:root {
      --primary: #4338ca;
      --primary-light: #6366f1;
      --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      --accent-coral: #f43f5e;
      --accent-cyan: #06b6d4;
      --accent-amber: #f59e0b;
      --accent-emerald: #10b981;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f1f5f9;
      --text-heading: #0f172a;
      --text-body: #334155;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
      --card-border: rgba(226, 232, 240, 0.9);
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 8px 24px -4px rgba(79, 70, 229, 0.08), 0 4px 12px -2px rgba(0,0,0,0.04);
      --shadow-lg: 0 16px 36px -6px rgba(79, 70, 229, 0.12), 0 8px 16px -4px rgba(0,0,0,0.04);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --container-max: 1200px;
    }

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

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

    body {
      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: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
      position: relative;
    }

    body::before {
      content: "";
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background: radial-gradient(circle at 15% 10%, rgba(99, 102, 241, 0.05) 0%, transparent 40%),
                  radial-gradient(circle at 85% 30%, rgba(236, 72, 153, 0.04) 0%, transparent 45%),
                  radial-gradient(circle at 50% 80%, rgba(6, 182, 212, 0.04) 0%, transparent 50%);
      pointer-events: none;
      z-index: -1;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }

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

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

    .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-heading);
      letter-spacing: -0.5px;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .brand-sub {
      font-size: 0.72rem;
      color: var(--text-muted);
      font-weight: 500;
    }

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

    .nav-item {
      position: relative;
    }

    .nav-link {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-heading);
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
    }

    .nav-link:hover, .nav-link.active {
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 0.95rem;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: var(--radius-full);
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
      opacity: 0.95;
    }

    .btn-secondary {
      background: #ffffff;
      color: var(--primary);
      border-color: #cbd5e1;
      box-shadow: var(--shadow-sm);
    }

    .btn-secondary:hover {
      background: #f8fafc;
      border-color: var(--primary-light);
      transform: translateY(-2px);
    }

    .btn-glow {
      position: relative;
      overflow: hidden;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-heading);
      cursor: pointer;
      padding: 6px;
    }

    .hero-section {
      padding: 70px 0 60px;
      position: relative;
      background: linear-gradient(180deg, #ffffff 0%, rgba(241, 245, 249, 0.6) 100%);
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .hero-inner {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: linear-gradient(90deg, rgba(79,70,229,0.1) 0%, rgba(236,72,153,0.1) 100%);
      border: 1px solid rgba(99, 102, 241, 0.25);
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 24px;
      box-shadow: 0 2px 8px rgba(79, 70, 229, 0.06);
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background: var(--accent-coral);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent-coral);
      animation: pulseDot 2s infinite;
    }

    @keyframes pulseDot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(1.3); }
    }

    .hero-title {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-heading);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title-highlight {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-body);
      max-width: 760px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

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

    .hero-cta-main {
      padding: 14px 34px;
      font-size: 1.08rem;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .hero-stat-card {
      background: #ffffff;
      padding: 20px 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      text-align: center;
    }

    .hero-stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(99, 102, 241, 0.3);
    }

    .stat-number {
      font-size: 1.8rem;
      font-weight: 800;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    .section-wrap {
      padding: 76px 0;
      position: relative;
    }

    .section-wrap.bg-white {
      background-color: #ffffff;
    }

    .section-wrap.bg-alt {
      background-color: #f8fafc;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
      padding: 4px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-heading);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .model-tags-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 40px;
    }

    .model-tags-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .model-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .model-badge {
      background: #f1f5f9;
      color: #1e293b;
      font-size: 0.84rem;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      border: 1px solid #e2e8f0;
      transition: all 0.2s ease;
    }

    .model-badge:hover {
      background: #4f46e5;
      color: #ffffff;
      border-color: #4f46e5;
      transform: translateY(-2px);
    }

    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, #4f46e5, #06b6d4);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(99, 102, 241, 0.3);
    }

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

    .service-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(79,70,229,0.12), rgba(236,72,153,0.12));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 18px;
    }

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

    .service-card-text {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }

    .service-card-tag {
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 3px 10px;
      background: #f1f5f9;
      color: var(--primary);
      border-radius: 4px;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-content {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .about-lead {
      font-size: 1.12rem;
      font-weight: 600;
      color: var(--text-heading);
      line-height: 1.7;
    }

    .about-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 10px;
    }

    .about-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.95rem;
      color: var(--text-body);
    }

    .about-check {
      width: 22px;
      height: 22px;
      background: rgba(16, 185, 129, 0.12);
      color: var(--accent-emerald);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 0.8rem;
      flex-shrink: 0;
      margin-top: 2px;
    }

    .about-image-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 16px;
      box-shadow: var(--shadow-md);
    }

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

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

    .process-step {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      box-shadow: var(--shadow-sm);
      text-align: left;
      position: relative;
      transition: transform 0.25s ease;
    }

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

    .step-badge {
      font-size: 0.8rem;
      font-weight: 800;
      color: var(--primary);
      background: rgba(79, 70, 229, 0.1);
      padding: 4px 10px;
      border-radius: var(--radius-full);
      display: inline-block;
      margin-bottom: 12px;
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
    }

    .case-img-wrap {
      position: relative;
      background: #f1f5f9;
      aspect-ratio: 16 / 10;
      overflow: hidden;
    }

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

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

    .case-body {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .case-category {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--accent-coral);
      margin-bottom: 6px;
      text-transform: uppercase;
    }

    .case-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 8px;
    }

    .case-text {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
      flex-grow: 1;
    }

