:root {
  --primary-color: #10b981;
  --primary-light: #ecfdf5;
  --primary-dark: #047857;
  --accent-mint: #34d399;
  --accent-mint-soft: #a7f3d0;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --border-mint: #d1fae5;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(16, 185, 129, 0.1), 0 4px 6px -4px rgba(0,0,0,0.05);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  color: var(--text-main);
  background-color: var(--bg-page);
}
body {
  line-height: 1.6;
  background: radial-gradient(circle at 10% 20%, rgba(209, 250, 229, 0.4) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(236, 253, 245, 0.6) 0%, transparent 40%),
              var(--bg-page);
  min-height: 100vh;
}
.site-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.header-wrapper {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-mint);
}
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand-area {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.ai-page-logo {
  height: 40px;
  width: auto;
  display: block;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}
.nav-links a {
  display: block;
  padding: 8px 14px;
  color: var(--text-main);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-dark);
  background-color: var(--primary-light);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background-color: var(--primary-color);
  color: #ffffff;
  box-shadow: 0 2px 4px rgba(16, 185, 129, 0.3);
}
.btn-primary:hover {
  background-color: var(--primary-dark);
  box-shadow: 0 4px 8px rgba(16, 185, 129, 0.4);
  transform: translateY(-1px);
}
.btn-outline {
  background-color: #ffffff;
  border-color: var(--primary-color);
  color: var(--primary-dark);
}
.btn-outline:hover {
  background-color: var(--primary-light);
}
.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-color);
  padding: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-main);
  margin: 4px 0;
  transition: 0.3s;
}

.hero-section {
  padding: 60px 0 50px 0;
  position: relative;
}
.hero-content {
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--primary-light);
  border: 1px solid var(--border-mint);
  color: var(--primary-dark);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero-title {
  font-size: 40px;
  line-height: 1.25;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.hero-subtitle {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}
.hero-btn-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero-btn-main {
  font-size: 16px;
  padding: 14px 32px;
  border-radius: 30px;
}
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: #ffffff;
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-mint);
  box-shadow: var(--shadow-sm);
}
.metric-item {
  text-align: center;
  border-right: 1px dashed var(--border-color);
}
.metric-item:last-child {
  border-right: none;
}
.metric-value {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 4px;
}
.metric-label {
  font-size: 13px;
  color: var(--text-muted);
}

.section-block {
  padding: 60px 0;
}
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 40px auto;
}
.section-tag {
  color: var(--primary-color);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
  display: block;
}
.section-title {
  font-size: 28px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 12px;
}
.section-desc {
  font-size: 15px;
  color: var(--text-muted);
}

.model-tags-container {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-mint);
  padding: 24px;
  margin-bottom: 40px;
}
.model-tags-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.model-tag-pill {
  background: var(--primary-light);
  border: 1px solid var(--border-mint);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  transition: all 0.2s;
}
.model-tag-pill:hover {
  background: var(--primary-color);
  color: #ffffff;
  transform: translateY(-2px);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cards-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-md);
  padding: 24px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  border-color: var(--accent-mint);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.card-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #0f172a;
}
.feature-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  flex-grow: 1;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}
.step-card {
  background: #ffffff;
  border: 1px solid var(--border-mint);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
}
.step-num {
  font-size: 28px;
  font-weight: 900;
  color: var(--accent-mint-soft);
  line-height: 1;
  margin-bottom: 12px;
}
.step-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-card p {
  font-size: 13px;
  color: var(--text-muted);
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-mint);
  box-shadow: var(--shadow-sm);
}
.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}
.custom-table th,
.custom-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}
.custom-table th {
  background-color: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 700;
}
.custom-table tr:last-child td {
  border-bottom: none;
}
.custom-table tr:hover td {
  background-color: #fafbfc;
}
.badge-highlight {
  background: #dcfce7;
  color: #15803d;
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 12px;
}
.badge-muted {
  background: #f1f5f9;
  color: #64748b;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
}

.rating-banner {
  background: linear-gradient(135deg, #ecfdf5 0%, #f0fdf4 100%);
  border: 1px solid var(--border-mint);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 30px;
}
.rating-info h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 6px;
}
.rating-score-box {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.score-big {
  font-size: 42px;
  font-weight: 900;
  color: var(--primary-dark);
  line-height: 1;
}
.score-total {
  font-size: 16px;
  color: var(--text-muted);
}
.star-rating {
  color: #f59e0b;
  font-size: 18px;
  margin-top: 4px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  align-items: stretch;
}
.media-box {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 12px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.media-box img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
}
.media-box h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}
.media-box p {
  font-size: 13px;
  color: var(--text-muted);
}
.banner-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item.active {
  border-color: var(--primary-color);
}
.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  background: none;
  border: none;
  font-size: 15px;
  font-weight: 600;
  color: #0f172a;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.faq-icon {
  font-size: 18px;
  color: var(--primary-color);
  transition: transform 0.25s;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  background-color: #fafbfc;
  padding: 0 20px;
}
.faq-item.active .faq-answer {
  padding: 0 20px 18px 20px;
}
.faq-answer p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.testimonial-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.testimonial-text {
  font-size: 13px;
  color: var(--text-main);
  line-height: 1.6;
  margin-bottom: 16px;
  font-style: italic;
}
.user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
}
.avatar-badge {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}
.user-meta h4 {
  font-size: 13px;
  font-weight: 700;
}
.user-meta span {
  font-size: 12px;
  color: var(--text-muted);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: start;
}
.form-card {
  background: #ffffff;
  border: 1px solid var(--border-mint);
  border-radius: var(--radius-md);
  padding: 30px;
  box-shadow: var(--shadow-sm);
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #334155;
}
.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background-color: #ffffff;
  color: var(--text-main);
  outline: none;
  transition: border-color 0.2s;
}
.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}
textarea.form-control {
  resize: vertical;
  min-height: 90px;
}
.contact-info-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px;
}
.info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}
.info-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--primary-light);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.info-detail h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 2px;
}
.info-detail p, .info-detail a {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
}
.qr-container {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 10px;
  padding: 12px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
}
.qr-container img {
  width: 80px;
  height: 80px;
  border-radius: 4px;
}

.article-list {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.article-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: #f8fafc;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text-main);
  font-size: 14px;
  transition: all 0.2s;
}
.article-item:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
}

.agent-banner {
  background: linear-gradient(135deg, #047857 0%, #10b981 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-lg);
}
.agent-text h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
}
.agent-text p {
  font-size: 15px;
  opacity: 0.9;
  max-width: 600px;
}

.site-footer {
  background-color: #ffffff;
  border-top: 1px solid var(--border-mint);
  padding: 50px 0 20px 0;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}
.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 12px 0;
  max-width: 320px;
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--primary-color);
}
.friendly-links-wrap {
  border-top: 1px solid var(--border-color);
  padding: 20px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}
.friendly-links-wrap span {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
}
.friendly-links-wrap a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  margin-right: 8px;
  transition: color 0.2s;
}
.friendly-links-wrap a:hover {
  color: var(--primary-color);
}
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--text-light);
}

.floating-service {
  position: fixed;
  right: 20px;
  bottom: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.float-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--border-mint);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  text-decoration: none;
  cursor: pointer;
  position: relative;
  transition: transform 0.2s;
}
.float-btn:hover {
  transform: scale(1.08);
  background: var(--primary-light);
}
.float-qr-popup {
  position: absolute;
  right: 60px;
  bottom: 0;
  background: #ffffff;
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-mint);
  box-shadow: var(--shadow-lg);
  display: none;
  flex-direction: column;
  align-items: center;
  width: 140px;
}
.float-qr-popup img {
  width: 110px;
  height: 110px;
  margin-bottom: 6px;
}
.float-qr-popup span {
  font-size: 11px;
  color: var(--text-muted);
}
.float-btn:hover .float-qr-popup {
  display: flex;
}

@media (max-width: 1024px) {
  .cards-grid, .cards-grid-4, .process-steps, .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #ffffff;
    flex-direction: column;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-mint);
    display: none;
    box-shadow: var(--shadow-md);
  }
  .nav-links.active {
    display: flex;
  }
  .nav-links a {
    width: 100%;
    padding: 10px 0;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .metric-item:nth-child(2) {
    border-right: none;
  }
  .cards-grid, .cards-grid-4, .process-steps, .testimonials-grid, .contact-layout, .gallery-grid, .banner-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .rating-banner, .agent-banner {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }
}