:root {
  --ink: #17130d;
  --ink-2: #332b20;
  --muted: #746958;
  --line: #ebe2d1;
  --line-strong: #dcccac;
  --paper: #ffffff;
  --mist: #fbf7ee;
  --mist-2: #f6eddc;
  --teal: #a86d16;
  --teal-dark: #87530a;
  --amber: #f0c86e;
  --amber-soft: #fff2ce;
  --shadow: 0 22px 60px rgba(50, 37, 18, .11);
  --shadow-sm: 0 10px 28px rgba(50, 37, 18, .09);
  --radius: 20px;
  --page-pad: clamp(22px, 3.2vw, 64px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  overflow-x: clip;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
html[data-build="cn-internal-review"] body::before {
  content: "中文内部审稿版 · 禁止发布";
  position: fixed;
  z-index: 190;
  left: 12px;
  top: 4px;
  max-width: calc(100vw - 24px);
  padding: 4px 8px;
  border: 1px solid rgba(240, 200, 110, .72);
  border-radius: 999px;
  background: rgba(23, 19, 13, .88);
  color: #fff2ce;
  box-shadow: 0 4px 12px rgba(23, 19, 13, .14);
  font-size: 9px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: .05em;
  white-space: nowrap;
  pointer-events: none;
  backdrop-filter: blur(8px);
}
html[data-build="cn-internal-review"] .site-footer::after {
  content: "Internal review only / 禁止发布";
  display: block;
  padding: 12px var(--page-pad);
  border-top: 1px solid #304640;
  background: #100d08;
  color: #dcccac;
  font-size: 11px;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: .08em;
  text-align: center;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
.skip-link {
  position: fixed;
  z-index: 200;
  left: 18px;
  top: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  transform: translateY(-160%);
  transition: transform .18s ease;
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid rgba(245,158,11,.95); outline-offset: 3px; }
.btn:focus-visible, .menu-toggle:focus-visible { outline-color: var(--amber); }
.container { width: 100%; max-width: none; margin: 0; padding-left: var(--page-pad); padding-right: var(--page-pad); }
.section { padding: 92px 0; }
.section-sm { padding: 62px 0; }
.section-mist { background: var(--mist); }
.section-dark { background: var(--ink); color: #fff; }
.grid-bg {
  background-image:
    linear-gradient(rgba(15,118,110,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,118,110,.055) 1px, transparent 1px);
  background-size: 48px 48px;
}
.eyebrow {
  margin: 0 0 16px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.section-dark .eyebrow { color: #f0c86e; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 22px; font-size: clamp(44px, 5.2vw, 72px); line-height: .99; letter-spacing: -.055em; }
h2 { margin-bottom: 18px; font-size: clamp(34px, 4vw, 52px); line-height: 1.03; letter-spacing: -.045em; }
h3 { margin-bottom: 10px; font-size: 22px; line-height: 1.18; letter-spacing: -.02em; }
p { color: var(--muted); font-size: 16px; line-height: 1.7; }
html[lang="zh-CN"] h1,
html[lang="zh-CN"] h2,
html[lang="zh-CN"] h3 { letter-spacing: -.035em; }
html[lang="zh-CN"] h1 { line-height: 1.08; }
html[lang="zh-CN"] .hero-copy h1 { font-size: clamp(46px, 4.35vw, 70px); }
html[lang="zh-CN"] .inner-hero h1 { font-size: clamp(40px, 4.4vw, 62px); }
html[lang="zh-CN"] .hero-grid { grid-template-columns: 1.06fr .94fr; }
.section-dark p { color: #d9cebd; }
.section-dark .product-card { color: var(--ink); }
.section-dark .product-card h3 { color: var(--ink); }
.section-dark .product-card p { color: var(--muted); }
.lead { max-width: 700px; font-size: 19px; line-height: 1.65; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 36px; margin-bottom: 42px; }
.section-head > div:first-child { max-width: 760px; }
.section-head p { max-width: 470px; margin-bottom: 4px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--teal); font-weight: 800; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.btn {
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  background: var(--teal);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); background: var(--teal-dark); box-shadow: 0 12px 26px rgba(168,109,22,.2); }
.btn-outline { border-color: var(--line-strong); background: rgba(255,255,255,.86); color: var(--ink); }
.btn-outline:hover { border-color: var(--teal); background: #fff; color: var(--teal); box-shadow: none; }
.btn-amber { background: var(--amber); color: #2e2410; }
.btn-amber:hover { background: #e68d00; box-shadow: 0 12px 26px rgba(245,158,11,.18); }
.btn-small { min-height: 42px; padding: 0 17px; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; }

.topbar { background: var(--ink); color: #dce9e6; font-size: 12px; }
.topbar .container { min-height: 34px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.topbar strong { color: #fff; }
.topbar a { color: #8adbd2; }
.site-header {
  position: relative;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(199,217,212,.78);
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(14px);
}
.nav-wrap { min-height: 86px; display: flex; align-items: center; gap: 34px; }
.logo { flex: 0 0 auto; }
.logo img { width: auto; height: 58px; }
.main-nav { margin-left: auto; display: flex; align-items: center; gap: 26px; }
.main-nav a { position: relative; padding: 29px 0 27px; color: #304a46; font-size: 14px; font-weight: 700; }
.main-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 19px; height: 2px; background: var(--teal); transition: right .2s ease; }
.main-nav a:hover::after, .main-nav a.active::after { right: 0; }
.nav-actions { display: flex; gap: 9px; }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 10px; background: #fff; font-size: 22px; }

.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); background: linear-gradient(104deg,#fff 0%,#f9fcfb 43%,#edf5f2 100%); }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: linear-gradient(rgba(15,118,110,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(15,118,110,.045) 1px,transparent 1px); background-size: 54px 54px; mask-image: linear-gradient(90deg, transparent, #000 55%); }
.hero-grid { min-height: max(650px, calc(100svh - 86px - 108px)); display: grid; grid-template-columns: 1.01fr .99fr; align-items: center; }
.hero > .container { padding-right: 0; }
.hero-copy { position: relative; z-index: 2; align-self: stretch; padding: clamp(46px,6.2vh,72px) 48px clamp(42px,5.4vh,64px) 0; display: flex; flex-direction: column; justify-content: center; }
.hero-copy h1 span { color: var(--teal); }
.hero-copy .lead { margin-bottom: 32px; max-width: 690px; font-size: 20px; line-height: 1.68; }
.hero-badge { align-self: flex-start; display: inline-flex; align-items: center; gap: 10px; margin-bottom: 26px; padding: 9px 13px; border: 1px solid var(--line-strong); border-radius: 999px; background: rgba(255,255,255,.76); color: var(--ink-2); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero-badge i { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 5px rgba(245,158,11,.16); }
.hero-note { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 22px; color: var(--ink-2); font-size: 14px; font-weight: 650; }
.hero-note span { display: flex; align-items: center; gap: 8px; }
.hero-note span::before { content: "✓"; width: 19px; height: 19px; display: grid; place-items: center; border-radius: 50%; background: var(--mist-2); color: var(--teal); font-weight: 900; }
.hero-info-rows { display: grid; gap: 11px; margin-top: 32px; max-width: 730px; }
.hero-info-row { display: grid; grid-template-columns: 82px 1fr; align-items: start; gap: 14px; }
.hero-info-row > b { padding-top: 9px; color: var(--ink); font-size: 13px; }
.hero-info-row > div { display: flex; flex-wrap: wrap; gap: 7px; }
.hero-info-row span { padding: 8px 13px; border: 1px solid var(--line-strong); border-radius: 7px; background: rgba(255,255,255,.9); color: var(--ink-2); font-size: 13px; font-weight: 750; box-shadow: 0 5px 16px rgba(77,50,9,.04); }
.hero-visual { position: relative; align-self: stretch; min-height: max(650px, calc(100svh - 86px - 108px)); }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; object-position: 64% center; }
.hero-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg,#f9fcfb 0%,transparent 23%); }
.hero-float { position: absolute; z-index: 3; right: 28px; bottom: 30px; width: 265px; padding: 18px; border: 1px solid rgba(255,255,255,.8); border-radius: 16px; background: rgba(23,43,41,.9); color: #fff; box-shadow: var(--shadow); backdrop-filter: blur(10px); }
.hero-float b { display: block; margin-bottom: 6px; font-size: 14px; }
.hero-float span { color: #c9d8d4; font-size: 12px; line-height: 1.55; }

