deep-text p {
            font-size: 0.98rem;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .deep-dive-block .deep-text .highlight-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
        }
        .deep-dive-block .deep-text .highlight-item {
            background: var(--color-gold-light);
            color: var(--color-accent-dark);
            padding: 7px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        /* ===== CASE STUDIES ===== */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .case-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .case-card .case-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #e8e5df;
        }
        .case-card .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .case-card:hover .case-img img {
            transform: scale(1.05);
        }
        .case-card .case-info {
            padding: 18px 16px 20px;
        }
        .case-card .case-info h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
            color: var(--color-primary);
        }
        .case-card .case-info p {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            margin-bottom: 0;
            line-height: 1.5;
        }
        .case-card .case-meta {
            display: flex;
            gap: 16px;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 8px;
        }
        .case-card .case-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ===== STATS ROW ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--color-accent-light);
        }
        .stat-item .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-accent);
            letter-spacing: 1px;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            font-weight: 500;
        }
        .stat-item .stat-sub {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 3px;
        }

        /* ===== TIPS LIST ===== */
        .tips-list-section {
            background: var(--color-white);
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }
        .tips-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px 32px;
        }
        .tip-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .tip-item:last-child {
            border-bottom: none;
        }
        .tip-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-gold-light);
            color: var(--color-accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
        }
        .tip-content h4 {
            font-size: 1rem;
            margin-bottom: 2px;
            color: var(--color-primary);
        }
        .tip-content p {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            margin-bottom: 0;
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-section-wrap {
            background: var(--color-white);
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }
        .faq-list-vertical .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 18px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-list-vertical .faq-item:last-child {
            border-bottom: none;
        }
        .faq-list-vertical .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--color-primary);
            transition: color var(--transition-fast);
        }
        .faq-list-vertical .faq-q i {
            color: var(--color-accent);
            font-size: 0.8rem;
            transition: transform var(--transition-base);
        }
        .faq-list-vertical .faq-item:hover .faq-q {
            color: var(--color-accent-dark);
        }
        .faq-list-vertical .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease, padding 0.3s ease;
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.65;
        }
        .faq-list-vertical .faq-item.open .faq-a {
            max-height: 400px;
            padding-top: 10px;
        }
        .faq-list-vertical .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }

        /* ===== CTA ===== */
        .cta-section-custom {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 60%, #1a3a5c 100%);
            border-radius: var(--radius-xl);
            padding: 52px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-section-custom::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section-custom h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section-custom p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-gold-lg {
            display: inline-block;
            padding: 14px 36px;
            background: var(--color-accent);
            color: #fff !important;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.05rem;
            letter-spacing: 0.5px;
            transition: all var(--transition-base);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.45);
            position: relative;
            z-index: 1;
            border: none;
            cursor: pointer;
        }
        .btn-gold-lg:hover {
            background: var(--color-accent-light);
            box-shadow: 0 10px 32px rgba(200, 150, 62, 0.55);
            transform: translateY(-2px);
            color: #fff !important;
        }
        .btn-outline-white {
            display: inline-block;
            padding: 12px 30px;
            border: 2px solid rgba(255, 255, 255, 0.6);
            color: #fff !important;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            margin-left: 14px;
            background: transparent;
            cursor: pointer;
        }
        .btn-outline-white:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff !important;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--color-footer-bg);
            color: var(--color-footer-text);
            padding: 50px 0 0;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .logo-text-footer {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand .logo-text-footer span {
            color: var(--color-accent-light);
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--color-footer-text);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }
        .footer-social a:hover {
            background: var(--color-accent);
            color: #fff;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--color-footer-text);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== SECTION HEADER ===== */
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 1.9rem;
            margin-bottom: 8px;
        }
        .section-header .section-subtitle {
            color: var(--color-text-weak);
            font-size: 0.98rem;
            max-width: 560px;
            margin: 0 auto;
        }
        .section-header.left-align {
            text-align: left;
        }
        .section-header.left-align .section-subtitle {
            margin: 0;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .skills-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .deep-dive-block {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .deep-dive-block .deep-text {
                padding: 28px 24px 32px;
            }
            .deep-dive-block .deep-img {
                min-height: 240px;
                aspect-ratio: 16 / 9;
            }
            .tips-list {
                grid-template-columns: 1fr;
                gap: 8px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .nav-main {
                gap: 2px;
            }
            .nav-link {
                padding: 7px 10px;
                font-size: 0.84rem;
            }
            .nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .nav-cta-btn-outline {
                padding: 7px 12px;
                font-size: 0.78rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
                --section-gap: 44px;
                --section-gap-lg: 56px;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .skills-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .case-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item .stat-num {
                font-size: 2rem;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .banner-desc {
                font-size: 0.9rem;
            }
            .deep-dive-block .deep-text {
                padding: 22px 18px 26px;
            }
            .deep-dive-block .deep-text h2 {
                font-size: 1.35rem;
            }
            .tips-list-section,
            .faq-section-wrap {
                padding: 28px 18px;
            }
            .cta-section-custom {
                padding: 36px 22px;
            }
            .cta-section-custom h2 {
                font-size: 1.5rem;
            }
            .btn-outline-white {
                margin-left: 8px;
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            .btn-gold-lg {
                padding: 12px 26px;
                font-size: 0.9rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .nav-main {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                box-shadow: var(--shadow-lg);
                border-top: 1px solid var(--color-border);
                z-index: 999;
                gap: 4px;
            }
            .nav-main.mobile-open {
                display: flex;
            }
            .nav-link {
                padding: 10px 14px;
                font-size: 0.9rem;
                border-radius: var(--radius-sm);
            }
            .nav-cta-btn,
            .nav-cta-btn-outline {
                margin: 6px 0;
                text-align: center;
                display: block;
                width: 100%;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-inner {
                gap: 12px;
            }
        }

