/* 基础重置与明艳橙风格设计变量 */
    :root {
      --primary: #FF5A1F;
      --primary-hover: #E44811;
      --primary-light: #FFF2EB;
      --primary-gradient: linear-gradient(135deg, #FF6B35 0%, #FF3D00 100%);
      --accent-gold: #FFB300;
      --text-dark: #1E2329;
      --text-body: #4A5568;
      --text-muted: #718096;
      --bg-page: #FAF9F6;
      --bg-surface: #FFFFFF;
      --bg-subtle: #FFF7F2;
      --border-color: #F0E6E0;
      --border-hover: #FFCDB5;
      --shadow-sm: 0 2px 8px rgba(255, 90, 31, 0.06);
      --shadow-md: 0 8px 24px rgba(255, 90, 31, 0.08);
      --shadow-lg: 0 16px 36px rgba(255, 90, 31, 0.12);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-pill: 9999px;
      --container-max: 1200px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-dark);
      line-height: 1.65;
      overflow-x: hidden;
    }

    /* 统一居中容器规范 */
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

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

    .brand-logo-area img.ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

    .brand-text {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-dark);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .brand-badge {
      font-size: 0.72rem;
      font-weight: 700;
      background: var(--primary);
      color: #fff;
      padding: 2px 8px;
      border-radius: var(--radius-pill);
      letter-spacing: 0;
    }

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

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-body);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background-color: var(--primary-light);
    }

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

    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 700;
      color: #FFFFFF;
      background: var(--primary-gradient);
      border-radius: var(--radius-pill);
      box-shadow: 0 4px 14px rgba(255, 61, 0, 0.35);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .btn-portal:hover {
      box-shadow: 0 6px 20px rgba(255, 61, 0, 0.5);
      transform: translateY(-1px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.6rem;
      color: var(--text-dark);
      cursor: pointer;
      padding: 4px;
    }

    /* 移动端菜单抽屉 */
    .mobile-nav {
      display: none;
      position: absolute;
      top: 76px;
      left: 0;
      width: 100%;
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      padding: 16px 24px;
    }

    .mobile-nav.open {
      display: block;
    }

    .mobile-nav ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .mobile-nav ul li a {
      display: block;
      padding: 10px 14px;
      font-weight: 600;
      color: var(--text-body);
      border-radius: var(--radius-sm);
    }

    .mobile-nav ul li a:hover {
      background: var(--primary-light);
      color: var(--primary);
    }

    /* 通用区块排版 */
    section {
      padding-top: 80px;
      padding-bottom: 80px;
      position: relative;
    }

    .section-head {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 52px auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--primary);
      background-color: var(--primary-light);
      border: 1px solid var(--border-hover);
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
      text-transform: uppercase;
    }

    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: var(--text-dark);
      line-height: 1.35;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 首屏 Hero - 无图片严格要求 */
    .hero-section {
      padding-top: 90px;
      padding-bottom: 95px;
      background: radial-gradient(circle at 50% 10%, #FFF3EB 0%, #FAF9F6 70%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

    .hero-glow-1 {
      position: absolute;
      width: 450px;
      height: 450px;
      top: -100px;
      left: 10%;
      background: rgba(255, 122, 0, 0.12);
      filter: blur(80px);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-glow-2 {
      position: absolute;
      width: 400px;
      height: 400px;
      top: 50px;
      right: 12%;
      background: rgba(255, 179, 0, 0.14);
      filter: blur(90px);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FFFFFF;
      border: 1px solid var(--border-hover);
      padding: 6px 18px;
      border-radius: var(--radius-pill);
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-badge-pill span.point {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--primary);
      display: inline-block;
      animation: pulse 1.8s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.9); opacity: 0.7; }
      50% { transform: scale(1.3); opacity: 1; }
      100% { transform: scale(0.9); opacity: 0.7; }
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 900;
      color: var(--text-dark);
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 22px;
    }

    .hero-title .highlight {
      color: var(--primary);
      position: relative;
      display: inline-block;
    }

