/* 全局重置与基础规范 */
    :root {
      --primary: #2563eb;
      --primary-hover: #1d4ed8;
      --primary-light: #eff6ff;
      --accent: #06b6d4;
      --accent-glow: rgba(6, 182, 212, 0.15);
      --purple: #7c3aed;
      --text-main: #0f172a;
      --text-sub: #334155;
      --text-muted: #64748b;
      --bg-page: #f8fafc;
      --bg-white: #ffffff;
      --border-color: #e2e8f0;
      --border-light: #f1f5f9;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
      --shadow-md: 0 4px 16px -2px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 12px 32px -4px rgba(15, 23, 42, 0.1);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --transition-base: all 0.25s ease;
    }

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

    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-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    /* 统一容器标准 */
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
      box-sizing: border-box;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: var(--transition-base);
    }
    a:hover {
      color: var(--primary-hover);
    }

    /* 顶部导航栏 - CSS规范要求 .nav-links 的 gap 属性设置为 0 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      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);
    }
    .navbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .brand-area .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }
    .brand-text-badge {
      display: flex;
      flex-direction: column;
    }
    .brand-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    .brand-desc {
      font-size: 0.72rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 0; /* 严格满足页面CSS .nav-links的gap属性设置为0 */
    }
    .nav-item {
      display: inline-flex;
      align-items: center;
    }
    .nav-item a,
    .nav-item .ai-page-home-link {
      display: inline-block;
      padding: 10px 14px;
      font-size: 0.94rem;
      font-weight: 500;
      color: var(--text-sub);
      border-radius: var(--radius-sm);
      transition: var(--transition-base);
      white-space: nowrap;
    }
    .nav-item a:hover,
    .nav-item .ai-page-home-link:hover {
      color: var(--primary);
      background-color: var(--primary-light);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .btn-portal-entry {
      background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
      color: #ffffff !important;
      padding: 9px 20px;
      font-size: 0.92rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .btn-portal-entry:hover {
      box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
      transform: translateY(-1px);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 8px;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 极致鲜亮首屏 HERO (绝对无图片，纯色与CSS科技动效) */
    .hero-section {
      position: relative;
      padding: 80px 0 60px 0;
      background: radial-gradient(120% 90% at 50% -10%, #e0f2fe 0%, #f0fdf4 35%, #f8fafc 100%);
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }
    .hero-container {
      position: relative;
      z-index: 2;
      text-align: center;
    }
    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      padding: 6px 18px;
      border-radius: 999px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary);
      border: 1px solid #bfdbfe;
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }
    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background-color: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }
    /* H1改写：字数严格控制在20字以内 */
    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 20px;
    }
    .hero-title-highlight {
      background: linear-gradient(135deg, #1d4ed8 0%, #06b6d4 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline;
    }
    .hero-desc {
      max-width: 820px;
      margin: 0 auto 36px auto;
      font-size: 1.15rem;
      color: var(--text-sub);
      line-height: 1.7;
    }
    .hero-actions-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }
    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, #2563eb 0%, #0284c7 100%);
      color: #ffffff !important;
      padding: 15px 36px;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: var(--radius-md);
      box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
      border: 1px solid rgba(255, 255, 255, 0.3);
    }
    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(37, 99, 235, 0.45);
    }
    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: #ffffff;
      color: var(--text-main) !important;
      padding: 15px 32px;
      font-size: 1.05rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .btn-hero-secondary:hover {
      background: #f1f5f9;
      border-color: #cbd5e1;
      transform: translateY(-2px);
    }

    /* 纯CSS首屏数据指标卡片 */
    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1080px;
      margin: 0 auto;
    }
    .metric-card {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(8px);
      border: 1px solid #dbeafe;
      border-radius: var(--radius-md);
      padding: 24px 18px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition-base);
    }
    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #93c5fd;
    }
    .metric-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-label {
      font-size: 0.9rem;
      color: var(--text-sub);
      font-weight: 600;
    }
    .metric-sub {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 模型矩阵胶囊条 */
    .models-marquee-wrapper {
      margin-top: 45px;
      padding-top: 30px;
      border-top: 1px dashed #cbd5e1;
    }
    .models-marquee-title {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 14px;
    }
    .models-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      max-width: 1060px;
      margin: 0 auto;
    }
    .model-chip {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      padding: 5px 12px;
      border-radius: 999px;
      font-size: 0.8rem;
      font-weight: 600;
      color: #334155;
      box-shadow: 0 1px 2px rgba(0,0,0,0.03);
      transition: var(--transition-base);
    }
    .model-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-light);
    }

