:root {
  --primary: #059669;
  --primary-light: #10b981;
  --primary-bright: #00dc82;
  --primary-bg: #ecfdf5;
  --dark: #064e3b;
  --text-main: #0f172a;
  --text-sub: #334155;
  --text-muted: #64748b;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --border-green: #a7f3d0;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px -5px rgba(5, 150, 105, 0.12), 0 8px 10px -6px rgba(5, 150, 105, 0.08);
  --radius: 12px;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text-main);
  background-color: var(--bg-page);
}
body {
  line-height: 1.6;
  overflow-x: hidden;
}
.site-container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-green);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand-area {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.5px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  color: var(--text-sub);
  font-weight: 600;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 6px;
  transition: all 0.2s ease;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: var(--primary-bg);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.25s ease;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
}
.btn-outline {
  border-color: var(--primary);
  color: var(--primary);
  background: #ffffff;
}
.btn-outline:hover {
  background: var(--primary-bg);
}
.hero-section {
  padding: 80px 0 60px;
  background: radial-gradient(circle at 50% 0%, #d1fae5 0%, #f8fafc 70%);
  text-align: center;
  position: relative;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: #ffffff;
  border: 1px solid var(--border-green);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.hero-title {
  font-size: 40px;
  line-height: 1.25;
  font-weight: 900;
  color: var(--dark);
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero-desc {
  font-size: 18px;
  color: var(--text-sub);
  max-width: 820px;
  margin: 0 auto 36px;
}
.hero-cta {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 20px;
}
.stat-card {
  background: #ffffff;
  border: 1px solid var(--border-green);
  border-radius: var(--radius);
  padding: 24px 16px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s;
}
.stat-card:hover {
  transform: translateY(-4px);
}
.stat-value {
  font-size: 32px;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 4px;
}
.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 600;
}
.section-block {
  padding: 70px 0;
}
.section-block.bg-light {
  background-color: #f1f5f9;
}
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
  border: 1px solid var(--border-green);
}
.section-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}
.section-subtitle {
  font-size: 15px;
  color: var(--text-sub);
}
.platform-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 30px;
}
.feature-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-box {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}
.feature-box:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.feature-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 900;
  margin-bottom: 16px;
  border: 1px solid var(--border-green);
}
.feature-box h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}
.feature-box p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
}
.model-tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 24px;
}
.model-tag {
  background: #ffffff;
  border: 1px solid var(--border-green);
  color: var(--dark);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
}
.model-tag:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}
.workflow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}
.step-item {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
}
.step-num {
  font-size: 28px;
  font-weight: 900;
  color: var(--primary-light);
  margin-bottom: 8px;
}
.step-item h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}
.step-item p {
  font-size: 13px;
  color: var(--text-muted);
}
.media-gallery-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  align-items: center;
  margin-top: 30px;
}
.media-container {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-green);
  box-shadow: var(--shadow-md);
  background: #ffffff;
}
.media-container img {
  width: 100%;
  height: auto;
  display: block;
}
.eval-card {
  background: #ffffff;
  border: 2px solid var(--primary-light);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 30px;
}
.eval-score-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 20px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}
.eval-score-box {
  display: flex;
  align-items: center;
  gap: 16px;
}
.score-badge {
  font-size: 36px;
  font-weight: 900;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 8px 18px;
  border-radius: 12px;
  border: 1px solid var(--border-green);
}
.eval-table-wrapper {
  overflow-x: auto;
}
.eval-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.eval-table th,
.eval-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.eval-table th {
  background: var(--primary-bg);
  color: var(--dark);
  font-weight: 700;
}
.eval-table tr:last-child td {
  border-bottom: none;
}
.eval-highlight {
  color: var(--primary);
  font-weight: 700;
}
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.review-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.review-content {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 16px;
  font-style: italic;
}
.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid #f1f5f9;
  padding-top: 12px;
}
.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
}
.author-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--dark);
}
.author-role {
  font-size: 12px;
  color: var(--text-muted);
}
.faq-accordion {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.2s;
}
.faq-item.active {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  padding: 18px 24px;
  font-weight: 700;
  font-size: 15px;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
.faq-question::after {
  content: "+";
  font-size: 20px;
  color: var(--primary);
  font-weight: 400;
  transition: transform 0.2s;
}
.faq-item.active .faq-question::after {
  content: "-";
  transform: rotate(180deg);
}
.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  font-size: 14px;
  color: var(--text-sub);
  background: #fafafa;
}
.faq-item.active .faq-answer {
  padding: 16px 24px 20px;
  max-height: 250px;
  border-top: 1px solid #f1f5f9;
}
.form-card {
  background: #ffffff;
  border: 1px solid var(--border-green);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-md);
  max-width: 760px;
  margin: 0 auto;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
  background: #ffffff;
}
.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 30px;
}
.contact-info-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.info-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--text-sub);
}
.info-row strong {
  color: var(--dark);
}
.qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  border: 1px dashed var(--border-green);
  border-radius: 8px;
  background: var(--primary-bg);
  max-width: 180px;
  margin-top: 10px;
}
.qr-container img {
  width: 130px;
  height: 130px;
  object-fit: cover;
  border-radius: 6px;
}
.qr-text {
  font-size: 12px;
  font-weight: 700;
  color: var(--dark);
  margin-top: 6px;
}
.article-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.article-item a {
  display: block;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-decoration: none;
  color: var(--text-main);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s;
}
.article-item a:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateX(4px);
}
.site-footer {
  background: #022c22;
  color: #a7f3d0;
  padding: 60px 0 30px;
  border-top: 4px solid var(--primary-light);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}
.footer-col h4 {
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col a {
  color: #d1fae5;
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s;
}
.footer-col a:hover {
  color: #ffffff;
}
.footer-bottom {
  border-top: 1px solid #064e3b;
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: #6ee7b7;
}
.links-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
  justify-content: center;
}
.links-bar a {
  color: #a7f3d0;
  text-decoration: none;
  font-size: 13px;
}
.links-bar a:hover {
  color: #ffffff;
}
.floating-widget {
  position: fixed;
  bottom: 30px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.float-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  cursor: pointer;
  text-decoration: none;
  font-size: 14px;
  font-weight: 800;
  border: 2px solid #ffffff;
  transition: all 0.2s;
}
.float-btn:hover {
  transform: scale(1.1);
  background: var(--primary-light);
}
@media (max-width: 992px) {
  .hero-stats-grid,
  .workflow-steps,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-grid-3,
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .media-gallery-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 12px 0;
  }
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 26px;
  }
  .hero-stats-grid,
  .workflow-steps,
  .footer-grid,
  .article-list {
    grid-template-columns: 1fr;
  }
  .form-card {
    padding: 20px;
  }
}