:root {
      --bg-base: #0c0817;
      --bg-card: #15102a;
      --bg-card-hover: #1e153d;
      --text-main: #f5f2fe;
      --text-muted: #a69ebd;
      --primary: #d946ef;
      --primary-glow: rgba(217, 70, 239, 0.4);
      --secondary: #8b5cf6;
      --accent: #06b6d4;
      --border-color: rgba(217, 70, 239, 0.2);
      --border-hover: rgba(217, 70, 239, 0.6);
      --max-width: 1200px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 10%, rgba(217, 70, 239, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 40%);
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    .container {
      width: 100%;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 20px;
    }
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(12, 8, 23, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }
    .brand-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-wrap {
      display: flex;
      align-items: center;
      max-height: 38px;
    }
    .brand-logo-wrap img {
      max-height: 38px;
      width: auto;
    }
    .site-title-text {
      font-size: 1.25rem;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: #fff;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      font-size: 0.92rem;
      color: var(--text-muted);
      transition: color 0.2s ease;
      display: inline-block;
      padding: 8px 12px;
    }
    .nav-links li a:hover {
      color: var(--primary);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-action-sm {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 16px;
      border-radius: 6px;
      font-size: 0.88rem;
      font-weight: 600;
      transition: all 0.3s ease;
    }
    .btn-solid {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #fff;
      box-shadow: 0 4px 14px var(--primary-glow);
    }
    .btn-solid:hover {
      opacity: 0.92;
      transform: translateY(-1px);
    }
    .btn-outline {
      border: 1px solid var(--border-color);
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.03);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-main);
      font-size: 1.5rem;
      cursor: pointer;
    }
    .hero-section {
      padding: 90px 0 60px;
      text-align: center;
      position: relative;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      border-radius: 20px;
      background: rgba(217, 70, 239, 0.1);
      border: 1px solid var(--border-color);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: clamp(2rem, 4.5vw, 3.2rem);
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #ffffff;
      text-shadow: 0 0 20px rgba(217, 70, 239, 0.3);
    }
    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }
    .hero-cta-box {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
      margin-bottom: 48px;
    }
    .btn-hero-primary {
      padding: 14px 34px;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: 8px;
      background: linear-gradient(135deg, #d946ef, #8b5cf6);
      color: #fff;
      box-shadow: 0 6px 24px var(--primary-glow);
      transition: all 0.3s;
    }
    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 30px rgba(217, 70, 239, 0.6);
    }
    .btn-hero-secondary {
      padding: 14px 28px;
      font-size: 1.05rem;
      font-weight: 600;
      border-radius: 8px;
      border: 1px solid rgba(217, 70, 239, 0.4);
      background: rgba(255, 255, 255, 0.03);
      color: #fff;
      transition: all 0.3s;
    }
    .btn-hero-secondary:hover {
      border-color: var(--primary);
      background: rgba(217, 70, 239, 0.1);
    }
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 16px;
      max-width: 900px;
      margin: 0 auto;
    }
    .metric-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 20px;
      border-radius: 8px;
      text-align: center;
    }
    .metric-value {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .metric-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .section-block {
      padding: 60px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-head {
      text-align: center;
      margin-bottom: 44px;
    }
    .section-tag {
      font-size: 0.8rem;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 1.85rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }
    .section-lead {
      font-size: 0.98rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }
    .card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 20px;
    }
    .base-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 24px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .base-card:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    }
    .card-icon {
      font-size: 1.8rem;
      margin-bottom: 14px;
      display: inline-block;
      color: var(--primary);
    }
    .card-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: #fff;
    }
    .card-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }
    .card-badge {
      display: inline-block;
      margin-top: 14px;
      font-size: 0.75rem;
      color: var(--accent);
      background: rgba(6, 182, 212, 0.1);
      padding: 4px 8px;
      border-radius: 4px;
      align-self: flex-start;
    }
    .platform-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }
    .chip {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: var(--text-muted);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.82rem;
      transition: all 0.2s;
    }
    .chip:hover {
      border-color: var(--primary);
      color: #fff;
    }
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      position: relative;
    }
    .step-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 24px;
      position: relative;
    }
    .step-number {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 16px;
      font-size: 0.9rem;
    }
    .step-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    .table-wrapper {
      overflow-x: auto;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 24px;
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.9rem;
    }
    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .custom-table th {
      background: rgba(217, 70, 239, 0.08);
      color: #fff;
      font-weight: 600;
      white-space: nowrap;
    }
