:root {
  --navy-950: #061522;
  --navy-900: #0a2033;
  --navy-800: #12344d;
  --navy-700: #1c4965;
  --teal-600: #0f918a;
  --teal-500: #14b8ad;
  --teal-100: #dff7f4;
  --amber-500: #f3a72d;
  --amber-100: #fff0d1;
  --ink: #132433;
  --muted: #637381;
  --line: #dce6eb;
  --soft: #f3f7f9;
  --white: #fff;
  --shadow-sm: 0 8px 24px rgba(7, 30, 47, .08);
  --shadow-lg: 0 28px 80px rgba(5, 30, 48, .16);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--teal-600); }
button, input { font: inherit; }
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.skip-link { position: absolute; left: -999px; top: 0; z-index: 100; padding: 10px 16px; background: var(--navy-950); color: white; }
.skip-link:focus { left: 12px; top: 12px; }

.topbar { background: var(--navy-950); color: #c9d6df; font-size: 13px; }
.topbar-inner { min-height: 36px; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.topbar a { color: #fff; font-weight: 700; letter-spacing: .04em; }
.topbar-note { opacity: .78; }
.site-header { position: sticky; top: 0; z-index: 50; background: white; box-shadow: 0 8px 24px rgba(7,30,47,.08); }
.header-inner { min-height: 96px; display: flex; align-items: center; justify-content: space-between; gap: 26px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 190px; }
.brand:hover { color: inherit; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; color: white; background: linear-gradient(145deg, var(--teal-500), var(--navy-800)); box-shadow: 0 10px 24px rgba(15, 145, 138, .25); font-weight: 900; font-size: 20px; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.15; }
.brand-copy strong { color: var(--navy-950); font-size: 20px; letter-spacing: .08em; }
.brand-copy small { margin-top: 5px; color: var(--muted); font-size: 11px; letter-spacing: .08em; }
.header-slogan { display: flex; flex-direction: column; padding-left: 34px; border-left: 1px solid var(--line); }
.header-slogan strong { color: var(--navy-800); font-size: 18px; letter-spacing: .04em; }
.header-slogan span { margin-top: 4px; color: var(--muted); font-size: 12px; }
.header-phone { display: flex; flex-direction: column; align-items: flex-end; color: var(--navy-950); }
.header-phone:hover { color: var(--teal-600); }
.header-phone small { color: var(--muted); font-size: 12px; }
.header-phone strong { font-size: 25px; line-height: 1.35; letter-spacing: .035em; }
.menu-bar { background: linear-gradient(90deg,var(--navy-800),#155375); }
.nav-toggle { display: none; align-items: center; gap: 10px; width: 100%; min-height: 48px; padding: 0; border: 0; background: none; color: white; font: inherit; font-size: 15px; cursor: pointer; }
.nav-toggle-bars { position: relative; width: 20px; height: 2px; background: white; box-shadow: 0 -6px 0 white,0 6px 0 white; }
.menu-bar.open .nav-toggle-bars { background: transparent; box-shadow: none; }
.menu-bar.open .nav-toggle-bars::before,.menu-bar.open .nav-toggle-bars::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: white; }
.menu-bar.open .nav-toggle-bars::before { transform: rotate(45deg); }
.menu-bar.open .nav-toggle-bars::after { transform: rotate(-45deg); }
.main-nav { display: grid; grid-template-columns: repeat(6,1fr); align-items: center; color: white; font-size: 15px; }
.main-nav > a,.nav-item > a { display: flex; align-items: center; justify-content: center; min-height: 51px; padding: 0 10px; border-left: 1px solid rgba(255,255,255,.1); color: white; transition: background .18s ease; }
.main-nav > :last-child > a,.main-nav > a:last-child { border-right: 1px solid rgba(255,255,255,.1); }
.main-nav > a:hover,.nav-item:hover > a,.nav-item:focus-within > a { color: white; background: rgba(20,184,173,.26); }
.nav-item { position: relative; min-width: 0; }
.nav-dropdown { position: absolute; left: 0; top: 100%; z-index: 70; min-width: 210px; padding: 7px 0; visibility: hidden; opacity: 0; transform: translateY(7px); border-top: 3px solid var(--teal-500); background: white; box-shadow: 0 16px 36px rgba(6,21,34,.2); transition: .16s ease; }
.nav-item:hover .nav-dropdown,.nav-item:focus-within .nav-dropdown { visibility: visible; opacity: 1; transform: translateY(0); }
.nav-dropdown a { display: block; padding: 10px 17px; border-bottom: 1px solid #e8eef1; color: #304957; font-size: 13px; white-space: nowrap; }
.nav-dropdown a:last-child { border-bottom: 0; }.nav-dropdown a:hover { color: var(--teal-600); background: #eff8f7; }
.header-cta { flex: 0 0 auto; display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 999px; color: white; background: var(--teal-600); font-weight: 700; box-shadow: 0 8px 22px rgba(15, 145, 138, .24); }
.header-cta:hover { color: white; background: #0b7772; transform: translateY(-1px); }