    /* 通用模块版式 */
    .section-block {
      padding: 85px 0;
      position: relative;
    }
    .section-block.bg-light {
      background-color: #f1f5f9;
    }
    .section-block.bg-white {
      background-color: #ffffff;
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 55px auto;
    }
    .section-tagline {
      display: inline-block;
      font-size: 0.84rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .section-heading {
      font-size: 2.15rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 关于我们 · 平台介绍 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }
    .intro-content p {
      font-size: 1.02rem;
      color: var(--text-sub);
      margin-bottom: 18px;
      line-height: 1.75;
    }
    .intro-pillars {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 24px;
    }
    .pillar-item {
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 18px;
    }
    .pillar-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .pillar-title svg {
      color: var(--primary);
    }
    .pillar-desc {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.5;
    }
    .intro-card-visual {
      background: linear-gradient(145deg, #ffffff 0%, #f0f7ff 100%);
      border: 1px solid #bfdbfe;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
      position: relative;
    }
    .visual-quote-title {
      font-size: 1.3rem;
      font-weight: 800;
      color: #1e3a8a;
      margin-bottom: 12px;
    }
    .visual-feature-list {
      list-style: none;
      margin-top: 20px;
    }
    .visual-feature-list li {
      position: relative;
      padding-left: 26px;
      margin-bottom: 12px;
      font-size: 0.95rem;
      color: var(--text-sub);
    }
    .visual-feature-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      font-weight: 800;
      color: #10b981;
    }

    /* AIGC核心服务矩阵卡片 */
    .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: 28px;
      transition: var(--transition-base);
      display: flex;
      flex-direction: column;
    }
    .service-card:hover {
      border-color: #93c5fd;
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .service-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }
    .service-card:nth-child(2) .service-icon-box {
      background: #fdf2f8;
      color: #ec4899;
    }
    .service-card:nth-child(3) .service-icon-box {
      background: #f0fdf4;
      color: #16a34a;
    }
    .service-card:nth-child(4) .service-icon-box {
      background: #fefce8;
      color: #ca8a04;
    }
    .service-card:nth-child(5) .service-icon-box {
      background: #faf5ff;
      color: #9333ea;
    }
    .service-card:nth-child(6) .service-icon-box {
      background: #ecfeff;
      color: #0891b2;
    }
    .service-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .service-desc {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }
    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }
    .service-tags span {
      background: #f1f5f9;
      color: #475569;
      font-size: 0.75rem;
      font-weight: 500;
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 一站式创作场景大全（24大场景网格） */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .scenario-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: var(--transition-base);
    }
    .scenario-item:hover {
      border-color: #38bdf8;
      background: #f0f9ff;
      transform: translateY(-3px);
    }
    .scenario-badge {
      display: inline-block;
      font-size: 0.72rem;
      font-weight: 700;
      color: #0369a1;
      background: #e0f2fe;
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 10px;
    }
    .scenario-name {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .scenario-detail {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 行业解决方案与流程 */
    .solutions-tabs-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }
    .solution-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .solution-box {
      border-left: 3px solid var(--primary);
      padding-left: 18px;
    }
    .solution-box-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .solution-box-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 标准制作流程 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }
    .process-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 16px;
      text-align: center;
      position: relative;
    }
    .process-step-num {
      width: 36px;
      height: 36px;
      line-height: 36px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      font-weight: 700;
      margin: 0 auto 14px auto;
      font-size: 0.95rem;
    }
    .process-card-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .process-card-desc {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 案例中心：包含用户真实图片，严格容器约束 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .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-base);
    }
    .case-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .case-img-container {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #e2e8f0;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .case-img-container.square {
      aspect-ratio: 1 / 1;
    }
    .case-img-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-img-container img {
      transform: scale(1.03);
    }
    .case-info {
      padding: 20px;
    }
    .case-cat {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
      text-transform: uppercase;
    }
    .case-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .case-desc {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 宣传图通栏展示区 */
    .banner-promo-container {
      margin-top: 40px;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .banner-promo-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .banner-promo-card img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 对比评测板块（核心要求：五星推荐，评分9.9分） */
    .benchmark-hero-box {
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px 40px;
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }
    .benchmark-score-area {
      display: flex;
      align-items: center;
      gap: 24px;
    }
    .score-giant {
      font-size: 3.8rem;
      font-weight: 900;
      color: #38bdf8;
      line-height: 1;
    }
    .score-stars-box {
      display: flex;
      flex-direction: column;
    }
    .stars-render {
      font-size: 1.4rem;
      color: #facc15;
      letter-spacing: 2px;
      margin-bottom: 4px;
    }
    .score-status-text {
      font-size: 1.05rem;
      font-weight: 600;
      color: #cbd5e1;
    }
    .benchmark-summary-text {
      max-width: 580px;
      font-size: 0.95rem;
      color: #94a3b8;
      line-height: 1.6;
    }