.proof-strip { border-bottom: 1px solid #2e281f; background: var(--ink); color: #fff; }
.proof-strip > .container { padding-left: 0; padding-right: 0; }
.proof-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.proof-item { min-height: 112px; padding: 20px clamp(22px,2.45vw,46px); border-right: 1px solid rgba(240,200,110,.22); display: flex; gap: 16px; align-items: center; }
.proof-item > strong { min-width: 92px; color: var(--amber); font-size: clamp(25px,1.85vw,34px); line-height: 1; letter-spacing: -.045em; white-space: nowrap; }
.proof-item b { display: block; color: #fff; font-size: 17px; line-height: 1.2; }
.proof-item span { display: block; margin-top: 8px; color: #c8beaf; font-size: 13px; line-height: 1.4; }
.proof-icon strong { font-size: 22px; line-height: 1; }
.proof-icon small { margin-left: 1px; font-size: 10px; }
.proof-item:first-child { border-left: 1px solid var(--line); }
.proof-icon { width: 40px; height: 40px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 11px; background: var(--mist-2); color: var(--teal); font-weight: 900; }
.proof-item b { margin-bottom: 3px; }

.path-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.path-card { position: relative; min-height: 315px; padding: 34px; overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
.path-card::after { content: attr(data-no); position: absolute; right: 24px; top: 18px; color: #dfeae7; font-size: 72px; font-weight: 900; letter-spacing: -.08em; }
.path-card.accent { background: var(--ink); color: #fff; }
.path-card.accent::after { color: rgba(255,255,255,.09); }
.path-card h3 { position: relative; z-index: 1; max-width: 430px; margin-top: 50px; font-size: 29px; }
.path-card p { position: relative; z-index: 1; max-width: 500px; }
.path-card.accent p { color: #bed0cc; }
.chip-row { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 26px; }
.chip { padding: 8px 11px; border: 1px solid var(--line); border-radius: 8px; background: var(--mist); color: var(--ink-2); font-size: 12px; font-weight: 700; }
.accent .chip { border-color: #61523c; background: #332b20; color: #f4ead7; }

.card-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.product-card { padding: 28px; border: 1px solid var(--line); border-radius: 16px; background: #fff; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.product-card:hover { transform: translateY(-5px); border-color: #9dc5bd; box-shadow: var(--shadow-sm); }
.product-card .num { width: 42px; height: 42px; display: grid; place-items: center; margin-bottom: 48px; border-radius: 11px; background: var(--mist-2); color: var(--teal); font-size: 12px; font-weight: 900; }
.product-card p { min-height: 82px; font-size: 14px; }

.product-catalog-head { align-items: end; }
.product-catalog-head > div > p:last-child { max-width: 720px; margin: 14px 0 0; }
.catalog-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.catalog-card { position: relative; min-height: 360px; padding: 0 36px 36px; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 20px; background: #fff; box-shadow: var(--shadow-sm); }
.catalog-card::after { content: ""; position: absolute; width: 250px; height: 250px; right: -110px; bottom: -150px; border: 44px solid rgba(15,118,110,.07); border-radius: 50%; }
.catalog-card-condensation { background: #fffaf1; border-color: #ead8b4; }
.catalog-card-condensation::after { border-color: rgba(184,111,12,.09); }
.catalog-thumb { width: calc(100% + 72px); height: 220px; margin: 0 -36px 28px; display: block; object-fit: cover; }
.catalog-card-top { position: relative; z-index: 1; display: flex; align-items: center; gap: 12px; margin-bottom: 30px; }
.catalog-index { min-width: 48px; height: 48px; display: grid; place-items: center; border-radius: 12px; background: var(--ink); color: var(--amber); font-size: 13px; font-weight: 900; }
.catalog-type { color: var(--teal); font-size: 12px; font-weight: 900; letter-spacing: .11em; }
.catalog-card-condensation .catalog-type { color: #9a5b08; }
.catalog-card h3 { position: relative; z-index: 1; margin-bottom: 14px; font-size: 31px; }
.catalog-card > p { position: relative; z-index: 1; min-height: 66px; max-width: 610px; }
.catalog-meta { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 30px; }
.catalog-meta span { padding: 8px 11px; border: 1px solid var(--line); border-radius: 7px; background: rgba(255,255,255,.78); color: var(--ink-2); font-size: 12px; font-weight: 800; }
.buying-filter { margin-top: 20px; padding: 26px 28px; border-radius: 16px; background: var(--ink); color: #fff; }
.buying-filter-title { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.buying-filter-title span { color: var(--amber); font-size: 12px; font-weight: 900; letter-spacing: .1em; }
.buying-filter-title b { font-size: 14px; }
.buying-filter-items { display: grid; grid-template-columns: repeat(7,1fr); gap: 8px; }
.buying-filter-items a { min-height: 48px; padding: 10px; display: grid; place-items: center; border: 1px solid #455b57; border-radius: 8px; color: #dce8e5; font-size: 12px; font-weight: 750; text-align: center; }
.buying-filter-items a:hover { border-color: var(--amber); color: #fff; }
.product-family-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: start; }
.product-family-intro .catalog-card-top { margin-bottom: 36px; }
.product-family-intro h2 { margin-bottom: 20px; }
.family-detail { padding: 34px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-sm); }
.family-detail h3 { margin-bottom: 22px; }
.family-application-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.family-application-list > div { min-height: 118px; padding: 20px; border: 1px solid var(--line); border-radius: 11px; background: var(--mist); }
.family-application-list b, .family-application-list span { display: block; }
.family-application-list span { margin-top: 8px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.catalog-note { margin: 20px 0 0; padding-top: 18px; border-top: 1px solid var(--line); font-size: 12px; }
.hero-panel a { color: inherit; }
.product-quick-nav {
  padding: 26px;
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  background: rgba(255,255,255,.92);
  box-shadow: var(--shadow-sm);
}
.product-quick-nav > b { display: block; margin-bottom: 14px; font-size: 15px; }
.product-quick-nav > div { display: grid; gap: 9px; }
.product-quick-nav a { min-height: 72px; padding: 13px 15px; display: grid; grid-template-columns: 34px minmax(0,1fr) 32px; grid-template-rows: auto auto; align-items: center; column-gap: 12px; border: 1px solid var(--line); border-radius: 11px; background: #fff; transition: transform .2s ease,border-color .2s ease,box-shadow .2s ease; }
.product-quick-nav a:hover { transform: translateX(4px); border-color: var(--teal); box-shadow: var(--shadow-sm); }
.product-quick-nav a > span { grid-row: 1 / 3; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 9px; background: var(--mist-2); color: var(--teal); font-size: 11px; font-weight: 900; }
.product-quick-nav strong { font-size: 16px; line-height: 1.25; }
.product-quick-nav small { color: var(--muted); font-size: 11px; }
.product-quick-nav i { grid-column: 3; grid-row: 1 / 3; color: var(--teal); font-size: 20px; font-style: normal; }

