:root {
  --canvas: #f5f6f2;
  --surface: #ffffff;
  --ink: #171b19;
  --muted: #5e6762;
  --line: #d8ddd9;
  --primary: #245a43;
  --primary-dark: #173d2d;
  --signal: #b64032;
  --focus: #1675d1;
  --container: 1280px;
  --header-height: 76px;
  --radius-control: 4px;
  --radius-card: 8px;
  --font-body: 'Inter', 'Noto Sans SC', "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  --font-display: Bahnschrift, 'Inter', 'Noto Sans SC', "Microsoft YaHei", sans-serif;
  --section-y: 72px;
  --section-y-lg: 88px;
  --page-title-size: 2.25rem;
  --section-title-size: 1.875rem;
  --motion-fast: 160ms;
  --motion-state: 240ms;
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

body > main { flex: 1 0 auto; }

img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select { font: inherit; letter-spacing: 0; }
button, summary, select { cursor: pointer; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  padding: 10px 16px;
  color: #fff;
  background: var(--ink);
  transform: translateY(-150%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.header-inner {
  min-height: var(--header-height);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 36px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  white-space: nowrap;
}

.brand-cn { font-family: var(--font-display); font-size: 20px; font-weight: 700; }
.brand-en { color: var(--primary); font-family: var(--font-display); font-size: 12px; font-weight: 700; }

.desktop-nav { display: flex; justify-content: center; gap: 30px; }
.desktop-nav a, .site-footer nav a { text-decoration: none; }
.desktop-nav a { padding: 24px 0 20px; border-bottom: 3px solid transparent; font-size: 15px; }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"] { color: var(--primary); border-bottom-color: var(--primary); }

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-control);
  color: #fff;
  background: var(--primary);
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  transition: background-color 150ms ease-out, border-color 150ms ease-out;
}

.button:hover { border-color: var(--primary-dark); background: var(--primary-dark); }
.button-small { min-height: 42px; padding: 8px 16px; font-size: 14px; }
.button-secondary { color: var(--ink); background: transparent; border-color: #89928d; }
.button-secondary:hover { color: #fff; border-color: var(--ink); background: var(--ink); }
.button-light { color: var(--ink); background: #fff; border-color: #fff; }
.button-light:hover { color: #fff; background: var(--primary); border-color: var(--primary); }

.text-link { font-weight: 700; text-underline-offset: 5px; }
.text-link-light { color: #fff; }
.mobile-nav { display: none; }

.hero {
  position: relative;
  min-height: 650px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: #fff;
  background: #25332c;
}

.hero-image, .hero-scrim { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-image { object-fit: cover; object-position: center; }
.hero-scrim { background: rgba(10, 18, 14, 0.34); }
.hero-content { position: relative; z-index: 1; padding-block: 112px 82px; }
.hero-brand { margin: 0 0 16px; font-family: var(--font-display); font-size: 15px; font-weight: 700; }
.hero h1 { max-width: 800px; margin: 0; font-family: var(--font-display); font-size: clamp(2.75rem, 5vw, 4.25rem); line-height: 1.04; letter-spacing: 0; text-wrap: balance; }
.hero-lead { max-width: 620px; margin: 24px 0 0; font-size: 20px; line-height: 1.65; text-wrap: pretty; }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 36px; }
.hero-caption { position: absolute; z-index: 1; right: 24px; bottom: 18px; margin: 0; color: rgba(255, 255, 255, 0.82); font-size: 12px; }

.catalog-summary { color: #fff; background: var(--primary-dark); padding-block: 28px; text-align: center; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.catalog-slogan { margin: 0; font-family: var(--font-display); font-size: clamp(1.05rem, 2vw, 1.25rem); font-weight: 500; letter-spacing: 0.05em; color: #e4ebe7; }
.hero-content { max-width: 520px; }
.hero { min-height: 600px; }

.section { padding-block: var(--section-y); }
.section-heading { max-width: 720px; margin-bottom: 42px; }
.heading-split { max-width: none; display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 520px); align-items: end; gap: 48px; }
.heading-stack { max-width: 40rem; margin-bottom: 28px; }
.heading-stack > p:last-child { margin: 0.75rem 0 0; color: var(--muted); }
.section-heading h2, .company-layout h2, .contact-layout h2, .page-intro h1, .page-state h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--section-title-size);
  line-height: 1.2;
  letter-spacing: 0;
  text-wrap: balance;
}
.section-heading p, .company-copy p, .contact-layout p { text-wrap: pretty; }
.section-heading > p:last-child, .heading-split > p { margin: 0; color: var(--muted); }
.section-heading.heading-stack > p:last-child { margin: 0.75rem 0 0; }
.section-label { margin: 0 0 12px; color: var(--primary); font-size: 14px; font-weight: 700; }
.section-label-light { color: #c6ddd2; }

.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px 20px; }
.product-card { min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-card); background: var(--surface); contain: layout paint style; content-visibility: auto; contain-intrinsic-size: auto 360px; }
.product-card > a { display: block; color: inherit; text-decoration: none; }
.product-card-image { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: #e8ebe7; }
.product-card-image.image-missing::before, .gallery-grid .image-missing::before { content: "图片暂时无法读取"; min-height: 180px; display: grid; place-items: center; padding: 20px; color: var(--muted); font-size: 13px; text-align: center; }
.product-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  transition: transform 220ms var(--ease-out-quart), box-shadow 220ms var(--ease-out-quart), border-color 220ms ease-out;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px -6px rgba(0, 0, 0, 0.08), 0 4px 8px -2px rgba(0, 0, 0, 0.04);
  border-color: rgba(36, 90, 67, 0.3);
}
.product-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 260ms var(--ease-out-quart); }
.product-card a:hover .product-card-image img { transform: scale(1.05); }
.product-card-count { position: absolute; right: 8px; bottom: 8px; padding: 3px 8px; border-radius: 3px; color: #fff; background: rgba(23, 27, 25, 0.84); font-size: 12px; font-variant-numeric: tabular-nums; }
.product-card-body { padding: 18px; }
.product-card-meta { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 7px; color: var(--primary); font-size: 13px; font-weight: 700; }
.product-card h3 { margin: 0; font-size: 18px; line-height: 1.4; overflow-wrap: anywhere; }
.product-card-spec { margin: 12px 0 0; color: var(--muted); font-size: 14px; line-height: 1.55; overflow-wrap: anywhere; }
.section-action { margin-top: 44px; text-align: center; }
.loading-state { grid-column: 1 / -1; padding: 48px; text-align: center; color: var(--muted); }

