/* roulang page: index */
:root {
      --brand-dark: #0e1117;
      --brand-surface: #151921;
      --brand-accent: #00dc82;
      --brand-cyan: #06b6d4;
      --brand-amber: #f59e0b;
      --brand-border: #262d3d;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --radius-xl: 12px;
      --radius-2xl: 16px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    body {
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }
    .ticket-cutout {
      position: relative;
      background: linear-gradient(135deg, #182232 0%, #0d141e 100%);
      border: 1px solid #2d3b53;
      border-radius: 14px;
    }
    .ticket-cutout::before, .ticket-cutout::after {
      content: '';
      position: absolute;
      top: 50%;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: var(--bg-light);
      transform: translateY(-50%);
      z-index: 10;
    }
    .ticket-cutout::before { left: -12px; box-shadow: inset -2px 0 0 #2d3b53; }
    .ticket-cutout::after { right: -12px; box-shadow: inset 2px 0 0 #2d3b53; }
    .hero-mesh {
      background-color: #0b0f17;
      background-image: radial-gradient(circle at 20% 30%, rgba(0, 220, 130, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 80% 70%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
                        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
      background-size: 100% 100%, 100% 100%, 32px 32px, 32px 32px;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out, padding 0.35s ease;
    }
    .faq-item.active .faq-answer {
      max-height: 260px;
      padding-top: 1rem;
      padding-bottom: 0.5rem;
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }