/* roulang page: index */
:root {
            --brand-primary: #0b4fa0;
            --brand-primary-dark: #083b7a;
            --brand-primary-light: #1a7ed1;
            --brand-secondary: #00a8ff;
            --brand-accent: #ff7a00;
            --brand-bg: #ffffff;
            --brand-bg-soft: #f4f7fb;
            --brand-bg-deep: #0a1f3c;
            --brand-text: #16233a;
            --brand-text-soft: #4a5a70;
            --brand-text-weak: #7b8ba5;
            --brand-border: #e4eaf2;
            --brand-radius: 14px;
            --brand-radius-sm: 8px;
            --brand-radius-lg: 20px;
            --brand-shadow-sm: 0 1px 4px rgba(10,30,60,0.06);
            --brand-shadow: 0 4px 20px rgba(10,30,60,0.08);
            --brand-shadow-lg: 0 8px 36px rgba(10,30,60,0.12);
            --brand-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --brand-transition: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--brand-font);
            color: var(--brand-text);
            background: var(--brand-bg);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: var(--brand-primary);
            transition: var(--brand-transition);
        }
        a:hover {
            color: var(--brand-primary-dark);
        }

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

        .container {
            max-width: 1200px;
        }

        .container-wide {
            max-width: 1320px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background: var(--brand-bg);
            border-bottom: 1px solid var(--brand-border);
            box-shadow: 0 2px 12px rgba(10,30,60,0.05);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--brand-transition);
        }
        .site-header .navbar {
            padding: 12px 0;
            flex-wrap: wrap;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
        }
        .navbar-brand:hover {
            color: var(--brand-primary-dark);
        }
        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            color: var(--brand-text-soft);
            padding: 8px 16px !important;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: var(--brand-transition);
            white-space: nowrap;
        }
        .navbar-nav .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-bg-soft);
        }
        .navbar-nav .nav-link.active {
            color: var(--brand-primary);
            background: rgba(11,79,160,0.08);
        }
        .nav-search-box {
            display: flex;
            align-items: center;
            border: 1.5px solid var(--brand-border);
            border-radius: 24px;
            padding: 5px 12px 5px 16px;
            background: #fff;
            gap: 8px;
            transition: var(--brand-transition);
            min-width: 180px;
        }
        .nav-search-box:focus-within {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(11,79,160,0.1);
        }
        .nav-search-box input {
            border: none;
            outline: none;
            font-size: 0.9rem;
            width: 140px;
            color: var(--brand-text);
            background: transparent;
        }
        .nav-search-box input::placeholder {
            color: var(--brand-text-weak);
        }
        .nav-search-box button {
            background: none;
            border: none;
            color: var(--brand-text-weak);
            cursor: pointer;
            padding: 4px;
            font-size: 0.95rem;
        }
        .nav-cta-btn {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--brand-transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-cta-btn:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11,79,160,0.3);
        }
        .navbar-toggler {
            border: 1px solid var(--brand-border);
            border-radius: 8px;
            padding: 6px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(11,79,160,0.15);
            outline: none;
        }

        /* ========== Section Base ========== */
        .section-pad {
            padding: 72px 0;
        }
        .section-pad-tight {
            padding: 48px 0;
        }
        .section-title-wrap {
            margin-bottom: 40px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(11,79,160,0.08);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 0.82rem;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-weight: 800;
            font-size: 2.1rem;
            line-height: 1.3;
            color: var(--brand-text);
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--brand-text-soft);
            max-width: 720px;
            line-height: 1.8;
        }
        .section-desc-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .text-center-mobile {
            text-align: center;
        }

        /* ========== Buttons ========== */
        .btn-brand {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(11,79,160,0.3);
        }
        .btn-brand-outline {
            background: transparent;
            color: var(--brand-primary);
            border: 2px solid var(--brand-primary);
            border-radius: 30px;
            padding: 10px 26px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand-outline:hover {
            background: var(--brand-primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(11,79,160,0.25);
        }
        .btn-accent {
            background: var(--brand-accent);
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--brand-transition);
        }
        .btn-accent:hover {
            background: #e06d00;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(255,122,0,0.35);
        }
        .btn-white-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.6);
            border-radius: 30px;
            padding: 10px 26px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--brand-transition);
        }
        .btn-white-outline:hover {
            background: #fff;
            color: var(--brand-primary);
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* ========== Cards ========== */
        .brand-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            padding: 28px 24px;
            box-shadow: var(--brand-shadow-sm);
            transition: var(--brand-transition);
            height: 100%;
        }
        .brand-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--brand-shadow-lg);
            border-color: rgba(11,79,160,0.25);
        }
        .brand-card .card-icon {
            width: 52px;
            height: 52px;
            background: rgba(11,79,160,0.1);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--brand-primary);
            margin-bottom: 18px;
        }
        .brand-card h3 {
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--brand-text);
        }
        .brand-card p {
            color: var(--brand-text-soft);
            font-size: 0.95rem;
            margin-bottom: 0;
            line-height: 1.75;
        }

        /* ========== Hero ========== */
        .hero-section {
            background: var(--brand-bg-deep);
            background-image: linear-gradient(135deg, rgba(10,31,60,0.92) 0%, rgba(11,79,160,0.85) 60%, rgba(26,126,209,0.75) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 90px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(255,255,255,1) 0%, rgba(255,255,255,0) 100%);
            pointer-events: none;
            z-index: 1;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.14);
            border: 1px solid rgba(255,255,255,0.25);
            color: #fff;
            padding: 6px 18px;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            backdrop-filter: blur(8px);
            margin-bottom: 24px;
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero-title .highlight {
            color: #7dd3fc;
            position: relative;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.88);
            max-width: 700px;
            line-height: 1.85;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }
        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 24px 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.18);
        }
        .hero-metric {
            color: #fff;
        }
        .hero-metric .metric-num {
            font-size: 2rem;
            font-weight: 900;
            display: block;
            line-height: 1.2;
            color: #7dd3fc;
        }
        .hero-metric .metric-label {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.7);
        }

        /* Hero promo card */
        .hero-promo-card {
            background: #fff;
            border-radius: var(--brand-radius-lg);
            padding: 32px 28px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.35);
            border: 1px solid rgba(255,255,255,0.3);
        }
        .hero-promo-card .promo-tag {
            background: var(--brand-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: 0.05em;
        }
        .hero-promo-card h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--brand-text);
            margin: 12px 0 8px;
        }
        .hero-promo-card p {
            color: var(--brand-text-soft);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .hero-promo-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .hero-promo-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            color: var(--brand-text-soft);
            font-size: 0.92rem;
            border-bottom: 1px solid var(--brand-border);
        }
        .hero-promo-list li:last-child {
            border-bottom: none;
        }
        .hero-promo-list li i {
            color: var(--brand-primary);
            font-size: 0.9rem;
        }
        .promo-price {
            display: flex;
            align-items: baseline;
            gap: 12px;
            margin-bottom: 20px;
        }
        .promo-price .current-price {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--brand-primary);
        }
        .promo-price .original-price {
            font-size: 1rem;
            color: var(--brand-text-weak);
            text-decoration: line-through;
        }
        .promo-price .discount-badge {
            background: var(--brand-accent);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 14px;
        }

        /* ========== Countdown Bar ========== */
        .countdown-section {
            background: linear-gradient(90deg, #0a1f3c 0%, #0b4fa0 100%);
            padding: 18px 0;
            position: relative;
            z-index: 3;
        }
        .countdown-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px 28px;
            color: #fff;
        }
        .countdown-label {
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .countdown-timer {
            display: flex;
            gap: 8px;
        }
        .countdown-timer .time-block {
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: 8px;
            padding: 6px 12px;
            text-align: center;
            min-width: 56px;
        }
        .countdown-timer .time-num {
            font-size: 1.5rem;
            font-weight: 900;
            display: block;
            line-height: 1.2;
        }
        .countdown-timer .time-unit {
            font-size: 0.7rem;
            color: rgba(255,255,255,0.7);
            text-transform: uppercase;
        }
        .countdown-cta {
            background: var(--brand-accent);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 8px 20px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--brand-transition);
        }
        .countdown-cta:hover {
            background: #e06d00;
            color: #fff;
            transform: translateY(-1px);
        }

        /* ========== Flash Sale Rail ========== */
        .flash-sale-section {
            background: var(--brand-bg-soft);
        }
        .flash-rail {
            display: flex;
            overflow-x: auto;
            gap: 20px;
            padding: 8px 4px 16px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .flash-rail::-webkit-scrollbar {
            height: 6px;
        }
        .flash-rail::-webkit-scrollbar-thumb {
            background: #c8d4e3;
            border-radius: 3px;
        }
        .flash-card {
            min-width: 280px;
            max-width: 320px;
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            padding: 22px 20px;
            box-shadow: var(--brand-shadow-sm);
            scroll-snap-align: start;
            transition: var(--brand-transition);
            flex-shrink: 0;
            position: relative;
        }
        .flash-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--brand-shadow-lg);
        }
        .flash-card .stock-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            background: #ff4757;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: 0.04em;
        }
        .flash-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--brand-text);
        }
        .flash-card p {
            font-size: 0.88rem;
            color: var(--brand-text-soft);
            margin-bottom: 14px;
        }
        .flash-card .flash-price-row {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .flash-card .flash-price {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--brand-primary);
        }
        .flash-card .flash-price-old {
            color: var(--brand-text-weak);
            text-decoration: line-through;
            font-size: 0.9rem;
        }
        .flash-card .btn-grab {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 20px;
            padding: 8px 18px;
            font-weight: 700;
            font-size: 0.88rem;
            width: 100%;
            transition: var(--brand-transition);
        }
        .flash-card .btn-grab:hover {
            background: var(--brand-primary-dark);
            color: #fff;
        }
        .flash-card .btn-grab:disabled {
            background: #b0c0d0;
            cursor: not-allowed;
        }

        /* ========== Scene Demo ========== */
        .scene-section {
            background: #fff;
        }
        .scene-item {
            display: flex;
            gap: 28px;
            align-items: flex-start;
            padding: 28px 0;
            border-bottom: 1px solid var(--brand-border);
        }
        .scene-item:last-child {
            border-bottom: none;
        }
        .scene-icon-wrap {
            width: 56px;
            height: 56px;
            background: var(--brand-bg-soft);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--brand-primary);
            flex-shrink: 0;
        }
        .scene-content h3 {
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 8px;
            color: var(--brand-text);
        }
        .scene-content p {
            color: var(--brand-text-soft);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .scene-content .scene-tags {
            margin-top: 10px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .scene-content .scene-tags span {
            background: rgba(11,79,160,0.07);
            color: var(--brand-primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 16px;
        }

        /* ========== Stats / Metrics ========== */
        .stats-section {
            background: var(--brand-bg-deep);
            background-image: linear-gradient(135deg, #0a1f3c 0%, #0b3d7a 100%);
            padding: 56px 0;
        }
        .stat-block {
            text-align: center;
            color: #fff;
            padding: 20px 10px;
        }
        .stat-block .stat-num {
            font-size: 2.8rem;
            font-weight: 900;
            color: #7dd3fc;
            line-height: 1.2;
            display: block;
        }
        .stat-block .stat-label {
            font-size: 0.92rem;
            color: rgba(255,255,255,0.7);
            margin-top: 6px;
        }

        /* ========== Social Proof ========== */
        .social-proof-section {
            background: var(--brand-bg-soft);
        }
        .testimonial-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            padding: 24px;
            box-shadow: var(--brand-shadow-sm);
            height: 100%;
            transition: var(--brand-transition);
        }
        .testimonial-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--brand-shadow-lg);
        }
        .testimonial-stars {
            color: #f5a623;
            font-size: 0.9rem;
            margin-bottom: 12px;
        }
        .testimonial-text {
            color: var(--brand-text-soft);
            font-size: 0.95rem;
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-author .avatar {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .testimonial-author .author-info .name {
            font-weight: 700;
            font-size: 0.92rem;
            color: var(--brand-text);
        }
        .testimonial-author .author-info .title {
            font-size: 0.8rem;
            color: var(--brand-text-weak);
        }

        /* ========== Zone Section ========== */
        .zone-section {
            background: #fff;
        }
        .zone-card {
            display: block;
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            overflow: hidden;
            box-shadow: var(--brand-shadow-sm);
            transition: var(--brand-transition);
            height: 100%;
            position: relative;
        }
        .zone-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--brand-shadow-lg);
            border-color: rgba(11,79,160,0.25);
        }
        .zone-card .zone-img {
            height: 160px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .zone-card .zone-img::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(to top, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0) 100%);
        }
        .zone-card .zone-img .zone-name-img {
            position: absolute;
            bottom: 12px;
            left: 16px;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            z-index: 1;
        }
        .zone-card .zone-body {
            padding: 18px 20px;
        }
        .zone-card .zone-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 8px;
        }
        .zone-card .zone-body p {
            font-size: 0.88rem;
            color: var(--brand-text-soft);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== News Section ========== */
        .news-section {
            background: var(--brand-bg-soft);
        }
        .news-list-item {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            padding: 20px 24px;
            margin-bottom: 16px;
            transition: var(--brand-transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .news-list-item:hover {
            box-shadow: var(--brand-shadow);
            border-color: rgba(11,79,160,0.2);
            transform: translateY(-2px);
        }
        .news-date {
            background: var(--brand-bg-soft);
            border-radius: 10px;
            padding: 8px 12px;
            text-align: center;
            min-width: 60px;
            flex-shrink: 0;
        }
        .news-date .day {
            font-size: 1.4rem;
            font-weight: 900;
            color: var(--brand-primary);
            display: block;
            line-height: 1.2;
        }
        .news-date .month {
            font-size: 0.78rem;
            color: var(--brand-text-weak);
            font-weight: 600;
        }
        .news-content {
            flex: 1;
        }
        .news-content h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 6px;
        }
        .news-content p {
            font-size: 0.9rem;
            color: var(--brand-text-soft);
            margin-bottom: 10px;
            line-height: 1.65;
        }
        .news-content .btn-read-more {
            background: none;
            border: none;
            padding: 0;
            color: var(--brand-primary);
            font-weight: 600;
            font-size: 0.88rem;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--brand-transition);
        }
        .news-content .btn-read-more:hover {
            color: var(--brand-primary-dark);
            gap: 8px;
        }
        .news-sidebar-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            padding: 20px;
            box-shadow: var(--brand-shadow-sm);
            margin-bottom: 16px;
        }
        .news-sidebar-card h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 14px;
            color: var(--brand-text);
        }
        .news-sidebar-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .news-sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--brand-border);
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--brand-text-soft);
        }
        .news-sidebar-list li:last-child {
            border-bottom: none;
        }
        .news-sidebar-list li i {
            color: var(--brand-primary);
            font-size: 0.7rem;
        }

        /* ========== Brand Intro ========== */
        .brand-intro-section {
            background: #fff;
        }
        .brand-intro-card {
            background: var(--brand-bg-soft);
            border-radius: var(--brand-radius-lg);
            padding: 40px 36px;
            border: 1px solid var(--brand-border);
            display: flex;
            gap: 36px;
            align-items: center;
            flex-wrap: wrap;
        }
        .brand-intro-text {
            flex: 1;
            min-width: 280px;
        }
        .brand-intro-text h2 {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--brand-text);
            margin-bottom: 16px;
        }
        .brand-intro-text p {
            color: var(--brand-text-soft);
            font-size: 1rem;
            line-height: 1.9;
            margin-bottom: 12px;
        }
        .brand-intro-img {
            flex: 0 0 240px;
            border-radius: var(--brand-radius);
            overflow: hidden;
            box-shadow: var(--brand-shadow-lg);
        }
        .brand-intro-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        /* ========== Hot Topics ========== */
        .hot-topics-section {
            background: var(--brand-bg-soft);
        }
        .topic-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            padding: 10px 0;
        }
        .topic-tag {
            background: #fff;
            border: 1.5px solid var(--brand-border);
            border-radius: 24px;
            padding: 10px 22px;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--brand-text-soft);
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topic-tag:hover {
            background: var(--brand-primary);
            color: #fff;
            border-color: var(--brand-primary);
            transform: translateY(-2px);
            box-shadow: var(--brand-shadow);
        }

        /* ========== Experts ========== */
        .experts-section {
            background: #fff;
        }
        .expert-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            padding: 24px 20px;
            box-shadow: var(--brand-shadow-sm);
            text-align: center;
            height: 100%;
            transition: var(--brand-transition);
        }
        .expert-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--brand-shadow-lg);
        }
        .expert-avatar {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: 50%;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 2rem;
            font-weight: 900;
        }
        .expert-card h3 {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--brand-text);
            margin-bottom: 4px;
        }
        .expert-card .expert-role {
            font-size: 0.85rem;
            color: var(--brand-primary);
            font-weight: 600;
            margin-bottom: 10px;
        }
        .expert-card p {
            font-size: 0.9rem;
            color: var(--brand-text-soft);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ========== Rewards ========== */
        .rewards-section {
            background: var(--brand-bg-soft);
        }
        .reward-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--brand-shadow-sm);
            height: 100%;
            transition: var(--brand-transition);
            position: relative;
        }
        .reward-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--brand-shadow-lg);
        }
        .reward-icon {
            font-size: 2.2rem;
            color: var(--brand-accent);
            margin-bottom: 12px;
        }
        .reward-card h3 {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--brand-text);
            margin-bottom: 8px;
        }
        .reward-card p {
            font-size: 0.9rem;
            color: var(--brand-text-soft);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #fff;
        }
        .faq-item {
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            margin-bottom: 14px;
            background: #fff;
            box-shadow: var(--brand-shadow-sm);
            overflow: hidden;
            transition: var(--brand-transition);
        }
        .faq-item:hover {
            border-color: rgba(11,79,160,0.25);
        }
        .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--brand-text);
            transition: var(--brand-transition);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--brand-primary);
        }
        .faq-question .faq-toggle-icon {
            flex-shrink: 0;
            color: var(--brand-text-weak);
            transition: var(--brand-transition);
        }
        .faq-question.active .faq-toggle-icon {
            transform: rotate(45deg);
            color: var(--brand-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 22px;
        }
        .faq-answer-inner {
            padding: 0 0 18px;
            color: var(--brand-text-soft);
            font-size: 0.95rem;
            line-height: 1.8;
            border-top: 1px solid var(--brand-border);
            padding-top: 14px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        /* ========== Contact / Conversion ========== */
        .conversion-section {
            background: var(--brand-bg-deep);
            background-image: linear-gradient(135deg, #0a1f3c 0%, #0b4fa0 100%);
            padding: 64px 0;
        }
        .conversion-form-card {
            background: #fff;
            border-radius: var(--brand-radius-lg);
            padding: 36px 32px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.3);
        }
        .conversion-form-card h2 {
            font-weight: 800;
            font-size: 1.6rem;
            color: var(--brand-text);
            margin-bottom: 10px;
        }
        .conversion-form-card p {
            color: var(--brand-text-soft);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }
        .form-control-brand {
            border: 1.5px solid var(--brand-border);
            border-radius: 10px;
            padding: 10px 16px;
            font-size: 0.95rem;
            transition: var(--brand-transition);
        }
        .form-control-brand:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(11,79,160,0.1);
            outline: none;
        }
        .form-label-brand {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--brand-text);
            margin-bottom: 6px;
        }

        /* ========== Floating CTA ========== */
        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(10,31,60,0.96);
            backdrop-filter: blur(12px);
            padding: 12px 0;
            z-index: 1000;
            border-top: 1px solid rgba(255,255,255,0.15);
            transform: translateY(0);
            transition: transform 0.3s ease;
        }
        .floating-cta.hidden {
            transform: translateY(100%);
        }
        .floating-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .floating-cta-text {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
        }
        .floating-cta-text .highlight {
            color: #7dd3fc;
        }
        .floating-cta-actions {
            display: flex;
            gap: 10px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--brand-bg-deep);
            color: rgba(255,255,255,0.75);
            padding: 48px 0 28px;
            margin-bottom: 0;
        }
        .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand .brand-logo-icon {
            width: 32px;
            height: 32px;
            font-size: 1rem;
            border-radius: 8px;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.75;
            max-width: 360px;
            margin-bottom: 20px;
        }
        .footer-heading {
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            transition: var(--brand-transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            margin-top: 32px;
            padding-top: 20px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.5);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.6);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.4rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .hero-metrics {
                gap: 16px 24px;
            }
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 48px 0;
            }
            .section-pad-tight {
                padding: 32px 0;
            }
            .hero-section {
                padding: 56px 0 48px;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-promo-card {
                margin-top: 28px;
                padding: 24px 20px;
            }
            .navbar-nav {
                padding: 16px 0;
            }
            .navbar-nav .nav-link {
                padding: 10px 12px !important;
                font-size: 0.95rem;
                text-align: center;
            }
            .nav-search-box {
                min-width: 100%;
                margin-top: 10px;
            }
            .nav-cta-btn {
                margin-top: 10px;
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
            .brand-intro-card {
                padding: 28px 20px;
                gap: 20px;
            }
            .brand-intro-img {
                flex-basis: 100%;
                order: -1;
            }
            .news-list-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px 18px;
            }
            .scene-item {
                flex-direction: column;
                gap: 14px;
            }
            .countdown-timer .time-block {
                min-width: 42px;
                padding: 4px 8px;
            }
            .countdown-timer .time-num {
                font-size: 1.2rem;
            }
            .floating-cta-inner {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .floating-cta-actions {
                width: 100%;
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .text-center-mobile {
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-section {
                padding: 40px 0 36px;
            }
            .hero-metrics {
                flex-direction: column;
                gap: 10px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .section-desc {
                font-size: 0.9rem;
            }
            .btn-brand, .btn-brand-outline, .btn-accent {
                padding: 10px 20px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
            }
            .flash-card {
                min-width: 240px;
                max-width: 260px;
            }
            .stat-block .stat-num {
                font-size: 2rem;
            }
            .brand-intro-text h2 {
                font-size: 1.4rem;
            }
            .conversion-form-card {
                padding: 24px 18px;
            }
            .countdown-bar {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
        }

/* roulang page: category1 */
:root {
            --brand-primary: #0b4fa0;
            --brand-primary-dark: #083b7a;
            --brand-primary-light: #1a7ed1;
            --brand-secondary: #00a8ff;
            --brand-accent: #ff7a00;
            --brand-bg: #ffffff;
            --brand-bg-soft: #f4f7fb;
            --brand-bg-deep: #0a1f3c;
            --brand-text: #16233a;
            --brand-text-soft: #4a5a70;
            --brand-text-weak: #7b8ba5;
            --brand-border: #e4eaf2;
            --brand-radius: 14px;
            --brand-radius-sm: 8px;
            --brand-radius-lg: 20px;
            --brand-shadow-sm: 0 1px 4px rgba(10,30,60,0.06);
            --brand-shadow: 0 4px 20px rgba(10,30,60,0.08);
            --brand-shadow-lg: 0 8px 36px rgba(10,30,60,0.12);
            --brand-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --brand-transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--brand-font);
            color: var(--brand-text);
            background: var(--brand-bg);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--brand-primary-dark);
        }

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

        .container {
            max-width: 1200px;
        }

        .container-wide {
            max-width: 1320px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background: var(--brand-bg);
            border-bottom: 1px solid var(--brand-border);
            box-shadow: 0 2px 12px rgba(10,30,60,0.05);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--brand-transition);
        }

        .site-header .navbar {
            padding: 12px 0;
            flex-wrap: wrap;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
        }

        .navbar-brand:hover {
            color: var(--brand-primary-dark);
        }

        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
        }

        .navbar-nav .nav-link {
            font-weight: 600;
            color: var(--brand-text-soft);
            padding: 8px 16px !important;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: var(--brand-transition);
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-bg-soft);
        }

        .navbar-nav .nav-link.active {
            color: var(--brand-primary);
            background: rgba(11,79,160,0.08);
        }

        .nav-search-box {
            display: flex;
            align-items: center;
            border: 1.5px solid var(--brand-border);
            border-radius: 24px;
            padding: 5px 12px 5px 16px;
            background: #fff;
            gap: 8px;
            transition: var(--brand-transition);
            min-width: 180px;
        }

        .nav-search-box:focus-within {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(11,79,160,0.1);
        }

        .nav-search-box input {
            border: none;
            outline: none;
            font-size: 0.9rem;
            width: 140px;
            color: var(--brand-text);
            background: transparent;
        }

        .nav-search-box input::placeholder {
            color: var(--brand-text-weak);
        }

        .nav-search-box button {
            background: none;
            border: none;
            color: var(--brand-text-weak);
            cursor: pointer;
            padding: 4px;
            font-size: 0.95rem;
        }

        .nav-cta-btn {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--brand-transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .nav-cta-btn:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11,79,160,0.3);
        }

        .navbar-toggler {
            border: 1px solid var(--brand-border);
            border-radius: 8px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(11,79,160,0.15);
            outline: none;
        }

        /* ========== Section Base ========== */
        .section-pad {
            padding: 72px 0;
        }

        .section-pad-tight {
            padding: 48px 0;
        }

        .section-title-wrap {
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(11,79,160,0.08);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 0.82rem;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .section-title {
            font-weight: 800;
            font-size: 2rem;
            color: var(--brand-text);
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-desc {
            color: var(--brand-text-soft);
            font-size: 1.05rem;
            max-width: 720px;
            line-height: 1.8;
        }

        /* ========== Buttons ========== */
        .btn-brand {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 10px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-brand:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(11,79,160,0.3);
        }

        .btn-outline-brand {
            background: transparent;
            color: var(--brand-primary);
            border: 2px solid var(--brand-primary);
            border-radius: 10px;
            padding: 10px 26px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-brand:hover {
            background: var(--brand-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-light-brand {
            background: #fff;
            color: var(--brand-primary);
            border: none;
            border-radius: 10px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-light-brand:hover {
            background: var(--brand-bg-soft);
            color: var(--brand-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(255,255,255,0.3);
        }

        /* ========== Cards ========== */
        .card-brand {
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            background: #fff;
            box-shadow: var(--brand-shadow-sm);
            transition: var(--brand-transition);
            overflow: hidden;
            height: 100%;
        }

        .card-brand:hover {
            box-shadow: var(--brand-shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(11,79,160,0.2);
        }

        .card-brand .card-body {
            padding: 24px;
        }

        .card-brand .card-icon {
            width: 48px;
            height: 48px;
            background: rgba(11,79,160,0.08);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--brand-primary);
            margin-bottom: 16px;
        }

        .card-brand h3,
        .card-brand h4 {
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--brand-text);
        }

        .card-brand p {
            color: var(--brand-text-soft);
            font-size: 0.95rem;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== Badge ========== */
        .badge-brand {
            background: rgba(11,79,160,0.1);
            color: var(--brand-primary);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 20px;
        }

        .badge-accent {
            background: rgba(255,122,0,0.1);
            color: var(--brand-accent);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 20px;
        }

        /* ========== Hero Bento ========== */
        .hero-bento {
            background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
            padding: 64px 0 72px;
            position: relative;
            overflow: hidden;
        }

        .hero-bento::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -200px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(11,79,160,0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-bento::after {
            content: '';
            position: absolute;
            bottom: -250px;
            left: -150px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0,168,255,0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-bento .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(11,79,160,0.08);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 6px 16px;
            border-radius: 24px;
            margin-bottom: 20px;
        }

        .hero-bento h1 {
            font-weight: 900;
            font-size: 2.8rem;
            color: var(--brand-text);
            letter-spacing: -0.03em;
            line-height: 1.2;
            margin-bottom: 18px;
        }

        .hero-bento .hero-desc {
            font-size: 1.12rem;
            color: var(--brand-text-soft);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .bento-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
            margin-top: 32px;
        }

        .bento-main {
            grid-row: 1 / 3;
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-lg);
            box-shadow: var(--brand-shadow);
            padding: 36px;
            position: relative;
            overflow: hidden;
        }

        .bento-main::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
        }

        .bento-main .bento-main-title {
            font-weight: 800;
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--brand-text);
        }

        .bento-main .bento-main-desc {
            color: var(--brand-text-soft);
            font-size: 0.98rem;
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .bento-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .bento-stat-item {
            text-align: left;
        }

        .bento-stat-item .stat-num {
            font-weight: 900;
            font-size: 1.8rem;
            color: var(--brand-primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .bento-stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--brand-text-weak);
            margin-top: 4px;
        }

        .bento-small {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            padding: 24px;
            transition: var(--brand-transition);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .bento-small:hover {
            box-shadow: var(--brand-shadow);
            transform: translateY(-2px);
            border-color: rgba(11,79,160,0.2);
        }

        .bento-small .small-icon {
            width: 40px;
            height: 40px;
            background: rgba(0,168,255,0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--brand-secondary);
            margin-bottom: 12px;
        }

        .bento-small h4 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 6px;
            color: var(--brand-text);
        }

        .bento-small p {
            font-size: 0.88rem;
            color: var(--brand-text-weak);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .hero-cta-bar {
            background: var(--brand-bg-deep);
            border-radius: var(--brand-radius);
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 24px;
        }

        .hero-cta-bar .cta-text {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
        }

        .hero-cta-bar .cta-text strong {
            color: var(--brand-secondary);
        }

        /* ========== Feature Cards ========== */
        .feature-card {
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            background: #fff;
            padding: 28px 24px;
            height: 100%;
            transition: var(--brand-transition);
            box-shadow: var(--brand-shadow-sm);
        }

        .feature-card:hover {
            box-shadow: var(--brand-shadow);
            transform: translateY(-4px);
            border-color: rgba(11,79,160,0.15);
        }

        .feature-card .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
        }

        .feature-icon.blue {
            background: rgba(11,79,160,0.08);
            color: var(--brand-primary);
        }

        .feature-icon.cyan {
            background: rgba(0,168,255,0.08);
            color: var(--brand-secondary);
        }

        .feature-icon.orange {
            background: rgba(255,122,0,0.08);
            color: var(--brand-accent);
        }

        .feature-card h3 {
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--brand-text);
        }

        .feature-card p {
            color: var(--brand-text-soft);
            font-size: 0.93rem;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== Image Content Block ========== */
        .img-content-block {
            border-radius: var(--brand-radius-lg);
            overflow: hidden;
            box-shadow: var(--brand-shadow);
            position: relative;
        }

        .img-content-block img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }

        .img-content-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 32px 28px;
            background: linear-gradient(180deg, transparent 0%, rgba(10,31,60,0.85) 100%);
            color: #fff;
        }

        .img-content-overlay h3 {
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 8px;
            color: #fff;
        }

        .img-content-overlay p {
            font-size: 0.92rem;
            color: rgba(255,255,255,0.85);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== Process Steps ========== */
        .process-step {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 24px 0;
            border-bottom: 1px solid var(--brand-border);
        }

        .process-step:last-child {
            border-bottom: none;
        }

        .step-num {
            width: 44px;
            height: 44px;
            background: var(--brand-primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .step-content h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 6px;
            color: var(--brand-text);
        }

        .step-content p {
            color: var(--brand-text-soft);
            font-size: 0.93rem;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-item {
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            background: #fff;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--brand-transition);
        }

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

        .faq-item .accordion-button {
            font-weight: 700;
            color: var(--brand-text);
            font-size: 1rem;
            padding: 18px 24px;
            background: #fff;
        }

        .faq-item .accordion-button:not(.collapsed) {
            background: rgba(11,79,160,0.04);
            color: var(--brand-primary);
            box-shadow: none;
        }

        .faq-item .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(11,79,160,0.1);
            z-index: 1;
        }

        .faq-item .accordion-body {
            color: var(--brand-text-soft);
            font-size: 0.95rem;
            padding: 18px 24px 24px;
            line-height: 1.75;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-bg-deep) 0%, #0d2a50 100%);
            border-radius: var(--brand-radius-lg);
            padding: 56px 48px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(0,168,255,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-weight: 800;
            font-size: 1.8rem;
            margin-bottom: 12px;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            color: rgba(255,255,255,0.8);
            font-size: 1rem;
            margin-bottom: 24px;
            line-height: 1.7;
            max-width: 560px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--brand-bg-deep);
            color: rgba(255,255,255,0.75);
            padding: 64px 0 32px;
            margin-top: 80px;
        }

        .site-footer .footer-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .site-footer .footer-brand .brand-logo-icon {
            background: linear-gradient(135deg, var(--brand-primary-light) 0%, var(--brand-secondary) 100%);
        }

        .site-footer .footer-desc {
            color: rgba(255,255,255,0.6);
            font-size: 0.92rem;
            line-height: 1.75;
            max-width: 340px;
        }

        .site-footer .footer-heading {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-links li {
            margin-bottom: 10px;
        }

        .site-footer .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            transition: var(--brand-transition);
        }

        .site-footer .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            margin-top: 48px;
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }

        .site-footer .footer-bottom a {
            color: rgba(255,255,255,0.6);
            transition: var(--brand-transition);
        }

        .site-footer .footer-bottom a:hover {
            color: #fff;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hero-bento h1 {
                font-size: 2.3rem;
            }

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

            .bento-main {
                grid-row: auto;
            }
        }

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

            .hero-bento {
                padding: 40px 0 48px;
            }

            .hero-bento h1 {
                font-size: 1.9rem;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .cta-section {
                padding: 40px 28px;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .hero-cta-bar {
                flex-direction: column;
                text-align: center;
            }

            .navbar-nav .nav-link {
                padding: 10px 16px !important;
            }
        }

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

            .hero-bento .hero-desc {
                font-size: 1rem;
            }

            .bento-main {
                padding: 24px;
            }

            .bento-stats {
                gap: 20px;
            }

            .bento-stat-item .stat-num {
                font-size: 1.4rem;
            }

            .site-footer {
                padding: 40px 0 24px;
            }

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

        /* Focus accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(11,79,160,0.35);
            outline-offset: 2px;
        }

