:root {
      --bg-base: #F8FAFC;
      --bg-surface: #FFFFFF;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-sub: #475569;
      --text-muted: #64748B;
      --c-blue: #2563EB;
      --c-indigo: #4F46E5;
      --c-orange: #FF5500;
      --c-pink: #EC4899;
      --c-amber: #F59E0B;
      --c-emerald: #10B981;
      --c-cyan: #06B6D4;
      --c-purple: #8B5CF6;
      --c-dark: #0B1120;
      --border-light: rgba(15, 23, 42, 0.08);
      --border-bright: rgba(37, 99, 235, 0.25);
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.07);
      --shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.1);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
      --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition-fast);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
      width: 100%;
    }
    .section-spacing {
      padding: 80px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      margin-bottom: 50px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #EFF6FF;
      color: var(--c-blue);
      border: 1px solid rgba(37, 99, 235, 0.2);
      font-size: 13px;
      font-weight: 700;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
      text-transform: uppercase;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* Top Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-wrap .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }
    .brand-name {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .brand-tag {
      background: var(--c-orange);
      color: #fff;
      font-size: 11px;
      font-weight: 700;
      padding: 2px 6px;
      border-radius: 4px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }
    .nav-links li a {
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-sub);
      border-radius: var(--radius-sm);
      display: inline-block;
    }
    .nav-links li a:hover {
      color: var(--c-blue);
      background: rgba(37, 99, 235, 0.05);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-nav-primary {
      background: linear-gradient(135deg, var(--c-blue) 0%, var(--c-indigo) 100%);
      color: #FFFFFF !important;
      padding: 9px 20px;
      border-radius: var(--radius-full);
      font-size: 14px;
      font-weight: 700;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-nav-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    }
    .btn-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
      padding: 4px;
    }

    /* Hero Section (No images strictly) */
    .hero-section {
      padding: 70px 0 60px;
      background: radial-gradient(circle at 80% 20%, rgba(255, 85, 0, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 10% 80%, rgba(37, 99, 235, 0.08) 0%, transparent 45%),
                  #FFFFFF;
      border-bottom: 1px solid var(--border-light);
      position: relative;
    }
    .hero-wrapper {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content {
      text-align: left;
    }
    .hero-pill-bar {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FFF7ED;
      border: 1px solid #FFEDD5;
      padding: 6px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 20px;
    }
    .hero-pill-tag {
      background: var(--c-orange);
      color: #FFFFFF;
      font-size: 11px;
      font-weight: 800;
      padding: 2px 8px;
      border-radius: var(--radius-full);
    }
    .hero-pill-text {
      font-size: 13px;
      font-weight: 600;
      color: #9A3412;
    }
    .hero-h1 {
      font-size: 38px;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }
    .hero-h1 span {
      background: linear-gradient(135deg, var(--c-blue) 0%, var(--c-pink) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }
    .hero-lead {
      font-size: 17px;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 30px;
    }
    .hero-btn-group {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 36px;
    }
    .btn-hero-official {
      background: linear-gradient(135deg, var(--c-orange) 0%, #E11D48 100%);
      color: #FFFFFF !important;
      font-size: 16px;
      font-weight: 800;
      padding: 14px 32px;
      border-radius: var(--radius-full);
      box-shadow: 0 10px 24px rgba(255, 85, 0, 0.35);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition-smooth);
    }
    .btn-hero-official:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(255, 85, 0, 0.45);
    }
    .btn-hero-secondary {
      background: #FFFFFF;
      color: var(--text-main);
      border: 2px solid #E2E8F0;
      font-size: 16px;
      font-weight: 700;
      padding: 12px 28px;
      border-radius: var(--radius-full);
      transition: var(--transition-smooth);
    }
    .btn-hero-secondary:hover {
      border-color: var(--c-blue);
      color: var(--c-blue);
      background: #F8FAFC;
    }
    .hero-highlight-points {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      padding-top: 20px;
      border-top: 1px dashed #CBD5E1;
    }
    .point-item {
      display: flex;
      flex-direction: column;
    }
    .point-num {
      font-size: 24px;
      font-weight: 900;
      color: var(--c-blue);
      line-height: 1;
      margin-bottom: 4px;
    }
    .point-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* Hero Right Showcase (Pure CSS Geometric & Code Panel) */
    .hero-showcase {
      background: #FFFFFF;
      border: 2px solid #E2E8F0;
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }
    .hero-showcase-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid #F1F5F9;
      padding-bottom: 14px;
      margin-bottom: 18px;
    }
    .window-dots {
      display: flex;
      gap: 6px;
    }
    .window-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .dot-red { background: #EF4444; }
    .dot-yellow { background: #F59E0B; }
    .dot-green { background: #10B981; }
    .showcase-status {
      font-size: 12px;
      font-weight: 700;
      color: var(--c-emerald);
      background: #ECFDF5;
      padding: 3px 8px;
      border-radius: var(--radius-full);
    }
    .model-tags-scroll {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 20px;
    }
    .model-tag {
      background: #F1F5F9;
      color: var(--text-main);
      font-size: 12px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 6px;
      border: 1px solid #E2E8F0;
    }
    .model-tag.highlight {
      background: #EFF6FF;
      color: var(--c-blue);
      border-color: #BFDBFE;
    }
    .hero-pipeline-box {
      background: #0F172A;
      color: #E2E8F0;
      padding: 16px;
      border-radius: var(--radius-md);
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 13px;
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .pipeline-line {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 6px;
    }
    .pipeline-line:last-child {
      margin-bottom: 0;
    }
    .code-accent { color: #38BDF8; }
    .code-param { color: #F472B6; }
    .code-success { color: #4ADE80; }
    .code-gold { color: #FBBF24; }
    .showcase-badge-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
    }
    .showcase-badge-card {
      background: #F8FAFC;
      border: 1px solid #E2E8F0;
      padding: 12px;
      border-radius: var(--radius-sm);
      text-align: left;
    }
    .showcase-badge-card h4 {
      font-size: 13px;
      color: var(--text-main);
      margin-bottom: 2px;
      font-weight: 700;
    }
    .showcase-badge-card p {
      font-size: 11px;
      color: var(--text-muted);
    }