        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 20px 10px;
            }
            .stat-item .stat-num {
                font-size: 1.7rem;
            }
            .stat-item .stat-label {
                font-size: 0.78rem;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .page-banner {
                min-height: 220px;
            }
            .cta-section-custom h2 {
                font-size: 1.3rem;
            }
            .btn-outline-white {
                display: block;
                margin: 10px auto 0;
                max-width: 220px;
            }
            .deep-dive-block .deep-text .highlight-list {
                gap: 6px;
            }
            .deep-dive-block .deep-text .highlight-item {
                font-size: 0.74rem;
                padding: 5px 10px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #0b2d4a;
            --color-primary-light: #143d61;
            --color-primary-dark: #061d30;
            --color-accent: #c8963e;
            --color-accent-light: #d9ae64;
            --color-accent-dark: #a67a2e;
            --color-cta: #e0732a;
            --color-cta-hover: #c45e1f;
            --color-bg: #f7f8fa;
            --color-white: #ffffff;
            --color-card: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-success: #16a34a;
            --color-success-bg: #f0fdf4;
            --color-warning: #f59e0b;
            --color-danger: #dc2626;
            --radius-sm: 6px;
            --radius-md: 10px;
            --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 14px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
            --max-width: 1240px;
            --nav-height: 72px;
            --section-gap: 60px;
            --section-gap-sm: 40px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-width: 320px;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.1rem;
            font-weight: 700;
        }
        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--color-accent);
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: var(--color-accent);
            background: rgba(200, 150, 62, 0.06);
        }
        .nav-link.active {
            color: var(--color-accent);
            background: rgba(200, 150, 62, 0.1);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px 3px 0 0;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff !important;
            background: var(--color-cta);
            transition: all var(--transition-fast);
            white-space: nowrap;
            margin-left: 8px;
            box-shadow: 0 2px 8px rgba(224, 115, 42, 0.3);
        }
        .nav-cta-btn:hover {
            background: var(--color-cta-hover);
            box-shadow: 0 4px 16px rgba(224, 115, 42, 0.4);
            transform: translateY(-1px);
            color: #fff !important;
        }
        .nav-cta-btn-outline {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-primary) !important;
            border: 2px solid var(--color-border);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-cta-btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent) !important;
            background: rgba(200, 150, 62, 0.04);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
            background: none;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-normal);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .mobile-nav-overlay.show {
            opacity: 1;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 45, 74, 0.88) 0%, rgba(6, 29, 48, 0.78) 40%, rgba(11, 45, 74, 0.85) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .page-banner-content {
            padding: 50px 0;
            color: #fff;
        }
        .breadcrumb-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb-row a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-fast);
        }
        .breadcrumb-row a:hover {
            color: var(--color-accent-light);
        }
        .breadcrumb-row .sep {
            font-size: 0.7rem;
        }
        .breadcrumb-row .current {
            color: var(--color-accent-light);
            font-weight: 500;
        }
        .page-banner-title {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .page-banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.6;
        }
        .banner-badge {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(200, 150, 62, 0.25);
            color: var(--color-accent-light);
            border: 1px solid rgba(200, 150, 62, 0.4);
            margin-bottom: 14px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: var(--section-gap-sm) 0;
        }
        .section-bg-white {
            background: var(--color-white);
        }
        .section-bg-dark {
            background: var(--color-primary);
            color: #fff;
        }
        .section-bg-light {
            background: var(--color-bg);
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .section-header .section-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-accent);
            background: rgba(200, 150, 62, 0.1);
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }
        .section-header p {
            color: var(--color-text-weak);
            max-width: 640px;
            margin: 0 auto;
            font-size: 1rem;
            line-height: 1.7;
        }
        .section-header.light h2 {
            color: #fff;
        }
        .section-header.light p {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-header.light .section-tag {
            background: rgba(200, 150, 62, 0.2);
            color: var(--color-accent-light);
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card-icon.blue {
            background: #eef4fb;
            color: #2563eb;
        }
        .card-icon.gold {
            background: #fef9f0;
            color: #c8963e;
        }
        .card-icon.green {
            background: #ecfdf5;
            color: #16a34a;
        }
        .card-icon.purple {
            background: #f5f3ff;
            color: #7c3aed;
        }
        .card-icon.red {
            background: #fef2f2;
            color: #dc2626;
        }
        .card h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .card p {
            color: var(--color-text-weak);
            font-size: 0.93rem;
            line-height: 1.7;
            flex-grow: 1;
        }
        .card-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }
        .card-tag.hot {
            background: #fef2f2;
            color: #dc2626;
        }
        .card-tag.new {
            background: #ecfdf5;
            color: #16a34a;
        }
        .card-tag.rec {
            background: #fef9f0;
            color: #c8963e;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }
        .stat-item {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            min-width: 150px;
            flex: 1 1 160px;
            max-width: 220px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-number.accent {
            color: var(--color-accent);
        }
        .stat-number.cta-color {
            color: var(--color-cta);
        }
        .stat-label {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            font-weight: 500;
        }
        .stat-unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-weak);
        }