/* roulang page: category2 */
:root {
            --brand-primary: #0b4fa0;
            --brand-primary-dark: #083b7a;
            --brand-primary-light: #1a7ed1;
            --brand-secondary: #00a8ff;
            --brand-accent: #ff7a00;
            --brand-bg: #ffffff;
            --brand-bg-soft: #f4f7fb;
            --brand-bg-deep: #0a1f3c;
            --brand-text: #16233a;
            --brand-text-soft: #4a5a70;
            --brand-text-weak: #7b8ba5;
            --brand-border: #e4eaf2;
            --brand-radius: 14px;
            --brand-radius-sm: 8px;
            --brand-radius-lg: 20px;
            --brand-shadow-sm: 0 1px 4px rgba(10, 30, 60, 0.06);
            --brand-shadow: 0 4px 20px rgba(10, 30, 60, 0.08);
            --brand-shadow-lg: 0 8px 36px rgba(10, 30, 60, 0.12);
            --brand-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --brand-transition: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--brand-font);
            color: var(--brand-text);
            background: var(--brand-bg);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--brand-primary);
            transition: var(--brand-transition);
        }
        a:hover {
            color: var(--brand-primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }
        .container-wide {
            max-width: 1320px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* Header / Nav */
        .site-header {
            background: var(--brand-bg);
            border-bottom: 1px solid var(--brand-border);
            box-shadow: 0 2px 12px rgba(10, 30, 60, 0.05);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--brand-transition);
        }
        .site-header .navbar {
            padding: 12px 0;
            flex-wrap: wrap;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
        }
        .navbar-brand:hover {
            color: var(--brand-primary-dark);
        }
        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            color: var(--brand-text-soft);
            padding: 8px 16px !important;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: var(--brand-transition);
            white-space: nowrap;
        }
        .navbar-nav .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-bg-soft);
        }
        .navbar-nav .nav-link.active {
            color: var(--brand-primary);
            background: rgba(11, 79, 160, 0.08);
        }
        .nav-search-box {
            display: flex;
            align-items: center;
            border: 1.5px solid var(--brand-border);
            border-radius: 24px;
            padding: 5px 12px 5px 16px;
            background: #fff;
            gap: 8px;
            transition: var(--brand-transition);
            min-width: 180px;
        }
        .nav-search-box:focus-within {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(11, 79, 160, 0.1);
        }
        .nav-search-box input {
            border: none;
            outline: none;
            font-size: 0.9rem;
            width: 140px;
            color: var(--brand-text);
            background: transparent;
        }
        .nav-search-box input::placeholder {
            color: var(--brand-text-weak);
        }
        .nav-search-box button {
            background: none;
            border: none;
            color: var(--brand-text-weak);
            cursor: pointer;
            padding: 4px;
            font-size: 0.95rem;
        }
        .nav-cta-btn {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--brand-transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-cta-btn:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11, 79, 160, 0.3);
        }
        .navbar-toggler {
            border: 1px solid var(--brand-border);
            border-radius: 8px;
            padding: 6px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(11, 79, 160, 0.15);
            outline: none;
        }
        /* Section Base */
        .section-pad {
            padding: 72px 0;
        }
        .section-pad-tight {
            padding: 48px 0;
        }
        .section-title-wrap {
            margin-bottom: 40px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(11, 79, 160, 0.08);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 0.82rem;
            padding: 5px 14px;
            border-radius: 16px;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--brand-text);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--brand-text-soft);
            max-width: 720px;
        }
        /* Buttons */
        .btn-brand {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(11, 79, 160, 0.3);
        }
        .btn-outline-brand {
            background: transparent;
            color: var(--brand-primary);
            border: 2px solid var(--brand-primary);
            border-radius: 24px;
            padding: 10px 26px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-brand:hover {
            background: var(--brand-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--brand-accent);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-accent:hover {
            background: #e66d00;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(255, 122, 0, 0.3);
        }
        /* Hero */
        .hero-section {
            background: linear-gradient(165deg, #f4f7fb 0%, #e8eff8 50%, #f4f7fb 100%);
            padding: 60px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26, 126, 209, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(11, 79, 160, 0.1);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 0.82rem;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 18px;
        }
        .hero-title {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--brand-text);
            line-height: 1.25;
            letter-spacing: -0.025em;
            margin-bottom: 16px;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--brand-text-soft);
            max-width: 560px;
            margin-bottom: 28px;
        }
        .hero-panel {
            background: #fff;
            border-radius: var(--brand-radius-lg);
            box-shadow: var(--brand-shadow-lg);
            padding: 24px;
            position: relative;
            z-index: 2;
        }
        .hero-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
            flex-wrap: wrap;
            gap: 8px;
        }
        .hero-panel-header h3 {
            font-size: 1.1rem;
            font-weight: 800;
            margin: 0;
        }
        .live-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #22c55e;
            border-radius: 50%;
            animation: pulse 1.5s infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }
        .hero-stat-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 16px;
        }
        .hero-stat-item {
            flex: 1;
            min-width: 90px;
            background: var(--brand-bg-soft);
            border-radius: var(--brand-radius-sm);
            padding: 14px 12px;
            text-align: center;
        }
        .hero-stat-item .stat-num {
            font-size: 1.4rem;
            font-weight: 900;
            color: var(--brand-primary);
        }
        .hero-stat-item .stat-label {
            font-size: 0.78rem;
            color: var(--brand-text-weak);
            margin-top: 2px;
        }
        /* Cards */
        .feature-card {
            background: #fff;
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            padding: 28px 24px;
            height: 100%;
            transition: var(--brand-transition);
            border: 1px solid var(--brand-border);
        }
        .feature-card:hover {
            box-shadow: var(--brand-shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(11, 79, 160, 0.2);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 16px;
        }
        .feature-card h4 {
            font-size: 1.15rem;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--brand-text);
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--brand-text-soft);
            margin-bottom: 0;
        }
        /* Comparison Table */
        .comparison-section {
            background: var(--brand-bg-deep);
            padding: 72px 0;
            color: #fff;
        }
        .comparison-section .section-title {
            color: #fff;
        }
        .comparison-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }
        .comparison-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--brand-radius-lg);
            padding: 32px 28px;
            height: 100%;
            transition: var(--brand-transition);
        }
        .comparison-card.highlight {
            background: #fff;
            color: var(--brand-text);
            border: 2px solid var(--brand-secondary);
            box-shadow: 0 0 0 4px rgba(0, 168, 255, 0.25), var(--brand-shadow-lg);
            position: relative;
            transform: translateY(-8px);
        }
        .comparison-card.highlight .comparison-badge {
            position: absolute;
            top: -14px;
            right: 20px;
            background: var(--brand-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 800;
            padding: 4px 14px;
            border-radius: 16px;
            letter-spacing: 0.03em;
        }
        .comparison-card h4 {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 4px;
        }
        .comparison-card .price {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--brand-primary);
            margin-bottom: 4px;
        }
        .comparison-card.highlight .price {
            color: var(--brand-primary);
        }
        .comparison-card .price-period {
            font-size: 0.85rem;
            color: var(--brand-text-weak);
            margin-bottom: 20px;
        }
        .comparison-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }
        .comparison-card ul li {
            padding: 8px 0;
            font-size: 0.92rem;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .comparison-card ul li i {
            color: #22c55e;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .comparison-card:not(.highlight) ul li {
            color: rgba(255, 255, 255, 0.75);
        }
        .comparison-card:not(.highlight) ul li i {
            color: #22c55e;
        }
        .comparison-card:not(.highlight) .price-period {
            color: rgba(255, 255, 255, 0.5);
        }
        /* Scenario Cards */
        .scenario-card {
            background: #fff;
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            padding: 24px;
            height: 100%;
            border: 1px solid var(--brand-border);
            display: flex;
            flex-direction: column;
            transition: var(--brand-transition);
        }
        .scenario-card:hover {
            box-shadow: var(--brand-shadow);
            transform: translateY(-3px);
        }
        .scenario-card .scenario-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(11, 79, 160, 0.08);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .scenario-card h5 {
            font-weight: 800;
            font-size: 1.05rem;
            margin-bottom: 8px;
            color: var(--brand-text);
        }
        .scenario-card p {
            font-size: 0.9rem;
            color: var(--brand-text-soft);
            margin-bottom: 0;
        }
        /* Process */
        .process-step {
            display: flex;
            gap: 20px;
            margin-bottom: 28px;
        }
        .process-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .process-step .step-content h5 {
            font-weight: 800;
            font-size: 1.05rem;
            margin-bottom: 6px;
            color: var(--brand-text);
        }
        .process-step .step-content p {
            font-size: 0.92rem;
            color: var(--brand-text-soft);
            margin-bottom: 0;
        }
        /* FAQ */
        .faq-section {
            background: var(--brand-bg-soft);
        }
        .faq-item {
            background: #fff;
            border-radius: var(--brand-radius-sm);
            box-shadow: var(--brand-shadow-sm);
            margin-bottom: 12px;
            overflow: hidden;
            border: 1px solid var(--brand-border);
        }
        .faq-item .faq-question {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--brand-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--brand-transition);
        }
        .faq-item .faq-question:hover {
            color: var(--brand-primary);
        }
        .faq-item .faq-question i {
            color: var(--brand-text-weak);
            transition: var(--brand-transition);
            flex-shrink: 0;
        }
        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.93rem;
            color: var(--brand-text-soft);
            display: none;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
            padding: 64px 0;
            color: #fff;
            border-radius: 0;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 560px;
            margin-bottom: 24px;
        }
        .cta-section .btn-accent {
            background: #fff;
            color: var(--brand-primary);
            font-weight: 800;
        }
        .cta-section .btn-accent:hover {
            background: #f0f4fa;
            color: var(--brand-primary-dark);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
        }
        /* Data Coverage */
        .league-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 20px;
            padding: 8px 16px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--brand-text-soft);
            margin: 4px;
            transition: var(--brand-transition);
            cursor: default;
        }
        .league-chip:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            box-shadow: var(--brand-shadow-sm);
        }
        .league-chip i {
            color: var(--brand-secondary);
        }
        .league-chip .league-count {
            font-size: 0.75rem;
            color: var(--brand-text-weak);
            font-weight: 700;
        }
        /* Image Card */
        .img-card {
            position: relative;
            border-radius: var(--brand-radius-lg);
            overflow: hidden;
            box-shadow: var(--brand-shadow);
        }
        .img-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--brand-transition);
        }
        .img-card:hover img {
            transform: scale(1.02);
        }
        .img-card .img-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 40px 24px 20px;
            background: linear-gradient(to top, rgba(10, 31, 60, 0.85) 0%, transparent 100%);
            color: #fff;
        }
        .img-card .img-overlay h5 {
            font-weight: 800;
            margin-bottom: 4px;
            font-size: 1.1rem;
        }
        .img-card .img-overlay p {
            font-size: 0.85rem;
            margin: 0;
            opacity: 0.85;
        }
        /* Data Feature Row */
        .data-feature-row {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            background: #fff;
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            border: 1px solid var(--brand-border);
            padding: 20px 24px;
            margin-bottom: 14px;
            transition: var(--brand-transition);
        }
        .data-feature-row:hover {
            box-shadow: var(--brand-shadow);
            border-color: rgba(11, 79, 160, 0.2);
        }
        .data-feature-row .dfr-icon {
            width: 46px;
            height: 46px;
            border-radius: 10px;
            background: rgba(11, 79, 160, 0.08);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .data-feature-row .dfr-content {
            flex: 1;
            min-width: 200px;
        }
        .data-feature-row .dfr-content h5 {
            font-weight: 800;
            font-size: 1rem;
            margin-bottom: 3px;
            color: var(--brand-text);
        }
        .data-feature-row .dfr-content p {
            font-size: 0.86rem;
            color: var(--brand-text-weak);
            margin: 0;
        }
        .data-feature-row .dfr-value {
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--brand-primary);
            flex-shrink: 0;
            text-align: right;
        }
        /* Footer */
        .site-footer {
            background: var(--brand-bg-deep);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 24px;
        }
        .site-footer .footer-brand {
            font-weight: 800;
            font-size: 1.4rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand .brand-logo-icon {
            width: 36px;
            height: 36px;
            font-size: 1.1rem;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .site-footer .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: var(--brand-transition);
        }
        .site-footer .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .nav-search-box {
                min-width: 140px;
            }
            .nav-search-box input {
                width: 100px;
            }
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-pad {
                padding: 48px 0;
            }
            .navbar-nav {
                margin: 12px 0;
                gap: 2px;
            }
            .navbar-nav .nav-link {
                padding: 10px 14px !important;
            }
            .comparison-card.highlight {
                transform: translateY(0);
            }
            .comparison-card {
                margin-bottom: 16px;
            }
            .nav-search-box {
                margin-top: 8px;
            }
            .data-feature-row .dfr-value {
                text-align: left;
                font-size: 1.2rem;
            }
            .hero-panel {
                margin-top: 20px;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .btn-brand,
            .btn-outline-brand,
            .btn-accent {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
            .hero-stat-item .stat-num {
                font-size: 1.1rem;
            }
            .comparison-card {
                padding: 24px 18px;
            }
            .comparison-card h4 {
                font-size: 1.1rem;
            }
            .comparison-card .price {
                font-size: 1.7rem;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
            --brand-primary: #0b4fa0;
            --brand-primary-dark: #083b7a;
            --brand-primary-light: #1a7ed1;
            --brand-secondary: #00a8ff;
            --brand-accent: #ff7a00;
            --brand-bg: #ffffff;
            --brand-bg-soft: #f4f7fb;
            --brand-bg-deep: #0a1f3c;
            --brand-text: #16233a;
            --brand-text-soft: #4a5a70;
            --brand-text-weak: #7b8ba5;
            --brand-border: #e4eaf2;
            --brand-radius: 14px;
            --brand-radius-sm: 8px;
            --brand-radius-lg: 20px;
            --brand-shadow-sm: 0 1px 4px rgba(10,30,60,0.06);
            --brand-shadow: 0 4px 20px rgba(10,30,60,0.08);
            --brand-shadow-lg: 0 8px 36px rgba(10,30,60,0.12);
            --brand-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --brand-transition: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--brand-font);
            color: var(--brand-text);
            background: var(--brand-bg);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--brand-primary);
            transition: var(--brand-transition);
        }
        a:hover {
            color: var(--brand-primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }
        .container-wide {
            max-width: 1320px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* ========== Header / Nav ========== */
        .site-header {
            background: var(--brand-bg);
            border-bottom: 1px solid var(--brand-border);
            box-shadow: 0 2px 12px rgba(10,30,60,0.05);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--brand-transition);
        }
        .site-header .navbar {
            padding: 12px 0;
            flex-wrap: wrap;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
        }
        .navbar-brand:hover {
            color: var(--brand-primary-dark);
        }
        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            color: var(--brand-text-soft);
            padding: 8px 16px !important;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: var(--brand-transition);
            white-space: nowrap;
        }
        .navbar-nav .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-bg-soft);
        }
        .navbar-nav .nav-link.active {
            color: var(--brand-primary);
            background: rgba(11,79,160,0.08);
        }
        .nav-search-box {
            display: flex;
            align-items: center;
            border: 1.5px solid var(--brand-border);
            border-radius: 24px;
            padding: 5px 12px 5px 16px;
            background: #fff;
            gap: 8px;
            transition: var(--brand-transition);
            min-width: 180px;
        }
        .nav-search-box:focus-within {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(11,79,160,0.1);
        }
        .nav-search-box input {
            border: none;
            outline: none;
            font-size: 0.9rem;
            width: 140px;
