:root {
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --accent-pink: #ec4899;
      --accent-orange: #f97316;
      --accent-cyan: #06b6d4;
      --accent-violet: #8b5cf6;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --border-focus: #c7d2fe;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(79, 70, 229, 0.08);
      --shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.08);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --gradient-brand: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      --gradient-warm: linear-gradient(135deg, #f97316 0%, #ec4899 100%);
      --gradient-cool: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
      --gradient-card: linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(236, 72, 153, 0.04) 0%, transparent 40%);
      background-attachment: fixed;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

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

    /* 容器基准 */
    .container {
      width: 100%;
      max-width: 1200px;
      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);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    }

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

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

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

    .brand-text-name {
      font-size: 1.25rem;
      font-weight: 800;
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

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

    .nav-links li a {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 14px;
      border-radius: 6px;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background: rgba(79, 70, 229, 0.06);
    }

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

    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 20px;
      border-radius: 30px;
      font-size: 0.875rem;
      font-weight: 600;
      color: #ffffff;
      background: var(--gradient-brand);
      box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
      border: none;
      cursor: pointer;
    }

    .btn-portal:hover {
      opacity: 0.95;
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(79, 70, 229, 0.35);
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .nav-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: all 0.3s ease;
    }

    /* 首屏 Hero（无图片，纯科技潮流排版） */
    .hero-section {
      padding: 80px 0 60px;
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(79, 70, 229, 0.08);
      border: 1px solid rgba(79, 70, 229, 0.2);
      color: var(--primary);
      padding: 6px 16px;
      border-radius: 30px;
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 24px;
    }

    .hero-badge-pulse {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
    }

    .hero-title {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .btn-main-hero {
      padding: 14px 34px;
      font-size: 1.05rem;
      font-weight: 700;
      color: #ffffff;
      background: var(--gradient-brand);
      border-radius: 32px;
      box-shadow: 0 8px 24px rgba(124, 58, 237, 0.35);
    }

    .btn-main-hero:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(124, 58, 237, 0.45);
    }

    .btn-secondary-hero {
      padding: 14px 30px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 32px;
      box-shadow: var(--shadow-sm);
    }

    .btn-secondary-hero:hover {
      background: #f1f5f9;
      border-color: #cbd5e1;
    }

    /* 首屏数据卡片指标 */
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .metric-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 24px 16px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: transform 0.3s ease, border-color 0.3s ease;
    }

    .metric-card:hover {
      transform: translateY(-4px);
      border-color: var(--accent-violet);
    }

    .metric-num {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .metric-num span {
      font-size: 1.1rem;
      color: var(--accent-pink);
    }

    .metric-label {
      font-size: 0.875rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 通用章节规范 */
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }

    .section-head {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto;
    }

    /* 平台介绍与模型矩阵 */
    .platform-intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
      margin-bottom: 40px;
    }

    .intro-text-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .intro-text-box h3 {
      font-size: 1.4rem;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .intro-text-box p {
      color: var(--text-muted);
      margin-bottom: 18px;
      font-size: 0.95rem;
    }

    .model-tags-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .model-tags-box h3 {
      font-size: 1.25rem;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .model-badge-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-badge {
      background: #f1f5f9;
      color: var(--text-main);
      font-size: 0.8125rem;
      font-weight: 600;
      padding: 6px 12px;
      border-radius: 6px;
      border: 1px solid #e2e8f0;
      transition: all 0.2s ease;
    }

    .model-badge:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    /* 核心服务与一站式能力卡片 */
    .service-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;
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .service-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--gradient-brand);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.15rem;
      margin-bottom: 20px;
    }

    .service-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

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

    /* 行业解决方案与素材图展示 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .scenario-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .scenario-item h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .scenario-item h4::before {
      content: "";
      width: 6px;
      height: 18px;
      background: var(--gradient-warm);
      border-radius: 3px;
    }

    .scenario-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .visual-showcase-row {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      margin-top: 32px;
    }

    .showcase-media-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      background: #fff;
    }

    .showcase-media-box img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }

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

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

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

    .step-node {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 16px;
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 36px;
      height: 36px;
      line-height: 36px;
      border-radius: 50%;
      background: var(--gradient-brand);
      color: #ffffff;
      font-weight: 800;
      margin: 0 auto 12px;
      font-size: 1rem;
    }

    .step-node h4 {
      font-size: 1rem;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .step-node p {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 对比评测（五星 9.9分） */
    .eval-card-main {
      background: #ffffff;
      border: 2px solid #e0e7ff;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .eval-header-summary {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 28px;
    }

    .eval-score-badge {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .eval-score-num {
      font-size: 3rem;
      font-weight: 900;
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1;
    }

    .eval-stars {
      color: #f59e0b;
      font-size: 1.35rem;
    }

    .eval-score-meta {
      font-size: 0.875rem;
      color: var(--text-muted);
    }

    .compare-table-wrap {
      width: 100%;
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compare-table th, .compare-table td {
      padding: 14px 18px;
      font-size: 0.9375rem;
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table th {
      background: #f8fafc;
      color: var(--text-main);
      font-weight: 700;
    }

