/* 全局变量与重置 - 活力亮彩渐变风 (浅色基底 + 高亮渐变点缀) */
    :root {
      --primary: #4f46e5;
      --primary-light: #6366f1;
      --secondary: #06b6d4;
      --accent: #f43f5e;
      --accent-warm: #f97316;
      --bg-base: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --gradient-brand: linear-gradient(135deg, #4f46e5 0%, #06b6d4 50%, #f43f5e 100%);
      --gradient-soft: linear-gradient(180deg, #f0fdfa 0%, #f8fafc 100%);
      --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
      --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 16px 36px rgba(79, 70, 229, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }

    /* 统一居中容器 */
    .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, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }

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

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

    .brand-wrap .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }

    .brand-text {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    .brand-badge {
      display: inline-block;
      font-size: 11px;
      font-weight: 600;
      padding: 2px 8px;
      border-radius: 99px;
      background: rgba(79, 70, 229, 0.1);
      color: var(--primary);
    }

    .nav-container {
      display: flex;
      align-items: center;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0; /* 严格满足需求：页面CSS .nav-links的gap属性设置为0 */
    }

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

    .nav-links li a:hover {
      color: var(--primary);
      background: rgba(79, 70, 229, 0.05);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: 16px;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 700;
      color: #ffffff;
      background: var(--gradient-brand);
      border: none;
      border-radius: 99px;
      text-decoration: none;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
      transition: var(--transition);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 99px;
      text-decoration: none;
      cursor: pointer;
      transition: var(--transition);
    }

    .btn-secondary:hover {
      border-color: var(--primary-light);
      background: rgba(79, 70, 229, 0.04);
      transform: translateY(-2px);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-main);
      padding: 8px;
    }

    /* 首屏 Hero 区域 (严格规定：首屏绝不出现任何图片) */
    .hero-section {
      padding: 70px 0 60px;
      background: radial-gradient(circle at 50% 10%, rgba(99, 102, 241, 0.12) 0%, rgba(6, 182, 212, 0.06) 45%, rgba(248, 250, 252, 0) 70%);
      position: relative;
      overflow: hidden;
      text-align: center;
    }

    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid rgba(79, 70, 229, 0.2);
      border-radius: 99px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
      animation: floatBadge 3s ease-in-out infinite;
    }

    @keyframes floatBadge {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-4px); }
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: -1px;
      color: var(--text-main);
      max-width: 860px;
      margin: 0 auto 20px;
    }

    .hero-highlight {
      background: linear-gradient(120deg, #4f46e5, #06b6d4, #f43f5e);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline;
    }

    .hero-subtitle {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto 32px;
      line-height: 1.6;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .hero-btn-major {
      padding: 14px 36px;
      font-size: 16px;
      font-weight: 700;
      background: linear-gradient(135deg, #4f46e5 0%, #ec4899 100%);
      color: #ffffff;
      border-radius: 99px;
      text-decoration: none;
      box-shadow: 0 8px 24px rgba(236, 72, 153, 0.35);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .hero-btn-major:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 12px 28px rgba(236, 72, 153, 0.5);
    }

    /* 纯代码构建的科技看板 (首屏替代图) */
    .hero-dashboard {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-lg);
      max-width: 1040px;
      margin: 0 auto;
      position: relative;
    }

    .hero-stat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .hero-stat-item {
      padding: 16px;
      background: var(--bg-base);
      border-radius: var(--radius-md);
      border-left: 4px solid var(--primary);
      text-align: left;
    }

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

    .stat-num {
      font-size: 26px;
      font-weight: 800;
      color: var(--text-main);
      display: block;
      margin-bottom: 4px;
    }

    .stat-desc {
      font-size: 13px;
      color: var(--text-light);
      font-weight: 500;
    }

    /* 聚合模型滚屏标签云 */
    .model-pill-track {
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px dashed var(--border-color);
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
    }

    .model-chip {
      font-size: 12px;
      font-weight: 600;
      padding: 5px 12px;
      background: rgba(79, 70, 229, 0.06);
      color: var(--primary);
      border-radius: 99px;
      border: 1px solid rgba(79, 70, 229, 0.12);
      transition: var(--transition);
    }

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

    /* 通用区块排版 */
    .section-block {
      padding: 80px 0;
      position: relative;
    }

    .section-alt {
      background: #f1f5f9;
    }

    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }

    .section-subtag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
      padding: 4px 12px;
      border-radius: 99px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.35;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 卡片网格 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    /* 服务能力卡片 */
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
      box-shadow: var(--shadow-sm);
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(79, 70, 229, 0.3);
    }

    .feature-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(6, 182, 212, 0.15));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 18px;
    }

    .feature-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .feature-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      flex-grow: 1;
    }

    /* 场景分类标签 */
    .scenario-badge {
      display: inline-block;
      font-size: 11px;
      font-weight: 600;
      background: #f8fafc;
      border: 1px solid var(--border-color);
      color: var(--text-light);
      padding: 2px 8px;
      border-radius: 6px;
      margin-top: 14px;
    }

    /* 关于我们与平台介绍图文结构 */
    .about-split {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .about-content h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .about-text {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.75;
    }

    .media-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 12px;
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .media-card img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-md);
      display: block;
      object-fit: cover;
    }

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

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

    .step-item:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
    }

    .step-number {
      width: 40px;
      height: 40px;
      line-height: 40px;
      border-radius: 50%;
      background: var(--gradient-brand);
      color: #ffffff;
      font-weight: 800;
      margin: 0 auto 16px;
      font-size: 16px;
    }

