/* roulang page: index */
:root {
            --primary: #3A7BD5;
            --primary-dark: #2F6BB8;
            --secondary: #7FB2E5;
            --bg-soft: #EAF2FA;
            --bg-light: #F7FAFD;
            --bg-body: #F9FBFE;
            --text-main: #1F2A44;
            --text-secondary: #5A6B85;
            --text-muted: #8AA0B8;
            --border: rgba(47, 107, 184, 0.18);
            --shadow-card: 0 6px 18px rgba(30, 90, 160, 0.08);
            --shadow-hover: 0 12px 28px rgba(30, 90, 160, 0.16);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 50px;
            --transition: all 0.25s ease;
            --section-padding: 68px 0;
        }

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

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            font-size: 15px;
            font-weight: 400;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

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

        input,
        textarea {
            font-family: inherit;
        }

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

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

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

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

        .section-block--white {
            background: #fff;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-soft);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-label .dot {
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
            display: inline-block;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 780px;
            margin-bottom: 32px;
        }

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

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

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .site-header .container-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            padding-bottom: 14px;
            gap: 20px;
            flex-wrap: wrap;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .brand-logo:hover,
        .brand-logo:focus {
            color: var(--primary-dark);
        }

        .brand-logo .logo-mark {
            display: flex;
            gap: 4px;
            align-items: center;
        }

        .brand-logo .logo-mark span {
            width: 10px;
            height: 10px;
            border-radius: 3px;
            display: inline-block;
        }

        .brand-logo .logo-mark .lm1 {
            background: var(--primary);
        }

        .brand-logo .logo-mark .lm2 {
            background: var(--secondary);
        }

        .brand-logo .logo-mark .lm3 {
            background: #B8D4F0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 2px;
            transition: var(--transition);
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--primary);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary-dark);
            background: var(--bg-soft);
            border-radius: var(--radius-badge);
            padding: 6px 14px;
            white-space: nowrap;
        }

        .status-badge .pulse-dot {
            width: 7px;
            height: 7px;
            background: var(--primary);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: none;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            cursor: pointer;
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(47, 107, 184, 0.3);
        }

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

        .btn-outline:hover,
        .btn-outline:focus {
            background: var(--bg-soft);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 13px;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 15px;
        }

        /* 移动端汉堡 */
        .nav-toggle {
            display: none;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 18px;
            color: var(--text-main);
            cursor: pointer;
            transition: var(--transition);
        }

        .nav-toggle:hover,
        .nav-toggle:focus {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* ===== Hero ===== */
        .hero-section {
            background: linear-gradient(180deg, #F7FAFD 0%, #EAF2FA 100%);
            position: relative;
            overflow: hidden;
            padding: 72px 0 80px;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(47, 107, 184, 0.08) 1px, transparent 1px);
            background-size: 28px 28px;
            pointer-events: none;
        }

        .hero-section .container-main {
            position: relative;
            z-index: 1;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 48px;
            align-items: center;
        }

        .hero-text .section-label {
            margin-bottom: 20px;
        }

        .hero-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-main);
            letter-spacing: -0.02em;
            margin-bottom: 18px;
        }

        .hero-title .highlight {
            background: linear-gradient(180deg, transparent 60%, rgba(58, 123, 213, 0.22) 60%);
            padding: 0 4px;
            border-radius: 4px;
            display: inline;
        }

        .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .hero-meta {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .hero-meta i {
            color: var(--primary);
            font-size: 14px;
        }

        /* Hero 代码/数据面板 */
        .hero-panel {
            background: #1F2A44;
            border-radius: 16px;
            padding: 24px 28px;
            box-shadow: 0 16px 40px rgba(31, 42, 68, 0.28);
            color: #E6EDF6;
            font-family: 'SF Mono', 'Cascadia Code', 'Consolas', 'Menlo', monospace;
            font-size: 13px;
            line-height: 1.7;
            position: relative;
        }

        .hero-panel .panel-header {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 18px;
            padding-bottom: 14px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 12px;
            color: #A0B4CC;
            letter-spacing: 0.5px;
        }

        .hero-panel .panel-header .traffic-dots {
            display: flex;
            gap: 6px;
            margin-right: 8px;
        }

        .hero-panel .panel-header .traffic-dots span {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            display: inline-block;
        }

        .hero-panel .td1 {
            background: #FF6B6B;
        }
        .hero-panel .td2 {
            background: #FFD93D;
        }
        .hero-panel .td3 {
            background: #6BCB77;
        }

        .hero-panel .code-line {
            display: flex;
            gap: 12px;
            padding: 3px 0;
        }

        .hero-panel .code-line .ln {
            color: #5A6B85;
            min-width: 22px;
            text-align: right;
            user-select: none;
        }

