:root {
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-sub: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --primary: #0284c7;
      --neon-cyan: #06b6d4;
      --neon-lime: #10b981;
      --neon-violet: #8b5cf6;
      --neon-glow: 0 0 20px rgba(6, 182, 212, 0.25);
      --card-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.03);
      --container-w: 1200px;
    }

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

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

    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.05) 0%, transparent 60%);
      background-attachment: fixed;
    }

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

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: var(--container-w);
      margin: 0 auto;
      padding: 0 24px;
    }

    .section {
      padding: 80px 0;
      position: relative;
    }

    .section-head {
      text-align: center;
      margin-bottom: 50px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.875rem;
      font-weight: 700;
      padding: 6px 16px;
      border-radius: 9999px;
      background: linear-gradient(90deg, rgba(6, 182, 212, 0.1), rgba(16, 185, 129, 0.1));
      color: #0891b2;
      border: 1px solid rgba(6, 182, 212, 0.3);
      margin-bottom: 12px;
      box-shadow: var(--neon-glow);
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
    }

    .section-desc {
      font-size: 1.1rem;
      color: var(--text-sub);
      max-width: 680px;
      margin: 12px auto 0;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(6, 182, 212, 0.2);
    }

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

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

    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
      display: block;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links a {
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-sub);
      border-radius: 6px;
    }

    .nav-links a:hover {
      color: var(--neon-cyan);
      background: rgba(6, 182, 212, 0.05);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 0.95rem;
      padding: 10px 22px;
      border-radius: 8px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
    }

    .btn-neon {
      background: linear-gradient(135deg, #06b6d4, #10b981);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(6, 182, 212, 0.35);
    }

    .btn-neon:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(6, 182, 212, 0.5);
      color: #ffffff;
    }

    .btn-outline {
      background: #ffffff;
      color: var(--text-main);
      border-color: rgba(6, 182, 212, 0.4);
    }

    .btn-outline:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
      background: rgba(6, 182, 212, 0.05);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    /* Hero 首屏 (无图片) */
    .hero-section {
      padding: 100px 0 80px;
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 20px;
      border-radius: 9999px;
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid rgba(6, 182, 212, 0.3);
      box-shadow: 0 4px 15px rgba(6, 182, 212, 0.15);
      margin-bottom: 24px;
      font-size: 0.95rem;
      font-weight: 600;
      color: #0e7490;
    }

    .hero-badge span {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10b981;
      box-shadow: 0 0 8px #10b981;
    }

    .hero-title {
      font-size: 3.2rem;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: #0f172a;
      line-height: 1.25;
      margin-bottom: 24px;
    }

    .hero-title .text-gradient {
      background: linear-gradient(135deg, #0891b2 0%, #10b981 50%, #8b5cf6 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.25rem;
      color: var(--text-sub);
      max-width: 780px;
      margin: 0 auto 36px;
      line-height: 1.6;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 60px;
    }

    .btn-hero-main {
      padding: 14px 36px;
      font-size: 1.1rem;
    }

    /* 纯CSS首屏科技感数据面板 */
    .hero-stats-panel {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: rgba(255, 255, 255, 0.8);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(6, 182, 212, 0.25);
      border-radius: 16px;
      padding: 30px;
      box-shadow: var(--card-shadow), var(--neon-glow);
    }

    .stat-item {
      text-align: center;
      border-right: 1px solid rgba(226, 232, 240, 0.8);
    }

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

    .stat-num {
      font-size: 2.25rem;
      font-weight: 800;
      color: #0e7490;
      line-height: 1;
      margin-bottom: 6px;
    }

    .stat-label {
      font-size: 0.95rem;
      color: var(--text-sub);
      font-weight: 500;
    }

    /* 平台支持的大模型矩阵标签云 */
    .model-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-pill {
      background: #ffffff;
      padding: 6px 14px;
      border-radius: 6px;
      border: 1px solid var(--border-color);
      font-size: 0.85rem;
      font-weight: 600;
      color: #334155;
      box-shadow: 0 2px 4px rgba(0,0,0,0.02);
      transition: all 0.2s ease;
    }

    .model-pill:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
      transform: translateY(-2px);
    }

    /* 关于与平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-card {
      background: var(--bg-card);
      border-radius: 16px;
      padding: 36px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      position: relative;
    }

    .about-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: linear-gradient(to bottom, #06b6d4, #10b981);
      border-radius: 16px 0 0 16px;
    }

