/* ==================== 1. CSS Reset & Variables (明艳撞色风) ==================== */
    :root {
      --bg-main: #f8fafc;
      --bg-surface: #ffffff;
      --bg-alt: #f1f5f9;
      --text-primary: #0f172a;
      --text-secondary: #334155;
      --text-muted: #64748b;
      
      /* 明艳撞色调色板 */
      --color-primary: #2563eb;      /* 电光蓝 */
      --color-primary-dark: #1d4ed8;
      --color-accent: #ff4d00;       /* 活力超橙 */
      --color-secondary: #7c3aed;    /* 极光紫 */
      --color-teal: #0d9488;         /* 霓虹青绿 */
      --color-amber: #f59e0b;        /* 亮金黄 */
      --color-rose: #e11d48;         /* 玫瑰艳红 */

      --card-border: rgba(15, 23, 42, 0.08);
      --card-shadow: 0 10px 25px -5px rgba(37, 99, 235, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --card-hover-shadow: 0 20px 35px -10px rgba(37, 99, 235, 0.16), 0 1px 3px rgba(0,0,0,0.05);
      
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --radius-full: 9999px;
      
      --container-max: 1240px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-main);
      color: var(--text-primary);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }

    body {
      overflow-x: hidden;
      line-height: 1.6;
      background: radial-gradient(circle at 10% 0%, rgba(37, 99, 235, 0.04) 0%, transparent 40%),
                  radial-gradient(circle at 90% 15%, rgba(255, 77, 0, 0.04) 0%, transparent 45%),
                  radial-gradient(circle at 50% 50%, rgba(124, 58, 237, 0.03) 0%, transparent 60%),
                  var(--bg-main);
    }

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

    ul, ol {
      list-style: none;
    }

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

    /* ==================== 2. Common Layout Components ==================== */
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

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

    .section-alt {
      background-color: #ffffff;
      border-top: 1px solid rgba(15, 23, 42, 0.05);
      border-bottom: 1px solid rgba(15, 23, 42, 0.05);
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      background: #eff6ff;
      color: var(--color-primary);
      border: 1px solid #bfdbfe;
      border-radius: var(--radius-full);
      font-size: 0.875rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 14px;
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--text-primary);
      line-height: 1.3;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-secondary);
      line-height: 1.65;
    }

    .highlight-accent {
      color: var(--color-accent);
    }
    .highlight-blue {
      color: var(--color-primary);
    }
    .highlight-purple {
      color: var(--color-secondary);
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      border-radius: var(--radius-full);
      font-size: 0.975rem;
      font-weight: 700;
      cursor: pointer;
      border: none;
      transition: var(--transition);
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--color-primary), #1d4ed8);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
      color: #ffffff;
    }

    .btn-accent {
      background: linear-gradient(135deg, var(--color-accent), #e03e00);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 77, 0, 0.35);
    }
    .btn-accent:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 77, 0, 0.45);
      color: #ffffff;
    }

    .btn-outline {
      background: #ffffff;
      color: var(--text-primary);
      border: 1.5px solid #cbd5e1;
    }
    .btn-outline:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
      background: #eff6ff;
    }

    /* ==================== 3. Header & Navigation ==================== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(15, 23, 42, 0.08);
      transition: var(--transition);
    }

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

    .logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 1.35rem;
      color: var(--text-primary);
    }
    .logo-area img.ai-page-logo {
      height: 38px;
      width: auto;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* Required: gap property set to 0 */
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.925rem;
      font-weight: 600;
      color: var(--text-secondary);
      border-radius: var(--radius-sm);
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--color-primary);
      background: rgba(37, 99, 235, 0.06);
    }

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

    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid #cbd5e1;
      padding: 8px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      color: var(--text-primary);
    }

    /* ==================== 4. Hero Section (Strictly NO IMAGES) ==================== */
    .hero-section {
      padding: 90px 0 80px 0;
      position: relative;
      overflow: hidden;
      background: linear-gradient(180deg, #ffffff 0%, rgba(241, 245, 249, 0.6) 100%);
      border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    }