    /* Grid & Cards Global */
    .cards-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .cards-grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .cards-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }
    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-smooth);
      position: relative;
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-bright);
    }
    .card-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 18px;
    }
    .icon-blue { background: #DBEAFE; color: var(--c-blue); }
    .icon-orange { background: #FFEDD5; color: var(--c-orange); }
    .icon-pink { background: #FCE7F3; color: var(--c-pink); }
    .icon-emerald { background: #D1FAE5; color: var(--c-emerald); }
    .icon-purple { background: #EDE9FE; color: var(--c-purple); }
    .icon-cyan { background: #CFFAFE; color: var(--c-cyan); }
    .card-title {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .card-desc {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
      flex-grow: 1;
    }
    .card-footer-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 16px;
      padding-top: 14px;
      border-top: 1px solid #F1F5F9;
    }
    .tag-chip {
      font-size: 11px;
      font-weight: 600;
      background: #F1F5F9;
      color: var(--text-sub);
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* Comparison Section */
    .compare-wrapper {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }
    .compare-top-badge {
      background: linear-gradient(90deg, #1E3A8A 0%, #2563EB 50%, #EC4899 100%);
      color: #FFFFFF;
      padding: 20px 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }
    .score-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .score-stars {
      color: #FBBF24;
      font-size: 20px;
      letter-spacing: 2px;
    }
    .score-val {
      font-size: 28px;
      font-weight: 900;
      color: #FFFFFF;
    }
    .table-responsive {
      width: 100%;
      overflow-x: auto;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #E2E8F0;
      font-size: 14px;
    }
    .compare-table th {
      background: #F8FAFC;
      color: var(--text-main);
      font-weight: 800;
    }
    .compare-table td:nth-child(2) {
      background: rgba(37, 99, 235, 0.03);
      font-weight: 700;
      color: var(--c-blue);
    }
    .badge-win {
      display: inline-block;
      background: #DCFCE7;
      color: #15803D;
      font-size: 12px;
      font-weight: 800;
      padding: 2px 8px;
      border-radius: 4px;
      margin-left: 6px;
    }