        .hero-panel .code-line .key {
            color: #7FB2E5;
        }

        .hero-panel .code-line .val {
            color: #E6EDF6;
        }

        .hero-panel .code-line .tag {
            color: #FFD93D;
        }

        .hero-panel .code-line .comment {
            color: #6B7A90;
        }

        .hero-panel .panel-footer {
            margin-top: 18px;
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #A0B4CC;
        }

        .hero-panel .panel-footer .status-ok {
            color: #6BCB77;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== 卡片通用 ===== */
        .card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid rgba(47, 107, 184, 0.14);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(47, 107, 184, 0.28);
        }

        .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            border-radius: 12px 12px 0 0;
        }

        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
            border-radius: 0;
        }

        .card:hover .card-img img {
            transform: scale(1.05);
        }

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

        .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary-dark);
            background: var(--bg-soft);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            margin-bottom: 12px;
        }

        .card-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }

        .card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .card-link:hover,
        .card-link:focus {
            color: var(--primary-dark);
            gap: 10px;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        /* ===== 阶梯/层次 ===== */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }

        .tier-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid rgba(47, 107, 184, 0.14);
            box-shadow: var(--shadow-card);
            padding: 28px 26px;
            position: relative;
            transition: var(--transition);
        }

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

        .tier-card .tier-level {
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1.2px;
            margin-bottom: 10px;
        }

        .tier-card .tier-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .tier-card .tier-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }

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

        .tier-card .tier-tags span {
            font-size: 11px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            background: var(--bg-light);
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }

        .tier-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            border-radius: var(--radius-card) 0 0 var(--radius-card);
        }

        .tier-card.tier-1::before {
            background: var(--primary);
        }
        .tier-card.tier-2::before {
            background: var(--secondary);
        }
        .tier-card.tier-3::before {
            background: #B8D4F0;
        }

        /* ===== 对比面板 ===== */
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .compare-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid rgba(47, 107, 184, 0.14);
            padding: 24px;
            transition: var(--transition);
        }

        .compare-card:hover {
            box-shadow: var(--shadow-hover);
        }

        .compare-card .compare-zone {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .compare-card .compare-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .compare-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }

        .compare-card ul li {
            font-size: 13px;
            color: var(--text-secondary);
            padding: 6px 0;
            border-bottom: 1px dashed rgba(47, 107, 184, 0.12);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .compare-card ul li:last-child {
            border-bottom: none;
        }

        .compare-card ul li i {
            color: var(--primary);
            font-size: 12px;
            width: 16px;
            text-align: center;
        }

        /* ===== 快速入口 ===== */
        .quick-entry-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .quick-entry {
            background: #fff;
            border-radius: 14px;
            border: 1px solid rgba(47, 107, 184, 0.14);
            padding: 20px;
            text-align: center;
            transition: var(--transition);
            display: block;
            color: var(--text-main);
        }

        .quick-entry:hover,
        .quick-entry:focus {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            color: var(--text-main);
        }

        .quick-entry .qe-icon {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .quick-entry .qe-label {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .quick-entry .qe-sub {
            font-size: 11px;
            color: var(--text-muted);
        }

        /* ===== 热门排行 ===== */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .rank-item {
            background: #fff;
            border-radius: 12px;
            border: 1px solid rgba(47, 107, 184, 0.12);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
        }

        .rank-item:hover {
            box-shadow: var(--shadow-card);
            border-color: rgba(47, 107, 184, 0.25);
        }

        .rank-item .rank-num {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            min-width: 40px;
            text-align: center;
        }

        .rank-item .rank-info {
            flex: 1;
        }

        .rank-item .rank-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .rank-item .rank-bar {
            height: 6px;
            background: var(--bg-soft);
            border-radius: 10px;
            overflow: hidden;
            margin-top: 6px;
        }

        .rank-item .rank-bar .rank-fill {
            height: 100%;
            background: var(--primary);
            border-radius: 10px;
            transition: width 0.6s ease;
        }

        .rank-item .rank-tag {
            font-size: 11px;
            font-weight: 500;
            color: var(--primary-dark);
            background: var(--bg-soft);
            border-radius: var(--radius-badge);
            padding: 4px 12px;
            white-space: nowrap;
        }

        /* ===== 评价墙 ===== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            background: #fff;
            border-radius: 14px;
            border: 1px solid rgba(47, 107, 184, 0.12);
            padding: 22px;
            transition: var(--transition);
        }

        .review-card:hover {
            box-shadow: var(--shadow-card);
        }

        .review-card .review-stars {
            color: #FFB800;
            font-size: 13px;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }

        .review-card .review-text {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
        }

        .review-card .review-author {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .review-card .review-author .avatar-dot {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--bg-soft);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
        }

        /* ===== 保障图标条 ===== */
        .assurance-bar {
            background: var(--bg-soft);
            border-radius: 12px;
            padding: 28px 30px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .assurance-item {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .assurance-item .assurance-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: #fff;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .assurance-item .assurance-text {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.5;
        }

