/* roulang page: index */
:root {
            --primary: #E63946;
            --primary-dark: #C1121F;
            --secondary: #1D3557;
            --accent: #F4A261;
            --accent-light: rgba(244, 162, 97, 0.1);
            --bg: #FAFAFA;
            --bg-card: #FFFFFF;
            --bg-light: #F1F5F9;
            --text: #1E293B;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #CBD5E1;
            --border-light: #E2E8F0;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --section-padding: 5rem 0;
            --section-padding-mobile: 3rem 0;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            color: var(--text);
            background: var(--bg);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        a:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button {
            cursor: pointer;
            font-family: var(--font-stack);
        }

        input,
        select,
        textarea {
            font-family: var(--font-stack);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text);
            line-height: 1.3;
            margin-top: 0;
        }

        h1 {
            font-size: 2.5rem;
            font-weight: 700;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 700;
        }
        h4 {
            font-size: 1.25rem;
            font-weight: 600;
        }

        p {
            margin-bottom: 1.2rem;
            color: var(--text);
            line-height: 1.6;
        }

        .text-muted {
            color: var(--text-muted);
        }
        .text-small {
            font-size: 0.875rem;
        }
        .text-xs {
            font-size: 0.75rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        section {
            padding: var(--section-padding);
            position: relative;
        }

        .section-alt {
            background: var(--bg-light);
        }
        .section-dark {
            background: var(--secondary);
            color: #fff;
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark p {
            color: #fff;
        }
        .section-dark .text-muted {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            max-width: 680px;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        .text-center {
            text-align: center;
        }
        .text-left {
            text-align: left;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            background: var(--secondary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
            height: 62px;
            display: flex;
            align-items: center;
        }

        .site-header .top-bar {
            background: transparent;
            padding: 0;
            width: 100%;
        }
        .site-header .top-bar,
        .site-header .top-bar ul {
            background: transparent;
        }
        .site-header .top-bar .menu {
            background: transparent;
        }
        .site-header .top-bar .menu a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition), border-color var(--transition);
            border-bottom: 2px solid transparent;
            white-space: nowrap;
        }
        .site-header .top-bar .menu a:hover {
            color: #fff;
            border-bottom-color: var(--primary);
        }
        .site-header .top-bar .menu .active>a {
            color: #fff;
            border-bottom-color: var(--accent);
            font-weight: 600;
        }
        .site-header .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff !important;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }
        .site-header .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .site-header .logo:hover {
            color: #fff !important;
            opacity: 0.9;
        }
        .site-header .nav-right {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .site-header .notify-bell {
            position: relative;
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.2rem;
            cursor: pointer;
            transition: color var(--transition);
            padding: 0.4rem;
        }
        .site-header .notify-bell:hover {
            color: #fff;
        }
        .site-header .notify-bell .red-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            border: 2px solid var(--secondary);
        }
        .btn-primary-sm {
            background: var(--primary);
            color: #fff !important;
            padding: 0.5rem 1.3rem !important;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: background var(--transition), transform var(--transition);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary-sm:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn-outline-sm {
            background: transparent;
            color: #fff !important;
            padding: 0.5rem 1.3rem !important;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-outline-sm:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .title-bar {
            background: var(--secondary);
            padding: 0.5rem 1rem;
        }
        .title-bar .menu-icon {
            cursor: pointer;
        }
        .title-bar .menu-icon::after {
            background: #fff;
            box-shadow: 0 7px 0 #fff, 0 14px 0 #fff;
        }
        .title-bar .title-bar-title {
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
        }

        @media screen and (max-width: 1024px) {
            .site-header .top-bar .menu a {
                padding: 0.5rem 0.6rem;
                font-size: 0.85rem;
            }
        }
        @media screen and (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: 56px;
            }
            .site-header .top-bar .menu a {
                font-size: 0.9rem;
                padding: 0.7rem 1rem;
            }
            .site-header .nav-right {
                gap: 0.4rem;
            }
            .btn-primary-sm,
            .btn-outline-sm {
                padding: 0.45rem 0.9rem !important;
                font-size: 0.8rem;
            }
        }

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 0;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(29, 53, 87, 0.88) 0%, rgba(29, 53, 87, 0.65) 50%, rgba(29, 53, 87, 0.8) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            max-width: 800px;
            padding: 2rem;
        }
        .hero-content .hero-badge {
            display: inline-block;
            background: rgba(244, 162, 97, 0.2);
            border: 1px solid rgba(244, 162, 97, 0.5);
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.35rem 1rem;
            border-radius: 20px;
            margin-bottom: 1.5rem;
            letter-spacing: 0.03em;
        }
        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .hero-content .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 1.5rem;
            line-height: 1.7;
            max-width: 650px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-countdown {
            display: flex;
            justify-content: center;
            gap: 1.2rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }
        .countdown-item {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 0.9rem 1.3rem;
            min-width: 70px;
            text-align: center;
        }
        .countdown-item .count-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1;
            display: block;
        }
        .countdown-item .count-label {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.3rem;
            letter-spacing: 0.05em;
        }
        .hero-cta-group {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-block;
            background: var(--primary);
            color: #fff !important;
            padding: 0.8rem 2.2rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            letter-spacing: 0.02em;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.45);
            color: #fff !important;
        }
        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: #fff !important;
            padding: 0.8rem 2.2rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition);
            cursor: pointer;
            letter-spacing: 0.02em;
        }
        .btn-secondary:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff !important;
        }
        .hero-data-row {
            display: flex;
            gap: 2rem;
            justify-content: center;
            margin-top: 2.5rem;
            flex-wrap: wrap;
        }
        .hero-data-item {
            text-align: center;
        }
        .hero-data-item .data-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            display: block;
        }
        .hero-data-item .data-desc {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 0.2rem;
        }

        @media screen and (max-width: 768px) {
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content .hero-subtitle {
                font-size: 1rem;
            }
            .countdown-item {
                min-width: 55px;
                padding: 0.7rem 0.9rem;
            }
            .countdown-item .count-num {
                font-size: 1.6rem;
            }
            .hero-data-row {
                gap: 1rem;
            }
            .hero-data-item .data-num {
                font-size: 1.3rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 0.7rem 1.5rem;
                font-size: 0.9rem;
                width: 100%;
                text-align: center;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }
        }
        @media screen and (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-content {
                padding: 1.2rem;
            }
            .hero-section {
                min-height: 90vh;
            }
            .countdown-item {
                min-width: 48px;
                padding: 0.5rem 0.6rem;
            }
            .countdown-item .count-num {
                font-size: 1.3rem;
            }
        }

        /* ========== 卡片组件 ========== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 1.5rem;
            transition: all var(--transition);
            border: 1px solid transparent;
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-light);
        }
        .card .card-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
            line-height: 1.6;
        }

        .card-horizontal {
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 1.8rem;
            transition: all var(--transition);
        }
        .card-horizontal:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .card-horizontal img {
            width: 180px;
            height: 120px;
            object-fit: cover;
            border-radius: var(--radius);
            flex-shrink: 0;
        }
        .card-horizontal .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 0.4rem;
        }
        .card-horizontal .card-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        @media screen and (max-width: 640px) {
            .card-horizontal {
                flex-direction: column;
            }
            .card-horizontal img {
                width: 100%;
                height: 160px;
            }
        }

        /* ========== 按钮系统 ========== */
        .btn {
            display: inline-block;
            padding: 0.7rem 1.8rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
            letter-spacing: 0.02em;
            text-align: center;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff !important;
        }
        .btn-accent:hover {
            background: #e08d3a;
            transform: translateY(-1px);
            color: #fff !important;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary) !important;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff !important;
        }
        .btn-link {
            background: none;
            color: var(--primary);
            padding: 0;
            font-weight: 600;
            border: none;
            cursor: pointer;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .btn-link:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        /* ========== 标签/徽章 ========== */
        .badge {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.7rem;
            border-radius: 14px;
            letter-spacing: 0.03em;
        }
        .badge-primary {
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
        }
        .badge-new {
            background: rgba(230, 57, 70, 0.12);
            color: var(--primary);
            font-weight: 700;
        }

        /* ========== 参数速览 ========== */
        .specs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
        }
        .spec-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .spec-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .spec-item .spec-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1;
        }
        .spec-item .spec-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 0.5rem;
        }

        /* ========== 排行列表 ========== */
        .rank-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .rank-list li {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.8rem 1.2rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            margin-bottom: 0.6rem;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .rank-list li:hover {
            box-shadow: var(--shadow-sm);
            transform: translateX(3px);
        }
        .rank-list .rank-num {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--primary);
            min-width: 36px;
            text-align: center;
        }
        .rank-list .rank-info {
            flex: 1;
        }
        .rank-list .rank-info .rank-title {
            font-weight: 600;
            font-size: 0.95rem;
        }
        .rank-list .rank-info .rank-detail {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .rank-list .rank-metric {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--accent);
            white-space: nowrap;
        }

