:root {
      --bg-base: #f6f8fc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --neon-cyan: #06b6d4;
      --neon-emerald: #10b981;
      --neon-purple: #8b5cf6;
      --neon-pink: #ec4899;
      --neon-blue: #3b82f6;
      --border-soft: rgba(226, 232, 240, 0.9);
      --border-neon: rgba(6, 182, 212, 0.4);
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(6, 182, 212, 0.1), 0 8px 10px -6px rgba(139, 92, 246, 0.08);
      --shadow-hover: 0 20px 35px -5px rgba(6, 182, 212, 0.2), 0 10px 15px -5px rgba(16, 185, 129, 0.15);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --container-width: 1200px;
      --transition-fast: 0.25s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.65;
      position: relative;
      background-image: 
        radial-gradient(at 0% 0%, rgba(6, 182, 212, 0.08) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(139, 92, 246, 0.08) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(16, 185, 129, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(236, 72, 153, 0.06) 0px, transparent 50%);
      background-attachment: fixed;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    .container {
      width: 100%;
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-soft);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    }

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

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

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

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: #0f172a;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .brand-badge {
      font-size: 11px;
      font-weight: 700;
      color: #0284c7;
      background: rgba(6, 182, 212, 0.12);
      border: 1px solid rgba(6, 182, 212, 0.3);
      padding: 2px 8px;
      border-radius: 20px;
    }

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

    .nav-links li a {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-muted);
      padding: 10px 14px;
      display: inline-block;
      transition: color var(--transition-fast);
      position: relative;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: #0284c7;
    }

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

    .btn-nav-primary {
      padding: 8px 18px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      background: linear-gradient(135deg, #06b6d4, #3b82f6);
      color: #ffffff !important;
      box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
      transition: transform var(--transition-fast), box-shadow var(--transition-fast);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-nav-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(6, 182, 212, 0.45);
    }

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

    .section-spacing {
      padding-top: 80px;
      padding-bottom: 80px;
    }

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

    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 14px;
      border-radius: 30px;
      background: rgba(6, 182, 212, 0.1);
      color: #0891b2;
      border: 1px solid rgba(6, 182, 212, 0.3);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

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

    .hero-section {
      padding: 90px 0 80px 0;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(240, 249, 255, 0.85) 100%);
    }

    .hero-glow-1 {
      position: absolute;
      top: -120px;
      left: 10%;
      width: 420px;
      height: 420px;
      background: radial-gradient(circle, rgba(6, 182, 212, 0.22) 0%, rgba(6, 182, 212, 0) 70%);
      filter: blur(40px);
      pointer-events: none;
      z-index: 0;
    }

    .hero-glow-2 {
      position: absolute;
      top: 40px;
      right: 5%;
      width: 480px;
      height: 480px;
      background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, rgba(139, 92, 246, 0) 70%);
      filter: blur(50px);
      pointer-events: none;
      z-index: 0;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid rgba(6, 182, 212, 0.4);
      border-radius: 40px;
      box-shadow: 0 4px 15px rgba(6, 182, 212, 0.15);
      margin-bottom: 24px;
      font-size: 13px;
      font-weight: 600;
      color: #0369a1;
    }

    .hero-pill-sparkle {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 10px #10b981;
      animation: pulse 1.8s infinite;
    }

    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: #0f172a;
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }

    .hero-desc {
      font-size: 18px;
      color: #334155;
      margin-bottom: 36px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      font-weight: 500;
    }

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

    .btn-hero-primary {
      padding: 14px 34px;
      font-size: 16px;
      font-weight: 700;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, #06b6d4, #2563eb);
      color: #ffffff;
      box-shadow: 0 10px 25px -5px rgba(6, 182, 212, 0.4), 0 0 15px rgba(37, 99, 235, 0.3);
      transition: all var(--transition-fast);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 15px 30px -5px rgba(6, 182, 212, 0.5), 0 0 20px rgba(37, 99, 235, 0.4);
    }

