/* 全局变量与潮流艳色风设计体系 */
    :root {
      --primary-color: #ff2a5f;
      --secondary-color: #6333ff;
      --accent-color: #00d2ff;
      --accent-yellow: #ffb800;
      --gradient-hot: linear-gradient(135deg, #ff2a5f 0%, #ff6e40 50%, #ffbe00 100%);
      --gradient-neon: linear-gradient(135deg, #6333ff 0%, #a832ff 50%, #ff2a5f 100%);
      --gradient-cool: linear-gradient(135deg, #00d2ff 0%, #0051ff 100%);
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f1f5f9;
      --text-dark: #0f172a;
      --text-body: #334155;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
      --border-accent: rgba(99, 51, 255, 0.15);
      --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 20px rgba(99, 51, 255, 0.08);
      --shadow-lg: 0 16px 36px rgba(255, 42, 95, 0.12);
      --shadow-hover: 0 20px 40px rgba(99, 51, 255, 0.16);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      scroll-behavior: smooth;
      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-body);
      line-height: 1.6;
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-body);
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    /* 容器规范 */
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 导航栏 */
    .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 2px 10px rgba(0, 0, 0, 0.03);
    }

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

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

    .brand-logo-wrap .ai-page-logo {
      height: 44px;
      width: auto;
      object-fit: contain;
      display: block;
    }

    .brand-name-text {
      font-size: 22px;
      font-weight: 800;
      background: var(--gradient-hot);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

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

    .nav-item a,
    .nav-item .ai-page-home-link {
      display: inline-block;
      padding: 8px 14px;
      color: var(--text-dark);
      font-weight: 600;
      font-size: 15px;
      text-decoration: none;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      position: relative;
    }

    .nav-item a:hover,
    .nav-item .ai-page-home-link:hover {
      color: var(--primary-color);
      background: rgba(255, 42, 95, 0.06);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 700;
      border-radius: var(--radius-full);
      text-decoration: none;
      cursor: pointer;
      transition: var(--transition);
      border: 2px solid transparent;
      white-space: nowrap;
    }

    .btn-gradient {
      background: var(--gradient-hot);
      color: #ffffff !important;
      box-shadow: 0 4px 15px rgba(255, 42, 95, 0.35);
    }

    .btn-gradient:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(255, 42, 95, 0.45);
    }

    .btn-outline {
      border-color: var(--secondary-color);
      color: var(--secondary-color);
      background: #ffffff;
    }

    .btn-outline:hover {
      background: var(--secondary-color);
      color: #ffffff !important;
      transform: translateY(-2px);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-dark);
      cursor: pointer;
      padding: 6px;
    }

    /* 艳色潮流 Hero 首屏（无图片，纯CSS与动态卡片构成） */
    .hero-section {
      position: relative;
      padding: 80px 0 90px;
      background: radial-gradient(circle at 80% 20%, rgba(255, 42, 95, 0.08) 0%, transparent 50%),
                  radial-gradient(circle at 20% 80%, rgba(99, 51, 255, 0.08) 0%, transparent 50%),
                  #ffffff;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .hero-badge-wrap {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: linear-gradient(90deg, rgba(255, 42, 95, 0.1), rgba(99, 51, 255, 0.1));
      padding: 6px 16px;
      border-radius: var(--radius-full);
      border: 1px solid rgba(255, 42, 95, 0.2);
      margin-bottom: 24px;
    }

    .badge-dot {
      width: 8px;
      height: 8px;
      background: var(--primary-color);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--primary-color);
    }

    .badge-text {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary-color);
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-dark);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

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

    .hero-desc {
      font-size: 18px;
      color: var(--text-body);
      max-width: 780px;
      line-height: 1.7;
      margin-bottom: 36px;
    }

    .hero-action-group {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 18px;
      margin-bottom: 48px;
    }

    .btn-hero-official {
      padding: 15px 36px;
      font-size: 18px;
      font-weight: 800;
      background: var(--gradient-hot);
      color: #ffffff !important;
      border-radius: var(--radius-full);
      box-shadow: 0 10px 28px rgba(255, 42, 95, 0.4);
      animation: pulse 2.5s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.03); }
      100% { transform: scale(1); }
    }

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

    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .metric-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--gradient-hot);
      opacity: 0;
      transition: var(--transition);
    }

    .metric-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(255, 42, 95, 0.3);
    }

    .metric-card:hover::before {
      opacity: 1;
    }

    .metric-number {
      font-size: 32px;
      font-weight: 900;
      color: var(--secondary-color);
      margin-bottom: 6px;
      font-family: inherit;
    }

    .metric-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* 模块通用样式 */
    .section {
      padding: 80px 0;
      position: relative;
    }

    .section-alt {
      background: var(--bg-alt);
    }

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

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--secondary-color);
      background: rgba(99, 51, 255, 0.08);
      padding: 5px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 卡片网格系统 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

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

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

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(99, 51, 255, 0.3);
    }

    .card-icon-box {
      width: 54px;
      height: 54px;
      border-radius: 14px;
      background: var(--gradient-neon);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 900;
      margin-bottom: 20px;
    }

    .card-icon-box.hot {
      background: var(--gradient-hot);
    }

    .card-icon-box.cool {
      background: var(--gradient-cool);
    }

    .feature-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 平台支持模型标签流 */
    .models-marquee-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      margin-top: 40px;
    }

    .models-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-dark);
      text-align: center;
      margin-bottom: 20px;
    }

    .model-tags-flow {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }

    .model-pill {
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      padding: 6px 16px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 700;
      color: var(--text-dark);
      transition: var(--transition);
    }

    .model-pill:hover {
      background: var(--primary-color);
      color: #ffffff;
      border-color: var(--primary-color);
      transform: scale(1.05);
    }

    /* 对比评测专属板块 */
    .eval-badge-box {
      background: linear-gradient(135deg, #2a0845, #6441a5);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 30px;
      box-shadow: 0 12px 30px rgba(100, 65, 165, 0.25);
    }

    .eval-stars-wrap {
      font-size: 28px;
      color: var(--accent-yellow);
      letter-spacing: 4px;
      margin-bottom: 8px;
    }

    .eval-score-num {
      font-size: 52px;
      font-weight: 900;
      color: #ffffff;
      line-height: 1;
    }

    .eval-score-max {
      font-size: 20px;
      color: rgba(255, 255, 255, 0.7);
      font-weight: 500;
    }

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

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

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

    .comparison-table th {
      background: var(--bg-alt);
      color: var(--text-dark);
      font-weight: 800;
    }

    .comparison-table tr:last-child td {
      border-bottom: none;
    }

    .comparison-table .highlight-col {
      background: rgba(255, 42, 95, 0.03);
      font-weight: 700;
      color: var(--primary-color);
    }

    /* 媒体与展示图统一容器 */
    .media-card-img-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      background: #ffffff;
      box-shadow: var(--shadow-sm);
    }

    .media-card-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: var(--transition);
    }

    .media-card-img-wrap:hover img {
      transform: scale(1.02);
    }

    /* 步骤流程与时间线 */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

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

    .process-card:hover {
      border-color: var(--primary-color);
      transform: translateY(-4px);
    }

    .step-number {
      font-size: 36px;
      font-weight: 900;
      color: rgba(99, 51, 255, 0.15);
      line-height: 1;
      margin-bottom: 12px;
    }

    .process-card h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 8px;
    }

    .process-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Token 比价卡片 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .price-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px 28px;
      transition: var(--transition);
      position: relative;
      display: flex;
      flex-direction: column;
    }

    .price-card.featured {
      border: 2px solid var(--primary-color);
      box-shadow: var(--shadow-lg);
      transform: scale(1.02);
    }

    .featured-tag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--gradient-hot);
      color: #ffffff;
      padding: 4px 16px;
      font-size: 12px;
      font-weight: 800;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 10px rgba(255, 42, 95, 0.3);
    }

    .price-card h3 {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .price-val-wrap {
      margin: 16px 0 24px;
    }

    .price-number {
      font-size: 40px;
      font-weight: 900;
      color: var(--secondary-color);
    }