/* --- Skeleton Pulse Loader --- */
.skeleton-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.skeleton-image {
  aspect-ratio: 4 / 3;
  background: #eef1ed;
  position: relative;
  overflow: hidden;
}
.skeleton-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.skeleton-line {
  height: 14px;
  border-radius: 4px;
  background: #e8ebe7;
  position: relative;
  overflow: hidden;
}
.skeleton-line.w-40 { width: 40%; }
.skeleton-line.w-60 { width: 60%; }
.skeleton-line.w-80 { width: 80%; }
.skeleton-pulse::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.7), transparent);
  animation: skeleton-pulse 1.4s infinite;
}
@keyframes skeleton-pulse {
  100% { transform: translateX(100%); }
}

/* --- Filter Chips & Quick Clear --- */
.filter-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.filter-search-wrap input {
  width: 100%;
  padding-right: 32px;
}
.clear-search-btn {
  position: absolute;
  right: 8px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 16px;
  padding: 4px 8px;
  cursor: pointer;
  border-radius: 50%;
  line-height: 1;
}
.clear-search-btn:hover {
  color: var(--ink);
  background: rgba(0, 0, 0, 0.05);
}
.filter-chips {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}
.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 100px;
  background: rgba(36, 90, 67, 0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid rgba(36, 90, 67, 0.18);
}
.filter-chip-remove {
  border: 0;
  background: transparent;
  color: var(--primary);
  padding: 0;
  cursor: pointer;
  font-size: 14px;
  font-weight: bold;
  line-height: 1;
  border-radius: 50%;
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.filter-chip-remove:hover {
  background: var(--signal);
  color: #fff;
}

/* --- Toast Feedback Component --- */
.toast-container {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  padding: 12px 20px;
  border-radius: 6px;
  color: #fff;
  background: var(--ink);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toast-in 240ms var(--ease-out-quart) forwards;
}
.toast.is-hiding {
  animation: toast-out 200ms ease-in forwards;
}
@keyframes toast-in {
  from { opacity: 0; transform: translateY(12px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes toast-out {
  to { opacity: 0; transform: translateY(8px) scale(0.96); }
}

/* --- Detail Thumbnails Track --- */
.detail-thumbnails-track {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-block: 12px 6px;
  scroll-behavior: smooth;
}
.detail-thumb-btn {
  flex: 0 0 76px;
  height: 57px;
  border: 2px solid transparent;
  border-radius: 6px;
  overflow: hidden;
  padding: 0;
  background: var(--image-placeholder);
  cursor: pointer;
  transition: border-color 160ms ease-out, transform 160ms ease-out, box-shadow 160ms ease-out;
}
.detail-thumb-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.detail-thumb-btn:hover {
  transform: translateY(-2px);
}
.detail-thumb-btn.is-active {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(36, 90, 67, 0.25);
}
.product-grid-compact { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.home-entry-section { background: var(--surface); }
.home-entry-list { border-top: 1px solid var(--ink); }
.home-entry-list > a { min-height: 178px; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 48px; padding-block: 30px; border-bottom: 1px solid var(--line); text-decoration: none; }
.home-entry-list > a:hover h3, .home-entry-list > a:hover > strong { color: var(--primary); }
.home-entry-list span { color: var(--primary); font-size: 13px; font-weight: 700; }
.home-entry-list h3 { margin: 6px 0; font-family: var(--font-display); font-size: 28px; }
.home-entry-list p { max-width: 680px; margin: 0; color: var(--muted); }
.home-entry-list > a > strong { white-space: nowrap; text-decoration: underline; text-underline-offset: 5px; }

.home-company { background: var(--surface); }
.home-company-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 96px; align-items: start; }
.home-company h2 { margin: 0; font-family: var(--font-display); font-size: var(--section-title-size); line-height: 1.2; }
.home-company-grid > div:last-child > p { max-width: 720px; margin-top: 0; font-size: 18px; }
.inline-links { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 28px; }
.inline-links a { color: var(--primary); font-weight: 700; text-underline-offset: 5px; }

.category-band { border-block: 1px solid var(--line); background: #eef1ed; }
.category-list { border-top: 1px solid var(--ink); }
.category-row { min-height: 76px; display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 24px; border-bottom: 1px solid var(--line); text-decoration: none; }
.category-row:hover { color: var(--primary); }
.category-row strong { font-size: 20px; }
.category-row span { color: var(--muted); font-variant-numeric: tabular-nums; }
.category-row b { font-size: 14px; }

.service-section { background: var(--surface); }
.service-layout { display: grid; grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr); gap: 96px; }
.service-steps { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.service-steps li { display: grid; grid-template-columns: 48px 1fr; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.service-steps li > span { color: var(--signal); font-family: var(--font-display); font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.service-steps h3 { margin: 0 0 4px; font-size: 19px; }
.service-steps p { margin: 0; color: var(--muted); }

.company-section { background: var(--canvas); }
.company-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 96px; align-items: start; }
.company-copy { max-width: 720px; font-size: 18px; }
.company-copy p:first-child { margin-top: 0; }

.contact-section { color: #fff; background: var(--ink); }
.contact-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 96px; }
.contact-layout > div:first-child p:last-child { max-width: 620px; color: #c9cfcc; }
.contact-details { border-top: 1px solid #68706c; }
.contact-details > * { min-height: 82px; display: grid; grid-template-columns: 120px 1fr; align-items: center; gap: 20px; border-bottom: 1px solid #68706c; text-decoration: none; }
.contact-details span { color: #adb8b2; font-size: 14px; }
.contact-details strong { overflow-wrap: anywhere; }
.contact-details a:hover strong { color: #b8d9c8; text-decoration: underline; text-underline-offset: 5px; }

.site-footer {
  color: #c9cfcc;
  background: #171b19;
  font-size: 14px;
  border-top: 0;
}
.site-footer a { color: #e8ecea; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 40px 48px;
  padding: 56px 0 40px;
}
.footer-col h2 {
  margin: 0 0 16px;
  color: #c9cfcc;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.footer-col p { margin: 0 0 10px; color: #adb8b2; line-height: 1.65; max-width: 22rem; }
.footer-col .footer-brand {
  margin: 0 0 8px;
  color: #fff;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
}
.footer-col nav { display: flex; flex-direction: column; gap: 10px; }
.footer-col nav a { color: #e8ecea; }
.footer-col nav a:hover { color: #fff; }
.footer-col .footer-line { display: block; margin: 0 0 10px; color: #e8ecea; line-height: 1.6; }
.footer-col .footer-line:hover { color: #fff; }
.footer-col address {
  margin: 0;
  font-style: normal;
  color: #adb8b2;
  line-height: 1.65;
}
.footer-hours { margin-top: 10px !important; }
.footer-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding: 18px 0 28px;
  border-top: 1px solid #2c3330;
  color: #8b9590;
  font-size: 13px;
}
.footer-bar p { margin: 0; }

.page-intro { padding-block: 56px; color: #fff; background: var(--primary-dark); }
.page-intro.page-intro-compact { padding-block: 40px; }
.page-intro-compact h1 { margin: 0; font-size: var(--page-title-size); }
.page-intro-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; align-items: end; gap: 72px; }
.page-intro .section-label { color: #bad5c8; }
.page-intro h1 { font-size: var(--page-title-size); }
.page-intro-grid > p { max-width: 560px; margin: 0; color: #d8e1dc; font-size: 18px; }
.catalog-section { padding-block: 48px 96px; }

.filter-bar { display: grid; grid-template-columns: minmax(260px, 1.4fr) repeat(3, minmax(150px, 0.7fr)) auto; align-items: end; gap: 14px; padding: 22px; border: 1px solid var(--line); background: var(--surface); }
.filter-bar label { display: block; margin-bottom: 7px; font-size: 13px; font-weight: 700; }
.filter-bar input, .filter-bar select { width: 100%; min-height: 48px; padding: 10px 12px; color: var(--ink); border: 1px solid #89928d; border-radius: var(--radius-control); background: #fff; }
.filter-bar input::placeholder { color: #707a74; }
.reset-button { white-space: nowrap; }
.result-toolbar { min-height: 76px; display: flex; justify-content: space-between; align-items: center; gap: 24px; border-bottom: 1px solid var(--line); }
.result-toolbar p { margin: 0; color: var(--muted); font-size: 14px; }
.result-toolbar p:first-child { color: var(--ink); font-size: 16px; font-weight: 700; }
.catalog-grid { padding-top: 28px; }
.empty-state { margin-top: 28px; padding: 72px 24px; border: 1px solid var(--line); text-align: center; background: var(--surface); }
.empty-state h3 { margin: 0; font-size: 24px; }
.empty-state p { margin: 8px 0 24px; color: var(--muted); }

.pagination { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 48px; }
.pagination button { min-width: 46px; min-height: 46px; padding: 8px 12px; border: 1px solid #89928d; border-radius: var(--radius-control); color: var(--ink); background: transparent; transition: color var(--motion-fast) ease-out, background-color var(--motion-fast) ease-out, border-color var(--motion-fast) ease-out, transform 100ms ease-out; }
.pagination button:hover, .pagination button[aria-current="page"] { color: #fff; background: var(--primary); border-color: var(--primary); }
.pagination button:active:not(:disabled) { transform: scale(0.96); }
.pagination button:disabled { cursor: not-allowed; opacity: 0.45; }

.page-state { min-height: 480px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding-block: 80px; }
.page-state p { color: var(--muted); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 10px; padding-block: 28px; color: var(--muted); font-size: 14px; }
.breadcrumb a:hover { color: var(--primary); }
.detail-hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.75fr); gap: 64px; align-items: start; padding-bottom: 80px; }
.detail-primary-image { position: sticky; top: 24px; aspect-ratio: 4 / 3; margin: 0; overflow: hidden; border-radius: var(--radius-card); background: #e8ebe7; }
.detail-primary-image > #product-primary-media { width: 100%; height: 100%; }
.detail-primary-image img { width: 100%; height: 100%; object-fit: cover; }
.detail-summary { padding-top: 10px; }
.detail-summary h1 { margin: 0; font-family: var(--font-display); font-size: 48px; line-height: 1.1; letter-spacing: 0; overflow-wrap: anywhere; }
.detail-name { margin: 12px 0 28px; color: var(--muted); font-size: 20px; overflow-wrap: anywhere; }
.spec-list { margin: 0; border-top: 1px solid var(--ink); }
.spec-list div { display: grid; grid-template-columns: 120px 1fr; gap: 18px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.spec-list dt { color: var(--muted); }
.spec-list dd { margin: 0; font-weight: 700; overflow-wrap: anywhere; }
.detail-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 28px; }
.copy-status { min-height: 26px; margin: 10px 0 0; color: var(--primary); font-size: 14px; }

.source-record { display: block; grid-template-columns: unset; gap: unset; padding-block: 40px; border-bottom: 1px solid var(--line); }
.source-record details { border-top: 1px solid var(--ink); padding-top: 8px; }
.source-record summary { min-height: 48px; display: flex; align-items: center; justify-content: space-between; gap: 16px; font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; cursor: pointer; list-style: none; }
.source-record summary::-webkit-details-marker { display: none; }
.source-record summary::after { content: "+"; color: var(--primary); font-size: 1.5rem; }
.source-record details[open] summary::after { transform: rotate(45deg); }
.source-record pre { margin: 12px 0 0; padding: 22px; overflow-x: auto; color: #e5ece8; border-radius: var(--radius-control); background: #222725; font: 15px/1.8 Consolas, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }
.image-archive { padding-block: 88px; }
.gallery-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.gallery-grid figure { margin: 0; overflow: hidden; border-radius: var(--radius-card); background: #e8ebe7; }
.gallery-grid .zoomable-image { aspect-ratio: 4 / 3; }
.gallery-grid img { width: 100%; height: 100%; object-fit: cover; }
.gallery-grid figcaption { padding: 10px 12px; color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.gallery-grid figcaption.is-quiet { color: var(--muted); font-variant-numeric: tabular-nums; }
.detail-primary-image.image-missing::before { content: "主图暂时无法读取"; position: absolute; inset: 0; display: grid; place-items: center; padding: 20px; color: var(--muted); font-size: 14px; text-align: center; }

