/* roulang page: index */
:root {
            --blue-primary: #1E6FD9;
            --blue-primary-dark: #1758B0;
            --blue-light: #2F9BFF;
            --blue-pale: #E8F1FF;
            --blue-gray: #F5F7FB;
            --card-white: #FFFFFF;
            --border-color: #E3EAF5;
            --text-main: #1A2B3E;
            --text-secondary: #5A6B80;
            --text-muted: #8A94A6;
            --green-status: #16A34A;
            --orange-status: #F59E0B;
            --footer-dark: #0F1E3C;
            --shadow-card: 0 8px 24px rgba(15, 30, 60, 0.06);
            --shadow-card-hover: 0 16px 36px rgba(15, 30, 60, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 20px;
            --transition-base: all 0.25s ease;
            --font-family-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --section-padding: 80px 0;
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family-base);
            background-color: var(--blue-gray);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15.5px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        button:focus,
        a:focus,
        input:focus,
        select:focus,
        textarea:focus {
            outline: 2px solid var(--blue-light);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 顶部信息条 ========== */
        .top-info-bar {
            background: var(--blue-pale);
            border-bottom: 1px solid var(--border-color);
            font-size: 12.5px;
            color: var(--text-secondary);
            padding: 8px 0;
            letter-spacing: 0.3px;
        }
        .top-info-bar .domain-text {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .top-info-bar .live-hint {
            color: var(--green-status);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .top-info-bar .live-hint::before {
            content: '';
            width: 7px;
            height: 7px;
            background: var(--green-status);
            border-radius: 50%;
            display: inline-block;
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }
        .top-info-bar .top-actions a {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 6px;
            transition: var(--transition-base);
        }
        .top-info-bar .top-actions a:hover {
            color: var(--blue-primary);
            background: rgba(30, 111, 217, 0.08);
        }
        .top-info-bar .top-actions a.btn-join-top {
            background: var(--blue-primary);
            color: #fff;
            padding: 4px 16px;
            border-radius: 20px;
            font-weight: 600;
        }
        .top-info-bar .top-actions a.btn-join-top:hover {
            background: var(--blue-primary-dark);
            color: #fff;
            box-shadow: 0 4px 12px rgba(30, 111, 217, 0.3);
        }

        /* ========== 主导航 ========== */
        .main-header {
            background: var(--card-white);
            box-shadow: 0 2px 12px rgba(15, 30, 60, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
        }
        .main-header .navbar {
            padding: 14px 0;
            background: transparent;
        }
        .main-header .navbar-brand {
            font-weight: 800;
            font-size: 24px;
            color: var(--blue-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
        }
        .main-header .navbar-brand .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--blue-primary);
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 900;
            letter-spacing: 0;
        }
        .main-header .navbar-brand:hover {
            color: var(--blue-primary-dark);
        }
        .main-header .navbar-nav {
            gap: 4px;
        }
        .main-header .navbar-nav .nav-link {
            color: var(--text-main);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: 8px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .main-header .navbar-nav .nav-link:hover {
            color: var(--blue-primary);
            background: var(--blue-pale);
        }
        .main-header .navbar-nav .nav-link.active {
            color: var(--blue-primary);
            background: var(--blue-pale);
            font-weight: 600;
        }
        .search-box-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--blue-gray);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 6px 14px;
            min-width: 200px;
        }
        .search-box-nav input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }
        .search-box-nav input::placeholder {
            color: var(--text-muted);
        }
        .search-box-nav .search-icon {
            color: var(--text-muted);
            font-size: 14px;
        }
        .btn-primary-custom {
            background: var(--blue-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary-custom:hover {
            background: var(--blue-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(30, 111, 217, 0.35);
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--blue-primary);
            border: 1.5px solid var(--blue-primary);
            border-radius: var(--radius-btn);
            padding: 9px 22px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-outline-custom:hover {
            background: var(--blue-pale);
            color: var(--blue-primary-dark);
            border-color: var(--blue-primary-dark);
            transform: translateY(-2px);
        }
        .navbar-toggler {
            border: 1.5px solid var(--border-color);
            border-radius: 8px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.2);
            outline: none;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231E6FD9' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ========== Hero 白皮书获客风格 ========== */
        .hero-section {
            background: linear-gradient(135deg, #E8F1FF 0%, #F5F7FB 40%, #FFFFFF 100%);
            padding: 70px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 400px;
            height: 400px;
            background: rgba(30, 111, 217, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 250px;
            height: 250px;
            background: rgba(47, 155, 255, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-content-wrapper {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(30, 111, 217, 0.1);
            color: var(--blue-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 20px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero-title {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .hero-title .highlight {
            color: var(--blue-primary);
        }
        .hero-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 560px;
            margin-bottom: 30px;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 20px;
        }
        .hero-kpi-row {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 28px;
        }
        .hero-kpi-item {
            display: flex;
            flex-direction: column;
        }
        .hero-kpi-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--blue-primary);
            line-height: 1.2;
        }
        .hero-kpi-label {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.5px;
        }
        .hero-whitepaper-card {
            background: var(--card-white);
            border-radius: 18px;
            box-shadow: var(--shadow-card);
            padding: 30px 28px;
            border: 1px solid var(--border-color);
            transition: var(--transition-base);
        }
        .hero-whitepaper-card:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .whitepaper-cover {
            background: linear-gradient(135deg, #1E6FD9 0%, #2F9BFF 100%);
            border-radius: 12px;
            padding: 28px 24px;
            color: #fff;
            text-align: center;
            margin-bottom: 20px;
            position: relative;
            overflow: hidden;
        }
        .whitepaper-cover::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 120px;
            height: 120px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 50%;
        }
        .whitepaper-cover h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }
        .whitepaper-cover p {
            font-size: 14px;
            opacity: 0.92;
            margin-bottom: 0;
            position: relative;
            z-index: 1;
        }
        .whitepaper-toc {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .whitepaper-toc li {
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px dashed var(--border-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .whitepaper-toc li::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--blue-primary);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .whitepaper-form input {
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 14px;
            width: 100%;
            transition: var(--transition-base);
            background: var(--blue-gray);
        }
        .whitepaper-form input:focus {
            border-color: var(--blue-primary);
            box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.15);
            outline: none;
            background: #fff;
        }
        .whitepaper-form .btn {
            width: 100%;
            margin-top: 10px;
        }
        .whitepaper-note {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 12px;
            text-align: center;
        }
        @media (min-width: 992px) {
            .hero-section {
                padding: 80px 0 90px;
            }
            .hero-title {
                font-size: 42px;
            }
        }

        /* ========== 数据带 ========== */
        .stats-band {
            background: var(--blue-primary);
            padding: 36px 0;
            margin-top: -10px;
        }
        .stats-band .stat-item {
            text-align: center;
            padding: 12px 20px;
        }
        .stats-band .stat-number {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stats-band .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.82);
            letter-spacing: 0.5px;
        }
        @media (max-width: 767px) {
            .stats-band .stat-item {
                padding: 10px 8px;
            }
            .stats-band .stat-number {
                font-size: 26px;
            }
        }

        /* ========== 通用 Section ========== */
        .section-block {
            padding: var(--section-padding);
            position: relative;
        }
        .section-block.bg-white {
            background: var(--card-white);
        }
        .section-block.bg-dark {
            background: var(--footer-dark);
            color: #fff;
        }
        .section-block.bg-dark .section-title,
        .section-block.bg-dark .section-desc {
            color: #fff;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            margin-bottom: 36px;
        }
        .text-primary-custom {
            color: var(--blue-primary) !important;
        }

        /* ========== 卡片通用 ========== */
        .card-common {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            transition: var(--transition-base);
            height: 100%;
        }
        .card-common:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(30, 111, 217, 0.3);
        }
        .card-common .card-icon {
            width: 48px;
            height: 48px;
            background: var(--blue-pale);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--blue-primary);
            margin-bottom: 16px;
        }
        .card-common h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .card-common p {
            font-size: 14.5px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.75;
        }
        .card-img-cover {
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 16px;
        }
        .card-img-cover img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            transition: var(--transition-base);
        }
        .card-img-cover img:hover {
            transform: scale(1.03);
        }

        /* ========== 标签 ========== */
        .tag-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .tag-badge.live {
            background: #E8F8ED;
            color: var(--green-status);
        }
        .tag-badge.upcoming {
            background: #FEF3E2;
            color: var(--orange-status);
        }
        .tag-badge.replay {
            background: var(--blue-pale);
            color: var(--blue-primary);
        }
        .tag-badge.data {
            background: #E6F0FF;
            color: var(--blue-primary);
        }