        /* ========== PREDICTION TABLE ========== */
        .prediction-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            background: var(--color-white);
        }
        .prediction-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 0.93rem;
        }
        .prediction-table thead th {
            background: var(--color-primary);
            color: #fff;
            padding: 14px 16px;
            text-align: center;
            font-weight: 600;
            font-size: 0.88rem;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .prediction-table tbody td {
            padding: 13px 16px;
            text-align: center;
            border-bottom: 1px solid var(--color-border-light);
            vertical-align: middle;
        }
        .prediction-table tbody tr {
            transition: background var(--transition-fast);
        }
        .prediction-table tbody tr:hover {
            background: #fafbfc;
        }
        .prediction-table tbody tr:last-child td {
            border-bottom: none;
        }
        .badge-result {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .badge-result.win {
            background: #ecfdf5;
            color: #16a34a;
        }
        .badge-result.lose {
            background: #fef2f2;
            color: #dc2626;
        }
        .badge-result.draw {
            background: #fffbeb;
            color: #d97706;
        }
        .badge-league {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 10px;
            font-size: 0.78rem;
            font-weight: 500;
            background: #f1f5f9;
            color: var(--color-text-weak);
        }

        /* ========== ANALYSIS CARDS ========== */
        .analysis-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .analysis-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .analysis-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .analysis-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .analysis-card:hover .analysis-card-img img {
            transform: scale(1.05);
        }
        .analysis-card-img .overlay-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(0, 0, 0, 0.6);
            color: #fff;
            letter-spacing: 0.03em;
        }
        .analysis-card-body {
            padding: 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .analysis-card-body h3 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .analysis-card-body p {
            color: var(--color-text-weak);
            font-size: 0.9rem;
            line-height: 1.6;
            flex-grow: 1;
            margin-bottom: 12px;
        }
        .analysis-card-body .card-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .analysis-card-body .card-meta i {
            color: var(--color-accent);
        }