    /* Media/Cases Showcase Section */
    .case-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-smooth);
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .case-img-wrap {
      width: 100%;
      background: #F1F5F9;
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .case-img-wrap img {
      width: 100%;
      height: auto;
      object-fit: contain;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-img-wrap img {
      transform: scale(1.02);
    }
    .case-body {
      padding: 20px;
    }
    .case-cat {
      font-size: 12px;
      font-weight: 700;
      color: var(--c-orange);
      margin-bottom: 6px;
      text-transform: uppercase;
    }
    .case-h3 {
      font-size: 17px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .case-p {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.5;
    }

    /* Banner Gallery Wrap */
    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 30px;
    }
    .banner-item {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    /* Steps / Process Section */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }
    .process-step {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-badge {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--c-blue) 0%, var(--c-indigo) 100%);
      color: #FFFFFF;
      font-size: 14px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px;
    }
    .step-title {
      font-size: 16px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.5;
    }

    /* Token Pricing Table */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pricing-card {
      background: #FFFFFF;
      border: 2px solid #E2E8F0;
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-smooth);
      position: relative;
    }
    .pricing-card.featured {
      border-color: var(--c-orange);
      box-shadow: 0 12px 30px rgba(255, 85, 0, 0.12);
    }
    .pricing-popular-tag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--c-orange);
      color: #FFFFFF;
      font-size: 12px;
      font-weight: 800;
      padding: 4px 16px;
      border-radius: var(--radius-full);
      letter-spacing: 0.5px;
    }
    .pricing-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .pricing-price {
      font-size: 36px;
      font-weight: 900;
      color: var(--c-blue);
      margin-bottom: 4px;
    }
    .pricing-sub {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }
    .pricing-list {
      list-style: none;
      text-align: left;
      margin-bottom: 28px;
    }
    .pricing-list li {
      font-size: 14px;
      color: var(--text-sub);
      padding: 8px 0;
      border-bottom: 1px dashed #F1F5F9;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .pricing-list li::before {
      content: "✓";
      color: var(--c-emerald);
      font-weight: 900;
    }

    /* Testimonials / User Reviews */
    .testimonial-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #EEF2F6;
      color: var(--c-blue);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      border: 2px solid #E2E8F0;
    }
    .testi-info h4 {
      font-size: 15px;
      font-weight: 800;
      color: var(--text-main);
    }
    .testi-info p {
      font-size: 12px;
      color: var(--text-muted);
    }
    .testi-quote {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
      font-style: normal;
    }

    /* FAQ Section */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition-fast);
    }
    .faq-item.active {
      border-color: var(--border-bright);
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      user-select: none;
    }
    .faq-question:hover {
      color: var(--c-blue);
    }
    .faq-icon {
      font-size: 20px;
      transition: transform 0.3s ease;
      color: var(--text-muted);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--c-orange);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #F8FAFC;
      color: var(--text-sub);
      font-size: 14px;
      line-height: 1.7;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 16px 24px 20px;
      border-top: 1px solid #F1F5F9;
    }

    /* Smart Match & Contact Form */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }
    .contact-info {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .contact-h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .contact-desc {
      font-size: 15px;
      color: var(--text-sub);
      margin-bottom: 24px;
      line-height: 1.6;
    }
    .contact-direct-items {
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 24px;
    }
    .c-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 14px;
      color: var(--text-main);
    }
    .c-item-label {
      font-weight: 700;
      color: var(--text-sub);
      width: 80px;
    }
    .qr-box-inner {
      background: #F8FAFC;
      border: 1px solid #E2E8F0;
      border-radius: var(--radius-md);
      padding: 16px;
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .qr-box-inner img {
      width: 90px;
      height: 90px;
      object-fit: contain;
      border-radius: var(--radius-sm);
      border: 1px solid #CBD5E1;
      background: #fff;
    }
    .qr-text h5 {
      font-size: 14px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .qr-text p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.4;
    }

