:root {
      --bg-main: #f8fafc;
      --bg-surface: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --neon-cyan: #06b6d4;
      --neon-magenta: #ec4899;
      --neon-violet: #8b5cf6;
      --neon-gradient: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 50%, #ec4899 100%);
      --neon-glow: 0 4px 20px rgba(6, 182, 212, 0.15), 0 0 10px rgba(236, 72, 153, 0.1);
      --card-border: 1px solid rgba(226, 232, 240, 0.8);
      --card-border-neon: 1px solid rgba(139, 92, 246, 0.3);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --max-width: 1200px;
      --transition: all 0.25s ease;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    .container {
      width: 100%;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo img {
      max-height: 40px;
      width: auto;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }
    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 12px;
      border-radius: 6px;
      transition: var(--transition);
    }
    .nav-links a:hover {
      color: var(--neon-cyan);
      background: rgba(6, 182, 212, 0.05);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-neon-outline {
      padding: 8px 18px;
      border-radius: 20px;
      border: 1px solid var(--neon-violet);
      color: var(--neon-violet);
      font-size: 14px;
      font-weight: 600;
      background: transparent;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-neon-outline:hover {
      background: var(--neon-violet);
      color: #ffffff;
      box-shadow: 0 0 12px rgba(139, 92, 246, 0.4);
    }
    .btn-neon-solid {
      padding: 8px 20px;
      border-radius: 20px;
      background: var(--neon-gradient);
      color: #ffffff;
      font-size: 14px;
      font-weight: 600;
      border: none;
      box-shadow: 0 4px 15px rgba(236, 72, 153, 0.3);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
    }
    .btn-neon-solid:hover {
      opacity: 0.95;
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(6, 182, 212, 0.4);
    }

    /* 首屏 Hero */
    .hero-section {
      position: relative;
      padding: 80px 0 60px;
      background: radial-gradient(circle at 10% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(236, 72, 153, 0.08) 0%, transparent 40%),
                  #ffffff;
      border-bottom: 1px solid #edf2f7;
    }
    .hero-content {
      text-align: center;
      max-width: 860px;
      margin: 0 auto;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      background: rgba(139, 92, 246, 0.08);
      border: 1px solid rgba(139, 92, 246, 0.25);
      border-radius: 30px;
      color: var(--neon-violet);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 24px;
    }
    .hero-badge-pulse {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--neon-magenta);
      box-shadow: 0 0 8px var(--neon-magenta);
    }
    h1.hero-title {
      font-size: 38px;
      line-height: 1.25;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    h1.hero-title span {
      background: var(--neon-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 17px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 720px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .btn-hero-primary {
      padding: 14px 34px;
      border-radius: 30px;
      background: var(--neon-gradient);
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      box-shadow: 0 6px 25px rgba(139, 92, 246, 0.35);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 30px rgba(6, 182, 212, 0.45);
    }
    .btn-hero-secondary {
      padding: 14px 30px;
      border-radius: 30px;
      background: #ffffff;
      color: #0f172a;
      border: 1px solid #cbd5e1;
      font-size: 16px;
      font-weight: 600;
      transition: var(--transition);
    }
    .btn-hero-secondary:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
      background: rgba(6, 182, 212, 0.02);
    }
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 30px;
    }
    .hero-stat-card {
      background: #ffffff;
      border: var(--card-border);
      padding: 20px;
      border-radius: var(--radius-md);
      box-shadow: 0 4px 12px rgba(0,0,0,0.03);
      position: relative;
      overflow: hidden;
    }
    .hero-stat-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: var(--neon-gradient);
    }
    .hero-stat-val {
      font-size: 26px;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 4px;
    }
    .hero-stat-val text-neon {
      background: var(--neon-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-stat-label {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 通用版块标题 */
    .section-header {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 50px;
    }
    .section-tag {
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--neon-cyan);
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: inline-block;
    }
    h2.section-title {
      font-size: 28px;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 12px;
      position: relative;
      display: inline-block;
    }
    .section-title::after {
      content: "";
      position: absolute;
      bottom: -6px;
      left: 50%;
      transform: translateX(-50%);
      width: 48px;
      height: 3px;
      background: var(--neon-gradient);
      border-radius: 2px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      margin-top: 14px;
    }

    section {
      padding: 70px 0;
      position: relative;
    }
    section:nth-child(even) {
      background: #ffffff;
    }
    section:nth-child(odd) {
      background: #f8fafc;
    }