.zoomable-image { position: relative; overflow: hidden; }
.image-zoom-trigger { position: absolute; inset: 0; z-index: 2; padding: 0; border: 0; background: transparent; cursor: zoom-in; }
.image-zoom-trigger:focus-visible { outline: 3px solid var(--focus); outline-offset: -4px; }
.magnifier-icon { position: absolute; right: 10px; bottom: 10px; width: 38px; height: 38px; border: 1px solid rgba(255, 255, 255, 0.72); border-radius: var(--radius-control); background: rgba(23, 27, 25, 0.84); opacity: 0.88; transition: opacity 160ms ease-out, transform 160ms ease-out; }
.magnifier-icon::before { content: ""; position: absolute; left: 10px; top: 8px; width: 12px; height: 12px; border: 2px solid #fff; border-radius: 50%; }
.magnifier-icon::after { content: ""; position: absolute; left: 22px; top: 21px; width: 9px; height: 2px; border-radius: 1px; background: #fff; transform: rotate(45deg); transform-origin: left center; }
.image-zoom-trigger:hover .magnifier-icon, .image-zoom-trigger:focus-visible .magnifier-icon { opacity: 1; transform: scale(1.06); }
body.viewer-open { overflow: hidden; }

.image-viewer { width: 100vw; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; overflow: hidden; color: #fff; border: 0; background: rgba(10, 18, 14, 0.97); animation: image-viewer-enter 180ms ease-out both; }
.image-viewer::backdrop { background: #0a120e; }
.image-viewer.is-closing { animation: image-viewer-leave 160ms ease-in both; }
.image-viewer-shell { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; width: 100%; height: 100%; }
.image-viewer-toolbar { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 8px 18px; }
.image-viewer-count, .image-viewer-caption { margin: 0; color: #d7ded9; font-size: 14px; font-variant-numeric: tabular-nums; }
.image-viewer-close, .image-viewer-nav { display: grid; place-items: center; width: 44px; height: 44px; padding: 0; color: #fff; border: 1px solid rgba(255, 255, 255, 0.42); border-radius: var(--radius-control); background: rgba(10, 18, 14, 0.76); cursor: pointer; transition: border-color 150ms ease-out, background-color 150ms ease-out, transform 150ms ease-out; }
.image-viewer-close span { font-size: 30px; line-height: 1; transform: translateY(-1px); }
.image-viewer-nav span { font-size: 36px; line-height: 1; transform: translateY(-2px); }
.image-viewer-close:hover, .image-viewer-nav:hover { border-color: #fff; background: #27302b; }
.image-viewer-close:active, .image-viewer-nav:active { transform: scale(0.96); }
.image-viewer-close:focus-visible, .image-viewer-nav:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.image-viewer-stage { position: relative; min-height: 0; display: grid; place-items: center; padding: 10px 74px; }
.image-viewer-image-wrap { position: relative; display: inline-block; max-width: calc(100vw - 164px); max-height: calc(100dvh - 138px); overflow: hidden; line-height: 0; touch-action: none; cursor: zoom-in; }
.image-viewer-image { display: block; width: auto; height: auto; max-width: calc(100vw - 164px); max-height: calc(100dvh - 138px); object-fit: contain; opacity: 1; transition: opacity 120ms ease-out; }
.image-viewer-image.is-loading { opacity: 0.34; }
.image-viewer-nav { position: absolute; z-index: 2; top: 50%; transform: translateY(-50%); }
.image-viewer-nav:active { transform: translateY(-50%) scale(0.96); }
.image-viewer-prev { left: 18px; }
.image-viewer-next { right: 18px; }
.image-viewer-caption { min-height: 54px; padding: 12px 18px 18px; text-align: center; }
.image-magnifier { position: absolute; z-index: 3; width: 180px; aspect-ratio: 1; border: 2px solid #fff; border-radius: 50%; background-color: #e8ebe7; background-repeat: no-repeat; box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3); opacity: 0; pointer-events: none; transform: translate(-50%, -50%) scale(0.92); transition: opacity 100ms ease-out, transform 100ms ease-out; }
.image-viewer-image-wrap.is-zooming { cursor: none; }
.image-viewer-image-wrap.is-zooming .image-magnifier { opacity: 1; transform: translate(-50%, -50%) scale(1); }

@keyframes image-viewer-enter {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes image-viewer-leave {
  from { opacity: 1; }
  to { opacity: 0; }
}

.content-section, .preparation-section, .archive-images, .category-table-section, .contact-page-section, .before-contact { background: var(--surface); }
.service-detail-list { border-top: 1px solid var(--ink); }
.service-detail-list article { display: grid; grid-template-columns: 180px 1fr; gap: 56px; padding-block: 34px; border-bottom: 1px solid var(--line); }
.service-detail-list article > span { color: var(--primary); font-size: 14px; font-weight: 700; }
.service-detail-list h3 { margin: 0 0 8px; font-family: var(--font-display); font-size: 25px; }
.service-detail-list p { max-width: 760px; margin: 0; color: var(--muted); }
.service-detail-list a { display: inline-block; margin-top: 14px; color: var(--primary); font-weight: 700; text-underline-offset: 5px; }
.scope-disclaimer, .services-contact-hint, .category-note { margin: 24px 0 0; color: var(--muted); font-size: 14px; }
.services-contact-hint a { margin-left: 0.25em; color: var(--primary); font-weight: 700; text-underline-offset: 5px; }

.process-band { background: #eef1ed; }
.process-layout { display: grid; grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.25fr); gap: 96px; }
.process-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.process-list li { display: grid; grid-template-columns: 54px 1fr; gap: 22px; padding-block: 24px; border-bottom: 1px solid var(--line); }
.process-list > li > strong { color: var(--signal); font-family: var(--font-display); font-variant-numeric: tabular-nums; }
.process-list h3, .numbered-checks h3 { margin: 0 0 4px; font-size: 19px; }
.process-list p, .numbered-checks p { margin: 0; color: var(--muted); }

