:root {
      --primary: #f59e0b;
      --primary-light: #fbbf24;
      --primary-glow: #fef08a;
      --primary-dark: #b45309;
      --accent: #d97706;
      --dark: #0f172a;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --bg-page: #fffdf5;
      --bg-card: #ffffff;
      --bg-alt: #fefce8;
      --border-color: #fef08a;
      --border-strong: #fde047;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --shadow-sm: 0 2px 4px rgba(245, 158, 11, 0.05);
      --shadow-md: 0 8px 24px rgba(245, 158, 11, 0.12);
      --shadow-lg: 0 16px 36px rgba(217, 119, 6, 0.16);
      --container-width: 1200px;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* 容器体系统一对齐规范 */
    .site-container {
      width: 100%;
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 253, 245, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid var(--border-color);
      box-shadow: 0 4px 20px rgba(245, 158, 11, 0.08);
      transition: all 0.3s ease;
    }

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

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

    .brand-box .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
    }

    .brand-title {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--dark);
      letter-spacing: -0.5px;
    }

    .brand-title span {
      color: var(--accent);
      background: linear-gradient(135deg, #d97706, #f59e0b);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

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

    .nav-links li a {
      text-decoration: none;
      color: var(--text-main);
      font-weight: 600;
      font-size: 0.95rem;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      display: inline-block;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary-dark);
      background-color: #fef08a;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: var(--radius-md);
      text-decoration: none;
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
      color: #78350f;
      border-color: #f59e0b;
      box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
      background: linear-gradient(135deg, #fbbf24 0%, #fde047 100%);
      color: #451a03;
    }

    .btn-dark {
      background-color: var(--dark);
      color: #ffffff;
    }

    .btn-dark:hover {
      background-color: #1e293b;
      transform: translateY(-2px);
    }

    .btn-outline {
      border: 2px solid var(--primary);
      color: #92400e;
      background: transparent;
    }

    .btn-outline:hover {
      background-color: #fef08a;
      border-color: var(--primary-dark);
    }

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

    .nav-toggle svg {
      width: 28px;
      height: 28px;
      fill: var(--dark);
    }

    /* 视觉首屏 (Hero - 遵守纯代码构筑无图片规范) */
    .hero-section {
      position: relative;
      background: radial-gradient(circle at 80% 20%, #fef9c3 0%, #fffdf5 70%);
      padding: 72px 0 64px 0;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #fef08a;
      border: 1px solid #fde047;
      color: #854d0e;
      font-size: 0.85rem;
      font-weight: 700;
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 20px;
      box-shadow: var(--shadow-sm);
    }

    .hero-badge .pulse-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #ca8a04;
      display: inline-block;
      animation: pulse 1.8s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.9); opacity: 0.8; }
      50% { transform: scale(1.3); opacity: 1; }
      100% { transform: scale(0.9); opacity: 0.8; }
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--dark);
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }

    .hero-title .highlight {
      color: #b45309;
      background: linear-gradient(120deg, #fef08a 0%, #fde047 100%);
      padding: 0 6px;
      border-radius: 4px;
      display: inline-block;
    }

    .hero-subtitle {
      font-size: 1.1rem;
      color: #475569;
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 580px;
    }

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

    .hero-metrics {
      display: flex;
      gap: 32px;
      padding-top: 24px;
      border-top: 1px dashed #fde047;
    }

    .metric-item h4 {
      font-size: 1.6rem;
      font-weight: 800;
      color: #92400e;
      margin-bottom: 2px;
    }

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

    /* 首屏纯CSS代码虚拟算力仪表舱 */
    .hero-visual-card {
      background: #ffffff;
      border: 2px solid #fde047;
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 0 20px 40px rgba(245, 158, 11, 0.15);
      position: relative;
    }

    .visual-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 14px;
      border-bottom: 1px solid #fef08a;
    }

    .terminal-dots {
      display: flex;
      gap: 6px;
    }

    .terminal-dots span {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: #fde047;
      display: block;
    }

    .terminal-dots span:nth-child(2) { background: #facc15; }
    .terminal-dots span:nth-child(3) { background: #eab308; }

    .engine-status {
      font-size: 0.8rem;
      font-weight: 700;
      color: #047857;
      background: #ecfdf5;
      padding: 4px 10px;
      border-radius: 6px;
    }

    .model-pipeline-stack {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .pipeline-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 14px;
      background: #fefce8;
      border-radius: var(--radius-sm);
      border: 1px solid #fef08a;
    }

    .pipeline-name {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 0.9rem;
      color: var(--dark);
    }

    .pipeline-icon {
      width: 28px;
      height: 28px;
      background: #fde047;
      color: #78350f;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: 900;
    }

    .pipeline-badge {
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      background: #ffffff;
      color: #854d0e;
      font-weight: 600;
      border: 1px solid #fde047;
    }

    .visual-footer-pill {
      margin-top: 18px;
      background: #fffbeb;
      padding: 10px 14px;
      border-radius: 8px;
      font-size: 0.82rem;
      color: #92400e;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 全局板块框架 */
    .section-block {
      padding: 80px 0;
      position: relative;
    }