    .compare-table .highlight-col {
      background: rgba(79, 70, 229, 0.04);
      font-weight: 700;
      color: var(--primary);
    }

    /* Token比价参考 */
    .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);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }

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

    .featured-tag {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--gradient-warm);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
    }

    .price-card h3 {
      font-size: 1.25rem;
      margin-bottom: 10px;
    }

    .price-val {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      margin: 16px 0 20px;
    }

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

    .price-features {
      list-style: none;
      margin-bottom: 24px;
    }

    .price-features li {
      font-size: 0.875rem;
      color: var(--text-muted);
      padding: 6px 0;
      border-bottom: 1px dashed #f1f5f9;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .price-features li::before {
      content: "✓";
      color: #10b981;
      font-weight: bold;
    }

    /* 需求匹配与表单 */
    .match-form-container {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .match-info-side h3 {
      font-size: 1.5rem;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .match-info-side p {
      color: var(--text-muted);
      margin-bottom: 24px;
      font-size: 0.9375rem;
    }

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

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

    .form-group label {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.9375rem;
      background: #f8fafc;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
    }

    textarea.form-control {
      min-height: 90px;
      resize: vertical;
    }

    .btn-submit-form {
      padding: 14px;
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      background: var(--gradient-brand);
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
    }

    .btn-submit-form:hover {
      opacity: 0.95;
    }

    /* 用户评论卡片 (6条) */
    .review-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: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-user-head {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .review-avatar-char {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--gradient-brand);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }

    .review-name {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .review-role {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    .review-content {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* FAQ 折叠面板 (>=10条) */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: border-color 0.2s;
    }

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

    .faq-question {
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-main);
      user-select: none;
    }

    .faq-icon {
      font-size: 1.25rem;
      font-weight: 300;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fbfcfe;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 0 20px 18px;
    }

    .faq-answer p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 行业资讯与百科 */
    .info-dual-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }

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

    .info-card-box h3 {
      font-size: 1.25rem;
      margin-bottom: 16px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .article-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-links-list li a {
      font-size: 0.9rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
    }

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

    .wiki-item {
      margin-bottom: 16px;
      padding-bottom: 14px;
      border-bottom: 1px dashed var(--border-color);
    }

    .wiki-item:last-child {
      border-bottom: none;
      margin-bottom: 0;
      padding-bottom: 0;
    }

    .wiki-item h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .wiki-item p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 加盟代理板块 */
    .agent-banner {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      border-radius: var(--radius-lg);
      padding: 48px;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

    .agent-content h3 {
      font-size: 1.75rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: #ffffff;
    }

    .agent-content p {
      color: #cbd5e1;
      max-width: 600px;
      font-size: 0.95rem;
    }

    .btn-agent-apply {
      padding: 14px 32px;
      background: var(--gradient-warm);
      color: #ffffff;
      font-weight: 700;
      border-radius: 30px;
      box-shadow: 0 4px 16px rgba(249, 115, 22, 0.4);
    }

    /* 联系我们与二维码 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 32px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .contact-details-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    .contact-details-list strong {
      color: var(--text-main);
    }

    .kefu-qrcode-box {
      text-align: center;
      background: #f8fafc;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }

    .kefu-qrcode-box img {
      width: 140px;
      height: 140px;
      border-radius: 8px;
      margin-bottom: 12px;
      border: 1px solid #e2e8f0;
    }

    .kefu-qrcode-box span {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
    }

    /* 友情链接与统一页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 32px;
      color: var(--text-muted);
      font-size: 0.875rem;
    }

    .footer-links-row {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      padding-bottom: 24px;
      margin-bottom: 24px;
      border-bottom: 1px solid #f1f5f9;
    }

    .footer-links-label {
      font-weight: 700;
      color: var(--text-main);
    }

    .footer-links-row a {
      color: var(--text-muted);
      transition: color 0.2s;
    }

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

    .footer-bottom-flex {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    .footer-copy {
      color: var(--text-light);
      font-size: 0.8125rem;
    }

    /* 浮动工具栏 */
    .float-toolbar {
      position: fixed;
      right: 20px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }

    .float-btn {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--primary);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      font-weight: bold;
      border: 1px solid var(--border-color);
      cursor: pointer;
      transition: transform 0.2s;
    }

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

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .service-grid, .price-grid, .review-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .step-timeline {
        grid-template-columns: repeat(3, 1fr);
      }
      .visual-showcase-row {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        position: relative;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 8px 16px rgba(0,0,0,0.05);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-toggle {
        display: block;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-metrics {
        grid-template-columns: 1fr 1fr;
      }
      .platform-intro-grid, .match-form-container, .info-dual-grid, .contact-grid {
        grid-template-columns: 1fr;
      }
      .service-grid, .scenario-grid, .price-grid, .review-grid {
        grid-template-columns: 1fr;
      }
      .step-timeline {
        grid-template-columns: 1fr;
      }
      .banner-strip-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .agent-banner {
        padding: 30px;
        text-align: center;
        justify-content: center;
      }
    }