.application-hero-grid { grid-template-columns: minmax(0,.86fr) minmax(620px,1.14fr); align-items: center; }
.application-visual-nav { display: grid; gap: 12px; }
.application-visual-nav a { overflow: hidden; min-height: 132px; display: grid; grid-template-columns: 178px minmax(0,1fr) 38px; align-items: center; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.94); box-shadow: var(--shadow-sm); transition: transform .2s ease,border-color .2s ease; }
.application-visual-nav a:hover { transform: translateX(4px); border-color: var(--teal); }
.application-visual-nav img { width: 100%; height: 132px; object-fit: cover; }
.application-visual-nav span { padding: 18px 20px; }
.application-visual-nav b,.application-visual-nav small { display: block; }
.application-visual-nav b { font-size: 19px; line-height: 1.25; }
.application-visual-nav small { margin-top: 8px; color: var(--muted); font-size: 12px; }
.application-visual-nav i { color: var(--teal); font-size: 22px; font-style: normal; }
.filter-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.filter-grid article { min-height: 220px; padding: 26px; border: 1px solid var(--line); border-radius: 15px; background: #fff; }
.filter-grid article > span { display: block; margin-bottom: 38px; color: var(--teal); font-size: 13px; font-weight: 900; letter-spacing: .1em; }
.filter-grid article p { font-size: 13px; }
.filter-grid .filter-cta { border-color: #6c5b42; background: var(--ink); color: #fff; }
.filter-grid .filter-cta > span { color: var(--amber); }
.filter-grid .filter-cta p { color: #bdd0cb; }
.selection-logic { margin: 0 0 24px; padding: 24px 26px 20px; border: 1px solid var(--line-strong); border-radius: 16px; background: linear-gradient(135deg,#f7fbfa,#edf5f2); }
.selection-flow { display: grid; grid-template-columns: 1fr 28px 1fr 28px 1fr 28px 1fr 28px 1fr; align-items: center; gap: 6px; }
.selection-flow article { min-height: 108px; padding: 17px 16px; display: grid; align-content: center; gap: 5px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.selection-flow article > span { color: var(--teal); font-size: 11px; font-weight: 900; letter-spacing: .1em; }
.selection-flow article > b { font-size: 16px; }
.selection-flow article > small { color: var(--muted); font-size: 11px; line-height: 1.4; }
.selection-flow > i { color: var(--teal); font-size: 21px; font-style: normal; text-align: center; }
.selection-caption { margin: 16px 0 0; color: var(--muted); font-size: 11px; }
.application-map-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.application-map-grid a { min-height: 160px; padding: 26px; display: flex; flex-direction: column; justify-content: flex-end; border: 1px solid var(--line); border-radius: 15px; background: #fff; color: var(--ink); box-shadow: var(--shadow-sm); }
.application-map-grid b, .application-map-grid span { display: block; }
.application-map-grid b { font-size: 18px; }
.application-map-grid span { margin-top: 9px; color: var(--muted); font-size: 13px; }
.product-proof-section { padding-top: 0; }
.product-proof-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.product-visual-proof { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-sm); }
.product-visual-proof figure { margin: 0; }
.product-visual-proof img { display: block; width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.product-visual-proof figcaption { padding: 22px 24px; display: flex; align-items: center; justify-content: space-between; gap: 18px; border-top: 1px solid var(--line); }
.product-visual-proof figcaption b, .product-visual-proof figcaption span { display: block; }
.product-visual-proof figcaption b { color: var(--ink); font-size: 17px; }
.product-visual-proof figcaption span { color: var(--muted); font-size: 12px; text-align: right; }
.evidence-row { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--line); background: var(--mist); }
.evidence-row span { min-height: 78px; padding: 16px 18px; border-right: 1px solid var(--line); color: var(--muted); font-size: 11px; line-height: 1.45; }
.evidence-row span:last-child { border-right: 0; }
.evidence-row b { display: block; margin-bottom: 5px; color: var(--teal); font-size: 11px; }
.proof-visual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.proof-visual-grid article { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-sm); }
.proof-visual-grid img { display: block; width: 100%; aspect-ratio: 16 / 7; object-fit: cover; }
.proof-visual-grid article > div { padding: 24px; }
.proof-visual-grid b, .proof-visual-grid span, .proof-visual-grid small { display: block; }
.proof-visual-grid b { font-size: 20px; }
.proof-visual-grid span { margin-top: 8px; color: var(--muted); font-size: 13px; }
.proof-visual-grid small { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--teal); font-size: 11px; font-weight: 800; }
.evidence-board-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.evidence-board-grid a { min-height: 230px; padding: 28px; border: 1px solid var(--line); border-radius: 16px; background: #fff; color: var(--ink); box-shadow: var(--shadow-sm); }
.evidence-board-grid strong, .evidence-board-grid b, .evidence-board-grid span { display: block; }
.evidence-board-grid strong { margin-bottom: 52px; color: var(--amber); font-size: 30px; }
.evidence-board-grid b { font-size: 18px; }
.evidence-board-grid span { margin-top: 9px; color: var(--muted); font-size: 13px; line-height: 1.6; }

.selector { position: relative; overflow: hidden; padding: 42px; border-radius: var(--radius); background: var(--teal); color: #fff; }
.selector::after { content: ""; position: absolute; width: 330px; height: 330px; right: -90px; top: -150px; border: 55px solid rgba(255,255,255,.08); border-radius: 50%; }
.selector-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 48px; }
.selector h2 { margin-bottom: 12px; }
.selector p { color: #d6eeea; }
.question-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.question { padding: 16px; border: 1px solid rgba(255,255,255,.2); border-radius: 11px; background: rgba(255,255,255,.09); }
.question span { display: block; margin-bottom: 7px; color: #aee5de; font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.question b { font-size: 13px; }

.application-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.application-card { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-sm); }
.application-photo { height: 250px; background-repeat: no-repeat; background-size: cover; background-position: center; }
.technical-process-figure { margin: 0; }
.technical-process-figure img { display: block; width: 100%; min-height: 430px; aspect-ratio: 3 / 2; object-fit: cover; object-position: center; }
.technical-process-figure figcaption { padding: 12px 16px; border-top: 1px solid var(--line); color: var(--muted); background: #fff; font-size: 12px; }
.application-body { padding: 26px; }
.application-body p { min-height: 74px; font-size: 14px; }

@media (min-width: 1400px) {
  html[lang="zh-CN"] .hero-grid { grid-template-columns: .88fr 1.12fr; }
  .hero-grid, .hero-visual { height: calc(100vh - 86px - 112px); min-height: 660px; max-height: 760px; }
  .hero-copy { padding-top: 38px; padding-bottom: 38px; }
  .hero-visual img { object-fit: cover; object-position: 56% center; }
  .hero-visual::after { background: linear-gradient(90deg,#f9fcfb 0%,rgba(249,252,251,.7) 10%,transparent 28%); }
  .application-hero { padding-top: 44px; padding-bottom: 44px; }
  .product-quick-nav a { min-height: 68px; }
}

.process-grid { position: relative; display: grid; grid-template-columns: repeat(5,1fr); gap: 12px; }
.process-grid::before { content: ""; position: absolute; left: 9%; right: 9%; top: 27px; height: 1px; background: #5c746f; }
.application-next-step { margin-top: 22px; padding: 18px 20px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 18px; border: 1px solid #4c625d; border-radius: 12px; background: #1e322e; }
.application-next-step b { color: var(--amber); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; }
.application-next-step span { color: #d4dfdc; font-size: 13px; }
.resource-route { margin-bottom: 26px; display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; }
.resource-route article { min-height: 198px; padding: 24px; display: grid; grid-template-rows: auto 1fr auto; gap: 16px; border: 1px solid #415752; border-radius: 14px; background: #1c302c; }
.resource-route article > span { color: var(--amber); font-size: 12px; font-weight: 900; letter-spacing: .12em; }
.resource-route b { display: block; margin-bottom: 8px; color: #fff; font-size: 18px; }
.resource-route p { margin: 0; color: #aec3bd; font-size: 12px; }
.resource-route em { width: max-content; padding: 6px 9px; border-radius: 999px; background: #2c4b44; color: #c9e4dc; font-size: 10px; font-style: normal; font-weight: 850; }
.resource-route em.planned { background: #4b402a; color: #f3d69c; }
.process-step { position: relative; z-index: 1; padding-right: 14px; }
.process-step .step-no { width: 54px; height: 54px; display: grid; place-items: center; margin-bottom: 22px; border: 1px solid #6b5c45; border-radius: 50%; background: var(--ink); color: #f0c86e; font-size: 12px; font-weight: 900; }
.process-step h3 { font-size: 17px; }
.process-step p { font-size: 13px; }