        /* ===== CMS 资讯区 ===== */
        .cms-grid {
            display: grid;
            grid-template-columns: 7fr 4fr;
            gap: 28px;
        }

        .cms-main-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .cms-item {
            background: #fff;
            border-radius: 12px;
            border: 1px solid rgba(47, 107, 184, 0.12);
            padding: 18px 20px;
            display: flex;
            gap: 16px;
            transition: var(--transition);
        }

        .cms-item:hover {
            box-shadow: var(--shadow-card);
            border-color: rgba(47, 107, 184, 0.25);
        }

        .cms-item .cms-main-content {
            flex: 1;
        }

        .cms-item .cms-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .cms-item .cms-title a {
            color: var(--text-main);
        }

        .cms-item .cms-title a:hover {
            color: var(--primary);
        }

        .cms-item .cms-summary {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .cms-item .cms-meta {
            display: flex;
            gap: 14px;
            font-size: 11px;
            color: var(--text-muted);
            align-items: center;
            flex-wrap: wrap;
        }

        .cms-item .cms-meta .cms-cat {
            color: var(--primary-dark);
            background: var(--bg-soft);
            border-radius: var(--radius-badge);
            padding: 2px 12px;
            font-weight: 500;
        }

        .cms-sidebar {
            background: #fff;
            border-radius: 12px;
            border: 1px solid rgba(47, 107, 184, 0.12);
            padding: 22px;
            align-self: start;
        }

        .cms-sidebar .sidebar-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--bg-soft);
        }

        .cms-sidebar .sidebar-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px dashed rgba(47, 107, 184, 0.1);
            transition: var(--transition);
        }

        .cms-sidebar .sidebar-item:last-child {
            border-bottom: none;
        }

        .cms-sidebar .sidebar-item .si-dot {
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .cms-sidebar .sidebar-item a {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .cms-sidebar .sidebar-item a:hover {
            color: var(--primary);
        }

        .cms-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            font-size: 14px;
            background: var(--bg-light);
            border-radius: 12px;
            border: 1px dashed var(--border);
        }

        .cms-empty i {
            font-size: 36px;
            display: block;
            margin-bottom: 12px;
            color: var(--text-muted);
        }

        /* ===== 数据指标条 ===== */
        .data-strip {
            background: linear-gradient(135deg, #2F6BB8 0%, #285A9D 100%);
            border-radius: 16px;
            padding: 36px 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            color: #fff;
        }

        .data-strip .data-item {
            text-align: center;
            padding: 0 20px;
            border-right: 1px solid rgba(255, 255, 255, 0.18);
        }

        .data-strip .data-item:last-child {
            border-right: none;
        }

        .data-strip .data-num {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .data-strip .data-unit {
            font-size: 14px;
            font-weight: 500;
            opacity: 0.85;
            margin-left: 4px;
        }

        .data-strip .data-label {
            font-size: 13px;
            opacity: 0.8;
            margin-top: 6px;
        }

        /* ===== 专题入口 ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            display: flex;
            align-items: flex-end;
            transition: var(--transition);
        }

        .topic-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }

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

        .topic-card .topic-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(31, 42, 68, 0.15) 0%, rgba(31, 42, 68, 0.78) 100%);
            border-radius: 16px;
            padding: 22px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
        }

        .topic-card .topic-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .topic-card .topic-link {
            font-size: 13px;
            font-weight: 600;
            color: #B8D4F0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .topic-card .topic-link:hover {
            color: #fff;
        }

        /* ===== 流程步骤 ===== */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-step {
            background: #fff;
            border-radius: 14px;
            border: 1px solid rgba(47, 107, 184, 0.12);
            padding: 24px 20px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }

        .process-step:hover {
            box-shadow: var(--shadow-card);
        }

        .process-step .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }

        .process-step .step-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .process-step .step-desc {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .process-flow .step-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            color: var(--primary);
            font-size: 18px;
            z-index: 2;
        }

        .process-flow .step-arrow.sa-1 {
            left: 23%;
        }
        .process-flow .step-arrow.sa-2 {
            left: 48%;
        }
        .process-flow .step-arrow.sa-3 {
            left: 73%;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: 12px;
            border: 1px solid rgba(47, 107, 184, 0.14);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            text-align: left;
            gap: 16px;
            transition: var(--transition);
        }

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

        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            font-size: 14px;
        }

        .faq-item.is-active .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            padding: 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            background: var(--bg-light);
            border-left: 4px solid var(--primary);
            margin-left: 22px;
            border-radius: 0 0 12px 0;
        }

        .faq-item.is-active .faq-answer {
            max-height: 300px;
            padding: 16px 22px;
        }

        .faq-answer p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== 转化 CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #F7FAFD 0%, #EAF2FA 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(58, 123, 213, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .cta-text .section-title {
            margin-bottom: 16px;
        }

        .cta-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .cta-form {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid rgba(47, 107, 184, 0.14);
            box-shadow: var(--shadow-card);
            padding: 30px;
        }