    .case-result-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.82rem;
      font-weight: 600;
      color: #065f46;
      background: #d1fae5;
      padding: 4px 10px;
      border-radius: 6px;
    }

    .eval-card {
      background: linear-gradient(135deg, #ffffff 0%, #f8faff 100%);
      border: 2px solid rgba(99, 102, 241, 0.2);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
      margin-bottom: 40px;
    }

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

    .eval-brand-lead {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .eval-score-badge {
      display: flex;
      align-items: center;
      gap: 12px;
      background: #fdf2f8;
      border: 1px solid #fbcfe8;
      padding: 10px 20px;
      border-radius: var(--radius-md);
    }

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

    .score-digits {
      font-size: 1.6rem;
      font-weight: 900;
      color: #9d174d;
    }

    .score-max {
      font-size: 0.9rem;
      color: #831843;
      font-weight: 600;
    }

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

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }

    .compare-table th {
      background: #f1f5f9;
      color: var(--text-heading);
      font-weight: 700;
      padding: 16px 20px;
      border-bottom: 2px solid var(--border-color);
    }

    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-body);
    }

    .compare-table tr:hover td {
      background: #f8fafc;
    }

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

    .tag-strong-win {
      color: var(--primary);
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .tag-mid {
      color: var(--text-muted);
    }

    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .pricing-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all 0.3s ease;
    }

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

    .pricing-badge-popular {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary-gradient);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      box-shadow: 0 2px 8px rgba(79, 70, 229, 0.4);
    }

    .pricing-title {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text-heading);
      margin-bottom: 8px;
    }

    .pricing-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .pricing-price-box {
      margin-bottom: 24px;
    }

    .pricing-unit {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--text-heading);
    }

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

    .pricing-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 28px;
      flex-grow: 1;
    }

    .pricing-feature-item {
      font-size: 0.9rem;
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-body);
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-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: all 0.25s ease;
    }

    .review-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(99, 102, 241, 0.25);
    }

    .review-text {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 18px;
      position: relative;
    }

    .review-author-box {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }

    .review-avatar-char {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #e0e7ff, #fbcfe8);
      color: var(--primary);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
    }

    .review-author-name {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-heading);
    }

    .review-author-role {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    .faq-list {
      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;
      box-shadow: var(--shadow-sm);
      transition: border-color 0.2s ease;
    }

    .faq-item.open {
      border-color: var(--primary-light);
      box-shadow: var(--shadow-md);
    }

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      text-align: left;
      background: none;
      border: none;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-heading);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: color 0.2s ease;
    }

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

    .faq-icon-arrow {
      width: 20px;
      height: 20px;
      transition: transform 0.3s ease;
      color: var(--text-muted);
      flex-shrink: 0;
      margin-left: 12px;
    }

    .faq-item.open .faq-icon-arrow {
      transform: rotate(180deg);
      color: var(--primary);
    }

    .faq-answer {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1), padding 0.3s ease;
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    .faq-item.open .faq-answer {
      padding: 0 24px 20px 24px;
      max-height: 400px;
      transition: max-height 0.4s ease-in-out, padding 0.3s ease;
    }

    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 24px;
    }

    .article-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }

    .article-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(99, 102, 241, 0.3);
    }

    .article-meta-date {
      font-size: 0.78rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .article-link-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 10px;
      line-height: 1.45;
    }

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

    .article-excerpt {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 14px;
    }

    .article-more-link {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .article-shortcode-container {
      background: #f8fafc;
      border: 1px dashed var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      text-align: center;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .form-contact-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      align-items: stretch;
    }

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

    .form-title {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--text-heading);
      margin-bottom: 8px;
    }

    .form-sub {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

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

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 6px;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-body);
      background-color: #f8fafc;
      transition: all 0.2s ease;
      font-family: inherit;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

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

    .contact-info-card {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-info-title {
      font-size: 1.4rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 12px;
    }

    .contact-info-desc {
      font-size: 0.92rem;
      color: #cbd5e1;
      margin-bottom: 24px;
      line-height: 1.6;
    }

    .contact-items-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 24px;
    }

    .contact-item-row {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      color: #f1f5f9;
    }

    .contact-icon-bubble {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .qr-code-section {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 16px;
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .qr-img-wrap {
      width: 90px;
      height: 90px;
      background: #ffffff;
      padding: 4px;
      border-radius: 8px;
      flex-shrink: 0;
    }

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

    .qr-text-info {
      font-size: 0.88rem;
      color: #e2e8f0;
      line-height: 1.5;
    }

    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 28px;
      color: var(--text-body);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 16px;
    }

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

    .footer-link-list a {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

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

    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .friend-links-wrap a {
      display: inline-block;
      font-size: 0.82rem;
      color: var(--text-muted);
      background: #f1f5f9;
      padding: 4px 10px;
      border-radius: 4px;
      transition: all 0.2s ease;
    }

    .friend-links-wrap a:hover {
      background: var(--primary);
      color: #ffffff;
    }

    .footer-bottom-bar {
      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: 0.85rem;
      color: var(--text-muted);
    }

    .float-dock {
      position: fixed;
      right: 20px;
      bottom: 28px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 990;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.08);
    }

    @media (max-width: 1024px) {
      .service-grid, .cases-grid, .pricing-grid, .reviews-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-link {
        width: 100%;
        padding: 10px 0;
      }
      .nav-actions {
        display: none;
      }
      .hero-title {
        font-size: 2rem;
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .service-grid, .cases-grid, .pricing-grid, .reviews-grid, .articles-grid {
        grid-template-columns: 1fr;
      }
      .about-grid, .form-contact-grid {
        grid-template-columns: 1fr;
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
    }