.feature-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--line); }
.feature { min-height: 245px; padding: 30px; background: #fff; }
.feature strong { display: block; margin-bottom: 25px; color: var(--teal); font-size: 38px; letter-spacing: -.05em; }
.feature p { font-size: 14px; }

.resource-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 16px; }
.resource-card { min-height: 220px; padding: 28px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.resource-card:first-child { background: var(--amber-soft); border-color: #f2d38f; }
.resource-card .tag { display: inline-block; margin-bottom: 38px; padding: 6px 9px; border-radius: 6px; background: rgba(255,255,255,.64); color: var(--ink-2); font-size: 10px; font-weight: 900; letter-spacing: .12em; }

.cta { overflow: hidden; position: relative; padding: 60px; border-radius: 24px; background: var(--ink); color: #fff; }
.cta::after { content: ""; position: absolute; width: 420px; height: 420px; right: -120px; bottom: -230px; border: 70px solid var(--teal); border-radius: 50%; opacity: .55; }
.cta-inner { position: relative; z-index: 1; display: flex; justify-content: space-between; align-items: center; gap: 50px; }
.cta h2 { max-width: 720px; margin-bottom: 12px; }
.cta p { max-width: 680px; margin-bottom: 0; color: #bed0cc; }

/* Homepage decision flow: product -> selection -> proof -> action */
.home-hero .hero-grid { min-height: calc(100vh - 86px); }
.home-hero .hero-copy { padding-top: 54px; padding-bottom: 54px; }
.home-hero .hero-copy .lead { max-width: 760px; margin-bottom: 30px; }
.home-hero .hero-actions { margin-bottom: 30px; }
.home-hero .hero-info-rows { max-width: 640px; margin-top: 0; }
.home-hero-visual { margin: 0; overflow: hidden; }
.home-hero-visual figcaption { position: absolute; z-index: 3; right: 24px; bottom: 22px; max-width: 330px; padding: 10px 13px; border: 1px solid rgba(255,255,255,.7); border-radius: 8px; background: rgba(23,19,13,.78); color: #fff; font-size: 11px; line-height: 1.5; backdrop-filter: blur(8px); }
.decision-heading { display: grid; grid-template-columns: 64px minmax(0,1fr) auto; align-items: end; gap: 24px; margin-bottom: 38px; }
.decision-heading > div { max-width: 880px; }
.decision-heading h2 { margin-bottom: 12px; }
.decision-heading p:last-child { max-width: 760px; margin-bottom: 0; }
.decision-no { width: 56px; height: 56px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--amber); font-size: 13px; font-weight: 900; }
.home-catalog-grid .catalog-card { min-height: 0; }
.visual-disclaimer { margin: 18px 0 0; color: #887b68; font-size: 12px; }
.selection-board { display: grid; grid-template-columns: 1.35fr .65fr; gap: 18px; }
.selection-inputs { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.selection-inputs article { min-height: 250px; padding: 30px; border: 1px solid var(--line-strong); border-radius: 16px; background: #fff; }
.selection-inputs article > span { display: block; margin-bottom: 50px; color: var(--teal); font-size: 14px; font-weight: 900; }
.selection-inputs b { display: block; margin-bottom: 13px; font-size: 20px; }
.selection-inputs p { margin-bottom: 0; font-size: 14px; }
.selection-output { padding: 34px; border-radius: 16px; background: var(--ink); color: #fff; }
.selection-output h3 { margin-bottom: 24px; font-size: 27px; }
.selection-output ol { margin: 0 0 28px; padding-left: 20px; color: #e2d8c7; }
.selection-output li { margin: 11px 0; padding-left: 5px; font-size: 14px; }
.home-proof-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.home-proof-grid article { min-height: 280px; padding: 30px; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: var(--shadow-sm); }
.home-proof-grid strong { display: block; min-height: 52px; margin-bottom: 24px; color: var(--teal); font-size: 32px; letter-spacing: -.04em; }
.home-proof-grid h3 { font-size: 20px; }
.home-proof-grid p { min-height: 72px; font-size: 14px; }
.home-proof-grid span, .home-proof-grid a { display: block; padding-top: 15px; border-top: 1px solid var(--line); color: var(--teal); font-size: 12px; font-weight: 800; }
.proof-boundary { margin-top: 16px; padding: 20px 24px; display: grid; grid-template-columns: 120px repeat(3,1fr); align-items: center; gap: 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--mist); }
.proof-boundary b { color: var(--teal); }
.proof-boundary span { color: var(--ink-2); font-size: 13px; }
.action-grid { display: grid; grid-template-columns: .75fr 1.25fr; align-items: center; gap: 64px; }
.decision-no-dark { margin-bottom: 26px; border: 1px solid #6b5c45; }
.action-grid h2 { max-width: 650px; }
.action-grid p { max-width: 650px; }
.action-options { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.action-options a { min-height: 190px; padding: 26px; display: flex; flex-direction: column; border: 1px solid #5e503b; border-radius: 14px; background: #241e16; transition: transform .2s ease,border-color .2s ease; }
.action-options a:hover { transform: translateY(-4px); border-color: var(--amber); }
.action-options span { margin-bottom: auto; color: var(--amber); font-size: 12px; font-weight: 900; }
.action-options b { margin-bottom: 10px; font-size: 18px; }
.action-options small { color: #c9beae; font-size: 12px; line-height: 1.5; }

/* Homepage business flow: positioning -> trust -> products -> applications -> OEM -> evidence -> resources -> conversion */
.home-page .site-footer { margin-top: 0; }
.home-page .home-hero .hero-grid { height: calc(100vh - 87px - 119px); min-height: 620px; max-height: 702px; grid-template-columns: .9fr 1.1fr; }
.home-page .home-hero .hero-copy { padding: 42px clamp(42px,4vw,76px) 42px 0; }
.home-page .home-hero .hero-copy h1 { max-width: 780px; margin-bottom: 24px; font-size: clamp(48px,4.4vw,72px); }
.home-page .home-hero .hero-copy .lead { max-width: 760px; margin-bottom: 30px; font-size: 19px; }
.home-page .home-hero .hero-actions { margin-bottom: 30px; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; }
.hero-facts > div { min-width: 232px; padding: 13px 16px; display: grid; grid-template-columns: 78px 1fr; gap: 12px; border: 1px solid var(--line-strong); border-radius: 9px; background: rgba(255,255,255,.82); }
.hero-facts dt { color: var(--muted); font-size: 11px; font-weight: 800; }
.hero-facts dd { margin: 0; color: var(--ink); font-size: 13px; font-weight: 850; }
.home-page .home-hero-visual { height: 100%; min-height: 620px; max-height: none; }
.home-page .home-hero-visual img { object-position: 54% center; }
.home-page .home-hero-visual::after { background: linear-gradient(90deg,#f9fcfb 0%,rgba(249,252,251,.58) 9%,transparent 25%); }
.hero-image-label { position: absolute; z-index: 3; left: 42px; bottom: 44px; max-width: 300px; padding: 17px 20px; border: 1px solid rgba(255,255,255,.82); border-radius: 12px; background: rgba(255,255,255,.9); box-shadow: var(--shadow-sm); backdrop-filter: blur(10px); }
.hero-image-label b, .hero-image-label span { display: block; }
.hero-image-label b { color: var(--ink); font-size: 16px; }
.hero-image-label span { margin-top: 6px; color: var(--muted); font-size: 12px; }
.home-page .home-hero-visual figcaption { right: 22px; bottom: 18px; max-width: 250px; padding: 8px 11px; border: 0; background: rgba(23,19,13,.72); font-size: 10px; }

