:root {
      --primary: #5c3cfc;
      --primary-hover: #4826ea;
      --secondary: #ff3b81;
      --accent: #00d2ff;
      --accent-warm: #ff8c37;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --border-focus: #c7d2fe;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(92, 60, 252, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-lg: 0 20px 35px -8px rgba(92, 60, 252, 0.12), 0 10px 15px -3px rgba(15, 23, 42, 0.05);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 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-tap-highlight-color: transparent;
    }

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-page);
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background: linear-gradient(180deg, #f3f4ff 0%, #fdf4f8 400px, #f8fafc 900px, #f8fafc 100%);
      line-height: 1.65;
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 16px;
    }

    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
      flex-shrink: 0;
    }

    .brand-area .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--primary);
      line-height: 1.2;
    }

    .brand-tag {
      font-size: 0.72rem;
      color: var(--text-muted);
      font-weight: 600;
      letter-spacing: 0.05em;
    }

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

    .nav-links li a {
      display: inline-block;
      padding: 8px 12px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-muted);
      text-decoration: none;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      white-space: nowrap;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background: #f1eeff;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .btn-nav-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 18px;
      font-size: 0.9rem;
      font-weight: 700;
      color: #ffffff !important;
      background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: 0 4px 12px rgba(92, 60, 252, 0.25);
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }

    .btn-nav-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(92, 60, 252, 0.35);
      background: linear-gradient(135deg, var(--primary-hover) 0%, #6d28d9 100%);
    }

    .btn-nav-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 16px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary);
      background: #ffffff;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-full);
      text-decoration: none;
      transition: var(--transition);
    }

    .btn-nav-outline:hover {
      border-color: var(--primary);
      background: #f5f3ff;
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 36px;
      height: 36px;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 4px;
    }

    .menu-toggle span {
      display: block;
      width: 100%;
      height: 2.5px;
      background-color: var(--text-main);
      border-radius: 2px;
      transition: var(--transition);
    }

    /* 主体布局 */
    main {
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 72px;
    }

    section {
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 48px auto;
    }

    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 14px;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--primary);
      background: #ede9fe;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      letter-spacing: 0.04em;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.02em;
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Hero 首屏 (无图片) */
    .hero-section {
      padding: 50px 0 20px 0;
      position: relative;
    }

    .hero-wrapper {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid #ddd6fe;
      box-shadow: 0 4px 14px rgba(92, 60, 252, 0.08);
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 24px;
    }

    .hero-pill .dot {
      width: 8px;
      height: 8px;
      background-color: var(--secondary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--secondary);
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 900;
      line-height: 1.22;
      letter-spacing: -0.03em;
      color: var(--text-main);
      margin-bottom: 22px;
    }

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

    .hero-subtitle {
      font-size: 1.18rem;
      color: var(--text-muted);
      max-width: 760px;
      line-height: 1.7;
      margin-bottom: 34px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 40px;
    }

    .btn-hero-official {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      padding: 14px 34px;
      font-size: 1.1rem;
      font-weight: 800;
      color: #ffffff;
      background: linear-gradient(135deg, #ff3b81 0%, #ff6b3d 100%);
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: 0 10px 24px -3px rgba(255, 59, 129, 0.4);
      transition: var(--transition);
      border: 2px solid rgba(255, 255, 255, 0.4);
    }

    .btn-hero-official:hover {
      transform: translateY(-2px) scale(1.02);
      box-shadow: 0 14px 30px -4px rgba(255, 59, 129, 0.5);
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 28px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    /* 科技感纯CSS数据面板(首屏视觉，无图) */
    .hero-dashboard-preview {
      width: 100%;
      background: #ffffff;
      border: 1px solid #e0e7ff;
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      text-align: left;
    }

    .hero-stat-card {
      padding: 16px;
      background: #f8faff;
      border-radius: var(--radius-md);
      border-left: 4px solid var(--primary);
    }

    .hero-stat-card:nth-child(2) { border-left-color: var(--secondary); }
    .hero-stat-card:nth-child(3) { border-left-color: var(--accent); }
    .hero-stat-card:nth-child(4) { border-left-color: var(--accent-warm); }

    .hero-stat-label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-light);
      margin-bottom: 6px;
    }

    .hero-stat-value {
      font-size: 1.5rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.2;
    }