        /* ========== 适用人群 ========== */
        .audience-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 18px;
        }
        .audience-list li {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: var(--transition-base);
            box-shadow: var(--shadow-card);
        }
        .audience-list li:hover {
            border-color: rgba(30, 111, 217, 0.3);
            transform: translateY(-2px);
        }
        .audience-list li .aud-icon {
            width: 40px;
            height: 40px;
            background: var(--blue-pale);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--blue-primary);
            flex-shrink: 0;
        }
        .audience-list li strong {
            display: block;
            font-size: 16px;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .audience-list li span {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 谁适合/谁不适合 对比 ========== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .compare-box {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            padding: 30px 28px;
            box-shadow: var(--shadow-card);
        }
        .compare-box.fit {
            border-top: 4px solid var(--green-status);
        }
        .compare-box.not-fit {
            border-top: 4px solid var(--orange-status);
        }
        .compare-box h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-main);
        }
        .compare-box ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .compare-box ul li {
            padding: 8px 0;
            font-size: 14.5px;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.7;
        }
        .compare-box.fit ul li::before {
            content: '✓';
            color: var(--green-status);
            font-weight: 700;
            flex-shrink: 0;
        }
        .compare-box.not-fit ul li::before {
            content: '×';
            color: var(--orange-status);
            font-weight: 700;
            flex-shrink: 0;
        }

        /* ========== 匹配方案 ========== */
        .match-plan-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }
        .match-plan-card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .match-plan-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .match-plan-card .mp-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .match-plan-card .mp-icon {
            width: 44px;
            height: 44px;
            background: var(--blue-pale);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--blue-primary);
            flex-shrink: 0;
        }
        .match-plan-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 0;
            color: var(--text-main);
        }
        .match-plan-card p {
            font-size: 13.5px;
            color: var(--text-secondary);
            margin-bottom: 12px;
            line-height: 1.7;
            flex-grow: 1;
        }
        .match-plan-card .btn {
            align-self: flex-start;
        }

        /* ========== 套餐价格 ========== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            align-items: stretch;
        }
        .pricing-card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 34px 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .pricing-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-card-hover);
        }
        .pricing-card.featured {
            border: 2px solid var(--blue-primary);
            box-shadow: 0 12px 36px rgba(30, 111, 217, 0.18);
        }
        .pricing-card .popular-tag {
            position: absolute;
            top: 16px;
            right: -38px;
            background: var(--blue-primary);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 40px;
            transform: rotate(40deg);
            letter-spacing: 0.5px;
        }
        .pricing-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .pricing-card .price {
            font-size: 38px;
            font-weight: 800;
            color: var(--blue-primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .pricing-card .price-unit {
            font-size: 14px;
            color: var(--text-muted);
        }
        .pricing-card .price-sub {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .pricing-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            flex-grow: 1;
        }
        .pricing-card ul li {
            padding: 7px 0;
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.65;
        }
        .pricing-card ul li::before {
            content: '✓';
            color: var(--green-status);
            font-weight: 700;
            flex-shrink: 0;
        }
        .pricing-card .btn {
            width: 100%;
        }

        /* ========== 评价墙 ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 22px;
        }
        .testimonial-card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .testimonial-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .testimonial-card .stars {
            color: var(--orange-status);
            font-size: 15px;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }
        .testimonial-card .quote {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-card .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--blue-pale);
            color: var(--blue-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }
        .testimonial-card .author-info strong {
            display: block;
            font-size: 14.5px;
            color: var(--text-main);
        }
        .testimonial-card .author-info span {
            font-size: 12.5px;
            color: var(--text-muted);
        }

        /* ========== 社区热帖 ========== */
        .community-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 16px;
        }
        .community-list li {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .community-list li:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .community-list .post-topic {
            width: 48px;
            height: 48px;
            background: var(--blue-pale);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--blue-primary);
            flex-shrink: 0;
        }
        .community-list .post-info strong {
            display: block;
            font-size: 14.5px;
            color: var(--text-main);
            margin-bottom: 3px;
        }
        .community-list .post-info span {
            font-size: 12.5px;
            color: var(--text-muted);
        }

        /* ========== 资讯列表 ========== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 22px;
        }
        .news-card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .news-card .news-img {
            height: 180px;
            overflow: hidden;
        }
        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }
        .news-card:hover .news-img img {
            transform: scale(1.04);
        }
        .news-card .news-body {
            padding: 20px 22px;
        }
        .news-card .news-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .news-card .news-body p {
            font-size: 13.5px;
            color: var(--text-secondary);
            margin-bottom: 12px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-meta {
            font-size: 12.5px;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro-section {
            background: var(--card-white);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .brand-intro-text {
            font-size: 15.5px;
            color: var(--text-secondary);
            line-height: 2;
            text-align: justify;
        }
        .brand-intro-text strong {
            color: var(--text-main);
        }

        /* ========== 开通CTA ========== */
        .cta-conversion {
            background: linear-gradient(135deg, #1E6FD9 0%, #2F9BFF 60%, #4FA8FF 100%);
            border-radius: 22px;
            padding: 50px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-conversion::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-conversion h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-conversion p {
            font-size: 15.5px;
            opacity: 0.92;
            margin-bottom: 24px;
            max-width: 520px;
            position: relative;
            z-index: 1;
            line-height: 1.8;
        }
        .cta-conversion .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-conversion .cta-form input {
            flex: 1;
            min-width: 200px;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.15);
            padding: 12px 18px;
            color: #fff;
            font-size: 14.5px;
            backdrop-filter: blur(8px);
            transition: var(--transition-base);
        }
        .cta-conversion .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.75);
        }
        .cta-conversion .cta-form input:focus {
            outline: none;
            border-color: #fff;
            background: rgba(255, 255, 255, 0.25);
            box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.2);
        }
        .cta-conversion .btn-cta-white {
            background: #fff;
            color: var(--blue-primary);
            border: none;
            border-radius: 10px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .cta-conversion .btn-cta-white:hover {
            background: #F0F6FF;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }
        .cta-benefits-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            position: relative;
            z-index: 1;
        }
        .cta-benefits-list li {
            font-size: 13.5px;
            display: flex;
            align-items: center;
            gap: 6px;
            opacity: 0.9;
        }
        .cta-benefits-list li::before {
            content: '✓';
            font-weight: 700;
            opacity: 1;
        }

        /* ========== FAQ ========== */
        .faq-section .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--card-white);
            box-shadow: var(--shadow-card);
        }
        .faq-section .accordion-button {
            background: transparent;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            padding: 18px 22px;
            box-shadow: none;
            border-radius: 12px;
        }
        .faq-section .accordion-button:not(.collapsed) {
            background: var(--blue-pale);
            color: var(--blue-primary);
            border-bottom: 1px solid var(--border-color);
        }
        .faq-section .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.2);
            border-color: var(--blue-primary);
        }
        .faq-section .accordion-body {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding: 18px 22px;
        }

        /* ========== 保障说明 ========== */
        .guarantee-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 18px;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .guarantee-list li {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .guarantee-list li:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .guarantee-list .guar-icon {
            width: 52px;
            height: 52px;
            background: var(--blue-pale);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--blue-primary);
            margin: 0 auto 14px;
        }
        .guarantee-list strong {
            display: block;
            font-size: 16px;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .guarantee-list span {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            display: block;
        }