.home-trust { border-bottom: 1px solid #352d21; background: var(--ink); color: #fff; }
.home-trust-grid { padding-left: 0; padding-right: 0; display: grid; grid-template-columns: repeat(4,1fr); }
.home-trust-grid > a { min-height: 118px; padding: 22px clamp(20px,2.6vw,50px); display: flex; align-items: center; gap: 20px; border-right: 1px solid #41382a; transition: background .2s ease; }
.home-trust-grid > a:hover { background: #241e16; }
.home-trust-grid > a:first-child { border-left: 1px solid #41382a; }
.home-trust-grid strong { color: var(--amber); font-size: clamp(24px,1.8vw,34px); letter-spacing: -.04em; white-space: nowrap; }
.home-trust-grid span, .home-trust-grid b, .home-trust-grid small { display: block; }
.home-trust-grid b { font-size: 16px; }
.home-trust-grid small { margin-top: 7px; color: #bdb19f; font-size: 11px; line-height: 1.4; }

@media (min-width: 1081px) and (max-height: 840px) {
  .home-page .home-hero .hero-grid { height: calc(100vh - 87px - 119px); min-height: 514px; max-height: none; }
  .home-page .home-hero .hero-copy { padding-top: 30px; padding-bottom: 30px; }
  .home-page .home-hero .hero-copy h1 { margin-bottom: 18px; font-size: clamp(43px,4vw,61px); }
  .home-page .home-hero .hero-copy .lead { margin-bottom: 22px; font-size: 17px; line-height: 1.56; }
  .home-page .home-hero .hero-actions { margin-bottom: 22px; }
  .home-page .home-hero-visual { min-height: 514px; }
  .hero-image-label { bottom: 36px; }
}

@media (min-width: 1400px) {
  .home-page .home-hero .hero-grid { height: calc(100vh - 87px - 119px); min-height: 620px; max-height: none; }
  .home-page .home-hero-visual { min-height: 620px; }
}

.home-section-head { margin-bottom: 40px; display: grid; grid-template-columns: minmax(0,1.2fr) minmax(340px,.62fr); align-items: end; gap: 80px; }
.home-section-head > div:first-child { max-width: 880px; }
.home-section-head > div:last-child { padding-bottom: 5px; }
.home-section-head h2 { margin-bottom: 0; }
.home-section-head p { margin-bottom: 12px; }
.home-section-head.compact { margin-bottom: 34px; }
.home-family-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.home-family-card { overflow: hidden; display: grid; grid-template-columns: .92fr 1.08fr; border: 1px solid var(--line); border-radius: 20px; background: #fff; box-shadow: var(--shadow-sm); }
.home-family-card figure { position: relative; min-height: 430px; margin: 0; overflow: hidden; background: var(--mist); }
.home-family-card figure img { width: 100%; height: 100%; object-fit: cover; }
.home-family-card figure span { position: absolute; left: 16px; bottom: 14px; padding: 7px 9px; border-radius: 6px; background: rgba(23,19,13,.76); color: #fff; font-size: 10px; }
.home-family-body { padding: 34px 32px; display: flex; flex-direction: column; }
.family-kicker { margin-bottom: 34px; display: flex; justify-content: space-between; align-items: center; gap: 18px; }
.family-kicker span { color: var(--teal); font-size: 11px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.family-kicker b { padding: 6px 9px; border-radius: 6px; background: var(--mist-2); color: var(--ink); font-size: 12px; }
.home-family-body h3 { font-size: 27px; }
.home-family-body p { font-size: 14px; }
.family-fields { margin: auto 0 24px; padding-top: 22px; display: flex; flex-wrap: wrap; gap: 7px; border-top: 1px solid var(--line); }
.family-fields span { padding: 7px 9px; border-radius: 6px; background: var(--mist); color: var(--ink-2); font-size: 11px; font-weight: 750; }
.selection-ribbon { margin-top: 20px; padding: 20px 24px; display: grid; grid-template-columns: 140px repeat(6,1fr) 190px; align-items: center; gap: 8px; border: 1px solid #423828; border-radius: 12px; background: var(--ink); color: #fff; }
.selection-ribbon b { color: var(--amber); font-size: 13px; }
.selection-ribbon span { min-height: 40px; padding: 9px 8px; display: grid; place-items: center; border: 1px solid #4a4030; border-radius: 6px; color: #d9cebd; font-size: 11px; text-align: center; }
.selection-ribbon a { color: #fff; font-size: 12px; font-weight: 850; text-align: right; }

.home-application-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.home-application-grid > a { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-sm); transition: transform .2s ease,box-shadow .2s ease; }
.home-application-grid > a:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.home-application-grid figure { margin: 0; aspect-ratio: 1.55 / 1; overflow: hidden; }
.home-application-grid img { width: 100%; height: 100%; object-fit: cover; }
.home-application-grid > a > div { padding: 27px 28px 29px; }
.home-application-grid span { color: var(--teal); font-size: 11px; font-weight: 900; letter-spacing: .1em; }
.home-application-grid h3 { margin-top: 12px; font-size: 25px; }
.home-application-grid p { min-height: 48px; font-size: 13px; }
.home-application-grid b { color: var(--teal); font-size: 12px; }

.home-oem-panel { padding-top: 58px; padding-bottom: 58px; display: grid; grid-template-columns: .72fr 1.28fr; align-items: center; gap: 58px; border-radius: 0; background: var(--ink); color: #fff; }
.home-oem { padding: 0; background: var(--ink); }
.home-oem-copy { padding-left: 0; }
.home-oem-copy h2 { max-width: 720px; }
.home-oem-copy p:not(.eyebrow) { max-width: 700px; color: #cfc3b1; }
.text-link-light { margin-left: 10px; color: #fff; }
.home-oem-media { display: grid; grid-template-rows: 220px auto; gap: 14px; align-items: stretch; }
.home-oem-media figure { position: relative; min-height: 220px; margin: 0; overflow: hidden; border: 1px solid #5a4d39; border-radius: 16px; background: #241e16; }
.home-oem-media figure img { width: 100%; height: 100%; object-fit: cover; }
.home-oem-media figcaption { position: absolute; left: 14px; right: 14px; bottom: 14px; padding: 10px 12px; border-radius: 8px; background: rgba(23,19,13,.82); color: #e5d9c6; font-size: 10px; line-height: 1.45; }
.home-oem-visual { display: grid; grid-template-columns: repeat(3,1fr); align-items: stretch; gap: 12px; }
.home-oem-visual > div { min-height: 118px; padding: 18px; display: flex; flex-direction: column; border: 1px solid #5a4d39; border-radius: 13px; background: #241e16; }
.home-oem-visual span, .home-oem-visual b, .home-oem-visual small { display: block; }
.home-oem-visual span { margin-bottom: 13px; color: var(--amber); font-size: 11px; font-weight: 900; }
.home-oem-visual b { font-size: 17px; }
.home-oem-visual small { margin-top: 10px; color: #bfb3a1; font-size: 12px; line-height: 1.55; }
.home-oem-visual > i { display: none; }

