:root {
  --bg: #0f172a;
  --bg-soft: #f8fafc;
  --bg-deep: #020617;
  --text: #0f172a;
  --text-light: #64748b;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --line: #e2e8f0;
  --white: #ffffff;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.logo-img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  object-fit: contain;
  display: block;
  padding: 2px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
}

.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  font-size: 14px;
}

.nav {
  display: flex;
  gap: 24px;
}

.nav a {
  color: var(--text-light);
  font-weight: 500;
}

.nav a.active,
.nav a:hover {
  color: var(--primary);
}

.hero {
  color: var(--white);
  background:
    radial-gradient(circle at 20% 20%, rgba(14, 165, 233, 0.4), transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(37, 99, 235, 0.35), transparent 40%),
    linear-gradient(145deg, var(--bg), #1e293b 70%);
  padding: 92px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 34px;
  align-items: center;
}

.tag {
  display: inline-block;
  padding: 6px 12px;
  margin: 0 0 14px;
  border-radius: 999px;
  font-size: 13px;
  color: #0c4a6e;
  background: #e0f2fe;
}

.hero .tag {
  color: #dbeafe;
  background: rgba(148, 163, 184, 0.24);
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.2;
}

.hero-desc {
  margin: 0 0 24px;
  color: #cbd5e1;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 10px;
  font-weight: 600;
}

.btn-primary {
  color: var(--white);
  background: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  color: #dbeafe;
  border: 1px solid rgba(203, 213, 225, 0.45);
}

.hero-card {
  padding: 22px 24px;
  border-radius: var(--radius);
  background: rgba(15, 23, 42, 0.44);
  border: 1px solid rgba(148, 163, 184, 0.28);
}

.hero-panel {
  display: grid;
  gap: 14px;
}

.hero-image-slot {
  min-height: 320px;
  border: 1px dashed rgba(148, 163, 184, 0.5);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(30, 41, 59, 0.55);
}

.hero-image-slot img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  display: block;
  object-fit: cover;
}

.hero-card h3 {
  margin-top: 0;
}

.hero-card ul {
  margin: 0;
  padding-left: 18px;
}

.section {
  padding: 72px 0;
}

.section-gray {
  background: var(--bg-soft);
}

.metrics {
  padding-top: 20px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metrics-grid article {
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 10px;
  background: #fff;
}

.metrics-grid h3 {
  margin: 0;
  font-size: 28px;
  color: var(--primary);
}

.metrics-grid p {
  margin: 4px 0 0;
  color: var(--text-light);
  font-size: 14px;
}

.section-head {
  margin-bottom: 26px;
}

.section-head h2 {
  margin: 0 0 6px;
  font-size: 30px;
}

.section-head p {
  margin: 0;
  color: var(--text-light);
}

.about-grid,
.feature-grid,
.gallery-grid,
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card,
.feature-item,
.product-card,
.contact-box {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.card h3,
.feature-item h4 {
  margin-top: 0;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.process-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

.process-item span {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  color: #fff;
  background: var(--primary);
  font-weight: 700;
}

.process-item h4 {
  margin: 10px 0 6px;
}

.process-item p {
  margin: 0;
  color: var(--text-light);
}

.sub-hero {
  padding: 72px 0 42px;
  background:
    radial-gradient(circle at 10% 20%, rgba(14, 165, 233, 0.18), transparent 26%),
    linear-gradient(180deg, #f8fafc, #ffffff);
}

.sub-hero h1 {
  font-size: clamp(28px, 3.2vw, 42px);
  margin-bottom: 10px;
}

.sub-hero p {
  margin: 0;
  color: var(--text-light);
}

.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.filter-bar.vertical {
  flex-direction: column;
}

.chip {
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--text-light);
  border-radius: 999px;
  min-height: 36px;
  padding: 0 14px;
}

.chip.active {
  color: var(--white);
  border-color: var(--primary);
  background: var(--primary);
}

.text-link {
  color: var(--primary);
  font-weight: 600;
}

.text-link:hover {
  text-decoration: underline;
}

.row-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-end;
}

.product-card .category {
  display: inline-block;
  font-size: 12px;
  color: var(--primary);
  background: #e0e7ff;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.product-card h3 {
  margin: 4px 0 8px;
}

.product-card p {
  margin: 0;
  color: var(--text-light);
}

.product-image {
  margin: -22px -22px 14px;
  border-bottom: 1px solid var(--line);
}

.product-image img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}

.product-image-placeholder {
  height: 180px;
  display: grid;
  place-items: center;
  color: #475569;
  font-size: 14px;
  background:
    linear-gradient(135deg, #e2e8f0 25%, #f8fafc 25%, #f8fafc 50%, #e2e8f0 50%, #e2e8f0 75%, #f8fafc 75%);
  background-size: 24px 24px;
}

.image-slot {
  margin: 0;
}

.slot-box {
  height: 220px;
  border: 1px dashed #94a3b8;
  border-radius: var(--radius);
  overflow: hidden;
  background: #f8fafc;
}