.content-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 96px; align-items: start; }
.content-grid h2, .faq-layout h2, .about-overview h2, .archive-evidence h2, .inquiry-guide h2 { margin: 0; font-family: var(--font-display); font-size: var(--section-title-size); line-height: 1.2; }
.content-grid > div:first-child > p:last-child { color: var(--muted); }
.check-list, .management-list, .numbered-checks { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.check-list li, .management-list li { display: grid; grid-template-columns: 180px 1fr; gap: 28px; padding-block: 20px; border-bottom: 1px solid var(--line); }
.check-list span, .management-list span { color: var(--muted); }

.faq-section { background: var(--canvas); }
.faq-layout { display: grid; grid-template-columns: 0.65fr 1.35fr; gap: 96px; }
.faq-list { border-top: 1px solid var(--ink); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 20px; font-weight: 700; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--primary); font-family: var(--font-display); font-size: 24px; }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { max-width: 720px; margin: -4px 0 22px; color: var(--muted); }

.motion-details > summary::after { transition: transform var(--motion-state) var(--ease-out-quart); }
.motion-details > .details-panel { display: grid; grid-template-rows: 0fr; opacity: 0; transition: grid-template-rows var(--motion-state) var(--ease-out-quart), opacity var(--motion-fast) ease-out; }
.motion-details[open] > .details-panel { grid-template-rows: 1fr; opacity: 1; }
.motion-details.is-closing[open] > .details-panel { grid-template-rows: 0fr; opacity: 0; }
.details-panel-inner { min-height: 0; overflow: hidden; }

.cta-band { padding-block: 52px; color: #fff; background: var(--primary-dark); }
.cta-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 48px; }
.cta-band h2 { margin: 0; font-family: var(--font-display); font-size: 32px; }
.cta-band p { margin: 6px 0 0; color: #c9cfcc; }

.about-overview { background: var(--surface); }
.about-overview-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 96px; }
.long-copy { max-width: 760px; font-size: 18px; }
.long-copy p:first-child { margin-top: 0; }
.archive-evidence { padding-block: 76px; color: #fff; background: var(--ink); }
.archive-evidence-heading { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 96px; align-items: end; }
.archive-evidence-heading h2 { max-width: 800px; }
.archive-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 54px; border-top: 1px solid #68706c; }
.archive-stats > div { min-height: 132px; display: flex; flex-direction: column; justify-content: center; padding: 22px 24px 22px 0; border-bottom: 1px solid #68706c; }
.archive-stats strong { font-family: var(--font-display); font-size: 1.75rem; font-variant-numeric: tabular-nums; }
.archive-stats span { color: #c9cfcc; font-size: 14px; }
.archive-image-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.archive-image-grid a { color: inherit; text-decoration: none; }
.archive-image-grid img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 6px; background: #e8ebe7; }
.archive-image-grid span { display: block; padding-top: 10px; font-weight: 700; }
.archive-image-grid a:hover span { color: var(--primary); }
.archive-management { background: #eef1ed; }
.data-table { border-top: 1px solid var(--ink); }
.data-table > div { min-height: 62px; display: grid; grid-template-columns: 1fr 180px 120px; align-items: center; gap: 24px; border-bottom: 1px solid var(--line); }
.data-table a { color: var(--primary); font-weight: 700; text-underline-offset: 5px; }

.contact-channel-list { border-top: 1px solid var(--ink); }
.contact-channel-list > a { min-height: 104px; display: grid; grid-template-columns: 120px minmax(0, 1fr) auto; align-items: center; gap: 28px; border-bottom: 1px solid var(--line); text-decoration: none; }
.contact-channel-list > div.contact-address { min-height: 104px; display: grid; grid-template-columns: 120px minmax(0, 1fr); align-items: center; gap: 28px; border-bottom: 1px solid var(--line); }
.contact-channel-list > div.contact-address b { grid-column: 2; justify-self: start; margin-top: 4px; }
.contact-channel-list span { color: var(--muted); }
.contact-channel-list strong { font-size: 20px; overflow-wrap: anywhere; }
.contact-channel-list b { color: var(--primary); font-size: 14px; white-space: nowrap; }
.contact-channel-list a:hover strong { color: var(--primary); }
.inquiry-guide { background: #eef1ed; }
.inquiry-guide-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 96px; align-items: start; }
.inquiry-guide-grid > div:first-child > p:last-child { color: var(--muted); }
.message-template { padding: 28px; border: 1px solid #89928d; border-radius: 6px; background: var(--surface); }
.message-template > p { margin-top: 0; font-size: 18px; }
.message-template dl { margin: 0; }
.message-template dl > div { display: grid; grid-template-columns: 110px 1fr; gap: 18px; padding-block: 12px; border-top: 1px solid var(--line); }
.message-template dt { color: var(--muted); }
.message-template dd { margin: 0; }
.inquiry-tips { margin: 20px 0 0; padding-left: 1.25rem; color: var(--muted); }
.inquiry-tips li + li { margin-top: 6px; }
.numbered-checks li { display: grid; grid-template-columns: 42px 1fr; gap: 24px; padding-block: 24px; border-bottom: 1px solid var(--line); }
.numbered-checks > li > span { color: var(--signal); font-family: var(--font-display); font-size: 20px; font-weight: 700; }

.page-head { padding-block: 40px; color: #fff; background: var(--primary-dark); }
.page-head h1 { margin: 0; font-family: var(--font-display); font-size: var(--page-title-size); line-height: 1.2; letter-spacing: 0; }
.block { padding-block: 64px; }
.block-surface { background: var(--surface); }
.block-title { margin: 0 0 24px; font-family: var(--font-display); font-size: 1.875rem; line-height: 1.2; letter-spacing: 0; text-wrap: balance; }
.split-2 { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: start; gap: 64px; }
.company-statement { max-width: 38rem; font-size: 18px; }
.company-statement p { margin: 0; text-wrap: pretty; }
.company-statement p + p { margin-top: 16px; }
.brand-note { margin: -12px 0 0; color: var(--primary); font-family: var(--font-display); font-size: 14px; font-weight: 700; }

.rail-list { border-top: 1px solid var(--ink); }
.rail-row { min-height: 72px; display: grid; grid-template-columns: 140px minmax(0, 1fr); align-items: center; gap: 28px; padding-block: 20px; border-bottom: 1px solid var(--line); }
.rail-label { color: var(--primary); font-size: 14px; font-weight: 700; }
.rail-row h3 { margin: 0 0 4px; font-family: var(--font-display); font-size: 21px; line-height: 1.35; }
.rail-row p { max-width: 48rem; margin: 0; color: var(--muted); }
.rail-value { color: inherit; text-decoration: none; overflow-wrap: anywhere; }
.rail-value strong { display: block; font-size: 19px; line-height: 1.5; }
.rail-value small { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; }
.rail-row a:hover strong { color: var(--primary); text-decoration: underline; text-underline-offset: 5px; }

.steps-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0; padding: 0; border-block: 1px solid var(--ink); list-style: none; }
.steps-row li { min-height: 190px; padding: 24px; }
.steps-row li + li { border-left: 1px solid var(--line); }
.steps-row strong { display: block; margin-bottom: 36px; color: var(--signal); font-family: var(--font-display); font-variant-numeric: tabular-nums; }
.steps-row h3 { margin: 0 0 8px; font-size: 18px; line-height: 1.4; }
.steps-row p { margin: 0; color: var(--muted); font-size: 14px; }
.process-band { background: #eef1ed; }

.panel { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-card); background: #eef1ed; }
.action-panel { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.action-panel h2, .inquiry-panel h2 { margin: 0; font-family: var(--font-display); font-size: 1.875rem; line-height: 1.2; }
.action-panel p { margin: 8px 0 0; color: var(--muted); }
.service-contact { background: var(--surface); }

.metric-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-block: 1px solid var(--ink); }
.metric-row > div { min-height: 112px; display: flex; align-items: baseline; gap: 12px; padding: 28px 24px; }
.metric-row > div + div { border-left: 1px solid var(--line); }
.metric-row strong { font-family: var(--font-display); font-size: 2rem; font-variant-numeric: tabular-nums; }
.metric-row span { color: var(--muted); font-size: 14px; }
.mosaic-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 32px; }
.mosaic-3 figure { margin: 0; }
.mosaic-3 a { display: block; color: inherit; text-decoration: none; }
.mosaic-3 img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius-card); background: #e8ebe7; }
.mosaic-3 figcaption { padding-top: 10px; font-size: 14px; font-weight: 700; }
.mosaic-3 a:hover figcaption { color: var(--primary); }
.category-table > div { grid-template-columns: minmax(0, 1fr) 100px 80px; }
.category-table > div > :nth-child(2) { justify-self: end; font-variant-numeric: tabular-nums; }
.category-table > div > :last-child { justify-self: end; }
.section-action-start { text-align: left; }

.contact-stage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
  gap: 40px;
  min-height: min(560px, 70vh);
}
.contact-stage > * { min-height: 0; }
.contact-rail .rail-row { min-height: 80px; }
.inquiry-panel {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #eef1ed;
}
.inquiry-panel > p { margin: 16px 0 22px; color: var(--muted); }
.inquiry-panel dl { margin: 0; }
.inquiry-panel dl > div { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 16px; padding-block: 12px; border-top: 1px solid var(--line); }
.inquiry-panel dt { color: var(--muted); }
.inquiry-panel dd { margin: 0; }
.contact-page-section { padding-bottom: 40px; }
.location-section { background: var(--surface); padding-bottom: 80px; }
.location-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: stretch;
  gap: 32px;
}
.location-band h2 { margin: 0 0 18px; font-family: var(--font-display); font-size: 1.875rem; }
.location-band address { max-width: 34rem; font-size: 18px; font-style: normal; line-height: 1.7; }
.location-copy p { max-width: 36rem; margin: 16px 0 0; color: var(--muted); }
.contact-map {
  min-height: 300px;
  display: grid;
  place-items: center;
  padding: 32px;
  border-radius: var(--radius-card);
  background: #171b19;
  color: #e8ecea;
  text-align: center;
}
.contact-map strong { display: block; margin-bottom: 12px; font-family: var(--font-display); font-size: 20px; color: #fff; }
.contact-map p { margin: 0; color: #c9cfcc; line-height: 1.7; max-width: 28rem; }
.about-visual {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: #e8ebe7;
  aspect-ratio: 4 / 3;
  width: 100%;
  max-height: none;
}
.about-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.about-page {
  display: block;
}
.about-main {
  padding-block: 56px 64px;
  background: var(--surface);
}
.about-stage {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(360px, 5fr);
  align-items: center;
  gap: 48px;
}
.about-copy .block-title {
  margin: 0 0 18px;
  font-size: 2rem;
}
.about-copy .brand-note {
  margin: 0 0 8px;
}
.about-lead {
  margin: 0 0 22px;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.7;
  text-wrap: pretty;
}
.about-copy .company-statement {
  max-width: none;
  font-size: 16px;
  line-height: 1.8;
}
.about-copy .company-statement p {
  margin: 0;
}
.about-copy .company-statement p + p {
  margin-top: 14px;
}
.about-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
  margin-top: 28px;
}
.about-profile { background: #eef1ed; }
.about-profile-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  align-items: start;
  gap: 72px;
}
.about-profile-heading .block-title { margin-bottom: 16px; }
.about-profile-heading p {
  max-width: 34rem;
  margin: 0;
  color: var(--muted);
  text-wrap: pretty;
}
.about-profile-list { border-top: 1px solid var(--ink); }
.about-profile-list article {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 28px;
  padding-block: 24px;
  border-bottom: 1px solid var(--line);
}
.about-profile-list h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.5;
}
.about-profile-list p {
  max-width: 45rem;
  margin: 0;
  color: var(--muted);
  text-wrap: pretty;
}
.about-cooperation { padding-block: 52px; }
.about-cooperation-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 64px;
}
.about-cooperation .block-title { margin-bottom: 10px; }
.about-cooperation p {
  max-width: 44rem;
  margin: 0;
  color: var(--muted);
}
.about-cooperation-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  flex: 0 0 auto;
}
.about-cooperation-links a {
  color: var(--primary);
  font-weight: 700;
  text-underline-offset: 5px;
}
.about-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-block: 1px solid var(--ink);
  background: var(--surface);
}
.about-points > div {
  min-height: 100px;
  padding: 28px 24px;
}
.about-points > div + div { border-left: 1px solid var(--line); }
.about-points strong { display: block; margin-bottom: 6px; font-family: var(--font-display); font-size: 17px; }
.about-points p { margin: 0; color: var(--muted); font-size: 14px; }
.page-shell { padding-bottom: 0; }
.home-company { padding-block: 64px 80px; background: var(--surface); }
.home-section-lead {
  max-width: 40rem;
  margin: -8px 0 28px;
  color: var(--muted);
  font-size: 17px;
  text-wrap: pretty;
}
.home-section-lead-tight { margin-bottom: 0; }
.home-categories { padding-bottom: 72px; }
.category-showcase {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.category-card {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
  transition: border-color 150ms ease-out, box-shadow 150ms ease-out;
}
.category-card:hover { border-color: var(--primary); box-shadow: 0 8px 24px rgba(23, 27, 25, 0.08); }
.category-card-image { aspect-ratio: 4 / 3; overflow: hidden; background: #e8ebe7; }
.category-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 180ms ease-out; }
.category-card:hover .category-card-image img { transform: scale(1.03); }
.category-card-body { padding: 18px; }
.category-card-body h3 { margin: 0 0 6px; font-family: var(--font-display); font-size: 20px; }
.category-card-body p { margin: 0; color: var(--muted); font-size: 14px; }
.home-catalog-entry { padding-block: 0 0; background: #eef1ed; }
.home-catalog-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding-block: 48px;
}
.home-catalog-panel .block-title { margin-bottom: 10px; }
.home-points-wrap { margin-top: 48px; }
.home-company .split-2 { margin-bottom: 0; }
.service-rail .rail-row { min-height: 80px; }
.service-main { padding-bottom: 80px; }
.hero-lead { max-width: 34rem; }