.home-evidence-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.home-evidence-grid > a { min-height: 286px; padding: 28px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: var(--shadow-sm); }
.home-evidence-grid span { color: var(--teal); font-size: 11px; font-weight: 900; letter-spacing: .1em; }
.home-evidence-grid strong { margin: 42px 0 14px; font-size: 21px; line-height: 1.25; }
.home-evidence-grid p { font-size: 13px; }
.home-evidence-grid b { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); color: var(--teal); font-size: 12px; }

.home-resource-grid { display: grid; grid-template-columns: 1.15fr 1fr 1fr; gap: 16px; }
.home-resource-grid > a { min-height: 260px; padding: 30px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: var(--shadow-sm); }
.home-resource-grid > a:first-child { border-color: #f0d08a; background: var(--amber-soft); }
.home-resource-grid span { color: var(--teal); font-size: 11px; font-weight: 900; letter-spacing: .12em; }
.home-resource-grid h3 { margin-top: 38px; font-size: 24px; }
.home-resource-grid p { font-size: 13px; }
.home-resource-grid b { margin-top: auto; color: var(--teal); font-size: 12px; }

.home-conversion-grid { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 70px; }
.home-conversion-grid h2 { max-width: 720px; }
.home-conversion-grid p { margin-bottom: 0; }
.home-conversion-actions { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.home-conversion-actions a { min-height: 150px; padding: 24px; display: flex; flex-direction: column; justify-content: flex-end; border: 1px solid #5a4d39; border-radius: 12px; background: #241e16; }
.home-conversion-actions a.primary { border-color: var(--amber); background: var(--amber); color: var(--ink); }
.home-conversion-actions span, .home-conversion-actions b { display: block; }
.home-conversion-actions span { margin-bottom: 9px; color: #c8bcaa; font-size: 11px; }
.home-conversion-actions .primary span { color: #5e481e; }
.home-conversion-actions b { font-size: 18px; }

.inner-hero { padding: 78px 0 68px; border-bottom: 1px solid var(--line); background: linear-gradient(115deg,#fff 0%,#f2f8f5 100%); }
.inner-hero-grid { display: grid; grid-template-columns: 1fr .62fr; align-items: end; gap: 70px; }
.inner-hero-grid.product-hero-grid,
.inner-hero-grid.application-hero-grid,
.inner-hero-grid.technical-hero-grid { align-items: center; }
.inner-hero-grid.product-hero-grid { grid-template-columns: minmax(0,1.14fr) minmax(560px,.72fr); }
.inner-hero-grid.product-hero-grid > :first-child { align-self: center; }
.product-hero-grid .product-quick-nav { align-self: center; padding: 22px; }
.product-hero-grid .product-quick-nav a { min-height: 64px; padding-top: 10px; padding-bottom: 10px; }
.product-directory-hero,
.oem-directory-hero { padding: 48px 0; }
.product-hero-grid > *,
.oem-hero-grid > * { min-width: 0; }
.product-hero-grid .button-row,
.oem-hero-grid .button-row { margin-top: 28px; }
.product-hero-boundary { max-width: 680px; margin: 22px 0 0; padding-top: 16px; border-top: 1px solid var(--line); font-size: 12px; line-height: 1.55; }
.product-hero-visual-directory {
  min-width: 0;
  padding: 16px;
  display: grid;
  gap: 10px;
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  background: rgba(255,255,255,.94);
  box-shadow: var(--shadow-sm);
}
.product-hero-family {
  min-width: 0;
  overflow: hidden;
  display: grid;
  grid-template-columns: 156px minmax(0,1fr) auto;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  transition: transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.product-hero-family:hover { transform: translateX(4px); border-color: var(--teal); box-shadow: var(--shadow-sm); }
.product-hero-family img { width: 156px; aspect-ratio: 3 / 2; object-fit: cover; }
.product-hero-family > span { min-width: 0; padding: 14px 0; }
.product-hero-family small,
.product-hero-family strong,
.product-hero-family em { display: block; }
.product-hero-family small { margin-bottom: 7px; color: var(--teal); font-size: 10px; font-weight: 900; letter-spacing: .09em; }
.product-hero-family strong { color: var(--ink); font-size: 17px; line-height: 1.25; }
.product-hero-family em { margin-top: 7px; overflow: hidden; color: var(--muted); font-size: 11px; font-style: normal; line-height: 1.4; text-overflow: ellipsis; white-space: nowrap; }
.product-hero-family > i { padding-right: 16px; color: var(--teal); font-size: 11px; font-style: normal; font-weight: 850; white-space: nowrap; }
.product-hero-links { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.product-hero-links a { min-width: 0; padding: 14px 15px; border: 1px solid var(--line); border-radius: 10px; background: var(--mist); }
.product-hero-links b,
.product-hero-links span { display: block; }
.product-hero-links b { color: var(--ink); font-size: 13px; }
.product-hero-links span { margin-top: 5px; color: var(--muted); font-size: 10px; line-height: 1.45; }
.product-hero-visual-directory > p { margin: 0; padding: 2px 3px 0; color: var(--muted); font-size: 10px; line-height: 1.45; }
.inner-hero-grid.oem-hero-grid { grid-template-columns: minmax(0,1fr) minmax(520px,.82fr); align-items: center; }
.oem-hero-visual { margin: 0; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 18px; background: #fff; box-shadow: var(--shadow-sm); }
.oem-hero-visual img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.oem-hero-visual figcaption { padding: 14px 18px 15px; border-top: 1px solid var(--line); }
.oem-hero-visual figcaption b,
.oem-hero-visual figcaption span { display: block; }
.oem-hero-visual figcaption b { color: var(--ink); font-size: 14px; }
.oem-hero-visual figcaption span { margin-top: 5px; color: var(--muted); font-size: 10px; line-height: 1.45; }
.oem-packaging-visual { min-height: 0; }
.oem-packaging-visual img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.oem-proof .proof-visual-grid img { aspect-ratio: 16 / 9; object-fit: cover; }
.inner-hero h1 { max-width: 860px; font-size: clamp(44px,5vw,66px); }
.inner-hero .lead { margin-bottom: 0; }
.hero-panel { padding: 24px; border: 1px solid var(--line-strong); border-radius: 16px; background: rgba(255,255,255,.84); }
.hero-panel b { display: block; margin-bottom: 10px; }
.hero-panel ul { margin: 0; padding: 0; list-style: none; }
.hero-panel li { padding: 10px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.hero-panel li::before { content: "✓"; margin-right: 9px; color: var(--teal); font-weight: 900; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.image-panel { min-height: 460px; overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow); }
.image-panel img { width: 100%; height: 100%; object-fit: cover; object-position: 68% center; }
.check-list { display: grid; gap: 12px; margin: 26px 0; }
.check-item { padding: 17px 18px; border: 1px solid var(--line); border-radius: 11px; display: flex; gap: 12px; background: #fff; }
.check-item::before { content: "✓"; color: var(--teal); font-weight: 900; }
.check-item b { display: block; margin-bottom: 4px; }
.check-item span { color: var(--muted); font-size: 13px; line-height: 1.5; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.data-table { width: 100%; border-collapse: collapse; min-width: 760px; }
.data-table th, .data-table td { padding: 19px 22px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.data-table th { background: var(--mist); color: var(--ink); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.data-table td { color: var(--muted); font-size: 14px; line-height: 1.55; }
.data-table td:first-child { color: var(--ink); font-weight: 800; }
.data-table tr:last-child td { border-bottom: 0; }

.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { padding: 23px 42px 23px 0; list-style: none; cursor: pointer; color: var(--ink); font-weight: 800; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 18px; color: var(--teal); font-size: 27px; }
.faq details[open] summary::after { content: "−"; }
.faq details p { max-width: 850px; padding-bottom: 22px; }