            color: var(--brand-text);
            background: transparent;
        }
        .nav-search-box input::placeholder {
            color: var(--brand-text-weak);
        }
        .nav-search-box button {
            background: none;
            border: none;
            color: var(--brand-text-weak);
            cursor: pointer;
            padding: 4px;
            font-size: 0.95rem;
        }
        .nav-cta-btn {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--brand-transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-cta-btn:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11,79,160,0.3);
        }
        .navbar-toggler {
            border: 1px solid var(--brand-border);
            border-radius: 8px;
            padding: 6px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(11,79,160,0.15);
            outline: none;
        }
        /* ========== Section Base ========== */
        .section-pad {
            padding: 72px 0;
        }
        .section-pad-tight {
            padding: 48px 0;
        }
        .section-title-wrap {
            margin-bottom: 40px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(11,79,160,0.08);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 0.82rem;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--brand-text);
            line-height: 1.3;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--brand-text-soft);
            max-width: 720px;
            line-height: 1.75;
        }
        /* ========== Buttons ========== */
        .btn-brand {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 10px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(11,79,160,0.28);
        }
        .btn-brand:focus {
            outline: 3px solid rgba(11,79,160,0.25);
            outline-offset: 2px;
        }
        .btn-brand:active {
            transform: translateY(0);
            box-shadow: var(--brand-shadow-sm);
        }
        .btn-outline-brand {
            background: transparent;
            color: var(--brand-primary);
            border: 2px solid var(--brand-primary);
            border-radius: 10px;
            padding: 10px 26px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-brand:hover {
            background: var(--brand-primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(11,79,160,0.22);
        }
        .btn-accent {
            background: var(--brand-accent);
            color: #fff;
            border: none;
            border-radius: 10px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-accent:hover {
            background: #e56d00;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255,122,0,0.3);
        }
        /* ========== Cards ========== */
        .brand-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            transition: var(--brand-transition);
            overflow: hidden;
        }
        .brand-card:hover {
            box-shadow: var(--brand-shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(11,79,160,0.2);
        }
        /* ========== Hero Flash Sale ========== */
        .hero-flash-section {
            background: linear-gradient(165deg, #0a1f3c 0%, #0b4fa0 55%, #1a7ed1 100%);
            color: #fff;
            padding: 56px 0 72px;
            position: relative;
            overflow: hidden;
        }
        .hero-flash-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            pointer-events: none;
        }
        .flash-countdown-bar {
            background: rgba(255,255,255,0.12);
            border: 1px solid rgba(255,255,255,0.22);
            border-radius: 12px;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 32px;
            backdrop-filter: blur(8px);
        }
        .flash-countdown-bar .flash-label {
            font-weight: 700;
            font-size: 0.92rem;
            letter-spacing: 0.04em;
            color: #ffe0a3;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .countdown-timer {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 1.2rem;
            letter-spacing: 0.04em;
        }
        .countdown-timer .time-block {
            background: rgba(255,255,255,0.16);
            border-radius: 8px;
            padding: 4px 10px;
            min-width: 40px;
            text-align: center;
            color: #fff;
            font-weight: 800;
        }
        .countdown-timer .time-sep {
            color: rgba(255,255,255,0.7);
            font-weight: 700;
        }
        .hero-flash-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
            color: #fff;
        }
        .hero-flash-subtitle {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.88);
            max-width: 600px;
            line-height: 1.75;
            margin-bottom: 28px;
        }
        .hero-flash-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-main-card {
            background: rgba(255,255,255,0.07);
            border: 1px solid rgba(255,255,255,0.22);
            border-radius: var(--brand-radius-lg);
            padding: 28px;
            backdrop-filter: blur(10px);
            transition: var(--brand-transition);
        }
        .hero-main-card:hover {
            background: rgba(255,255,255,0.12);
            border-color: rgba(255,255,255,0.35);
        }
        .hero-main-card .match-badge {
            display: inline-block;
            background: var(--brand-accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.78rem;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .hero-main-card .match-name {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .hero-main-card .match-info {
            font-size: 0.92rem;
            color: rgba(255,255,255,0.75);
            line-height: 1.6;
        }
        .hero-main-card .recommend-tag {
            display: inline-block;
            background: rgba(255,122,0,0.2);
            color: #ffb36b;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 3px 10px;
            border-radius: 6px;
            margin-top: 10px;
        }
        /* ========== Stats Block ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }
        .stat-item {
            text-align: center;
            padding: 24px 20px;
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            transition: var(--brand-transition);
        }
        .stat-item:hover {
            box-shadow: var(--brand-shadow);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--brand-primary);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--brand-text-soft);
            margin-top: 6px;
            font-weight: 600;
        }
        /* ========== Recommendation Cards ========== */
        .reco-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            transition: var(--brand-transition);
            overflow: hidden;
        }
        .reco-card:hover {
            box-shadow: var(--brand-shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(11,79,160,0.18);
        }
        .reco-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .reco-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--brand-transition);
        }
        .reco-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .reco-card .card-body {
            padding: 20px;
        }
        .reco-card .reco-badge {
            display: inline-block;
            background: var(--brand-accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 12px;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
        }
        .reco-card .reco-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .reco-card .reco-desc {
            font-size: 0.9rem;
            color: var(--brand-text-soft);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .reco-card .reco-meta {
            font-size: 0.8rem;
            color: var(--brand-text-weak);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        /* ========== Analysis Process ========== */
        .process-step {
            display: flex;
            gap: 16px;
            padding: 20px;
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            transition: var(--brand-transition);
            height: 100%;
        }
        .process-step:hover {
            box-shadow: var(--brand-shadow);
            transform: translateY(-3px);
        }
        .process-number {
            width: 44px;
            height: 44px;
            background: var(--brand-primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .process-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 6px;
        }
        .process-content p {
            font-size: 0.9rem;
            color: var(--brand-text-soft);
            margin-bottom: 0;
            line-height: 1.65;
        }
        /* ========== Expert Section ========== */
        .expert-panel {
            background: var(--brand-bg-soft);
            border-radius: var(--brand-radius-lg);
            padding: 32px;
            border: 1px solid var(--brand-border);
        }
        .expert-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px 0;
            border-bottom: 1px solid var(--brand-border);
        }
        .expert-item:last-child {
            border-bottom: none;
        }
        .expert-avatar {
            width: 52px;
            height: 52px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .expert-info h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 4px;
        }
        .expert-info p {
            font-size: 0.88rem;
            color: var(--brand-text-soft);
            margin-bottom: 0;
            line-height: 1.6;
        }
        /* ========== Record Table ========== */
        .record-table-wrap {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            overflow: hidden;
        }
        .record-table {
            margin-bottom: 0;
        }
        .record-table thead th {
            background: var(--brand-bg-deep);
            color: #fff;
            font-weight: 700;
            font-size: 0.88rem;
            padding: 14px 16px;
            border-bottom: none;
            white-space: nowrap;
        }
        .record-table tbody td {
            padding: 12px 16px;
            font-size: 0.9rem;
            color: var(--brand-text-soft);
            border-bottom: 1px solid var(--brand-border);
            vertical-align: middle;
        }
        .record-table tbody tr:hover td {
            background: var(--brand-bg-soft);
        }
        .record-table .win-badge {
            background: rgba(16,185,129,0.12);
            color: #059669;
            font-weight: 700;
            font-size: 0.78rem;
            padding: 3px 10px;
            border-radius: 12px;
            display: inline-block;
        }
        .record-table .lose-badge {
            background: rgba(239,68,68,0.1);
            color: #dc2626;
            font-weight: 700;
            font-size: 0.78rem;
            padding: 3px 10px;
            border-radius: 12px;
            display: inline-block;
        }
        .record-table .draw-badge {
            background: rgba(100,116,139,0.12);
            color: #64748b;
            font-weight: 700;
            font-size: 0.78rem;
            padding: 3px 10px;
            border-radius: 12px;
            display: inline-block;
        }
        /* ========== Testimonials ========== */
        .testimonial-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            padding: 24px;
            height: 100%;
            transition: var(--brand-transition);
        }
        .testimonial-card:hover {
            box-shadow: var(--brand-shadow);
            transform: translateY(-3px);
        }
        .testimonial-card .quote-icon {
            color: var(--brand-primary-light);
            font-size: 1.5rem;
            margin-bottom: 10px;
            opacity: 0.6;
        }
        .testimonial-card .testimonial-text {
            font-size: 0.95rem;
            color: var(--brand-text-soft);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-card .author-avatar {
            width: 38px;
            height: 38px;
            background: rgba(11,79,160,0.12);
            color: var(--brand-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .testimonial-card .author-name {
            font-weight: 700;
            font-size: 0.88rem;
            color: var(--brand-text);
        }
        .testimonial-card .author-role {
            font-size: 0.78rem;
            color: var(--brand-text-weak);
        }
        /* ========== Pricing ========== */
        .pricing-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-lg);
            box-shadow: var(--brand-shadow-sm);
            padding: 32px 28px;
            height: 100%;
            transition: var(--brand-transition);
            position: relative;
        }
        .pricing-card:hover {
            box-shadow: var(--brand-shadow-lg);
            transform: translateY(-5px);
        }
        .pricing-card.featured {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 1px var(--brand-primary), var(--brand-shadow);
        }
        .pricing-card .pricing-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--brand-accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.75rem;
            padding: 4px 14px;
            border-radius: 16px;
            letter-spacing: 0.04em;
        }
        .pricing-card .price-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--brand-primary);
            letter-spacing: -0.03em;
            line-height: 1.2;
        }
        .pricing-card .price-unit {
            font-size: 0.95rem;
            color: var(--brand-text-weak);
            font-weight: 600;
        }
        .pricing-card .price-desc {
            font-size: 0.85rem;
            color: var(--brand-text-soft);
            margin-top: 4px;
        }
        .pricing-features {
            list-style: none;
            padding: 0;
            margin: 20px 0;
        }
        .pricing-features li {
            padding: 6px 0;
            font-size: 0.9rem;
            color: var(--brand-text-soft);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .pricing-features li i {
            color: #10b981;
            flex-shrink: 0;
            margin-top: 5px;
            font-size: 0.8rem;
        }
        /* ========== FAQ ========== */
        .faq-section {
            background: var(--brand-bg-soft);
        }
        .accordion-item {
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--brand-shadow-sm);
            background: #fff;
        }
        .accordion-button {
            font-weight: 700;
            color: var(--brand-text);
            padding: 18px 20px;
            font-size: 0.98rem;
            background: #fff;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(11,79,160,0.05);
            color: var(--brand-primary);
        }
        .accordion-button:focus {
            box-shadow: none;
            outline: 3px solid rgba(11,79,160,0.2);
            outline-offset: -2px;
        }
        .accordion-body {
            padding: 16px 20px;
            font-size: 0.92rem;
            color: var(--brand-text-soft);
            line-height: 1.7;
        }
        /* ========== CTA Banner ========== */
        .cta-banner {
            background: linear-gradient(135deg, var(--brand-bg-deep) 0%, var(--brand-primary) 60%, var(--brand-primary-light) 100%);
            color: #fff;
            border-radius: var(--brand-radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-banner h3 {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }
        .cta-banner p {
            color: rgba(255,255,255,0.85);
            font-size: 0.98rem;
            margin-bottom: 0;
            max-width: 580px;
            line-height: 1.7;
        }
        .cta-banner .btn-banner {
            background: #fff;
            color: var(--brand-primary);
            border: none;
            border-radius: 10px;
            padding: 14px 32px;
            font-weight: 800;
            font-size: 1rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .cta-banner .btn-banner:hover {
            background: var(--brand-bg-soft);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0,0,0,0.2);
        }
        /* ========== Footer ========== */
        .site-footer {
            background: var(--brand-bg-deep);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 32px;
            margin-top: 0;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 14px;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.65);
            line-height: 1.7;
            max-width: 340px;
        }
        .site-footer .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 0.88rem;
            transition: var(--brand-transition);
        }
        .site-footer .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            margin-top: 36px;
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.5);
        }
        .site-footer .footer-bottom a {
            color: rgba(255,255,255,0.5);
            transition: var(--brand-transition);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hero-flash-title {
                font-size: 2rem;
            }
            .section-pad {
                padding: 56px 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .hero-flash-section {
                padding: 36px 0 48px;
            }
            .hero-flash-title {
                font-size: 1.6rem;
            }
            .hero-flash-subtitle {
                font-size: 0.95rem;
            }
            .section-pad {
                padding: 40px 0;
            }
            .section-pad-tight {
                padding: 32px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .navbar-collapse {
                background: #fff;
                border-radius: 12px;
                padding: 16px;
                margin-top: 12px;
                border: 1px solid var(--brand-border);
                box-shadow: var(--brand-shadow);
            }
            .nav-search-box {
                min-width: 100%;
                width: 100%;
                margin-top: 8px;
            }
            .nav-cta-btn {
                width: 100%;
                justify-content: center;
                margin-top: 8px;
            }
            .cta-banner {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
            }
            .cta-banner h3 {
                font-size: 1.3rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .flash-countdown-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .hero-main-card {
                padding: 20px;
            }
            .hero-main-card .match-name {
                font-size: 1.1rem;
            }
        }
        @media (max-width: 520px) {
            .hero-flash-title {
                font-size: 1.35rem;
            }
            .hero-flash-subtitle {
                font-size: 0.88rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stat-item {
                padding: 16px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .pricing-card {
                padding: 24px 18px;
            }
            .pricing-card .price-number {
                font-size: 1.9rem;
            }
            .process-step {
                flex-direction: column;
                gap: 10px;
            }
            .process-number {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }
            .record-table thead th,
            .record-table tbody td {
                padding: 8px 10px;
                font-size: 0.78rem;
            }
            .btn-brand,
            .btn-outline-brand,
            .btn-accent {
                padding: 10px 20px;
                font-size: 0.85rem;
                width: 100%;
                justify-content: center;
            }
            .hero-flash-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-flash-cta-group .btn-brand,
            .hero-flash-cta-group .btn-outline-brand,
            .hero-flash-cta-group .btn-accent {
                width: 100%;
                justify-content: center;
            }
            .countdown-timer {
                font-size: 1rem;
            }
            .countdown-timer .time-block {
                min-width: 32px;
                padding: 3px 8px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category4 */
:root {
            --brand-primary: #0b4fa0;
            --brand-primary-dark: #083b7a;
            --brand-primary-light: #1a7ed1;
            --brand-secondary: #00a8ff;
            --brand-accent: #ff7a00;
            --brand-bg: #ffffff;
            --brand-bg-soft: #f4f7fb;
            --brand-bg-deep: #0a1f3c;
            --brand-text: #16233a;
            --brand-text-soft: #4a5a70;
            --brand-text-weak: #7b8ba5;
            --brand-border: #e4eaf2;
            --brand-radius: 14px;
            --brand-radius-sm: 8px;
            --brand-radius-lg: 20px;
            --brand-shadow-sm: 0 1px 4px rgba(10,30,60,0.06);
            --brand-shadow: 0 4px 20px rgba(10,30,60,0.08);
            --brand-shadow-lg: 0 8px 36px rgba(10,30,60,0.12);
            --brand-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --brand-transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--brand-font);
            color: var(--brand-text);
            background: var(--brand-bg);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--brand-primary-dark);
        }