    .hero-subtitle {
      font-size: 1.18rem;
      color: var(--text-body);
      max-width: 780px;
      margin: 0 auto 36px auto;
      line-height: 1.75;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 15px 36px;
      font-size: 1.08rem;
      font-weight: 800;
      color: #FFFFFF;
      background: var(--primary-gradient);
      border-radius: var(--radius-pill);
      box-shadow: 0 8px 24px rgba(255, 61, 0, 0.38);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(255, 61, 0, 0.48);
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 15px 32px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-dark);
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-pill);
      box-shadow: var(--shadow-sm);
    }

    .btn-hero-secondary:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }

    /* 首屏数据指标卡片群 - 几何科技质感 */
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 36px;
    }

    .metric-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 24px 18px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

    .metric-card:hover {
      border-color: var(--border-hover);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .metric-card .num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-card .label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* 聚合大模型矩阵条 */
    .models-bar-section {
      padding-top: 30px;
      padding-bottom: 30px;
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
    }

    .models-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      align-items: center;
      gap: 10px;
    }

    .model-chip {
      background: var(--bg-subtle);
      border: 1px solid var(--border-color);
      color: var(--text-body);
      font-size: 0.85rem;
      font-weight: 700;
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }

    .model-chip:hover {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    /* 平台介绍 */
    .about-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-md);
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 16px;
    }

    .about-text p {
      font-size: 1.02rem;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 20px;
    }

    .about-feature-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .about-feature-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-dark);
    }

    .about-feature-item svg {
      flex-shrink: 0;
      width: 20px;
      height: 20px;
      color: var(--primary);
    }

    .about-visual-card {
      background: linear-gradient(135deg, #FFF6F0 0%, #FFECE0 100%);
      border: 1px solid var(--border-hover);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .visual-stat-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 14px 0;
      border-bottom: 1px dashed var(--border-hover);
    }

    .visual-stat-item:last-child {
      border-bottom: none;
    }

    .visual-stat-item .title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-body);
    }

    .visual-stat-item .val {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--primary);
    }

    /* AIGC 服务能力卡片网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .service-card:hover {
      border-color: var(--primary);
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
    }

    .service-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      margin-bottom: 20px;
    }

    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .service-card p {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.65;
      flex-grow: 1;
    }

    .service-card .card-footer-tags {
      margin-top: 18px;
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .service-tag {
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--primary);
      background: #FFF4EE;
      padding: 2px 8px;
      border-radius: 4px;
    }

    /* 行业解决方案与全景展示 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .solution-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .solution-item:hover {
      border-color: var(--border-hover);
      box-shadow: var(--shadow-md);
    }

    .solution-item h3 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .solution-item h3::before {
      content: "";
      width: 6px;
      height: 18px;
      background: var(--primary);
      border-radius: 2px;
      display: inline-block;
    }

    .solution-item p {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 案例中心：图文并茂展示真实落地 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .case-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .case-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }

    .case-media-box {
      width: 100%;
      height: 220px;
      overflow: hidden;
      background: #F4EBE6;
    }

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

    .case-card:hover .case-media-box img {
      transform: scale(1.04);
    }

    .case-body {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .case-body h3 {
      font-size: 1.18rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 8px;
    }

    .case-body p {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 14px;
      flex-grow: 1;
    }

    .case-result-badge {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 10px;
      border-radius: var(--radius-pill);
      align-self: flex-start;
    }

    /* 宣传展示 Banner */
    .banner-media-container {
      margin: 40px auto 0 auto;
      max-width: var(--container-max);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
    }

    /* 评测与对比表格 - 严格遵循评测要求 */
    .eval-highlight-box {
      background: linear-gradient(135deg, #FF6B35 0%, #FF3D00 100%);
      border-radius: var(--radius-lg);
      color: #FFFFFF;
      padding: 36px 40px;
      margin-bottom: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      box-shadow: 0 12px 30px rgba(255, 61, 0, 0.28);
    }

    .eval-highlight-box .left-info h3 {
      font-size: 1.85rem;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .eval-highlight-box .left-info p {
      font-size: 1.05rem;
      opacity: 0.95;
    }

    .eval-score-wrap {
      display: flex;
      align-items: baseline;
      gap: 8px;
      background: rgba(255, 255, 255, 0.18);
      padding: 14px 28px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.3);
    }