    /* Form Styles */
    .form-box {
      background: #F8FAFC;
      border: 1px solid #E2E8F0;
      border-radius: var(--radius-md);
      padding: 28px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 14px;
      border: 1px solid #CBD5E1;
      border-radius: var(--radius-sm);
      background: #FFFFFF;
      color: var(--text-main);
      outline: none;
      transition: var(--transition-fast);
    }
    .form-control:focus {
      border-color: var(--c-blue);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }
    .btn-submit {
      width: 100%;
      background: linear-gradient(135deg, var(--c-blue) 0%, var(--c-indigo) 100%);
      color: #FFFFFF;
      border: none;
      padding: 14px;
      font-size: 16px;
      font-weight: 800;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
      transition: var(--transition-fast);
    }
    .btn-submit:hover {
      background: linear-gradient(135deg, #1D4ED8 0%, #4338CA 100%);
      transform: translateY(-1px);
    }

    /* Articles Section */
    .articles-wrap {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-top: 16px;
    }
    .article-item-link {
      background: #F8FAFC;
      border: 1px solid #E2E8F0;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .article-item-link:hover {
      background: #EFF6FF;
      border-color: var(--c-blue);
      color: var(--c-blue);
    }

    /* Footer */
    .site-footer {
      background: #0F172A;
      color: #E2E8F0;
      padding: 60px 0 30px;
      border-top: 1px solid #1E293B;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }
    .footer-brand h3 {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 14px;
      color: #94A3B8;
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
      position: relative;
    }
    .footer-col ul {
      list-style: none;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      font-size: 13px;
      color: #94A3B8;
    }
    .footer-col ul li a:hover {
      color: #FFFFFF;
    }
    .friend-links-box {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      margin-bottom: 24px;
    }
    .friend-links-title {
      font-size: 13px;
      font-weight: 700;
      color: #94A3B8;
      margin-bottom: 10px;
    }
    .friend-links-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }
    .friend-links-flex a {
      font-size: 13px;
      color: #64748B;
    }
    .friend-links-flex a:hover {
      color: #38BDF8;
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 20px;
      text-align: center;
      font-size: 13px;
      color: #64748B;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* Floating Widget */
    .floating-assistant {
      position: fixed;
      right: 20px;
      bottom: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .btn-float {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-main);
      font-size: 18px;
      cursor: pointer;
      position: relative;
    }
    .btn-float.btn-float-wx {
      background: #07C160;
      color: #FFFFFF;
      border: none;
    }
    .float-qr-modal {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #FFFFFF;
      padding: 14px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid #E2E8F0;
      display: none;
      width: 170px;
      text-align: center;
    }
    .btn-float-wx:hover .float-qr-modal {
      display: block;
    }
    .float-qr-modal img {
      width: 140px;
      height: 140px;
      margin: 0 auto 6px;
    }
    .float-qr-modal p {
      font-size: 12px;
      color: var(--text-sub);
      font-weight: 700;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .hero-wrapper {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .cards-grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .cards-grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(3, 1fr);
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
      .banner-gallery {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .section-spacing {
        padding: 50px 0;
      }
      .section-title {
        font-size: 26px;
      }
      .hero-h1 {
        font-size: 28px;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        border-bottom: 1px solid var(--border-light);
        padding: 16px 24px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
        border-bottom: 1px solid #F1F5F9;
      }
      .btn-menu-toggle {
        display: block;
      }
      .cards-grid-3, .cards-grid-2, .cards-grid-4 {
        grid-template-columns: 1fr;
      }
      .token-grid {
        grid-template-columns: 1fr;
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .hero-highlight-points {
        grid-template-columns: 1fr;
        gap: 12px;
      }
      .article-links-grid {
        grid-template-columns: 1fr;
      }
      .banner-gallery {
        grid-template-columns: 1fr;
      }
    }