/* roulang page: index */
:root {
      --primary-color: #00D287;
      --primary-deep: #0B3B2C;
      --accent-color: #FF6B00;
      --bg-base: #F7F9FA;
      --card-border: rgba(11, 59, 44, 0.08);
      --card-shadow: 0 10px 30px -5px rgba(11, 59, 44, 0.05);
      --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      font-family: var(--font-stack);
      background-color: var(--bg-base);
      color: #1E293B;
      line-height: 1.75;
      overflow-x: hidden;
    }
    p {
      margin-bottom: 1.25rem;
    }
    .custom-shadow {
      box-shadow: var(--card-shadow);
      border: 1px solid var(--card-border);
    }
    .hero-bg-gradient {
      background: linear-gradient(135deg, #0A0F1D 0%, #0B3B2C 75%, #051a13 100%);
    }
    .glass-nav {
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      background-color: rgba(255, 255, 255, 0.94);
    }
    .hover-lift {
      transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .hover-lift:hover {
      transform: translateY(-4px);
      box-shadow: 0 18px 35px -8px rgba(11, 59, 44, 0.12);
    }
    /* 解决锚点跳转遮挡 */
    section {
      scroll-margin-top: 80px;
    }
    /* 表单与输入框 */
    .form-input-focus:focus {
      outline: none;
      border-color: #00D287;
      box-shadow: 0 0 0 3px rgba(0, 210, 135, 0.2);
    }