    .bg-gradient-alt {
      background: linear-gradient(180deg, #fffdf5 0%, #fefce8 50%, #fffdf5 100%);
    }

    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 52px auto;
    }

    .section-tag {
      font-size: 0.82rem;
      font-weight: 800;
      letter-spacing: 1.5px;
      color: #b45309;
      text-transform: uppercase;
      background: #fef08a;
      padding: 4px 12px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
    }

    .section-head h2 {
      font-size: 2.15rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-head p {
      font-size: 1rem;
      color: var(--text-muted);
    }

    /* 栅格通用卡片 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

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

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }

    .base-card {
      background: var(--bg-card);
      border: 1px solid #fef08a;
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .base-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #fde047;
    }

    .card-icon {
      width: 48px;
      height: 48px;
      background: #fef08a;
      color: #92400e;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.25rem;
      margin-bottom: 18px;
    }

    .base-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }

    .base-card p {
      font-size: 0.92rem;
      color: #475569;
      line-height: 1.6;
    }

    /* 平台矩阵芯片 */
    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 36px;
    }

    .model-chip {
      background: #ffffff;
      border: 1px solid #fde047;
      padding: 7px 16px;
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 700;
      color: #78350f;
      box-shadow: 0 2px 6px rgba(245, 158, 11, 0.08);
      transition: all 0.2s;
    }

    .model-chip:hover {
      background: #fef08a;
      transform: scale(1.05);
    }

    /* 场景专栏丰富展示 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scenario-item {
      background: #ffffff;
      border: 1px solid #fef08a;
      border-radius: var(--radius-md);
      padding: 22px;
      transition: all 0.25s;
    }

    .scenario-item:hover {
      border-color: #ca8a04;
      box-shadow: var(--shadow-md);
      background: #fffdf5;
    }

    .scenario-item h4 {
      font-size: 1.08rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .scenario-item h4::before {
      content: "";
      width: 6px;
      height: 16px;
      background: var(--primary);
      border-radius: 3px;
      display: inline-block;
    }

    .scenario-item p {
      font-size: 0.875rem;
      color: #475569;
      line-height: 1.6;
    }

    /* 对比评测高光板块 */
    .review-banner {
      background: linear-gradient(135deg, #fffbeb 0%, #fef08a 100%);
      border: 2px solid #facc15;
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: var(--shadow-md);
    }

    .review-badge-score {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .score-number {
      font-size: 3.5rem;
      font-weight: 900;
      color: #78350f;
      line-height: 1;
    }

    .score-detail h4 {
      font-size: 1.4rem;
      font-weight: 800;
      color: #92400e;
      margin-bottom: 4px;
    }

    .stars-rated {
      color: #eab308;
      font-size: 1.3rem;
      letter-spacing: 2px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid #fef08a;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }

    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #fefce8;
    }

    .compare-table th {
      background: #fefce8;
      color: #78350f;
      font-weight: 800;
    }

    .compare-table tr:hover td {
      background: #fffdf5;
    }

    .highlight-cell {
      background: #fffbeb;
      font-weight: 700;
      color: #92400e;
    }

    /* 真实素材图画廊 */
    .media-gallery {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-bottom: 32px;
    }

    .media-card {
      background: #ffffff;
      border: 1px solid #fef08a;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .media-card .img-box {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #fefce8;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .media-card .img-box.square-box {
      aspect-ratio: 1 / 1;
      max-height: 280px;
    }

    .media-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
      display: block;
    }

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

    .media-info {
      padding: 18px 20px;
    }

    .media-info h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 6px;
    }

    .media-info p {
      font-size: 0.875rem;
      color: var(--text-muted);
    }

    /* 流程步骤 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .flow-card {
      background: #ffffff;
      border: 1px solid #fef08a;
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }

    .step-number {
      font-size: 2rem;
      font-weight: 900;
      color: #fde047;
      line-height: 1;
      margin-bottom: 12px;
    }

    /* FAQ 手风琴折叠面板 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      border: 1px solid #fef08a;
      border-radius: var(--radius-sm);
      background: #ffffff;
      overflow: hidden;
      transition: all 0.2s;
    }

    .faq-item.active {
      border-color: #f59e0b;
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 22px;
      background: none;
      border: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--dark);
    }

    .faq-question svg {
      width: 20px;
      height: 20px;
      fill: #ca8a04;
      transition: transform 0.25s ease;
      flex-shrink: 0;
    }

    .faq-item.active .faq-question svg {
      transform: rotate(180deg);
    }

    .faq-answer {
      display: none;
      padding: 0 22px 18px 22px;
      font-size: 0.92rem;
      color: #475569;
      line-height: 1.7;
      border-top: 1px dashed #fefce8;
    }

