/* roulang page: index */
:root {
      --electric: #7B2FF7;
      --deep: #1E0A3C;
      --neon: #00F5D4;
      --soft: #F8F9FA;
      --darktext: #343A40;
      --radius-card: 16px;
      --radius-btn: 30px;
      --glass-bg: rgba(30, 10, 60, 0.6);
      --glass-border: rgba(255, 255, 255, 0.15);
      --shadow-card: 0 4px 20px rgba(0,0,0,0.2);
      --neon-glow: 0 0 15px #00F5D4;
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: 'Inter', 'Noto Sans SC', system-ui, sans-serif;
      margin: 0;
      background-color: var(--deep);
      color: var(--darktext);
      line-height: 1.7;
      font-weight: 400;
      font-size: 16px;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    button, input {
      font-family: inherit;
    }
    .glass-card {
      background: var(--glass-bg);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
    }
    .glass-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 12px 30px rgba(0,0,0,0.4), 0 0 0 1px var(--neon);
    }
    .neon-btn {
      background-color: var(--neon);
      color: var(--deep);
      font-weight: 700;
      letter-spacing: 0.05em;
      border-radius: var(--radius-btn);
      padding: 0.75rem 2rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s ease;
      border: none;
      cursor: pointer;
      text-transform: uppercase;
    }
    .neon-btn:hover {
      box-shadow: var(--neon-glow);
      transform: scale(1.03);
    }
    .outline-btn {
      background: transparent;
      border: 1px solid var(--neon);
      color: var(--neon);
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 0.75rem 2rem;
      transition: all 0.3s ease;
      cursor: pointer;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .outline-btn:hover {
      background: rgba(0,245,212,0.1);
      box-shadow: 0 0 10px var(--neon);
    }
    .text-gradient {
      background: linear-gradient(135deg, var(--electric), var(--neon));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    h1 {
      font-size: 3.5rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      line-height: 1.2;
    }
    h2 {
      font-size: 2.25rem;
      font-weight: 700;
      color: white;
    }
    h3 {
      font-size: 1.5rem;
      font-weight: 600;
    }
    @media (max-width: 768px) {
      h1 { font-size: 2.5rem; }
      h2 { font-size: 1.75rem; }
      h3 { font-size: 1.25rem; }
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      background: var(--neon);
      border-radius: 50%;
      display: inline-block;
      animation: pulse 1.5s infinite;
    }
    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(0,245,212,0.7); }
      70% { box-shadow: 0 0 0 10px rgba(0,245,212,0); }
      100% { box-shadow: 0 0 0 0 rgba(0,245,212,0); }
    }
    .count-up {
      font-size: 3rem;
      font-weight: 800;
      color: var(--neon);
    }
    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.4s ease;
    }
    .faq-item.active .faq-content {
      max-height: 200px;
      padding-top: 1rem;
      padding-bottom: 1rem;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .mobile-menu {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100vh;
      background: rgba(30,10,60,0.95);
      backdrop-filter: blur(20px);
      z-index: 100;
      flex-direction: column;
      justify-content: center;
      align-items: center;
    }
    .mobile-menu.active {
      display: flex;
    }
    nav a:hover {
      color: var(--neon);
      border-bottom: 2px solid var(--neon);
    }
    .badge {
      background: var(--neon);
      color: var(--deep);
      font-weight: 700;
      font-size: 0.7rem;
      padding: 0.2rem 0.6rem;
      border-radius: 20px;
      text-transform: uppercase;
    }