        /* ========== EXPERT CARDS ========== */
        .expert-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            height: 100%;
        }
        .expert-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .expert-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            overflow: hidden;
            margin: 0 auto 16px;
            border: 3px solid var(--color-border-light);
            transition: border-color var(--transition-normal);
        }
        .expert-card:hover .expert-avatar {
            border-color: var(--color-accent);
        }
        .expert-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .expert-card h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .expert-card .expert-title {
            font-size: 0.85rem;
            color: var(--color-accent);
            font-weight: 500;
            margin-bottom: 10px;
        }
        .expert-card p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.6;
        }
        .expert-stats {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-top: 12px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }
        .expert-stats span {
            font-weight: 600;
            color: var(--color-primary);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            width: 100%;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            background: none;
            border: none;
            text-align: left;
            transition: color var(--transition-fast);
            font-family: var(--font-body);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-normal);
            color: var(--color-text-weak);
            background: var(--color-bg);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--color-accent);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
            font-size: 0.93rem;
            color: var(--color-text-weak);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            padding: 60px 0;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.08);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 250px;
            height: 250px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.06);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-btn-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 10px;
            font-size: 1.05rem;
            font-weight: 600;
            background: var(--color-cta);
            color: #fff !important;
            box-shadow: 0 6px 24px rgba(224, 115, 42, 0.4);
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
        }
        .cta-btn-lg:hover {
            background: var(--color-cta-hover);
            box-shadow: 0 8px 30px rgba(224, 115, 42, 0.55);
            transform: translateY(-2px);
        }
        .cta-btn-outline-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 10px;
            font-size: 1.05rem;
            font-weight: 600;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff !important;
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
            margin-left: 12px;
        }
        .cta-btn-outline-lg:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 0;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 30px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .logo-text-footer {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: inline-block;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-brand .logo-text-footer span {
            color: var(--color-accent-light);
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            margin-bottom: 16px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }
        .footer-social a:hover {
            background: var(--color-accent);
            color: #fff;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            text-align: center;
            padding: 18px 0;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --section-gap: 44px;
                --section-gap-sm: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner-title {
                font-size: 1.8rem;
            }
            .nav-cta-btn-outline {
                display: none;
            }
            .nav-link {
                padding: 6px 10px;
                font-size: 0.85rem;
            }
            .nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
            .stat-item {
                min-width: 130px;
                flex: 1 1 130px;
                max-width: 170px;
                padding: 20px 14px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
                --section-gap: 36px;
                --section-gap-sm: 26px;
            }
            .site-header .container {
                flex-wrap: nowrap;
            }
            .nav-main {
                position: fixed;
                top: var(--nav-height);
                right: -100%;
                width: 280px;
                height: calc(100vh - var(--nav-height));
                background: var(--color-white);
                flex-direction: column;
                padding: 20px;
                gap: 4px;
                box-shadow: var(--shadow-xl);
                transition: right var(--transition-normal);
                z-index: 1000;
                overflow-y: auto;
                align-items: stretch;
            }
            .nav-main.show {
                right: 0;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 0.95rem;
                border-radius: 8px;
                width: 100%;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                border-left: 3px solid var(--color-accent);
                border-radius: 0 8px 8px 0;
            }
            .nav-cta-btn,
            .nav-cta-btn-outline {
                width: 100%;
                justify-content: center;
                margin-left: 0;
                margin-top: 6px;
                padding: 12px 20px;
                font-size: 0.95rem;
            }
            .nav-cta-btn-outline {
                display: flex;
            }
            .hamburger {
                display: flex;
            }
            .mobile-nav-overlay {
                display: block;
                pointer-events: none;
            }
            .mobile-nav-overlay.show {
                pointer-events: auto;
            }
            .page-banner {
                min-height: 220px;
            }
            .page-banner-title {
                font-size: 1.5rem;
            }
            .page-banner-subtitle {
                font-size: 0.93rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-row {
                gap: 12px;
            }
            .stat-item {
                min-width: 100px;
                flex: 1 1 100px;
                max-width: 140px;
                padding: 16px 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-label {
                font-size: 0.78rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-btn-outline-lg {
                margin-left: 0;
                margin-top: 10px;
            }
            .analysis-card-img {
                height: 160px;
            }
            .prediction-table {
                min-width: 550px;
                font-size: 0.8rem;
            }
            .prediction-table thead th,
            .prediction-table tbody td {
                padding: 10px 8px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap: 28px;
                --section-gap-sm: 20px;
            }
            .container {
                padding: 0 16px;
            }
            .page-banner {
                min-height: 180px;
            }
            .page-banner-title {
                font-size: 1.3rem;
            }
            .page-banner-subtitle {
                font-size: 0.85rem;
                display: none;
            }
            .page-banner-content {
                padding: 30px 0;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .stats-row {
                gap: 8px;
            }
            .stat-item {
                min-width: 70px;
                flex: 1 1 70px;
                max-width: 110px;
                padding: 12px 8px;
                border-radius: var(--radius-md);
            }
            .stat-number {
                font-size: 1.25rem;
            }
            .stat-label {
                font-size: 0.7rem;
            }
            .card {
                padding: 18px 14px;
            }
            .cta-section {
                padding: 40px 0;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-btn-lg,
            .cta-btn-outline-lg {
                padding: 12px 24px;
                font-size: 0.9rem;
                display: block;
                width: 100%;
                max-width: 280px;
                margin: 8px auto;
                justify-content: center;
            }
            .cta-btn-outline-lg {
                margin-left: auto;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 0.85rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
            .analysis-card-img {
                height: 140px;
            }
            .expert-avatar {
                width: 60px;
                height: 60px;
            }
            .prediction-table {
                min-width: 440px;
                font-size: 0.72rem;
            }
            .prediction-table thead th,
            .prediction-table tbody td {
                padding: 8px 5px;
            }
            .logo-text {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a3a5c;
            --color-primary-light: #234b75;
            --color-accent: #c8963e;
            --color-accent-light: #d4a855;
            --color-accent-dark: #a87a2e;
            --color-bg: #f8f9fb;
            --color-white: #ffffff;
            --color-text: #1e2d3d;
            --color-text-soft: #5a6878;
            --color-text-muted: #8895a7;
            --color-border: #e2e7ef;
            --color-border-light: #eef1f6;
            --color-card-bg: #ffffff;
            --color-footer-bg: #0f1f30;
            --color-footer-text: rgba(255, 255, 255, 0.7);
            --color-overlay: rgba(10, 25, 45, 0.62);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 14px 44px rgba(0, 0, 0, 0.12);
            --space-xs: 0.5rem;
            --space-sm: 0.75rem;
            --space-md: 1.25rem;
            --space-lg: 2rem;
            --space-xl: 3rem;
            --space-2xl: 4.5rem;
            --space-3xl: 6rem;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Segoe UI', sans-serif;
            --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: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
        }

        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;
            border: none;
            outline: none;
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-lg);
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 var(--space-md);
            }
        }

        /* ===== HEADER ===== */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }

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

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.7rem 0;
            flex-wrap: nowrap;
            gap: var(--space-md);
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-white);
            font-size: 1.1rem;
            font-weight: 700;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--color-accent);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 0.15rem;
            flex-wrap: nowrap;
        }

        .nav-link {
            display: inline-block;
            padding: 0.5rem 0.9rem;
            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, 58, 92, 0.05);
        }

        .nav-link.active {
            color: var(--color-accent-dark);
            font-weight: 600;
            background: rgba(200, 150, 62, 0.07);
        }

        .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;
            gap: 0.35rem;
            padding: 0.55rem 1.2rem;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-white);
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
            border-radius: 50px;
            white-space: nowrap;
            transition: all var(--transition-normal);
            box-shadow: 0 2px 10px rgba(200, 150, 62, 0.3);
            margin-left: 0.4rem;
        }

        .nav-cta-btn:hover {
            background: linear-gradient(135deg, var(--color-accent-dark), var(--color-accent));
            box-shadow: 0 4px 18px rgba(200, 150, 62, 0.45);
            transform: translateY(-1px);
            color: var(--color-white);
        }