        .cta-form .form-group {
            margin-bottom: 16px;
        }

        .cta-form label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            display: block;
        }

        .cta-form input,
        .cta-form textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #DCE7F3;
            border-radius: var(--radius-input);
            background: var(--bg-light);
            font-size: 14px;
            color: var(--text-main);
            transition: var(--transition);
        }

        .cta-form input:focus,
        .cta-form textarea:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(47, 107, 184, 0.16);
            background: #fff;
        }

        .cta-form textarea {
            min-height: 90px;
            resize: vertical;
        }

        .cta-form .btn {
            width: 100%;
        }

        /* ===== 底部资源入口 ===== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .resource-col {
            background: #fff;
            border-radius: 14px;
            border: 1px solid rgba(47, 107, 184, 0.12);
            padding: 24px;
        }

        .resource-col .resource-head {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--bg-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .resource-col .resource-head i {
            color: var(--primary);
            font-size: 14px;
        }

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

        .resource-col ul li {
            margin-bottom: 8px;
        }

        .resource-col ul li a {
            font-size: 13px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .resource-col ul li a:hover {
            color: var(--primary);
            gap: 12px;
        }

        .resource-col ul li a i {
            font-size: 11px;
            color: var(--text-muted);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1F2A44;
            color: #B8C4D8;
            padding: 52px 0 0;
            margin-top: 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 5fr 3fr 3fr 3fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-brand .logo-mark {
            display: flex;
            gap: 4px;
            margin-bottom: 12px;
        }

        .site-footer .footer-brand .logo-mark span {
            width: 10px;
            height: 10px;
            border-radius: 3px;
            display: inline-block;
        }

        .site-footer .footer-brand .fm1 {
            background: var(--primary);
        }
        .site-footer .footer-brand .fm2 {
            background: var(--secondary);
        }
        .site-footer .footer-brand .fm3 {
            background: #B8D4F0;
        }

        .site-footer .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #8A9BB5;
            margin-bottom: 16px;
        }

        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

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

        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }

        .site-footer .footer-col ul li a {
            font-size: 13px;
            color: #8A9BB5;
            transition: var(--transition);
        }

        .site-footer .footer-col ul li a:hover,
        .site-footer .footer-col ul li a:focus {
            color: var(--secondary);
        }

        .site-footer .footer-bottom {
            padding: 18px 0;
            text-align: center;
            font-size: 12px;
            color: #5A6B85;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .grid-3,
            .tier-grid,
            .compare-grid,
            .review-grid,
            .topic-grid,
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .data-strip .data-item:nth-child(2) {
                border-right: none;
            }

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

            .process-flow {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .process-flow .step-arrow {
                display: none;
            }

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

            .cta-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

        @media (max-width: 768px) {
            .section-block {
                padding: 44px 0;
            }

            .section-title {
                font-size: 24px;
            }

            .hero-title {
                font-size: 30px;
            }

            .site-header .container-main {
                flex-wrap: nowrap;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 24px;
                gap: 14px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 24px rgba(31, 42, 68, 0.1);
            }

            .main-nav.is-open {
                display: flex;
            }

            .main-nav a {
                font-size: 15px;
                padding: 8px 0;
            }

            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                gap: 6px;
                font-size: 13px;
            }

            .nav-cta {
                gap: 8px;
            }

            .nav-cta .status-badge {
                display: none;
            }

            .hero-section {
                padding: 48px 0 56px;
            }

            .hero-actions {
                flex-direction: column;
            }

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

            .grid-3,
            .tier-grid,
            .compare-grid,
            .review-grid,
            .topic-grid,
            .resource-grid {
                grid-template-columns: 1fr;
            }

            .quick-entry-grid {
                grid-template-columns: 1fr;
            }

            .data-strip {
                grid-template-columns: 1fr;
                gap: 14px;
                padding: 28px 24px;
            }

            .data-strip .data-item {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.15);
                padding-bottom: 14px;
            }

            .data-strip .data-item:last-child {
                border-bottom: none;
                padding-bottom: 0;
            }

            .assurance-bar {
                grid-template-columns: 1fr;
                gap: 14px;
                padding: 20px;
            }

            .process-flow {
                grid-template-columns: 1fr;
            }

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

            .compare-card,
            .tier-card,
            .review-card,
            .resource-col,
            .topic-card {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .container-main {
                padding: 0 16px;
            }

            .section-title {
                font-size: 21px;
            }

            .hero-title {
                font-size: 26px;
            }

            .section-block {
                padding: 36px 0;
            }

            .cta-form {
                padding: 20px;
            }

            .btn-lg {
                padding: 12px 24px;
                font-size: 14px;
            }

            .brand-logo {
                font-size: 14px;
            }

            .brand-logo .logo-mark span {
                width: 8px;
                height: 8px;
            }
        }

/* roulang page: article */
:root {
            --primary: #3A7BD5;
            --primary-dark: #2F6BB8;
            --secondary: #7FB2E5;
            --bg-soft: #EAF2FA;
            --bg-light: #F7FAFD;
            --bg-body: #F9FBFE;
            --text-main: #1F2A44;
            --text-secondary: #5A6B85;
            --text-muted: #8AA0B8;
            --border: rgba(47, 107, 184, 0.18);
            --shadow-card: 0 6px 18px rgba(30, 90, 160, 0.08);
            --shadow-hover: 0 12px 28px rgba(30, 90, 160, 0.16);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 50px;
            --transition: all 0.25s ease;
            --section-padding: 56px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            font-size: 15px;
            font-weight: 400;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-dark);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-block {
            padding: var(--section-padding);
            position: relative;
        }
        .section-block--alt {
            background: var(--bg-light);
        }
        .section-block--light {
            background: var(--bg-soft);
        }
        .section-block--white {
            background: #fff;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-soft);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .section-label .dot {
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
            display: inline-block;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 780px;
            margin-bottom: 32px;
        }
        .text-center {
            text-align: center;
        }
        .text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header .container-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            padding-bottom: 14px;
            gap: 20px;
            flex-wrap: wrap;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .brand-logo:hover,
        .brand-logo:focus {
            color: var(--primary-dark);
        }
        .brand-logo .logo-mark {
            display: flex;
            gap: 4px;
            align-items: center;
        }
        .brand-logo .logo-mark span {
            width: 10px;
            height: 10px;
            border-radius: 3px;
            display: inline-block;
        }
        .brand-logo .logo-mark .lm1 {
            background: var(--primary);
        }
        .brand-logo .logo-mark .lm2 {
            background: var(--secondary);
        }
        .brand-logo .logo-mark .lm3 {
            background: #B8D4F0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 2px;
            transition: var(--transition);
        }
        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--primary);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary-dark);
            background: var(--bg-soft);
            border-radius: var(--radius-badge);
            padding: 6px 14px;
            white-space: nowrap;
        }
        .pulse-dot {
            width: 7px;
            height: 7px;
            background: #27AE60;
            border-radius: 50%;
            display: inline-block;
            animation: pulse 1.8s ease-in-out infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.55; transform: scale(1.3); }
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: none;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-outline:hover,
        .btn-outline:focus {
            background: var(--bg-soft);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: var(--bg-soft);
            color: var(--primary-dark);
            border: 1px solid var(--border);
        }
        .btn-secondary:hover,
        .btn-secondary:focus {
            background: #D6E6F7;
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 9px 18px;
            font-size: 13px;
            border-radius: 8px;
        }
        .btn-block {
            display: flex;
            width: 100%;
        }
        .nav-toggle {
            display: none;
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: 8px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: var(--primary-dark);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: #D6E6F7;
        }
        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--primary-dark);
        }
        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }
        /* ===== 文章页 ===== */
        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 36px;
            align-items: start;
        }
        .article-main-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px 44px;
            transition: var(--transition);
        }
        .article-main-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-soft);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            margin-bottom: 18px;
        }
        .article-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: -0.015em;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px 20px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 16px 0 24px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 28px;
        }
        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .article-meta-item i {
            color: var(--primary);
            font-size: 13px;
        }
        .article-meta-item .meta-badge {
            background: var(--bg-soft);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            font-size: 12px;
        }
        .article-body {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-main);
            word-break: break-word;
        }
        .article-body p {
            margin-bottom: 18px;
        }
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin: 28px 0 14px;
        }
        .article-body h2 {
            font-size: 22px;
        }
        .article-body h3 {
            font-size: 19px;
        }
        .article-body h4 {
            font-size: 17px;
        }
        .article-body ul,
        .article-body ol {
            margin: 16px 0 18px 22px;
            padding-left: 18px;
        }
        .article-body ul {
            list-style: disc;
        }
        .article-body ol {
            list-style: decimal;
        }
        .article-body li {
            margin-bottom: 10px;
            line-height: 1.8;
        }
        .article-body blockquote {
            background: var(--bg-light);
            border-left: 4px solid var(--primary);
            border-radius: 8px;
            padding: 18px 22px;
            margin: 22px 0;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.85;
        }
        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 20px 0;
            box-shadow: var(--shadow-card);
        }
        .article-body a {
            color: var(--primary);
            font-weight: 500;
            border-bottom: 1px dashed var(--primary);
        }
        .article-body a:hover {
            color: var(--primary-dark);
            border-bottom-color: var(--primary-dark);
        }
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-secondary);
        }
        .article-not-found i {
            font-size: 48px;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: block;
        }
        .article-not-found p {
            font-size: 16px;
            margin-bottom: 24px;
        }
        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 100px;
        }
        .sidebar-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 22px;
            transition: var(--transition);
        }
        .sidebar-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .sidebar-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--bg-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card-title i {
            color: var(--primary);
            font-size: 15px;
        }
        .sidebar-subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-subscribe-form input {
            height: 42px;
            background: var(--bg-light);
            border: 1px solid #DCE7F3;
            border-radius: var(--radius-input);
            padding: 0 14px;
            font-size: 14px;
            color: var(--text-main);
            transition: var(--transition);
        }
        .sidebar-subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 184, 0.16);
            outline: none;
            background: #fff;
        }
        .sidebar-rank-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-rank-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
        }
        .sidebar-rank-list li:last-child {
            border-bottom: none;
        }
        .sidebar-rank-list .rank-num {
            width: 26px;
            height: 26px;
            border-radius: 6px;
            background: var(--bg-soft);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .sidebar-rank-list .rank-text {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            line-height: 1.5;
            flex: 1;
        }
        .sidebar-category-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-category-links li {
            margin-bottom: 8px;
        }
        .sidebar-category-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 8px 12px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .sidebar-category-links a:hover {
            background: var(--bg-soft);
            color: var(--primary-dark);
        }
        .sidebar-category-links a i {
            font-size: 12px;
            color: var(--primary);
        }
        /* ===== 相关推荐 ===== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .related-card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: 0;
            transition: var(--transition);
        }
        .related-card:hover .related-card-img {
            transform: scale(1.04);
        }
        .related-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .related-card-tag {
            font-size: 11px;
            font-weight: 600;
            color: var(--primary-dark);
            background: var(--bg-soft);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            align-self: flex-start;
        }
        .related-card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover .related-card-title {
            color: var(--primary);
        }
        .related-card-excerpt {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        /* ===== 上下篇导航 ===== */
        .prev-next-nav {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 16px;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 16px 22px;
        }
        .prev-next-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: var(--transition);
            padding: 8px 12px;
            border-radius: 8px;
        }
        .prev-next-link:hover {
            background: var(--bg-soft);
            color: var(--primary-dark);
        }
        .prev-next-link.prev-link {
            justify-content: flex-start;
        }
        .prev-next-link.next-link {
            justify-content: flex-end;
            text-align: right;
        }
        .prev-next-link i {
            font-size: 14px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .prev-next-center {
            text-align: center;
        }
        .btn-back-list {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--bg-soft);
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-back-list:hover {
            background: #D6E6F7;
            color: var(--primary-dark);
        }
        /* ===== 底部CTA ===== */
        .cta-bar {
            background: linear-gradient(135deg, #2F6BB8, #2F6BB8);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
            color: #fff;
            box-shadow: var(--shadow-card);
        }
        .cta-bar-content {
            flex: 1;
            min-width: 260px;
        }
        .cta-bar-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
            color: #fff;
        }
        .cta-bar-text {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
        }
        .cta-bar .btn {
            background: #fff;
            color: var(--primary-dark);
            font-weight: 700;
            flex-shrink: 0;
        }
        .cta-bar .btn:hover {
            background: var(--bg-soft);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, 0.15);
        }
        /* ===== 页脚 ===== */
        .site-footer {
            background: #1F2A44;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
        }
        .footer-brand .logo-mark {
            display: flex;
            gap: 5px;
            margin-bottom: 14px;
        }
        .footer-brand .logo-mark span {
            width: 11px;
            height: 11px;
            border-radius: 3px;
            display: inline-block;
        }
        .footer-brand .logo-mark .fm1 {
            background: var(--primary);
        }
        .footer-brand .logo-mark .fm2 {
            background: var(--secondary);
        }
        .footer-brand .logo-mark .fm3 {
            background: #8AB8E0;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 0;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .sidebar-card {
                flex: 1 1 240px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .prev-next-nav {
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 14px 16px;
            }
            .prev-next-link.next-link {
                justify-content: flex-start;
                text-align: left;
            }
            .prev-next-center {
                order: -1;
            }
        }
        @media (max-width: 767px) {
            :root {
                --section-padding: 36px 0;
            }
            .container-main {
                padding: 0 16px;
            }
            .section-title {
                font-size: 22px;
            }
            .section-subtitle {
                font-size: 14px;
            }
            .site-header .container-main {
                padding-top: 10px;
                padding-bottom: 10px;
            }
            .main-nav {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                gap: 0;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 10px 20px rgba(30, 90, 160, 0.12);
                padding: 10px 20px;
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 4px;
                font-size: 15px;
                border-bottom: 1px dashed var(--border);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a.active::after {
                bottom: 6px;
                width: 40px;
            }
            .nav-toggle {
                display: flex;
            }
            .status-badge {
                display: none;
            }
            .nav-cta {
                gap: 8px;
            }
            .nav-cta .btn {
                padding: 8px 14px;
                font-size: 12px;
            }
            .brand-logo {
                font-size: 14px;
            }
            .brand-logo .logo-mark span {
                width: 8px;
                height: 8px;
            }
            .article-main-card {
                padding: 24px 18px;
            }
            .article-title {
                font-size: 24px;
            }
            .article-meta {
                gap: 8px 14px;
                font-size: 12px;
            }
            .article-body {
                font-size: 15px;
            }
            .article-body h2 {
                font-size: 19px;
            }
            .article-body h3 {
                font-size: 17px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                flex-direction: column;
            }
            .sidebar-card {
                flex: none;
            }
            .cta-bar {
                padding: 24px 20px;
                flex-direction: column;
                text-align: center;
            }
            .cta-bar .btn {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                font-size: 11px;
            }
        }
        @media (max-width: 520px) {
            .main-nav {
                top: 56px;
            }
            .article-main-card {
                padding: 20px 14px;
            }
            .article-title {
                font-size: 21px;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .related-card-img {
                height: 140px;
            }
            .prev-next-nav {
                padding: 12px;
            }
            .btn-back-list {
                font-size: 12px;
                padding: 7px 14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #3A7BD5;
            --primary-dark: #2F6BB8;
            --secondary: #7FB2E5;
            --bg-soft: #EAF2FA;
            --bg-light: #F7FAFD;
            --bg-body: #F9FBFE;
            --text-main: #1F2A44;
            --text-secondary: #5A6B85;
            --text-muted: #8AA0B8;
            --border: rgba(47, 107, 184, 0.18);
            --shadow-card: 0 6px 18px rgba(30, 90, 160, 0.08);
            --shadow-hover: 0 12px 28px rgba(30, 90, 160, 0.16);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 50px;
            --transition: all 0.25s ease;
            --section-padding: 68px 0;
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            font-size: 15px;
            font-weight: 400;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

