:root {
      --primary: #2563eb;
      --primary-hover: #1d4ed8;
      --accent-coral: #ff4757;
      --accent-cyan: #06b6d4;
      --accent-amber: #f59e0b;
      --accent-purple: #8b5cf6;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --bg-soft: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --border-accent: rgba(37, 99, 235, 0.2);
      --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
      --shadow-hover: 0 16px 32px -6px rgba(37, 99, 235, 0.16);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    .ai-container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .navbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background-color: rgba(37, 99, 235, 0.08);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn-nav-primary {
      padding: 9px 20px;
      font-size: 14px;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
      border-radius: 30px;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    }

    .btn-nav-primary:hover {
      box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
      transform: translateY(-1px);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 8px;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }

    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background-color: var(--text-main);
      margin: 4px 0;
      transition: var(--transition);
    }

    /* 首屏 Hero (严格无任何图片) */
    .hero-section {
      padding: 64px 0 56px;
      background: radial-gradient(circle at 85% 15%, rgba(6, 182, 212, 0.12) 0%, transparent 40%),
                  radial-gradient(circle at 10% 80%, rgba(255, 71, 87, 0.1) 0%, transparent 40%),
                  linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
      border-bottom: 1px solid var(--border-color);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background: rgba(37, 99, 235, 0.1);
      border: 1px solid rgba(37, 99, 235, 0.3);
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      border-radius: 30px;
      margin-bottom: 20px;
    }

    .hero-tag-pulse {
      width: 8px;
      height: 8px;
      background-color: var(--accent-coral);
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(255, 71, 87, 0.2);
    }

    .hero-title {
      font-size: 40px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title span {
      color: var(--primary);
      text-decoration: underline;
      text-decoration-color: var(--accent-amber);
      text-decoration-thickness: 5px;
    }

    .hero-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 36px;
    }

    .btn-hero-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      padding: 15px 36px;
      background: linear-gradient(135deg, var(--accent-coral) 0%, #e84118 100%);
      color: #ffffff;
      font-size: 17px;
      font-weight: 800;
      border-radius: 40px;
      box-shadow: 0 8px 24px rgba(255, 71, 87, 0.35);
      border: none;
    }

    .btn-hero-portal:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(255, 71, 87, 0.45);
      color: #ffffff;
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 15px 30px;
      background: #ffffff;
      color: var(--text-main);
      font-size: 15px;
      font-weight: 700;
      border: 2px solid var(--border-color);
      border-radius: 40px;
    }

    .btn-hero-secondary:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: rgba(37, 99, 235, 0.04);
    }

    .hero-metrics {
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
    }

    .metric-item {
      display: flex;
      flex-direction: column;
    }

    .metric-value {
      font-size: 26px;
      font-weight: 900;
      color: var(--text-main);
      display: flex;
      align-items: baseline;
      gap: 2px;
    }

    .metric-value em {
      font-style: normal;
      font-size: 16px;
      color: var(--accent-coral);
    }

    .metric-label {
      font-size: 13px;
      color: var(--text-light);
      font-weight: 600;
    }

    .hero-card-showcase {
      background: #ffffff;
      border: 2px solid #e0e7ff;
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .card-badge-top {
      position: absolute;
      top: -14px;
      right: 24px;
      background: linear-gradient(135deg, var(--accent-amber), #ea580c);
      color: #ffffff;
      font-size: 12px;
      font-weight: 800;
      padding: 5px 14px;
      border-radius: 20px;
      box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
    }

    .showcase-header {
      margin-bottom: 20px;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 12px;
    }

    .showcase-header h3 {
      font-size: 17px;
      font-weight: 800;
      color: var(--text-main);
    }

    .model-pills-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 24px;
    }

    .pill-item {
      font-size: 12px;
      font-weight: 700;
      padding: 6px 12px;
      border-radius: 20px;
      background: var(--bg-soft);
      color: var(--text-muted);
      border: 1px solid var(--border-color);
    }

    .pill-item.hot {
      background: rgba(37, 99, 235, 0.1);
      color: var(--primary);
      border-color: rgba(37, 99, 235, 0.3);
    }

    .pill-item.accent {
      background: rgba(255, 71, 87, 0.1);
      color: var(--accent-coral);
      border-color: rgba(255, 71, 87, 0.3);
    }

    .showcase-feature-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .feature-point {
      padding: 12px;
      border-radius: var(--radius-sm);
      background: var(--bg-soft);
      border-left: 3px solid var(--primary);
    }

    .feature-point h4 {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .feature-point p {
      font-size: 11px;
      color: var(--text-light);
      line-height: 1.4;
    }

    /* 模块通用样式 */
    .section-padding {
      padding: 72px 0;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--primary);
      background: rgba(37, 99, 235, 0.08);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-subtitle {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 关于我们 & 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: stretch;
    }

    .about-text-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .about-text-card h3 {
      font-size: 22px;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .about-text-card p {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.7;
    }

    .about-badges-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .about-badge-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-top: 4px solid var(--primary);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .about-badge-box:nth-child(2) { border-top-color: var(--accent-coral); }
    .about-badge-box:nth-child(3) { border-top-color: var(--accent-amber); }
    .about-badge-box:nth-child(4) { border-top-color: var(--accent-cyan); }

    .about-badge-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .about-badge-box h4 {
      font-size: 16px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .about-badge-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 场景卡片矩阵 (AIGC服务 + 场景) */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
      opacity: 0;
      transition: var(--transition);
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(37, 99, 235, 0.4);
    }

    .service-card:hover::before {
      opacity: 1;
    }

    .service-card-tag {
      align-self: flex-start;
      font-size: 11px;
      font-weight: 800;
      color: var(--accent-coral);
      background: rgba(255, 71, 87, 0.08);
      padding: 3px 10px;
      border-radius: 12px;
      margin-bottom: 12px;
    }

    .service-card h3 {
      font-size: 17px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 标准制作流程 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }

    .flow-step-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px 18px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      position: relative;
      transition: var(--transition);
    }

    .flow-step-item:hover {
      transform: translateY(-3px);
      border-color: var(--primary);
    }

    .step-number {
      width: 38px;
      height: 38px;
      background: var(--primary);
      color: #ffffff;
      font-size: 16px;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px;
      box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
    }

    .flow-step-item:nth-child(2) .step-number { background: var(--accent-coral); box-shadow: 0 4px 10px rgba(255, 71, 87, 0.3); }
    .flow-step-item:nth-child(3) .step-number { background: var(--accent-amber); box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3); }
    .flow-step-item:nth-child(4) .step-number { background: var(--accent-cyan); box-shadow: 0 4px 10px rgba(6, 182, 212, 0.3); }
    .flow-step-item:nth-child(5) .step-number { background: var(--accent-purple); box-shadow: 0 4px 10px rgba(139, 92, 246, 0.3); }

    .flow-step-item h4 {
      font-size: 15px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .flow-step-item p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测模块 (明确五星推荐，9.9分，满分10分) */
    .review-score-panel {
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      box-shadow: var(--shadow-md);
    }

    .score-badge-area {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-number {
      font-size: 54px;
      font-weight: 900;
      color: var(--accent-amber);
      line-height: 1;
    }

    .score-meta h3 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .score-stars {
      color: var(--accent-amber);
      font-size: 18px;
      letter-spacing: 2px;
      margin-bottom: 4px;
    }

    .score-meta p {
      font-size: 13px;
      color: #cbd5e1;
    }

    .score-highlight-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .score-highlight-tags span {
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      font-size: 13px;
      padding: 6px 14px;
      border-radius: 20px;
      color: #f8fafc;
    }

    .comparison-table-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

    .comparison-table th,
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .comparison-table th {
      background: var(--bg-soft);
      font-weight: 800;
      color: var(--text-main);
    }