.hero { position: relative; overflow: hidden; padding: 92px 0 82px; color: white; background: var(--navy-950); }
.hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 76% 28%, rgba(20,184,173,.24), transparent 28%), radial-gradient(circle at 18% 110%, rgba(243,167,45,.14), transparent 32%), linear-gradient(115deg, transparent 46%, rgba(255,255,255,.035) 46.1%, transparent 46.5%); pointer-events: none; }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 72px; align-items: center; }
.eyebrow { margin: 0 0 16px; color: var(--teal-500); font-size: 13px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.eyebrow.light { color: #84e8e1; }
.hero h1 { margin: 0; max-width: 720px; font-size: clamp(44px, 5.5vw, 74px); line-height: 1.11; letter-spacing: -.04em; }
.hero h1 em { display: block; margin-top: 10px; color: #8ce9e3; font-style: normal; }
.hero-copy { max-width: 660px; margin: 24px 0 0; color: #b8cbd7; font-size: 18px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 32px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 0 22px; border: 1px solid transparent; border-radius: 10px; font-weight: 750; transition: .2s ease; }
.button-primary { color: var(--navy-950); background: var(--amber-500); box-shadow: 0 14px 30px rgba(243,167,45,.2); }
.button-primary:hover { color: var(--navy-950); background: #ffb94d; transform: translateY(-2px); }
.button-ghost { color: white; border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.05); }
.button-ghost:hover { color: white; border-color: rgba(255,255,255,.55); background: rgba(255,255,255,.1); }
.button-teal { color: white; background: var(--teal-600); }
.button-teal:hover { color: white; background: #0b7772; }
.hero-points { display: flex; flex-wrap: wrap; gap: 18px 24px; margin: 30px 0 0; padding: 0; list-style: none; color: #d4e1e8; font-size: 14px; }
.hero-points li::before { content: "✓"; margin-right: 8px; color: #78e2db; font-weight: 900; }

.hero-panel { position: relative; min-height: 430px; padding: 26px; border: 1px solid rgba(255,255,255,.13); border-radius: 26px; background: linear-gradient(145deg, rgba(255,255,255,.1), rgba(255,255,255,.035)); box-shadow: var(--shadow-lg); backdrop-filter: blur(8px); }
.hero-panel::after { content: ""; position: absolute; inset: 20% -8% -12% 32%; z-index: -1; border-radius: 50%; background: rgba(20,184,173,.14); filter: blur(40px); }
.panel-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.12); }
.panel-head strong { font-size: 16px; letter-spacing: .04em; }
.status { display: inline-flex; align-items: center; gap: 7px; color: #8ce9e3; font-size: 12px; }
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #48dfd4; box-shadow: 0 0 0 5px rgba(72,223,212,.12); }
.security-map { position: relative; height: 312px; margin-top: 18px; }
.security-map::before, .security-map::after { content: ""; position: absolute; left: 50%; top: 48px; bottom: 52px; width: 1px; background: linear-gradient(#31c6bb, rgba(49,198,187,.18)); }
.security-map::after { left: 18%; right: 18%; top: 50%; bottom: auto; width: auto; height: 1px; }
.map-core { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 108px; height: 108px; display: grid; place-items: center; border: 1px solid rgba(102,231,221,.55); border-radius: 50%; color: white; background: rgba(15,145,138,.2); box-shadow: 0 0 0 14px rgba(15,145,138,.08), 0 0 45px rgba(20,184,173,.18); text-align: center; font-weight: 800; line-height: 1.45; }
.map-node { position: absolute; width: 128px; padding: 13px 12px; border: 1px solid rgba(255,255,255,.12); border-radius: 12px; background: #102e44; color: #dce8ee; font-size: 13px; box-shadow: 0 12px 24px rgba(0,0,0,.14); }
.map-node b { display: block; margin-bottom: 2px; color: #79e3dc; font-size: 11px; letter-spacing: .08em; }
.node-a { left: 0; top: 32px; }.node-b { right: 0; top: 32px; }.node-c { left: 0; bottom: 26px; }.node-d { right: 0; bottom: 26px; }

.capability-bar { position: relative; margin-top: -1px; background: var(--navy-900); color: white; }
.capability-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.capability-item { padding: 22px 22px 24px; border-left: 1px solid rgba(255,255,255,.08); }
.capability-item:last-child { border-right: 1px solid rgba(255,255,255,.08); }
.capability-item strong { display: block; color: #8ce9e3; font-size: 17px; }
.capability-item span { color: #9fb4c1; font-size: 13px; }

.section { padding: 96px 0; }
.section-soft { background: var(--soft); }
.section-dark { position: relative; overflow: hidden; color: white; background: var(--navy-950); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 40px; }
.section-head-copy { max-width: 660px; }
.section-head h2, .page-title { margin: 0; color: var(--navy-950); font-size: clamp(32px,4.2vw,50px); line-height: 1.2; letter-spacing: -.035em; }
.section-head p { margin: 14px 0 0; color: var(--muted); }
.section-head-link { color: var(--teal-600); font-weight: 700; white-space: nowrap; }

.solutions-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.solution-card { position: relative; overflow: hidden; min-height: 310px; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: 0 1px 0 white inset; transition: .25s ease; }
.solution-card:hover { transform: translateY(-5px); border-color: #b9d9d7; box-shadow: var(--shadow-lg); color: inherit; }
.solution-card::after { content: attr(data-index); position: absolute; right: 22px; top: 6px; color: #edf2f4; font-size: 76px; font-weight: 900; line-height: 1; }
.solution-icon { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 14px; color: var(--teal-600); background: var(--teal-100); font-size: 20px; font-weight: 900; }
.solution-card h3 { position: relative; z-index: 1; margin: 26px 0 12px; color: var(--navy-950); font-size: 24px; }
.solution-card p { max-width: 510px; margin: 0; color: var(--muted); }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.tag { padding: 5px 10px; border-radius: 999px; color: var(--navy-700); background: #eef5f7; font-size: 12px; }
.solution-link { display: inline-flex; margin-top: 25px; color: var(--teal-600); font-weight: 750; }

.product-overview { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.product-card { display: flex; flex-direction: column; min-height: 340px; padding: 28px 24px; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: var(--shadow-sm); transition: .24s ease; }
.product-card:hover { color: inherit; border-color: #a9d5d2; transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.product-card-mark { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 15px; color: white; background: linear-gradient(145deg,var(--teal-500),var(--navy-800)); font-size: 19px; font-weight: 900; }
.product-card-image { height: 180px; display: grid; place-items: center; margin: -10px -6px 0; overflow: hidden; border-radius: 12px; background: #f4f7f8; }
.product-card-image img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.product-card h2 { margin: 24px 0 12px; color: var(--navy-950); font-size: 22px; line-height: 1.4; }
.product-card p { margin: 0; color: var(--muted); font-size: 14px; }
.product-card .solution-link { margin-top: auto; padding-top: 24px; }

.product-detail-head { position: relative; overflow: hidden; padding: 82px 0; color: white; background: linear-gradient(125deg,var(--navy-950),var(--navy-800)); }
.product-detail-head::after { content: ""; position: absolute; width: 480px; height: 480px; right: -140px; top: -240px; border: 1px solid rgba(118,226,219,.22); border-radius: 50%; box-shadow: 0 0 0 62px rgba(118,226,219,.035),0 0 0 125px rgba(118,226,219,.02); }
.product-head-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr .7fr; gap: 60px; align-items: center; }
.product-detail-head h1 { margin: 0; max-width: 720px; font-size: clamp(38px,5vw,62px); line-height: 1.2; letter-spacing: -.04em; }
.product-detail-head p { max-width: 700px; margin: 20px 0 0; color: #bdd0db; font-size: 17px; }
.product-head-card { padding: 30px; border: 1px solid rgba(255,255,255,.15); border-radius: 20px; background: rgba(255,255,255,.07); backdrop-filter: blur(8px); }
.product-head-card b { display: block; margin-bottom: 15px; color: #8ce9e3; font-size: 13px; letter-spacing: .12em; }
.product-head-card span { display: block; padding: 10px 0; border-top: 1px solid rgba(255,255,255,.1); color: #e0e9ee; }
.product-head-media { overflow: hidden; padding: 16px; border: 1px solid rgba(255,255,255,.16); border-radius: 20px; background: white; box-shadow: 0 24px 60px rgba(0,0,0,.2); }
.product-head-media img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; }
.product-head-media span { display: block; padding: 9px 6px 0; color: #637381; font-size: 11px; text-align: center; }
.product-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.product-info-card { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.product-info-card h2 { margin: 0 0 22px; color: var(--navy-950); font-size: 26px; }
.product-copy-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; margin-top: 24px; }
.product-copy-section { padding: 28px; border: 1px solid var(--line); background: white; }
.product-copy-section h2 { margin: 0 0 18px; color: var(--navy-950); font-size: 21px; }
.check-list { margin: 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 13px 0 13px 34px; border-top: 1px solid var(--line); color: #405563; }
.check-list li::before { content: "✓"; position: absolute; left: 5px; color: var(--teal-600); font-weight: 900; }
.product-nav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.product-nav a { padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--navy-700); background: white; font-size: 13px; }
.product-nav a:hover { border-color: var(--teal-500); color: var(--teal-600); }
.classic-sub-layout { display: grid; grid-template-columns: 230px minmax(0,1fr); gap: 28px; align-items: start; }
.classic-sidebar { border: 1px solid var(--line); background: white; }
.classic-sidebar h2 { margin: 0; padding: 18px 20px; color: white; background: var(--navy-800); font-size: 19px; }
.classic-sidebar nav a { display: block; padding: 14px 18px; border-bottom: 1px solid var(--line); color: #405563; font-size: 14px; }
.classic-sidebar nav a:last-child { border-bottom: 0; }.classic-sidebar nav a:hover { color: var(--teal-600); background: #eef8f7; }
.classic-sidebar nav a.current { color: var(--teal-600); background: #eef8f7; font-weight: 700; box-shadow: inset 3px 0 0 var(--teal-600); }
.classic-sidebar-contact { margin-top: 18px; padding: 20px; color: white; background: linear-gradient(145deg,var(--teal-600),var(--navy-800)); }
.classic-sidebar-contact small,.classic-sidebar-contact span { display: block; }.classic-sidebar-contact strong { display: block; margin: 6px 0 10px; font-size: 19px; }
.classic-sidebar-contact a { display: inline-flex; padding: 7px 12px; border-radius: 7px; color: var(--navy-950); background: var(--amber-500); font-size: 12px; font-weight: 800; }
.classic-content-panel { min-width: 0; }.classic-content-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 22px; padding-bottom: 13px; border-bottom: 2px solid var(--navy-800); }.classic-content-heading h2 { margin: 0; color: var(--navy-950); font-size: 24px; }.classic-content-heading span { color: var(--muted); font-size: 12px; }
.classic-sub-layout .product-overview { grid-template-columns: repeat(2,1fr); }
.classic-sub-layout .article-grid { grid-template-columns: repeat(2,1fr); }
.article-layout { padding: 58px 0 90px; }.article-layout .article-wrap { width: 100%; margin: 0; padding: 0; }.article-layout .classic-sidebar { position: sticky; top: 175px; }
.legacy-catalog-tabs { display: grid; grid-template-columns: repeat(4,1fr); margin-bottom: 22px; border: 1px solid var(--line); background: white; }
.legacy-catalog-tabs a { min-height: 46px; display: flex; align-items: center; justify-content: center; border-right: 1px solid var(--line); color: #405563; font-size: 14px; }