    .custom-table tr:hover {
      background: rgba(255, 255, 255, 0.02);
    }
    .custom-table td.highlight {
      color: var(--primary);
      font-weight: 600;
    }
    .rating-banner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      background: linear-gradient(90deg, rgba(217, 70, 239, 0.15), rgba(139, 92, 246, 0.15));
      border: 1px solid var(--primary);
      border-radius: 8px;
      padding: 24px 30px;
      margin-bottom: 30px;
    }
    .rating-score {
      display: flex;
      align-items: baseline;
      gap: 8px;
    }
    .score-num {
      font-size: 2.8rem;
      font-weight: 900;
      color: #fff;
      line-height: 1;
    }
    .score-total {
      font-size: 1.1rem;
      color: var(--text-muted);
    }
    .rating-stars {
      color: #fbbf24;
      font-size: 1.2rem;
      letter-spacing: 2px;
    }
    .media-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }
    .media-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .media-img-wrap {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background: #000;
    }
    .media-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .media-card:hover .media-img-wrap img {
      transform: scale(1.05);
    }
    .media-body {
      padding: 18px;
      flex-grow: 1;
    }
    .media-title {
      font-size: 1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
    }
    .media-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      overflow: hidden;
    }
    .faq-question {
      padding: 16px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 600;
      font-size: 0.95rem;
      color: #fff;
      user-select: none;
    }
    .faq-question:hover {
      background: rgba(255, 255, 255, 0.02);
    }
    .faq-toggle-icon {
      font-size: 1.2rem;
      transition: transform 0.2s ease;
      color: var(--primary);
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      display: none;
      padding: 0 20px 16px;
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      padding-top: 12px;
    }
    .faq-item.active .faq-answer {
      display: block;
    }
    .form-box {
      max-width: 760px;
      margin: 0 auto;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 36px;
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      margin-bottom: 18px;
    }
    .form-group-full {
      grid-column: 1 / -1;
    }
    .form-label {
      display: block;
      font-size: 0.88rem;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      background: rgba(0, 0, 0, 0.25);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 6px;
      padding: 10px 14px;
      color: #fff;
      font-size: 0.9rem;
      outline: none;
      transition: border-color 0.2s;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
    }
    .form-textarea {
      height: 110px;
      resize: vertical;
    }
    .btn-submit {
      width: 100%;
      padding: 12px;
      font-size: 1rem;
      font-weight: 700;
      border: none;
      border-radius: 6px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #fff;
      cursor: pointer;
      transition: opacity 0.2s;
    }
    .btn-submit:hover {
      opacity: 0.92;
    }
    .contact-columns {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      align-items: center;
      margin-top: 30px;
    }
    .contact-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 30px;
    }
    .contact-item {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
      font-size: 0.92rem;
      color: var(--text-muted);
    }
    .contact-item strong {
      color: #fff;
      min-width: 85px;
    }
    .qr-container {
      text-align: center;
    }
    .qr-container img {
      max-width: 160px;
      border-radius: 8px;
      border: 2px solid var(--border-color);
      padding: 4px;
      background: #fff;
    }
    .qr-text {
      margin-top: 8px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .article-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 16px;
    }
    .article-item {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 6px;
      padding: 16px;
      transition: all 0.2s ease;
    }
    .article-item:hover {
      border-color: var(--primary);
    }
    .article-link {
      font-size: 0.9rem;
      color: var(--text-main);
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      line-height: 1.5;
    }
    .site-footer {
      background: #080511;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 50px 0 30px;
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 36px;
    }
    .footer-about p {
      margin-top: 12px;
      line-height: 1.6;
      max-width: 360px;
    }
    .footer-links-col h4 {
      color: #fff;
      font-size: 0.95rem;
      margin-bottom: 14px;
    }
    .footer-links-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-links-col a:hover {
      color: var(--primary);
    }
    .friend-links-box {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 20px;
      margin-bottom: 24px;
    }
    .friend-links-box strong {
      color: #fff;
      font-size: 0.85rem;
      display: inline-block;
      margin-bottom: 8px;
    }
    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }
    .friend-links-list a {
      color: var(--text-muted);
      font-size: 0.82rem;
      transition: color 0.2s;
    }
    .friend-links-list a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 20px;
      text-align: center;
      font-size: 0.8rem;
    }
    .fixed-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .widget-btn {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
      transition: all 0.2s;
    }
    .widget-btn:hover {
      border-color: var(--primary);
      background: var(--primary);
      transform: translateY(-2px);
    }
    @media (max-width: 900px) {
      .header-actions { display: none; }
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #0c0817;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 20px;
        text-align: left;
      }
      .nav-links.active { display: flex; }
      .menu-toggle { display: block; }
      .form-grid { grid-template-columns: 1fr; }
      .contact-columns { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr; }
    }