:root {
  --primary: #7928ca;
  --primary-dark: #581c87;
  --primary-light: #9333ea;
  --accent: #d946ef;
  --accent-cyan: #06b6d4;
  --bg-page: #fbf9ff;
  --bg-card: #ffffff;
  --bg-alt: #f5effe;
  --text-main: #1f1b2e;
  --text-muted: #645e7a;
  --border-color: #e9defa;
  --border-hover: #c4b5fd;
  --shadow-sm: 0 4px 12px rgba(121, 40, 202, 0.05);
  --shadow-md: 0 10px 25px rgba(121, 40, 202, 0.1);
  --shadow-lg: 0 18px 40px rgba(121, 40, 202, 0.15);
  --radius: 12px;
  --transition: all 0.28s ease;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
}
body {
  overflow-x: hidden;
  background: radial-gradient(circle at 10% 20%, rgba(217, 70, 239, 0.04) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(121, 40, 202, 0.05) 0%, transparent 40%),
              var(--bg-page);
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
ul {
  list-style: none;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand-box {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo-wrap {
  display: flex;
  align-items: center;
  max-width: 160px;
}
.ai-page-logo {
  display: block;
  max-height: 40px;
  width: auto;
  object-fit: contain;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
}
.nav-item {
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  border-radius: 6px;
}
.nav-item:hover {
  color: var(--primary);
  background: rgba(121, 40, 202, 0.06);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-align: center;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(121, 40, 202, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(121, 40, 202, 0.4);
  color: #ffffff;
}
.btn-outline {
  background: #ffffff;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #ffffff;
}
.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
}
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}
.hero-section {
  position: relative;
  padding: 90px 0 70px;
  overflow: hidden;
  text-align: center;
  background: linear-gradient(180deg, rgba(233, 222, 250, 0.45) 0%, rgba(251, 249, 255, 0.9) 100%);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 30px;
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.hero-badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
}
.hero-title {
  font-size: 40px;
  line-height: 1.25;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.hero-title span {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  max-width: 820px;
  margin: 0 auto 36px;
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.7;
}
.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.hero-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1040px;
  margin: 0 auto;
}
.hero-f-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 22px 18px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  text-align: left;
  transition: var(--transition);
}
.hero-f-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}
.hero-f-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, rgba(121, 40, 202, 0.12), rgba(217, 70, 239, 0.15));
  color: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 12px;
}
.hero-f-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}
.hero-f-text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}
.section {
  padding: 75px 0;
  position: relative;
}
.section-alt {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}
.sec-header {
  text-align: center;
  max-width: 740px;
  margin: 0 auto 50px;
}
.sec-sub {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  letter-spacing: 1.5px;
  margin-bottom: 8px;
  display: inline-block;
}
.sec-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
}
.sec-desc {
  font-size: 15px;
  color: var(--text-muted);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 10px;
}
.stat-item {
  background: #ffffff;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.stat-val {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
  font-feature-settings: "tnum";
}
.stat-label {
  font-size: 14px;
  color: var(--text-muted);
}
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.about-text h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}
.about-text p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 20px;
  line-height: 1.7;
}
.about-points {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}
.point-card {
  background: #ffffff;
  padding: 16px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}
.point-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}
.point-desc {
  font-size: 13px;
  color: var(--text-muted);
}
.about-visual {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  background: #ffffff;
}
.about-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.feature-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
}
.feature-icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, rgba(121, 40, 202, 0.1), rgba(217, 70, 239, 0.15));
  color: var(--primary);
  border-radius: 10px;
  font-size: 20px;
  font-weight: bold;
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  flex-grow: 1;
}
.model-tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  max-width: 1000px;
  margin: 30px auto 0;
}
.model-tag {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.model-tag:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: scale(1.05);
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.gallery-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.gallery-img-box {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #f0eaf8;
}
.gallery-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.gallery-item:hover .gallery-img-box img {
  transform: scale(1.03);
}
.gallery-info {
  padding: 20px;
}
.gallery-info h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}
.gallery-info p {
  font-size: 13px;
  color: var(--text-muted);
}
.step-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}
.step-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.step-number {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 16px;
}
.step-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-card p {
  font-size: 13px;
  color: var(--text-muted);
}
.rating-banner {
  background: linear-gradient(135deg, #2d124d 0%, #4a197e 100%);
  color: #ffffff;
  padding: 36px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 30px;
  box-shadow: var(--shadow-md);
}
.rating-main {