.legacy-catalog-tabs a:nth-child(4n),.legacy-catalog-tabs a:last-child { border-right: 0; }
.legacy-catalog-tabs a:nth-last-child(n+5) { border-bottom: 1px solid var(--line); }
.legacy-catalog-tabs a:hover { color: white; background: var(--teal-600); }
.product-category { margin-bottom: 42px; scroll-margin-top: 20px; }
.product-category:last-of-type { margin-bottom: 22px; }
.product-category-head { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; padding-bottom: 10px; margin-bottom: 10px; border-bottom: 2px solid var(--navy-900); }
.product-category-head h2 { margin: 0; color: var(--navy-950); font-size: 21px; }
.product-category-head span { flex: 0 0 auto; color: #7c8f98; font-size: 13px; }
.product-category-intro { margin: 0 0 20px; color: #556b76; font-size: 14px; line-height: 1.75; }
.product-category-head h2 a { color: inherit; }
.product-category-head h2 a:hover { color: var(--teal-600); }
.product-category-list { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 6px 20px; margin: 0 0 14px; padding: 0; list-style: none; }
.product-category-list a { display: block; padding: 9px 0 9px 14px; border-bottom: 1px dashed var(--line); color: #405563; font-size: 14px; position: relative; }
.product-category-list a::before { content: "›"; position: absolute; left: 0; color: var(--teal-600); font-weight: 900; }
.product-category-list a:hover { color: var(--teal-600); }
.product-category-more { display: inline-block; color: var(--teal-600); font-size: 14px; font-weight: 700; }
.legacy-family-block { margin-bottom: 30px; }
.legacy-family-block:last-of-type { margin-bottom: 18px; }
.legacy-family-block h3 { margin: 0 0 8px; padding-left: 12px; border-left: 3px solid var(--teal-600); color: var(--navy-950); font-size: 18px; }
.legacy-family-note { margin: 0 0 14px; padding-left: 12px; color: #62777f; font-size: 13px; line-height: 1.6; }
.legacy-catalog-total { margin: 6px 0 0; color: #62777f; font-size: 13px; }
.legacy-catalog-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; }
.legacy-catalog-card { min-height: 185px; display: grid; grid-template-columns: 44% 56%; overflow: hidden; border: 1px solid var(--line); background: white; transition: .2s ease; }
.legacy-catalog-card:hover { color: inherit; border-color: #91cbc6; box-shadow: var(--shadow-lg); transform: translateY(-2px); }
/* <picture> wraps the product shots for WebP delivery; keep the inner <img> as the
   direct grid/flex item so the existing sizing rules below still apply to it. */
.legacy-catalog-image picture,.classic-product-visual picture,.legacy-product-article figure picture { display: contents; }
/* Generated covers carry their own tinted ground, so they skip the multiply blend and the
   inset padding that the de-branded photographs needed. */
.cat-tiles-band { padding: 26px 0 4px; }
.cat-tiles { display: grid; grid-template-columns: repeat(6,1fr); gap: 12px; }
.cat-tile { display: flex; flex-direction: column; gap: 4px; padding: 16px 14px; border: 1px solid var(--line); border-top: 3px solid var(--teal-600); background: white; box-shadow: var(--shadow-sm); transition: .18s ease; }
.cat-tile:hover { color: inherit; border-top-color: var(--amber-500); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.cat-tile strong { color: var(--navy-950); font-size: 15px; line-height: 1.45; }
.cat-tile span { color: var(--muted); font-size: 12px; }
.pagination .gap { min-width: 26px; display: inline-flex; align-items: center; justify-content: center; color: var(--muted); }
.diagram { margin: 16px 0 4px; padding: 0; }
.diagram svg { display: block; width: 100%; height: auto; border: 1px solid var(--line); background: #fbfcfd; }
.diagram-cap { margin-top: 8px; color: var(--muted); font-size: 12.5px; line-height: 1.6; }
.model-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 10px; }
.model-list span { padding: 5px 12px; border: 1px solid var(--line); border-radius: 3px; background: var(--soft); color: var(--navy-900); font-size: 14px; font-weight: 600; letter-spacing: .02em; }
.model-note { margin: 0; color: var(--muted); font-size: 13px; }
.product-cta { border: 1px solid #d5e6e7; background: #edf7f6; padding: 20px 22px; }
.product-cta h3 { margin: 0 0 8px; }
.product-cta p { margin: 0 0 14px; color: #4d626c; }
.product-cover { width: 100%; height: 100%; object-fit: cover; mix-blend-mode: normal; }
.legacy-catalog-image:has(.product-cover) { padding: 0; }
.legacy-product-article figure .product-cover { width: min(100%,420px); height: auto; padding: 0; border: 1px solid #dfe7eb; }
.legacy-catalog-image { display: grid; place-items: center; overflow: hidden; padding: 10px; border-right: 1px solid var(--line); background: #f4f7f8; }
.legacy-catalog-image img { width: 100%; height: 100%; max-height: 165px; object-fit: contain; mix-blend-mode: multiply; transition: transform .2s ease; }
.legacy-catalog-card:hover img { transform: scale(1.04); }
.legacy-catalog-copy { min-width: 0; display: flex; flex-direction: column; padding: 20px 18px; }
.legacy-catalog-copy strong { color: var(--navy-950); font-size: 16px; line-height: 1.55; }
.legacy-catalog-copy p { margin: 8px 0 0; color: var(--muted); font-size: 12px; }
.legacy-catalog-copy em { margin-top: auto; padding-top: 12px; color: var(--teal-600); font-size: 12px; font-style: normal; font-weight: 800; }
.legacy-product-pagination { display: flex; align-items: center; justify-content: flex-end; gap: 7px; margin-top: 24px; }
.legacy-product-pagination span,.legacy-product-pagination a { min-width: 36px; padding: 7px 10px; border: 1px solid var(--line); background: white; color: #526572; font-size: 12px; text-align: center; }
.legacy-product-pagination a.current { color: white; border-color: var(--navy-800); background: var(--navy-800); }

