/* roulang page: index */
@import url('/assets/css/vendor/0b67347532-css2.css');
    
    :root {
      --deep-space: #1A0A3E;
      --dark-bg: #0D0628;
      --star-gold: #F0C45A;
      --star-gold-hover: #F5D47A;
      --electric-cyan: #00D4AA;
      --soft-white: #F8F9FC;
      --text-primary: #1F2937;
      --text-secondary: #6B7280;
      --text-on-dark: #FFFFFF;
      --border-light: #E5E7EB;
      --card-shadow: 0 8px 30px rgba(26, 10, 62, 0.12);
      --card-shadow-hover: 0 12px 36px rgba(26, 10, 62, 0.18);
      --radius-lg: 20px;
      --radius-xl: 24px;
      --radius-full: 50px;
      --font-sans: 'Inter', 'PingFang SC', 'MiSans', 'Helvetica Neue', system-ui, sans-serif;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: var(--font-sans);
      background-color: #FFFFFF;
      color: var(--text-primary);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      scroll-behavior: smooth;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.3s ease;
    }

    button, .btn {
      cursor: pointer;
      font-family: inherit;
      transition: all 0.3s ease;
      border: none;
      outline: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .container-main {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    @media (max-width: 768px) {
      .container-main {
        padding-left: 16px;
        padding-right: 16px;
      }
    }

    /* 导航样式 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 72px;
      background: rgba(13, 6, 40, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.15);
      z-index: 50;
      display: flex;
      align-items: center;
      transition: background 0.3s ease;
    }

    .navbar.scrolled {
      background: rgba(13, 6, 40, 0.95);
    }

    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1.5rem;
      color: var(--star-gold);
      letter-spacing: 0.5px;
    }

    .logo-icon {
      width: 32px;
      height: 32px;
      background: radial-gradient(circle at 30% 30%, #F0C45A, #B8860B);
      border-radius: 50%;
      box-shadow: 0 0 12px rgba(240, 196, 90, 0.7);
      position: relative;
    }

    .nav-links {
      display: flex;
      gap: 2rem;
      align-items: center;
      list-style: none;
    }

    .nav-links a {
      color: rgba(255, 255, 255, 0.9);
      font-size: 0.9rem;
      font-weight: 500;
      position: relative;
      padding: 6px 0;
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--star-gold);
      transition: width 0.3s ease;
    }

    .nav-links a:hover {
      color: var(--star-gold);
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 6px;
      background: transparent;
      border: none;
      cursor: pointer;
    }

    .hamburger span {
      width: 28px;
      height: 2px;
      background: white;
      border-radius: 2px;
      transition: 0.3s;
    }

    .mobile-menu {
      position: fixed;
      top: 72px;
      left: 0;
      width: 100%;
      height: 0;
      overflow: hidden;
      background: #0D0628;
      transition: height 0.4s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 28px;
      z-index: 49;
    }

    .mobile-menu.open {
      height: calc(100vh - 72px);
    }

    .mobile-menu a {
      color: white;
      font-size: 1.5rem;
      font-weight: 500;
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .hamburger {
        display: flex;
      }
    }

    /* Hero 星空粒子背景模拟 */
    .hero-bg {
      background: radial-gradient(ellipse at 30% 40%, #1A0A3E 0%, #0D0628 70%);
      position: relative;
      overflow: hidden;
    }

    .hero-bg::before {
      content: '';
      position: absolute;
      width: 100%;
      height: 100%;
      background-image: radial-gradient(2px 2px at 15px 50px, #F0C45A, transparent),
                        radial-gradient(2px 2px at 75px 120px, #FFFFFF, transparent),
                        radial-gradient(3px 3px at 230px 300px, #F0C45A, transparent),
                        radial-gradient(2px 2px at 400px 80px, #00D4AA, transparent),
                        radial-gradient(3px 3px at 600px 450px, #F0C45A, transparent),
                        radial-gradient(2px 2px at 850px 200px, #FFFFFF, transparent);
      background-size: 1000px 600px;
      animation: starMove 30s linear infinite;
      opacity: 0.5;
    }

    @keyframes starMove {
      0% { transform: translateY(0px); }
      100% { transform: translateY(-400px); }
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .btn-primary {
      background: var(--star-gold);
      color: #1A0A3E;
      font-weight: 700;
      border-radius: var(--radius-full);
      padding: 14px 36px;
      box-shadow: 0 6px 18px rgba(240, 196, 90, 0.3);
    }

    .btn-primary:hover {
      background: var(--star-gold-hover);
      transform: translateY(-2px);
    }

    .btn-outline {
      border: 2px solid white;
      color: white;
      background: transparent;
      border-radius: var(--radius-full);
      padding: 14px 36px;
      font-weight: 600;
    }

    .btn-outline:hover {
      background: rgba(255,255,255,0.1);
      border-color: var(--star-gold);
      color: var(--star-gold);
    }

    .section-spacing {
      margin-top: 100px;
      margin-bottom: 100px;
    }

    @media (max-width: 768px) {
      .section-spacing {
        margin-top: 60px;
        margin-bottom: 60px;
      }
    }

    .card-hover {
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .card-hover:hover {
      transform: translateY(-6px);
      box-shadow: var(--card-shadow-hover);
    }

    .feature-icon {
      width: 64px;
      height: 64px;
      background: linear-gradient(135deg, #00D4AA, #1A0A3E);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }

    .pricing-card.popular {
      border: 2px solid var(--star-gold);
      transform: scale(1.03);
      box-shadow: 0 16px 40px rgba(240, 196, 90, 0.2);
    }

    .faq-item {
      background: #F3F4F6;
      border-radius: 16px;
      padding: 20px;
      margin-bottom: 16px;
      cursor: pointer;
      transition: background 0.3s;
    }
    .faq-item.active {
      background: white;
      box-shadow: 0 4px 16px rgba(0,0,0,0.04);
    }

    .footer-link {
      color: #CBD5E1;
      transition: color 0.2s;
    }
    .footer-link:hover {
      color: var(--star-gold);
    }

    .scroll-hint {
      position: absolute;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      animation: bounce 2s infinite;
    }
    @keyframes bounce {
      0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
      40% { transform: translateX(-50%) translateY(-12px); }
      60% { transform: translateX(-50%) translateY(-6px); }
    }