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

        input,
        textarea {
            font-family: inherit;
        }

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

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

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

        .section-block--soft {
            background: var(--bg-soft);
        }

        .section-block--white {
            background: #fff;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-soft);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-label .dot {
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
            display: inline-block;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 780px;
            margin-bottom: 32px;
        }

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

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

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .site-header .container-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            padding-bottom: 14px;
            gap: 20px;
            flex-wrap: wrap;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .brand-logo:hover,
        .brand-logo:focus {
            color: var(--primary-dark);
        }

        .brand-logo .logo-mark {
            display: flex;
            gap: 4px;
            align-items: center;
        }

        .brand-logo .logo-mark span {
            width: 10px;
            height: 10px;
            border-radius: 3px;
            display: inline-block;
        }

        .brand-logo .logo-mark .lm1 {
            background: var(--primary);
        }

        .brand-logo .logo-mark .lm2 {
            background: var(--secondary);
        }

        .brand-logo .logo-mark .lm3 {
            background: #B8D4F0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 2px;
            transition: var(--transition);
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--primary);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary-dark);
            background: var(--bg-soft);
            border-radius: var(--radius-badge);
            padding: 6px 14px;
            white-space: nowrap;
        }

        .pulse-dot {
            width: 6px;
            height: 6px;
            background: #2ecc71;
            border-radius: 50%;
            display: inline-block;
            animation: pulse 1.8s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            border: 1px solid transparent;
            transition: var(--transition);
            line-height: 1.5;
            text-align: center;
            cursor: pointer;
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-secondary {
            background: var(--bg-soft);
            color: var(--primary-dark);
            border-color: var(--border);
        }

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: #dbeafe;
            border-color: var(--secondary);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        .nav-toggle {
            display: none;
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 8px 12px;
            color: var(--primary-dark);
            font-size: 16px;
        }

        /* ===== 面包屑 ===== */
        .page-breadcrumb {
            padding: 20px 0 0;
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }

        .page-breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }

        .page-breadcrumb a:hover {
            color: var(--primary-dark);
        }

        .page-breadcrumb .sep {
            color: var(--text-muted);
            font-size: 10px;
        }

        .page-breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ===== H1区 ===== */
        .cat-hero {
            padding: 4px 0 32px;
        }

        .cat-hero h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-main);
            margin: 0 0 10px;
            letter-spacing: -0.02em;
        }

        .cat-hero .h1-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin: 0;
        }

        /* ===== 介绍卡片 ===== */
        .intro-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 28px 32px;
            border-left: 4px solid var(--primary);
            transition: var(--transition);
        }

        .intro-card:hover {
            box-shadow: var(--shadow-hover);
        }

        .intro-card h2 {
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--text-main);
        }

        .intro-card p {
            margin: 0;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.85;
        }

        /* ===== 卡片主体 ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .cat-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .cat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(47, 107, 184, 0.3);
        }

        .cat-card .card-img {
            position: relative;
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: 12px 12px 0 0;
        }

        .cat-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px 12px 0 0;
            transition: var(--transition);
        }

        .cat-card:hover .card-img img {
            transform: scale(1.05);
        }

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

        .badge-tag {
            display: inline-flex;
            align-items: center;
            background: var(--bg-soft);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            width: fit-content;
            margin-bottom: 12px;
        }

