/* roulang page: index */
:root {
      --brand-primary: #006699;
      --brand-primary-hover: #004d73;
      --brand-accent: #059669;
      --brand-warning: #D97706;
      --bg-canvas: #F4F6F9;
      --bg-card: #FFFFFF;
      --bg-dark: #0F172A;
      --bg-dark-card: #1E293B;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --border-dark: #334155;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-full: 9999px;
      --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.05), 0 1px 2px 0 rgba(15, 23, 42, 0.03);
      --shadow-dock: 0 20px 25px -5px rgba(15, 23, 42, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.06);
      --shadow-hover: 0 20px 25px -5px rgba(0, 102, 153, 0.15), 0 10px 10px -5px rgba(0, 102, 153, 0.05);
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", sans-serif;
      background-color: var(--bg-canvas);
      color: var(--text-body);
      line-height: 1.75;
      font-size: 1rem;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    h1, h2, h3, h4, h5, h6 {
      color: var(--text-main);
      line-height: 1.35;
      font-weight: 700;
    }

    .font-mono {
      font-family: "JetBrains Mono", SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    }

    /* 顶部通告条 */
    .top-notice-bar {
      background-color: #0b1120;
      color: #94A3B8;
      font-size: 0.8125rem;
      padding: 0.45rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-notice-bar a {
      color: #CBD5E1;
      text-decoration: none;
    }

    /* 浮动 Dock 导航栏 */
    .floating-dock-wrapper {
      position: sticky;
      top: 1rem;
      z-index: 1040;
      width: 100%;
      pointer-events: none;
    }
    .floating-dock {
      pointer-events: auto;
      max-width: 1160px;
      margin: 0 auto;
      padding: 0.65rem 1.4rem;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid rgba(226, 232, 240, 0.85);
      border-radius: var(--radius-full);
      box-shadow: var(--shadow-dock);
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: all 0.3s ease;
    }
    .dock-logo {
      display: flex;
      align-items: center;
      gap: 0.65rem;
      font-weight: 800;
      font-size: 1.15rem;
      color: var(--brand-primary);
      text-decoration: none;
      letter-spacing: -0.02em;
    }
    .dock-logo-icon {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, #006699 0%, #059669 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
    }
    .dock-nav {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 1.5rem;
    }
    .dock-nav a {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-body);
      text-decoration: none;
      padding: 0.4rem 0.2rem;
      position: relative;
      transition: color 0.2s ease;
    }
    .dock-nav a:hover {
      color: var(--brand-primary);
    }
    .dock-cta-btn {
      background-color: var(--brand-primary);
      color: #fff !important;
      font-weight: 600;
      font-size: 0.875rem;
      padding: 0.55rem 1.25rem;
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: 0 4px 12px rgba(0, 102, 153, 0.25);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }
    .dock-cta-btn:hover {
      background-color: var(--brand-primary-hover);
      box-shadow: 0 6px 16px rgba(0, 102, 153, 0.35);
      transform: translateY(-1px);
    }

    /* 板块通用架构 */
    .content-section {
      padding: 5.5rem 0;
      position: relative;
    }
    .section-alt {
      background-color: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #E2E8F0;
    }
    .section-dark h2, .section-dark h3, .section-dark h4 {
      color: #FFFFFF;
    }
    .section-header {
      margin-bottom: 3.5rem;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--brand-primary);
      background: rgba(0, 102, 153, 0.08);
      padding: 0.3rem 0.85rem;
      border-radius: var(--radius-full);
      margin-bottom: 0.85rem;
      letter-spacing: 0.05em;
      text-transform: uppercase;
    }
    .section-dark .section-tag {
      background: rgba(5, 150, 105, 0.15);
      color: #34D399;
    }

    /* 卡片体系 */
    .pro-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem;
      height: 100%;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
      display: flex;
      flex-direction: column;
    }
    .pro-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
      border-color: rgba(0, 102, 153, 0.35);
    }
    .pro-card-dark {
      background-color: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      color: #CBD5E1;
    }
    .pro-card-dark:hover {
      border-color: rgba(5, 150, 105, 0.5);
      box-shadow: 0 16px 28px rgba(0, 0, 0, 0.4);
    }

    /* Hero 分栏风格 */
    .hero-wrapper {
      padding: 4rem 0 5.5rem;
      background: linear-gradient(180deg, #F8FAFC 0%, #EEF2F6 100%);
      border-bottom: 1px solid var(--border-color);
    }
    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 800;
      letter-spacing: -0.03em;
      margin-bottom: 1.25rem;
      color: var(--text-main);
    }
    .hero-lead {
      font-size: 1.125rem;
      line-height: 1.8;
      color: var(--text-body);
      margin-bottom: 2rem;
    }
    .hero-magazine-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.08);
    }
    .hero-img-box {
      position: relative;
      background: #000;
      height: 250px;
      overflow: hidden;
    }
    .hero-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.9;
    }

    /* 协议徽标 */
    .protocol-badge {
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.25rem 0.6rem;
      border-radius: 4px;
      background: #E2E8F0;
      color: #1E293B;
      display: inline-block;
      margin-right: 0.4rem;
      margin-bottom: 0.4rem;
    }

    /* 指标仪表盘 */
    .metric-number {
      font-size: 3rem;
      font-weight: 800;
      color: var(--brand-primary);
      line-height: 1;
      margin-bottom: 0.5rem;
    }
    .section-dark .metric-number {
      color: #10B981;
    }

    /* 表单组件 */
    .form-control-custom {
      background-color: #0F172A;
      border: 1px solid var(--border-dark);
      color: #FFFFFF;
      padding: 0.8rem 1.1rem;
      border-radius: var(--radius-sm);
    }
    .form-control-custom:focus {
      background-color: #0F172A;
      border-color: var(--brand-primary);
      color: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(0, 102, 153, 0.3);
    }

    /* 页脚 */
    footer {
      background-color: #0B1120;
      color: #94A3B8;
      padding: 4.5rem 0 2.5rem;
      font-size: 0.875rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    footer a {
      color: #CBD5E1;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    footer a:hover {
      color: #FFFFFF;
    }

    @media (max-width: 991px) {
      .hero-h1 {
        font-size: 2.15rem;
      }
      .dock-nav {
        display: none;
      }
      .floating-dock {
        margin: 0 1rem;
      }
    }