  display: flex;
  align-items: center;
  gap: 24px;
}
.rating-score {
  font-size: 48px;
  font-weight: 900;
  color: #facc15;
  line-height: 1;
}
.rating-info h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}
.rating-info p {
  font-size: 14px;
  color: #e9defa;
}
.table-responsive {
  width: 100%;
  overflow-x: auto;
  background: #ffffff;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.eval-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 680px;
}
.eval-table th, .eval-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}
.eval-table th {
  background: #fcfaff;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}
.eval-table tr:last-child td {
  border-bottom: none;
}
.eval-table .highlight {
  background: rgba(121, 40, 202, 0.03);
  font-weight: 600;
  color: var(--primary);
}
.token-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.token-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 30px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.token-card.popular {
  border-color: var(--primary);
  box-shadow: 0 8px 30px rgba(121, 40, 202, 0.18);
  position: relative;
}
.popular-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 14px;
  border-radius: 20px;
}
.token-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}
.token-price {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  margin: 16px 0 20px;
}
.token-price span {
  font-size: 13px;
  font-weight: normal;
  color: var(--text-muted);
}
.token-list {
  text-align: left;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-grow: 1;
}
.token-list li {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.token-list li::before {
  content: "✓";
  color: var(--primary);
  font-weight: bold;
}
.comment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.comment-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.comment-author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
}
.author-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}
.author-role {
  font-size: 12px;
  color: var(--text-muted);
}
.comment-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-q {
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
.faq-q:hover {
  background-color: #faf7fd;
}
.faq-icon {
  font-size: 18px;
  color: var(--primary);
  transition: var(--transition);
}
.faq-a {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0, 1, 0, 1);
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}
.faq-item.active .faq-a {
  padding: 0 24px 20px 24px;
  max-height: 500px;
  transition: all 0.3s cubic-bezier(1, 0, 1, 0);
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}
.contact-info-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.contact-info-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 18px;
}
.contact-list li {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.contact-list strong {
  color: var(--text-main);
}
.contact-qr {
  margin-top: 24px;
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--bg-alt);
  padding: 16px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}
.contact-qr img {
  width: 90px;
  height: 90px;
  border-radius: 6px;
  object-fit: cover;
}
.qr-text h4 {
  font-size: 15px;
  margin-bottom: 4px;
}
.qr-text p {
  font-size: 12px;
  color: var(--text-muted);
}
.form-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-main);
}
.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
}
.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(121, 40, 202, 0.1);
}
textarea.form-control {
  resize: vertical;
  min-height: 90px;
}
.article-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.article-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.article-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
}
.article-date {
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 8px;
}
.article-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}
.article-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}
.site-footer {
  background-color: #1a1424;
  color: #c9c3d4;
  padding: 60px 0 24px;
  border-top: 1px solid #322845;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 36px;
  margin-bottom: 40px;
}
.footer-about h3 {
  color: #ffffff;
  font-size: 18px;
  margin-bottom: 14px;
}
.footer-about p {
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 16px;
}
.footer-col h4 {
  color: #ffffff;
  font-size: 15px;
  margin-bottom: 14px;
  font-weight: 700;
}
.footer-col ul li {
  margin-bottom: 8px;
}
.footer-col ul a {
  font-size: 13px;
  color: #a79eb8;
}
.footer-col ul a:hover {
  color: #ffffff;
}
.footer-bottom {
  border-top: 1px solid #2e2440;
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: #8b819f;
}
.footer-links-inline {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}
.footer-links-inline a {
  color: #a79eb8;
}
.footer-links-inline a:hover {
  color: #ffffff;
}
.float-panel {
  position: fixed;
  right: 20px;
  bottom: 30px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 999;
}
.float-btn {
  width: 46px;
  height: 46px;
  background: #ffffff;
  color: var(--primary);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: var(--transition);
  font-size: 13px;
  font-weight: 700;
}
.float-btn:hover {
  background: var(--primary);
  color: #ffffff;
  transform: scale(1.08);
}
@media (max-width: 992px) {
  .hero-features {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .card-grid-3, .card-grid-4, .comment-grid, .token-grid, .article-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid, .contact-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
  .step-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #ffffff;
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
  }
  .nav-links.show {
    display: flex;
  }
  .nav-item {
    width: 100%;
    padding: 10px;
  }
  .menu-toggle {
    display: flex;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-desc {
    font-size: 15px;
  }
  .sec-title {
    font-size: 24px;
  }
  .hero-features, .stats-grid, .card-grid-3, .card-grid-4, .gallery-grid, .step-grid, .token-grid, .comment-grid, .article-list {
    grid-template-columns: 1fr;
  }
  .rating-banner {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }
  .rating-main {
    flex-direction: column;
    gap: 10px;
  }
  .about-points {
    grid-template-columns: 1fr;
  }
}