/* roulang page: index */
:root {
      --primary-dark: #0F2438;
      --primary-deep: #08121E;
      --accent-blue: #0066FF;
      --accent-cyan: #00B4D8;
      --text-main: #0B192C;
      --text-body: #334155;
      --text-muted: #64748B;
      --bg-base: #F8FAFC;
      --border-light: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-body);
      background-color: var(--bg-base);
      line-height: 1.75;
    }
    .custom-container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .btn-glow {
      box-shadow: 0 4px 14px 0 rgba(0, 102, 255, 0.39);
      transition: all 0.25s ease-in-out;
    }
    .btn-glow:hover {
      box-shadow: 0 6px 20px rgba(0, 102, 255, 0.5);
      transform: translateY(-2px);
    }
    .card-hover {
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 30px -10px rgba(15, 36, 56, 0.12);
      border-color: var(--accent-blue);
    }
    .process-line::after {
      content: '';
      position: absolute;
      top: 50%;
      right: -24px;
      width: 24px;
      height: 2px;
      background: #CBD5E1;
      transform: translateY(-50%);
    }
    @media (max-width: 1023px) {
      .process-line::after {
        display: none;
      }
    }
    details summary::-webkit-details-marker {
      display: none;
    }