        .nav-cta-btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.5rem 1.1rem;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-primary);
            border: 1.5px solid var(--color-border);
            border-radius: 50px;
            white-space: nowrap;
            transition: all var(--transition-normal);
            margin-left: 0.25rem;
        }

        .nav-cta-btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-dark);
            background: rgba(200, 150, 62, 0.04);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 0.4rem;
            cursor: pointer;
            line-height: 1;
        }

        @media (max-width: 1024px) {
            .nav-main {
                gap: 0;
            }
            .nav-link {
                padding: 0.45rem 0.6rem;
                font-size: 0.82rem;
            }
            .nav-cta-btn {
                padding: 0.45rem 0.9rem;
                font-size: 0.8rem;
            }
            .nav-cta-btn-outline {
                padding: 0.4rem 0.8rem;
                font-size: 0.78rem;
            }
            .logo-text {
                font-size: 1.15rem;
            }
        }

        @media (max-width: 768px) {
            .hamburger-btn {
                display: block;
            }
            .nav-main {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                align-items: stretch;
                padding: 0.8rem 1.5rem 1.5rem;
                gap: 0.4rem;
                border-bottom: 2px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-main.open {
                display: flex;
            }
            .nav-link {
                padding: 0.7rem 1rem;
                font-size: 0.95rem;
                border-radius: var(--radius-md);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-cta-btn,
            .nav-cta-btn-outline {
                margin-left: 0;
                justify-content: center;
                text-align: center;
                padding: 0.7rem 1rem;
                font-size: 0.95rem;
                border-radius: var(--radius-md);
            }
            .nav-cta-btn-outline {
                border-radius: var(--radius-md);
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
        }

        /* ===== BANNER ===== */
        .page-banner {
            position: relative;
            background: url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--color-overlay);
            z-index: 1;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            color: var(--color-white);
            padding: var(--space-2xl) var(--space-lg);
            max-width: 800px;
        }

        .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 0.4rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: var(--space-md);
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .banner-content h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            letter-spacing: 0.03em;
            line-height: 1.3;
        }

        .banner-content .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
            max-width: 600px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 320px;
            }
            .banner-content h1 {
                font-size: 1.8rem;
            }
            .banner-content .banner-subtitle {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .page-banner {
                min-height: 260px;
            }
            .banner-content h1 {
                font-size: 1.45rem;
            }
            .banner-content .banner-subtitle {
                font-size: 0.85rem;
            }
            .banner-badge {
                font-size: 0.75rem;
                padding: 0.3rem 0.9rem;
            }
        }

        /* ===== MAIN CONTENT ===== */
        .main-content {
            padding: var(--space-2xl) 0;
        }

        .section-block {
            padding: var(--space-2xl) 0;
        }

        .section-block+.section-block {
            border-top: 1px solid var(--color-border-light);
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 0.5rem;
            letter-spacing: 0.02em;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            margin-bottom: var(--space-xl);
            max-width: 600px;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--space-xl);
        }

        .section-header .section-title {
            margin-bottom: 0.35rem;
        }

        /* ===== CARDS ===== */
        .card-guide {
            background: var(--color-card-bg);
            border-radius: var(--radius-lg);
            padding: var(--space-xl);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .card-guide .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: var(--space-md);
            flex-shrink: 0;
        }

        .card-guide .card-icon.blue {
            background: rgba(26, 58, 92, 0.08);
            color: var(--color-primary);
        }

        .card-guide .card-icon.gold {
            background: rgba(200, 150, 62, 0.1);
            color: var(--color-accent-dark);
        }

        .card-guide .card-icon.teal {
            background: rgba(20, 140, 130, 0.08);
            color: #148c82;
        }

        .card-guide h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 0.5rem;
        }

        .card-guide p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.65;
            flex-grow: 1;
        }

        .card-guide .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-accent-dark);
            margin-top: var(--space-md);
            transition: gap var(--transition-fast);
        }

        .card-guide .card-link:hover {
            gap: 0.6rem;
            color: var(--color-accent);
        }

        .card-image-top {
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            overflow: hidden;
            margin: calc(-1 * var(--space-xl)) calc(-1 * var(--space-xl)) var(--space-md);
            height: 180px;
        }

        .card-image-top img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        /* ===== STEPS ===== */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-lg);
        }

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

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

        .step-number {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: var(--color-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
        }

        .step-body h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 0.3rem;
        }

        .step-body p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }

        @media (max-width: 520px) {
            .step-item {
                flex-direction: column;
                gap: var(--space-md);
                padding: var(--space-md);
            }
            .step-number {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
        }

        /* ===== INFO TABLE ===== */
        .info-table-wrap {
            overflow-x: auto;
            margin: var(--space-lg) 0;
        }

        .info-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--color-card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            min-width: 600px;
        }

        .info-table thead th {
            background: var(--color-primary);
            color: var(--color-white);
            padding: 0.9rem 1.2rem;
            font-weight: 600;
            font-size: 0.9rem;
            text-align: left;
        }

        .info-table tbody td {
            padding: 0.85rem 1.2rem;
            font-size: 0.88rem;
            color: var(--color-text-soft);
            border-bottom: 1px solid var(--color-border-light);
        }

