/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    :root {
      --deep-black: #0A0E17;
      --fire-orange: #FF4D2E;
      --electric-cyan: #2EE6D8;
      --soft-white: #F5F5F7;
      --dark-gray: #1A1F2B;
      --border-light: rgba(46, 230, 216, 0.15);
      --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
      --radius-xl: 16px;
      --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
      --font-body: 'PingFang SC', 'Noto Serif SC', 'Microsoft YaHei', sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: var(--font-body);
      background-color: var(--deep-black);
      color: var(--soft-white);
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    h1, h2, h3, h4, h5, h6 {
      font-family: var(--font-heading);
      letter-spacing: -0.02em;
      line-height: 1.2;
    }
    .gradient-text {
      background: linear-gradient(135deg, var(--fire-orange), var(--electric-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .card-blur {
      background: rgba(26, 31, 43, 0.8);
      backdrop-filter: blur(8px);
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-card);
      padding: 2rem;
      transition: all 0.3s ease;
    }
    .card-blur:hover {
      border-color: rgba(46, 230, 216, 0.5);
      box-shadow: 0 16px 40px rgba(0,0,0,0.6);
      transform: translateY(-4px);
    }
    .btn-primary {
      background-color: var(--fire-orange);
      color: white;
      font-weight: 700;
      border-radius: 9999px;
      padding: 0.75rem 2rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s ease;
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      background-color: var(--electric-cyan);
      transform: scale(1.05);
      color: #0A0E17;
    }
    .btn-secondary {
      background: transparent;
      border: 1px solid var(--electric-cyan);
      color: var(--electric-cyan);
      font-weight: 600;
      border-radius: 9999px;
      padding: 0.75rem 2rem;
      transition: all 0.3s ease;
      cursor: pointer;
    }
    .btn-secondary:hover {
      background: rgba(46, 230, 216, 0.1);
    }
    .dock-nav {
      background: rgba(10, 14, 23, 0.7);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 9999px;
      padding: 0.75rem 1.5rem;
      position: fixed;
      top: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 50;
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: auto;
      max-width: 90vw;
      transition: background 0.3s;
    }
    .scrolled-dock {
      background: rgba(10, 14, 23, 0.9);
    }
    @media (max-width: 768px) {
      .dock-nav {
        top: auto;
        bottom: 16px;
        left: 10px;
        right: 10px;
        transform: none;
        border-radius: 40px;
        padding: 0.6rem 1.2rem;
        justify-content: center;
        width: calc(100% - 20px);
      }
      .desktop-links {
        display: none;
      }
      .mobile-dock {
        display: flex;
        gap: 1.2rem;
      }
    }
    .desktop-links a {
      color: #ccc;
      margin: 0 1rem;
      font-weight: 500;
      transition: color 0.2s;
      text-decoration: none;
      position: relative;
    }
    .desktop-links a:hover {
      color: var(--electric-cyan);
    }
    .desktop-links a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--electric-cyan);
      transition: width 0.3s;
    }
    .desktop-links a:hover::after {
      width: 100%;
    }
    .animate-fade-up {
      animation: fadeUp 0.8s ease forwards;
      opacity: 0;
      transform: translateY(20px);
    }
    @keyframes fadeUp {
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    .stagger-1 { animation-delay: 0.1s; }
    .stagger-2 { animation-delay: 0.2s; }
    .stagger-3 { animation-delay: 0.3s; }
    .stagger-4 { animation-delay: 0.4s; }
    .count-up {
      transition: all 0.1s linear;
    }
    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.4s;
    }
    .faq-item.active .faq-content {
      max-height: 200px;
      padding-top: 1rem;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    input:focus-visible, button:focus-visible, a:focus-visible {
      outline: 2px solid var(--electric-cyan);
      outline-offset: 2px;
    }
    .hero-bg {
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
    }
    .hero-bg::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(10,14,23,0.75);
      backdrop-filter: blur(2px);
    }