/* roulang page: index */
:root {
      --primary: #0D3B2E;
      --primary-light: #165b47;
      --accent: #10B981;
      --accent-hover: #059669;
      --dark: #1E293B;
      --gray-bg: #F8FAFC;
      --gray-alt: #F1F5F9;
      --text: #334155;
      --text-muted: #64748B;
      --white: #FFFFFF;
      --warning: #D97706;
      --border: rgba(226, 232, 240, 0.9);
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 20px -2px rgba(13, 59, 46, 0.08);
      --shadow-lg: 0 12px 30px -4px rgba(13, 59, 46, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --radius-pill: 9999px;
      --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    }

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

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      color: var(--text);
      background-color: var(--white);
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

    button, input {
      font: inherit;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部双行导航系统 */
    .utility-bar {
      background-color: var(--primary);
      color: #A7F3D0;
      font-size: 0.8125rem;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .utility-flex {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .utility-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .main-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      transition: all 0.3s ease;
    }
    .header-wrap {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .brand-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--white);
      font-size: 1.1rem;
      font-weight: 800;
    }
    .nav-list {
      display: flex;
      list-style: none;
      gap: 28px;
      align-items: center;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--dark);
    }
    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.9375rem;
      font-weight: 600;
      border-radius: var(--radius-pill);
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.25s ease;
      text-align: center;
    }
    .btn-primary {
      background-color: var(--accent);
      color: var(--white);
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.28);
    }
    .btn-primary:hover {
      background-color: var(--accent-hover);
      transform: translateY(-1px);
    }
    .btn-dark {
      background-color: var(--primary);
      color: var(--white);
    }
    .btn-dark:hover {
      background-color: var(--primary-light);
      transform: translateY(-1px);
    }
    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background: transparent;
    }
    .btn-outline:hover {
      background-color: var(--primary);
      color: var(--white);
    }

    /* 通用板块与排版 */
    section {
      padding: 90px 0;
      position: relative;
    }
    .bg-light { background-color: var(--gray-bg); }
    .bg-alt { background-color: var(--gray-alt); }
    .bg-dark { 
      background-color: var(--primary); 
      color: var(--white); 
    }
    .section-head {
      margin-bottom: 50px;
      max-width: 780px;
    }
    .section-head.center {
      text-align: center;
      margin-left: auto;
      margin-right: auto;
    }
    .tag-badge {
      display: inline-block;
      padding: 4px 12px;
      background: rgba(16, 185, 129, 0.12);
      color: var(--accent);
      border-radius: var(--radius-pill);
      font-size: 0.8125rem;
      font-weight: 600;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .tag-badge.light {
      background: rgba(255, 255, 255, 0.15);
      color: #A7F3D0;
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      color: var(--dark);
      letter-spacing: -0.5px;
    }
    .bg-dark .section-title {
      color: var(--white);
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .bg-dark .section-desc {
      color: #CBD5E1;
    }

    /* 1. 地图/本地感首屏 Hero (蓝图执行) */
    .hero-section {
      padding: 60px 0 90px;
      background: linear-gradient(180deg, #F0FDF4 0%, #FFFFFF 100%);
      border-bottom: 1px solid var(--border);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 3.1rem;
      font-weight: 800;
      line-height: 1.18;
      color: var(--primary);
      margin-bottom: 22px;
      letter-spacing: -1px;
    }
    .hero-lead {
      font-size: 1.125rem;
      color: var(--text);
      line-height: 1.75;
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 36px;
    }
    .local-node-box {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 18px 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      gap: 24px;
      align-items: center;
    }
    .node-stat {
      border-left: 3px solid var(--accent);
      padding-left: 14px;
    }
    .node-num {
      font-family: var(--font-mono);
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--dark);
    }
    .node-label {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }
    .hero-media-wrap {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 4px solid var(--white);
    }
    .hero-media-wrap img {
      width: 100%;
      height: 480px;
      object-fit: cover;
    }
    .hero-float-card {
      position: absolute;
      bottom: 24px;
      left: 24px;
      right: 24px;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(8px);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.6);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 2. 内容日历区 */
    .calendar-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .cal-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      position: relative;
      transition: transform 0.2s ease;
    }
    .cal-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .cal-date {
      font-family: var(--font-mono);
      font-weight: 700;
      color: var(--accent);
      font-size: 1.15rem;
      margin-bottom: 8px;
    }
    .cal-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }
    .cal-text {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 热门专题区 */
    .topic-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .topic-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .topic-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }
    .topic-thumb {
      height: 200px;
      width: 100%;
      object-fit: cover;
    }
    .topic-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .topic-badge {
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 8px;
    }
    .topic-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .topic-excerpt {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 18px;
      flex-grow: 1;
    }

