/* roulang page: index */
:root {
      --primary: #0F766E;
      --primary-hover: #0D9488;
      --accent: #F59E0B;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --bg-page: #F8FAFC;
      --border-color: #E2E8F0;
      --shadow-soft: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-main);
      background-color: var(--bg-page);
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .custom-shadow {
      box-shadow: var(--shadow-soft);
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-shadow:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .map-grid-pattern {
      background-image: radial-gradient(rgba(15, 118, 110, 0.12) 1px, transparent 1px);
      background-size: 24px 24px;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(204, 251, 241, 0.6) 0%, rgba(248, 250, 252, 0) 70%);
    }
    /* 自定义手风琴动画 */
    details summary::-webkit-details-marker { display: none; }
    details[open] summary svg { transform: rotate(180deg); }