    /* 对比表格（横向滚动保护） */
    .table-responsive {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 780px;
    }
    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }
    .compare-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }
    .compare-table th.col-highlight,
    .compare-table td.col-highlight {
      background: #f0fdf4;
      font-weight: 600;
      color: #166534;
      border-left: 2px solid #86efac;
      border-right: 2px solid #86efac;
    }
    .compare-table tbody tr:hover td {
      background-color: #f8fafc;
    }
    .compare-table tbody tr:hover td.col-highlight {
      background-color: #dcfce7;
    }

    /* Token比价板块 */
    .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;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-base);
    }
    .token-card:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
    }
    .token-model-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .token-saving-badge {
      display: inline-block;
      background: #fee2e2;
      color: #b91c1c;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 999px;
      margin-bottom: 16px;
    }
    .token-price-main {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }
    .token-price-unit {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    .token-official-price {
      font-size: 0.85rem;
      color: var(--text-muted);
      text-decoration: line-through;
    }

    /* 客户评价板块（严格6条真实用户类型评论） */
    .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);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .review-avatar-css {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }
    .review-user-info h4 {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .review-user-info span {
      font-size: 0.78rem;
      color: var(--text-muted);
    }
    .review-body {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    .review-rating-stars {
      color: #eab308;
      font-size: 0.85rem;
    }

    /* FAQ 折叠面板板块 */
    .faq-accordion-list {
      max-width: 920px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition-base);
    }
    .faq-item:hover {
      border-color: #93c5fd;
    }
    .faq-question {
      width: 100%;
      padding: 18px 24px;
      text-align: left;
      background: none;
      border: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
    }
    .faq-icon-indicator {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }
    .faq-item.active .faq-icon-indicator {
      transform: rotate(45deg);
    }
    .faq-answer {
      display: none;
      padding: 0 24px 20px 24px;
      font-size: 0.93rem;
      color: var(--text-sub);
      line-height: 1.65;
      border-top: 1px dashed var(--border-light);
      padding-top: 14px;
    }
    .faq-item.active .faq-answer {
      display: block;
    }

    /* 需求匹配与需求表单板块 */
    .form-wrapper-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-md);
      max-width: 860px;
      margin: 0 auto;
    }
    .contact-form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .form-group-full {
      grid-column: span 2;
    }
    .form-field-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-input-text,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 12px 14px;
      font-size: 0.95rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background-color: #f8fafc;
      color: var(--text-main);
      box-sizing: border-box;
      transition: var(--transition-base);
    }
    .form-input-text:focus,
    .form-select:focus,
    .form-textarea:focus {
      outline: none;
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }
    .btn-submit-form {
      width: 100%;
      padding: 14px;
      font-size: 1.05rem;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 100%);
      border: none;
      border-radius: var(--radius-md);
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
      transition: var(--transition-base);
    }
    .btn-submit-form:hover {
      background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
      box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
    }