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

    /* 用户评论 */
    .comment-card {
      background: #ffffff;
      border: 1px solid #fef08a;
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .comment-body {
      font-size: 0.92rem;
      color: #334155;
      font-style: italic;
      line-height: 1.7;
      margin-bottom: 20px;
      position: relative;
    }

    .comment-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #fefce8;
      padding-top: 14px;
    }

    .user-avatar-tag {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #fde047;
      color: #78350f;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.9rem;
    }

    .user-info h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--dark);
    }

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

    /* 需求匹配与联系我们表单 */
    .contact-container {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: #ffffff;
      border: 2px solid #fef08a;
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-md);
    }

    .contact-info-panel h3 {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 12px;
    }

    .contact-info-panel p {
      color: #475569;
      font-size: 0.95rem;
      margin-bottom: 28px;
    }

    .qr-showcase {
      display: flex;
      align-items: center;
      gap: 18px;
      background: #fffbeb;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid #fde047;
      margin-bottom: 24px;
    }

    .qr-showcase img {
      width: 100px;
      height: 100px;
      object-fit: cover;
      border-radius: 6px;
      border: 1px solid #fde047;
    }

    .qr-text h5 {
      font-size: 1rem;
      font-weight: 700;
      color: #78350f;
      margin-bottom: 4px;
    }

    .qr-text p {
      font-size: 0.82rem;
      color: #92400e;
      margin-bottom: 0;
    }

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

    .meta-contact-list li {
      font-size: 0.9rem;
      color: #334155;
      display: flex;
      gap: 10px;
    }

    .form-wrapper form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

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

    .form-group label {
      font-size: 0.875rem;
      font-weight: 700;
      color: #334155;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      font-family: inherit;
      outline: none;
      transition: all 0.2s;
    }

    .form-control:focus {
      border-color: #f59e0b;
      box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
    }

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

    /* 最新文章网格 */
    .article-card-box {
      background: #ffffff;
      border: 1px solid #fef08a;
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }

    .article-card-box h4 a {
      color: var(--dark);
      text-decoration: none;
      font-size: 1.1rem;
      font-weight: 700;
      line-height: 1.4;
      transition: color 0.2s;
    }

    .article-card-box h4 a:hover {
      color: #b45309;
    }

    .article-date {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-top: 14px;
    }

    /* 友情链接与规范页脚 */
    .site-footer {
      background: #fefce8;
      border-top: 2px solid #fef08a;
      padding: 60px 0 24px 0;
      margin-top: auto;
    }

    .footer-content {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-desc {
      font-size: 0.9rem;
      color: #475569;
      line-height: 1.7;
      margin-top: 14px;
    }

    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 16px;
      border-left: 3px solid #f59e0b;
      padding-left: 8px;
    }

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

    .footer-links li a {
      color: #475569;
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.2s;
    }

    .footer-links li a:hover {
      color: #b45309;
      text-decoration: underline;
    }

    .friendly-links-section {
      border-top: 1px dashed #fde047;
      padding-top: 20px;
      margin-bottom: 24px;
    }

    .friendly-links-section h5 {
      font-size: 0.9rem;
      font-weight: 800;
      color: #78350f;
      margin-bottom: 10px;
    }

    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friend-links-box a {
      color: #64748b;
      text-decoration: none;
      font-size: 0.85rem;
      transition: color 0.2s;
    }

    .friend-links-box a:hover {
      color: #b45309;
    }

    .footer-bottom-bar {
      border-top: 1px solid #fef08a;
      padding-top: 20px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 悬浮交互挂件 */
    .float-dock {
      position: fixed;
      right: 20px;
      bottom: 40px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 998;
    }

    .dock-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 2px solid #fde047;
      border-radius: 50%;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.2s;
      position: relative;
    }

    .dock-btn:hover {
      transform: scale(1.1);
      background: #fef08a;
    }

    .dock-btn svg {
      width: 24px;
      height: 24px;
      fill: #78350f;
    }

    .dock-qr-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      border: 2px solid #fde047;
      border-radius: var(--radius-md);
      padding: 12px;
      box-shadow: var(--shadow-lg);
      display: none;
      width: 160px;
      text-align: center;
    }

    .dock-btn:hover .dock-qr-popup {
      display: block;
    }

    .dock-qr-popup img {
      width: 100%;
      height: auto;
      border-radius: 4px;
    }

    .dock-qr-popup span {
      font-size: 0.75rem;
      color: #78350f;
      display: block;
      margin-top: 4px;
      font-weight: 700;
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-wrapper {
        grid-template-columns: 1fr;
      }
      .grid-4, .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-container {
        grid-template-columns: 1fr;
      }
      .footer-content {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 2px solid #fde047;
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-toggle {
        display: block;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .grid-4, .grid-3, .grid-2, .scenario-grid, .media-gallery, .flow-steps {
        grid-template-columns: 1fr;
      }
      .review-banner {
        flex-direction: column;
        gap: 20px;
        text-align: center;
      }
      .review-badge-score {
        flex-direction: column;
        gap: 8px;
      }
      .footer-content {
        grid-template-columns: 1fr;
      }
    }