:root {
  --primary: #2563eb;
  --primary-gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 50%, #f43f5e 100%);
  --secondary: #06b6d4;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #475569;
  --border-light: #e2e8f0;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
  --shadow-md: 0 6px 20px rgba(37,99,235,0.08);
  --shadow-lg: 0 12px 32px rgba(124,58,237,0.12);
  --radius: 12px;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  color: var(--text-main);
  background-color: var(--bg-page);
  line-height: 1.6;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
.site-container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}
header.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
}
.header-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand-box {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-box .ai-page-logo {
  height: 40px;
  width: auto;
  display: block;
}
.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: #1e1b4b;
}
.nav-menu {
  display: flex;
  align-items: center;
}
.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0;
}
.nav-links li a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 0.95rem;
  font-weight: 500;
  color: #334155;
  transition: color 0.2s, background 0.2s;
  border-radius: 6px;
}
.nav-links li a:hover {
  color: var(--primary);
  background: #f1f5f9;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--primary-gradient);
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(37,99,235,0.25);
  transition: transform 0.2s, box-shadow 0.2s;
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(124,58,237,0.35);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #1e293b;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: 999px;
  transition: background 0.2s, border-color 0.2s;
}
.btn-secondary:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
}
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #334155;
}
.hero-section {
  position: relative;
  padding: 80px 0 60px;
  background: radial-gradient(100% 100% at 50% 0%, #ede9fe 0%, #f0fdf4 45%, #f8fafc 100%);
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid #ddd6fe;
  color: #6d28d9;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.hero-title {
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1.25;
  color: #0f172a;
  max-width: 900px;
  margin: 0 auto 20px;
  letter-spacing: -0.02em;
}
.hero-title span {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 36px;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 20px;
}
.metric-card {
  background: #ffffff;
  border: 1px solid #f1f5f9;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  text-align: left;
}
.metric-val {
  font-size: 2rem;
  font-weight: 800;
  color: #2563eb;
  line-height: 1;
  margin-bottom: 8px;
}
.metric-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: #334155;
  margin-bottom: 4px;
}
.metric-sub {
  font-size: 0.8rem;
  color: #64748b;
}
.section-block {
  padding: 80px 0;
}
.section-alt {
  background: #ffffff;
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: #2563eb;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.section-h2 {
  font-size: 2.1rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 12px;
}
.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.about-card {
  background: #f8fafc;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 32px;
}
.about-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #1e293b;
}
.about-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 20px;
}
.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: #475569;
}
.about-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2563eb;
  margin-top: 8px;
  flex-shrink: 0;
}
.model-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.model-tag {
  padding: 6px 14px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1d4ed8;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 999px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}
.feature-icon-badge {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: #eff6ff;
  color: #2563eb;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 0.9rem;
  color: #64748b;
  line-height: 1.6;
  flex-grow: 1;
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.step-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #eff6ff;
  color: #2563eb;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  border: 2px solid #bfdbfe;
}
.step-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-card p {
  font-size: 0.85rem;
  color: #64748b;
}
.media-gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}
.media-box {
  background: #f1f5f9;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-light);
}
.media-box img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}
.media-info {
  padding: 16px 20px;
  background: #ffffff;
}
.media-info h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 4px;
}
.media-info p {
  font-size: 0.85rem;
  color: #64748b;
}
.promo-banners-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.promo-banners-row .ai-page-image {
  border-radius: 8px;
  border: 1px solid var(--border-light);
  width: 100%;
  height: auto;
  display: block;
}
.eval-table-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 30px;
}
.eval-score-header {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
  color: #ffffff;
  padding: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.eval-score-header h3 {
  font-size: 1.5rem;
  font-weight: 800;
}
.score-badge-wrap {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.score-num {
  font-size: 3rem;
  font-weight: 900;
  color: #38bdf8;
}
.score-rating {
  font-size: 1.1rem;
  color: #fde047;
  font-weight: 700;
}
.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 20px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.95rem;
}
.custom-table th {
  background: #f8fafc;
  font-weight: 700;
  color: #1e293b;
}
.custom-table tr:last-child td {
  border-bottom: none;
}
.tag-highlight {
  color: #16a34a;
  font-weight: 700;
}
.token-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.token-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.token-card.popular {
  border: 2px solid #2563eb;
}
.token-popular-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: #2563eb;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 999px;
}
.token-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.token-price {
  font-size: 2.2rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 16px;
}
.token-price span {
  font-size: 0.9rem;
  font-weight: 500;
  color: #64748b;
}
.token-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.9rem;
  color: #475569;
}
.token-features li::before {
  content: "✔";
  color: #16a34a;
  margin-right: 8px;
  font-weight: 800;
}
.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 18px 24px;
  font-size: 1rem;
  font-weight: 700;
  color: #1e293b;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-icon {
  font-weight: 400;
  font-size: 1.2rem;
  transition: transform 0.2s;
  color: #64748b;
}
.faq-answer {
  display: none;
  padding: 0 24px 20px;
  font-size: 0.95rem;
  color: #475569;
  line-height: 1.6;
}
.faq-item.active .faq-answer {
  display: block;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.review-content {
  font-size: 0.95rem;
  color: #334155;
  line-height: 1.6;
  margin-bottom: 20px;
  position: relative;
}
.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid #f1f5f9;
  padding-top: 16px;
}
.review-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}
.review-meta h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #0f172a;
}
.review-meta p {
  font-size: 0.8rem;
  color: #64748b;
}
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: flex-start;
}
.form-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 6px;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 0.95rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  color: #1e293b;
  background: #ffffff;
  transition: border-color 0.2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: #2563eb;
}
.form-textarea {
  resize: vertical;
  min-height: 100px;
}
.contact-info-panel {
  background: #f8fafc;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.contact-meta-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-meta-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: #eff6ff;
  color: #2563eb;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}
.contact-meta-content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #1e293b;
}
.contact-meta-content p {
  font-size: 0.9rem;
  color: #64748b;
}
.qr-code-box {
  margin-top: 10px;
  text-align: center;
  padding: 20px;
  background: #ffffff;
  border-radius: 8px;
  border: 1px solid var(--border-light);
}
.qr-code-box img {
  width: 140px;
  height: 140px;
  display: block;
  margin: 0 auto 12px;
  border-radius: 4px;
}
.qr-code-box span {
  font-size: 0.85rem;
  font-weight: 600;
  color: #475569;
}
.network-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.network-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}
.network-item h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 6px;
}
.network-item p {
  font-size: 0.85rem;
  color: #64748b;
}
.news-article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.news-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: #2563eb;
  margin-bottom: 12px;
}
.news-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #0f172a;
}
.news-card p {
  font-size: 0.9rem;
  color: #64748b;
  margin-bottom: 16px;
  flex-grow: 1;
}
.news-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: #2563eb;
}
.encyclopedia-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.encyclopedia-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 24px;
}
.encyclopedia-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #1e293b;
}
.encyclopedia-card p {
  font-size: 0.9rem;
  color: #64748b;
  line-height: 1.6;
}
.agent-banner {
  background: linear-gradient(135deg, #1e1b4b 0%, #4338ca 100%);
  border-radius: var(--radius);
  padding: 48px;
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 30px;
}
.agent-info h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.agent-info p {
  font-size: 1rem;
  color: #cbd5e1;
  max-width: 650px;
}
.footer-section {
  background: #0f172a;
  color: #94a3b8;
  padding: 60px 0 30px;
  border-top: 1px solid #1e293b;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand h4 {
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 16px;
}
.footer-col h5 {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links li a {
  font-size: 0.9rem;
  color: #94a3b8;
  transition: color 0.2s;
}
.footer-links li a:hover {
  color: #ffffff;
}
.friend-links-box {
  border-top: 1px solid #1e293b;
  padding: 24px 0;
  margin-bottom: 24px;
}
.friend-links-box h6 {
  color: #cbd5e1;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.friend-links-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.friend-links-wrap a {
  color: #64748b;
  font-size: 0.85rem;
  transition: color 0.2s;
}
.friend-links-wrap a:hover {
  color: #38bdf8;
}
.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #64748b;
  flex-wrap: wrap;
  gap: 12px;
}
.floating-actions {
  position: fixed;
  bottom: 30px;
  right: 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 999;
}
.float-btn {
  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: #2563eb;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s;
}
.float-btn:hover {
  transform: scale(1.08);
  background: #eff6ff;
}
@media (max-width: 992px) {
  .hero-metrics { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .promo-banners-row { grid-template-columns: repeat(2, 1fr); }
  .token-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .network-grid { grid-template-columns: repeat(2, 1fr); }
  .news-article-grid { grid-template-columns: 1fr; }
  .encyclopedia-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid var(--border-light);
    padding: 20px;
    box-shadow: var(--shadow-md);
  }
  .nav-menu.active {
    display: block;
  }
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav-links li {
    width: 100%;
  }
  .nav-links li a {
    width: 100%;
    padding: 10px 0;
  }
  .menu-toggle {
    display: flex;
  }
}
@media (max-width: 640px) {
  .hero-title { font-size: 2rem; }
  .hero-metrics { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .media-gallery-grid { grid-template-columns: 1fr; }
  .promo-banners-row { grid-template-columns: 1fr; }
  .network-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
}