    .comparison-table th.highlight-col {
      background: rgba(37, 99, 235, 0.1);
      color: var(--primary);
      border-left: 2px solid var(--primary);
      border-right: 2px solid var(--primary);
    }

    .comparison-table td.highlight-col {
      background: rgba(37, 99, 235, 0.02);
      border-left: 2px solid var(--primary);
      border-right: 2px solid var(--primary);
      font-weight: 700;
      color: var(--primary);
    }

    /* Token 比价区 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .token-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

    .token-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent-coral);
    }

    .token-model-name {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .token-official-price {
      font-size: 13px;
      color: var(--text-light);
      text-decoration: line-through;
      margin-bottom: 10px;
    }

    .token-our-price {
      font-size: 24px;
      font-weight: 900;
      color: var(--accent-coral);
      margin-bottom: 12px;
    }

    .token-discount-pill {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      background: rgba(255, 71, 87, 0.1);
      color: var(--accent-coral);
      padding: 4px 10px;
      border-radius: 12px;
    }

    /* 案例中心展示 (图文混合) */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-item-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .case-item-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }

    .case-img-holder {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background-color: #f1f5f9;
    }

    .case-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .case-item-card:hover .case-img-holder img {
      transform: scale(1.05);
    }

    .case-info {
      padding: 20px;
    }

    .case-cat-tag {
      font-size: 11px;
      font-weight: 800;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 6px;
    }

    .case-info h4 {
      font-size: 16px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-info p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 行业方案与网络分布 */
    .industry-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .industry-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .industry-box h4 {
      font-size: 17px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .industry-box ul {
      list-style: none;
      font-size: 13px;
      color: var(--text-muted);
    }

    .industry-box ul li {
      margin-bottom: 8px;
      padding-left: 14px;
      position: relative;
    }

    .industry-box ul li::before {
      content: "•";
      position: absolute;
      left: 0;
      color: var(--accent-coral);
      font-weight: bold;
    }

    /* 加盟代理专区 */
    .agent-banner {
      background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 44px;
      display: grid;
      grid-template-columns: 1.3fr 0.7fr;
      gap: 32px;
      align-items: center;
      box-shadow: var(--shadow-md);
    }

    .agent-content h3 {
      font-size: 28px;
      font-weight: 900;
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .agent-content p {
      font-size: 15px;
      color: #e0e7ff;
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .agent-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 24px;
    }

    .agent-perk-item {
      background: rgba(255, 255, 255, 0.12);
      padding: 12px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-weight: 700;
    }

    .agent-side-card {
      background: #ffffff;
      color: var(--text-main);
      padding: 28px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
      text-align: center;
    }

    .agent-side-card h4 {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .agent-side-card p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    /* 用户评论 (6条) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: var(--accent-amber);
      font-size: 14px;
      margin-bottom: 10px;
    }

    .review-body {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

    .review-avatar-text {
      width: 38px;
      height: 38px;
      background: var(--bg-soft);
      color: var(--primary);
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      border: 1px solid var(--border-color);
    }

    .author-info h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .author-info p {
      font-size: 12px;
      color: var(--text-light);
    }

    /* FAQ 折叠面板 (>=10个) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item:hover {
      border-color: rgba(37, 99, 235, 0.4);
    }

    .faq-question {
      padding: 18px 22px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      user-select: none;
    }

    .faq-icon {
      font-size: 18px;
      font-weight: 400;
      transition: transform 0.25s ease;
      color: var(--primary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fcfdfe;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    .faq-item.active .faq-answer {
      max-height: 240px;
      padding: 0 22px 20px;
      border-top: 1px dashed var(--border-color);
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* 资讯与百科 */
    .news-encyclopedia-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .panel-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }

    .panel-box h3 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 18px;
      padding-bottom: 12px;
      border-bottom: 2px solid var(--border-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .articles-list {
      list-style: none;
    }

    .articles-list li {
      margin-bottom: 14px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-color);
    }

    .articles-list li:last-child {
      margin-bottom: 0;
      padding-bottom: 0;
      border-bottom: none;
    }

    .articles-list a {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      display: block;
      line-height: 1.5;
    }

    .articles-list a:hover {
      color: var(--primary);
      transform: translateX(4px);
    }

    .wiki-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 14px;
    }

    .wiki-tag-pill {
      font-size: 13px;
      padding: 6px 14px;
      border-radius: 20px;
      background: var(--bg-soft);
      border: 1px solid var(--border-color);
      color: var(--text-muted);
    }

    /* 联系我们与表单接入 */
    .contact-form-section {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .contact-form-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
    }

    .contact-info-col {
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      color: #ffffff;
      padding: 40px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-info-col h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .contact-info-col p {
      font-size: 14px;
      color: #94a3b8;
      line-height: 1.6;
      margin-bottom: 28px;
    }

    .contact-channels {
      list-style: none;
      font-size: 14px;
      margin-bottom: 30px;
    }

    .contact-channels li {
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: #e2e8f0;
    }

    .contact-channels strong {
      color: #ffffff;
      min-width: 75px;
    }

    .qr-holder {
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-sm);
      display: inline-block;
      max-width: 130px;
    }

    .qr-holder img {
      width: 100%;
      height: auto;
    }

    .qr-caption {
      font-size: 11px;
      color: #64748b;
      margin-top: 6px;
      text-align: center;
    }

    .form-wrapper {
      padding: 40px;
    }

    .form-wrapper h3 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 24px;
    }

    .submit-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }

    .form-group-full {
      grid-column: span 2;
    }

    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background-color: var(--bg-soft);
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    .btn-submit {
      grid-column: span 2;
      padding: 14px;
      background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 100%);
      color: #ffffff;
      font-size: 16px;
      font-weight: 800;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
      transition: var(--transition);
    }

    .btn-submit:hover {
      box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
      transform: translateY(-1px);
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 48px 0 24px;
      border-top: 1px solid #1e293b;
      margin-top: 48px;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 36px;
    }

    .footer-brand h4 {
      color: #ffffff;
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 13px;
      line-height: 1.6;
      color: #94a3b8;
    }

    .footer-links-col h5 {
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .footer-link-items {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .footer-link-items a {
      color: #cbd5e1;
      font-size: 13px;
      background: rgba(255, 255, 255, 0.05);
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-link-items a:hover {
      color: #ffffff;
      background: var(--primary);
      border-color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 13px;
    }

    .footer-bottom-links {
      display: flex;
      gap: 16px;
      align-items: center;
    }

    .footer-bottom-links a {
      color: #94a3b8;
    }

    .footer-bottom-links a:hover {
      color: #ffffff;
    }

    /* 悬浮小组件 */
    .float-assistants {
      position: fixed;
      right: 20px;
      bottom: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 44px;
      height: 44px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      cursor: pointer;
      color: var(--text-main);
      font-size: 18px;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid,
      .about-grid,
      .news-encyclopedia-grid,
      .contact-form-grid,
      .agent-banner {
        grid-template-columns: 1fr;
      }

      .service-grid,
      .case-gallery-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .token-grid,
      .industry-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .flow-steps {
        grid-template-columns: repeat(3, 1fr);
      }

      .hero-title {
        font-size: 32px;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }

      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }

      .nav-links.active {
        display: flex;
      }

      .nav-links li {
        width: 100%;
      }

      .nav-links li a {
        padding: 12px 16px;
      }

      .service-grid,
      .case-gallery-grid,
      .reviews-grid,
      .token-grid,
      .industry-grid,
      .flow-steps,
      .about-badges-grid,
      .submit-form,
      .footer-top-grid {
        grid-template-columns: 1fr;
      }

      .form-group-full,
      .btn-submit {
        grid-column: span 1;
      }

      .review-score-panel {
        flex-direction: column;
        align-items: flex-start;
      }

      .hero-title {
        font-size: 26px;
      }
    }