        /* ========== 截图/演示 ========== */
        .demo-showcase {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .demo-item {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .demo-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .demo-item .demo-img {
            height: 200px;
            overflow: hidden;
        }
        .demo-item .demo-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }
        .demo-item:hover .demo-img img {
            transform: scale(1.05);
        }
        .demo-item .demo-body {
            padding: 20px 22px;
        }
        .demo-item .demo-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .demo-item .demo-body p {
            font-size: 13.5px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== 成功案例 ========== */
        .case-story-card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 30px 28px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            align-items: center;
        }
        .case-story-card .case-img {
            border-radius: 12px;
            overflow: hidden;
        }
        .case-story-card .case-img img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            border-radius: 12px;
        }
        .case-story-card .case-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .case-story-card .case-content p {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .case-story-card .case-metrics {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .case-story-card .case-metrics .metric-number {
            font-size: 24px;
            font-weight: 800;
            color: var(--blue-primary);
            line-height: 1.2;
        }
        .case-story-card .case-metrics .metric-label {
            font-size: 12.5px;
            color: var(--text-muted);
        }
        @media (max-width: 767px) {
            .case-story-card {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--footer-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
            font-size: 14px;
        }
        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .site-footer .footer-desc {
            font-size: 13.5px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .site-footer h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13.5px;
            transition: var(--transition-base);
        }
        .site-footer ul li 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;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.5);
        }
        .btn-back-top {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            padding: 8px 16px;
            font-size: 13px;
            transition: var(--transition-base);
        }
        .btn-back-top:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991px) {
            :root {
                --section-padding: 60px 0;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 15.5px;
            }
            .section-title {
                font-size: 24px;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .search-box-nav {
                display: none;
            }
            .main-header .navbar-nav {
                gap: 2px;
                padding-top: 12px;
            }
            .main-header .navbar-nav .nav-link {
                padding: 10px 14px;
                font-size: 14.5px;
            }
            .top-info-bar .top-actions {
                font-size: 11.5px;
            }
            .top-info-bar .top-actions a {
                padding: 3px 8px;
            }
            .cta-conversion {
                padding: 36px 28px;
            }
            .cta-conversion h2 {
                font-size: 24px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-padding: 48px 0;
            }
            .hero-section {
                padding: 50px 0 60px;
            }
            .hero-title {
                font-size: 27px;
                line-height: 1.35;
            }
            .hero-subtitle {
                font-size: 14.5px;
            }
            .hero-cta-group .btn {
                width: 100%;
                text-align: center;
            }
            .hero-whitepaper-card {
                padding: 20px 18px;
                margin-top: 28px;
            }
            .section-title {
                font-size: 21px;
            }
            .section-desc {
                font-size: 14.5px;
            }
            .stats-band .stat-number {
                font-size: 22px;
            }
            .pricing-grid,
            .testimonial-grid,
            .news-list,
            .demo-showcase,
            .match-plan-grid,
            .guarantee-list,
            .community-list,
            .audience-list {
                grid-template-columns: 1fr;
            }
            .cta-conversion {
                padding: 28px 20px;
                border-radius: 14px;
            }
            .cta-conversion h2 {
                font-size: 20px;
            }
            .cta-conversion .cta-form {
                flex-direction: column;
            }
            .cta-conversion .cta-form input {
                width: 100%;
                min-width: auto;
            }
            .cta-conversion .btn-cta-white {
                width: 100%;
            }
            .case-story-card {
                padding: 20px 18px;
            }
            .top-info-bar .domain-text {
                font-size: 11px;
            }
            .top-info-bar .live-hint {
                font-size: 11px;
            }
            .site-footer {
                padding: 40px 0 20px;
                font-size: 13px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 23px;
            }
            .hero-kpi-row {
                gap: 16px;
            }
            .hero-kpi-number {
                font-size: 22px;
            }
            .pricing-card {
                padding: 24px 18px;
            }
            .pricing-card .price {
                font-size: 30px;
            }
            .top-info-bar {
                font-size: 11px;
                padding: 5px 0;
            }
        }

/* roulang page: category2 */
:root {
            --blue-primary: #1E6FD9;
            --blue-primary-dark: #1758B0;
            --blue-light: #2F9BFF;
            --blue-pale: #E8F1FF;
            --blue-gray: #F5F7FB;
            --card-white: #FFFFFF;
            --border-color: #E3EAF5;
            --text-main: #1A2B3E;
            --text-secondary: #5A6B80;
            --text-muted: #8A94A6;
            --green-status: #16A34A;
            --orange-status: #F59E0B;
            --red-status: #DC2626;
            --footer-dark: #0F1E3C;
            --shadow-card: 0 8px 24px rgba(15, 30, 60, 0.06);
            --shadow-card-hover: 0 16px 36px rgba(15, 30, 60, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 20px;
            --transition-base: all 0.25s ease;
            --font-family-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --section-padding: 80px 0;
            --container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family-base);
            background-color: var(--blue-gray);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15.5px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        button:focus,
        a:focus,
        input:focus,
        select:focus,
        textarea:focus {
            outline: 2px solid var(--blue-light);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }

        .top-info-bar {
            background: var(--blue-pale);
            font-size: 12.5px;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .top-info-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .top-info-bar .domain-text {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .top-info-bar .top-actions {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .top-info-bar .top-actions a {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 6px;
            transition: var(--transition-base);
            font-size: 12.5px;
        }
        .top-info-bar .top-actions a:hover {
            color: var(--blue-primary);
            background: rgba(30, 111, 217, 0.08);
        }
        .top-info-bar .top-actions a.btn-join-top {
            background: var(--blue-primary);
            color: #fff;
            padding: 4px 16px;
            border-radius: 20px;
            font-weight: 600;
        }
        .top-info-bar .top-actions a.btn-join-top:hover {
            background: var(--blue-primary-dark);
            color: #fff;
            box-shadow: 0 4px 12px rgba(30, 111, 217, 0.3);
        }

        .main-header {
            background: var(--card-white);
            box-shadow: 0 2px 12px rgba(15, 30, 60, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
        }
        .main-header .navbar {
            padding: 14px 0;
            background: transparent;
        }
        .main-header .navbar-brand {
            font-weight: 800;
            font-size: 24px;
            color: var(--blue-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
        }
        .main-header .navbar-brand .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--blue-primary);
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 900;
            letter-spacing: 0;
        }
        .main-header .navbar-brand:hover {
            color: var(--blue-primary-dark);
        }
        .main-header .navbar-nav {
            gap: 4px;
        }
        .main-header .navbar-nav .nav-link {
            color: var(--text-main);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: 8px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .main-header .navbar-nav .nav-link:hover {
            color: var(--blue-primary);
            background: var(--blue-pale);
        }
        .main-header .navbar-nav .nav-link.active {
            color: var(--blue-primary);
            background: var(--blue-pale);
            font-weight: 600;
        }
        .search-box-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--blue-gray);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 6px 14px;
            min-width: 200px;
        }
        .search-box-nav input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }
        .search-box-nav input::placeholder {
            color: var(--text-muted);
        }
        .search-box-nav .search-icon {
            color: var(--text-muted);
            font-size: 14px;
        }
        .btn-primary-custom {
            background: var(--blue-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary-custom:hover {
            background: var(--blue-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(30, 111, 217, 0.25);
        }

        .btn-outline-custom {
            background: #fff;
            color: var(--blue-primary);
            border: 1px solid var(--blue-primary);
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-outline-custom:hover {
            background: var(--blue-pale);
            border-color: var(--blue-primary-dark);
            color: var(--blue-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(30, 111, 217, 0.15);
        }

        .badge-status {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .badge-green {
            background: #E8F8EF;
            color: var(--green-status);
        }
        .badge-orange {
            background: #FFF6E8;
            color: var(--orange-status);
        }
        .badge-blue {
            background: var(--blue-pale);
            color: var(--blue-primary);
        }
        .badge-red {
            background: #FDE8E8;
            color: var(--red-status);
        }

        .page-hero {
            background: linear-gradient(135deg, #E8F1FF 0%, #F5F7FB 60%, #FFFFFF 100%);
            padding: 50px 0 40px;
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(30, 111, 217, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero .breadcrumb-custom {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .page-hero .breadcrumb-custom a {
            color: var(--text-secondary);
        }
        .page-hero .breadcrumb-custom a:hover {
            color: var(--blue-primary);
        }
        .page-hero .breadcrumb-custom .separator {
            color: var(--text-muted);
            font-size: 12px;
        }
        .page-hero h1 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
            line-height: 1.35;
        }
        .page-hero h1 .highlight {
            color: var(--blue-primary);
        }
        .page-hero .lead-text {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 780px;
            margin-bottom: 0;
            line-height: 1.8;
        }

        .section-block {
            padding: var(--section-padding);
        }
        .section-block .section-heading {
            margin-bottom: 36px;
        }
        .section-block .section-heading h2 {
            font-size: 25px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .section-block .section-heading p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 0;
            max-width: 680px;
        }

        .card {
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            background: var(--card-white);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .data-card-stat {
            padding: 22px;
            text-align: center;
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .data-card-stat:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .data-card-stat .stat-value {
            font-size: 32px;
            font-weight: 800;
            color: var(--blue-primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .data-card-stat .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .table-custom {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
        }
        .table-custom thead th {
            background: var(--blue-pale);
            color: var(--text-main);
            font-weight: 600;
            font-size: 13.5px;
            padding: 16px 14px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
            white-space: nowrap;
        }
        .table-custom tbody td {
            padding: 15px 14px;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-color);
            white-space: nowrap;
            vertical-align: middle;
        }
        .table-custom tbody tr:last-child td {
            border-bottom: none;
        }
        .table-custom tbody tr:hover td {
            background: #FAFCFF;
        }
        .table-custom .team-name {
            font-weight: 600;
            color: var(--text-main);
        }
        .table-custom .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            border-radius: 6px;
            font-weight: 700;
            font-size: 13px;
            color: #fff;
            background: var(--text-muted);
        }
        .table-custom .rank-badge.top1 {
            background: var(--green-status);
        }
        .table-custom .rank-badge.top2 {
            background: var(--blue-primary);
        }
        .table-custom .rank-badge.top3 {
            background: var(--orange-status);
        }
        .table-custom .form-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            margin-right: 4px;
        }
        .table-custom .form-dot.win {
            background: var(--green-status);
        }
        .table-custom .form-dot.draw {
            background: var(--text-muted);
        }
        .table-custom .form-dot.loss {
            background: var(--red-status);
        }