.contact-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 30px; align-items: start; }
.contact-aside { padding: 34px; border-radius: var(--radius); background: var(--ink); color: #fff; }
.contact-aside p { color: #bdd0cb; }
.contact-line { padding: 19px 0; border-top: 1px solid #415955; }
.contact-line span { display: block; margin-bottom: 5px; color: #8db1aa; font-size: 10px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.contact-line b { font-size: 14px; }
.form-card { padding: 36px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
.form-path-lead { max-width: 720px; margin: -7px 0 24px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { color: var(--ink-2); font-size: 12px; font-weight: 800; }
.field input, .field textarea, .field select { width: 100%; border: 1px solid var(--line-strong); border-radius: 9px; outline: none; background: #fff; color: var(--ink); padding: 13px 14px; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(15,118,110,.1); }
.field textarea { min-height: 130px; resize: vertical; }
.form-note { margin: 15px 0 0; color: var(--muted); font-size: 11px; }
.form-progress { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; margin-top: 4px; color: var(--muted); font-size: 11px; }
.form-progress > span { position: relative; height: 6px; overflow: hidden; border-radius: 999px; background: var(--mist-2); }
.form-progress > span::after { content: ""; position: absolute; inset: 0 auto 0 0; width: var(--progress); border-radius: inherit; background: linear-gradient(90deg,var(--teal),var(--amber)); transition: width .2s ease; }
.form-progress b { color: var(--ink-2); white-space: nowrap; }

.mobile-conversion-bar { display: none; }

.site-footer { margin-top: 92px; padding: 60px 0 22px; background: #110e0a; color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3,1fr); gap: 54px; }
.footer-brand img { width: auto; height: 72px; padding: 7px 12px; border-radius: 12px; background: #fffaf0; object-fit: contain; }
.footer-brand p { max-width: 390px; margin: 23px 0; color: #9fb7b1; font-size: 13px; }
.footer-title { margin-bottom: 18px; color: #fff; font-size: 12px; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.footer-links { display: grid; gap: 12px; }
.footer-links a { color: #9fb7b1; font-size: 13px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 42px; padding-top: 22px; border-top: 1px solid #304640; display: flex; justify-content: space-between; gap: 20px; color: #78938c; font-size: 11px; }
.footer-bottom a { color: #9fb7b1; }

.toast { position: fixed; z-index: 90; right: 24px; bottom: 24px; max-width: 390px; padding: 18px 20px; border-radius: 12px; background: var(--ink); color: #fff; box-shadow: var(--shadow); opacity: 0; transform: translateY(20px); pointer-events: none; transition: .25s ease; }
.toast.show { opacity: 1; transform: translateY(0); }
.toast b { display: block; margin-bottom: 4px; }
.toast span { color: #bdd0cb; font-size: 12px; line-height: 1.5; }

@media (max-width: 1080px) {
  .main-nav { gap: 16px; }
  .main-nav a { font-size: 13px; }
  .nav-actions .btn-outline { display: none; }
  .hero-grid { grid-template-columns: 1fr .86fr; }
  .card-grid, .feature-grid { grid-template-columns: repeat(2,1fr); }
  .resource-grid { grid-template-columns: 1fr 1fr; }
  .resource-card:first-child { grid-column: 1 / -1; }
  .proof-grid { grid-template-columns: repeat(2,1fr); }
  .proof-item:nth-child(3) { border-left: 1px solid var(--line); }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-grid > div:last-child { display: none; }
  .inner-hero-grid.product-hero-grid,
  .inner-hero-grid.oem-hero-grid { grid-template-columns: 1fr; gap: 30px; }
}