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

        .container {
            max-width: 1200px;
        }

        .container-wide {
            max-width: 1320px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background: var(--brand-bg);
            border-bottom: 1px solid var(--brand-border);
            box-shadow: 0 2px 12px rgba(10,30,60,0.05);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--brand-transition);
        }

        .site-header .navbar {
            padding: 12px 0;
            flex-wrap: wrap;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
        }

        .navbar-brand:hover {
            color: var(--brand-primary-dark);
        }

        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
        }

        .navbar-nav .nav-link {
            font-weight: 600;
            color: var(--brand-text-soft);
            padding: 8px 16px !important;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: var(--brand-transition);
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-bg-soft);
        }

        .navbar-nav .nav-link.active {
            color: var(--brand-primary);
            background: rgba(11,79,160,0.08);
        }

        .nav-search-box {
            display: flex;
            align-items: center;
            border: 1.5px solid var(--brand-border);
            border-radius: 24px;
            padding: 5px 12px 5px 16px;
            background: #fff;
            gap: 8px;
            transition: var(--brand-transition);
            min-width: 180px;
        }

        .nav-search-box:focus-within {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(11,79,160,0.1);
        }

        .nav-search-box input {
            border: none;
            outline: none;
            font-size: 0.9rem;
            width: 140px;
            color: var(--brand-text);
            background: transparent;
        }

        .nav-search-box input::placeholder {
            color: var(--brand-text-weak);
        }

        .nav-search-box button {
            background: none;
            border: none;
            color: var(--brand-text-weak);
            cursor: pointer;
            padding: 4px;
            font-size: 0.95rem;
        }

        .nav-cta-btn {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--brand-transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .nav-cta-btn:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11,79,160,0.3);
        }

        .navbar-toggler {
            border: 1px solid var(--brand-border);
            border-radius: 8px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(11,79,160,0.15);
            outline: none;
        }

        /* ========== Section Base ========== */
        .section-pad {
            padding: 72px 0;
        }

        .section-pad-tight {
            padding: 48px 0;
        }

        .section-title-wrap {
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(11,79,160,0.08);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 0.82rem;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

        .section-title {
            font-weight: 800;
            font-size: 2rem;
            letter-spacing: -0.02em;
            color: var(--brand-text);
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--brand-text-soft);
            max-width: 720px;
        }

        /* ========== Inner Hero ========== */
        .inner-hero {
            background: linear-gradient(135deg, var(--brand-bg-deep) 0%, #123a6b 55%, #0b4fa0 100%);
            padding: 72px 0 64px;
            position: relative;
            overflow: hidden;
        }

        .inner-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: rgba(0,168,255,0.12);
            pointer-events: none;
        }

        .inner-hero::after {
            content: '';
            position: absolute;
            bottom: -160px;
            left: -100px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: rgba(255,122,0,0.08);
            pointer-events: none;
        }

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

        .inner-hero-tag {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            color: #fff;
            font-weight: 700;
            font-size: 0.82rem;
            padding: 6px 16px;
            border-radius: 20px;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
            border: 1px solid rgba(255,255,255,0.15);
            backdrop-filter: blur(4px);
        }

        .inner-hero h1 {
            color: #fff;
            font-weight: 900;
            font-size: 2.4rem;
            letter-spacing: -0.03em;
            margin-bottom: 16px;
            max-width: 700px;
        }

        .inner-hero-desc {
            color: rgba(255,255,255,0.78);
            font-size: 1.1rem;
            max-width: 600px;
            line-height: 1.85;
        }

        .inner-hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .inner-hero-stat {
            color: #fff;
        }

        .inner-hero-stat .stat-num {
            font-size: 2rem;
            font-weight: 900;
            letter-spacing: -0.02em;
        }

        .inner-hero-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.65);
        }

        .inner-hero-visual {
            position: relative;
            z-index: 2;
            border-radius: var(--brand-radius-lg);
            overflow: hidden;
            box-shadow: 0 16px 48px rgba(0,0,0,0.25);
            border: 1px solid rgba(255,255,255,0.1);
        }

        .inner-hero-visual img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        /* ========== Cards ========== */
        .brand-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            padding: 28px 24px;
            transition: var(--brand-transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .brand-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--brand-shadow-lg);
            border-color: rgba(11,79,160,0.2);
        }

        .brand-card .card-icon {
            width: 48px;
            height: 48px;
            background: rgba(11,79,160,0.08);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--brand-primary);
            margin-bottom: 16px;
        }

        .brand-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--brand-text);
        }

        .brand-card p {
            font-size: 0.92rem;
            color: var(--brand-text-soft);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== Feature Blocks ========== */
        .feature-block {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }

        .feature-block.reverse {
            flex-direction: row-reverse;
        }

        .feature-block .feature-content {
            flex: 1 1 420px;
        }

        .feature-block .feature-image {
            flex: 1 1 380px;
            border-radius: var(--brand-radius-lg);
            overflow: hidden;
            box-shadow: var(--brand-shadow);
            position: relative;
        }

        .feature-block .feature-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

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

        .feature-list li {
            padding: 8px 0;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--brand-text-soft);
        }

        .feature-list li i {
            color: var(--brand-primary);
            margin-top: 4px;
            font-size: 0.9rem;
        }

        /* ========== Process Steps ========== */
        .process-step {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            padding: 24px;
            height: 100%;
            position: relative;
            transition: var(--brand-transition);
        }

        .process-step:hover {
            box-shadow: var(--brand-shadow);
            border-color: rgba(11,79,160,0.18);
        }

        .process-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--brand-primary);
            color: #fff;
            border-radius: 50%;
            font-weight: 800;
            font-size: 0.95rem;
            margin-bottom: 14px;
        }

        .process-step h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 0.9rem;
            color: var(--brand-text-soft);
            margin-bottom: 0;
        }

        /* ========== Comparison Table ========== */
        .compare-table-wrap {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-lg);
            overflow: hidden;
            box-shadow: var(--brand-shadow);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
        }

        .compare-table thead th {
            background: var(--brand-bg-soft);
            font-weight: 700;
            color: var(--brand-text);
            padding: 14px 18px;
            text-align: left;
            border-bottom: 2px solid var(--brand-border);
            white-space: nowrap;
        }

        .compare-table tbody td {
            padding: 13px 18px;
            border-bottom: 1px solid var(--brand-border);
            color: var(--brand-text-soft);
            vertical-align: middle;
        }

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

        .compare-table tbody tr:hover td {
            background: rgba(11,79,160,0.03);
        }

        .compare-table .highlight-cell {
            color: var(--brand-primary);
            font-weight: 600;
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
        }

        .faq-accordion .accordion-button {
            font-weight: 700;
            font-size: 0.98rem;
            color: var(--brand-text);
            padding: 18px 22px;
            background: #fff;
            border: none;
            box-shadow: none;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--brand-primary);
            background: var(--brand-bg-soft);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(11,79,160,0.1);
            border: none;
        }

        .faq-accordion .accordion-body {
            font-size: 0.92rem;
            color: var(--brand-text-soft);
            padding: 16px 22px 20px;
            line-height: 1.75;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-primary-dark) 0%, var(--brand-primary) 50%, var(--brand-primary-light) 100%);
            border-radius: var(--brand-radius-lg);
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            pointer-events: none;
        }

        .cta-section h2 {
            color: #fff;
            font-weight: 900;
            font-size: 1.8rem;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: rgba(255,255,255,0.8);
            font-size: 1rem;
            max-width: 520px;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

        .btn-brand-light {
            background: #fff;
            color: var(--brand-primary);
            border: none;
            border-radius: 24px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            position: relative;
            z-index: 1;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-brand-light:hover {
            background: #f0f4fa;
            color: var(--brand-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.2);
        }

        .btn-brand-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255,255,255,0.5);
            border-radius: 24px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            position: relative;
            z-index: 1;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-brand-outline-light:hover {
            background: rgba(255,255,255,0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== Brand Intro Block ========== */
        .brand-intro-block {
            background: var(--brand-bg-soft);
            border-radius: var(--brand-radius-lg);
            padding: 40px 36px;
            border: 1px solid var(--brand-border);
            position: relative;
        }

        .brand-intro-block .brand-badge {
            display: inline-block;
            background: var(--brand-primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
            padding: 5px 16px;
            border-radius: 20px;
            margin-bottom: 14px;
        }

        .brand-intro-block h3 {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--brand-text);
            margin-bottom: 12px;
        }

        .brand-intro-block p {
            font-size: 0.98rem;
            color: var(--brand-text-soft);
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--brand-bg-deep);
            color: #fff;
            padding: 56px 0 24px;
        }

        .site-footer .footer-brand {
            font-weight: 800;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
            color: #fff;
        }

        .site-footer .footer-brand .brand-logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            font-size: 1rem;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.55);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: rgba(255,255,255,0.85);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-links a {
            color: rgba(255,255,255,0.5);
            font-size: 0.88rem;
            transition: var(--brand-transition);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            margin-top: 40px;
            padding-top: 20px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.45);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
        }

        .footer-bottom a {
            color: rgba(255,255,255,0.5);
            font-size: 0.82rem;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-bottom .footer-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .inner-hero h1 {
                font-size: 2rem;
            }

            .inner-hero-visual img {
                height: 260px;
            }

            .section-title {
                font-size: 1.7rem;
            }

            .feature-block .feature-image img {
                height: 240px;
            }

            .cta-section {
                padding: 44px 32px;
            }
        }

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

            .inner-hero {
                padding: 48px 0 40px;
            }

            .inner-hero h1 {
                font-size: 1.6rem;
            }

            .inner-hero-desc {
                font-size: 0.95rem;
            }

            .inner-hero-visual {
                margin-top: 24px;
            }

            .inner-hero-visual img {
                height: 200px;
            }

            .section-title {
                font-size: 1.45rem;
            }

            .feature-block,
            .feature-block.reverse {
                flex-direction: column;
                gap: 24px;
            }

            .feature-block .feature-image img {
                height: 200px;
            }

            .cta-section {
                padding: 36px 24px;
                border-radius: var(--brand-radius);
            }

            .cta-section h2 {
                font-size: 1.4rem;
            }

            .nav-search-box {
                min-width: auto;
                margin-bottom: 8px;
            }

            .nav-cta-btn {
                padding: 8px 16px;
                font-size: 0.82rem;
            }

            .compare-table-wrap {
                overflow-x: auto;
            }

            .compare-table {
                min-width: 600px;
            }

            .brand-intro-block {
                padding: 28px 20px;
            }
        }

        @media (max-width: 520px) {
            .inner-hero h1 {
                font-size: 1.35rem;
            }

            .inner-hero-stats {
                gap: 16px;
            }

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

            .section-title {
                font-size: 1.3rem;
            }

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

            .cta-section h2 {
                font-size: 1.2rem;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