    .btn-hero-secondary {
      padding: 14px 28px;
      font-size: 16px;
      font-weight: 600;
      border-radius: var(--radius-md);
      background: #ffffff;
      border: 1px solid rgba(139, 92, 246, 0.4);
      color: #6d28d9;
      box-shadow: 0 4px 15px rgba(139, 92, 246, 0.1);
      transition: all var(--transition-fast);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-secondary:hover {
      background: #fbfbfe;
      border-color: #8b5cf6;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(139, 92, 246, 0.18);
    }

    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-metric-card {
      background: #ffffff;
      padding: 20px 16px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(6, 182, 212, 0.25);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: transform var(--transition-fast), border-color var(--transition-fast);
    }

    .hero-metric-card:hover {
      transform: translateY(-3px);
      border-color: var(--neon-cyan);
      box-shadow: var(--shadow-md);
    }

    .metric-value {
      font-size: 28px;
      font-weight: 800;
      color: #0284c7;
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
    }

    .model-ticker {
      background: #ffffff;
      border-top: 1px solid var(--border-soft);
      border-bottom: 1px solid var(--border-soft);
      padding: 16px 0;
      overflow: hidden;
    }

    .ticker-wrapper {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .ticker-title {
      font-size: 13px;
      font-weight: 700;
      color: #0f172a;
      white-space: nowrap;
      padding-right: 15px;
      border-right: 2px solid var(--border-soft);
      display: flex;
      align-items: center;
      gap: 6px;
    }

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

    .tag-pill {
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 20px;
      background: #f1f5f9;
      color: #334155;
      border: 1px solid #cbd5e1;
      transition: all var(--transition-fast);
    }

    .tag-pill:hover {
      background: #e0f2fe;
      color: #0369a1;
      border-color: #38bdf8;
      box-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
    }

    .grid-2col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .about-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px;
      border: 1px solid rgba(6, 182, 212, 0.3);
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .about-list {
      list-style: none;
      margin-top: 20px;
      display: grid;
      gap: 14px;
    }

    .about-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 15px;
      color: #334155;
    }

    .check-icon {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: rgba(16, 185, 129, 0.15);
      color: #059669;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: bold;
      flex-shrink: 0;
      margin-top: 2px;
    }

    .image-media-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid rgba(226, 232, 240, 0.9);
      box-shadow: var(--shadow-md);
      background: #ffffff;
      position: relative;
    }

    .image-media-box img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s ease;
    }

    .image-media-box:hover img {
      transform: scale(1.02);
    }

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

    .feature-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-soft);
      box-shadow: var(--shadow-sm);
      transition: all var(--transition-fast);
      position: relative;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(6, 182, 212, 0.4);
    }

    .feature-icon-wrapper {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
      background: linear-gradient(135deg, rgba(6, 182, 212, 0.12), rgba(139, 92, 246, 0.12));
      color: #0284c7;
      border: 1px solid rgba(6, 182, 212, 0.3);
    }

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

    .feature-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

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

    .scenario-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border-top: 4px solid var(--neon-cyan);
      border-left: 1px solid var(--border-soft);
      border-right: 1px solid var(--border-soft);
      border-bottom: 1px solid var(--border-soft);
      box-shadow: var(--shadow-sm);
      transition: all var(--transition-fast);
    }

    .scenario-card:nth-child(2n) {
      border-top-color: var(--neon-purple);
    }

    .scenario-card:nth-child(3n) {
      border-top-color: var(--neon-emerald);
    }

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

    .scenario-tag {
      font-size: 11px;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      background: #f1f5f9;
      color: #475569;
      display: inline-block;
      margin-bottom: 12px;
    }

    .scenario-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .scenario-desc {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.55;
    }

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

    .step-card {
      background: #ffffff;
      padding: 26px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-soft);
      box-shadow: var(--shadow-sm);
      position: relative;
      text-align: center;
    }