        /* ========== 奖励预览 ========== */
        .reward-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
        }
        .reward-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }
        .reward-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .reward-card .reward-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
            color: var(--accent);
        }
        .reward-card h3 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }
        .reward-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .reward-card.featured {
            border-color: var(--primary);
            background: #fffbfb;
        }
        .reward-card.featured .reward-icon {
            color: var(--primary);
        }
        .reward-card .reward-ribbon {
            position: absolute;
            top: 12px;
            right: -28px;
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.25rem 2rem;
            transform: rotate(45deg);
            letter-spacing: 0.04em;
        }

        /* ========== 社会认同 ========== */
        .logo-wall {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 2.5rem;
            padding: 2rem 0;
            opacity: 0.7;
        }
        .logo-wall .partner-logo {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-muted);
            letter-spacing: 0.05em;
            filter: grayscale(100%);
            transition: all var(--transition);
            cursor: default;
            white-space: nowrap;
        }
        .logo-wall .partner-logo:hover {
            filter: grayscale(0%);
            color: var(--text);
        }
        .testimonial-slider {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
        }
        .testimonial-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--primary);
            transition: all var(--transition);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow);
        }
        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: var(--primary);
            opacity: 0.4;
            margin-bottom: 0.5rem;
        }
        .testimonial-card blockquote {
            font-style: italic;
            font-size: 0.95rem;
            color: var(--text);
            margin: 0 0 1rem;
            line-height: 1.7;
            border: none;
            padding: 0;
        }
        .testimonial-card .author-row {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .testimonial-card .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 1rem;
        }
        .testimonial-card .author-name {
            font-weight: 600;
            font-size: 0.9rem;
        }
        .testimonial-card .author-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ========== 版本更新 ========== */
        .changelog-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .changelog-list li {
            padding: 1rem 1.5rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            margin-bottom: 0.6rem;
            border: 1px solid var(--border-light);
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            transition: all var(--transition);
        }
        .changelog-list li:hover {
            box-shadow: var(--shadow-sm);
        }
        .changelog-list .cl-version {
            font-weight: 700;
            color: var(--primary);
            font-size: 0.85rem;
            white-space: nowrap;
            min-width: 60px;
        }
        .changelog-list .cl-content {
            flex: 1;
        }
        .changelog-list .cl-content strong {
            display: block;
            font-size: 0.95rem;
            margin-bottom: 0.2rem;
        }
        .changelog-list .cl-content span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========== 新闻中心 ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 1.5rem;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .news-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }
        .news-card .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            padding: 1rem 1.2rem 0;
        }
        .news-card h3 {
            font-size: 1.05rem;
            padding: 0.3rem 1.2rem;
            margin-bottom: 0;
        }
        .news-card .news-summary {
            font-size: 0.9rem;
            color: var(--text-muted);
            padding: 0 1.2rem;
            line-height: 1.5;
        }
        .news-card .news-link {
            display: inline-block;
            padding: 0.6rem 1.2rem 1.2rem;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            margin-bottom: 0.6rem;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition);
            color: var(--text);
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-question .faq-toggle {
            font-size: 1.2rem;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.5rem 1.2rem;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== CTA区域 ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #1a2d45 100%);
            text-align: center;
            padding: 4rem 0;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 1.8rem;
            font-size: 1.05rem;
        }
        .cta-section .btn-primary {
            font-size: 1.1rem;
            padding: 0.9rem 2.8rem;
        }

        /* ========== 表单 ========== */
        .subscribe-form {
            display: flex;
            gap: 0.75rem;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            transition: all var(--transition);
            background: #fff;
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.1);
        }
        .subscribe-form button {
            padding: 0.75rem 1.8rem;
            white-space: nowrap;
        }

        /* ========== 固定底部转化条 ========== */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--primary);
            color: #fff;
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1.5rem;
            padding: 0.9rem 1.5rem;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
            flex-wrap: wrap;
        }
        .sticky-cta-bar .cta-text {
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
        }
        .sticky-cta-bar .btn-sticky {
            background: #fff;
            color: var(--primary) !important;
            padding: 0.55rem 1.8rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .sticky-cta-bar .btn-sticky:hover {
            background: #f0f0f0;
            transform: scale(1.03);
        }
        @media screen and (max-width: 640px) {
            .sticky-cta-bar {
                flex-direction: column;
                gap: 0.5rem;
                text-align: center;
                padding: 0.7rem 1rem;
            }
            .sticky-cta-bar .btn-sticky {
                width: 100%;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f1a2e;
            color: rgba(255, 255, 255, 0.7);
            padding: 3rem 0 1.5rem;
            margin-bottom: 60px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }
        .site-footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer ul li {
            margin-bottom: 0.5rem;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.8;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }

        /* ========== 图文区块 ========== */
        .media-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .media-block.reverse {
            direction: rtl;
        }
        .media-block.reverse .media-text {
            direction: ltr;
        }
        .media-block .media-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .media-block .media-img img {
            width: 100%;
            height: auto;
            display: block;
        }
        .media-block .media-text h3 {
            font-size: 1.5rem;
            margin-bottom: 0.8rem;
        }
        .media-block .media-text p {
            color: var(--text-muted);
            line-height: 1.7;
        }
        @media screen and (max-width: 768px) {
            .media-block {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .media-block.reverse {
                direction: ltr;
            }
        }

        /* ========== 深度内容区 ========== */
        .deep-content {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 2.5rem;
            align-items: start;
        }
        .deep-content .deep-text h3 {
            font-size: 1.4rem;
            margin-bottom: 0.8rem;
        }
        .deep-content .deep-text p {
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 1rem;
        }
        .deep-content .deep-sidebar {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .deep-content .deep-sidebar h4 {
            font-size: 1.1rem;
            margin-bottom: 1rem;
        }
        .deep-content .deep-sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .deep-content .deep-sidebar ul li {
            padding: 0.5rem 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .deep-content .deep-sidebar ul li:last-child {
            border-bottom: none;
        }
        .deep-content .deep-sidebar ul li i {
            color: var(--primary);
            margin-right: 0.5rem;
        }
        @media screen and (max-width: 768px) {
            .deep-content {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 数据指标条 ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 1.5rem;
            text-align: center;
        }
        .stat-block {
            padding: 1.5rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .stat-block:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .stat-block .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1;
        }
        .stat-block .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 0.5rem;
        }

        /* ========== 通用间距 ========== */
        .mb-0 {
            margin-bottom: 0;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .mb-2 {
            margin-bottom: 1rem;
        }
        .mb-3 {
            margin-bottom: 1.5rem;
        }
        .mb-4 {
            margin-bottom: 2rem;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mt-2 {
            margin-top: 1rem;
        }
        .mt-3 {
            margin-top: 1.5rem;
        }
        .mt-4 {
            margin-top: 2rem;
        }

        .divider {
            border: none;
            height: 1px;
            background: var(--border-light);
            margin: 0;
        }
        .divider-accent {
            width: 50px;
            height: 3px;
            background: var(--primary);
            border: none;
            margin: 0.8rem auto 1.5rem;
            border-radius: 2px;
        }

        @media screen and (max-width: 768px) {
            section {
                padding: var(--section-padding-mobile);
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }
        @media screen and (max-width: 520px) {
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            .container {
                padding: 0 1rem;
            }
            .container-wide {
                padding: 0 1rem;
            }
            .card {
                padding: 1.2rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #E63946;
            --primary-dark: #C1121F;
            --secondary: #1D3557;
            --accent: #F4A261;
            --accent-light: rgba(244, 162, 97, 0.1);
            --bg: #FAFAFA;
            --bg-card: #FFFFFF;
            --bg-light: #F1F5F9;
            --text: #1E293B;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #CBD5E1;
            --border-light: #E2E8F0;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --section-padding: 5rem 0;
            --section-padding-mobile: 3rem 0;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            color: var(--text);
            background: var(--bg);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        a:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button {
            cursor: pointer;
            font-family: var(--font-stack);
        }

        input,
        select,
        textarea {
            font-family: var(--font-stack);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            color: var(--text);
            line-height: 1.3;
        }

        h1 {
            font-size: 2.5rem;
            font-weight: 700;
            letter-spacing: -0.02em;
        }

        h2 {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        h3 {
            font-size: 1.5rem;
            font-weight: 700;
        }

        h4 {
            font-size: 1.15rem;
            font-weight: 600;
        }

        p {
            margin-top: 0;
            margin-bottom: 1.2rem;
            line-height: 1.6;
        }

        .text-muted {
            color: var(--text-muted);
        }
        .text-small {
            font-size: 0.875rem;
        }
        .text-xs {
            font-size: 0.75rem;
        }
        .text-center {
            text-align: center;
        }
        .text-left {
            text-align: left;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        section {
            padding: var(--section-padding);
            position: relative;
        }
        .section-alt {
            background: var(--bg-light);
        }
        .section-dark {
            background: var(--secondary);
            color: #fff;
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark h4,
        .section-dark p {
            color: #fff;
        }
        .section-dark .text-muted {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            max-width: 680px;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ========== 导航栏 ========== */
        .site-header {
            background: var(--secondary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
            height: 62px;
            display: flex;
            align-items: center;
        }
        .site-header .top-bar {
            background: transparent;
            padding: 0;
            width: 100%;
        }
        .site-header .top-bar,
        .site-header .top-bar ul {
            background: transparent;
        }
        .site-header .top-bar .menu {
            background: transparent;
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 0.3rem;
            flex-wrap: wrap;
        }
        .site-header .top-bar .menu li {
            list-style: none;
            margin: 0;
        }
        .site-header .top-bar .menu a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition), border-color var(--transition);
            border-bottom: 2px solid transparent;
            white-space: nowrap;
            display: inline-block;
        }
        .site-header .top-bar .menu a:hover {
            color: #fff;
            border-bottom-color: var(--primary);
        }
        .site-header .top-bar .menu .active>a {
            color: #fff;
            border-bottom-color: var(--accent);
            font-weight: 600;
        }
        .site-header .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff !important;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }
        .site-header .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .site-header .logo:hover {
            color: #fff !important;
            opacity: 0.9;
        }
        .site-header .nav-right {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            margin-left: 0.8rem;
        }
        .notify-bell {
            position: relative;
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            cursor: pointer;
            transition: color var(--transition);
        }
        .notify-bell:hover {
            color: #fff;
        }
        .red-dot {
            position: absolute;
            top: -2px;
            right: -3px;
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            display: inline-block;
        }
        .btn-outline-sm {
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition);
            display: inline-block;
            white-space: nowrap;
        }
        .btn-outline-sm:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .btn-primary-sm {
            background: var(--primary);
            color: #fff;
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition);
            display: inline-block;
            white-space: nowrap;
            border: none;
        }
        .btn-primary-sm:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.4rem;
            line-height: 1;
        }

        /* ========== 按钮系统 ========== */
        .btn {
            display: inline-block;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 0.75rem 2rem;
            transition: all var(--transition);
            text-align: center;
            border: none;
            cursor: pointer;
            font-size: 1rem;
            font-family: var(--font-stack);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
        }
        .btn-white:hover {
            background: #f8f8f8;
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .btn-lg {
            padding: 0.9rem 2.5rem;
            font-size: 1.1rem;
            border-radius: var(--radius);
        }

        /* ========== 卡片系统 ========== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 1.5rem;
            transition: all var(--transition);
            border: none;
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .card-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
            display: inline-block;
        }
        .card h3 {
            font-size: 1.2rem;
            margin-bottom: 0.6rem;
        }
        .card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ========== 图文区块 ========== */
        .media-block {
            display: flex;
            align-items: center;
            gap: 3rem;
            flex-wrap: wrap;
        }
        .media-block.reverse {
            flex-direction: row-reverse;
        }
        .media-block .media-img {
            flex: 1 1 400px;
            min-width: 280px;
        }
        .media-block .media-img img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            width: 100%;
            object-fit: cover;
        }
        .media-block .media-body {
            flex: 1 1 400px;
            min-width: 280px;
        }
        .media-block .media-body h2 {
            margin-bottom: 1rem;
        }
        .media-block .media-body p {
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== 统计数字 ========== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 0.4rem;
        }

        /* ========== 流程步骤 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            position: relative;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all var(--transition);
            border-top: 4px solid var(--primary);
        }
        .step-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .step-number {
            display: inline-block;
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-weight: 700;
            font-size: 1.2rem;
            line-height: 44px;
            margin-bottom: 1rem;
        }
        .step-card h4 {
            margin-bottom: 0.5rem;
            font-size: 1.05rem;
        }
        .step-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            margin-bottom: 0.8rem;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1.05rem;
            user-select: none;
            transition: background var(--transition);
            color: var(--text);
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 1rem;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 1.5rem 1.2rem;
        }
        .faq-answer p {
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== CTA条 ========== */
        .cta-strip {
            background: var(--primary);
            color: #fff;
            padding: 2.5rem 0;
            text-align: center;
        }
        .cta-strip h2 {
            color: #fff;
            margin-bottom: 0.5rem;
        }
        .cta-strip p {
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.8);
            padding: 3rem 0 1.5rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 1rem;
            font-size: 1rem;
        }
        .site-footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer ul li {
            margin-bottom: 0.5rem;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom p {
            margin-bottom: 0.3rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ========== 页面Hero ========== */
        .page-hero {
            background: linear-gradient(135deg, rgba(29, 53, 87, 0.92) 0%, rgba(29, 53, 87, 0.78) 40%, rgba(230, 57, 70, 0.55) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            padding: 5rem 0 4rem;
            color: #fff;
            text-align: center;
            position: relative;
        }
        .page-hero h1 {
            color: #fff;
            font-size: 2.8rem;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }
        .page-hero .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 700px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .page-hero .hero-stats-row {
            display: flex;
            justify-content: center;
            gap: 3rem;
            flex-wrap: wrap;
            margin-top: 2.5rem;
        }
        .page-hero .hero-stat-mini {
            text-align: center;
        }
        .page-hero .hero-stat-mini .hs-num {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
        }
        .page-hero .hero-stat-mini .hs-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.3rem;
        }

        /* ========== 数据亮点卡片 ========== */
        .highlight-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow);
            text-align: center;
            transition: all var(--transition);
            height: 100%;
            border-left: 5px solid var(--primary);
        }
        .highlight-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-4px);
        }
        .highlight-card .hl-icon {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .highlight-card h3 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        .highlight-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== 响应式 ========== */
        @media screen and (max-width: 1024px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.2rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .media-block {
                gap: 2rem;
            }
            .site-header .top-bar .menu a {
                padding: 0.5rem 0.7rem;
                font-size: 0.85rem;
            }
            .site-header .nav-right {
                gap: 0.4rem;
                margin-left: 0.4rem;
            }
            .btn-outline-sm,
            .btn-primary-sm {
                padding: 0.4rem 0.9rem;
                font-size: 0.78rem;
            }
        }

        @media screen and (max-width: 768px) {
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero .hero-subtitle {
                font-size: 1rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .stat-item .stat-number {
                font-size: 2.2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            section {
                padding: var(--section-padding-mobile);
            }
            .page-hero {
                padding: 3.5rem 0 3rem;
            }
            .page-hero .hero-stats-row {
                gap: 1.5rem;
            }
            .page-hero .hero-stat-mini .hs-num {
                font-size: 1.7rem;
            }
            .media-block {
                flex-direction: column !important;
                gap: 1.5rem;
            }
            .media-block .media-img,
            .media-block .media-body {
                flex: 1 1 auto;
                min-width: auto;
            }
            .site-header .top-bar .menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 62px;
                left: 0;
                right: 0;
                background: var(--secondary);
                padding: 1rem;
                gap: 0;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
                z-index: 999;
            }
            .site-header .top-bar .menu.open {
                display: flex;
            }
            .site-header .top-bar .menu li {
                width: 100%;
            }
            .site-header .top-bar .menu a {
                display: block;
                padding: 0.8rem 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                font-size: 0.95rem;
            }
            .hamburger-toggle {
                display: inline-block;
            }
            .site-header .nav-right {
                margin-left: auto;
            }
            .highlight-card {
                padding: 1.5rem;
            }
            .cta-strip {
                padding: 2rem 0;
            }
            .cta-strip h2 {
                font-size: 1.5rem;
            }
        }

        @media screen and (max-width: 520px) {
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
            .stat-item .stat-number {
                font-size: 1.8rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 0.8rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .page-hero .hero-stats-row {
                gap: 1rem;
                flex-direction: column;
            }
            .btn {
                padding: 0.65rem 1.5rem;
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 0.75rem 2rem;
                font-size: 1rem;
            }
            .card {
                padding: 1.2rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #E63946;
            --primary-dark: #C1121F;
            --secondary: #1D3557;
            --accent: #F4A261;
            --accent-light: rgba(244, 162, 97, 0.1);
            --bg: #FAFAFA;
            --bg-card: #FFFFFF;
            --bg-light: #F1F5F9;
            --text: #1E293B;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #CBD5E1;
            --border-light: #E2E8F0;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --section-padding: 5rem 0;
            --section-padding-mobile: 3rem 0;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            color: var(--text);
            background: var(--bg);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        a:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button {
            cursor: pointer;
            font-family: var(--font-stack);
        }

        input,
        select,
        textarea {
            font-family: var(--font-stack);
        }

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

        .text-small {
            font-size: 0.875rem;
        }

        .text-xs {
            font-size: 0.75rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        section {
            padding: var(--section-padding);
            position: relative;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-dark {
            background: var(--secondary);
            color: #fff;
        }

        .section-dark h2,
        .section-dark h3,
        .section-dark p {
            color: #fff;
        }

        .section-dark .text-muted {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            max-width: 680px;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        .text-center {
            text-align: center;
        }

        .text-left {
            text-align: left;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            background: var(--secondary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
            height: 62px;
            display: flex;
            align-items: center;
        }

        .site-header .top-bar {
            background: transparent;
            padding: 0;
            width: 100%;
        }

        .site-header .top-bar,
        .site-header .top-bar ul {
            background: transparent;
        }

        .site-header .top-bar .menu {
            background: transparent;
        }

        .site-header .top-bar .menu a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition), border-color var(--transition);
            border-bottom: 2px solid transparent;
            white-space: nowrap;
        }

        .site-header .top-bar .menu a:hover {
            color: #fff;
            border-bottom-color: var(--primary);
        }

        .site-header .top-bar .menu .active>a {
            color: #fff;
            border-bottom-color: var(--accent);
            font-weight: 600;
        }

        .site-header .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff !important;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .site-header .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }

        .site-header .logo:hover {
            color: #fff !important;
            opacity: 0.9;
        }

        .site-header .nav-right {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            margin-left: 0.8rem;
        }

        .notify-bell {
            position: relative;
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            cursor: pointer;
            transition: color var(--transition);
            padding: 0.3rem;
        }

        .notify-bell:hover {
            color: #fff;
        }

        .red-dot {
            position: absolute;
            top: 0;
            right: 0;
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            border: 1.5px solid var(--secondary);
        }

        .btn-outline-sm {
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            padding: 0.5rem 1.2rem;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition);
            white-space: nowrap;
            background: transparent;
            display: inline-block;
            text-align: center;
        }

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

        .btn-primary-sm {
            background: var(--primary);
            color: #fff;
            padding: 0.5rem 1.2rem;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition);
            white-space: nowrap;
            display: inline-block;
            text-align: center;
            border: none;
        }

        .btn-primary-sm:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.35);
        }

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.3rem 0.5rem;
        }

        /* ========== Hero ========== */
        .hero-category {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(29, 53, 87, 0.88) 0%, rgba(29, 53, 87, 0.55) 60%, rgba(29, 53, 87, 0.78) 100%);
            z-index: 1;
        }

        .hero-category .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 4rem 0;
        }

        .hero-category h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }

        .hero-category .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin-bottom: 2rem;
            line-height: 1.7;
        }

        .hero-category .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            padding: 0.8rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 22px rgba(230, 57, 70, 0.45);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background: transparent;
            color: #fff;
            padding: 0.8rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.55);
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
        }

        .btn-secondary:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        .hero-trust-strip {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.18);
        }

        .hero-trust-strip .trust-item {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero-trust-strip .trust-item i {
            color: var(--accent);
            font-size: 1rem;
        }

        /* ========== 板块通用 ========== */
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-header .section-title {
            margin-bottom: 0.5rem;
        }

        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 1.8rem;
            transition: all var(--transition);
            height: 100%;
            border: 1px solid transparent;
        }

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

        .card .card-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 1rem;
            display: inline-block;
            background: rgba(230, 57, 70, 0.08);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
        }

        .card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== 赛事卡片 ========== */
        .event-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            border: 1px solid var(--border-light);
        }

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

        .event-card .event-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .event-card .event-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            letter-spacing: 0.03em;
        }

        .event-card .event-body {
            padding: 1.4rem;
        }

        .event-card .event-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text);
        }

        .event-card .event-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.5;
            margin-bottom: 0.8rem;
        }

        .event-card .event-meta {
            display: flex;
            gap: 1rem;
            font-size: 0.8rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }

        .event-card .event-meta span {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        /* ========== 数据展示 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            text-align: center;
        }

        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }

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

        .stat-card .stat-number {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 0.5rem;
        }

        .stat-card .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .stat-card .stat-icon {
            font-size: 1.8rem;
            color: var(--accent);
            margin-bottom: 0.8rem;
        }

        /* ========== 流程 ========== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .process-step .step-number {
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 1rem;
            position: relative;
            z-index: 2;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.35);
        }

        .process-step h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.4rem;
            color: var(--text);
        }

        .process-step p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .process-step::after {
            content: '';
            position: absolute;
            top: 24px;
            left: 65%;
            width: 70%;
            height: 2px;
            background: var(--border-light);
            z-index: 1;
        }

        .process-step:last-child::after {
            display: none;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            margin-bottom: 0.8rem;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-stack);
        }

        .faq-question:hover {
            background: var(--bg-light);
        }

        .faq-question .faq-icon {
            font-size: 1rem;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 1rem;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--secondary);
            text-align: center;
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(230, 57, 70, 0.12);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            background: rgba(244, 162, 97, 0.1);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            margin-bottom: 2rem;
            position: relative;
            z-index: 1;
        }

        .cta-section .btn-primary {
            position: relative;
            z-index: 1;
            font-size: 1.1rem;
            padding: 0.9rem 2.5rem;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0F1D2F;
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 1.5rem;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .site-footer h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

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

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

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
        }

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

        /* ========== 响应式 ========== */
        @media screen and (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 2rem 1.5rem;
            }
            .process-step::after {
                display: none;
            }
            .hero-category h1 {
                font-size: 2.2rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: 56px;
                padding: 0.5rem 0;
            }
            .site-header .top-bar .menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--secondary);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 0.8rem 0;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
                border-radius: 0 0 var(--radius) var(--radius);
            }
            .site-header .top-bar .menu.show {
                display: flex;
            }
            .site-header .top-bar .menu li {
                width: 100%;
            }
            .site-header .top-bar .menu a {
                padding: 0.7rem 1.5rem;
                display: block;
                border-bottom: none;
                border-left: 3px solid transparent;
            }
            .site-header .top-bar .menu a:hover {
                border-left-color: var(--primary);
                border-bottom: none;
            }
            .site-header .top-bar .menu .active>a {
                border-left-color: var(--accent);
                border-bottom: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .site-header .nav-right {
                margin-left: auto;
            }
            .hero-category {
                min-height: 400px;
            }
            .hero-category h1 {
                font-size: 1.8rem;
            }
            .hero-category .hero-desc {
                font-size: 1rem;
            }
            .hero-category .hero-actions {
                flex-direction: column;
                gap: 0.7rem;
            }
            .hero-category .hero-actions .btn-primary,
            .hero-category .hero-actions .btn-secondary {
                width: 100%;
                text-align: center;
            }
            .hero-trust-strip {
                flex-direction: column;
                gap: 0.8rem;
            }
            section {
                padding: var(--section-padding-mobile);
            }
            .section-title {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .stat-card .stat-number {
                font-size: 2rem;
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        @media screen and (max-width: 520px) {
            .hero-category {
                min-height: 340px;
            }
            .hero-category h1 {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
            .site-header .nav-right {
                gap: 0.4rem;
            }
            .btn-outline-sm,
            .btn-primary-sm {
                padding: 0.4rem 0.8rem;
                font-size: 0.75rem;
            }
            .site-header .logo {
                font-size: 1.1rem;
            }
            .site-header .logo i {
                font-size: 1.2rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #E63946;
            --primary-dark: #C1121F;
            --secondary: #1D3557;
            --accent: #F4A261;
            --accent-light: rgba(244, 162, 97, 0.1);
            --bg: #FAFAFA;
            --bg-card: #FFFFFF;
            --bg-light: #F1F5F9;
            --text: #1E293B;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #CBD5E1;
            --border-light: #E2E8F0;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --section-padding: 5rem 0;
            --section-padding-mobile: 3rem 0;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            color: var(--text);
            background: var(--bg);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        a:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button {
            cursor: pointer;
            font-family: var(--font-stack);
        }

        input,
        select,
        textarea {
            font-family: var(--font-stack);
        }

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

        .text-small {
            font-size: 0.875rem;
        }

        .text-xs {
            font-size: 0.75rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        section {
            padding: var(--section-padding);
            position: relative;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-dark {
            background: var(--secondary);
            color: #fff;
        }

        .section-dark h2,
        .section-dark h3,
        .section-dark p {
            color: #fff;
        }

        .section-dark .text-muted {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            max-width: 680px;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        .text-center {
            text-align: center;
        }

        .text-left {
            text-align: left;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            background: var(--secondary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
            height: 62px;
            display: flex;
            align-items: center;
        }

        .site-header .top-bar-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            flex-wrap: nowrap;
        }

        .site-header .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff !important;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .site-header .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }

        .site-header .logo:hover {
            color: #fff !important;
            opacity: 0.9;
        }

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

        .site-header .nav-links li {
            margin: 0;
        }

        .site-header .nav-links a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.55rem 0.9rem;
            transition: color var(--transition), border-color var(--transition);
            border-bottom: 2px solid transparent;
            white-space: nowrap;
            display: inline-block;
        }

        .site-header .nav-links a:hover {
            color: #fff;
            border-bottom-color: var(--primary);
        }

        .site-header .nav-links .active>a {
            color: #fff;
            border-bottom-color: var(--accent);
            font-weight: 600;
        }

        .site-header .nav-right {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            flex-shrink: 0;
            margin-left: 0.8rem;
        }

        .notify-bell {
            position: relative;
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.15rem;
            cursor: pointer;
            transition: color var(--transition);
        }

        .notify-bell:hover {
            color: #fff;
        }

        .notify-bell .red-dot {
            position: absolute;
            top: -3px;
            right: -4px;
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            border: 1.5px solid var(--secondary);
        }

        .btn-outline-sm {
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition);
            white-space: nowrap;
        }

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

        .btn-primary-sm {
            background: var(--primary);
            color: #fff;
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition);
            white-space: nowrap;
            border: none;
        }

        .btn-primary-sm:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        /* 汉堡菜单按钮 */
        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.4rem;
            line-height: 1;
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 62px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(29, 53, 87, 0.98);
            z-index: 999;
            flex-direction: column;
            padding: 1.5rem;
            overflow-y: auto;
        }

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

        .mobile-menu-overlay a {
            color: #fff;
            font-size: 1.1rem;
            padding: 0.9rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
            display: block;
            font-weight: 500;
        }

        .mobile-menu-overlay a:hover {
            color: var(--accent);
        }

        .mobile-menu-overlay .mobile-cta-row {
            display: flex;
            gap: 0.8rem;
            margin-top: 1.5rem;
            padding-top: 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }

        .mobile-menu-overlay .mobile-cta-row a {
            flex: 1;
            text-align: center;
            border-bottom: none;
            padding: 0.7rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }

        /* ========== 按钮系统 ========== */
        .btn-primary {
            background: var(--primary);
            color: #fff;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            transition: all var(--transition);
            display: inline-block;
            cursor: pointer;
        }

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

        .btn-outline {
            color: var(--primary);
            border: 2px solid var(--primary);
            background: transparent;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            display: inline-block;
            cursor: pointer;
        }

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

        .btn-white {
            background: #fff;
            color: var(--primary);
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            transition: all var(--transition);
            display: inline-block;
            cursor: pointer;
        }

        .btn-white:hover {
            background: #f0f0f0;
            transform: translateY(-1px);
            box-shadow: var(--shadow);
        }

        .btn-lg {
            padding: 0.9rem 2.5rem;
            font-size: 1.1rem;
        }

        /* ========== Hero ========== */
        .hero-inner {
            position: relative;
            background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            min-height: 480px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-inner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(29, 53, 87, 0.88) 0%, rgba(29, 53, 87, 0.65) 40%, rgba(230, 57, 70, 0.45) 100%);
            z-index: 1;
        }

        .hero-inner .hero-content {
            position: relative;
            z-index: 2;
            padding: 4rem 0;
            width: 100%;
        }

        .hero-inner .hero-content h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .hero-inner .hero-content .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 2rem;
            max-width: 620px;
            line-height: 1.7;
        }

        .hero-inner .hero-content .hero-desc strong {
            color: #fff;
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 1.5rem;
            transition: all var(--transition);
            height: 100%;
            border: 1px solid var(--border-light);
        }

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

        .card .card-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 1rem;
            display: block;
        }

        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
        }

        .card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        .card-img {
            border-radius: var(--radius) var(--radius) 0 0;
            width: 100%;
            height: 200px;
            object-fit: cover;
            margin: -1.5rem -1.5rem 1rem -1.5rem;
            width: calc(100% + 3rem);
        }

        /* ========== 新闻特色卡片 ========== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 2rem 1.5rem;
            transition: all var(--transition);
            height: 100%;
            border-left: 4px solid transparent;
            text-align: center;
        }

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

        .feature-card:nth-child(1) {
            border-left-color: var(--primary);
        }

        .feature-card:nth-child(2) {
            border-left-color: var(--accent);
        }

        .feature-card:nth-child(3) {
            border-left-color: var(--secondary);
        }

        .feature-card .feature-icon {
            font-size: 2.8rem;
            margin-bottom: 1rem;
            display: block;
        }

        .feature-card:nth-child(1) .feature-icon {
            color: var(--primary);
        }

        .feature-card:nth-child(2) .feature-icon {
            color: var(--accent);
        }

        .feature-card:nth-child(3) .feature-icon {
            color: var(--secondary);
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* ========== 图文区块 ========== */
        .media-block {
            display: flex;
            align-items: center;
            gap: 3rem;
            flex-wrap: wrap;
        }

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

        .media-block .media-img {
            flex: 1 1 400px;
            min-width: 280px;
        }

        .media-block .media-img img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            width: 100%;
            object-fit: cover;
        }

        .media-block .media-text {
            flex: 1 1 350px;
            min-width: 280px;
        }

        .media-block .media-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text);
        }

        .media-block .media-text p {
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0.8rem;
        }

        /* ========== 覆盖范围标签 ========== */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.7rem;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .tag-list li {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            padding: 0.65rem 1.3rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
            transition: all var(--transition);
            cursor: default;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .tag-list li:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .tag-list li i {
            color: var(--primary);
            font-size: 0.85rem;
        }

        /* ========== 订阅CTA区 ========== */
        .cta-box {
            background: var(--secondary);
            border-radius: var(--radius-xl);
            padding: 3rem 2.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(230, 57, 70, 0.15);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            background: rgba(244, 162, 97, 0.12);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-box h2 {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            position: relative;
            z-index: 1;
        }

        .cta-box p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            margin-bottom: 1.8rem;
            position: relative;
            z-index: 1;
        }

        .cta-box .btn-cta-row {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ========== FAQ ========== */
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 1.2rem 0;
            cursor: pointer;
            transition: all var(--transition);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }

        .faq-item .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text);
            gap: 1rem;
            user-select: none;
        }

        .faq-item .faq-question i {
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            color: var(--text-muted);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 0.8rem;
        }

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

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0F1B2D;
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 2rem;
            font-size: 0.9rem;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2.5rem;
        }

        .site-footer h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

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

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

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
            font-size: 0.88rem;
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
        }

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

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

        .site-footer .footer-bottom p {
            margin: 0.2rem 0;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .site-header .nav-links a {
                font-size: 0.85rem;
                padding: 0.5rem 0.6rem;
            }
            .site-header .nav-right {
                gap: 0.5rem;
                margin-left: 0.4rem;
            }
            .btn-outline-sm,
            .btn-primary-sm {
                padding: 0.4rem 0.8rem;
                font-size: 0.78rem;
            }
            .hero-inner {
                min-height: 380px;
            }
            .hero-inner .hero-content h1 {
                font-size: 2rem;
            }
            .hero-inner .hero-content .hero-desc {
                font-size: 1rem;
            }
            .media-block {
                gap: 2rem;
            }
            .media-block .media-text h3 {
                font-size: 1.35rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            section {
                padding: 3.5rem 0;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: 56px;
            }
            .site-header .nav-links {
                display: none;
            }
            .site-header .nav-right {
                display: none;
            }
            .hamburger-toggle {
                display: block;
            }
            .hero-inner {
                min-height: 340px;
            }
            .hero-inner .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-inner .hero-content .hero-desc {
                font-size: 0.95rem;
            }
            .media-block {
                flex-direction: column;
                gap: 1.5rem;
            }
            .media-block.reverse {
                flex-direction: column;
            }
            .media-block .media-img {
                flex: 1 1 auto;
                min-width: 100%;
            }
            .media-block .media-text {
                flex: 1 1 auto;
                min-width: 100%;
            }
            .media-block .media-text h3 {
                font-size: 1.3rem;
            }
            .cta-box {
                padding: 2rem 1.5rem;
            }
            .cta-box h2 {
                font-size: 1.4rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            section {
                padding: 2.5rem 0;
            }
            .feature-card {
                margin-bottom: 1rem;
            }
            .card {
                margin-bottom: 1rem;
            }
            .tag-list {
                gap: 0.5rem;
            }
            .tag-list li {
                padding: 0.5rem 1rem;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 520px) {
            .hero-inner {
                min-height: 300px;
            }
            .hero-inner .hero-content h1 {
                font-size: 1.45rem;
            }
            .hero-inner .hero-content .hero-desc {
                font-size: 0.88rem;
            }
            .hero-inner .hero-content {
                padding: 2.5rem 0;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .cta-box h2 {
                font-size: 1.25rem;
            }
            .cta-box p {
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 0.7rem 1.8rem;
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .media-block .media-text h3 {
                font-size: 1.15rem;
            }
            .card h3 {
                font-size: 1.05rem;
            }
            .feature-card h3 {
                font-size: 1.1rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #E63946;
            --primary-dark: #C1121F;
            --secondary: #1D3557;
            --accent: #F4A261;
            --accent-light: rgba(244, 162, 97, 0.1);
            --bg: #FAFAFA;
            --bg-card: #FFFFFF;
            --bg-light: #F1F5F9;
            --text: #1E293B;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #CBD5E1;
            --border-light: #E2E8F0;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --section-padding: 5rem 0;
            --section-padding-mobile: 3rem 0;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            color: var(--text);
            background: var(--bg);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        a:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button {
            cursor: pointer;
            font-family: var(--font-stack);
        }

        input,
        select,
        textarea {
            font-family: var(--font-stack);
        }

        .text-muted {
            color: var(--text-muted);
        }
        .text-small {
            font-size: 0.875rem;
        }
        .text-xs {
            font-size: 0.75rem;
        }
        .text-center {
            text-align: center;
        }
        .text-left {
            text-align: left;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        section {
            padding: var(--section-padding);
            position: relative;
        }
        .section-alt {
            background: var(--bg-light);
        }
        .section-dark {
            background: var(--secondary);
            color: #fff;
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark p {
            color: #fff;
        }
        .section-dark .text-muted {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            max-width: 680px;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ========== 导航栏 ========== */
        .site-header {
            background: var(--secondary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
            height: 62px;
            display: flex;
            align-items: center;
        }
        .site-header .top-bar {
            background: transparent;
            padding: 0;
            width: 100%;
        }
        .site-header .top-bar,
        .site-header .top-bar ul {
            background: transparent;
        }
        .site-header .top-bar .menu {
            background: transparent;
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 0.2rem;
        }
        .site-header .top-bar .menu li {
            list-style: none;
        }
        .site-header .top-bar .menu a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition), border-color var(--transition);
            border-bottom: 2px solid transparent;
            white-space: nowrap;
            display: inline-block;
            text-decoration: none;
        }
        .site-header .top-bar .menu a:hover {
            color: #fff;
            border-bottom-color: var(--primary);
        }
        .site-header .top-bar .menu .active>a {
            color: #fff;
            border-bottom-color: var(--accent);
            font-weight: 600;
        }
        .site-header .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff !important;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
            text-decoration: none;
        }
        .site-header .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .site-header .logo:hover {
            color: #fff !important;
            opacity: 0.9;
        }
        .site-header .nav-right {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            margin-left: 0.8rem;
        }
        .notify-bell {
            position: relative;
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            cursor: pointer;
            transition: color var(--transition);
        }
        .notify-bell:hover {
            color: #fff;
        }
        .red-dot {
            position: absolute;
            top: -2px;
            right: -3px;
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            display: inline-block;
        }
        .btn-outline-sm {
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            padding: 0.5rem 1.2rem;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.85rem;
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-outline-sm:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .btn-primary-sm {
            background: var(--primary);
            color: #fff;
            padding: 0.5rem 1.2rem;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.85rem;
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary-sm:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.4rem;
        }

        /* ========== 按钮 ========== */
        .btn-primary {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            text-align: center;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            text-align: center;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-lg {
            padding: 0.9rem 2.5rem;
            font-size: 1.1rem;
            border-radius: var(--radius);
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 1.5rem;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-light);
        }

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            justify-content: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(29, 53, 87, 0.82) 0%, rgba(29, 53, 87, 0.55) 60%, rgba(29, 53, 87, 0.7) 100%);
            z-index: 1;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 750px;
            padding: 2rem 1.5rem;
        }
        .hero-section .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
            line-height: 1.25;
        }
        .hero-section .hero-content p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 2rem;
            line-height: 1.7;
        }
        .hero-section .hero-content .hero-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ========== 品牌故事 ========== */
        .brand-story-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .brand-story-grid .story-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .brand-story-grid .story-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .brand-story-grid .story-text h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            color: var(--text);
        }
        .brand-story-grid .story-text p {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        /* ========== 时间线 ========== */
        .timeline {
            position: relative;
            padding-left: 2.5rem;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--border-light);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
            padding-left: 1.5rem;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2.3rem;
            top: 6px;
            width: 16px;
            height: 16px;
            background: var(--primary);
            border-radius: 50%;
            border: 3px solid #fff;
            box-shadow: var(--shadow-sm);
            z-index: 2;
        }
        .timeline-item .timeline-year {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.03em;
            margin-bottom: 0.3rem;
        }
        .timeline-item h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            color: var(--text);
        }
        .timeline-item p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* ========== 统计数字 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-light);
        }
        .stat-card .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 0.4rem;
        }
        .stat-card .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== 价值观 ========== */
        .values-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .value-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .value-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-light);
        }
        .value-card .value-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
            display: block;
        }
        .value-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
        }
        .value-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== 合作伙伴 ========== */
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1.5rem;
            align-items: center;
        }
        .partner-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            filter: grayscale(100%);
            opacity: 0.7;
            cursor: default;
            border: 1px solid var(--border-light);
        }
        .partner-item:hover {
            filter: grayscale(0%);
            opacity: 1;
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .partner-item .partner-icon {
            font-size: 2.2rem;
            color: var(--secondary);
            margin-bottom: 0.5rem;
        }
        .partner-item .partner-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 1.2rem 0;
            cursor: pointer;
            transition: all var(--transition);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }
        .faq-item .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            transition: color var(--transition);
        }
        .faq-item .faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding-top 0.35s ease;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-top: 0.8rem;
        }
        .faq-item:hover .faq-question {
            color: var(--primary);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--secondary);
            text-align: center;
            padding: 4rem 1.5rem;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-white-outline {
            display: inline-block;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            text-align: center;
        }
        .btn-white-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0F1D2F;
            color: rgba(255, 255, 255, 0.75);
            padding: 3rem 0 1.5rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        .site-footer h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 0.5rem;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition);
            text-decoration: none;
        }
        .site-footer ul li a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 2;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .brand-story-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .values-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .hero-section .hero-content h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .site-header .top-bar .menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 62px;
                left: 0;
                right: 0;
                background: var(--secondary);
                padding: 1rem;
                gap: 0;
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .site-header .top-bar .menu.open {
                display: flex;
            }
            .site-header .top-bar .menu a {
                padding: 0.8rem 1rem;
                border-bottom: none;
                width: 100%;
            }
            .mobile-toggle {
                display: block;
            }
            .site-header .nav-right {
                margin-left: auto;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .values-grid {
                grid-template-columns: 1fr;
            }
            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-section {
                min-height: 380px;
            }
            .hero-section .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-section .hero-content p {
                font-size: 1rem;
            }
            section {
                padding: var(--section-padding-mobile);
            }
            .section-title {
                font-size: 1.5rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            .timeline {
                padding-left: 2rem;
            }
            .timeline-item {
                padding-left: 1rem;
            }
            .timeline-item::before {
                left: -1.9rem;
                width: 13px;
                height: 13px;
            }
            .stat-card .stat-number {
                font-size: 2.2rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .partners-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
            .hero-section .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-section .hero-content .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .hero-section .hero-content .hero-buttons .btn-primary,
            .hero-section .hero-content .hero-buttons .btn-outline {
                width: 100%;
                text-align: center;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .brand-story-grid .story-text h2 {
                font-size: 1.4rem;
            }
            .cta-section .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .cta-section .cta-buttons .btn-primary,
            .cta-section .cta-buttons .btn-white-outline {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #E63946;
            --primary-dark: #C1121F;
            --secondary: #1D3557;
            --accent: #F4A261;
            --accent-light: rgba(244, 162, 97, 0.1);
            --bg: #FAFAFA;
            --bg-card: #FFFFFF;
            --bg-light: #F1F5F9;
            --text: #1E293B;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #CBD5E1;
            --border-light: #E2E8F0;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --section-padding: 5rem 0;
            --section-padding-mobile: 3rem 0;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            color: var(--text);
            background: var(--bg);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        a:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button {
            cursor: pointer;
            font-family: var(--font-stack);
        }

        input,
        select,
        textarea {
            font-family: var(--font-stack);
        }

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

        .text-small {
            font-size: 0.875rem;
        }

        .text-xs {
            font-size: 0.75rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        section {
            padding: var(--section-padding);
            position: relative;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-dark {
            background: var(--secondary);
            color: #fff;
        }

        .section-dark h2,
        .section-dark h3,
        .section-dark p {
            color: #fff;
        }

        .section-dark .text-muted {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            max-width: 680px;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        .text-center {
            text-align: center;
        }

        .text-left {
            text-align: left;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            background: var(--secondary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
            height: 62px;
            display: flex;
            align-items: center;
        }

        .site-header .top-bar {
            background: transparent;
            padding: 0;
            width: 100%;
        }

        .site-header .top-bar,
        .site-header .top-bar ul {
            background: transparent;
        }

        .site-header .top-bar .menu {
            background: transparent;
        }

        .site-header .top-bar .menu a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition), border-color var(--transition);
            border-bottom: 2px solid transparent;
            white-space: nowrap;
        }

        .site-header .top-bar .menu a:hover {
            color: #fff;
            border-bottom-color: var(--primary);
        }

        .site-header .top-bar .menu .active>a {
            color: #fff;
            border-bottom-color: var(--accent);
            font-weight: 600;
        }

        .site-header .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff !important;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .site-header .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }

        .site-header .logo:hover {
            color: #fff !important;
            opacity: 0.9;
        }

        .site-header .nav-right {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            margin-left: 0.8rem;
        }

        .notify-bell {
            position: relative;
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            cursor: pointer;
            transition: color var(--transition);
        }

        .notify-bell:hover {
            color: #fff;
        }

        .red-dot {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            display: block;
        }

        .btn-outline-sm {
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-outline-sm:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }

        .btn-primary-sm {
            background: var(--primary);
            color: #fff;
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition);
            white-space: nowrap;
            border: none;
        }

        .btn-primary-sm:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        /* 移动端导航 */
        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.3rem;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 62px;
            left: 0;
            right: 0;
            background: var(--secondary);
            z-index: 999;
            padding: 1rem 1.5rem;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
            flex-direction: column;
            gap: 0.3rem;
        }

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

        .mobile-menu a {
            color: rgba(255, 255, 255, 0.9);
            padding: 0.7rem 0;
            font-weight: 500;
            font-size: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            display: block;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active-mobile {
            color: #fff;
            font-weight: 600;
        }

        .mobile-menu .mobile-cta-group {
            display: flex;
            gap: 0.6rem;
            margin-top: 0.8rem;
            padding-top: 0.8rem;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-block;
            font-weight: 600;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            text-align: center;
            cursor: pointer;
            border: none;
            font-size: 1rem;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

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

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

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

        .btn-white {
            background: #fff;
            color: var(--primary);
        }

        .btn-white:hover {
            background: #f5f5f5;
            color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow);
        }

        .btn-lg {
            padding: 0.9rem 2.5rem;
            font-size: 1.1rem;
            border-radius: var(--radius);
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 1.5rem;
            transition: all var(--transition);
            border: none;
            height: 100%;
        }

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

        .card-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
        }

        .card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== Hero ========== */
        .hero-category {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(29, 53, 87, 0.85) 0%, rgba(29, 53, 87, 0.55) 60%, rgba(29, 53, 87, 0.75) 100%);
            z-index: 1;
        }

        .hero-category .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 3rem 0;
        }

        .hero-category .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
            justify-content: center;
        }

        .hero-category .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            padding: 0.4rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all var(--transition);
            cursor: default;
        }

        .hero-category .hero-badge:hover {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.4);
        }

        .hero-category h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .hero-category .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 650px;
            margin: 0 auto 1.8rem;
            line-height: 1.7;
        }

        .hero-category .hero-cta-group {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            justify-content: center;
        }

        /* ========== 服务卡片特色 ========== */
        .service-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border-left: 4px solid transparent;
            position: relative;
            overflow: hidden;
        }

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

        .service-card .service-icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.2rem;
            font-size: 1.6rem;
            color: var(--primary);
            transition: all var(--transition);
        }

        .service-card:hover .service-icon-circle {
            background: var(--primary);
            color: #fff;
        }

        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.93rem;
            line-height: 1.6;
        }

        /* ========== 双栏图文 ========== */
        .two-col-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .two-col-block.reverse {
            direction: rtl;
        }

        .two-col-block.reverse .two-col-text {
            direction: ltr;
        }

        .two-col-block .two-col-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            object-fit: cover;
        }

        .two-col-text h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text);
        }

        .two-col-text p {
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0.8rem;
            font-size: 1rem;
        }

        /* ========== 流程步骤 ========== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            position: relative;
        }

        .step-card {
            text-align: center;
            padding: 1.5rem;
            position: relative;
        }

        .step-number {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            transition: all var(--transition);
        }

        .step-card:hover .step-number {
            background: var(--primary-dark);
            transform: scale(1.1);
            box-shadow: var(--shadow);
        }

        .step-card h4 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 0.4rem;
            color: var(--text);
        }

        .step-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.5;
        }

        .step-connector {
            position: absolute;
            top: 40px;
            left: calc(50% + 25px);
            width: calc(100% - 50px);
            height: 2px;
            background: var(--border-light);
            z-index: 0;
        }

        /* ========== 数据统计条 ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            text-align: center;
        }

        .stat-item {
            padding: 2rem 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .stat-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.3rem;
            letter-spacing: -0.02em;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 1.2rem 0;
            cursor: pointer;
            transition: all var(--transition);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text);
            gap: 1rem;
        }

        .faq-question i {
            color: var(--primary);
            transition: transform var(--transition);
            font-size: 1rem;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 0.8rem;
        }

        /* ========== CTA 底部 ========== */
        .cta-sticky-bar {
            position: sticky;
            bottom: 0;
            z-index: 900;
            background: var(--primary);
            color: #fff;
            padding: 1rem 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
        }

        .cta-sticky-bar .cta-text {
            font-weight: 600;
            font-size: 1.05rem;
        }

        .cta-sticky-bar .btn-sticky {
            background: #fff;
            color: var(--primary);
            padding: 0.7rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            border: none;
            white-space: nowrap;
        }

        .cta-sticky-bar .btn-sticky:hover {
            background: #f0f0f0;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--secondary);
            color: #fff;
            padding: 3rem 0 1.5rem;
        }

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

        .site-footer h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

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

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

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9rem;
            transition: color var(--transition);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.85rem;
        }

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

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .service-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .two-col-block {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .two-col-block.reverse {
                direction: ltr;
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-connector {
                display: none;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-category h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            section {
                padding: var(--section-padding-mobile);
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-header .top-bar .menu {
                display: none;
            }
            .hamburger-toggle {
                display: block;
            }
            .site-header .nav-right {
                margin-left: auto;
            }
        }

        @media (max-width: 640px) {
            .service-card-grid {
                grid-template-columns: 1fr;
            }
            .steps-row {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
            }
            .hero-category {
                min-height: 400px;
            }
            .hero-category h1 {
                font-size: 1.8rem;
            }
            .hero-category .hero-subtitle {
                font-size: 1rem;
            }
            .hero-category .hero-badge-row {
                gap: 0.3rem;
            }
            .hero-category .hero-badge {
                font-size: 0.75rem;
                padding: 0.3rem 0.7rem;
            }
            .cta-sticky-bar {
                flex-direction: column;
                text-align: center;
                padding: 1rem;
            }
            .cta-sticky-bar .btn-sticky {
                width: 100%;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            section {
                padding: 2.5rem 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .two-col-text h2 {
                font-size: 1.4rem;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 480px) {
            .stats-bar {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-category h1 {
                font-size: 1.5rem;
            }
            .hero-category .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }
            .hero-category .hero-cta-group .btn {
                width: 100%;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #E63946;
            --primary-dark: #C1121F;
            --secondary: #1D3557;
            --accent: #F4A261;
            --accent-light: rgba(244, 162, 97, 0.1);
            --bg: #FAFAFA;
            --bg-card: #FFFFFF;
            --bg-light: #F1F5F9;
            --text: #1E293B;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #CBD5E1;
            --border-light: #E2E8F0;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --section-padding: 5rem 0;
            --section-padding-mobile: 3rem 0;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            color: var(--text);
            background: var(--bg);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background var(--transition);
        }

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

        a:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button {
            cursor: pointer;
            font-family: var(--font-stack);
            border: none;
            transition: all var(--transition);
        }

        input,
        select,
        textarea {
            font-family: var(--font-stack);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1rem;
            font-size: 0.95rem;
            transition: border-color var(--transition), box-shadow var(--transition);
            width: 100%;
        }

        input:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.12);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text);
            line-height: 1.3;
            margin: 0 0 0.8rem;
            font-weight: 700;
        }

        h1 {
            font-size: 2.5rem;
            letter-spacing: -0.02em;
        }

        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }

        h3 {
            font-size: 1.5rem;
        }

        h4 {
            font-size: 1.15rem;
            font-weight: 600;
        }

        p {
            margin-bottom: 1.2rem;
            color: var(--text);
        }

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

        .text-small {
            font-size: 0.875rem;
        }

        .text-xs {
            font-size: 0.75rem;
        }

        .text-center {
            text-align: center;
        }

        .text-left {
            text-align: left;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        section {
            padding: var(--section-padding);
            position: relative;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-dark {
            background: var(--secondary);
            color: #fff;
        }

        .section-dark h2,
        .section-dark h3,
        .section-dark h4,
        .section-dark p {
            color: #fff;
        }