.legacy-category-banner { min-height: 150px; display: flex; align-items: center; color: white; background: linear-gradient(105deg,rgba(7,42,70,.96),rgba(12,90,109,.82)),linear-gradient(135deg,#0a2b47,#14777f); }
.legacy-category-banner .shell { display: flex; flex-direction: column; justify-content: center; }
.legacy-category-banner span { margin-bottom: 8px; color: #91dcd7; font-size: 12px; font-weight: 800; letter-spacing: .18em; }
.legacy-category-banner strong { font-size: clamp(27px,3.2vw,38px); line-height: 1.2; }
.legacy-detail-section { padding: 38px 0 82px; background: #f3f6f8; }
.legacy-product-content { min-width: 0; overflow: hidden; border: 1px solid var(--line); background: white; box-shadow: var(--shadow-sm); }
.legacy-breadcrumb { padding: 13px 22px; border-bottom: 1px solid var(--line); color: #7d8c96; font-size: 12px; text-align: right; }
.legacy-breadcrumb a { color: #607580; }
.legacy-column-title { padding: 0 22px; border-bottom: 2px solid var(--navy-800); }
.legacy-column-title h2 { display: inline-block; margin: 0; padding: 15px 4px 11px; color: var(--navy-950); font-size: 19px; }
.legacy-column-title h2::before { content: ""; display: inline-block; width: 4px; height: 17px; margin-right: 9px; background: var(--teal-500); vertical-align: -2px; }
.legacy-product-article { padding: 30px 36px 38px; color: #445762; font-size: 15px; line-height: 1.9; }
.legacy-product-article h1 { margin: 0 0 25px; color: var(--navy-950); font-size: clamp(24px,3vw,31px); line-height: 1.35; text-align: center; }
.legacy-product-article figure { margin: 0 auto 14px; text-align: center; }
.legacy-product-article figure img { width: min(100%,420px); max-height: 390px; object-fit: contain; padding: 12px; border: 1px solid #dfe7eb; background: #f7f9fa; }
.legacy-product-article figcaption { margin-top: 7px; color: #8a979f; font-size: 11px; line-height: 1.55; }
.legacy-phone-line { margin: 18px 0 24px; padding: 12px 16px; border-left: 4px solid #d33d36; background: #fff4f2; color: #9f2b26; font-weight: 800; text-align: center; }
.legacy-phone-line a { margin-left: 8px; color: #c6322c; font-size: 21px; letter-spacing: .04em; }
.legacy-product-lead { margin: 0 0 24px; padding-bottom: 22px; border-bottom: 1px dashed #cad5da; }
.legacy-copy-section { margin-top: 25px; }
.legacy-copy-section h3 { margin: 0 0 12px; padding-left: 11px; border-left: 4px solid var(--teal-500); color: var(--navy-900); font-size: 18px; line-height: 1.45; }
.legacy-copy-section ul { margin: 0; padding-left: 22px; }
.legacy-copy-section li { margin: 6px 0; }
.legacy-product-note { margin: 28px 0 0; padding: 15px 17px; border: 1px solid #d9e4e8; background: #f5f8f9; color: #6c7c85; font-size: 13px; }
.legacy-product-content .product-nav { margin: 0 36px 34px; padding-top: 20px; border-top: 1px solid var(--line); }

.value-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; align-items: center; }
.value-copy h2 { margin: 0; color: var(--navy-950); font-size: clamp(34px,4vw,50px); line-height: 1.22; }
.value-copy > p { color: var(--muted); }
.value-note { margin-top: 28px; padding: 20px 22px; border-left: 4px solid var(--amber-500); border-radius: 0 12px 12px 0; background: var(--amber-100); color: #69440c; }
.value-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 15px; }
.value-item { padding: 25px; border: 1px solid var(--line); border-radius: 15px; background: white; box-shadow: var(--shadow-sm); }
.value-item b { display: block; margin-bottom: 8px; color: var(--navy-950); font-size: 18px; }
.value-item span { color: var(--muted); font-size: 14px; }
.value-number { display: block; margin-bottom: 16px; color: var(--teal-600); font-size: 12px; font-weight: 900; letter-spacing: .14em; }

.process-grid { position: relative; display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; margin-top: 48px; }
.process-grid::before { content: ""; position: absolute; left: 8%; right: 8%; top: 27px; height: 1px; background: rgba(140,233,227,.35); }
.process-item { position: relative; text-align: center; }
.process-num { position: relative; z-index: 1; width: 56px; height: 56px; display: grid; place-items: center; margin: 0 auto 18px; border: 1px solid rgba(140,233,227,.55); border-radius: 50%; color: #8ce9e3; background: var(--navy-950); font-weight: 800; }
.process-item h3 { margin: 0 0 8px; font-size: 18px; }
.process-item p { margin: 0; color: #9fb4c1; font-size: 14px; }

.cta-band { padding: 0 0 96px; background: var(--soft); }
.cta-card { position: relative; overflow: hidden; display: grid; grid-template-columns: 1fr auto; gap: 34px; align-items: center; padding: 46px 52px; border-radius: 24px; color: white; background: linear-gradient(120deg, var(--teal-600), #086d73 56%, var(--navy-800)); box-shadow: var(--shadow-lg); }
.cta-card::after { content: ""; position: absolute; width: 290px; height: 290px; right: -90px; top: -130px; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; box-shadow: 0 0 0 34px rgba(255,255,255,.04), 0 0 0 74px rgba(255,255,255,.025); }
.cta-card h2 { position: relative; z-index: 1; margin: 0; font-size: clamp(28px,4vw,42px); line-height: 1.25; }
.cta-card p { position: relative; z-index: 1; margin: 10px 0 0; color: #d2f3f0; }
.cta-actions { position: relative; z-index: 1; display: flex; align-items: center; gap: 14px; }
.cta-phone { color: white; font-size: 24px; font-weight: 900; white-space: nowrap; letter-spacing: .03em; }

.article-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.article-card { min-height: 260px; display: flex; flex-direction: column; padding: 26px; border: 1px solid var(--line); border-radius: 16px; background: white; transition: .22s ease; }
.article-card:hover { transform: translateY(-4px); border-color: #b8d8d6; box-shadow: var(--shadow-lg); color: inherit; }
.card-category { color: var(--teal-600); font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.article-card h3 { margin: 15px 0 12px; color: var(--navy-950); font-size: 19px; line-height: 1.55; }
.article-card p { margin: 0; color: var(--muted); font-size: 14px; }
.article-card time { margin-top: auto; padding-top: 18px; color: #91a0aa; font-size: 12px; }

.faq-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.faq-item { padding: 0 24px; border: 1px solid var(--line); border-radius: 14px; background: white; }
.faq-item summary { padding: 22px 0; cursor: pointer; color: var(--navy-950); font-weight: 750; }
.faq-item p { margin: -4px 0 22px; color: var(--muted); font-size: 14px; }

.page-head { position: relative; overflow: hidden; padding: 76px 0; color: white; background: var(--navy-950); }
.page-head::after { content: ""; position: absolute; width: 440px; height: 440px; right: -110px; top: -230px; border: 1px solid rgba(140,233,227,.22); border-radius: 50%; box-shadow: 0 0 0 55px rgba(140,233,227,.035), 0 0 0 110px rgba(140,233,227,.02); }
.page-title { color: white; }
.page-intro { max-width: 680px; margin: 14px 0 0; color: #b8cbd7; }
.archive-meta { margin-top: 24px; color: #86e4de; font-size: 14px; }

.article-wrap { width: min(820px, calc(100% - 40px)); margin: 0 auto; padding: 72px 0 100px; }
.breadcrumb { margin-bottom: 24px; color: var(--muted); font-size: 13px; }
.breadcrumb a { color: var(--teal-600); }
.article-title { margin: 0; color: var(--navy-950); font-size: clamp(34px,5vw,54px); line-height: 1.25; letter-spacing: -.035em; }
.article-meta { margin: 18px 0 34px; color: var(--muted); font-size: 13px; }
.article-body { padding-top: 32px; border-top: 1px solid var(--line); color: #2a3b48; font-size: 17px; line-height: 1.95; }
.article-body p { margin: 0 0 24px; }
.article-convert { margin-top: 42px; padding: 28px; border-radius: 16px; color: white; background: var(--navy-900); }
.article-convert strong { display: block; font-size: 20px; }
.article-convert span { display: block; margin: 8px 0 18px; color: #adc1cd; }

.pagination { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 34px; }
.pagination a, .pagination span { min-width: 38px; padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; text-align: center; background: white; }
.pagination .current { color: white; border-color: var(--teal-600); background: var(--teal-600); }

.search-box { width: min(720px,100%); display: flex; gap: 9px; margin: 26px 0 28px; }
.search-box input { flex: 1; min-width: 0; padding: 14px 16px; border: 1px solid rgba(255,255,255,.25); border-radius: 10px; color: white; background: rgba(255,255,255,.08); outline: none; }
.search-box input::placeholder { color: #9eb3bf; }
.search-box input:focus { border-color: #70ddd6; }
.search-box button { padding: 14px 22px; border: 0; border-radius: 10px; color: var(--navy-950); background: var(--amber-500); font-weight: 800; cursor: pointer; }
.search-results { display: grid; gap: 10px; }
.search-results > p { color: #b8cbd7; }
.search-result { display: block; padding: 17px 18px; border-radius: 10px; color: var(--ink); background: white; }
.search-result strong { display: block; }.search-result span { color: var(--muted); font-size: 13px; }