        .stats-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: var(--transition-base);
            height: 100%;
        }
        .stats-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .stats-card .stats-card-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .stats-card .stats-card-header .stats-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--blue-pale);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--blue-primary);
            flex-shrink: 0;
        }
        .stats-card .stats-card-header h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 2px;
        }
        .stats-card .stats-card-header .tag-small {
            font-size: 12px;
            color: var(--text-muted);
        }
        .stats-card .stats-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 14px;
        }
        .stats-card .stats-item:last-child {
            border-bottom: none;
        }
        .stats-card .stats-item .label {
            color: var(--text-secondary);
        }
        .stats-card .stats-item .value {
            font-weight: 600;
            color: var(--text-main);
        }

        .data-list-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .data-list-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .data-list-card .card-img-wrap {
            position: relative;
            padding-top: 56.25%;
            overflow: hidden;
            background: var(--blue-pale);
        }
        .data-list-card .card-img-wrap img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }
        .data-list-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .data-list-card .card-body-custom {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .data-list-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .data-list-card .card-meta .badge-status {
            font-size: 11.5px;
        }
        .data-list-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .data-list-card .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 14px;
            line-height: 1.7;
            flex: 1;
        }
        .data-list-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--blue-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .data-list-card .card-link:hover {
            color: var(--blue-primary-dark);
        }

        .info-panel {
            background: var(--blue-pale);
            border-radius: var(--radius-card);
            padding: 32px;
            border: 1px solid var(--border-color);
        }
        .info-panel h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .info-panel p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 12px;
            line-height: 1.8;
        }

        .cta-panel {
            background: var(--footer-dark);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            border: none;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(47, 155, 255, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-panel h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-panel p {
            color: #C7D6EE;
            font-size: 15px;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
            max-width: 600px;
        }
        .cta-panel .btn-white {
            background: #fff;
            color: var(--blue-primary);
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition-base);
            position: relative;
            z-index: 1;
            border: none;
            display: inline-block;
        }
        .cta-panel .btn-white:hover {
            background: var(--blue-pale);
            color: var(--blue-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(255, 255, 255, 0.2);
        }

        .faq-item {
            background: #fff;
            border-radius: 14px;
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-item .faq-question {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--blue-primary);
            font-size: 18px;
            transition: var(--transition-base);
        }
        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .site-footer {
            background: var(--footer-dark);
            color: #C7D6EE;
            padding: 60px 0 28px;
            margin-top: 0;
        }
        .site-footer .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #A9BAD4;
            margin-bottom: 0;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul li a {
            color: #A9BAD4;
            font-size: 14px;
            transition: var(--transition-base);
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: #A9BAD4;
        }
        .btn-back-top {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            padding: 8px 18px;
            font-size: 13px;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .btn-back-top:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
        }

        @media (max-width: 991.98px) {
            .main-header .navbar {
                padding: 10px 0;
            }
            .main-header .search-box-nav {
                min-width: 160px;
            }
            .main-header .navbar-nav {
                gap: 0;
                padding: 12px 0;
            }
            .main-header .navbar-nav .nav-link {
                padding: 10px 14px;
                font-size: 14.5px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .section-block {
                padding: 48px 0;
            }
            .cta-panel {
                padding: 36px 28px;
            }
            .cta-panel h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --section-padding: 40px 0;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-hero {
                padding: 32px 0 28px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero .lead-text {
                font-size: 14.5px;
            }
            .section-block .section-heading h2 {
                font-size: 21px;
            }
            .data-card-stat .stat-value {
                font-size: 26px;
            }
            .table-custom {
                font-size: 12.5px;
            }
            .table-custom thead th,
            .table-custom tbody td {
                padding: 10px 8px;
                font-size: 12.5px;
            }
            .stats-card {
                padding: 18px;
            }
            .cta-panel {
                padding: 28px 20px;
            }
            .cta-panel h2 {
                font-size: 19px;
            }
            .cta-panel p {
                font-size: 14px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                text-align: center;
            }
            .top-info-bar .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .main-header .navbar-brand {
                font-size: 20px;
            }
            .main-header .navbar-brand .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 17px;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .info-panel {
                padding: 22px;
            }
            .info-panel h2 {
                font-size: 19px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 21px;
            }
            .data-card-stat .stat-value {
                font-size: 22px;
            }
            .data-card-stat .stat-label {
                font-size: 12.5px;
            }
            .section-block .section-heading h2 {
                font-size: 19px;
            }
            .table-custom {
                display: block;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }
            .table-custom thead th,
            .table-custom tbody td {
                white-space: nowrap;
                padding: 8px 6px;
                font-size: 11.5px;
            }
            .faq-item .faq-question {
                font-size: 14.5px;
                padding: 14px 16px;
            }
            .faq-item .faq-answer {
                font-size: 13.5px;
                padding: 0 16px 14px;
            }
        }

/* roulang page: category1 */
:root {
            --blue-primary: #1E6FD9;
            --blue-primary-dark: #1758B0;
            --blue-light: #2F9BFF;
            --blue-pale: #E8F1FF;
            --blue-gray: #F5F7FB;
            --card-white: #FFFFFF;
            --border-color: #E3EAF5;
            --text-main: #1A2B3E;
            --text-secondary: #5A6B80;
            --text-muted: #8A94A6;
            --green-status: #16A34A;
            --orange-status: #F59E0B;
            --footer-dark: #0F1E3C;
            --shadow-card: 0 8px 24px rgba(15, 30, 60, 0.06);
            --shadow-card-hover: 0 16px 36px rgba(15, 30, 60, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 20px;
            --transition-base: all 0.25s ease;
            --font-family-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --section-padding: 80px 0;
            --container-max: 1200px;
        }
        :root {
            --section-padding: 60px 0;
        }
        :root {
            --section-padding: 48px 0;
        }
        :root {
            --blue-primary: #1E6FD9;
            --blue-primary-dark: #1758B0;
            --blue-light: #2F9BFF;
            --blue-pale: #E8F1FF;
            --blue-gray: #F5F7FB;
            --card-white: #FFFFFF;
            --border-color: #E3EAF5;
            --text-main: #1A2B3E;
            --text-secondary: #5A6B80;
            --text-muted: #8A94A6;
            --green-status: #16A34A;
            --orange-status: #F59E0B;
            --footer-dark: #0F1E3C;
            --shadow-card: 0 8px 24px rgba(15, 30, 60, 0.06);
            --shadow-card-hover: 0 16px 36px rgba(15, 30, 60, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 20px;
            --transition-base: all 0.25s ease;
            --font-family-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --section-padding: 80px 0;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family-base);
            background-color: var(--blue-gray);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15.5px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            text-decoration: none;
            color: var(--blue-primary);
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--blue-primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus,
        a:focus,
        input:focus,
        select:focus,
        textarea:focus {
            outline: 2px solid var(--blue-light);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }
        .top-info-bar .domain-text {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .top-info-bar .top-actions a {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 6px;
            transition: var(--transition-base);
        }
        .top-info-bar .top-actions a:hover {
            color: var(--blue-primary);
            background: rgba(30, 111, 217, 0.08);
        }
        .top-info-bar .top-actions a.btn-join-top {
            background: var(--blue-primary);
            color: #fff;
            padding: 4px 16px;
            border-radius: 20px;
            font-weight: 600;
        }
        .top-info-bar .top-actions a.btn-join-top:hover {
            background: var(--blue-primary-dark);
            color: #fff;
            box-shadow: 0 4px 12px rgba(30, 111, 217, 0.3);
        }
        /* ========== 主导航 ========== */
        .main-header {
            background: var(--card-white);
            box-shadow: 0 2px 12px rgba(15, 30, 60, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
        }
        .main-header .navbar {
            padding: 14px 0;
            background: transparent;
        }
        .main-header .navbar-brand {
            font-weight: 800;
            font-size: 24px;
            color: var(--blue-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
        }
        .main-header .navbar-brand .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--blue-primary);
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 900;
            letter-spacing: 0;
        }
        .main-header .navbar-brand:hover {
            color: var(--blue-primary-dark);
        }
        .main-header .navbar-nav {
            gap: 4px;
        }
        .main-header .navbar-nav .nav-link {
            color: var(--text-main);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: 8px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .main-header .navbar-nav .nav-link:hover {
            color: var(--blue-primary);
            background: var(--blue-pale);
        }
        .main-header .navbar-nav .nav-link.active {
            color: var(--blue-primary);
            background: var(--blue-pale);
            font-weight: 600;
        }
        .search-box-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--blue-gray);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 6px 14px;
            min-width: 200px;
        }
        .search-box-nav input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }
        .search-box-nav input::placeholder {
            color: var(--text-muted);
        }
        .search-box-nav .search-icon {
            color: var(--text-muted);
            font-size: 14px;
        }
        .btn-primary-custom {
            background: var(--blue-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary-custom:hover {
            background: var(--blue-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(30, 111, 217, 0.3);
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--blue-primary);
            border: 1.5px solid var(--blue-primary);
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-outline-custom:hover {
            background: var(--blue-pale);
            color: var(--blue-primary-dark);
            border-color: var(--blue-primary-dark);
            transform: translateY(-2px);
        }
        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            background: var(--card-white);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
        }
        .breadcrumb-nav {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .breadcrumb-nav a:hover {
            color: var(--blue-primary);
        }
        .breadcrumb-nav .separator {
            color: var(--text-muted);
        }
        .breadcrumb-nav .current {
            color: var(--text-main);
            font-weight: 600;
        }
        /* ========== 分类页 Hero ========== */
        .category-hero {
            background: linear-gradient(135deg, #E8F1FF 0%, #F5F7FB 100%);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border-color);
        }
        .category-hero h1 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .category-hero h1 .highlight {
            color: var(--blue-primary);
        }
        .category-hero .hero-sub {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 0;
        }
        .category-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 20px;
        }
        .category-hero .meta-chip {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .category-hero .meta-chip .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            display: inline-block;
            margin-right: 6px;
            background: var(--green-status);
        }
        /* ========== 直播列表区 ========== */
        .live-list-section {
            padding: 48px 0;
        }
        .live-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 24px;
        }
        .live-card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .live-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .live-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .live-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }
        .live-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .live-card .card-img-wrap .status-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--green-status);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .live-card .card-img-wrap .status-badge.live {
            background: var(--green-status);
        }
        .live-card .card-img-wrap .status-badge.upcoming {
            background: var(--orange-status);
        }
        .live-card .card-img-wrap .status-badge.replay {
            background: var(--text-muted);
        }
        .live-card .card-body-content {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .live-card .card-body-content .match-info {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .live-card .card-body-content .match-info .league {
            font-weight: 600;
            color: var(--blue-primary);
        }
        .live-card .card-body-content .match-info .time {
            color: var(--text-muted);
        }
        .live-card .card-body-content .match-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .live-card .card-body-content .match-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .live-card .card-body-content .card-actions {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .live-card .card-body-content .btn-watch {
            background: var(--blue-primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            padding: 8px 18px;
            font-weight: 600;
            font-size: 13.5px;
            transition: var(--transition-base);
            flex: 1;
            text-align: center;
        }
        .live-card .card-body-content .btn-watch:hover {
            background: var(--blue-primary-dark);
            color: #fff;
        }
        .live-card .card-body-content .btn-detail {
            background: transparent;
            color: var(--blue-primary);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 8px 14px;
            font-weight: 500;
            font-size: 13px;
            transition: var(--transition-base);
        }
        .live-card .card-body-content .btn-detail:hover {
            background: var(--blue-pale);
        }
        .view-more-row {
            text-align: center;
            margin-top: 32px;
        }
        .btn-view-more {
            background: transparent;
            color: var(--blue-primary);
            border: 1.5px solid var(--blue-primary);
            border-radius: 10px;
            padding: 12px 32px;
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-view-more:hover {
            background: var(--blue-pale);
            color: var(--blue-primary-dark);
            border-color: var(--blue-primary-dark);
            transform: translateY(-2px);
        }
        /* ========== 热门赛事榜单 ========== */
        .hot-matches-section {
            padding: 48px 0;
            background: var(--card-white);
            border-top: 1px solid var(--border-color);
        }
        .hot-match-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 24px;
        }
        .hot-match-item {
            background: var(--blue-gray);
            border-radius: 12px;
            padding: 16px;
            text-align: center;
            transition: var(--transition-base);
            border: 1px solid var(--border-color);
        }
        .hot-match-item:hover {
            background: var(--blue-pale);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }
        .hot-match-item .rank {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 6px;
        }
        .hot-match-item .teams {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .hot-match-item .time {
            font-size: 13px;
            color: var(--text-secondary);
        }
        /* ========== 订阅提醒区 ========== */
        .subscribe-section {
            padding: 48px 0;
        }
        .subscribe-card {
            background: linear-gradient(135deg, #1E6FD9 0%, #2F9BFF 100%);
            border-radius: 20px;
            padding: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }
        .subscribe-card .subscribe-text {
            flex: 1;
            min-width: 280px;
        }
        .subscribe-card .subscribe-text h3 {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .subscribe-card .subscribe-text p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 15px;
            margin-bottom: 0;
        }
        .subscribe-card .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            min-width: 280px;
        }
        .subscribe-card .subscribe-form input {
            flex: 1;
            min-width: 200px;
            background: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 10px;
            padding: 12px 18px;
            font-size: 14px;
            color: var(--text-main);
            outline: none;
        }
        .subscribe-card .subscribe-form input:focus {
            border-color: #fff;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
            outline: none;
        }
        .subscribe-card .subscribe-form .btn-sub {
            background: var(--footer-dark);
            color: #fff;
            border: none;
            border-radius: 10px;
            padding: 12px 24px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .subscribe-card .subscribe-form .btn-sub:hover {
            background: #1A2B3E;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(15, 30, 60, 0.4);
        }
        /* ========== 会员提示区 ========== */
        .membership-hint-section {
            padding: 48px 0;
            background: var(--card-white);
            border-top: 1px solid var(--border-color);
        }
        .membership-hint-card {
            background: var(--blue-gray);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        .membership-hint-card .hint-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .membership-hint-card .hint-text p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        .membership-hint-card .btn-member {
            background: var(--blue-primary);
            color: #fff;
            border: none;
            border-radius: 10px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .membership-hint-card .btn-member:hover {
            background: var(--blue-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(30, 111, 217, 0.3);
        }
        /* ========== FAQ 区 ========== */
        .faq-section {
            padding: 48px 0;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 24px;
        }
        .faq-item {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-main);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            gap: 12px;
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--blue-primary);
            transition: var(--transition-base);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 20px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        /* ========== 底部 CTA 区 ========== */
        .category-cta-section {
            padding: 48px 0;
            background: var(--card-white);
            border-top: 1px solid var(--border-color);
        }
        .category-cta-card {
            background: var(--footer-dark);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
        }
        .category-cta-card h3 {
            color: #fff;
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .category-cta-card p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15.5px;
            max-width: 600px;
            margin: 0 auto 24px;
        }
        .category-cta-card .btn-cta-light {
            background: #fff;
            color: var(--footer-dark);
            border: none;
            border-radius: 10px;
            padding: 14px 32px;
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition-base);
            display: inline-block;
        }
        .category-cta-card .btn-cta-light:hover {
            background: var(--blue-pale);
            color: var(--blue-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }
        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--footer-dark);
            color: #fff;
            padding: 56px 0 24px;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            transition: var(--transition-base);
        }
        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }
        .site-footer .footer-desc {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
        }
        .site-footer .btn-back-top {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 8px;
            padding: 8px 16px;
            font-size: 13px;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .site-footer .btn-back-top:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
        }
        /* ========== 响应式 ========== */
        @media (max-width: 992px) {
            .main-header .navbar-nav {
                padding: 16px 0;
            }
            .main-header .navbar-nav .nav-link {
                padding: 10px 16px;
            }
            .search-box-nav {
                min-width: 100%;
                margin-bottom: 12px;
            }
            .main-header .d-flex.align-items-center.gap-2 {
                flex-wrap: wrap;
                width: 100%;
            }
            .main-header .btn-primary-custom {
                flex: 1;
                text-align: center;
            }
            .live-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hot-match-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-hero h1 {
                font-size: 26px;
            }
        }
        @media (max-width: 768px) {
            .live-card-grid {
                grid-template-columns: 1fr;
            }
            .hot-match-list {
                grid-template-columns: 1fr;
            }
            .subscribe-card {
                padding: 28px 20px;
                flex-direction: column;
                align-items: stretch;
            }
            .subscribe-card .subscribe-form {
                flex-direction: column;
            }
            .subscribe-card .subscribe-form input {
                min-width: 100%;
            }
            .subscribe-card .subscribe-form .btn-sub {
                width: 100%;
            }
            .membership-hint-card {
                flex-direction: column;
                text-align: center;
                padding: 24px 20px;
            }
            .category-cta-card {
                padding: 28px 20px;
            }
            .category-hero {
                padding: 32px 0 28px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .category-hero .hero-sub {
                font-size: 15px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .live-card .card-body-content .match-title {
                font-size: 15px;
            }
            .category-hero .hero-meta {
                gap: 8px;
            }
            .category-hero .meta-chip {
                font-size: 12px;
                padding: 4px 12px;
            }
        }