/* roulang page: category5 */
:root {
            --brand-primary: #0b4fa0;
            --brand-primary-dark: #083b7a;
            --brand-primary-light: #1a7ed1;
            --brand-secondary: #00a8ff;
            --brand-accent: #ff7a00;
            --brand-bg: #ffffff;
            --brand-bg-soft: #f4f7fb;
            --brand-bg-deep: #0a1f3c;
            --brand-text: #16233a;
            --brand-text-soft: #4a5a70;
            --brand-text-weak: #7b8ba5;
            --brand-border: #e4eaf2;
            --brand-radius: 14px;
            --brand-radius-sm: 8px;
            --brand-radius-lg: 20px;
            --brand-shadow-sm: 0 1px 4px rgba(10,30,60,0.06);
            --brand-shadow: 0 4px 20px rgba(10,30,60,0.08);
            --brand-shadow-lg: 0 8px 36px rgba(10,30,60,0.12);
            --brand-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --brand-transition: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--brand-font);
            color: var(--brand-text);
            background: var(--brand-bg);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--brand-primary);
            transition: var(--brand-transition);
        }
        a:hover {
            color: var(--brand-primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }
        .container-wide {
            max-width: 1320px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* Header / Nav */
        .site-header {
            background: var(--brand-bg);
            border-bottom: 1px solid var(--brand-border);
            box-shadow: 0 2px 12px rgba(10,30,60,0.05);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--brand-transition);
        }
        .site-header .navbar {
            padding: 12px 0;
            flex-wrap: wrap;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
        }
        .navbar-brand:hover {
            color: var(--brand-primary-dark);
        }
        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            color: var(--brand-text-soft);
            padding: 8px 16px !important;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: var(--brand-transition);
            white-space: nowrap;
        }
        .navbar-nav .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-bg-soft);
        }
        .navbar-nav .nav-link.active {
            color: var(--brand-primary);
            background: rgba(11,79,160,0.08);
        }
        .nav-search-box {
            display: flex;
            align-items: center;
            border: 1.5px solid var(--brand-border);
            border-radius: 24px;
            padding: 5px 12px 5px 16px;
            background: #fff;
            gap: 8px;
            transition: var(--brand-transition);
            min-width: 180px;
        }
        .nav-search-box:focus-within {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(11,79,160,0.1);
        }
        .nav-search-box input {
            border: none;
            outline: none;
            font-size: 0.9rem;
            width: 140px;
            color: var(--brand-text);
            background: transparent;
        }
        .nav-search-box input::placeholder {
            color: var(--brand-text-weak);
        }
        .nav-search-box button {
            background: none;
            border: none;
            color: var(--brand-text-weak);
            cursor: pointer;
            padding: 4px;
            font-size: 0.95rem;
        }
        .nav-cta-btn {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--brand-transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-cta-btn:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11,79,160,0.3);
        }
        .navbar-toggler {
            border: 1px solid var(--brand-border);
            border-radius: 8px;
            padding: 6px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(11,79,160,0.15);
            outline: none;
        }
        /* Section Base */
        .section-pad {
            padding: 72px 0;
        }
        .section-pad-tight {
            padding: 48px 0;
        }
        .section-title-wrap {
            margin-bottom: 40px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(11,79,160,0.08);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 0.82rem;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .section-title {
            font-weight: 800;
            font-size: 2rem;
            color: var(--brand-text);
            letter-spacing: -0.03em;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-lead {
            font-size: 1.1rem;
            color: var(--brand-text-soft);
            max-width: 760px;
            margin-bottom: 0;
        }
        /* Hero */
        .hero-odds {
            background: linear-gradient(180deg, #f4f7fb 0%, #ffffff 100%);
            padding: 72px 0 64px;
            border-bottom: 1px solid var(--brand-border);
        }
        .hero-odds .hero-title {
            font-weight: 800;
            font-size: 2.4rem;
            line-height: 1.25;
            letter-spacing: -0.04em;
            color: var(--brand-text);
            margin-bottom: 20px;
        }
        .hero-odds .hero-sub {
            font-size: 1.1rem;
            color: var(--brand-text-soft);
            max-width: 650px;
            margin-bottom: 28px;
        }
        .hero-odds .hero-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero-cover-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-lg);
            box-shadow: var(--brand-shadow-lg);
            overflow: hidden;
        }
        .hero-cover-card .cover-img-wrap {
            height: 230px;
            overflow: hidden;
            background: #eaf0f7;
            position: relative;
        }
        .hero-cover-card .cover-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-cover-card .cover-img-wrap::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            right: 0;
            height: 70px;
            background: linear-gradient(0deg, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0) 100%);
        }
        .hero-cover-card .cover-body {
            padding: 22px;
        }
        .cover-body h3 {
            font-weight: 800;
            font-size: 1.25rem;
            margin-bottom: 10px;
        }
        .cover-body p {
            font-size: 0.95rem;
            color: var(--brand-text-soft);
            margin-bottom: 18px;
        }
        .hero-stat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 16px;
        }
        .hero-stat-item {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            padding: 18px;
        }
        .hero-stat-item .stat-num {
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--brand-primary);
            line-height: 1.2;
        }
        .hero-stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--brand-text-weak);
        }
        /* Buttons */
        .btn-brand {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 12px 26px;
            font-weight: 700;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
        }
        .btn-brand:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(11,79,160,0.3);
        }
        .btn-outline-brand {
            background: #fff;
            color: var(--brand-primary);
            border: 1.5px solid var(--brand-primary);
            border-radius: 24px;
            padding: 11px 24px;
            font-weight: 700;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
        }
        .btn-outline-brand:hover {
            background: rgba(11,79,160,0.06);
            color: var(--brand-primary-dark);
            transform: translateY(-2px);
        }
        /* Info Cards */
        .info-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow-sm);
            padding: 26px;
            height: 100%;
            transition: var(--brand-transition);
        }
        .info-card:hover {
            box-shadow: var(--brand-shadow);
            transform: translateY(-4px);
            border-color: rgba(11,79,160,0.2);
        }
        .info-card .icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(11,79,160,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-primary);
            font-size: 1.2rem;
            margin-bottom: 18px;
        }
        .info-card h3 {
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .info-card p {
            font-size: 0.95rem;
            color: var(--brand-text-soft);
            margin-bottom: 0;
        }
        .odd-badge {
            display: inline-block;
            background: rgba(0,168,255,0.1);
            color: #006d9e;
            font-weight: 700;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 20px;
            margin-top: 12px;
        }
        /* Analysis Grid */
        .analysis-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 32px;
            align-items: start;
        }
        .analysis-grid.reverse {
            grid-template-columns: 0.9fr 1.1fr;
        }
        .analysis-img-wrap {
            border-radius: var(--brand-radius-lg);
            overflow: hidden;
            box-shadow: var(--brand-shadow);
            border: 1px solid var(--brand-border);
            background: #fff;
        }
        .analysis-img-wrap img {
            width: 100%;
            height: 330px;
            object-fit: cover;
        }
        .analysis-content h3 {
            font-weight: 800;
            font-size: 1.6rem;
            letter-spacing: -0.03em;
            margin-bottom: 18px;
        }
        .analysis-content p {
            color: var(--brand-text-soft);
            font-size: 1rem;
            margin-bottom: 16px;
        }
        .check-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }
        .check-list li {
            padding-left: 30px;
            position: relative;
            margin-bottom: 14px;
            color: var(--brand-text-soft);
        }
        .check-list li::before {
            content: "\f058";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 3px;
            color: var(--brand-primary);
        }
        /* Table / data panel */
        .data-panel {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-lg);
            box-shadow: var(--brand-shadow);
            overflow: hidden;
        }
        .data-panel .panel-head {
            background: var(--brand-bg-deep);
            color: #fff;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }
        .data-panel .panel-head h3 {
            font-weight: 800;
            font-size: 1.15rem;
            margin: 0;
        }
        .panel-head .live-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #2bd47c;
            border-radius: 50%;
            margin-right: 8px;
            animation: pulse 1.8s infinite;
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(43,212,124,0.5); }
            70% { box-shadow: 0 0 0 8px rgba(43,212,124,0); }
            100% { box-shadow: 0 0 0 0 rgba(43,212,124,0); }
        }
        .data-panel .panel-body {
            padding: 22px;
        }
        .odd-table {
            width: 100%;
            border-collapse: collapse;
        }
        .odd-table th {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--brand-text-weak);
            border-bottom: 1px solid var(--brand-border);
            padding: 10px 8px;
            text-align: left;
        }
        .odd-table td {
            padding: 12px 8px;
            border-bottom: 1px solid var(--brand-border);
            font-size: 0.9rem;
            color: var(--brand-text-soft);
        }
        .odd-table tr:last-child td {
            border-bottom: none;
        }
        .odd-up {
            color: #d94a4a;
            font-weight: 700;
        }
        .odd-down {
            color: #2b9d4f;
            font-weight: 700;
        }
        .odd-flat {
            color: var(--brand-text-weak);
            font-weight: 600;
        }
        .data-note {
            font-size: 0.82rem;
            color: var(--brand-text-weak);
            margin-top: 12px;
            text-align: right;
        }
        /* Process */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .process-step {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            padding: 24px 20px;
            position: relative;
            box-shadow: var(--brand-shadow-sm);
            transition: var(--brand-transition);
            height: 100%;
        }
        .process-step:hover {
            box-shadow: var(--brand-shadow);
            transform: translateY(-4px);
        }
        .process-step .step-num {
            font-weight: 800;
            font-size: 2.2rem;
            color: rgba(11,79,160,0.15);
            line-height: 1;
            margin-bottom: 12px;
        }
        .process-step h3 {
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 0.92rem;
            color: var(--brand-text-soft);
            margin-bottom: 0;
        }
        /* FAQ */
        .faq-item {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            overflow: hidden;
            margin-bottom: 16px;
            box-shadow: var(--brand-shadow-sm);
            transition: var(--brand-transition);
        }
        .faq-item:hover {
            box-shadow: var(--brand-shadow);
        }
        .faq-question {
            padding: 20px 24px;
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--brand-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--brand-transition);
        }
        .faq-question:hover {
            color: var(--brand-primary);
        }
        .faq-answer {
            padding: 0 24px 22px;
            font-size: 0.95rem;
            color: var(--brand-text-soft);
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--brand-primary);
            font-size: 0.9rem;
            transition: var(--brand-transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }
        /* CTA */
        .cta-odds {
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
            border-radius: var(--brand-radius-lg);
            padding: 48px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-odds::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 280px;
            height: 280px;
            background: rgba(255,255,255,0.06);
            border-radius: 50%;
        }
        .cta-odds::after {
            content: "";
            position: absolute;
            left: -60px;
            bottom: -100px;
            width: 260px;
            height: 260px;
            background: rgba(255,255,255,0.04);
            border-radius: 50%;
        }
        .cta-odds h2 {
            font-weight: 800;
            font-size: 1.8rem;
            letter-spacing: -0.03em;
            position: relative;
            z-index: 1;
        }
        .cta-odds p {
            font-size: 1rem;
            opacity: 0.9;
            max-width: 650px;
            margin: 12px 0 24px;
            position: relative;
            z-index: 1;
        }
        .cta-odds .btn-white {
            background: #fff;
            color: var(--brand-primary);
            border: none;
            border-radius: 24px;
            padding: 12px 28px;
            font-weight: 800;
            transition: var(--brand-transition);
            position: relative;
            z-index: 1;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-odds .btn-white:hover {
            background: #f0f4fa;
            color: var(--brand-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(0,0,0,0.18);
        }
        /* Footer */
        .site-footer {
            background: var(--brand-bg-deep);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 0;
        }
        .footer-brand {
            font-weight: 800;
            font-size: 1.5rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 0.92rem;
            line-height: 1.8;
            color: rgba(255,255,255,0.65);
            max-width: 360px;
        }
        .footer-heading {
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            transition: var(--brand-transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            margin-top: 40px;
            padding: 20px 0;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.5);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.65);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        /* Responsive */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                margin-top: 12px;
                border-top: 1px solid var(--brand-border);
                padding-top: 12px;
            }
            .navbar-nav {
                gap: 2px;
            }
            .nav-search-box {
                margin: 8px 0 12px;
                width: 100%;
                min-width: 0;
            }
            .nav-search-box input {
                width: 100%;
            }
            .nav-cta-btn {
                justify-content: center;
            }
            .hero-odds .hero-title {
                font-size: 2rem;
            }
            .analysis-grid, .analysis-grid.reverse {
                grid-template-columns: 1fr;
            }
            .analysis-img-wrap img {
                height: 260px;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-stat-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 767.98px) {
            .section-pad {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .hero-odds {
                padding: 48px 0 40px;
            }
            .hero-odds .hero-title {
                font-size: 1.7rem;
            }
            .hero-cover-card .cover-img-wrap {
                height: 180px;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .cta-odds {
                padding: 32px 22px;
            }
            .cta-odds h2 {
                font-size: 1.4rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .hero-stat-grid {
                grid-template-columns: 1fr;
            }
            .hero-odds .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-odds .hero-actions .btn {
                justify-content: center;
            }
            .brand-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .navbar-brand {
                font-size: 1.2rem;
            }
        }

/* roulang page: category6 */
:root {
            --brand-primary: #0b4fa0;
            --brand-primary-dark: #083b7a;
            --brand-primary-light: #1a7ed1;
            --brand-secondary: #00a8ff;
            --brand-accent: #ff7a00;
            --brand-bg: #ffffff;
            --brand-bg-soft: #f4f7fb;
            --brand-bg-deep: #0a1f3c;
            --brand-text: #16233a;
            --brand-text-soft: #4a5a70;
            --brand-text-weak: #7b8ba5;
            --brand-border: #e4eaf2;
            --brand-radius: 14px;
            --brand-radius-sm: 8px;
            --brand-radius-lg: 20px;
            --brand-shadow-sm: 0 1px 4px rgba(10,30,60,0.06);
            --brand-shadow: 0 4px 20px rgba(10,30,60,0.08);
            --brand-shadow-lg: 0 8px 36px rgba(10,30,60,0.12);
            --brand-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --brand-transition: all 0.25s ease;
        }

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--brand-font);
            color: var(--brand-text);
            background: var(--brand-bg);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a { text-decoration: none; color: var(--brand-primary); transition: var(--brand-transition); }
        a:hover { color: var(--brand-primary-dark); }

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

        .container { max-width: 1200px; }
        .container-wide { max-width: 1320px; margin-left: auto; margin-right: auto; padding-left: 24px; padding-right: 24px; }

        /* ========== Header / Nav ========== */
        .site-header {
            background: var(--brand-bg);
            border-bottom: 1px solid var(--brand-border);
            box-shadow: 0 2px 12px rgba(10,30,60,0.05);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--brand-transition);
        }
        .site-header .navbar { padding: 12px 0; flex-wrap: wrap; }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
        }
        .navbar-brand:hover { color: var(--brand-primary-dark); }
        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            color: var(--brand-text-soft);
            padding: 8px 16px !important;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: var(--brand-transition);
            white-space: nowrap;
        }
        .navbar-nav .nav-link:hover { color: var(--brand-primary); background: var(--brand-bg-soft); }
        .navbar-nav .nav-link.active { color: var(--brand-primary); background: rgba(11,79,160,0.08); }
        .nav-search-box {
            display: flex;
            align-items: center;
            border: 1.5px solid var(--brand-border);
            border-radius: 24px;
            padding: 5px 12px 5px 16px;
            background: #fff;
            gap: 8px;
            transition: var(--brand-transition);
            min-width: 180px;
        }
        .nav-search-box:focus-within { border-color: var(--brand-primary); box-shadow: 0 0 0 3px rgba(11,79,160,0.1); }
        .nav-search-box input { border: none; outline: none; font-size: 0.9rem; width: 140px; color: var(--brand-text); background: transparent; }
        .nav-search-box input::placeholder { color: var(--brand-text-weak); }
        .nav-search-box button { background: none; border: none; color: var(--brand-text-weak); cursor: pointer; padding: 4px; font-size: 0.95rem; }
        .nav-cta-btn {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--brand-transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-cta-btn:hover { background: var(--brand-primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(11,79,160,0.3); }
        .navbar-toggler { border: 1px solid var(--brand-border); border-radius: 8px; padding: 6px 10px; }
        .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(11,79,160,0.15); outline: none; }

