:root {
  --primary: #e60067;
  --primary-hover: #c40057;
  --primary-light: #fff0f5;
  --primary-subtle: #fde2ec;
  --accent: #ff4081;
  --text-main: #1f2937;
  --text-muted: #64748b;
  --bg-main: #fdfbfb;
  --card-bg: #ffffff;
  --border-color: #fce7f3;
  --border-hover: #f472b6;
  --shadow-sm: 0 4px 6px -1px rgba(230, 0, 103, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 15px -3px rgba(230, 0, 103, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(230, 0, 103, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --radius: 12px;
  --max-w: 1240px;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  background-image: radial-gradient(var(--primary-subtle) 1px, transparent 1px);
  background-size: 28px 28px;
}
a {
  text-decoration: none;
  color: inherit;
  transition: all 0.25s ease;
}
ul, ol {
  list-style: none;
}
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo-box {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary);
}
.ai-page-logo {
  height: 38px;
  width: auto;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
}
.nav-link {
  padding: 8px 14px;
  font-size: 0.95rem;
  font-weight: 500;
  color: #334155;
  border-radius: 6px;
}
.nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, #ff1493 0%, var(--primary) 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(230, 0, 103, 0.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(230, 0, 103, 0.4);
}
.btn-outline {
  background: #ffffff;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary-light);
}
.btn-sm {
  padding: 6px 14px;
  font-size: 0.875rem;
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary);
  cursor: pointer;
}
.hero-section {
  padding: 64px 0 56px;
  position: relative;
  overflow: hidden;
}
.hero-inner {
  text-align: center;
  max-width: 920px;
  margin: 0 auto;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: var(--primary-light);
  border: 1px solid var(--border-color);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 9999px;
  margin-bottom: 20px;
}
.hero-title {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.25;
  color: #0f172a;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-title span {
  color: var(--primary);
  background: linear-gradient(135deg, #ff007f 0%, #db2777 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 1.15rem;
  color: #475569;
  line-height: 1.7;
  margin-bottom: 32px;
}
.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.metric-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 20px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform 0.25s ease;
}
.metric-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
}
.metric-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}
.metric-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}
.section {
  padding: 64px 0;
  border-bottom: 1px dashed var(--border-color);
}
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}
.section-tag {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 12px;
}
.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
}
.models-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 24px;
}
.model-badge {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #334155;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}
.model-badge:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateY(-2px);
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}
.card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 10px;
}
.card-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex-grow: 1;
}
.steps-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.step-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 24px 20px;
  border-radius: var(--radius);
  position: relative;
}
.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 14px;
}
.step-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
}
.media-container {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}
.media-container img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}
.case-card {
  background: #ffffff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.case-body {
  padding: 20px;
}
.case-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.case-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
}
.table-wrapper {
  overflow-x: auto;
  background: #ffffff;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}
.custom-table th {
  background: var(--primary-light);
  color: #0f172a;
  font-weight: 700;
  padding: 16px 20px;
  border-bottom: 2px solid var(--border-color);
}
.custom-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  color: #334155;
}
.custom-table tr:hover td {
  background: #fff8fa;
}
.tag-highlight {
  display: inline-block;
  padding: 4px 10px;
  background: #fdf2f8;
  color: var(--primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 0.825rem;
  font-weight: 600;
}
.score-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff1f2;
  color: var(--primary);
  border: 1px solid var(--border-hover);
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 24px;
}
.form-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.form-group {
  margin-bottom: 20px;
}
.form-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 16px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 0.95rem;
  color: #0f172a;
  background: #f8fafc;
  transition: all 0.25s ease;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 3px var(--primary-subtle);
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.25s ease;
}
.faq-item.active {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  padding: 18px 24px;
  font-weight: 700;
  font-size: 1rem;
  color: #0f172a;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #ffffff;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-toggle-icon {
  font-size: 1.25rem;
  color: var(--primary);
  transition: transform 0.25s ease;
}
.faq-item.active .faq-toggle-icon {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 24px 18px;
  font-size: 0.925rem;
  color: #475569;
  line-height: 1.7;
  display: none;
}
.faq-item.active .faq-answer {
  display: block;
}
.review-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.review-quote {
  font-size: 0.95rem;
  color: #334155;
  margin-bottom: 16px;
  line-height: 1.6;
}
.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}
.review-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
.review-meta h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #0f172a;
}
.review-meta p {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.articles-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.article-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 16px 20px;
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.25s ease;
}
.article-item:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}
.article-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #1e293b;
}
.article-link {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
}
.footer {
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: 56px 0 24px;
  color: #334155;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-info p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 12px;
  line-height: 1.6;
}
.footer-links-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 16px;
}
.footer-links-col ul li {
  margin-bottom: 10px;
}
.footer-links-col a {
  font-size: 0.9rem;
  color: #64748b;
}
.footer-links-col a:hover {
  color: var(--primary);
}
.qr-code-box {
  text-align: center;
  width: 120px;
}
.qr-code-box img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}
.qr-code-box span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: #94a3b8;
}
.floating-widget {
  position: fixed;
  right: 20px;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 999;
}
.widget-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: all 0.25s ease;
  font-size: 1.25rem;
}
.widget-btn:hover {
  background: var(--primary);
  color: #ffffff;
  transform: translateY(-2px);
}
@media (max-width: 992px) {
  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3, .grid-4, .steps-container {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .articles-list {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  .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.active {
    display: flex;
  }
  .hero-title {
    font-size: 1.85rem;
  }
  .grid-3, .grid-4, .steps-container, .hero-metrics {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}