/* roulang page: index */
:root {
      --brand-main: #0D3B4C;
      --brand-accent: #00A878;
      --brand-deep: #061E26;
      --brand-warning: #F26419;
      --bg-light: #F6F8F9;
      --text-main: #111D24;
      --text-body: #384953;
      --text-muted: #70838D;
      --border-color: #E2E8F0;
      --radius-std: 8px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-body);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    .custom-container {
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    .card-shadow {
      box-shadow: 0 2px 8px rgba(13, 59, 76, 0.06);
      transition: all 0.25s ease-in-out;
    }
    .card-shadow:hover {
      box-shadow: 0 12px 24px rgba(13, 59, 76, 0.12);
      transform: translateY(-4px);
    }
    details summary::-webkit-details-marker {
      display: none;
    }
    .pulse-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      background-color: #00A878;
      border-radius: 50%;
      box-shadow: 0 0 0 0 rgba(0, 168, 120, 0.7);
      animation: pulseAnimation 2s infinite;
    }
    @keyframes pulseAnimation {
      0% { box-shadow: 0 0 0 0 rgba(0, 168, 120, 0.7); }
      70% { box-shadow: 0 0 0 8px rgba(0, 168, 120, 0); }
      100% { box-shadow: 0 0 0 0 rgba(0, 168, 120, 0); }
    }