@media (max-width: 1040px) {
  .desktop-nav, .header-cta { display: none; }
  .header-inner { grid-template-columns: 1fr auto; }
  .mobile-nav { display: block; position: relative; }
  .mobile-nav summary { min-width: 72px; min-height: 44px; display: grid; place-items: center; border: 1px solid #89928d; border-radius: var(--radius-control); font-weight: 700; list-style: none; }
  .mobile-nav summary::-webkit-details-marker { display: none; }
  .mobile-nav nav { position: absolute; right: 0; top: 52px; width: min(300px, calc(100vw - 32px)); display: block; padding: 10px; border: 1px solid var(--line); background: #fff; box-shadow: 0 12px 24px rgba(23, 27, 25, 0.14); opacity: 0; visibility: hidden; pointer-events: none; transform: translateY(-6px) scale(0.98); transform-origin: top right; transition: opacity var(--motion-fast) ease-out, transform var(--motion-state) var(--ease-out-quart), visibility 0s linear var(--motion-state); }
  .mobile-nav[open] nav { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0) scale(1); transition-delay: 0s; }
  .mobile-nav.is-closing[open] nav { opacity: 0; visibility: visible; pointer-events: none; transform: translateY(-6px) scale(0.98); }
  .mobile-nav nav a { min-height: 48px; display: flex; align-items: center; padding: 10px 12px; border-bottom: 1px solid var(--line); text-decoration: none; }
  .mobile-nav nav a:last-child { border-bottom: 0; }
  .mobile-nav nav a[aria-current="page"] { color: var(--primary); font-weight: 700; }
  .summary-grid { grid-template-columns: repeat(3, 1fr); padding-block: 24px; }
  .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .filter-bar { grid-template-columns: repeat(2, 1fr); }
  .filter-search { grid-column: 1 / -1; }
  .service-layout, .company-layout, .contact-layout { gap: 56px; }
  .detail-hero { grid-template-columns: 1fr 1fr; gap: 36px; }
  .detail-actions { grid-template-columns: 1fr; }
  .home-company-grid, .content-grid, .faq-layout, .about-overview-grid, .archive-evidence-heading, .inquiry-guide-grid { gap: 56px; }
  .process-layout { gap: 56px; }
  .archive-stats { grid-template-columns: repeat(2, 1fr); }
  .split-2, .contact-stage, .location-band { gap: 40px; }
  .about-stage { grid-template-columns: 1fr; gap: 36px; }
  .about-visual { aspect-ratio: 16 / 9; }
  .about-copy { max-width: 46rem; }
  .about-profile-layout { gap: 48px; }
  .steps-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps-row li:nth-child(odd) { border-left: 0; }
  .steps-row li:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .category-showcase { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  :root { --header-height: 68px; }
  .container { width: min(calc(100% - 32px), var(--container)); }
  .brand-cn { font-size: 18px; }
  .hero { min-height: 590px; }
  .hero-scrim { background: rgba(10, 18, 14, 0.5); }
  .hero-content { padding-block: 96px 58px; }
  .hero h1 { font-size: 2.75rem; }
  .hero-lead { font-size: 18px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .summary-grid { grid-template-columns: 1fr; gap: 10px; }
  .section { padding-block: 56px; }
  .heading-split, .page-intro-grid, .service-layout, .company-layout, .contact-layout, .source-record { grid-template-columns: 1fr; gap: 28px; }
  .section-heading h2, .company-layout h2, .contact-layout h2, .page-state h1 { font-size: 1.5rem; }
  .section-heading { margin-bottom: 30px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 12px; }
  .product-card-body { padding: 14px; }
  .product-card h3 { font-size: 16px; }
  .product-card-spec { font-size: 13px; }
  .category-row { grid-template-columns: 1fr auto; gap: 14px; padding-block: 15px; }
  .category-row b { grid-column: 1 / -1; }
  .service-steps li { grid-template-columns: 36px 1fr; gap: 14px; }
  .contact-details > * { grid-template-columns: 1fr; gap: 4px; padding-block: 15px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .page-intro { padding-block: 52px; }
  .page-intro h1 { font-size: 1.75rem; }
  .filter-bar { grid-template-columns: 1fr; padding: 16px; }
  .filter-search { grid-column: auto; }
  .reset-button { width: 100%; }
  .result-toolbar { align-items: flex-start; flex-direction: column; justify-content: center; gap: 0; }
  .detail-hero { grid-template-columns: 1fr; gap: 28px; padding-bottom: 56px; }
  .detail-primary-image { position: static; }
  .detail-summary h1 { font-size: 1.75rem; }
  .gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .image-viewer-stage { padding-inline: 52px; }
  .image-viewer-image-wrap, .image-viewer-image { max-width: calc(100vw - 112px); max-height: calc(100dvh - 132px); }
  .image-viewer-prev { left: 6px; }
  .image-viewer-next { right: 6px; }
  .image-magnifier { width: 136px; }
  .image-archive { padding-block: 64px; }
  .home-entry-list > a { grid-template-columns: 1fr; gap: 18px; }
  .home-entry-list > a > strong { white-space: normal; }
  .home-company-grid, .content-grid, .faq-layout, .about-overview-grid, .archive-evidence-heading, .inquiry-guide-grid, .process-layout { grid-template-columns: 1fr; gap: 34px; }
  .home-company h2, .content-grid h2, .faq-layout h2, .about-overview h2, .archive-evidence h2, .inquiry-guide h2 { font-size: 1.5rem; }
  .service-detail-list article { grid-template-columns: 1fr; gap: 8px; }
  .check-list li, .management-list li { grid-template-columns: 1fr; gap: 4px; }
  .cta-band-inner { align-items: flex-start; flex-direction: column; }
  .archive-stats { grid-template-columns: 1fr 1fr; }
  .archive-image-grid { grid-template-columns: 1fr; }
  .data-table > div { grid-template-columns: 1fr 90px 88px; gap: 12px; }
  .contact-channel-list > a, .contact-channel-list > div.contact-address { grid-template-columns: 1fr; gap: 4px; padding-block: 18px; }
  .contact-channel-list > div.contact-address b { grid-column: 1; }
  .contact-channel-list b { margin-top: 6px; }
  .site-footer nav { flex-wrap: wrap; }
  .page-head { padding-block: 40px; }
  .page-head h1 { font-size: 1.75rem; }
  .block { padding-block: 56px; }
  .block-title, .action-panel h2, .inquiry-panel h2, .location-band h2 { font-size: 1.5rem; }
  .split-2, .contact-stage, .location-band { grid-template-columns: 1fr; gap: 32px; }
  .about-stage { min-height: 0; }
  .about-main { padding-block: 32px 40px; }
  .about-visual { aspect-ratio: 4 / 3; }
  .about-copy .block-title { font-size: 1.625rem; }
  .about-lead { font-size: 16px; }
  .about-copy .company-statement { font-size: 15px; }
  .about-profile-layout { grid-template-columns: 1fr; gap: 30px; }
  .about-profile-list article { grid-template-columns: 1fr; gap: 6px; padding-block: 20px; }
  .about-cooperation { padding-block: 44px; }
  .about-cooperation-inner { align-items: flex-start; flex-direction: column; gap: 28px; }
  .about-cooperation-links { gap: 14px; }
  .contact-stage { min-height: 0; }
  .inquiry-panel { height: auto; }
  .about-points { grid-template-columns: 1fr; }
  .about-points > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .company-statement { font-size: 16px; }
  .rail-row { grid-template-columns: 1fr; gap: 5px; padding-block: 18px; }
  .steps-row { grid-template-columns: 1fr; }
  .steps-row li { min-height: 0; padding: 22px 0; }
  .steps-row li + li, .steps-row li:nth-child(odd) { border-left: 0; }
  .steps-row li:nth-child(n + 2) { border-top: 1px solid var(--line); }
  .steps-row strong { margin-bottom: 16px; }
  .action-panel { align-items: flex-start; flex-direction: column; gap: 24px; }
  .metric-row > div { min-height: 96px; align-items: flex-start; flex-direction: column; gap: 2px; padding: 22px 16px; }
  .metric-row strong { font-size: 1.625rem; }
  .mosaic-3 { grid-template-columns: 1fr; gap: 28px; }
  .location-band { align-items: start; }
  .contact-map { min-height: 260px; }
  .category-showcase { grid-template-columns: 1fr; }
  .home-catalog-panel { align-items: flex-start; flex-direction: column; gap: 24px; }
}