        .section-dark .text-muted {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            max-width: 680px;
            line-height: 1.7;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ========== 导航栏 ========== */
        .site-header {
            background: var(--secondary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
            height: 62px;
            display: flex;
            align-items: center;
            width: 100%;
        }

        .site-header .top-bar {
            background: transparent;
            padding: 0;
            width: 100%;
        }

        .site-header .top-bar,
        .site-header .top-bar ul {
            background: transparent;
        }

        .site-header .top-bar .menu {
            background: transparent;
            display: flex;
            align-items: center;
            gap: 0.1rem;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .site-header .top-bar .menu li {
            list-style: none;
            margin: 0;
        }

        .site-header .top-bar .menu a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 0.9rem;
            transition: color var(--transition), border-color var(--transition);
            border-bottom: 2px solid transparent;
            white-space: nowrap;
            display: inline-block;
        }

        .site-header .top-bar .menu a:hover {
            color: #fff;
            border-bottom-color: var(--primary);
        }

        .site-header .top-bar .menu .active>a {
            color: #fff;
            border-bottom-color: var(--accent);
            font-weight: 600;
        }

        .site-header .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff !important;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
            border-bottom: none !important;
        }

        .site-header .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }

        .site-header .logo:hover {
            color: #fff !important;
            opacity: 0.9;
            border-bottom: none !important;
        }

        .site-header .nav-right {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            margin-left: 0.8rem;
            flex-shrink: 0;
        }

        .notify-bell {
            position: relative;
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            cursor: pointer;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
        }

        .notify-bell:hover {
            color: #fff;
        }

        .red-dot {
            position: absolute;
            top: -4px;
            right: -6px;
            width: 8px;
            height: 8px;
            background: #E63946;
            border-radius: 50%;
            border: 2px solid var(--secondary);
        }

        .btn-outline-sm {
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            display: inline-block;
        }

        .btn-outline-sm:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .btn-primary-sm {
            background: var(--primary);
            color: #fff;
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            display: inline-block;
            border: none;
        }

        .btn-primary-sm:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 2px 8px rgba(230, 57, 70, 0.35);
        }

        /* ========== 按钮系统 ========== */
        .btn {
            display: inline-block;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            border: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 2px solid var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.2);
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            border: 2px solid #fff;
            font-weight: 600;
        }

        .btn-white:hover {
            background: transparent;
            color: #fff;
            border-color: #fff;
        }

        .btn-lg {
            padding: 0.9rem 2.5rem;
            font-size: 1.05rem;
            border-radius: var(--radius);
        }

        /* ========== 卡片系统 ========== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 1.5rem;
            transition: all var(--transition);
            border: 1px solid transparent;
            height: 100%;
        }

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

        .card-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
            display: inline-block;
            transition: transform var(--transition);
        }

        .card:hover .card-icon {
            transform: scale(1.1);
        }

        .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text);
        }

        .card-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== 标签/徽章 ========== */
        .badge {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.25rem 0.7rem;
            border-radius: 12px;
            letter-spacing: 0.03em;
        }

        .badge-primary {
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
        }

        .badge-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-muted);
        }

        /* ========== Hero区 ========== */
        .hero-section {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 6rem 0;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(29, 53, 87, 0.88) 0%, rgba(29, 53, 87, 0.65) 50%, rgba(29, 53, 87, 0.4) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .hero-content h1 {
            color: #fff;
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .hero-content .hero-subtitle {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.15rem;
            line-height: 1.7;
            margin-bottom: 2rem;
            max-width: 560px;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 2.5rem;
            flex-wrap: wrap;
        }

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

        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.01em;
            line-height: 1;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.3rem;
        }

        /* ========== 网格系统 ========== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
            align-items: center;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        /* ========== 图文区块 ========== */
        .image-block {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .image-block img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .image-block:hover img {
            transform: scale(1.03);
        }

        .content-block h3 {
            font-size: 1.6rem;
            margin-bottom: 1rem;
        }

        .content-block p {
            line-height: 1.7;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        /* ========== 流程/步骤 ========== */
        .steps-list {
            list-style: none;
            padding: 0;
            margin: 0;
            counter-reset: step-counter;
        }

        .steps-list li {
            counter-increment: step-counter;
            position: relative;
            padding-left: 4rem;
            margin-bottom: 2.2rem;
            padding-top: 0.3rem;
            min-height: 3rem;
        }

        .steps-list li::before {
            content: counter(step-counter);
            position: absolute;
            left: 0;
            top: 0;
            width: 2.8rem;
            height: 2.8rem;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }

        .steps-list li h4 {
            margin-bottom: 0.3rem;
            font-weight: 700;
        }

        .steps-list li p {
            color: var(--text-muted);
            margin-bottom: 0;
            font-size: 0.95rem;
        }

        /* ========== FAQ ========== */
        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            margin-bottom: 0.8rem;
            overflow: hidden;
            background: var(--bg-card);
            transition: box-shadow var(--transition);
        }

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.2rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            background: var(--bg-card);
            border: none;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
            transition: color var(--transition);
            gap: 1rem;
        }

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

        .faq-icon {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.2rem;
        }

        .faq-answer p {
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA区 ========== */
        .cta-section {
            background: var(--primary);
            padding: 4rem 0;
            text-align: center;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 0.6rem;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 2rem;
            font-size: 1.05rem;
        }

        .cta-section .btn-white {
            font-size: 1rem;
            padding: 0.85rem 2.5rem;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #16273e;
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 1.5rem;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2.5rem;
        }

        .site-footer h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

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

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

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 2;
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition);
        }

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

        /* ========== 数据展示区 ========== */
        .stats-row {
            display: flex;
            gap: 2rem;
            justify-content: center;
            flex-wrap: wrap;
            text-align: center;
        }

        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-sm);
            min-width: 160px;
            flex: 1;
            max-width: 220px;
            transition: all var(--transition);
        }

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

        .stat-card .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
        }

        .stat-card .stat-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: 0.4rem;
        }

        /* ========== 话题卡片 ========== */
        .topic-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border-left: 4px solid var(--primary);
        }

        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateX(4px);
        }

        .topic-card .topic-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .topic-card .topic-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            color: var(--text);
        }

        .topic-card .topic-excerpt {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== 分隔线 ========== */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
            margin: 0.8rem 0 1.5rem;
        }

        .divider-center {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 响应式 ========== */
        @media screen and (max-width: 1024px) {
            h1 {
                font-size: 2.2rem;
            }

            h2 {
                font-size: 1.7rem;
            }

            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .grid-2 {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .hero-content h1 {
                font-size: 2.3rem;
            }

            .hero-stats {
                gap: 1.5rem;
            }
        }

        @media screen and (max-width: 768px) {
            .grid-3 {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }

            .stats-row {
                gap: 1rem;
            }

            .stat-card {
                min-width: 130px;
                max-width: 100%;
                flex: 1 1 40%;
                padding: 1.5rem 1rem;
            }

            .stat-card .stat-number {
                font-size: 2rem;
            }

            .hero-section {
                min-height: 400px;
                padding: 4rem 0;
            }

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

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

            .site-header .top-bar .menu {
                gap: 0;
            }

            .site-header .top-bar .menu a {
                font-size: 0.8rem;
                padding: 0.4rem 0.5rem;
            }

            section {
                padding: var(--section-padding-mobile);
            }

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

            .content-block h3 {
                font-size: 1.3rem;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }

            .hero-buttons {
                flex-direction: column;
                gap: 0.8rem;
            }

            .hero-buttons .btn {
                width: 100%;
            }

            .steps-list li {
                padding-left: 3.5rem;
            }

            .steps-list li::before {
                width: 2.4rem;
                height: 2.4rem;
                font-size: 1rem;
            }
        }

        @media screen and (max-width: 520px) {
            h1 {
                font-size: 1.8rem;
            }

            h2 {
                font-size: 1.5rem;
            }

            .hero-content h1 {
                font-size: 1.7rem;
            }

            .grid-4 {
                grid-template-columns: 1fr;
            }

            .stat-card {
                flex: 1 1 100%;
                max-width: 100%;
            }

            .site-header {
                height: auto;
                min-height: 56px;
                padding: 0.5rem 0;
            }

            .site-header .top-bar .menu {
                flex-wrap: wrap;
                justify-content: center;
                gap: 0.2rem;
            }

            .site-header .top-bar .menu a {
                font-size: 0.75rem;
                padding: 0.35rem 0.5rem;
            }

            .site-header .nav-right {
                margin-left: 0;
                gap: 0.4rem;
            }

            .btn-outline-sm,
            .btn-primary-sm {
                font-size: 0.75rem;
                padding: 0.4rem 0.8rem;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }

            .hero-stats {
                flex-direction: column;
                gap: 0.8rem;
            }

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

            .faq-question {
                font-size: 0.9rem;
                padding: 1rem 1.2rem;
            }
        }

        /* ========== 动画辅助 ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-in {
            animation: fadeInUp 0.6s ease forwards;
        }