/* roulang page: index */
:root {
      --primary: #8B1A3B;
      --primary-deep: #5E0F26;
      --gold: #C8973E;
      --gold-light: #D4A843;
      --bg-light: #F7F8FA;
      --white: #FFFFFF;
      --text-main: #1E1E24;
      --text-secondary: #5A5A6E;
      --text-muted: #8E8E9E;
      --accent-teal: #2A9D8F;
      --border-light: #E8EAEF;
      --shadow-sm: 0 2px 12px rgba(0,0,0,0.04);
      --shadow-hover: 0 12px 36px rgba(0,0,0,0.08), 0 0 0 1px rgba(212,168,67,0.3);
      --radius-card: 16px;
      --radius-btn: 8px;
      --radius-tag: 6px;
      --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
      --transition: all 0.25s ease;
    }

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

    body {
      font-family: var(--font-sans);
      background-color: var(--white);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }

    /* 导航 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 72px;
      background: rgba(255,255,255,0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      z-index: 100;
      display: flex;
      align-items: center;
    }

    .header-inner {
      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(--primary);
      letter-spacing: -0.3px;
    }

    .logo-icon {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: var(--gold-light);
      border-radius: 8px;
      font-size: 22px;
      font-weight: 700;
      transform: rotate(45deg);
    }
    .logo-icon span {
      transform: rotate(-45deg);
      display: block;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-links a {
      font-weight: 500;
      color: var(--text-secondary);
      position: relative;
      padding: 4px 0;
      font-size: 1rem;
    }

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

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--gold);
      transition: width 0.25s ease;
    }

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

    .btn-primary {
      background: linear-gradient(135deg, var(--gold-light), var(--gold));
      color: white;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      border: none;
      cursor: pointer;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 4px 10px rgba(200,151,62,0.3);
      letter-spacing: 0.3px;
    }

    .btn-primary:hover {
      background: #B8892E;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(184,137,46,0.4);
    }

    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--gold);
      color: var(--gold);
      font-weight: 600;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-outline:hover {
      background: rgba(212,168,67,0.08);
      border-color: var(--gold-light);
      color: var(--gold-light);
    }

    .badge-tag {
      background: var(--primary);
      color: white;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 20px;
      margin-left: 8px;
      letter-spacing: 0.4px;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 28px;
      color: var(--text-main);
      cursor: pointer;
    }

    /* Hero */
    .hero {
      padding: 140px 0 80px;
      background: radial-gradient(circle at 10% 30%, rgba(139,26,59,0.95) 0%, #3a0d1a 100%);
      position: relative;
      overflow: hidden;
      min-height: 90vh;
      display: flex;
      align-items: center;
    }

    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.25;
      mix-blend-mode: overlay;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      position: relative;
      z-index: 2;
    }

    .hero-content h1 {
      font-size: 3.4rem;
      font-weight: 700;
      line-height: 1.2;
      color: white;
      margin-bottom: 20px;
    }
    .hero-content h1 span {
      color: var(--gold-light);
    }

    .hero-sub {
      font-size: 1.2rem;
      color: rgba(255,255,255,0.8);
      margin-bottom: 32px;
      max-width: 480px;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 28px;
    }

    .live-stats {
      display: flex;
      gap: 30px;
      color: white;
      margin-top: 12px;
    }
    .stat-item {
      display: flex;
      flex-direction: column;
    }
    .stat-number {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--gold-light);
      letter-spacing: -0.2px;
    }
    .stat-label {
      font-size: 0.9rem;
      color: rgba(255,255,255,0.7);
    }

    .hero-image {
      background: url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
      border-radius: 24px;
      height: 400px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
      border: 1px solid rgba(255,255,255,0.15);
    }

    /* 通用板块 */
    .section {
      padding: 80px 0;
    }
    .section-light {
      background: var(--bg-light);
    }
    .section-title {
      font-size: 2.4rem;
      font-weight: 700;
      text-align: center;
      margin-bottom: 16px;
      color: var(--text-main);
    }
    .section-sub {
      text-align: center;
      color: var(--text-secondary);
      margin-bottom: 48px;
      font-size: 1.1rem;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .card {
      background: var(--white);
      border-radius: var(--radius-card);
      padding: 32px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      border: 1px solid transparent;
    }
    .card:hover {
      box-shadow: var(--shadow-hover);
      border-color: rgba(212,168,67,0.25);
    }

    .icon-circle {
      width: 52px;
      height: 52px;
      background: rgba(139,26,59,0.08);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 24px;
      margin-bottom: 20px;
    }

    .feature-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      margin-bottom: 64px;
    }
    .feature-text h3 {
      font-size: 1.8rem;
      margin-bottom: 12px;
    }
    .feature-list {
      list-style: none;
      margin-top: 16px;
    }
    .feature-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 10px;
      color: var(--text-secondary);
    }
    .feature-list li::before {
      content: "✓";
      color: var(--accent-teal);
      font-weight: 700;
    }

    .pricing-card {
      background: white;
      border-radius: var(--radius-card);
      padding: 36px 28px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      border: 1px solid var(--border-light);
    }
    .pricing-card.featured {
      border: 2px solid var(--gold);
      transform: scale(1.03);
      box-shadow: var(--shadow-hover);
    }
    .price {
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--primary);
    }

    .faq-item {
      border-bottom: 1px solid var(--border-light);
      padding: 18px 0;
    }
    .faq-question {
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      cursor: pointer;
    }

    .cta-banner {
      background: linear-gradient(135deg, #7B1038, #2d0a15);
      padding: 80px 0;
      text-align: center;
      color: white;
      border-radius: 24px;
      margin: 60px 0;
    }

    .footer {
      background: #1A1A22;
      color: #B0B0C0;
      padding: 60px 0 30px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 30px;
    }

    @media (max-width: 1024px) {
      .hero-grid, .feature-row { grid-template-columns: 1fr; }
      .hero-image { height: 300px; }
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .nav-links { display: none; }
      .mobile-menu-btn { display: block; }
      .grid-3, .grid-2, .footer-grid { grid-template-columns: 1fr; }
      .hero-content h1 { font-size: 2.2rem; }
      .section-title { font-size: 1.9rem; }
    }