    /* 4. 观点解读区 */
    .insight-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .split-quote {
      border-left: 4px solid var(--accent);
      padding: 16px 24px;
      background: var(--white);
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      margin-bottom: 24px;
    }
    .split-quote p {
      font-size: 1.15rem;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .split-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .split-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
    }
    .split-icon {
      background: #D1FAE5;
      color: var(--accent-hover);
      min-width: 28px;
      height: 28px;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.875rem;
    }

    /* 5. 财务深度资讯区 */
    .news-stack {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--white);
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
    }
    .news-time {
      font-family: var(--font-mono);
      font-size: 0.8125rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-head {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 12px;
    }
    .news-brief {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 6. 媒体精选与学术引用 */
    .media-card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .media-box {
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      background: var(--white);
    }
    .media-source {
      font-weight: 700;
      color: var(--primary);
      font-size: 0.95rem;
      margin-bottom: 8px;
    }

    /* 7. 数据分析区 */
    .analytics-panel {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .stat-metric-card {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      text-align: center;
    }
    .stat-metric-value {
      font-family: var(--font-mono);
      font-size: 2.75rem;
      font-weight: 800;
      color: var(--accent);
      margin-bottom: 8px;
      line-height: 1;
    }
    .stat-metric-title {
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--white);
      margin-bottom: 6px;
    }
    .stat-metric-sub {
      font-size: 0.8125rem;
      color: #94A3B8;
    }

    /* 8. 适用场景矩阵 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .scenario-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }
    .scenario-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .scenario-point {
      font-size: 0.9rem;
      color: var(--text);
      margin-bottom: 14px;
      line-height: 1.6;
    }

    /* 9. 参数速览 */
    .spec-table-wrap {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow-x: auto;
    }
    .spec-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.9375rem;
    }
    .spec-table th, .spec-table td {
      padding: 16px 24px;
      border-bottom: 1px solid var(--border);
    }
    .spec-table th {
      background: var(--gray-alt);
      font-weight: 700;
      color: var(--dark);
    }
    .spec-table tr:last-child td {
      border-bottom: none;
    }

    /* 10. 真实案例反馈 */
    .feedback-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feedback-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .user-profile {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .user-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }
    .user-meta-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--dark);
    }
    .user-meta-role {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 11. 平台合规与安全保障 */
    .compliance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .compliance-item {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 22px;
      text-align: center;
    }
    .compliance-icon {
      width: 48px;
      height: 48px;
      margin: 0 auto 14px;
      background: rgba(16, 185, 129, 0.1);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-hover);
      font-size: 1.25rem;
      font-weight: bold;
    }
    .compliance-title {
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 6px;
      font-size: 1rem;
    }
    .compliance-desc {
      font-size: 0.8125rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 12. 订阅与收口通知条 */
    .subscribe-box {
      background: linear-gradient(135deg, var(--primary) 0%, #064E3B 100%);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      color: var(--white);
      text-align: center;
      box-shadow: var(--shadow-lg);
    }
    .subscribe-title {
      font-size: 2.2rem;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .subscribe-desc {
      font-size: 1.05rem;
      color: #D1FAE5;
      max-width: 680px;
      margin: 0 auto 30px;
    }
    .subscribe-form {
      display: flex;
      justify-content: center;
      gap: 12px;
      max-width: 520px;
      margin: 0 auto;
      flex-wrap: wrap;
    }
    .subscribe-input {
      flex: 1;
      min-width: 240px;
      padding: 12px 18px;
      border-radius: var(--radius-pill);
      border: 1px solid rgba(255, 255, 255, 0.3);
      background: rgba(255, 255, 255, 0.9);
      color: var(--dark);
      outline: none;
    }
    .subscribe-input:focus {
      background: var(--white);
      border-color: var(--accent);
    }

    /* 统一页脚 */
    .main-footer {
      background: #0B1F19;
      color: #94A3B8;
      font-size: 0.875rem;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr repeat(3, 1fr);
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 14px;
    }
    .footer-about-text {
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 600;
      color: var(--white);
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.8125rem;
    }
    .disclaimer-text {
      margin-bottom: 10px;
      line-height: 1.6;
      color: #64748B;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .hero-media-wrap img {
        height: 380px;
      }
      .calendar-timeline,
      .topic-grid,
      .news-stack,
      .media-card-grid,
      .analytics-panel,
      .scenario-grid,
      .feedback-grid,
      .compliance-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .utility-bar {
        display: none;
      }
      .header-wrap {
        height: 64px;
      }
      .nav-list {
        display: none;
      }
      .hero-h1 {
        font-size: 2.2rem;
      }
      section {
        padding: 56px 0;
      }
      .calendar-timeline,
      .topic-grid,
      .news-stack,
      .media-card-grid,
      .analytics-panel,
      .scenario-grid,
      .feedback-grid,
      .compliance-grid {
        grid-template-columns: 1fr;
      }
      .insight-split {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }