/* --------------------------------------------------
       CSS RESET & BASE STYLES (Light Teal Tech Style)
       -------------------------------------------------- */
    :root {
      --primary-color: #0d9488;
      --primary-dark: #0f766e;
      --primary-light: #ccfbf1;
      --accent-color: #0284c7;
      --accent-light: #e0f2fe;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-section: #f1f5f9;
      --border-color: #e2e8f0;
      --border-focus: #0d9488;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 12px rgba(13, 148, 136, 0.08);
      --shadow-lg: 0 10px 25px rgba(15, 23, 42, 0.1);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
    }

    /* Container Standard */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    a {
      color: var(--primary-color);
      text-decoration: none;
      transition: var(--transition);
    }

    a:hover {
      color: var(--primary-dark);
    }

    /* Top Bar Header */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }

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

    .brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    /* Navigation Links: gap set to 0 as required */
    nav.main-nav {
      display: flex;
      align-items: center;
    }

    .nav-links {
      display: flex;
      list-style: none;
      align-items: center;
      gap: 0; /* Standard constraint requirement */
    }

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
      white-space: nowrap;
    }

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

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 18px;
      font-size: 0.9rem;
      font-weight: 600;
      color: #ffffff !important;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
      border-radius: 50px;
      box-shadow: var(--shadow-sm);
      margin-left: 15px;
    }

    .nav-cta:hover {
      transform: translateY(-1px);
      box-shadow: var(--shadow-md);
      opacity: 0.95;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 5px;
    }

    /* --------------------------------------------------
       SECTIONS GENERAL STYLES
       -------------------------------------------------- */
    section {
      padding: 70px 0;
      position: relative;
    }

    section:nth-child(even) {
      background-color: var(--bg-section);
    }

    .section-header {
      text-align: center;
      max-width: 750px;
      margin: 0 auto 50px;
    }

    .section-subtitle {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary-color);
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }

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

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 1rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      border: none;
      cursor: pointer;
      transition: var(--transition);
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary-color), #0f766e);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(13, 148, 136, 0.3);
    }

    .btn-primary:hover {
      color: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
    }

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

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

    /* Cards Base */
    .card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }

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

    /* --------------------------------------------------
       1. HERO SECTION (Strict Constraint: NO IMAGES inside Hero)
       -------------------------------------------------- */
    .hero-section {
      background: linear-gradient(180deg, #e6fffa 0%, var(--bg-main) 100%);
      padding: 90px 0 70px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .hero-section::before {
      content: '';
      position: absolute;
      top: -100px;
      left: 50%;
      transform: translateX(-50%);
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(13, 148, 136, 0.12) 0%, rgba(255,255,255,0) 70%);
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid rgba(13, 148, 136, 0.3);
      border-radius: 30px;
      font-size: 0.88rem;
      color: var(--primary-dark);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-badge span.highlight {
      background: var(--primary-color);
      color: #fff;
      padding: 2px 8px;
      border-radius: 12px;
      font-size: 0.75rem;
      font-weight: 700;
    }

    /* Rewritten H1 within 20 Chinese characters */
    h1.hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: linear-gradient(135deg, #0d9488, #0284c7);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 35px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }

    /* Model Badges Grid in Hero */
    .model-tags-wrapper {
      margin-top: 30px;
      padding-top: 25px;
      border-top: 1px solid var(--border-color);
    }

    .model-tags-label {
      font-size: 0.85rem;
      color: var(--text-light);
      margin-bottom: 12px;
      font-weight: 600;
    }

    .model-tags {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }

    .tag-chip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 4px 12px;
      border-radius: 6px;
      font-size: 0.8rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* --------------------------------------------------
       2. METRICS / STATS SECTION
       -------------------------------------------------- */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
    }

    .stat-card {
      text-align: center;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .stat-number {
      font-size: 2.4rem;
      font-weight: 800;
      color: var(--primary-color);
      line-height: 1;
      margin-bottom: 8px;
    }

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

    /* --------------------------------------------------
       3. ABOUT US (关于我们 & 平台介绍)
       -------------------------------------------------- */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.6rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .about-text p {
      color: var(--text-muted);
      margin-bottom: 16px;
      font-size: 0.98rem;
      line-height: 1.7;
    }

    .feature-list {
      list-style: none;
      margin-top: 20px;
    }

    .feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin-bottom: 12px;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .feature-list li::before {
      content: '✓';
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 20px;
      height: 20px;
      background: var(--primary-light);
      color: var(--primary-dark);
      border-radius: 50%;
      font-weight: bold;
      font-size: 0.75rem;
      flex-shrink: 0;
      margin-top: 2px;
    }

    /* Media Banner Box */
    .media-banner-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      background: #fff;
    }

    .media-banner-box img.ai-page-image {
      width: 100%;
      height: auto;
      display: block;
    }

    /* --------------------------------------------------
       4. AIGC SERVICES & ONE-STOP CREATION (服务能力与场景)
       -------------------------------------------------- */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
    }

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

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

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: bold;
      margin-bottom: 16px;
    }

    .service-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .service-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* --------------------------------------------------
       5. INDUSTRY SOLUTIONS (行业方案)
       -------------------------------------------------- */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
      gap: 24px;
    }

    .solution-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 28px;
      position: relative;
    }

    .solution-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--accent-color);
      background: var(--accent-light);
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
      display: inline-block;
    }

    .solution-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    /* --------------------------------------------------
       6. SERVICE NETWORK & PROCESS (服务网络 & 标准流程)
       -------------------------------------------------- */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      position: relative;
    }