        .info-table tbody tr:last-child td {
            border-bottom: none;
        }

        .info-table tbody tr:hover {
            background: rgba(26, 58, 92, 0.02);
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
            max-width: 850px;
            margin: 0 auto;
        }

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

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.1rem 1.4rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            background: none;
            text-align: left;
            cursor: pointer;
            border: none;
            gap: var(--space-md);
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(26, 58, 92, 0.02);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--color-accent);
            transition: transform var(--transition-normal);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 1.4rem;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.4rem 1.2rem;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(160deg, var(--color-primary) 0%, #0d2640 100%);
            border-radius: var(--radius-xl);
            padding: var(--space-2xl) var(--space-xl);
            text-align: center;
            color: var(--color-white);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            background: rgba(255, 255, 255, 0.025);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h3 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: var(--space-lg);
            position: relative;
            z-index: 1;
        }

        .cta-btn-group {
            display: flex;
            gap: var(--space-md);
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-white);
            border-radius: 50px;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-md);
            border: none;
            cursor: pointer;
        }

        .btn-primary-lg:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            background: #fefefe;
        }

        .btn-outline-lg {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 1.8rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-white);
            border: 2px solid rgba(255, 255, 255, 0.5);
            border-radius: 50px;
            transition: all var(--transition-normal);
            background: transparent;
            cursor: pointer;
        }

        .btn-outline-lg:hover {
            border-color: var(--color-white);
            background: rgba(255, 255, 255, 0.08);
            color: var(--color-white);
        }

        @media (max-width: 520px) {
            .cta-section {
                padding: var(--space-xl) var(--space-md);
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
            .btn-primary-lg,
            .btn-outline-lg {
                padding: 0.7rem 1.4rem;
                font-size: 0.88rem;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== HIGHLIGHT BOX ===== */
        .highlight-box {
            background: linear-gradient(135deg, rgba(200, 150, 62, 0.06), rgba(200, 150, 62, 0.02));
            border: 1px solid rgba(200, 150, 62, 0.2);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            margin: var(--space-lg) 0;
        }

        .highlight-box h4 {
            font-family: var(--font-heading);
            color: var(--color-accent-dark);
            font-weight: 700;
            margin-bottom: 0.4rem;
        }

        .highlight-box p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin: 0;
        }

        /* ===== STAT MINI ===== */
        .stat-mini-row {
            display: flex;
            gap: var(--space-lg);
            flex-wrap: wrap;
            justify-content: center;
            margin: var(--space-lg) 0;
        }

        .stat-mini {
            text-align: center;
            padding: var(--space-md) var(--space-lg);
            background: var(--color-card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            min-width: 120px;
        }

        .stat-mini .stat-num {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent-dark);
            display: block;
        }

        .stat-mini .stat-label {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: 0.2rem;
        }

        @media (max-width: 520px) {
            .stat-mini-row {
                gap: var(--space-sm);
            }
            .stat-mini {
                min-width: 80px;
                padding: var(--space-sm) var(--space-md);
            }
            .stat-mini .stat-num {
                font-size: 1.5rem;
            }
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--color-footer-bg);
            color: var(--color-footer-text);
            padding: var(--space-2xl) 0 var(--space-lg);
            margin-top: var(--space-2xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: var(--space-xl);
            margin-bottom: var(--space-xl);
        }

        .footer-brand .logo-text-footer {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--color-white);
            display: inline-block;
            margin-bottom: var(--space-sm);
        }

        .footer-brand .logo-text-footer span {
            color: var(--color-accent-light);
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.6;
            margin-bottom: var(--space-md);
            color: var(--color-footer-text);
        }

        .footer-social {
            display: flex;
            gap: var(--space-sm);
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }

        .footer-social a:hover {
            background: var(--color-accent);
            color: var(--color-white);
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-white);
            margin-bottom: var(--space-md);
            letter-spacing: 0.02em;
        }

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--color-footer-text);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--space-lg);
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-lg);
            }
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }
            .footer-brand {
                text-align: center;
            }
            .footer-social {
                justify-content: center;
            }
            .footer-col {
                text-align: center;
            }
        }

        /* ===== Foundation override ===== */
        .row {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }

        .row .row {
            max-width: none;
        }

        @media (max-width: 768px) {
            .row .columns {
                margin-bottom: var(--space-lg);
            }
            .row .columns:last-child {
                margin-bottom: 0;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-lg {
            margin-top: var(--space-xl);
        }
        .mb-lg {
            margin-bottom: var(--space-xl);
        }
        .mt-xl {
            margin-top: var(--space-2xl);
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1a3c6e;
            --color-primary-light: #2a5298;
            --color-primary-dark: #0f2447;
            --color-accent: #c8a44e;
            --color-accent-light: #e0c878;
            --color-accent-dark: #a07a2e;
            --color-bg: #f8f9fb;
            --color-white: #ffffff;
            --color-text: #1e2a3a;
            --color-text-secondary: #5a6978;
            --color-text-muted: #8895a3;
            --color-border: #e2e7ed;
            --color-border-light: #eef1f5;
            --color-success: #2e7d5b;
            --color-warning: #d4a017;
            --color-danger: #c0392b;
            --color-info: #3a7bd5;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
            --transition-fast: 0.18s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.45s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1280px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
        }

        p {
            margin: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

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

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }

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

        .logo-text {
            font-size: 1.45rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-primary);
            font-family: var(--font-heading);
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--color-accent);
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: -0.01em;
        }

