/* roulang page: index */
:root {
      --color-primary: #0F172A;
      --color-accent: #10B981;
      --color-indigo: #6366F1;
      --color-bg-light: #F8FAFC;
      --color-border: #E2E8F0;
    }
    body {
      color: #334155;
      background-color: #FFFFFF;
      font-family: PingFang SC, "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    .code-mask {
      background: linear-gradient(180deg, rgba(15, 23, 42, 0.95) 0%, rgba(11, 15, 25, 0.98) 100%);
    }
    .glow-card {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .glow-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 30px -10px rgba(16, 185, 129, 0.12), 0 0 0 1px rgba(16, 185, 129, 0.3);
    }
    .hero-bg {
      background-image: linear-gradient(135deg, rgba(11, 15, 25, 0.88), rgba(15, 23, 42, 0.85)), url('/assets/images/2a4b75e1a3b81c27.webp');
      background-size: cover;
      background-position: center;
    }
    .section-dark {
      background-image: linear-gradient(180deg, #0B0F19 0%, #0F172A 100%);
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
    }
    .accordion-item.active .accordion-content {
      max-height: 240px;
    }
    .accordion-item.active .accordion-icon {
      transform: rotate(180deg);
    }
    .accordion-item.active {
      border-color: #10B981;
    }