    .step-num {
      width: 40px;
      height: 40px;
      margin: 0 auto 16px auto;
      border-radius: 50%;
      background: linear-gradient(135deg, #06b6d4, #8b5cf6);
      color: #ffffff;
      font-weight: 800;
      font-size: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px rgba(6, 182, 212, 0.35);
    }

    .step-name {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .gallery-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      background: #ffffff;
      border: 1px solid var(--border-soft);
      box-shadow: var(--shadow-sm);
      transition: all var(--transition-fast);
    }

    .gallery-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(6, 182, 212, 0.4);
    }

    .gallery-item img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    .gallery-info {
      padding: 12px;
      text-align: center;
      font-size: 13px;
      font-weight: 600;
      color: #334155;
    }

    .eval-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid rgba(6, 182, 212, 0.4);
      box-shadow: var(--shadow-md);
      position: relative;
      overflow: hidden;
    }

    .eval-banner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 30px;
      margin-bottom: 30px;
      border-bottom: 1px solid var(--border-soft);
    }

    .score-badge {
      display: flex;
      align-items: baseline;
      gap: 6px;
      background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(16, 185, 129, 0.12));
      border: 1px solid rgba(6, 182, 212, 0.35);
      padding: 12px 24px;
      border-radius: var(--radius-md);
    }

    .score-big {
      font-size: 42px;
      font-weight: 900;
      color: #0284c7;
      line-height: 1;
    }

    .score-max {
      font-size: 16px;
      color: var(--text-light);
      font-weight: 600;
    }

    .stars-badge {
      font-size: 20px;
      color: #eab308;
      letter-spacing: 2px;
    }

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

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .custom-table th,
    .custom-table td {
      padding: 16px;
      font-size: 14px;
      border-bottom: 1px solid #edf2f7;
    }

    .custom-table th {
      background: #f8fafc;
      font-weight: 700;
      color: #1e293b;
    }

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

    .highlight-cell {
      background: rgba(6, 182, 212, 0.04);
      color: #0369a1;
      font-weight: 700;
    }

    .badge-win {
      display: inline-block;
      padding: 3px 10px;
      border-radius: 12px;
      font-size: 12px;
      font-weight: 700;
      background: rgba(16, 185, 129, 0.15);
      color: #059669;
      border: 1px solid rgba(16, 185, 129, 0.3);
    }

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

    .testimonial-card {
      background: #ffffff;
      padding: 26px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-soft);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all var(--transition-fast);
    }

    .testimonial-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(139, 92, 246, 0.35);
    }

    .testi-content {
      font-size: 14px;
      color: #334155;
      line-height: 1.6;
      margin-bottom: 16px;
      font-style: normal;
    }

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

    .user-avatar-initial {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #06b6d4, #8b5cf6);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
    }

    .user-info-name {
      font-size: 14px;
      font-weight: 700;
      color: #0f172a;
    }

    .user-info-role {
      font-size: 12px;
      color: #64748b;
    }

    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: grid;
      gap: 14px;
    }

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

    .faq-item:hover {
      border-color: rgba(6, 182, 212, 0.4);
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 15px;
      font-weight: 700;
      color: #1e293b;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-arrow {
      font-size: 12px;
      color: #94a3b8;
      transition: transform 0.3s ease;
    }

    .faq-answer {
      padding: 0 24px 18px 24px;
      font-size: 14px;
      color: #475569;
      line-height: 1.65;
      display: none;
    }

    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
      color: #0284c7;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    .form-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid rgba(6, 182, 212, 0.3);
      box-shadow: var(--shadow-md);
    }

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

    .form-group-full {
      grid-column: 1 / -1;
    }

    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: #334155;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid #cbd5e1;
      font-size: 14px;
      color: #0f172a;
      background: #f8fafc;
      transition: all var(--transition-fast);
      outline: none;
    }

    .form-control:focus {
      border-color: #0284c7;
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2);
    }

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

    .btn-submit {
      width: 100%;
      padding: 14px;
      border: none;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, #06b6d4, #2563eb);
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 6px 20px rgba(6, 182, 212, 0.35);
      transition: all var(--transition-fast);
    }