    .eval-score-wrap .score-big {
      font-size: 3.4rem;
      font-weight: 900;
      line-height: 1;
    }

    .eval-score-wrap .score-total {
      font-size: 1.2rem;
      font-weight: 700;
      opacity: 0.85;
    }

    .eval-score-wrap .stars {
      color: #FFD54F;
      font-size: 1.3rem;
      margin-left: 10px;
    }

    .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;
      min-width: 640px;
    }

    .comparison-table th,
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

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

    .comparison-table th.highlight-col,
    .comparison-table td.highlight-col {
      background: #FFF9F5;
      font-weight: 700;
      color: var(--primary);
    }

    /* 标准制作流程 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .flow-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .flow-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
    }

    .step-index-circle {
      width: 44px;
      height: 44px;
      line-height: 44px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #FFFFFF;
      font-size: 1.15rem;
      font-weight: 800;
      margin: 0 auto 16px auto;
      box-shadow: 0 4px 10px rgba(255, 61, 0, 0.3);
    }

    .flow-card h3 {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 8px;
    }

    .flow-card p {
      font-size: 0.9rem;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* Token 比价看板 */
    .token-price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .price-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

    .price-card.featured {
      border: 2px solid var(--primary);
      position: relative;
      transform: scale(1.02);
      box-shadow: var(--shadow-md);
    }

    .price-card.featured::before {
      content: "爆款推荐";
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 2px 14px;
      border-radius: var(--radius-pill);
    }

    .price-card h3 {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .price-rate {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .price-rate small {
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-muted);
    }

    .price-features {
      list-style: none;
      margin: 20px 0 28px 0;
      text-align: left;
    }

    .price-features li {
      padding: 8px 0;
      font-size: 0.92rem;
      color: var(--text-body);
      border-bottom: 1px dashed var(--border-color);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 6条真实用户评价 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .review-card:hover {
      border-color: var(--border-hover);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }

    .reviewer-avatar-placeholder {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      font-weight: 800;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--border-hover);
    }

    .reviewer-info h3 {
      font-size: 1.02rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 2px;
    }

    .reviewer-info p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .review-text {
      font-size: 0.94rem;
      color: var(--text-body);
      line-height: 1.7;
      flex-grow: 1;
    }

    /* FAQ 手风琴折叠面板 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item:hover {
      border-color: var(--border-hover);
    }

    .faq-header {
      padding: 18px 24px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-dark);
      user-select: none;
    }

    .faq-header:hover {
      color: var(--primary);
    }

    .faq-icon-arrow {
      width: 18px;
      height: 18px;
      transition: transform 0.25s ease;
      flex-shrink: 0;
      color: var(--primary);
    }

    .faq-item.active .faq-icon-arrow {
      transform: rotate(180deg);
    }

    .faq-content {
      display: none;
      padding: 0 24px 20px 24px;
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.75;
      border-top: 1px solid #FAF4F0;
    }

    .faq-item.active .faq-content {
      display: block;
    }

    /* AI 百科 & 资讯中心 */
    .wiki-news-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .wiki-card, .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .wiki-card h3, .news-card h3 {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 2px solid var(--primary-light);
    }

    .wiki-list, .news-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .news-list li a, .wiki-list li {
      font-size: 0.96rem;
      color: var(--text-body);
      display: flex;
      align-items: center;
      gap: 10px;
    }

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

    .news-list li span.dot, .wiki-list li span.dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--primary);
      flex-shrink: 0;
    }

    /* 加盟代理与商业合作 */
    .partner-card-box {
      background: linear-gradient(135deg, #FFF9F5 0%, #FFF2EB 100%);
      border: 2px dashed var(--primary);
      border-radius: var(--radius-lg);
      padding: 44px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
    }

    .partner-info h3 {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--text-dark);
      margin-bottom: 14px;
    }

    .partner-info p {
      font-size: 1rem;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 22px;
    }

    .partner-points {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .partner-points li {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-dark);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .partner-action-box {
      background: #FFFFFF;
      padding: 30px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      text-align: center;
      border: 1px solid var(--border-color);
    }

    .partner-action-box h4 {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .partner-action-box p {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    /* 需求匹配与提交表单 */
    .contact-form-section {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .contact-form-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 48px;
      align-items: start;
    }

    .contact-info-col h3 {
      font-size: 1.7rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 16px;
    }

    .contact-info-col p {
      font-size: 0.98rem;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 28px;
    }

    .contact-detail-items {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 30px;
    }

    .detail-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.96rem;
      font-weight: 600;
      color: var(--text-dark);
    }

    .detail-item svg {
      width: 20px;
      height: 20px;
      color: var(--primary);
    }

    .qrcode-wrapper {
      display: inline-block;
      padding: 12px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
    }

    .qrcode-wrapper img {
      width: 140px;
      height: 140px;
      object-fit: cover;
      margin-bottom: 8px;
    }

    .qrcode-wrapper span {
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--text-muted);
      display: block;
    }

    .form-box {
      background: var(--bg-subtle);
      border: 1px solid var(--border-hover);
      border-radius: var(--radius-lg);
      padding: 38px;
      box-shadow: var(--shadow-sm);
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      color: var(--text-dark);
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(255, 90, 31, 0.15);
    }

    textarea.form-control {
      min-height: 110px;
      resize: vertical;
    }

    .btn-submit {
      width: 100%;
      padding: 14px;
      font-size: 1.05rem;
      font-weight: 800;
      color: #FFFFFF;
      background: var(--primary-gradient);
      border: none;
      border-radius: var(--radius-pill);
      cursor: pointer;
      box-shadow: 0 6px 18px rgba(255, 61, 0, 0.35);
      transition: var(--transition);
    }

    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(255, 61, 0, 0.45);
    }

    /* 页脚与友情链接规范对齐 */
    .site-footer {
      background-color: #1A1D20;
      color: #A0AEC0;
      padding-top: 60px;
      padding-bottom: 36px;
      border-top: 1px solid #2D3748;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col h3 {
      font-size: 1.1rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 18px;
    }

    .footer-col p {
      font-size: 0.9rem;
      line-height: 1.7;
      color: #CBD5E0;
      margin-bottom: 16px;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links-list li a {
      font-size: 0.9rem;
      color: #A0AEC0;
    }

    .footer-links-list li a:hover {
      color: var(--primary);
    }

    .friend-links-area {
      border-top: 1px solid #2D3748;
      padding-top: 26px;
      margin-bottom: 26px;
    }

    .friend-links-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: #E2E8F0;
      margin-bottom: 12px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-list a {
      font-size: 0.86rem;
      color: #A0AEC0;
    }

    .friend-links-list a:hover {
      color: var(--primary);
    }

    .footer-bottom-bar {
      border-top: 1px solid #2D3748;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.85rem;
      color: #718096;
    }

    /* 浮动客服入口与返回顶部 */
    .float-widgets {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: #FFFFFF;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      cursor: pointer;
      border: 1px solid var(--border-hover);
      transition: var(--transition);
      position: relative;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #FFFFFF;
      transform: scale(1.08);
    }

    .float-kefu-popover {
      display: none;
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #FFFFFF;
      padding: 14px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-hover);
      text-align: center;
      width: 170px;
    }

    .float-btn.kefu-btn:hover .float-kefu-popover {
      display: block;
    }

    .float-kefu-popover img {
      width: 140px;
      height: 140px;
      margin-bottom: 6px;
    }

    .float-kefu-popover span {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--text-dark);
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .services-grid, .cases-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-box, .partner-card-box, .contact-form-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
    }

    @media (max-width: 768px) {
      .nav-links, .header-actions .btn-portal {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .hero-metrics {
        grid-template-columns: 1fr;
      }
      .services-grid, .solutions-grid, .cases-grid, .reviews-grid, .token-price-grid, .wiki-news-wrapper {
        grid-template-columns: 1fr;
      }
      .flow-steps {
        grid-template-columns: 1fr;
      }
      .partner-points {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .eval-highlight-box {
        flex-direction: column;
        text-align: center;
      }
      .eval-score-wrap {
        width: 100%;
        justify-content: center;
      }
      .about-feature-list {
        grid-template-columns: 1fr;
      }
    }