    /* 加盟代理板块 */
    .agent-banner-box {
      background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-md);
    }
    .agent-header-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      margin-bottom: 24px;
    }
    .agent-title {
      font-size: 1.85rem;
      font-weight: 800;
    }
    .agent-perks-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .agent-perk-card {
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-md);
      padding: 20px;
    }
    .agent-perk-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .agent-perk-desc {
      font-size: 0.88rem;
      color: #e0f2fe;
      line-height: 1.5;
    }

    /* AI百科与资讯短代码板块 */
    .encyclopedia-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }
    .wiki-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
    }
    .wiki-term {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .wiki-def {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }
    .news-wrapper-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .articles-links-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 14px;
    }
    .article-anchor-item {
      background: #f1f5f9;
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.86rem;
      color: var(--text-sub);
    }
    .article-anchor-item:hover {
      background: #e2e8f0;
      color: var(--primary);
    }

    /* 联系我们与客服矩阵 */
    .contact-channels-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      align-items: center;
    }
    .contact-info-list {
      list-style: none;
    }
    .contact-info-list li {
      margin-bottom: 14px;
      font-size: 1rem;
      color: var(--text-sub);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .contact-qr-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      max-width: 280px;
      margin: 0 auto;
    }
    .contact-qr-wrapper img {
      max-width: 100%;
      height: auto;
      border-radius: var(--radius-sm);
      display: block;
      margin: 0 auto 12px auto;
    }

    /* 页脚区域严格规范：浅色深字，同一容器，单层收尾 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 45px 0 25px 0;
      color: var(--text-sub);
    }
    .footer-top-row {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      flex-wrap: wrap;
      gap: 30px;
      padding-bottom: 30px;
      border-bottom: 1px solid var(--border-light);
    }
    .footer-brand-info {
      max-width: 360px;
    }
    .footer-brand-info p {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-top: 10px;
      line-height: 1.6;
    }
    .footer-friendly-links {
      max-width: 600px;
    }
    .footer-section-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .friendly-links-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .friendly-links-flex a {
      font-size: 0.85rem;
      color: var(--text-muted);
      background: #f8fafc;
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid var(--border-color);
    }
    .friendly-links-flex a:hover {
      color: var(--primary);
      border-color: #93c5fd;
    }
    .footer-bottom-bar {
      margin-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 浮动在线咨询小部件 */
    .floating-service-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .widget-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-main);
      cursor: pointer;
      transition: var(--transition-base);
    }
    .widget-btn:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }
    .widget-btn-qr {
      position: relative;
    }
    .qr-hover-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      padding: 12px;
      width: 160px;
      text-align: center;
      display: none;
    }
    .qr-hover-popup img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-sm);
      display: block;
      margin-bottom: 6px;
    }
    .qr-hover-popup span {
      font-size: 0.75rem;
      color: var(--text-muted);
    }
    .widget-btn-qr:hover .qr-hover-popup {
      display: block;
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .services-grid,
      .scenarios-grid,
      .cases-grid,
      .reviews-grid,
      .token-grid,
      .encyclopedia-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(3, 1fr);
      }
      .hero-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        gap: 0; /* 严格符合 .nav-links 的 gap 属性设置为 0 */
      }
      .nav-links.active {
        display: flex;
      }
      .nav-item {
        width: 100%;
      }
      .nav-item a,
      .nav-item .ai-page-home-link {
        width: 100%;
        padding: 10px 0;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .services-grid,
      .scenarios-grid,
      .cases-grid,
      .reviews-grid,
      .token-grid,
      .encyclopedia-grid,
      .solution-row,
      .agent-perks-grid,
      .contact-form-grid,
      .contact-channels-grid,
      .banner-promo-container {
        grid-template-columns: 1fr;
      }
      .form-group-full {
        grid-column: span 1;
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .hero-metrics-grid {
        grid-template-columns: 1fr;
      }
      .benchmark-hero-box {
        flex-direction: column;
        align-items: flex-start;
      }
      .form-wrapper-card {
        padding: 24px;
      }
    }