    /* 平台矩阵卡片 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 20px;
    }
    .matrix-card {
      background: #ffffff;
      border: var(--card-border);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .matrix-card:hover {
      border-color: var(--neon-cyan);
      transform: translateY(-4px);
      box-shadow: var(--neon-glow);
    }
    .matrix-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }
    .matrix-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .matrix-tag {
      align-self: flex-start;
      font-size: 12px;
      padding: 3px 8px;
      border-radius: 4px;
      background: rgba(6, 182, 212, 0.08);
      color: var(--neon-cyan);
      font-weight: 600;
    }

    /* 行业方案展示 */
    .solution-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .solution-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: var(--card-border);
      padding: 28px;
      transition: var(--transition);
      border-top: 3px solid transparent;
    }
    .solution-card:hover {
      border-top-color: var(--neon-magenta);
      box-shadow: 0 10px 25px rgba(236, 72, 153, 0.1);
      transform: translateY(-3px);
    }
    .solution-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(236, 72, 153, 0.1);
      color: var(--neon-magenta);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
    }
    .solution-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .solution-card p {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 标准流程时间线 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }
    .flow-step-item {
      background: #ffffff;
      padding: 24px 18px;
      border-radius: var(--radius-md);
      border: var(--card-border);
      text-align: center;
      position: relative;
    }
    .flow-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--neon-gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px;
      font-weight: 700;
      font-size: 14px;
      box-shadow: 0 2px 10px rgba(6, 182, 212, 0.3);
    }
    .flow-step-item h3 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .flow-step-item p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 对比评测表 */
    .compare-container {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: var(--card-border);
      overflow: hidden;
      box-shadow: 0 6px 25px rgba(0,0,0,0.02);
    }
    .compare-header-summary {
      background: linear-gradient(135deg, rgba(6,182,212,0.06), rgba(236,72,153,0.06));
      padding: 24px;
      border-bottom: 1px solid #e2e8f0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }
    .compare-score-badge {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .score-stars {
      color: #f59e0b;
      font-size: 18px;
    }
    .score-num {
      font-size: 24px;
      font-weight: 800;
      color: var(--neon-violet);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      font-size: 14px;
      border-bottom: 1px solid #f1f5f9;
    }
    .compare-table th {
      background: #f8fafc;
      color: var(--text-muted);
      font-weight: 600;
    }
    .compare-highlight {
      background: rgba(6, 182, 212, 0.04);
      font-weight: 600;
      color: #0f172a;
    }
    .tag-win {
      display: inline-block;
      padding: 2px 6px;
      border-radius: 4px;
      background: #ecfdf5;
      color: #059669;
      font-size: 12px;
      margin-left: 6px;
    }