.contact-layout { display: grid; grid-template-columns: 1fr .8fr; gap: 32px; align-items: stretch; }
.contact-card { padding: 38px; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: var(--shadow-sm); }
.contact-card h2 { margin: 0 0 10px; color: var(--navy-950); font-size: 30px; }
.contact-card > p { color: var(--muted); }
.contact-phone { display: block; margin: 26px 0 6px; color: var(--teal-600); font-size: clamp(30px,4vw,46px); font-weight: 900; letter-spacing: .03em; }
.contact-phone:hover { color: #0a7772; }
.contact-steps { margin: 28px 0 0; padding: 0; list-style: none; }
.contact-steps li { padding: 14px 0; border-top: 1px solid var(--line); color: #415563; }
.contact-steps b { margin-right: 10px; color: var(--teal-600); }
.contact-side { padding: 38px; border-radius: var(--radius); color: white; background: var(--navy-900); }
.contact-side h3 { margin: 0 0 20px; font-size: 24px; }
.contact-side dl { margin: 0; }
.contact-side dt { margin-top: 22px; color: #7edfd8; font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.contact-side dd { margin: 6px 0 0; color: #d7e3e9; }

.site-footer { padding: 64px 0 26px; color: #a8bbc6; background: var(--navy-950); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3,1fr); gap: 46px; }
.footer-brand strong { display: block; color: white; font-size: 24px; letter-spacing: .08em; }
.footer-brand p { max-width: 380px; margin: 14px 0 0; font-size: 14px; }
.footer-col b { display: block; margin-bottom: 14px; color: white; }
.footer-col a, .footer-col span { display: block; margin: 8px 0; font-size: 14px; }
.footer-phone { color: #82e4dd !important; font-size: 20px !important; font-weight: 900; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 48px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); font-size: 12px; }

.float-contact { position: fixed; right: 18px; bottom: 110px; z-index: 45; width: 56px; border-radius: 14px; overflow: hidden; box-shadow: var(--shadow-lg); }
.float-contact a { min-height: 56px; display: grid; place-items: center; padding: 8px 5px; color: white; background: var(--teal-600); font-size: 11px; font-weight: 800; text-align: center; line-height: 1.3; }
.float-contact a + a { border-top: 1px solid rgba(255,255,255,.22); background: var(--navy-800); }
.float-contact a:hover { color: white; filter: brightness(1.08); }
.mobile-contact { display: none; }

/* Modernized legacy home structure */
.classic-banner { position: relative; overflow: hidden; min-height: 430px; color: white; background: linear-gradient(115deg,#071c2c 0%,#103b57 60%,#0b6e72 100%); }
.classic-banner::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px); background-size: 42px 42px; mask-image: linear-gradient(90deg,transparent,#000); }
.classic-banner-inner { position: relative; min-height: 430px; display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 60px; }
.classic-banner h1 { margin: 0; font-size: clamp(40px,5vw,64px); line-height: 1.2; letter-spacing: -.035em; }
.classic-banner h1 span { color: #85e5df; }
.classic-banner p:not(.eyebrow) { max-width: 670px; margin: 20px 0 0; color: #bed0da; font-size: 17px; }
.classic-banner-graphic { position: relative; height: 330px; }
.graphic-ring { position: absolute; left: 50%; top: 50%; border: 1px solid rgba(126,229,222,.33); border-radius: 50%; transform: translate(-50%,-50%); }
.ring-one { width: 285px; height: 285px; }.ring-two { width: 205px; height: 205px; box-shadow: 0 0 70px rgba(20,184,173,.18); }
.graphic-core { position: absolute; left: 50%; top: 50%; width: 114px; height: 114px; display: grid; place-items: center; border-radius: 50%; color: white; background: linear-gradient(145deg,var(--teal-500),var(--navy-800)); transform: translate(-50%,-50%); text-align: center; font-weight: 900; line-height: 1.4; box-shadow: 0 0 0 15px rgba(20,184,173,.08); }
.graphic-node { position: absolute; min-width: 72px; padding: 10px 14px; border: 1px solid rgba(255,255,255,.18); border-radius: 9px; color: #d8e8ee; background: rgba(6,21,34,.64); text-align: center; font-size: 13px; }
.node-one { left: 2%; top: 21%; }.node-two { right: 1%; top: 28%; }.node-three { right: 16%; bottom: 8%; }

.classic-summary { padding: 30px 0 38px; background: #edf3f6; }
.classic-summary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.classic-recommend,.classic-industry { border: 1px solid var(--line); background: white; box-shadow: var(--shadow-sm); }
.classic-block-title { min-height: 55px; display: flex; align-items: center; justify-content: space-between; padding: 0 22px; border-bottom: 1px solid var(--line); }
.classic-block-title h2 { margin: 0; color: var(--navy-950); font-size: 20px; }
.classic-block-title h2::before { content: ""; display: inline-block; width: 4px; height: 18px; margin-right: 10px; background: var(--teal-500); vertical-align: -2px; }
.classic-block-title a { color: var(--muted); font-size: 12px; }
.recommend-body { display: grid; grid-template-columns: 1.08fr .92fr; min-height: 250px; }
.recommend-feature { position: relative; padding: 30px 26px; color: white; background: linear-gradient(145deg,var(--navy-800),#0b7575); }
.recommend-feature > span { display: inline-flex; padding: 3px 9px; border-radius: 999px; color: #063238; background: #86e7e1; font-size: 11px; font-weight: 900; }
.recommend-feature strong,.recommend-feature h1 { display: block; margin: 18px 0 10px; color: white; font-size: 21px; line-height: 1.45; }
.recommend-feature p { margin: 0 0 18px; color: #c4d9e2; font-size: 13px; }
.recommend-feature a { color: #8ce9e3; font-size: 13px; font-weight: 800; }
.home-discovery { margin: 12px 0 0; padding: 0 0 0 2px; list-style: none; display: grid; gap: 12px; }
.home-discovery li { display: grid; grid-template-columns: 26px 1fr; gap: 2px 10px; }
.home-discovery b { grid-row: span 2; color: var(--teal-600); font-size: 15px; font-weight: 800; }
.home-discovery strong { color: var(--navy-900); font-size: 14px; }
.home-discovery span { color: #62777f; font-size: 13px; line-height: 1.6; }
.recommend-body ul,.compact-news-list,.dated-news-list { margin: 0; padding: 17px 22px; list-style: none; }
.recommend-body li { border-bottom: 1px dashed var(--line); }
.recommend-body li:last-child { border: 0; }
.recommend-body li a { display: block; padding: 11px 0; color: #334b5c; font-size: 14px; }
.recommend-body li a::before { content: "›"; margin-right: 8px; color: var(--teal-600); font-weight: 900; }
.compact-news-list li { position: relative; padding-left: 15px; border-bottom: 1px dashed var(--line); }
.compact-news-list li::before { content: ""; position: absolute; left: 0; top: 19px; width: 4px; height: 4px; border-radius: 50%; background: var(--teal-600); }
.compact-news-list a { display: block; overflow: hidden; padding: 9px 0; color: #3e5363; font-size: 14px; text-overflow: ellipsis; white-space: nowrap; }