/* roulang page: category3 */
:root {
            --blue-primary: #1E6FD9;
            --blue-primary-dark: #1758B0;
            --blue-light: #2F9BFF;
            --blue-pale: #E8F1FF;
            --blue-gray: #F5F7FB;
            --card-white: #FFFFFF;
            --border-color: #E3EAF5;
            --text-main: #1A2B3E;
            --text-secondary: #5A6B80;
            --text-muted: #8A94A6;
            --green-status: #16A34A;
            --orange-status: #F59E0B;
            --footer-dark: #0F1E3C;
            --shadow-card: 0 8px 24px rgba(15, 30, 60, 0.06);
            --shadow-card-hover: 0 16px 36px rgba(15, 30, 60, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 20px;
            --transition-base: all 0.25s ease;
            --font-family-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --section-padding: 80px 0;
            --container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family-base);
            background-color: var(--blue-gray);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15.5px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        button:focus,
        a:focus,
        input:focus,
        select:focus,
        textarea:focus {
            outline: 2px solid var(--blue-light);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 顶部信息条 ========== */
        .top-info-bar {
            background: var(--blue-pale);
            padding: 6px 0;
            font-size: 12px;
            border-bottom: 1px solid var(--border-color);
        }

        .top-info-bar .domain-text {
            color: var(--text-secondary);
            font-weight: 500;
        }

        .top-info-bar .top-actions a {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 6px;
            transition: var(--transition-base);
        }

        .top-info-bar .top-actions a:hover {
            color: var(--blue-primary);
            background: rgba(30, 111, 217, 0.08);
        }

        .top-info-bar .top-actions a.btn-join-top {
            background: var(--blue-primary);
            color: #fff;
            padding: 4px 16px;
            border-radius: 20px;
            font-weight: 600;
        }

        .top-info-bar .top-actions a.btn-join-top:hover {
            background: var(--blue-primary-dark);
            color: #fff;
            box-shadow: 0 4px 12px rgba(30, 111, 217, 0.3);
        }

        /* ========== 主导航 ========== */
        .main-header {
            background: var(--card-white);
            box-shadow: 0 2px 12px rgba(15, 30, 60, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
        }

        .main-header .navbar {
            padding: 14px 0;
            background: transparent;
        }

        .main-header .navbar-brand {
            font-weight: 800;
            font-size: 24px;
            color: var(--blue-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
        }

        .main-header .navbar-brand .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--blue-primary);
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 900;
            letter-spacing: 0;
        }

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

        .main-header .navbar-nav {
            gap: 4px;
        }

        .main-header .navbar-nav .nav-link {
            color: var(--text-main);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: 8px;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .main-header .navbar-nav .nav-link:hover {
            color: var(--blue-primary);
            background: var(--blue-pale);
        }

        .main-header .navbar-nav .nav-link.active {
            color: var(--blue-primary);
            background: var(--blue-pale);
            font-weight: 600;
        }

        .search-box-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--blue-gray);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 6px 14px;
            min-width: 200px;
        }

        .search-box-nav input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }

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

        .search-box-nav .search-icon {
            color: var(--text-muted);
            font-size: 14px;
        }

        .btn-primary-custom {
            background: var(--blue-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-primary-custom:hover {
            background: var(--blue-primary-dark);
            color: #fff;
            box-shadow: 0 6px 18px rgba(30, 111, 217, 0.35);
            transform: translateY(-2px);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--blue-primary);
            border: 1.5px solid var(--blue-primary);
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-outline-custom:hover {
            background: var(--blue-pale);
            color: var(--blue-primary-dark);
            border-color: var(--blue-primary-dark);
            transform: translateY(-2px);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            background: var(--card-white);
            border-bottom: 1px solid var(--border-color);
            padding: 10px 0;
            font-size: 13px;
            color: var(--text-muted);
        }

        .breadcrumb-bar a {
            color: var(--text-secondary);
        }

        .breadcrumb-bar a:hover {
            color: var(--blue-primary);
        }

        .breadcrumb-bar .separator {
            margin: 0 8px;
            color: var(--text-muted);
        }

        .breadcrumb-bar .current {
            color: var(--blue-primary);
            font-weight: 500;
        }

        /* ========== 分类Hero区域 ========== */
        .category-hero {
            background: var(--card-white);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border-color);
        }

        .category-hero .hero-badge {
            display: inline-block;
            background: var(--blue-pale);
            color: var(--blue-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-tag);
            margin-bottom: 16px;
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .category-hero .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 0;
            line-height: 1.9;
        }

        /* ========== 通用section ========== */
        .content-section {
            padding: 56px 0;
        }

        .content-section.alt-bg {
            background: var(--card-white);
        }

        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.8;
        }

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

        /* ========== 头条文章大卡片 ========== */
        .featured-article-card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .featured-article-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .featured-article-card .article-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

        .featured-article-card .article-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }

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

        .featured-article-card .article-badge-overlay {
            position: absolute;
            top: 16px;
            left: 16px;
            display: flex;
            gap: 8px;
        }

        .featured-article-card .article-body {
            padding: 28px 30px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-article-card .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .featured-article-card .article-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.45;
        }

        .featured-article-card .article-excerpt {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 18px;
            flex: 1;
        }

        .featured-article-card .article-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .featured-article-card .article-author {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .featured-article-card .article-author .author-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--blue-pale);
            color: var(--blue-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }

        /* ========== 专栏文章列表卡片 ========== */
        .commentary-list-card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .commentary-list-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .commentary-list-card .list-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }

        .commentary-list-card .list-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }

        .commentary-list-card:hover .list-card-img img {
            transform: scale(1.04);
        }

        .commentary-list-card .list-card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .commentary-list-card .list-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }

        .tag-badge {
            display: inline-block;
            background: var(--blue-pale);
            color: var(--blue-primary);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            white-space: nowrap;
        }

        .tag-badge.tag-orange {
            background: #FEF3C7;
            color: #B45309;
        }

        .tag-badge.tag-green {
            background: #DCFCE7;
            color: #166534;
        }

        .tag-badge.tag-gray {
            background: #F1F5F9;
            color: #475569;
        }

        .commentary-list-card .list-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
            transition: var(--transition-base);
        }

        .commentary-list-card:hover .list-card-title {
            color: var(--blue-primary);
        }

        .commentary-list-card .list-card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .commentary-list-card .list-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        .commentary-list-card .list-card-link {
            font-weight: 600;
            color: var(--blue-primary);
            font-size: 14px;
        }

        .commentary-list-card .list-card-link:hover {
            color: var(--blue-primary-dark);
        }

        /* ========== 分析师卡片 ========== */
        .analyst-card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: 0 4px 12px rgba(15, 30, 60, 0.04);
            transition: var(--transition-base);
            text-align: center;
            height: 100%;
        }

        .analyst-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .analyst-card .analyst-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--blue-pale);
            color: var(--blue-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            font-weight: 700;
            margin: 0 auto 14px;
            border: 3px solid var(--blue-pale);
        }

        .analyst-card .analyst-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .analyst-card .analyst-title {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .analyst-card .analyst-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== 战术解析专题 ========== */
        .tactical-card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .tactical-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .tactical-card .tactical-img {
            aspect-ratio: 21 / 9;
            overflow: hidden;
        }

        .tactical-card .tactical-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }

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

        .tactical-card .tactical-body {
            padding: 20px 22px;
            flex: 1;
        }

        .tactical-card .tactical-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .tactical-card .tactical-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== 订阅提醒CTA ========== */
        .subscribe-cta {
            background: var(--blue-primary);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .subscribe-cta .cta-text {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-cta .cta-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .subscribe-cta .cta-desc {
            font-size: 14.5px;
            opacity: 0.9;
            line-height: 1.8;
        }