    .step-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 对比评测卡片与表格 */
    .rating-banner {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px;
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      box-shadow: var(--shadow-lg);
    }

    .rating-score-box {
      display: flex;
      align-items: baseline;
      gap: 12px;
    }

    .rating-large {
      font-size: 52px;
      font-weight: 900;
      color: #38bdf8;
      line-height: 1;
    }

    .rating-max {
      font-size: 18px;
      color: #94a3b8;
    }

    .rating-stars {
      color: #facc15;
      font-size: 20px;
      letter-spacing: 4px;
      margin-top: 4px;
    }

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

    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

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

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

    .comp-table tr:hover td {
      background: rgba(248, 250, 252, 0.7);
    }

    .highlight-col {
      background: rgba(79, 70, 229, 0.03);
      font-weight: 700;
      color: var(--primary);
    }

    .check-yes {
      color: #10b981;
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .check-no {
      color: #94a3b8;
    }

    /* 客户评价板块 */
    .testimonial-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;
      transition: var(--transition);
    }

    .testimonial-card:hover {
      box-shadow: var(--shadow-md);
      border-color: rgba(79, 70, 229, 0.3);
      transform: translateY(-4px);
    }

    .test-quote {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
      font-style: italic;
    }

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

    .user-avatar-circle {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #4f46e5, #06b6d4);
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
    }

    .user-info h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-info p {
      font-size: 12px;
      color: var(--text-light);
    }

    /* FAQ 手风琴样式 */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-accordion-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-accordion-item:hover {
      border-color: rgba(79, 70, 229, 0.3);
    }

    .faq-question-btn {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: none;
      border: none;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-icon-arrow {
      font-size: 18px;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

    .faq-answer-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .faq-accordion-item.active .faq-answer-content {
      max-height: 240px;
      padding-bottom: 18px;
    }

    .faq-accordion-item.active .faq-icon-arrow {
      transform: rotate(180deg);
    }

    /* 需求表单模块 */
    .form-container-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-lg);
      max-width: 820px;
      margin: 0 auto;
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .form-full {
      grid-column: span 2;
    }

    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background: var(--bg-base);
      transition: var(--transition);
      outline: none;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

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

    .form-submit-btn {
      width: 100%;
      padding: 14px;
      font-size: 16px;
      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, 0.35);
      transition: var(--transition);
    }

    .form-submit-btn:hover {
      opacity: 0.95;
      transform: translateY(-2px);
    }

    /* 行业资讯 & 最新文章 */
    .article-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 20px;
    }

    .article-pill-link {
      padding: 10px 18px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 99px;
      color: var(--text-main);
      font-size: 13px;
      font-weight: 600;
      text-decoration: none;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .article-pill-link:hover {
      color: var(--primary);
      border-color: var(--primary);
      background: rgba(79, 70, 229, 0.04);
    }

    /* 联系我们信息面板与二维码 */
    .contact-card-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      align-items: center;
    }

    .contact-info-list {
      list-style: none;
    }

    .contact-info-list li {
      padding: 12px 0;
      border-bottom: 1px dashed var(--border-color);
      font-size: 15px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .contact-info-list strong {
      color: var(--text-main);
      min-width: 90px;
    }

    .qr-box-wrap {
      text-align: center;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      max-width: 260px;
      margin: 0 auto;
    }

    .qr-box-wrap img {
      width: 170px;
      height: 170px;
      object-fit: contain;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      border: 1px solid var(--border-color);
    }

    .qr-label {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
    }

    /* 友情链接专区 */
    .friendly-links-section {
      padding: 24px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      background: #ffffff;
    }

    .friendly-links-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 12px;
      text-transform: uppercase;
    }

    .friendly-links-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friendly-links-group a {
      font-size: 13px;
      color: var(--text-muted);
      text-decoration: none;
      transition: var(--transition);
    }

    .friendly-links-group a:hover {
      color: var(--primary);
    }

    /* 页脚 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 50px 0 30px;
      font-size: 14px;
    }

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

    .footer-brand h4 {
      color: #ffffff;
      font-size: 20px;
      margin-bottom: 12px;
    }

    .footer-brand p {
      line-height: 1.7;
      max-width: 440px;
    }

    .footer-col h5 {
      color: #ffffff;
      font-size: 15px;
      margin-bottom: 16px;
    }

    .footer-col ul {
      list-style: none;
    }

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

    .footer-col ul li a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-col ul li a:hover {
      color: #ffffff;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    .ai-page-home-link {
      color: #38bdf8;
      text-decoration: none;
      font-weight: 600;
    }

    /* 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);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      cursor: pointer;
      text-decoration: none;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.1);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-stat-grid { grid-template-columns: repeat(2, 1fr); }
      .grid-3, .workflow-steps { grid-template-columns: repeat(2, 1fr); }
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .about-split { grid-template-columns: 1fr; }
      .footer-inner-grid { grid-template-columns: 1fr; }
    }

    @media (max-width: 768px) {
      .menu-toggle { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: stretch;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        padding: 12px 20px;
        gap: 0;
      }
      .nav-links.active { display: flex; }
      .nav-links li a { padding: 12px 14px; width: 100%; }
      .nav-actions { display: none; }
      .hero-title { font-size: 30px; }
      .hero-subtitle { font-size: 15px; }
      .grid-3, .grid-4, .grid-2, .workflow-steps { grid-template-columns: 1fr; }
      .contact-card-grid { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .form-full { grid-column: span 1; }
      .form-container-box { padding: 24px; }
      .rating-banner { flex-direction: column; align-items: flex-start; }
    }