    .about-points {
      margin-top: 24px;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .about-point-box {
      background: #f1f5f9;
      padding: 16px;
      border-radius: 10px;
      border-left: 3px solid var(--neon-cyan);
    }

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

    .about-point-box p {
      font-size: 0.875rem;
      color: var(--text-sub);
    }

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

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 28px;
      box-shadow: var(--card-shadow);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      transform: translateY(-4px);
      border-color: rgba(6, 182, 212, 0.6);
      box-shadow: 0 15px 30px rgba(6, 182, 212, 0.12);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(16, 185, 129, 0.15));
      color: #0891b2;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      border: 1px solid rgba(6, 182, 212, 0.2);
    }

    .service-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .service-desc {
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.6;
      flex-grow: 1;
    }

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

    .scenario-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 22px;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }

    .scenario-item:hover {
      border-color: var(--neon-lime);
      box-shadow: 0 8px 20px rgba(16, 185, 129, 0.1);
      transform: translateY(-2px);
    }

    .scenario-badge {
      font-size: 0.75rem;
      font-weight: 700;
      color: #059669;
      background: #ecfdf5;
      padding: 3px 8px;
      border-radius: 4px;
      align-self: flex-start;
      margin-bottom: 10px;
    }

    .scenario-name {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .scenario-detail {
      font-size: 0.875rem;
      color: var(--text-sub);
      line-height: 1.5;
    }

    /* 对比评测模块 */
    .eval-box {
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid rgba(6, 182, 212, 0.3);
      padding: 40px;
      box-shadow: var(--card-shadow), var(--neon-glow);
    }

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

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

    .eval-score-circle {
      width: 76px;
      height: 76px;
      border-radius: 50%;
      background: linear-gradient(135deg, #06b6d4, #10b981);
      color: #ffffff;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      line-height: 1;
      box-shadow: 0 4px 15px rgba(6, 182, 212, 0.4);
    }

    .eval-score-circle .big-num {
      font-size: 1.65rem;
    }

    .eval-score-circle .sub-text {
      font-size: 0.65rem;
      opacity: 0.9;
    }

    .eval-summary h3 {
      font-size: 1.4rem;
      margin-bottom: 4px;
      color: var(--text-main);
    }

    .eval-stars {
      color: #f59e0b;
      font-size: 1.25rem;
      letter-spacing: 2px;
    }

    .eval-table-container {
      overflow-x: auto;
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }

    .eval-table th, .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

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

    .eval-table tr:hover td {
      background: #f1f5f9;
    }

    .eval-highlight {
      color: #0891b2;
      font-weight: 700;
    }

    /* 标准制作流程 */
    .timeline-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .timeline-step {
      background: #ffffff;
      padding: 30px 24px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      position: relative;
      text-align: center;
    }

    .step-badge {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #06b6d4, #10b981);
      color: #ffffff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      box-shadow: 0 4px 10px rgba(6, 182, 212, 0.3);
    }

    .timeline-step h4 {
      font-size: 1.15rem;
      margin-bottom: 8px;
    }

    .timeline-step p {
      font-size: 0.9rem;
      color: var(--text-sub);
    }

    /* 素材案例展示 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border-radius: 14px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      transition: all 0.3s ease;
    }

    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 28px rgba(0,0,0,0.08);
    }

    .case-img-box {
      width: 100%;
      height: 220px;
      overflow: hidden;
      background: #f1f5f9;
      position: relative;
    }

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

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

    .case-info {
      padding: 20px;
    }

    .case-info h4 {
      font-size: 1.15rem;
      margin-bottom: 8px;
    }

    .case-info p {
      font-size: 0.9rem;
      color: var(--text-sub);
    }

    /* 用户评论卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border-radius: 14px;
      padding: 26px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-quote {
      font-size: 0.95rem;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 20px;
      position: relative;
      font-style: italic;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #06b6d4, #8b5cf6);
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }

    .reviewer-info h5 {
      font-size: 0.95rem;
      color: var(--text-main);
    }

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

    /* FAQ 手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #ffffff;
      border-radius: 10px;
      border: 1px solid var(--border-color);
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-question {
      padding: 20px 24px;
      font-weight: 700;
      font-size: 1.05rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }

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

    .faq-icon {
      font-size: 1.25rem;
      font-weight: 400;
      transition: transform 0.3s ease;
      color: var(--text-light);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #f8fafc;
      color: var(--text-sub);
      padding: 0 24px;
      font-size: 0.95rem;
      line-height: 1.6;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 16px 24px 20px;
      border-top: 1px solid var(--border-color);
    }

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

    /* 需求匹配与表单区 */
    .form-section-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: start;
    }

    .form-intro-card {
      background: linear-gradient(145deg, #ffffff, #f0fdfa);
      border: 1px solid rgba(6, 182, 212, 0.3);
      border-radius: 16px;
      padding: 36px;
      box-shadow: var(--card-shadow);
    }

    .qr-contact-box {
      margin-top: 30px;
      display: flex;
      align-items: center;
      gap: 20px;
      background: #ffffff;
      padding: 16px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
    }

    .qr-img {
      width: 100px;
      height: 100px;
      border-radius: 8px;
      display: block;
      object-fit: contain;
    }

    .booking-form {
      background: #ffffff;
      padding: 36px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-weight: 600;
      font-size: 0.95rem;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      background: #f8fafc;
      color: var(--text-main);
      transition: border-color 0.2s ease;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--neon-cyan);
      background: #ffffff;
    }

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

    /* 最新文章与资讯 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

    .article-item {
      background: #ffffff;
      padding: 18px;
      border-radius: 10px;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 10px rgba(0,0,0,0.02);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-item:hover {
      border-color: var(--neon-cyan);
      transform: translateY(-3px);
    }

    .article-item h5 {
      font-size: 0.95rem;
      color: var(--text-main);
      line-height: 1.4;
      margin-bottom: 10px;
    }

    .article-link {
      font-size: 0.85rem;
      color: #0891b2;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 友情链接与生态 */
    .friend-links-box {
      background: #ffffff;
      border-radius: 12px;
      padding: 24px;
      border: 1px solid var(--border-color);
      margin-bottom: 40px;
    }

    .friend-links-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 14px;
      color: var(--text-main);
    }

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

    .friend-links-list a {
      font-size: 0.9rem;
      color: var(--text-sub);
      background: #f1f5f9;
      padding: 6px 14px;
      border-radius: 6px;
      transition: all 0.2s ease;
    }

    .friend-links-list a:hover {
      background: rgba(6, 182, 212, 0.1);
      color: var(--neon-cyan);
    }

    /* 底部通用区域 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid rgba(6, 182, 212, 0.2);
      padding: 60px 0 30px;
      color: var(--text-sub);
    }

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

    .footer-brand p {
      font-size: 0.95rem;
      margin-top: 12px;
      line-height: 1.6;
      color: var(--text-sub);
      max-width: 320px;
    }

    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      font-size: 0.9rem;
      color: var(--text-sub);
    }

    .footer-links a:hover {
      color: var(--neon-cyan);
    }

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.875rem;
      color: var(--text-light);
    }

    /* 悬浮客服面板与返回顶部 */
    .float-widget {
      position: fixed;
      right: 24px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 14px rgba(0,0,0,0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: #0891b2;
      font-size: 1.25rem;
      transition: all 0.25s ease;
      position: relative;
    }

    .float-btn:hover {
      background: var(--neon-cyan);
      color: #ffffff;
      box-shadow: var(--neon-glow);
    }

    .float-qr-popover {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: 10px;
      box-shadow: 0 10px 25px rgba(0,0,0,0.15);
      border: 1px solid var(--border-color);
      display: none;
      width: 140px;
      text-align: center;
    }

    .float-qr-popover img {
      width: 100%;
      height: auto;
      border-radius: 6px;
      display: block;
    }

    .float-qr-popover p {
      font-size: 0.75rem;
      margin-top: 6px;
      color: var(--text-main);
      font-weight: 600;
    }

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

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.6rem;
      }
      .service-grid, .scenario-grid, .case-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .articles-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links, .nav-btn-group {
        display: none;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
      }
      .menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 2rem;
      }
      .hero-stats-panel {
        grid-template-columns: repeat(2, 1fr);
      }
      .stat-item {
        border-right: none;
        padding: 10px 0;
      }
      .about-grid, .form-section-wrap {
        grid-template-columns: 1fr;
      }
      .service-grid, .scenario-grid, .case-grid, .reviews-grid, .timeline-steps {
        grid-template-columns: 1fr;
      }
      .articles-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .eval-banner {
        flex-direction: column;
        align-items: flex-start;
      }
    }