@media (max-width: 430px) {
  .brand-en { display: none; }
  .hero h1 { font-size: 2.5rem; }
  .product-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .spec-list div { grid-template-columns: 92px 1fr; gap: 12px; }
  .archive-stats { grid-template-columns: 1fr; }
  .data-table > div { grid-template-columns: 1fr auto; }
  .data-table > div > :last-child { grid-column: 1 / -1; }
  .message-template { padding: 20px; }
  .message-template dl > div { grid-template-columns: 1fr; gap: 2px; }
  .panel { padding: 22px; }
  .metric-row { grid-template-columns: 1fr; }
  .metric-row > div + div { border-top: 1px solid var(--line); border-left: 0; }
  .metric-row > div { min-height: 76px; align-items: baseline; flex-direction: row; }
  .category-table > div { grid-template-columns: minmax(0, 1fr) 72px 58px; gap: 10px; }
  .inquiry-panel dl > div { grid-template-columns: 72px minmax(0, 1fr); gap: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  ::view-transition-group(*), ::view-transition-old(*), ::view-transition-new(*) { animation: none !important; }
}

@view-transition { navigation: auto; }

.result-toolbar { view-transition-name: catalog-toolbar; }
.catalog-grid { view-transition-name: catalog-results; }
.pagination { view-transition-name: catalog-pagination; }

html.catalog-transitioning::view-transition-old(root),
html.catalog-transitioning::view-transition-new(root) { animation: none; }

::view-transition-old(catalog-toolbar),
::view-transition-old(catalog-results),
::view-transition-old(catalog-pagination) { animation: catalog-leave 100ms ease-in both; }

::view-transition-new(catalog-toolbar),
::view-transition-new(catalog-results),
::view-transition-new(catalog-pagination) { animation: catalog-enter 220ms var(--ease-out-quart) both; }

::view-transition-old(root) { animation: page-leave 120ms ease-in both; }
::view-transition-new(root) { animation: page-enter 220ms var(--ease-out-quint) both; }

@keyframes catalog-leave {
  to { opacity: 0; transform: translateY(-4px); }
}

@keyframes catalog-enter {
  from { opacity: 0; transform: translateY(8px); }
}

@keyframes page-leave {
  to { opacity: 0; transform: translateY(-3px); }
}

@keyframes page-enter {
  from { opacity: 0; transform: translateY(6px); }
}