/* roulang page: index */
:root {
      --primary: #059669;
      --primary-dark: #047857;
      --secondary: #0284c7;
      --accent: #f97316;
      --dark-navy: #0b132b;
      --slate-bg: #f8fafc;
      --border-color: #e2e8f0;
    }
    html {
      scroll-behavior: smooth;
      scroll-padding-top: 88px;
    }
    body {
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: #1e293b;
      background-color: var(--slate-bg);
      overflow-x: hidden;
      line-height: 1.7;
    }
    .brand-gradient {
      background: linear-gradient(135deg, #059669 0%, #0284c7 100%);
    }
    .brand-gradient-text {
      background: linear-gradient(135deg, #10b981 0%, #38bdf8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .glow-shadow {
      box-shadow: 0 10px 25px -5px rgba(5, 150, 105, 0.12), 0 8px 10px -6px rgba(2, 132, 199, 0.08);
    }
    .glow-shadow:hover {
      box-shadow: 0 20px 30px -10px rgba(5, 150, 105, 0.22);
      transform: translateY(-4px);
    }
    .card-transition {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .data-pill {
      background: rgba(16, 185, 129, 0.1);
      border: 1px solid rgba(16, 185, 129, 0.3);
      color: #047857;
    }
    .dark-data-pill {
      background: rgba(56, 189, 248, 0.12);
      border: 1px solid rgba(56, 189, 248, 0.35);
      color: #7dd3fc;
    }
    details summary::-webkit-details-marker {
      display: none;
    }