        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(26, 60, 110, 0.04);
        }

        .nav-link.active {
            color: var(--color-primary);
            font-weight: 700;
            background: rgba(26, 60, 110, 0.07);
        }

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

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 25px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff !important;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 3px 14px rgba(200, 164, 78, 0.35);
            letter-spacing: -0.01em;
        }

        .nav-cta-btn:hover {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            box-shadow: 0 6px 22px rgba(200, 164, 78, 0.5);
            transform: translateY(-1px);
            color: #fff !important;
        }

        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(200, 164, 78, 0.3);
        }

        .nav-cta-btn-outline {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: 25px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-primary) !important;
            border: 2px solid var(--color-border);
            transition: all var(--transition-base);
            white-space: nowrap;
            background: transparent;
            letter-spacing: -0.01em;
        }

        .nav-cta-btn-outline:hover {
            border-color: var(--color-primary);
            background: rgba(26, 60, 110, 0.03);
            color: var(--color-primary) !important;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 6px;
            cursor: pointer;
            line-height: 1;
        }

        @media (max-width: 1100px) {
            .nav-link {
                padding: 8px 10px;
                font-size: 0.84rem;
            }

            .nav-cta-btn,
            .nav-cta-btn-outline {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 920px) {
            .nav-main {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--color-white);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 20px 24px;
                transform: translateX(100%);
                transition: transform var(--transition-slow);
                z-index: 999;
                overflow-y: auto;
            }

            .nav-main.mobile-open {
                transform: translateX(0);
            }

            .nav-link {
                padding: 14px 18px;
                font-size: 1rem;
                border-radius: var(--radius-md);
                justify-content: center;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-link.active {
                border-left: 4px solid var(--color-accent);
                border-radius: var(--radius-md);
            }

            .nav-cta-btn,
            .nav-cta-btn-outline {
                justify-content: center;
                text-align: center;
                padding: 14px 20px;
                font-size: 1rem;
                border-radius: var(--radius-md);
            }

            .nav-cta-btn-outline {
                border-radius: var(--radius-md);
            }

            .mobile-menu-toggle {
                display: block;
            }

            .header-inner {
                padding: 0 18px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 14px;
            }

            .logo-text {
                font-size: 1.2rem;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
        }

        /* ===== 页面 Hero Banner ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(170deg, #0f2447 0%, #1a3c6e 40%, #1e4d8c 100%);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            padding: 80px 0 70px;
            text-align: center;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 36, 71, 0.55);
            z-index: 1;
        }

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

        .page-hero-badge {
            display: inline-block;
            padding: 7px 18px;
            border-radius: 25px;
            background: rgba(255, 255, 255, 0.12);
            color: var(--color-accent-light);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .page-hero h1 span {
            color: var(--color-accent-light);
        }

        .page-hero .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.7;
            font-weight: 400;
        }

        .page-hero .hero-stats-row {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .page-hero .hero-stat-item {
            text-align: center;
            min-width: 90px;
        }

        .page-hero .hero-stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent-light);
            line-height: 1;
        }

        .page-hero .hero-stat-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 55px 0 50px;
            }

            .page-hero h1 {
                font-size: 2rem;
            }

            .page-hero .hero-subtitle {
                font-size: 1rem;
            }

            .page-hero .hero-stats-row {
                gap: 24px;
            }

            .page-hero .hero-stat-num {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }

            .page-hero .hero-stats-row {
                gap: 16px;
            }

            .page-hero .hero-stat-num {
                font-size: 1.4rem;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 70px 0;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header .section-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 25px;
            background: rgba(200, 164, 78, 0.1);
            color: var(--color-accent-dark);
            font-weight: 700;
            font-size: 0.82rem;
            letter-spacing: 0.05em;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }

        .section-header .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }

            .section-header h2 {
                font-size: 1.6rem;
            }

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

        @media (max-width: 520px) {
            .section {
                padding: 36px 0;
            }

            .section-header h2 {
                font-size: 1.35rem;
            }
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }

        .card-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        @media (max-width: 1024px) {
            .card-grid.cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }

            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 600px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .card-grid.cols-3,
            .card-grid.cols-4 {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 分析卡片 ===== */
        .analysis-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 32px 26px 26px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .analysis-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

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

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

        .analysis-card .card-icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(26, 60, 110, 0.08), rgba(42, 82, 152, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--color-primary);
            margin-bottom: 18px;
            transition: all var(--transition-base);
        }

        .analysis-card:hover .card-icon-circle {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            box-shadow: 0 8px 24px rgba(26, 60, 110, 0.3);
        }

        .analysis-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }

        .analysis-card p {
            font-size: 0.94rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

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

        .analysis-card .card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 15px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(26, 60, 110, 0.05);
            color: var(--color-primary);
            letter-spacing: 0.02em;
        }

        /* ===== 数据指标表格卡片 ===== */
        .data-metrics-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
        }

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

        .metric-card .metric-icon {
            font-size: 2rem;
            margin-bottom: 10px;
            color: var(--color-accent);
        }

        .metric-card .metric-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }

        .metric-card .metric-num small {
            font-size: 1.1rem;
        }

        .metric-card .metric-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        .metric-card .metric-trend {
            display: inline-block;
            margin-top: 8px;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 700;
        }

        .metric-card .metric-trend.up {
            background: rgba(46, 125, 91, 0.1);
            color: var(--color-success);
        }

        .metric-card .metric-trend.stable {
            background: rgba(58, 123, 213, 0.1);
            color: var(--color-info);
        }

        @media (max-width: 1024px) {
            .data-metrics-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .data-metrics-row {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .metric-card {
                padding: 20px 14px;
            }

            .metric-card .metric-num {
                font-size: 2rem;
            }
        }

        /* ===== 图文区块 ===== */
        .media-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .media-block.reverse {
            direction: rtl;
        }

        .media-block.reverse>* {
            direction: ltr;
        }

        .media-block .media-image-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .media-block .media-image-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-lg);
            transition: transform var(--transition-slow);
        }

        .media-block .media-image-wrap:hover img {
            transform: scale(1.04);
        }

        .media-block .media-content h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--color-text);
            letter-spacing: -0.015em;
        }

        .media-block .media-content p {
            font-size: 1rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .media-block .media-content .feature-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 16px;
        }

        .media-block .media-content .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.6;
        }

        .media-block .media-content .feature-list li i {
            color: var(--color-accent);
            font-size: 1.1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .media-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .media-block.reverse {
                direction: ltr;
            }

            .media-block .media-content h3 {
                font-size: 1.35rem;
            }
        }

        /* ===== 案例列表 ===== */
        .case-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .case-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }

        .case-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateX(4px);
        }

        .case-item .case-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .case-item .case-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 2px;
        }

        .case-item .case-info span {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .case-item .case-badge {
            margin-left: auto;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 700;
            background: rgba(46, 125, 91, 0.08);
            color: var(--color-success);
            white-space: nowrap;
            flex-shrink: 0;
        }

        @media (max-width: 520px) {
            .case-item {
                flex-wrap: wrap;
                gap: 12px;
            }

            .case-item .case-badge {
                margin-left: 0;
            }
        }

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

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

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            background: none;
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: left;
            gap: 12px;
        }

        .faq-question i {
            transition: transform var(--transition-base);
            color: var(--color-text-muted);
            flex-shrink: 0;
        }

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

        .faq-item.active .faq-question {
            color: var(--color-primary);
            background: rgba(26, 60, 110, 0.02);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 0.94rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        /* ===== CTA 板块 ===== */
        .cta-section {
            background: linear-gradient(160deg, #1a3c6e 0%, #0f2447 100%);
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 70px 0;
            text-align: center;
            color: #fff;
            position: relative;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 36, 71, 0.6);
            z-index: 1;
        }

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

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 550px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .cta-btn-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 36px;
            border-radius: 30px;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff !important;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            box-shadow: 0 8px 30px rgba(200, 164, 78, 0.4);
            transition: all var(--transition-base);
            letter-spacing: -0.01em;
        }

        .cta-btn-large:hover {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            box-shadow: 0 12px 38px rgba(200, 164, 78, 0.55);
            transform: translateY(-3px);
            color: #fff !important;
        }

        .cta-btn-large:active {
            transform: translateY(0);
        }

        @media (max-width: 520px) {
            .cta-section h2 {
                font-size: 1.5rem;
            }

            .cta-btn-large {
                padding: 14px 28px;
                font-size: 1rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f1a2e;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
            font-size: 0.92rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo-text-footer {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            display: inline-block;
            margin-bottom: 12px;
        }

        .footer-brand .logo-text-footer span {
            color: var(--color-accent-light);
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.7;
            margin-bottom: 14px;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            transition: all var(--transition-fast);
            font-size: 1rem;
        }

        .footer-social a:hover {
            background: var(--color-accent);
            color: #fff;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.35);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 600px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .site-footer {
                padding: 40px 0 0;
            }
        }

        /* ===== 按钮通用 ===== */
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 25px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-primary);
            border: 2px solid var(--color-border);
            background: transparent;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .btn-outline:hover {
            border-color: var(--color-primary);
            background: rgba(26, 60, 110, 0.03);
        }

        .btn-solid {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 25px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            background: var(--color-primary);
            transition: all var(--transition-base);
            cursor: pointer;
            box-shadow: var(--shadow-sm);
        }

        .btn-solid:hover {
            background: var(--color-primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: #fff;
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 4px;
            border-radius: 2px;
            background: var(--color-accent);
            margin: 16px auto;
        }

        /* ===== 图片遮罩效果 ===== */
        .img-hover-zoom {
            overflow: hidden;
            border-radius: var(--radius-lg);
            display: block;
        }

        .img-hover-zoom img {
            transition: transform var(--transition-slow);
        }

        .img-hover-zoom:hover img {
            transform: scale(1.06);
        }

        /* ===== 补充响应式 ===== */
        @media (max-width: 768px) {
            .hide-mobile {
                display: none !important;
            }
        }

        @media (min-width: 769px) {
            .show-mobile {
                display: none !important;
            }
        }