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

    .step-number {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
      color: #fff;
      font-weight: 700;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      font-size: 0.95rem;
    }

    .step-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Network Cities Tag Cloud */
    .network-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 20px;
    }

    .network-city {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    .network-city.highlight {
      background: var(--primary-light);
      color: var(--primary-dark);
      border-color: var(--primary-color);
      font-weight: 600;
    }

    /* --------------------------------------------------
       7. CASES CENTER (案例中心)
       -------------------------------------------------- */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

    .case-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }

    .case-img-wrap {
      width: 100%;
      height: 180px;
      overflow: hidden;
      background: #e2e8f0;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .case-body {
      padding: 20px;
    }

    .case-category {
      font-size: 0.78rem;
      color: var(--primary-color);
      font-weight: 700;
      text-transform: uppercase;
      margin-bottom: 6px;
    }

    .case-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* --------------------------------------------------
       8. COMPARISON EVALUATION (对比评测)
       -------------------------------------------------- */
    .comparison-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 35px;
    }

    .score-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, #f0fdf4, #e6fffa);
      border: 1px solid #bbf7d0;
      border-radius: var(--radius-md);
      padding: 20px 30px;
      margin-bottom: 30px;
      flex-wrap: wrap;
      gap: 15px;
    }

    .score-item {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }

    .score-value {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--primary-dark);
    }

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

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

    .comparison-table th, .comparison-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }

    .comparison-table th {
      background: var(--bg-section);
      font-weight: 700;
      color: var(--text-main);
    }

    .comparison-table td.highlight-col {
      background: var(--primary-light);
      font-weight: 600;
      color: var(--primary-dark);
    }

    /* --------------------------------------------------
       9. TOKEN PRICING COMPARISON (Token比价)
       -------------------------------------------------- */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }

    .token-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      text-align: center;
    }

    .token-model {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .token-price-main {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary-color);
      margin-bottom: 4px;
    }

    .token-unit {
      font-size: 0.8rem;
      color: var(--text-light);
      margin-bottom: 14px;
    }

    /* --------------------------------------------------
       10. REVIEWS & TESTIMONIALS (客户评论 - 6条)
       -------------------------------------------------- */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      font-style: italic;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .author-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 0.9rem;
    }

    .author-info h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

    /* --------------------------------------------------
       11. FAQ ACCORDION (常见问题 - 10条以上)
       -------------------------------------------------- */
    .faq-container {
      max-width: 850px;
      margin: 0 auto;
    }

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

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.02rem;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-question::after {
      content: '+';
      font-size: 1.3rem;
      color: var(--primary-color);
      transition: transform 0.2s;
    }

    .faq-item.active .faq-question::after {
      content: '−';
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      padding: 0 24px;
      background: #fafafa;
    }

    .faq-answer-inner {
      padding: 16px 0;
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.6;
      border-top: 1px dashed var(--border-color);
    }

    /* --------------------------------------------------
       12. ARTICLES & WIKI (最新文章与AI百科)
       -------------------------------------------------- */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }

    .article-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
    }

    .article-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .article-link {
      font-size: 0.85rem;
      font-weight: 600;
    }

    /* --------------------------------------------------
       13. CONTACT & FORM & FRANCHISE (联系我们与智能需求)
       -------------------------------------------------- */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: start;
    }

    .contact-info-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
    }

    .contact-detail-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-bottom: 22px;
    }

    .contact-detail-icon {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: var(--primary-light);
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
    }

    .contact-detail-text h6 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

    .qr-container {
      margin-top: 20px;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .qr-container img {
      width: 110px;
      height: 110px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }

    /* Form Design */
    .form-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 10px 14px;
      font-size: 0.92rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background-color: var(--bg-main);
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary-color);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
    }

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

    /* --------------------------------------------------
       14. FOOTER (统一对齐, 无冗余大空白, 安全文字对比)
       -------------------------------------------------- */
    footer.site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 50px 0 25px;
      border-top: 1px solid #1e293b;
    }

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

    .footer-col h4 {
      color: #f8fafc;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
    }

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

    .footer-links li a {
      color: #94a3b8;
      font-size: 0.88rem;
    }

    .footer-links li a:hover {
      color: #38bdf8;
    }

    .friend-links-box {
      margin-top: 25px;
      padding-top: 20px;
      border-top: 1px solid #1e293b;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    .friend-links-box span {
      font-size: 0.85rem;
      color: #64748b;
      font-weight: bold;
    }

    .friend-links-box a {
      color: #94a3b8;
      font-size: 0.85rem;
    }

    .friend-links-box a:hover {
      color: #38bdf8;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 20px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* Floating Customer Service Button */
    .float-service {
      position: fixed;
      right: 20px;
      bottom: 20px;
      z-index: 999;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
      color: #ffffff;
      width: 50px;
      height: 50px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-lg);
      cursor: pointer;
      transition: var(--transition);
    }

    .float-service:hover {
      transform: scale(1.08);
    }

    /* Responsive Breakdown */
    @media (max-width: 992px) {
      .about-grid, .contact-grid {
        grid-template-columns: 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }

      h1.hero-title {
        font-size: 2.2rem;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }

      nav.main-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        box-shadow: var(--shadow-md);
      }

      nav.main-nav.open {
        display: block;
      }

      .nav-links {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
      }

      .nav-links li {
        width: 100%;
      }

      .nav-links li a {
        padding: 12px 16px;
        width: 100%;
      }

      .nav-cta {
        margin-left: 0;
        margin-top: 15px;
        width: 100%;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      h1.hero-title {
        font-size: 1.8rem;
      }

      .section-title {
        font-size: 1.6rem;
      }
    }