:root {
  --blue: #0b4f8a;
  --blue-dark: #07345f;
  --ink: #172033;
  --muted: #5c697a;
  --line: #d8dee8;
  --soft: #f4f7fb;
  --dark: #24303d;
  --red: #d71920;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: Arial, "Helvetica Neue", Helvetica, "Microsoft YaHei", sans-serif;
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.enho-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--dark);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  color: #fff;
}
.enho-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 20px;
}
.enho-brand { display: inline-flex; align-items: center; gap: 10px; min-width: 150px; }
.enho-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(136, 211, 255, .55);
  color: #d8f3ff;
  font-weight: 800;
}
.enho-brand-text { display: block; font-size: 15px; font-weight: 800; white-space: nowrap; }
.enho-menu { display: flex; align-items: center; justify-content: center; gap: 28px; font-size: 15px; font-weight: 800; }
.enho-menu a { padding: 8px 0; }
.enho-menu a:hover, .enho-menu a[aria-current="page"] { color: #9ee8ff; }
.enho-actions { display: flex; align-items: center; justify-content: flex-end; gap: 10px; }
.enho-lang { display: inline-flex; align-items: center; border: 1px solid rgba(255, 255, 255, .22); }
.enho-lang a { min-width: 42px; padding: 8px 10px; color: #e8eef6; font-size: 13px; font-weight: 800; text-align: center; }
.enho-lang a + a { border-left: 1px solid rgba(255, 255, 255, .22); }
.enho-lang a[aria-current="page"] { background: rgba(255, 255, 255, .16); color: #fff; }
.enho-consult {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 16px;
  background: var(--red);
  color: #fff;
  font-size: 14px;
  font-weight: 900;
  white-space: nowrap;
}
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.section { padding: 64px 0; }
.section.soft { background: var(--soft); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-head h2 { margin: 0; color: #101827; font-size: 32px; line-height: 1.2; }
.section-head p { margin: 8px 0 0; color: var(--muted); }

.hero {
  min-height: calc(100vh - 67px);
  display: grid;
  align-items: center;
  background: linear-gradient(90deg, rgba(5, 12, 22, .94), rgba(5, 12, 22, .68)), url("/assets/images/industrial-collection/hero-industrial-live.jpg") center/cover no-repeat;
  color: #fff;
}
.hero-inner { max-width: 1180px; margin: 0 auto; padding: 86px 20px; width: 100%; }
.hero h1 { max-width: 760px; margin: 0; font-size: clamp(38px, 6vw, 68px); line-height: 1.08; letter-spacing: 0; }
.hero p { max-width: 720px; margin: 20px 0 0; color: #dce8f5; font-size: 20px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 20px;
  border: 1px solid var(--blue);
  color: var(--blue);
  font-weight: 900;
}
.btn.primary { background: var(--blue); color: #fff; }
.btn.red { background: var(--red); border-color: var(--red); color: #fff; }
.btn.light { border-color: #fff; color: #fff; }

.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.product-card { display: flex; flex-direction: column; border: 1px solid var(--line); background: #fff; min-height: 100%; }
.product-card img { width: 100%; aspect-ratio: 1.45 / 1; object-fit: cover; background: #fff; border-bottom: 1px solid var(--line); }
.product-body { display: flex; flex: 1; flex-direction: column; padding: 22px; }
.product-body h3 { margin: 0 0 14px; font-size: 22px; }
.product-body h3 a:hover { color: var(--blue); }
.product-desc {
  margin: 0 0 16px;
  color: #3e4b5f;
  font-size: 15px;
  min-height: 72px;
}
.tag-list { display: grid; gap: 8px; margin: 0 0 14px; padding: 0; list-style: none; }
.tag-list li { color: #26364a; font-weight: 800; }
.product-desc { margin: 0 0 14px; color: #334155; font-size: 15px; line-height: 1.7; }
.fit { margin: 0 0 18px; color: var(--muted); }
.product-body .btn { margin-top: auto; }

.scene-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.scene-card { border: 1px solid var(--line); background: #fff; }
.scene-card.solution-link { display: block; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.scene-card.solution-link:hover { transform: translateY(-3px); border-color: #9ec7e6; box-shadow: 0 16px 36px rgba(23,32,51,.12); }
.scene-card img { width: 100%; aspect-ratio: 1.52 / 1; object-fit: cover; }
.scene-card strong { display: block; padding: 14px 16px 4px; font-size: 17px; }
.scene-card p { margin: 0; padding: 0 16px 16px; color: var(--muted); font-size: 14px; line-height: 1.55; }

.application-filters {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 24px 44px;
  margin: 0 0 56px;
}
.app-filter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 42px;
  border-bottom: 1px solid var(--line);
  color: #1f2937;
  font-weight: 900;
  cursor: pointer;
}
.app-filter input {
  appearance: none;
  width: 26px;
  height: 26px;
  border: 2px solid #3fb5ff;
  border-radius: 4px;
  background: #fff;
}
.app-filter input:checked {
  background-color: #fff;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 26 26'%3E%3Cpath d='M5 13.5 10.5 19 21.5 6.5' fill='none' stroke='%230ea5e9' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 24px 24px;
}
.solution-count { margin: 0 0 28px; color: var(--muted); font-size: 15px; }
.solution-count strong { color: var(--ink); }
.solution-card-meta { display: block; padding: 0 16px 18px; color: var(--blue); font-size: 14px; font-weight: 900; }