    .price-unit {
      font-size: 14px;
      color: var(--text-muted);
    }

    .price-features-list {
      list-style: none;
      margin-bottom: 30px;
      flex-grow: 1;
    }

    .price-features-list li {
      font-size: 14px;
      color: var(--text-body);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .price-features-list li::before {
      content: '✓';
      color: var(--primary-color);
      font-weight: 900;
    }

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

    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .review-stars {
      color: var(--accent-yellow);
      font-size: 16px;
      margin-bottom: 14px;
    }

    .review-content {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }

    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }

    .reviewer-avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--gradient-neon);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 14px;
    }

    .reviewer-meta h5 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-dark);
    }

    .reviewer-meta span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* FAQ 手风琴折叠 */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

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

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

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

    .faq-icon {
      font-size: 20px;
      color: var(--secondary-color);
      transition: var(--transition);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
      background: #fafafa;
    }

    .faq-answer-inner {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 表单与交互区 */
    .form-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

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

    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-dark);
      outline: none;
      transition: var(--transition);
      background: #fdfdfd;
    }

    .form-control:focus {
      border-color: var(--secondary-color);
      box-shadow: 0 0 0 3px rgba(99, 51, 255, 0.12);
      background: #ffffff;
    }

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

    /* 最新文章与资讯 */
    .news-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;
      height: 100%;
      transition: var(--transition);
    }

    .news-card:hover {
      border-color: var(--primary-color);
      transform: translateY(-4px);
    }

    .news-card h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .news-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .news-link {
      font-size: 14px;
      font-weight: 700;
      color: var(--secondary-color);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .news-link:hover {
      color: var(--primary-color);
    }

    /* 客服与联系人网格 */
    .contact-info-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      font-size: 15px;
      color: var(--text-body);
    }

    .contact-icon-pill {
      background: var(--bg-alt);
      color: var(--secondary-color);
      padding: 6px 12px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 13px;
      white-space: nowrap;
    }

    .qr-box-wrap {
      text-align: center;
      padding: 20px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      display: inline-block;
    }

    .qr-box-wrap img {
      width: 140px;
      height: 140px;
      display: block;
      margin: 0 auto 10px;
      border-radius: var(--radius-sm);
      object-fit: contain;
    }

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

    /* 友情链接与版权页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      color: var(--text-body);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--text-muted);
      margin-top: 12px;
      line-height: 1.7;
    }

    .footer-col h5 {
      font-size: 16px;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 18px;
    }

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

    .footer-links-list a {
      color: var(--text-muted);
      font-size: 14px;
      text-decoration: none;
      transition: var(--transition);
    }

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

    .friendly-links-flow {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friendly-links-flow a {
      color: var(--text-muted);
      font-size: 13px;
      text-decoration: none;
      padding: 4px 10px;
      background: var(--bg-alt);
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }

    .friendly-links-flow a:hover {
      background: var(--secondary-color);
      color: #ffffff;
    }

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 浮动客服挂件与返回顶部 */
    .floating-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);
      color: var(--text-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      text-decoration: none;
      font-size: 18px;
      font-weight: 800;
      transition: var(--transition);
    }

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

    .float-btn.kefu-btn {
      background: var(--gradient-hot);
      color: #ffffff;
      border: none;
    }

    /* 响应式媒体查询 */
    @media (max-width: 992px) {
      .hero-title { font-size: 32px; }
      .hero-metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .grid-3, .pricing-grid, .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
      .process-grid, .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .grid-2 { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .header-inner { height: 64px; }
      .mobile-menu-toggle { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.active { display: flex; }
      .nav-item { width: 100%; text-align: center; margin-bottom: 10px; }
      .header-actions { display: none; }
      .hero-title { font-size: 26px; }
      .hero-desc { font-size: 15px; }
      .hero-metrics-grid { grid-template-columns: 1fr; }
      .grid-3, .pricing-grid, .testimonial-grid, .process-grid, .grid-4 { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .eval-badge-box { flex-direction: column; text-align: center; gap: 16px; }
      .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
    }