    /* 案例图片展示 */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }
    .case-media-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: var(--card-border);
      box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    }
    .case-media-box {
      width: 100%;
      aspect-ratio: 16/9;
      background: #f1f5f9;
      overflow: hidden;
    }
    .case-media-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }
    .case-media-card:hover .case-media-box img {
      transform: scale(1.03);
    }
    .case-media-info {
      padding: 18px;
    }
    .case-media-info h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .case-media-info p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 客户评价 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: #ffffff;
      border: var(--card-border);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: 0 4px 10px rgba(0,0,0,0.02);
    }
    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      font-style: italic;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }
    .review-avatar-placeholder {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--neon-gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }
    .review-info h4 {
      font-size: 14px;
      font-weight: 700;
    }
    .review-info span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* Token 比价 */
    .token-table-wrap {
      background: #ffffff;
      border: var(--card-border);
      border-radius: var(--radius-md);
      overflow-x: auto;
    }
    .token-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 600px;
    }
    .token-table th, .token-table td {
      padding: 14px 18px;
      font-size: 14px;
      border-bottom: 1px solid #f1f5f9;
      text-align: left;
    }
    .token-table th {
      background: #f8fafc;
      color: var(--text-muted);
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #ffffff;
      border: var(--card-border);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .faq-question {
      padding: 16px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      user-select: none;
      transition: background 0.2s;
    }
    .faq-question:hover {
      background: #f8fafc;
    }
    .faq-arrow {
      font-size: 12px;
      color: var(--neon-violet);
      transition: transform 0.2s;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.6;
      transition: all 0.3s ease-out;
      background: #fafbfc;
    }
    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 14px 20px 20px;
      border-top: 1px solid #f1f5f9;
    }

    /* 需求匹配与表单 */
    .form-wrapper {
      max-width: 640px;
      margin: 0 auto;
      background: #ffffff;
      border: var(--card-border);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid #cbd5e1;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
      background: #f8fafc;
    }
    .form-control:focus {
      border-color: var(--neon-cyan);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
    }
    textarea.form-control {
      min-height: 110px;
      resize: vertical;
    }
    .btn-submit {
      width: 100%;
      padding: 14px;
      border-radius: var(--radius-sm);
      background: var(--neon-gradient);
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(236, 72, 153, 0.3);
      transition: var(--transition);
    }
    .btn-submit:hover {
      opacity: 0.95;
      box-shadow: 0 6px 20px rgba(6, 182, 212, 0.4);
    }

    /* 资讯与友情链接 */
    .article-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 15px;
    }
    .article-tag-item {
      padding: 6px 14px;
      border-radius: 20px;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      font-size: 13px;
      color: var(--text-muted);
      transition: var(--transition);
    }
    .article-tag-item:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
    }

    /* 页脚 */
    footer.site-footer {
      background: #0f172a;
      color: #cbd5e1;
      padding: 60px 0 30px;
      margin-top: auto;
      border-top: 2px solid #1e293b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h3 {
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-col p, .footer-col li {
      font-size: 14px;
      color: #94a3b8;
      line-height: 1.8;
      list-style: none;
    }
    .footer-col a:hover {
      color: var(--neon-cyan);
    }
    .footer-qr-card {
      display: flex;
      align-items: center;
      gap: 16px;
      background: #1e293b;
      padding: 12px;
      border-radius: var(--radius-sm);
    }
    .footer-qr-card img {
      width: 70px;
      height: 70px;
      border-radius: 4px;
      display: block;
    }
    .footer-links-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .footer-links-group a {
      color: #94a3b8;
      font-size: 13px;
      transition: var(--transition);
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
      color: #64748b;
    }

    /* 浮动工具条 */
    .float-panel {
      position: fixed;
      right: 20px;
      bottom: 40px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 99;
    }
    .float-btn {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--text-main);
      font-size: 14px;
      font-weight: 700;
      transition: var(--transition);
    }
    .float-btn:hover {
      background: var(--neon-cyan);
      color: #fff;
      border-color: var(--neon-cyan);
    }

    /* 响应式适配 */
    @media (max-width: 992px) {
      .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
      .solution-grid { grid-template-columns: repeat(2, 1fr); }
      .flow-steps { grid-template-columns: repeat(3, 1fr); }
      .review-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      h1.hero-title { font-size: 28px; }
      .solution-grid { grid-template-columns: 1fr; }
      .flow-steps { grid-template-columns: 1fr; }
      .review-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .hero-actions { flex-direction: column; width: 100%; }
      .hero-actions a { width: 100%; text-align: center; }
    }