        .subscribe-cta .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }

        .subscribe-cta .cta-input {
            background: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 18px;
            font-size: 14px;
            min-width: 240px;
            color: var(--text-main);
        }

        .subscribe-cta .cta-input::placeholder {
            color: var(--text-muted);
        }

        .btn-white-custom {
            background: #fff;
            color: var(--blue-primary);
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-weight: 700;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-white-custom:hover {
            background: var(--blue-pale);
            color: var(--blue-primary-dark);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
            transform: translateY(-2px);
        }

        /* ========== FAQ ========== */
        .faq-section-wrap {
            background: var(--card-white);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .accordion-faq .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 12px;
            background: var(--card-white);
            overflow: hidden;
            box-shadow: none;
        }

        .accordion-faq .accordion-header .accordion-button {
            background: var(--card-white);
            color: var(--text-main);
            font-weight: 600;
            font-size: 15.5px;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            border-radius: 12px;
        }

        .accordion-faq .accordion-header .accordion-button:not(.collapsed) {
            background: var(--blue-pale);
            color: var(--blue-primary);
            border-radius: 12px 12px 0 0;
        }

        .accordion-faq .accordion-header .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.2);
            border: none;
        }

        .accordion-faq .accordion-body {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.85;
            padding: 18px 22px;
        }

        /* ========== 频道矩阵 ========== */
        .channel-matrix-item {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            padding: 22px 20px;
            text-align: center;
            transition: var(--transition-base);
            display: block;
            height: 100%;
        }

        .channel-matrix-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--blue-light);
        }

        .channel-matrix-item .matrix-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--blue-pale);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin: 0 auto 12px;
        }

        .channel-matrix-item .matrix-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .channel-matrix-item .matrix-desc {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== 查看更多链接 ========== */
        .load-more-link {
            display: flex;
            justify-content: center;
            margin-top: 28px;
        }

        .btn-load-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--blue-primary);
            border: 1.5px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 10px 28px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
        }

        .btn-load-more:hover {
            background: var(--blue-pale);
            border-color: var(--blue-primary-dark);
            color: var(--blue-primary-dark);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--footer-dark);
            color: #C9D4E5;
            padding: 56px 0 0;
            margin-top: 56px;
        }

        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.85;
            color: #A8B8D0;
            max-width: 320px;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }

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

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

        .site-footer ul li a {
            color: #A8B8D0;
            font-size: 14px;
            transition: var(--transition-base);
        }

        .site-footer ul li a:hover {
            color: var(--blue-light);
            padding-left: 4px;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 40px;
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #A8B8D0;
        }

        .btn-back-top {
            background: rgba(255, 255, 255, 0.08);
            color: #C9D4E5;
            border: none;
            border-radius: 8px;
            padding: 8px 16px;
            font-size: 13px;
            transition: var(--transition-base);
        }

        .btn-back-top:hover {
            background: rgba(255, 255, 255, 0.16);
            color: #fff;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1200px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .search-box-nav {
                min-width: 160px;
            }
        }

        @media (max-width: 991.98px) {
            .main-header .navbar {
                padding: 10px 0;
            }
            .navbar-nav {
                padding: 16px 0;
            }
            .navbar-nav .nav-link {
                padding: 10px 12px;
            }
            .search-box-nav {
                min-width: 100%;
                margin-bottom: 10px;
            }
            .main-header .d-flex.align-items-center {
                flex-wrap: wrap;
                width: 100%;
            }
            .btn-primary-custom {
                flex: 1;
                text-align: center;
            }
            .top-info-bar .top-actions a {
                padding: 4px 8px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .featured-article-card .article-title {
                font-size: 20px;
            }
            .subscribe-cta {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-cta .cta-form {
                width: 100%;
            }
            .subscribe-cta .cta-input {
                flex: 1;
                min-width: auto;
            }
            .content-section {
                padding: 40px 0;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .top-info-bar {
                font-size: 11px;
            }
            .top-info-bar .top-actions a.btn-join-top {
                display: none;
            }
            .category-hero {
                padding: 32px 0 28px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .category-hero .hero-desc {
                font-size: 14.5px;
            }
            .featured-article-card .article-body {
                padding: 20px;
            }
            .featured-article-card .article-title {
                font-size: 18px;
            }
            .section-title {
                font-size: 19px;
            }
            .subscribe-cta {
                padding: 24px 20px;
            }
            .subscribe-cta .cta-input {
                min-width: 100%;
            }
            .btn-white-custom {
                width: 100%;
            }
            .accordion-faq .accordion-header .accordion-button {
                font-size: 14.5px;
                padding: 14px 16px;
            }
            .commentary-list-card .list-card-body {
                padding: 16px;
            }
            .analyst-card {
                padding: 18px;
            }
            .site-footer {
                padding: 40px 0 0;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-back-top {
                width: 100%;
            }
        }

        @media (max-width: 519.98px) {
            body {
                font-size: 14.5px;
            }
            .category-hero h1 {
                font-size: 20px;
            }
            .featured-article-card .article-title {
                font-size: 17px;
            }
            .section-title {
                font-size: 18px;
            }
            .top-info-bar {
                display: none;
            }
            .main-header .navbar-brand {
                font-size: 20px;
            }
            .main-header .navbar-brand .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 17px;
                border-radius: 10px;
            }
            .content-section {
                padding: 28px 0;
            }
            .subscribe-cta .cta-title {
                font-size: 18px;
            }
        }