        .cat-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--text-main);
            line-height: 1.45;
        }

        .cat-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0 0 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            text-overflow: ellipsis;
            flex: 1;
        }

        .cat-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

        .cat-card .card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .cat-card .card-link:hover {
            color: var(--primary-dark);
        }

        /* ===== 数据条 ===== */
        .data-strip {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #285A9D 100%);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            box-shadow: var(--shadow-card);
        }

        .data-item {
            text-align: center;
            padding: 8px 16px;
            border-right: 1px solid rgba(255, 255, 255, 0.15);
        }

        .data-item:last-child {
            border-right: none;
        }

        .data-number {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .data-unit {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            margin-left: 2px;
        }

        .data-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        /* ===== 专题入口 ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 200px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            border: 1px solid var(--border);
        }

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

        .topic-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
            z-index: 1;
        }

        .topic-card .topic-overlay {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 24px 20px;
            background: linear-gradient(180deg, transparent 0%, rgba(31, 42, 68, 0.75) 60%, rgba(31, 42, 68, 0.88) 100%);
            border-radius: 0 0 var(--radius-card) var(--radius-card);
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .topic-card p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 10px;
            line-height: 1.6;
        }

        .topic-card .topic-link {
            font-size: 13px;
            font-weight: 600;
            color: #7FB2E5;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .topic-card .topic-link:hover {
            color: #fff;
        }

        /* ===== 资讯列表 ===== */
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 14px;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 16px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(47, 107, 184, 0.3);
        }

        .news-item .news-time {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-dark);
            background: var(--bg-soft);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            white-space: nowrap;
            min-width: 80px;
            text-align: center;
        }

        .news-item .news-content {
            flex: 1;
            min-width: 0;
        }

        .news-item .news-content h4 {
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--text-main);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .news-item .news-content p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-item .news-cat {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
            padding-left: 8px;
            border-left: 1px solid var(--border);
        }

        .news-empty {
            text-align: center;
            padding: 48px 20px;
            background: #fff;
            border: 1px dashed var(--border);
            border-radius: var(--radius-card);
            color: var(--text-muted);
            font-size: 14px;
        }

        .news-empty i {
            font-size: 32px;
            margin-bottom: 12px;
            color: var(--secondary);
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.open {
            border-left: 4px solid var(--primary);
            background: var(--bg-light);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            background: transparent;
            border: none;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            cursor: pointer;
            transition: var(--transition);
        }

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

        .faq-question .faq-arrow {
            font-size: 12px;
            color: var(--text-muted);
            transition: transform 0.25s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.25s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            margin: 0;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-banner {
            background: var(--bg-soft);
            border-radius: var(--radius-card);
            padding: 44px 36px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
        }

        .cta-banner h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 10px;
        }

        .cta-banner p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1F2A44;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            margin-top: 40px;
        }

        .site-footer .container-main {
            padding-top: 0;
            padding-bottom: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand .logo-mark {
            display: flex;
            gap: 4px;
            margin-bottom: 14px;
        }

        .footer-brand .logo-mark span {
            width: 10px;
            height: 10px;
            border-radius: 3px;
            display: inline-block;
        }

        .footer-brand .logo-mark .fm1 {
            background: var(--primary);
        }

        .footer-brand .logo-mark .fm2 {
            background: var(--secondary);
        }

        .footer-brand .logo-mark .fm3 {
            background: #B8D4F0;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
        }

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

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

        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
        }

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

        .footer-bottom {
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            padding-top: 24px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .data-item:nth-child(2) {
                border-right: none;
            }

            .data-item {
                padding: 12px 8px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .site-header .container-main {
                flex-wrap: nowrap;
            }

            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .status-badge {
                display: none;
            }

            .cat-hero h1 {
                font-size: 28px;
            }

            .section-title {
                font-size: 22px;
            }

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

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

            .news-item {
                flex-wrap: wrap;
                gap: 10px;
            }

            .news-item .news-time {
                min-width: auto;
            }

            .data-strip {
                grid-template-columns: 1fr 1fr;
            }

            .cta-banner {
                padding: 32px 20px;
            }

            .intro-card {
                padding: 20px 22px;
            }

            .section-block {
                padding: 44px 0;
            }
        }

        @media (max-width: 520px) {
            .container-main {
                padding: 0 16px;
            }

            .cat-hero h1 {
                font-size: 24px;
            }

            .data-strip {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .data-item {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                padding: 8px;
            }

            .data-item:last-child {
                border-bottom: none;
            }

            .data-number {
                font-size: 26px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .btn {
                padding: 10px 18px;
                font-size: 13px;
            }

            .news-item {
                padding: 12px 14px;
            }

            .news-item .news-content h4 {
                white-space: normal;
            }

            .cta-banner h2 {
                font-size: 20px;
            }
        }