    .hero-wrapper {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 20px;
      background: #fff7ed;
      border: 1.5px solid #ffedd5;
      border-radius: var(--radius-full);
      color: var(--color-accent);
      font-size: 0.925rem;
      font-weight: 700;
      margin-bottom: 24px;
      box-shadow: 0 4px 12px rgba(255, 77, 0, 0.08);
      animation: pulse 3s infinite ease-in-out;
    }

    .hero-h1 {
      font-size: 3.15rem;
      font-weight: 900;
      line-height: 1.22;
      color: var(--text-primary);
      margin-bottom: 22px;
      letter-spacing: -1px;
    }

    .hero-lead {
      font-size: 1.2rem;
      color: var(--text-secondary);
      line-height: 1.7;
      max-width: 820px;
      margin-bottom: 36px;
    }

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

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      width: 100%;
      margin-top: 10px;
    }

    .hero-stat-card {
      background: #ffffff;
      padding: 22px 18px;
      border-radius: var(--radius-md);
      border: 1.5px solid rgba(15, 23, 42, 0.07);
      box-shadow: var(--card-shadow);
      text-align: center;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .hero-stat-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    }
    .hero-stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-hover-shadow);
      border-color: #bfdbfe;
    }
    .hero-stat-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--color-primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .hero-stat-label {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-secondary);
    }

    /* ==================== 5. Model Matrix Showcase ==================== */
    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      margin-top: 30px;
    }
    .model-tag {
      padding: 8px 16px;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-full);
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--text-secondary);
      box-shadow: 0 2px 6px rgba(0,0,0,0.03);
      transition: var(--transition);
    }
    .model-tag:hover {
      background: var(--color-primary);
      color: #ffffff;
      border-color: var(--color-primary);
      transform: translateY(-2px);
    }

    /* ==================== 6. Service & Capabilities Grid ==================== */
    .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: 28px;
    }

    .service-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 30px 24px;
      border: 1.5px solid var(--card-border);
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--card-hover-shadow);
      border-color: rgba(37, 99, 235, 0.3);
    }

    .card-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: bold;
      margin-bottom: 20px;
      color: #ffffff;
    }
    .icon-blue { background: linear-gradient(135deg, #2563eb, #1d4ed8); }
    .icon-orange { background: linear-gradient(135deg, #ff5722, #ea580c); }
    .icon-purple { background: linear-gradient(135deg, #7c3aed, #6d28d9); }
    .icon-teal { background: linear-gradient(135deg, #0d9488, #0f766e); }
    .icon-rose { background: linear-gradient(135deg, #e11d48, #be123c); }
    .icon-amber { background: linear-gradient(135deg, #f59e0b, #d97706); }

    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 0.925rem;
      color: var(--text-secondary);
      line-height: 1.6;
      flex-grow: 1;
    }

    .card-footer-badge {
      margin-top: 18px;
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--color-primary);
      background: #eff6ff;
      padding: 4px 10px;
      border-radius: var(--radius-full);
      width: fit-content;
    }

    /* ==================== 7. Creation Scenarios Showcase ==================== */
    .scenario-item {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      box-shadow: 0 4px 12px rgba(0,0,0,0.03);
      transition: var(--transition);
    }
    .scenario-item:hover {
      border-color: var(--color-accent);
      transform: translateY(-3px);
      box-shadow: 0 10px 20px rgba(255, 77, 0, 0.08);
    }
    .scenario-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 10px;
    }
    .scenario-title {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-primary);
    }
    .scenario-tag {
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      background: #f8fafc;
      border: 1px solid #cbd5e1;
      color: var(--text-secondary);
    }
    .scenario-desc {
      font-size: 0.9rem;
      color: var(--text-secondary);
      line-height: 1.55;
    }

    /* ==================== 8. Comparison Section (评分9.9 / 五星) ==================== */
    .comparison-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 2px solid #bfdbfe;
      box-shadow: 0 20px 40px -15px rgba(37, 99, 235, 0.12);
    }

    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      padding: 24px 30px;
      background: linear-gradient(135deg, #1e293b, #0f172a);
      border-radius: var(--radius-md);
      color: #ffffff;
      margin-bottom: 36px;
    }
    .rating-score-box {
      display: flex;
      align-items: baseline;
      gap: 8px;
    }
    .rating-score {
      font-size: 3.2rem;
      font-weight: 900;
      color: #facc15;
      line-height: 1;
    }
    .rating-scale {
      font-size: 1.1rem;
      color: #94a3b8;
    }
    .stars {
      color: #facc15;
      font-size: 1.3rem;
      letter-spacing: 2px;
    }
    .rating-summary-text h4 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 4px;
    }
    .rating-summary-text p {
      font-size: 0.9rem;
      color: #cbd5e1;
    }

    .comparison-table-wrap {
      overflow-x: auto;
    }
    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .comparison-table th, 
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #e2e8f0;
      font-size: 0.95rem;
    }
    .comparison-table th {
      background: #f8fafc;
      color: var(--text-primary);
      font-weight: 800;
    }
    .comparison-table tr:hover td {
      background: #f8fafc;
    }
    .comparison-table td.brand-col {
      background: rgba(37, 99, 235, 0.04);
      font-weight: 700;
      color: var(--color-primary);
      border-left: 2px solid var(--color-primary);
      border-right: 2px solid var(--color-primary);
    }
    .comparison-table th.brand-col {
      background: #eff6ff;
      color: var(--color-primary);
      border-left: 2px solid var(--color-primary);
      border-right: 2px solid var(--color-primary);
      border-top: 2px solid var(--color-primary);
    }
    .comparison-table tr:last-child td.brand-col {
      border-bottom: 2px solid var(--color-primary);
    }

    /* ==================== 9. Case Gallery Images ==================== */
    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1.5px solid var(--card-border);
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--card-hover-shadow);
    }
    .case-img-wrap {
      width: 100%;
      background: #e2e8f0;
      overflow: hidden;
      position: relative;
    }
    .case-img-wrap img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-img-wrap img {
      transform: scale(1.04);
    }
    .case-content {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .case-title {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 8px;
    }
    .case-desc {
      font-size: 0.885rem;
      color: var(--text-secondary);
      line-height: 1.55;
      margin-bottom: 14px;
      flex-grow: 1;
    }

    /* ==================== 10. Process & Workflow ==================== */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }
    .step-box {
      background: #ffffff;
      padding: 26px 18px;
      border-radius: var(--radius-md);
      border: 1.5px solid #e2e8f0;
      text-align: center;
      position: relative;
      transition: var(--transition);
    }
    .step-box:hover {
      border-color: var(--color-primary);
      transform: translateY(-4px);
    }
    .step-num {
      width: 38px;
      height: 38px;
      background: var(--color-primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      margin: 0 auto 16px auto;
      font-size: 1.1rem;
    }
    .step-box:nth-child(2) .step-num { background: var(--color-accent); }
    .step-box:nth-child(3) .step-num { background: var(--color-secondary); }
    .step-box:nth-child(4) .step-num { background: var(--color-teal); }
    .step-box:nth-child(5) .step-num { background: var(--color-amber); }
    .step-title {
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 0.85rem;
      color: var(--text-secondary);
      line-height: 1.5;
    }

    /* ==================== 11. Customer Reviews (6 items) ==================== */
    .review-card {
      background: #ffffff;
      padding: 26px;
      border-radius: var(--radius-md);
      border: 1.5px solid var(--card-border);
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }
    .review-card:hover {
      border-color: #93c5fd;
      transform: translateY(-4px);
      box-shadow: var(--card-hover-shadow);
    }
    .review-text {
      font-size: 0.95rem;
      color: var(--text-secondary);
      line-height: 1.65;
      margin-bottom: 20px;
      position: relative;
    }
    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 16px;
    }
    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #2563eb, #ff4d00);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }
    .user-meta h5 {
      font-size: 0.95rem;
      font-weight: 800;
      color: var(--text-primary);
    }
    .user-meta p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* ==================== 12. FAQ Accordion ==================== */
    .faq-container {
      max-width: 920px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1.5px solid #e2e8f0;
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item.active {
      border-color: var(--color-primary);
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
    }
    .faq-question {
      padding: 20px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-primary);
      user-select: none;
    }
    .faq-icon {
      font-size: 1.4rem;
      font-weight: 400;
      color: var(--color-primary);
      transition: transform 0.25s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--color-accent);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #f8fafc;
      border-top: 1px solid transparent;
    }
    .faq-item.active .faq-answer {
      border-top-color: #e2e8f0;
    }
    .faq-answer-inner {
      padding: 20px 24px;
      font-size: 0.95rem;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* ==================== 13. Requirement Form & Contact ==================== */
    .contact-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1.5px solid var(--card-border);
      box-shadow: var(--card-shadow);
    }

    .form-group {
      margin-bottom: 20px;
    }
    .form-label {
      display: block;
      font-size: 0.925rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 8px;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1.5px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      font-family: inherit;
      color: var(--text-primary);
      background: #f8fafc;
      transition: var(--transition);
    }
    .form-control:focus {
      outline: none;
      border-color: var(--color-primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }

    .contact-info-panel {
      background: linear-gradient(135deg, #1e293b, #0f172a);
      border-radius: var(--radius-md);
      padding: 34px;
      color: #ffffff;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .info-list {
      margin: 24px 0;
    }
    .info-list-item {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
      font-size: 0.95rem;
      color: #cbd5e1;
    }
    .info-list-item strong {
      color: #ffffff;
    }
    .qr-box {
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-sm);
      display: inline-block;
      width: fit-content;
      text-align: center;
      color: var(--text-primary);
    }
    .qr-box img {
      width: 130px;
      height: 130px;
      object-fit: contain;
      margin: 0 auto 6px auto;
    }
    .qr-box span {
      font-size: 0.775rem;
      font-weight: 700;
      color: var(--text-secondary);
      display: block;
    }

    /* ==================== 14. Articles & Dynamic Content ==================== */
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      margin-top: 24px;
    }
    .article-card {
      background: #ffffff;
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      box-shadow: 0 2px 8px rgba(0,0,0,0.02);
      transition: var(--transition);
    }
    .article-card:hover {
      border-color: var(--color-primary);
      transform: translateY(-3px);
    }
    .article-card a {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-primary);
      display: block;
      margin-bottom: 8px;
    }
    .article-card a:hover {
      color: var(--color-primary);
    }

    /* ==================== 15. Footer ==================== */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px 0;
      border-top: 4px solid var(--color-primary);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 18px;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      color: #cbd5e1;
      font-size: 0.9rem;
    }
    .footer-col ul li a:hover {
      color: #ffffff;
      padding-left: 4px;
    }
    .friend-links-box {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 24px 0;
      margin-bottom: 24px;
    }
    .friend-links-title {
      font-size: 0.875rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 12px;
    }
    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }
    .friend-links-list a {
      color: #94a3b8;
      font-size: 0.85rem;
    }
    .friend-links-list a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* Floating Widget */
    .floating-tools {
      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;
      box-shadow: 0 4px 15px rgba(0,0,0,0.15);
      border: 1px solid #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--text-primary);
      transition: var(--transition);
      font-size: 1.2rem;
    }
    .float-btn:hover {
      background: var(--color-primary);
      color: #ffffff;
      transform: scale(1.08);
    }

    /* ==================== 16. Responsive Queries ==================== */
    @media (max-width: 1024px) {
      .hero-h1 { font-size: 2.6rem; }
      .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .process-steps { grid-template-columns: repeat(3, 1fr); }
      .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
      .contact-layout { grid-template-columns: 1fr; }
    }

    @media (max-width: 768px) {
      .section { padding: 50px 0; }
      .hero-h1 { font-size: 2rem; }
      .hero-lead { font-size: 1rem; }
      .grid-3, .grid-4, .grid-2, .process-steps, .hero-stats-grid, .article-links-grid { grid-template-columns: 1fr; }
      .mobile-menu-btn { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 2px solid var(--color-primary);
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
      }
      .nav-links.show { display: flex; }
      .nav-links li { width: 100%; text-align: center; }
      .nav-links li a { display: block; padding: 12px; }
      .footer-grid { grid-template-columns: 1fr; }
      .comparison-wrapper { padding: 20px; }
      .rating-banner { flex-direction: column; align-items: flex-start; }
    }

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