        /* ========== Section Base ========== */
        .section-pad { padding: 72px 0; }
        .section-pad-tight { padding: 48px 0; }
        .section-title-wrap { margin-bottom: 40px; }
        .section-tag {
            display: inline-block;
            background: rgba(11,79,160,0.08);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 0.82rem;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.4px;
        }
        .section-title {
            font-weight: 800;
            font-size: 2rem;
            letter-spacing: -0.02em;
            color: var(--brand-text);
            margin-bottom: 14px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--brand-text-soft);
            max-width: 680px;
        }
        .text-brand-primary { color: var(--brand-primary); }
        .text-brand-soft { color: var(--brand-text-soft); }
        .fw-800 { font-weight: 800; }
        .fw-700 { font-weight: 700; }

        /* ========== Hero ========== */
        .data-hero {
            background: linear-gradient(135deg, #f4f7fb 0%, #e8eff8 50%, #ffffff 100%);
            padding: 72px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .data-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(11,79,160,0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 20px;
            padding: 5px 16px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--brand-primary);
            box-shadow: var(--brand-shadow-sm);
            margin-bottom: 18px;
        }
        .hero-title {
            font-weight: 800;
            font-size: 2.6rem;
            letter-spacing: -0.03em;
            line-height: 1.3;
            color: var(--brand-text);
            margin-bottom: 20px;
        }
        .hero-desc {
            font-size: 1.08rem;
            color: var(--brand-text-soft);
            max-width: 620px;
            margin-bottom: 28px;
        }
        .hero-cta-group { display: flex; gap: 12px; flex-wrap: wrap; }
        .btn-primary-brand {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: 24px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary-brand:hover { background: var(--brand-primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(11,79,160,0.3); }
        .btn-outline-brand {
            background: #fff;
            color: var(--brand-primary);
            border: 1.5px solid var(--brand-primary);
            border-radius: 24px;
            padding: 12px 26px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-brand:hover { background: rgba(11,79,160,0.06); color: var(--brand-primary-dark); }
        .hero-stat-list {
            display: flex;
            gap: 0;
            flex-wrap: wrap;
            margin-top: 36px;
            background: #fff;
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow);
            overflow: hidden;
        }
        .hero-stat-item { padding: 18px 24px; flex: 1; min-width: 120px; border-right: 1px solid var(--brand-border); }
        .hero-stat-item:last-child { border-right: none; }
        .hero-stat-value { font-size: 1.6rem; font-weight: 800; color: var(--brand-primary); }
        .hero-stat-label { font-size: 0.82rem; color: var(--brand-text-weak); font-weight: 600; }
        .hero-visual {
            background: #fff;
            border-radius: var(--brand-radius-lg);
            box-shadow: var(--brand-shadow-lg);
            padding: 24px;
            position: relative;
            z-index: 2;
        }
        .hero-visual img { border-radius: var(--brand-radius); }
        .hero-visual-tag {
            position: absolute;
            top: 32px;
            left: 32px;
            background: rgba(11,79,160,0.9);
            color: #fff;
            border-radius: 8px;
            padding: 6px 14px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.4px;
        }

        /* ========== Data Coverage ========== */
        .coverage-section { background: #fff; }
        .coverage-card {
            background: var(--brand-bg-soft);
            border-radius: var(--brand-radius);
            padding: 24px;
            text-align: center;
            transition: var(--brand-transition);
            border: 1px solid transparent;
        }
        .coverage-card:hover { border-color: var(--brand-border); box-shadow: var(--brand-shadow); transform: translateY(-3px); }
        .coverage-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 14px;
        }
        .coverage-card h5 { font-weight: 700; color: var(--brand-text); font-size: 1.05rem; }
        .coverage-card p { font-size: 0.9rem; color: var(--brand-text-soft); margin-bottom: 0; }

        /* ========== Feature Cards ========== */
        .feature-card {
            background: #fff;
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow);
            padding: 28px;
            height: 100%;
            transition: var(--brand-transition);
            border: 1px solid var(--brand-border);
        }
        .feature-card:hover { box-shadow: var(--brand-shadow-lg); transform: translateY(-4px); }
        .feature-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(11,79,160,0.08);
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
        }
        .feature-card h4 { font-weight: 700; font-size: 1.15rem; color: var(--brand-text); margin-bottom: 10px; }
        .feature-card p { font-size: 0.92rem; color: var(--brand-text-soft); margin-bottom: 0; }

        /* ========== Deep Data Panel ========== */
        .data-panel-section { background: var(--brand-bg-soft); }
        .data-panel {
            background: #fff;
            border-radius: var(--brand-radius-lg);
            box-shadow: var(--brand-shadow);
            padding: 36px;
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: center;
        }
        .data-panel-img { flex: 1; min-width: 280px; }
        .data-panel-img img { border-radius: var(--brand-radius); width: 100%; }
        .data-panel-content { flex: 1.3; min-width: 280px; }
        .data-panel-content h3 { font-weight: 800; font-size: 1.6rem; color: var(--brand-text); margin-bottom: 16px; }
        .data-panel-content p { font-size: 0.95rem; color: var(--brand-text-soft); }
        .data-panel-list { list-style: none; padding: 0; margin: 18px 0 0; }
        .data-panel-list li { padding: 8px 0; font-size: 0.92rem; color: var(--brand-text-soft); display: flex; align-items: center; gap: 10px; border-bottom: 1px dashed var(--brand-border); }
        .data-panel-list li:last-child { border-bottom: none; }
        .data-panel-list li i { color: var(--brand-primary); font-size: 0.9rem; }

        /* ========== Data Table Preview ========== */
        .table-preview-section { background: #fff; }
        .data-table-wrapper {
            border-radius: var(--brand-radius);
            box-shadow: var(--brand-shadow);
            overflow: hidden;
            border: 1px solid var(--brand-border);
        }
        .data-table-wrapper .table { margin-bottom: 0; font-size: 0.9rem; }
        .data-table-wrapper .table thead th {
            background: var(--brand-bg-deep);
            color: #fff;
            font-weight: 700;
            font-size: 0.85rem;
            border: none;
            padding: 14px 16px;
            white-space: nowrap;
        }
        .data-table-wrapper .table tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--brand-border);
            color: var(--brand-text-soft);
            font-size: 0.88rem;
            white-space: nowrap;
        }
        .data-table-wrapper .table tbody tr:last-child td { border-bottom: none; }
        .data-table-wrapper .table tbody tr:hover { background: var(--brand-bg-soft); }
        .data-table-wrapper .table .text-positive { color: #0a8f3c; font-weight: 700; }
        .data-table-wrapper .table .text-negative { color: #c0392b; font-weight: 700; }
        .table-caption-strip {
            background: var(--brand-bg-soft);
            padding: 10px 16px;
            font-size: 0.82rem;
            color: var(--brand-text-weak);
            font-weight: 600;
            border-bottom: 1px solid var(--brand-border);
        }

        /* ========== Usage Scenarios ========== */
        .scenario-section { background: var(--brand-bg-soft); }
        .scenario-card {
            background: #fff;
            border-radius: var(--brand-radius);
            padding: 26px;
            height: 100%;
            border: 1px solid var(--brand-border);
            transition: var(--brand-transition);
        }
        .scenario-card:hover { box-shadow: var(--brand-shadow); border-color: rgba(11,79,160,0.3); }
        .scenario-card .scenario-num {
            font-size: 1.4rem;
            font-weight: 800;
            color: rgba(11,79,160,0.25);
            display: block;
            margin-bottom: 10px;
        }
        .scenario-card h4 { font-weight: 700; font-size: 1.1rem; color: var(--brand-text); margin-bottom: 10px; }
        .scenario-card p { font-size: 0.9rem; color: var(--brand-text-soft); margin-bottom: 0; }

        /* ========== Process Steps ========== */
        .process-section { background: #fff; }
        .step-item {
            text-align: center;
            padding: 28px 20px;
            border-radius: var(--brand-radius);
            transition: var(--brand-transition);
            height: 100%;
        }
        .step-item:hover { background: var(--brand-bg-soft); }
        .step-circle {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            box-shadow: 0 4px 12px rgba(11,79,160,0.25);
        }
        .step-item h5 { font-weight: 700; font-size: 1.05rem; color: var(--brand-text); margin-bottom: 8px; }
        .step-item p { font-size: 0.88rem; color: var(--brand-text-soft); margin-bottom: 0; max-width: 260px; margin-left: auto; margin-right: auto; }

        /* ========== Quality Assurance ========== */
        .quality-section { background: var(--brand-bg-deep); }
        .quality-section .section-title { color: #fff; }
        .quality-section .section-subtitle { color: rgba(255,255,255,0.7); }
        .quality-section .section-tag { background: rgba(255,255,255,0.12); color: #dbe4ff; }
        .quality-item {
            background: rgba(255,255,255,0.06);
            border-radius: var(--brand-radius);
            padding: 24px;
            height: 100%;
            border: 1px solid rgba(255,255,255,0.08);
            transition: var(--brand-transition);
        }
        .quality-item:hover { background: rgba(255,255,255,0.1); }
        .quality-item-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(255,255,255,0.12);
            color: #dbe4ff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 12px;
        }
        .quality-item h5 { font-weight: 700; font-size: 1.02rem; color: #fff; margin-bottom: 8px; }
        .quality-item p { font-size: 0.88rem; color: rgba(255,255,255,0.7); margin-bottom: 0; }

        /* ========== FAQ ========== */
        .faq-section { background: var(--brand-bg-soft); }
        .accordion-item { border: 1px solid var(--brand-border); border-radius: 10px !important; margin-bottom: 12px; overflow: hidden; background: #fff; box-shadow: var(--brand-shadow-sm); }
        .accordion-button { font-weight: 700; font-size: 0.98rem; color: var(--brand-text); padding: 18px 22px; background: #fff; }
        .accordion-button:not(.collapsed) { background: #fff; color: var(--brand-primary); box-shadow: none; }
        .accordion-button:focus { box-shadow: 0 0 0 3px rgba(11,79,160,0.12); outline: none; }
        .accordion-button::after { filter: brightness(0.4); }
        .accordion-body { font-size: 0.92rem; color: var(--brand-text-soft); padding: 16px 22px 20px; background: #fff; }

        /* ========== CTA ========== */
        .cta-section { background: linear-gradient(135deg, var(--brand-primary) 0%, #0e5cbe 100%); }
        .cta-box {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .cta-box h2 { color: #fff; font-weight: 800; font-size: 1.9rem; letter-spacing: -0.02em; margin-bottom: 10px; }
        .cta-box p { color: rgba(255,255,255,0.85); font-size: 0.98rem; max-width: 520px; margin-bottom: 0; }
        .btn-white-cta {
            background: #fff;
            color: var(--brand-primary);
            border: none;
            border-radius: 24px;
            padding: 12px 30px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .btn-white-cta:hover { background: #f0f4fa; color: var(--brand-primary-dark); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.2); }

        /* ========== Footer ========== */
        .site-footer { background: #0a1628; color: rgba(255,255,255,0.7); padding: 56px 0 24px; }
        .footer-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 1.3rem; color: #fff; margin-bottom: 14px; }
        .footer-desc { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-heading { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 16px; letter-spacing: 0.3px; }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 8px; }
        .footer-links a { color: rgba(255,255,255,0.55); font-size: 0.88rem; transition: var(--brand-transition); }
        .footer-links a:hover { color: #fff; padding-left: 4px; }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.08);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.45);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: #fff; }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hero-title { font-size: 2.2rem; }
            .section-title { font-size: 1.7rem; }
            .data-hero { padding: 48px 0 40px; }
            .section-pad { padding: 56px 0; }
        }
        @media (max-width: 768px) {
            .navbar-brand { font-size: 1.2rem; }
            .nav-search-box { min-width: auto; width: 130px; }
            .nav-search-box input { width: 80px; }
            .nav-cta-btn { font-size: 0.82rem; padding: 8px 16px; }
            .hero-title { font-size: 1.8rem; }
            .hero-desc { font-size: 0.95rem; }
            .hero-stat-list { flex-direction: column; }
            .hero-stat-item { border-right: none; border-bottom: 1px solid var(--brand-border); padding: 14px 18px; }
            .hero-stat-item:last-child { border-bottom: none; }
            .section-title { font-size: 1.5rem; }
            .section-subtitle { font-size: 0.92rem; }
            .data-panel { padding: 24px; flex-direction: column; }
            .data-panel-content h3 { font-size: 1.3rem; }
            .cta-box h2 { font-size: 1.5rem; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .hero-title { font-size: 1.5rem; }
            .hero-cta-group { flex-direction: column; }
            .btn-primary-brand, .btn-outline-brand { width: 100%; justify-content: center; }
            .section-pad { padding: 44px 0; }
            .section-title { font-size: 1.3rem; }
            .data-table-wrapper .table { font-size: 0.78rem; }
            .data-table-wrapper .table thead th { font-size: 0.72rem; padding: 10px 8px; }
            .data-table-wrapper .table tbody td { font-size: 0.76rem; padding: 10px 8px; }
            .nav-cta-btn { display: none; }
        }