    .hero-stat-note {
      font-size: 0.78rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 模型支持标签云 */
    .models-marquee-wrapper {
      margin-top: 36px;
      width: 100%;
      background: #ffffff;
      padding: 18px 24px;
      border-radius: var(--radius-full);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      gap: 12px;
      align-items: center;
    }

    .models-label {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .model-tags {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }

    .model-tag {
      font-size: 0.8rem;
      font-weight: 700;
      padding: 5px 12px;
      background: #f1f5f9;
      color: var(--text-main);
      border-radius: var(--radius-full);
      border: 1px solid #e2e8f0;
      transition: var(--transition);
    }

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

    /* 平台介绍板块 */
    .platform-features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      padding: 30px 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }

    .feature-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, #ede9fe 0%, #ddd6fe 100%);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: 900;
      margin-bottom: 20px;
    }

    .feature-card:nth-child(2) .feature-icon-box { background: #ffe4e6; color: var(--secondary); }
    .feature-card:nth-child(3) .feature-icon-box { background: #e0f2fe; color: #0284c7; }
    .feature-card:nth-child(4) .feature-icon-box { background: #ffedd5; color: #ea580c; }
    .feature-card:nth-child(5) .feature-icon-box { background: #dcfce7; color: #16a34a; }
    .feature-card:nth-child(6) .feature-icon-box { background: #f3e8ff; color: #9333ea; }

    .feature-title {
      font-size: 1.22rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .feature-text {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 一站式创作场景展区 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .scenario-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 22px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

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

    .scenario-tag {
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      background: #f3f0ff;
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 12px;
    }

    .scenario-title {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .scenario-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 素材与宣传图展示区 (非首屏) */
    .media-showcase-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-bottom: 24px;
    }

    .media-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .media-img-wrap {
      width: 100%;
      aspect-ratio: 16/9;
      overflow: hidden;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
    }

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

    .media-card:hover .media-img-wrap img {
      transform: scale(1.03);
    }

    .media-content {
      padding: 20px;
    }

    .media-title {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .media-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

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

    .banner-card img {
      width: 100%;
      height: 100%;
      aspect-ratio: 4/3;
      object-fit: cover;
      display: block;
    }

    /* 标准流程时间线 */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .process-card {
      background: #ffffff;
      padding: 24px 20px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 44px;
      height: 44px;
      margin: 0 auto 16px auto;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      color: #ffffff;
      font-weight: 900;
      font-size: 1.2rem;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测板块 */
    .comparison-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow: hidden;
      padding: 32px;
    }

    .rating-banner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      background: linear-gradient(135deg, #f5f3ff 0%, #fdf2f8 100%);
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid #ddd6fe;
      margin-bottom: 28px;
    }

    .rating-info {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .rating-score {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .rating-details h3 {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .rating-stars {
      color: #f59e0b;
      font-size: 1.2rem;
      letter-spacing: 2px;
    }

    .rating-summary {
      font-size: 0.95rem;
      color: var(--text-muted);
      max-width: 500px;
    }

    .comparison-table-wrapper {
      width: 100%;
      overflow-x: auto;
    }

    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

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

    .comp-table th {
      background: #f8fafc;
      color: var(--text-main);
      font-weight: 800;
    }

    .comp-table tr.highlight-row {
      background: #faf8ff;
      font-weight: 600;
    }

    .badge-win {
      display: inline-block;
      padding: 4px 10px;
      border-radius: var(--radius-full);
      font-size: 0.8rem;
      font-weight: 700;
      background: #ede9fe;
      color: var(--primary);
    }

    .badge-normal {
      display: inline-block;
      padding: 4px 10px;
      border-radius: var(--radius-full);
      font-size: 0.8rem;
      font-weight: 600;
      background: #f1f5f9;
      color: var(--text-muted);
    }

    /* Token 比价与代理板块 */
    .pricing-agency-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }

    .pricing-card, .agency-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .pricing-card-header, .agency-card-header {
      margin-bottom: 20px;
    }

    .card-title-lg {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    .price-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 24px;
    }

    .price-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 16px;
      background: #f8fafc;
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      font-weight: 600;
    }

    .price-val {
      color: var(--secondary);
      font-weight: 800;
    }

    .agency-benefits {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 24px;
    }

    .agency-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.92rem;
      color: var(--text-main);
    }

    .agency-item::before {
      content: "✓";
      color: #10b981;
      font-weight: 900;
      font-size: 1.1rem;
    }

    /* 客户评价板块 (6条) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 16px;
      transition: var(--transition);
    }

    .review-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }

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

    .reviewer-avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #ede9fe 0%, #ddd6fe 100%);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .reviewer-info h4 {
      font-size: 1rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .reviewer-info p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .review-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      font-style: italic;
    }

    .review-rating {
      color: #f59e0b;
      font-size: 0.9rem;
    }

    /* FAQ 折叠面板 (12条) */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

    .faq-question {
      width: 100%;
      padding: 18px 20px;
      text-align: left;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      background: transparent;
      border: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      gap: 16px;
    }

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

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--primary);
      transition: transform 0.25s ease;
      flex-shrink: 0;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #faf8ff;
    }

    .faq-answer-inner {
      padding: 16px 20px;
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.65;
      border-top: 1px solid #f1eeff;
    }

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

    .faq-item.active .faq-answer {
      max-height: 240px;
    }

    /* 需求匹配与表单板块 */
    .form-contact-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .contact-info-side {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 24px;
    }

    .contact-card-box {
      background: #f8faff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
    }

    .contact-item-row {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .contact-item-row:last-child {
      margin-bottom: 0;
    }

    .contact-item-label {
      font-weight: 700;
      color: var(--text-muted);
      min-width: 80px;
    }

    .qr-group {
      display: flex;
      align-items: center;
      gap: 20px;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
    }

    .qr-img-box {
      width: 100px;
      height: 100px;
      flex-shrink: 0;
    }

    .qr-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-radius: var(--radius-sm);
    }

    .qr-text-box h4 {
      font-size: 1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

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

    .form-side form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-label {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 11px 14px;
      font-size: 0.92rem;
      font-family: inherit;
      color: var(--text-main);
      background: #f8fafc;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      transition: var(--transition);
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(92, 60, 252, 0.12);
    }

    .btn-submit {
      padding: 13px;
      font-size: 1rem;
      font-weight: 800;
      color: #ffffff;
      background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      margin-top: 8px;
    }

    .btn-submit:hover {
      background: linear-gradient(135deg, var(--primary-hover) 0%, #6d28d9 100%);
      box-shadow: 0 6px 18px rgba(92, 60, 252, 0.3);
    }

    /* 资讯与动态板块 */
    .articles-links-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .articles-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      list-style: none;
    }

    .articles-links-list a {
      display: inline-block;
      padding: 8px 16px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
      background: #f8fafc;
      border-radius: var(--radius-full);
      text-decoration: none;
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .articles-links-list a:hover {
      color: var(--primary);
      border-color: var(--primary);
      background: #f5f3ff;
    }

    /* 底部收尾 (单一容器、明确对比度) */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 24px 0;
      margin-top: 40px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 40px;
    }

    .footer-brand {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .footer-brand .ai-page-logo {
      height: 36px;
      width: auto;
      align-self: flex-start;
    }

    .footer-brand-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      max-width: 340px;
      line-height: 1.6;
    }

    .footer-col-title {
      font-size: 1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }

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

    .footer-links a {
      font-size: 0.88rem;
      color: var(--text-muted);
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    .friendly-links-wrap {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      margin-bottom: 24px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
    }

    .friendly-label {
      font-size: 0.88rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .friendly-links-wrap a {
      font-size: 0.85rem;
      color: var(--text-muted);
      text-decoration: none;
      transition: var(--transition);
    }

    .friendly-links-wrap a:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      font-size: 0.82rem;
      color: var(--text-light);
    }

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

    .footer-bottom-links a {
      color: var(--text-light);
      text-decoration: none;
    }

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

    /* 浮动客服挂件 */
    .floating-support {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--primary);
      border: 1.5px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      text-decoration: none;
      font-size: 1.2rem;
      font-weight: 900;
      transition: var(--transition);
    }

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

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .platform-features-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-dashboard-preview {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        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 {
        display: block;
        padding: 10px 0;
        border-bottom: 1px solid #f1f5f9;
      }
      .hero-title {
        font-size: 2rem;
      }
      .hero-dashboard-preview {
        grid-template-columns: 1fr;
      }
      .platform-features-grid {
        grid-template-columns: 1fr;
      }
      .scenario-grid {
        grid-template-columns: 1fr;
      }
      .media-showcase-grid {
        grid-template-columns: 1fr;
      }
      .banner-gallery {
        grid-template-columns: repeat(2, 1fr);
      }
      .pricing-agency-grid {
        grid-template-columns: 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .form-contact-container {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        align-items: flex-start;
      }
    }