.slot-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-slot p {
  margin: 8px 2px 0;
  color: var(--text-light);
  font-size: 13px;
}

.large-gallery .slot-box {
  height: 250px;
}

.product-layout {
  display: grid;
  grid-template-columns: 270px 1fr;
  gap: 20px;
  align-items: start;
}

.product-sidebar {
  position: sticky;
  top: 88px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 16px;
}

.product-sidebar h3 {
  margin: 0 0 14px;
}

.side-card {
  margin-top: 14px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.side-card h4 {
  margin: 0 0 6px;
}

.side-card p {
  margin: 0;
  color: var(--text-light);
}

.list-head {
  margin-bottom: 14px;
}

.list-head h2 {
  margin: 0 0 6px;
}

.list-head p {
  margin: 0;
  color: var(--text-light);
}

.cta {
  color: #e2e8f0;
  background: linear-gradient(120deg, var(--bg-deep), #0f172a 40%, #1e293b);
}

.cta-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.cta h2 {
  margin: 0 0 8px;
}

.cta p {
  margin: 0;
  color: #cbd5e1;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-box h3 {
  margin-top: 0;
}

.contact-grid-rich {
  align-items: start;
}

.contact-kv {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 12px;
}

.kv-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.kv-label {
  color: var(--text-light);
  font-weight: 600;
  font-size: 13px;
}

.kv-value {
  font-weight: 600;
}

.kv-value a {
  color: var(--primary);
  text-decoration: none;
}

.kv-value a:hover {
  text-decoration: underline;
}

.contact-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.contact-sub {
  margin: 0 0 14px;
  color: var(--text-light);
}

.contact-form {
  display: grid;
  gap: 12px;
}

.contact-form label {
  display: grid;
  gap: 6px;
}

.contact-form span {
  font-size: 13px;
  color: var(--text-light);
  font-weight: 600;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
  outline: none;
  background: #fff;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: rgba(37, 99, 235, 0.55);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.form-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.form-tip {
  margin: 0;
  color: var(--text-light);
  font-size: 13px;
}

.contact-note {
  margin-top: 16px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.contact-note h4 {
  margin: 0 0 6px;
}

.contact-note p {
  margin: 0 0 8px;
  color: var(--text-light);
}

.contact-map {
  margin-top: 16px;
}

.map-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 12px;
}

.map-head p {
  margin: 6px 0 0;
  color: var(--text-light);
}

.map-preview {
  width: 100%;
  border: 1px dashed #94a3b8;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 15% 30%, rgba(14, 165, 233, 0.18), transparent 40%),
    radial-gradient(circle at 80% 65%, rgba(37, 99, 235, 0.16), transparent 42%),
    linear-gradient(180deg, #f8fafc, #ffffff);
  padding: 18px;
  cursor: pointer;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  align-items: center;
  text-align: left;
}

.map-preview:hover {
  border-color: rgba(37, 99, 235, 0.6);
}

.map-preview .pin {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.2);
  font-size: 18px;
}

.preview-text strong {
  display: block;
}

.preview-text span {
  display: block;
  margin-top: 2px;
  color: var(--text-light);
  font-size: 13px;
}

.map-modal {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.6);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
  z-index: 50;
}

.map-modal.is-open {
  display: flex;
}

.map-dialog {
  width: min(980px, 96vw);
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 20px 60px rgba(2, 6, 23, 0.35);
  overflow: hidden;
}

.map-dialog-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.map-dialog-head strong {
  display: block;
}

.map-dialog-head span {
  display: block;
  color: var(--text-light);
  font-size: 13px;
  margin-top: 2px;
}

.map-close {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
}

.map-close:hover {
  border-color: rgba(37, 99, 235, 0.6);
}

.map-embed {
  height: min(520px, 70vh);
  background: #f8fafc;
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.map-links {
  display: flex;
  gap: 18px;
  padding: 12px 16px 16px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}

.site-footer {
  padding: 22px 0;
  color: #cbd5e1;
  background: #0f172a;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-wrap p {
  margin: 0;
}

@media (max-width: 920px) {
  .metrics-grid,
  .process-grid,
  .hero-grid,
  .about-grid,
  .feature-grid,
  .gallery-grid,
  .product-grid {
    grid-template-columns: 1fr 1fr;
  }

  .product-layout {
    grid-template-columns: 1fr;
  }

  .product-sidebar {
    position: static;
  }

  .filter-bar.vertical {
    flex-direction: row;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .nav {
    gap: 14px;
    font-size: 14px;
  }

  .hero-image-slot {
    min-height: 260px;
  }

  .hero-image-slot img {
    min-height: 260px;
  }

  .metrics-grid,
  .process-grid,
  .hero-grid,
  .about-grid,
  .feature-grid,
  .gallery-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 56px 0;
  }

  .row-head,
  .cta-wrap {
    flex-direction: column;
    align-items: flex-start;
  }
}