/* roulang page: category4 */
:root {
            --blue-primary: #1E6FD9;
            --blue-primary-dark: #1758B0;
            --blue-light: #2F9BFF;
            --blue-pale: #E8F1FF;
            --blue-gray: #F5F7FB;
            --card-white: #FFFFFF;
            --border-color: #E3EAF5;
            --text-main: #1A2B3E;
            --text-secondary: #5A6B80;
            --text-muted: #8A94A6;
            --green-status: #16A34A;
            --orange-status: #F59E0B;
            --footer-dark: #0F1E3C;
            --shadow-card: 0 8px 24px rgba(15, 30, 60, 0.06);
            --shadow-card-hover: 0 16px 36px rgba(15, 30, 60, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 20px;
            --transition-base: all 0.25s ease;
            --font-family-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --section-padding: 80px 0;
            --container-max: 1200px;
        }
        :root {
            --section-padding: 60px 0;
        }
        :root {
            --section-padding: 48px 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family-base);
            background-color: var(--blue-gray);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15.5px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            text-decoration: none;
            color: var(--blue-primary);
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--blue-primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus,
        a:focus,
        input:focus,
        select:focus,
        textarea:focus {
            outline: 2px solid var(--blue-light);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }
        .top-info-bar {
            background: #F0F5FC;
            padding: 8px 0;
            font-size: 12px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-secondary);
        }
        .top-info-bar .domain-text {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .top-info-bar .top-actions a {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 6px;
            transition: var(--transition-base);
        }
        .top-info-bar .top-actions a:hover {
            color: var(--blue-primary);
            background: rgba(30, 111, 217, 0.08);
        }
        .top-info-bar .top-actions a.btn-join-top {
            background: var(--blue-primary);
            color: #fff;
            padding: 4px 16px;
            border-radius: 20px;
            font-weight: 600;
        }
        .top-info-bar .top-actions a.btn-join-top:hover {
            background: var(--blue-primary-dark);
            color: #fff;
            box-shadow: 0 4px 12px rgba(30, 111, 217, 0.3);
        }
        .main-header {
            background: var(--card-white);
            box-shadow: 0 2px 12px rgba(15, 30, 60, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
        }
        .main-header .navbar {
            padding: 14px 0;
            background: transparent;
        }
        .main-header .navbar-brand {
            font-weight: 800;
            font-size: 24px;
            color: var(--blue-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
        }
        .main-header .navbar-brand .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--blue-primary);
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 900;
            letter-spacing: 0;
        }
        .main-header .navbar-brand:hover {
            color: var(--blue-primary-dark);
        }
        .main-header .navbar-nav {
            gap: 4px;
        }
        .main-header .navbar-nav .nav-link {
            color: var(--text-main);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: 8px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .main-header .navbar-nav .nav-link:hover {
            color: var(--blue-primary);
            background: var(--blue-pale);
        }
        .main-header .navbar-nav .nav-link.active {
            color: var(--blue-primary);
            background: var(--blue-pale);
            font-weight: 600;
        }
        .search-box-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--blue-gray);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 6px 14px;
            min-width: 200px;
        }
        .search-box-nav input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }
        .search-box-nav input::placeholder {
            color: var(--text-muted);
        }
        .search-box-nav .search-icon {
            color: var(--text-muted);
            font-size: 14px;
        }
        .btn-primary-custom {
            background: var(--blue-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary-custom:hover {
            background: var(--blue-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(30, 111, 217, 0.3);
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--blue-primary);
            border: 1.5px solid var(--blue-primary);
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-outline-custom:hover {
            background: var(--blue-pale);
            color: var(--blue-primary-dark);
            border-color: var(--blue-primary-dark);
            transform: translateY(-2px);
        }
        .navbar-toggler {
            border: 1px solid var(--border-color);
            padding: 6px 10px;
            border-radius: 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--blue-light);
            outline-offset: 2px;
        }
        .page-header-section {
            padding: 56px 0 40px;
            background: var(--card-white);
            border-bottom: 1px solid var(--border-color);
        }
        .page-header-section h1 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .page-header-section .page-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 800px;
            line-height: 1.8;
        }
        .page-header-section .breadcrumb-wrapper {
            margin-bottom: 20px;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .breadcrumb-custom a {
            color: var(--text-secondary);
        }
        .breadcrumb-custom a:hover {
            color: var(--blue-primary);
        }
        .breadcrumb-custom .separator {
            color: var(--text-muted);
        }
        .breadcrumb-custom .current {
            color: var(--blue-primary);
            font-weight: 500;
        }
        .announcement-section {
            padding: 48px 0;
        }
        .announcement-card {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .announcement-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--blue-pale);
        }
        .announcement-card .card-image-wrapper {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .announcement-card .card-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .announcement-card:hover .card-image-wrapper img {
            transform: scale(1.05);
        }
        .announcement-card .card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .announcement-card .card-category {
            display: inline-block;
            background: var(--blue-pale);
            color: var(--blue-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .announcement-card .card-category.cat-service {
            background: #E8F8EB;
            color: var(--green-status);
        }
        .announcement-card .card-category.cat-member {
            background: #FFF4E5;
            color: var(--orange-status);
        }
        .announcement-card .card-category.cat-event {
            background: #F0E8FF;
            color: #7C3AED;
        }
        .announcement-card .card-category.cat-version {
            background: #E8F1FF;
            color: var(--blue-light);
        }
        .announcement-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .announcement-card .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 12px;
            flex: 1;
        }
        .announcement-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .announcement-card .card-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .announcement-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--blue-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 10px;
        }
        .announcement-card .card-link:hover {
            color: var(--blue-primary-dark);
            gap: 8px;
        }
        .section-heading {
            margin-bottom: 28px;
        }
        .section-heading h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .section-heading p {
            font-size: 14.5px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        .service-update-banner {
            background: linear-gradient(135deg, #E8F1FF 0%, #F5F7FB 100%);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .service-update-banner .update-icon {
            width: 56px;
            height: 56px;
            background: var(--blue-primary);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: #fff;
            flex-shrink: 0;
        }
        .service-update-banner .update-info {
            flex: 1;
            min-width: 200px;
        }
        .service-update-banner .update-info h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .service-update-banner .update-info p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        .service-update-banner .update-badge {
            background: var(--green-status);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            white-space: nowrap;
        }
        .timeline-wrapper {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            box-shadow: var(--shadow-card);
        }
        .timeline-item {
            position: relative;
            padding-left: 30px;
            padding-bottom: 28px;
            border-left: 2px solid var(--blue-pale);
        }
        .timeline-item:last-child {
            padding-bottom: 0;
            border-left-color: transparent;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -7px;
            top: 4px;
            width: 12px;
            height: 12px;
            background: var(--blue-primary);
            border-radius: 50%;
            border: 2px solid #fff;
            box-shadow: 0 0 0 3px var(--blue-pale);
        }
        .timeline-item .timeline-date {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 4px;
        }
        .timeline-item .timeline-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .timeline-item .timeline-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .subscription-box {
            background: var(--footer-dark);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .subscription-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: rgba(47, 155, 255, 0.15);
            border-radius: 50%;
        }
        .subscription-box::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -30px;
            width: 220px;
            height: 220px;
            background: rgba(30, 111, 217, 0.1);
            border-radius: 50%;
        }
        .subscription-box h2 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }
        .subscription-box p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }
        .subscription-box .sub-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .subscription-box .sub-form input {
            flex: 1;
            min-width: 200px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-btn);
            padding: 12px 18px;
            color: #fff;
            font-size: 14px;
        }
        .subscription-box .sub-form input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .subscription-box .sub-form input:focus {
            outline: none;
            border-color: var(--blue-light);
            box-shadow: 0 0 0 3px rgba(47, 155, 255, 0.2);
        }
        .subscription-box .sub-form button {
            background: var(--blue-light);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 14.5px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .subscription-box .sub-form button:hover {
            background: #3DA8FF;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(47, 155, 255, 0.35);
        }
        .faq-section {
            padding: 48px 0;
        }
        .faq-item {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--blue-pale);
            box-shadow: var(--shadow-card);
        }
        .faq-item .accordion-button {
            background: var(--card-white);
            color: var(--text-main);
            font-weight: 600;
            font-size: 15px;
            padding: 18px 22px;
            border: none;
            border-radius: 12px;
            transition: var(--transition-base);
        }
        .faq-item .accordion-button:not(.collapsed) {
            background: var(--blue-pale);
            color: var(--blue-primary);
            box-shadow: none;
        }
        .faq-item .accordion-button:focus {
            box-shadow: none;
            outline: none;
        }
        .faq-item .accordion-body {
            padding: 18px 22px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid var(--border-color);
        }
        .pagination-wrapper {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-top: 28px;
        }
        .pagination-wrapper .page-btn {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            background: var(--card-white);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }
        .pagination-wrapper .page-btn:hover {
            border-color: var(--blue-primary);
            color: var(--blue-primary);
            background: var(--blue-pale);
        }
        .pagination-wrapper .page-btn.active {
            background: var(--blue-primary);
            color: #fff;
            border-color: var(--blue-primary);
        }
        .pagination-wrapper .page-btn.disabled {
            opacity: 0.5;
            pointer-events: none;
        }
        .site-footer {
            background: var(--footer-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
            margin-top: 40px;
        }
        .site-footer .footer-brand {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            max-width: 320px;
        }
        .site-footer h5 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: var(--transition-base);
        }
        .site-footer ul li a:hover {
            color: var(--blue-light);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }
        .btn-back-top {
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            padding: 8px 18px;
            font-size: 13px;
            transition: var(--transition-base);
        }
        .btn-back-top:hover {
            background: var(--blue-primary);
            color: #fff;
            border-color: var(--blue-primary);
        }
        @media (max-width: 991.98px) {
            .search-box-nav {
                min-width: 150px;
            }
            .main-header .navbar-nav {
                padding: 12px 0;
            }
            .main-header .navbar-nav .nav-link {
                padding: 10px 14px;
            }
            .d-flex.gap-2.align-items-center {
                flex-wrap: wrap;
            }
            .page-header-section h1 {
                font-size: 26px;
            }
        }
        @media (max-width: 767.98px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .page-header-section {
                padding: 36px 0 28px;
            }
            .page-header-section h1 {
                font-size: 22px;
            }
            .page-header-section .page-subtitle {
                font-size: 14px;
            }
            .announcement-section {
                padding: 32px 0;
            }
            .announcement-card .card-body {
                padding: 16px 18px;
            }
            .service-update-banner {
                padding: 20px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
            .timeline-wrapper {
                padding: 20px 18px;
            }
            .subscription-box {
                padding: 28px 20px;
            }
            .subscription-box .sub-form {
                flex-direction: column;
            }
            .subscription-box .sub-form button {
                width: 100%;
            }
            .section-heading h2 {
                font-size: 20px;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 519.98px) {
            .top-info-bar .top-actions {
                display: none;
            }
            .top-info-bar .domain-text {
                font-size: 11px;
            }
            .main-header .navbar-brand {
                font-size: 20px;
            }
            .main-header .navbar-brand .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 17px;
                border-radius: 10px;
            }
            .search-box-nav {
                min-width: 120px;
                padding: 4px 10px;
            }
            .search-box-nav input {
                font-size: 12px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                padding: 8px 16px;
                font-size: 13px;
            }
            .announcement-card .card-title {
                font-size: 15px;
            }
            .announcement-card .card-meta {
                flex-wrap: wrap;
                gap: 8px;
            }
            .pagination-wrapper .page-btn {
                width: 34px;
                height: 34px;
                font-size: 13px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}