/* roulang page: index */
:root {
      --primary-color: #0F52BA;
      --accent-color: #10B981;
      --warning-color: #F59E0B;
      --bg-dark: #0B132B;
      --bg-card-dark: #1C2541;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #475569;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      background-color: #FFFFFF;
      color: var(--text-main);
      line-height: 1.75;
      overflow-x: hidden;
    }
    .custom-container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .badge-soft {
      background: rgba(15, 82, 186, 0.08);
      color: #0F52BA;
      font-weight: 600;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      font-size: 0.8125rem;
    }
    .card-hover {
      transition: all 0.25s ease-in-out;
    }
    .card-hover:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 24px -10px rgba(15, 82, 186, 0.12);
    }
    details summary::-webkit-details-marker {
      display: none;
    }