    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(6, 182, 212, 0.45);
    }

    .contact-card-group {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 36px;
    }

    .contact-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-soft);
      box-shadow: var(--shadow-sm);
      text-align: center;
    }

    .contact-card-icon {
      font-size: 24px;
      color: #0284c7;
      margin-bottom: 12px;
    }

    .contact-card-title {
      font-size: 15px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 6px;
    }

    .contact-card-val {
      font-size: 13.5px;
      color: #475569;
      word-break: break-all;
    }

    .qr-container {
      text-align: center;
      padding: 24px;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-soft);
      box-shadow: var(--shadow-sm);
    }

    .qr-container img {
      max-width: 150px;
      height: auto;
      border-radius: 8px;
      border: 1px solid #e2e8f0;
      margin-bottom: 10px;
    }

    .article-links-container {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 24px;
    }

    .article-link-tag {
      padding: 8px 16px;
      border-radius: 20px;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      font-size: 13px;
      font-weight: 600;
      color: #1e293b;
      box-shadow: var(--shadow-sm);
      transition: all var(--transition-fast);
    }

    .article-link-tag:hover {
      border-color: #0284c7;
      color: #0284c7;
      box-shadow: var(--shadow-md);
    }

    .site-footer {
      background: #ffffff;
      border-top: 1px solid #e2e8f0;
      padding: 60px 0 30px 0;
      color: #475569;
    }

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

    .footer-col-title {
      font-size: 15px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 18px;
      position: relative;
    }

    .footer-list {
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .footer-list li a {
      font-size: 13.5px;
      color: #475569;
      transition: color var(--transition-fast);
    }

    .footer-list li a:hover {
      color: #0284c7;
    }

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

    .friend-links a {
      font-size: 12.5px;
      color: #64748b;
      background: #f1f5f9;
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid #e2e8f0;
      transition: all var(--transition-fast);
    }

    .friend-links a:hover {
      color: #0284c7;
      border-color: #0284c7;
    }

    .footer-bottom {
      border-top: 1px solid #f1f5f9;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: #64748b;
      flex-wrap: wrap;
      gap: 12px;
    }

    .float-panel {
      position: fixed;
      right: 20px;
      bottom: 80px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      color: #0284c7;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
      border: 1px solid rgba(6, 182, 212, 0.3);
      cursor: pointer;
      transition: all var(--transition-fast);
      position: relative;
    }

    .float-btn:hover {
      transform: scale(1.08);
      border-color: #0284c7;
      background: #f0f9ff;
    }

    .float-qr-box {
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-sm);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
      border: 1px solid #e2e8f0;
      display: none;
      width: 140px;
      text-align: center;
      z-index: 1000;
    }

    .float-qr-box img {
      width: 100%;
      height: auto;
      border-radius: 4px;
    }

    .float-btn-wechat:hover .float-qr-box {
      display: block;
    }

    .timeline-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 30px;
    }

    .timeline-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 20px;
      border-left: 3px solid #06b6d4;
      box-shadow: var(--shadow-sm);
    }

    .timeline-card-time {
      font-size: 12px;
      font-weight: 700;
      color: #0284c7;
      margin-bottom: 6px;
    }

    .timeline-card-title {
      font-size: 15px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 4px;
    }

    .timeline-card-desc {
      font-size: 13px;
      color: #64748b;
    }

    @media (max-width: 992px) {
      .hero-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .feature-grid,
      .scenario-grid,
      .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-container,
      .gallery-grid,
      .timeline-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-2col {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .contact-card-group {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px 0;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
        border-bottom: 1px solid #e2e8f0;
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li a {
        padding: 12px 24px;
        width: 100%;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 28px;
      }
      .hero-desc {
        font-size: 15px;
      }
      .section-title {
        font-size: 24px;
      }
      .feature-grid,
      .scenario-grid,
      .testimonials-grid,
      .steps-container,
      .gallery-grid,
      .timeline-container,
      .hero-metrics-grid,
      .contact-card-group {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }