:root {
  --primary: #0284c7;
  --primary-dark: #0369a1;
  --primary-light: #e0f2fe;
  --accent: #f97316;
  --accent-light: #ffedd5;
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #64748b;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;
  --border: #e2e8f0;
  --border-focus: #38bdf8;
  --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 -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --radius: 12px;
  --container-max: 1200px;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
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;
  overflow-x: hidden;
  background: radial-gradient(circle at 10% 20%, rgba(224, 242, 254, 0.5) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(254, 243, 199, 0.4) 0%, transparent 40%),
              #f8fafc;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: all 0.2s ease;
}
a:hover {
  color: var(--primary-dark);
}
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand-group {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-box {
  display: flex;
  align-items: center;
  height: 40px;
}
.logo-box img {
  max-height: 40px;
  width: auto;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}
.nav-links li a {
  display: block;
  padding: 8px 12px;
  color: var(--text-main);
  font-weight: 500;
  font-size: 14px;
}
.nav-links li a:hover {
  color: var(--primary);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}
.btn-primary:hover {
  background-color: var(--primary-dark);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}
.btn-accent {
  background-color: var(--accent);
  color: #ffffff;
}
.btn-accent:hover {
  background-color: #ea580c;
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}
.btn-outline {
  border-color: var(--primary);
  color: var(--primary);
  background-color: transparent;
}
.btn-outline:hover {
  background-color: var(--primary-light);
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 18px;
  cursor: pointer;
}
.section {
  padding: 80px 0;
  position: relative;
}
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px auto;
}
.section-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-desc {
  font-size: 16px;
  color: var(--text-muted);
}
.hero-section {
  padding: 70px 0 80px 0;
  background: linear-gradient(180deg, #f0f9ff 0%, #ffffff 100%);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.hero-content {
  max-width: 860px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1px solid #bae6fd;
  padding: 6px 16px;
  border-radius: 30px;
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.hero-title {
  font-size: 40px;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}
.stat-card {
  background: #ffffff;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.stat-val {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}
.stat-lbl {
  font-size: 13px;
  color: var(--text-muted);
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-focus);
}
.feature-icon-box {
  width: 44px;
  height: 44px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
  font-weight: bold;
}
.feature-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-main);
}
.feature-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  flex-grow: 1;
}
.model-tags-box {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  background: #ffffff;
  padding: 30px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.model-tag {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}
.model-tag:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-color: #7dd3fc;
}
.step-grid {
  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 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #ffffff;
  border-radius: 50%;
  font-weight: 700;
  margin-bottom: 14px;
}
.step-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.step-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}
.table-responsive {
  width: 100%;
  overflow-x: auto;
  background: #ffffff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 650px;
}
.custom-table th, .custom-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.custom-table th {
  background: #f8fafc;
  font-weight: 600;
  color: var(--text-main);
}
.custom-table tr:last-child td {
  border-bottom: none;
}
.custom-table tr:hover td {
  background: #f0fdf4;
}
.rating-banner {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  padding: 24px 30px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 16px;
}
.rating-info {
  display: flex;
  align-items: center;
  gap: 20px;
}
.rating-num {
  font-size: 38px;
  font-weight: 800;
  line-height: 1;
  color: #fef08a;
}
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.media-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.media-card .img-wrap {
  width: 100%;
  overflow: hidden;
  background: #e2e8f0;
}
.media-card img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s ease;
}
.media-card:hover img {
  transform: scale(1.03);
}
.media-body {
  padding: 20px;
}
.media-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-main);
}
.media-desc {
  font-size: 14px;
  color: var(--text-muted);
}
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 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-text {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  font-style: italic;
}
.reviewer-info {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.reviewer-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.reviewer-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}
.reviewer-role {
  font-size: 12px;
  color: var(--text-light);
}
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  background: none;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.faq-question:hover {
  background: var(--bg-subtle);
}
.faq-icon {
  font-size: 18px;
  color: var(--primary);
  transition: transform 0.25s ease;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease;
  padding: 0 20px;
  background: #fafafa;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}
.faq-item.active .faq-answer {
  max-height: 200px;
  padding: 12px 20px 20px 20px;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}
.form-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-md);
  max-width: 760px;
  margin: 0 auto;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group.full {
  grid-column: 1 / -1;
}
.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}
.form-control {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-main);
  background: #ffffff;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}
textarea.form-control {
  min-height: 100px;
  resize: vertical;
}
.contact-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-sm);
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}
.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-text h4 {
  font-size: 15px;
  margin-bottom: 4px;
}
.contact-text p {
  font-size: 14px;
  color: var(--text-muted);
}
.qr-box {
  text-align: center;
  padding: 20px;
  background: var(--bg-subtle);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.qr-box img {
  width: 140px;
  height: 140px;
  border-radius: 8px;
  background: #ffffff;
  padding: 6px;
  border: 1px solid var(--border);
  margin-bottom: 10px;
}
.qr-box span {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}
.links-section {
  padding: 40px 0;
  background: #f1f5f9;
  border-top: 1px solid var(--border);
}
.links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.link-group-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}
.link-items-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.link-items-flow a {
  font-size: 13px;
  color: var(--text-muted);
  background: #ffffff;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.link-items-flow a:hover {
  color: var(--primary);
  border-color: var(--primary);
}
footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 40px 0 30px 0;
  font-size: 14px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid #1e293b;
}
.footer-brand {
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
}
.footer-nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-nav a {
  color: #94a3b8;
  font-size: 13px;
}
.footer-nav a:hover {
  color: #ffffff;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
}
.float-panel {
  position: fixed;
  right: 20px;
  bottom: 30px;
  z-index: 99;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.float-btn {
  width: 48px;
  height: 48px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  color: var(--primary);
  font-size: 20px;
  transition: all 0.2s;
  text-decoration: none;
}
.float-btn:hover {
  background: var(--primary);
  color: #ffffff;
  transform: scale(1.08);
}
@media (max-width: 992px) {
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .step-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-split {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    padding: 20px;
    flex-direction: column;
    align-items: flex-start;
    box-shadow: var(--shadow-md);
  }
  .nav-menu.show {
    display: flex;
  }
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
  }
  .nav-links li {
    width: 100%;
  }
  .nav-links li a {
    padding: 10px 0;
    border-bottom: 1px solid var(--bg-subtle);
  }
  .nav-toggle {
    display: block;
  }
  .hero-title {
    font-size: 28px;
  }
  .section-title {
    font-size: 24px;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .links-grid {
    grid-template-columns: 1fr;
  }
  .step-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    grid-template-columns: 1fr;
  }
}