.solution-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.solution-tabs a { border: 1px solid var(--line); background: #fff; padding: 10px 14px; color: var(--blue); font-weight: 900; }
.solution-detail-section { padding: 56px 0; }
.solution-detail-section:nth-child(even) { background: var(--soft); }
.solution-detail-block {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  gap: 30px;
  align-items: center;
}
.solution-detail-copy h2 { margin: 0 0 14px; font-size: 32px; line-height: 1.2; }
.solution-detail-copy p { margin: 0 0 16px; color: var(--muted); font-size: 17px; line-height: 1.85; }
.solution-bullets { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.solution-bullets li { border-left: 3px solid var(--blue); background: #fff; padding: 11px 13px; color: #25354a; font-weight: 800; line-height: 1.55; }
.solution-detail-image { border: 1px solid var(--line); background: #fff; padding: 14px; }
.solution-detail-image img { width: 100%; aspect-ratio: 1.55 / 1; object-fit: cover; }
.solution-detail-image img.contain { object-fit: contain; background: #f8fafc; }

.solution-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: 24px;
  align-items: center;
  border: 1px solid var(--line);
  background: #fff;
  padding: 28px;
}
.solution-feature + .solution-feature { margin-top: 18px; }
.solution-feature h3 { margin: 0 0 12px; font-size: 26px; line-height: 1.22; }
.solution-feature p { margin: 0 0 16px; color: var(--muted); font-size: 16px; line-height: 1.8; }
.solution-list { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.solution-list li { border-left: 3px solid var(--blue); background: var(--soft); padding: 10px 12px; color: #25354a; font-weight: 800; line-height: 1.55; }
.solution-visual { border: 1px solid var(--line); background: #f8fafc; padding: 12px; }
.solution-visual img { width: 100%; aspect-ratio: 1.45 / 1; object-fit: contain; }

.adv-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.adv-item { display: grid; min-height: 86px; place-items: center; border: 1px solid var(--line); background: #fff; padding: 18px; color: #122033; font-size: 18px; font-weight: 900; text-align: center; }

.contact-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.contact-card { border: 1px solid var(--line); background: #fff; padding: 22px; }
.contact-card h3 { margin: 0 0 12px; font-size: 20px; }
.contact-card p { margin: 8px 0; color: var(--muted); }
.contact-card a { color: var(--blue); font-weight: 900; overflow-wrap: anywhere; }
.qr { width: 160px; height: 160px; margin-top: 14px; border: 1px solid var(--line); object-fit: contain; }

.detail-hero { background: var(--soft); padding: 54px 0; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
.detail-copy h1 { margin: 0 0 16px; font-size: 42px; line-height: 1.16; }
.detail-copy p { color: var(--muted); font-size: 18px; }
.image-frame { border: 1px solid var(--line); background: #fff; padding: 18px; }
.image-pair { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
.image-pair img { width: 100%; aspect-ratio: 1.35 / 1; object-fit: cover; }
.mini-scenes { display: flex; flex-wrap: wrap; gap: 10px; }
.mini-scenes span { border: 1px solid var(--line); background: #fff; padding: 8px 12px; font-weight: 800; }

.enho-footer { border-top: 1px solid var(--line); padding: 22px 20px; color: #5f6b7a; font-size: 13px; text-align: center; }

@media (max-width: 940px) {
  .enho-nav { align-items: stretch; flex-direction: column; gap: 12px; }
  .enho-brand, .enho-menu, .enho-actions { justify-content: center; }
  .product-grid, .contact-grid, .detail-grid, .solution-feature, .solution-detail-block { grid-template-columns: 1fr; }
  .application-filters { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px 24px; }
  .scene-grid, .adv-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .enho-nav { padding: 12px; }
  .enho-menu { gap: 14px; font-size: 14px; }
  .enho-actions { flex-wrap: wrap; }
  .enho-lang, .enho-consult { width: 100%; }
  .enho-lang a { flex: 1; }
  .section { padding: 44px 0; }
  .section-head { display: block; }
  .application-filters { grid-template-columns: 1fr; }
  .scene-grid, .adv-grid { grid-template-columns: 1fr; }
  .hero-inner { padding: 60px 16px; }
}

.detail-gallery { display: grid; gap: 14px; }
.detail-thumbs { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.detail-thumbs img { width: 100%; aspect-ratio: 1.35 / 1; object-fit: cover; border: 1px solid var(--line); background: #fff; }

.hero-note { max-width: 900px; font-size: 17px; line-height: 1.8; color: #edf6ff; }
.text-panel { display: grid; gap: 16px; border: 1px solid var(--line); background: #fff; padding: 28px; color: #26364a; font-size: 17px; line-height: 1.9; }
.text-panel p { margin: 0; }
.long-text { min-height: 240px; line-height: 1.78; }
.adv-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.adv-item { place-items: start; text-align: left; line-height: 1.65; }
.home-gateway { min-height: 100vh; display: grid; place-items: center; gap: 28px; padding: 40px 20px; background: #f4f7fb; }
.home-logo { display: inline-flex; align-items: center; gap: 12px; color: #172033; font-size: 28px; }
.home-gateway-grid { width: min(980px, 100%); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.home-gateway-card { min-height: 320px; display: grid; place-items: center; align-content: center; gap: 14px; border: 1px solid var(--line); background: #fff; color: #172033; box-shadow: 0 18px 45px rgba(23,32,51,.08); }
.home-gateway-card img { width: 190px; height: 150px; object-fit: contain; }
.home-gateway-card strong { font-size: 36px; }
.home-gateway-card span { color: var(--muted); font-weight: 800; }
@media (max-width: 940px) { .adv-grid { grid-template-columns: 1fr; } .long-text { min-height: 0; } }
@media (max-width: 640px) { .home-gateway-grid { grid-template-columns: 1fr; } .home-gateway-card { min-height: 240px; } .home-gateway-card strong { font-size: 30px; } }