@media (max-width: 860px) {
  :root { --page-pad: 22px; }
  .topbar .container span:last-child { display: none; }
  .nav-wrap { min-height: 68px; }
  .logo img { width: auto; height: 46px; }
  .menu-toggle { display: grid; place-items: center; margin-left: auto; }
  .nav-actions { display: none; }
  .main-nav { position: fixed; inset: 102px 0 auto; padding: 22px 24px 30px; display: none; align-items: stretch; flex-direction: column; gap: 0; background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .menu-open .main-nav { display: flex; }
  .main-nav a { padding: 15px 0; border-bottom: 1px solid var(--line); }
  .main-nav a::after { display: none; }
  .hero-grid, .inner-hero-grid, .split, .selector-grid, .contact-grid,
  html[lang="zh-CN"] .hero-grid { grid-template-columns: 1fr; }
  .hero > .container { padding-right: var(--page-pad); }
  .hero-grid, .hero-visual { min-height: auto; }
  .hero-copy { padding: 64px 0 38px; }
  .hero-visual { min-height: 410px; margin: 0 -16px; }
  .hero-visual::after { background: linear-gradient(180deg,#f9fcfb 0%,transparent 20%); }
  .hero-float { right: 20px; }
  .path-grid, .application-grid { grid-template-columns: 1fr; }
  .question-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .process-grid::before { display: none; }
  .section-head, .cta-inner { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  :root { --page-pad: 16px; }
  .section { padding: 68px 0; }
  h1 { font-size: 43px; }
  h2 { font-size: 34px; }
  .hero-grid { min-height: auto; }
  .hero-copy .button-row { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
  .hero-copy .button-row .btn { width: 100%; padding: 0 12px; }
  .hero-copy .button-row .btn:first-child { grid-column: 1 / -1; }
  .hero-note { gap: 10px 14px; }
  .hero-visual { min-height: 335px; }
  .hero-float { left: 16px; right: 16px; bottom: 15px; width: auto; }
  .proof-grid, .card-grid, .feature-grid, .resource-grid, .form-grid { grid-template-columns: 1fr; }
  .proof-item, .proof-item:nth-child(3) { border-left: 1px solid var(--line); }
  .path-card, .selector, .cta, .form-card, .contact-aside { padding: 26px; }
  .process-grid { grid-template-columns: 1fr; }
  .inner-hero { padding: 56px 0; }
  .inner-hero h1 { font-size: 42px; }
  .field.full { grid-column: auto; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
  body { padding-bottom: 66px; }
  .mobile-conversion-bar {
    position: fixed;
    z-index: 80;
    left: 0;
    right: 0;
    bottom: 0;
    min-height: 66px;
    padding: 8px max(12px,env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 8px;
    border-top: 1px solid var(--line-strong);
    background: rgba(255,255,255,.96);
    box-shadow: 0 -12px 32px rgba(20,54,49,.12);
    backdrop-filter: blur(14px);
  }
  .mobile-conversion-bar a { min-height: 48px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 10px; background: #fff; color: var(--ink); font-size: 14px; font-weight: 900; }
  .mobile-conversion-bar a.primary { border-color: var(--teal); background: var(--teal); color: #fff; }
  .toast { left: 14px; right: 14px; bottom: 82px; max-width: none; }
  .form-progress { grid-template-columns: 1fr; gap: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}
/* Tombaringr CN local demo — approved graphite / flow-blue system */
:root{--ink: #172126;--blue: #3478f6;--warm: #f4f2ed;--paper:#fff;--muted:#66737a;--line:#dce2e4;--radius:22px}
body.tombaringr-site{margin:0;background:var(--warm);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",sans-serif}
.tombaringr-site .container{width:min(1180px,calc(100% - 48px));margin-inline:auto}
.tombaringr-site .site-header{position:sticky;top:0;z-index:30;background:rgba(244,242,237,.92);border-bottom:1px solid rgba(23,33,38,.1);backdrop-filter:blur(18px)}
.tombaringr-site .nav-wrap{min-height:76px;display:flex;align-items:center;gap:30px}
.tombaringr-site .logo img{display:block;width:180px;height:auto}.tombaringr-site .main-nav{display:flex;gap:25px;margin-left:auto}.tombaringr-site .main-nav a{color:var(--ink);font-size:14px;text-decoration:none}.tombaringr-site .main-nav a:hover,.tombaringr-site .main-nav a.active{color:var(--blue)}
.tombaringr-site .nav-actions{display:flex;align-items:center;gap:14px}.language-state{font-size:12px;letter-spacing:.08em;color:var(--muted)}
.tombaringr-site .btn{display:inline-flex;justify-content:center;align-items:center;min-height:48px;padding:0 24px;border:1px solid var(--blue);border-radius:999px;background:var(--blue);color:#fff;text-decoration:none;font-weight:700;transition:.2s}.tombaringr-site .btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(52,120,246,.25)}.tombaringr-site .btn-small{min-height:40px;padding-inline:18px}.tombaringr-site .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.brand-hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:74px 0 84px}.brand-hero-grid{display:grid;grid-template-columns:.94fr 1.2fr;gap:62px;align-items:center}.brand-hero-copy{position:relative;z-index:2}.tombaringr-site .eyebrow{margin:0 0 17px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.brand-hero h1{margin:0;font-size:clamp(50px,5.6vw,84px);line-height:1.02;letter-spacing:-.055em}.brand-hero h1 span{color:#f4f2ed}.brand-hero .lead{max-width:570px;margin:26px 0 32px;color:#cbd3d6;font-size:18px;line-height:1.75}.button-row{display:flex;gap:12px;flex-wrap:wrap}.hero-facts{display:flex;gap:42px;margin:46px 0 0}.hero-facts div{padding-left:15px;border-left:2px solid var(--blue)}.hero-facts dt{color:#8e9b9f;font-size:12px}.hero-facts dd{margin:5px 0 0;font-weight:700}.brand-hero-media{margin:0;position:relative}.brand-hero-media img{display:block;width:100%;aspect-ratio:1.28;object-fit:cover;border-radius:32px;box-shadow:0 35px 80px rgba(0,0,0,.3)}.brand-hero-media figcaption{margin-top:10px;color:#839095;font-size:12px;text-align:right}
.elastic-seam{position:absolute;left:-3%;right:-3%;bottom:-35px;height:70px;background:var(--blue);border-radius:50% 50% 0 0/100% 100% 0 0;transform:rotate(-1.2deg)}
.tombaringr-site .section,.system-paths{padding:104px 0}.section-intro{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end;margin-bottom:48px}.section-intro h2,.product-duo h2,.process-band h2,.final-cta h2{margin:0;font-size:clamp(34px,4vw,56px);line-height:1.08;letter-spacing:-.04em}.section-intro>p:last-child{color:var(--muted);line-height:1.8}.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.path-card{min-height:260px;padding:30px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;color:var(--ink);text-decoration:none;display:flex;flex-direction:column;transition:.25s}.path-card:hover{transform:translateY(-6px);border-color:var(--blue);box-shadow:0 18px 48px rgba(23,33,38,.1)}.path-card>span{color:var(--blue);font-size:11px;font-weight:800;letter-spacing:.14em}.path-card h3{font-size:29px;margin:34px 0 12px}.path-card p{color:var(--muted);line-height:1.7}.path-card b{margin-top:auto;color:var(--blue)}
.product-duo{background:#fff}.product-duo-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}.product-duo-copy{padding:25px 35px 25px 0}.product-duo-copy p{color:var(--muted);line-height:1.8}.text-link{color:var(--blue);font-weight:700}.product-duo article{padding:34px;border-radius:var(--radius);background:var(--warm);min-height:320px;display:flex;flex-direction:column}.product-duo article.inverse{background:var(--ink);color:#fff}.product-duo article>span{font-size:11px;color:var(--blue);font-weight:800;letter-spacing:.14em}.product-duo article h3{margin:70px 0 12px;font-size:31px}.product-duo article p{color:var(--muted);line-height:1.7}.product-duo article.inverse p{color:#aeb9bd}.product-duo article a{margin-top:auto;color:var(--blue);font-weight:700}
.use-cases{background:var(--warm)}.section-intro.compact{display:block}.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.case-grid a{min-height:160px;padding:25px;border-radius:18px;background:#fff;color:var(--ink);text-decoration:none;display:flex;flex-direction:column;justify-content:space-between}.case-grid a:last-child{background:var(--blue);color:#fff}.case-grid b{font-size:22px}.case-grid span{color:var(--muted);line-height:1.5}.case-grid a:last-child span{color:#e8efff}
.process-band{background:var(--ink);color:#fff}.process-band .container{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}.process-band ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.process-band li{padding:25px;background:#202c31;border-radius:18px;display:grid;grid-template-columns:40px 1fr}.process-band li span{color:var(--blue);font-weight:800}.process-band li b{font-size:19px}.process-band li small{grid-column:2;color:#aab5b9;margin-top:8px;line-height:1.5}
.final-cta{padding:84px 0;background:var(--blue);color:#fff}.final-cta .container{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center}.final-cta .eyebrow{grid-column:1/-1;color:#cfe0ff;margin-bottom:-18px}.final-cta .button-row{justify-content:flex-end}.final-cta .btn{background:#fff;color:var(--ink);border-color:#fff}
.tombaringr-site .site-footer{background:#11191d;color:#fff;padding:68px 0 25px}.tombaringr-site .footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:54px}.tombaringr-site .footer-brand img{width:190px}.tombaringr-site .footer-brand p{max-width:340px;color:#94a1a6;line-height:1.7}.tombaringr-site .footer-title{margin-bottom:18px;font-weight:800}.tombaringr-site .footer-links{display:flex;flex-direction:column;gap:11px}.tombaringr-site .footer-links a{color:#aeb9bd;text-decoration:none}.tombaringr-site .footer-bottom{display:flex;justify-content:space-between;margin-top:52px;padding-top:20px;border-top:1px solid #303a3e;color:#748186;font-size:12px}
@media(max-width:900px){.tombaringr-site .main-nav,.tombaringr-site .nav-actions{display:none}.tombaringr-site .menu-toggle{display:block;margin-left:auto}.brand-hero-grid,.section-intro,.product-duo-grid,.process-band .container,.final-cta .container{grid-template-columns:1fr}.brand-hero{padding-top:45px}.brand-hero h1{font-size:52px}.brand-hero-media{margin-top:10px}.path-grid,.case-grid{grid-template-columns:1fr 1fr}.tombaringr-site .footer-grid{grid-template-columns:1fr 1fr}.final-cta .button-row{justify-content:flex-start}}
@media(max-width:580px){.tombaringr-site .container{width:min(100% - 30px,1180px)}.brand-hero h1{font-size:43px}.path-grid,.case-grid,.process-band ol,.tombaringr-site .footer-grid{grid-template-columns:1fr}.hero-facts{gap:20px}.tombaringr-site .section{padding:72px 0}.brand-hero-media img{aspect-ratio:1/1}.footer-bottom{gap:15px;flex-direction:column}}
.tombaringr-site .mobile-conversion-bar{background:rgba(244,242,237,.96);border-top-color:var(--line)}
.tombaringr-site .mobile-conversion-bar a{color:var(--ink);border-color:var(--line);background:#fff}
.tombaringr-site .mobile-conversion-bar a.primary{color:#fff;border-color:var(--blue);background:var(--blue)}

.language-switch{display:inline-flex;align-items:center;min-height:40px;padding:0 16px;border:1px solid #ccd8e7;border-radius:10px;background:#f7faff;color:#174274!important;font-size:13px;font-weight:800;text-decoration:none;white-space:nowrap}.language-switch:hover{border-color:#3478f6;background:#edf4ff}
.language-switch img{display:block;width:22px;height:14px;margin-right:7px;border-radius:2px;box-shadow:0 0 0 1px rgba(20,54,84,.14)}