.classic-info { padding: 48px 0; background: white; }
.classic-info-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 22px; }
.classic-news,.classic-about { border: 1px solid var(--line); }
.classic-tab-title { min-height: 58px; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; color: white; background: var(--navy-800); }
.classic-tab-title h2 { margin: 0; font-size: 20px; }.classic-tab-title a { color: #a9c0cd; font-size: 11px; letter-spacing: .08em; }
.dated-news-list { padding: 16px 24px 20px; }
.dated-news-list li { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 20px; border-bottom: 1px dashed var(--line); }
.dated-news-list a { overflow: hidden; padding: 10px 0; color: #3a4f5e; font-size: 14px; text-overflow: ellipsis; white-space: nowrap; }
.dated-news-list a::before { content: "•"; margin-right: 9px; color: var(--teal-600); }
.dated-news-list time { align-self: center; color: #98a5ad; font-size: 12px; }
.about-body { position: relative; min-height: 290px; padding: 28px 26px; overflow: hidden; }
.about-mark { position: absolute; right: -8px; bottom: -42px; color: #eef3f5; font-size: 120px; font-weight: 900; letter-spacing: -.1em; }
.about-body p { position: relative; z-index: 1; margin: 0; color: #4d606e; font-size: 14px; line-height: 2; text-align: justify; }
.about-body a { position: relative; z-index: 1; display: inline-block; margin-top: 20px; color: var(--teal-600); font-size: 13px; font-weight: 800; }

.knowledge-home { padding: 58px 0 62px; background: linear-gradient(145deg,#08243a,#0d4052); }
.knowledge-home-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 44px; margin-bottom: 28px; }
.knowledge-home-head small { color: #7edfd8; font-size: 11px; font-weight: 850; letter-spacing: .16em; }
.knowledge-home-head h2 { margin: 7px 0 8px; color: white; font-size: clamp(27px,3vw,38px); line-height: 1.3; }
.knowledge-home-head p { max-width: 720px; margin: 0; color: #b8cdd6; font-size: 14px; }
.knowledge-home-head > a { flex: 0 0 auto; padding: 11px 17px; border: 1px solid rgba(126,223,216,.5); border-radius: 8px; color: #8ce9e3; font-size: 13px; font-weight: 800; }
.knowledge-area-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.knowledge-area-card { position: relative; min-height: 245px; display: flex; flex-direction: column; overflow: hidden; padding: 27px 25px 24px; border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.075); transition: .2s ease; }
.section-soft .knowledge-area-card,.section .knowledge-area-card { border-color: var(--line); background: white; box-shadow: var(--shadow-sm); }
.knowledge-area-card:hover { color: inherit; border-color: rgba(68,210,201,.65); transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.knowledge-area-card > span { position: absolute; right: 18px; top: 9px; color: rgba(120,226,219,.13); font-size: 65px; font-weight: 900; line-height: 1; }
.section-soft .knowledge-area-card > span,.section .knowledge-area-card > span { color: #e4f3f2; }
.knowledge-area-card small { position: relative; z-index: 1; color: #74d8d1; font-size: 11px; font-weight: 800; letter-spacing: .08em; }
.section-soft .knowledge-area-card small,.section .knowledge-area-card small { color: var(--teal-600); }
.knowledge-area-card strong { position: relative; z-index: 1; margin-top: 9px; color: white; font-size: 20px; }
.section-soft .knowledge-area-card strong,.section .knowledge-area-card strong { color: var(--navy-950); }
.knowledge-area-card p { position: relative; z-index: 1; margin: 13px 0 0; color: #bed0d8; font-size: 13px; line-height: 1.85; }
.section-soft .knowledge-area-card p,.section .knowledge-area-card p { color: var(--muted); }
.knowledge-area-card em { position: relative; z-index: 1; margin-top: auto; padding-top: 18px; color: #83e3dd; font-size: 12px; font-style: normal; font-weight: 800; }
.section-soft .knowledge-area-card em,.section .knowledge-area-card em { color: var(--teal-600); }
.knowledge-discovery { margin-bottom: 22px; padding: 20px 22px; border: 1px solid #d5e6e7; background: #edf7f6; }
.knowledge-discovery h3 { margin: 0 0 13px; color: var(--navy-900); font-size: 17px; }
.knowledge-discovery ul { display: grid; grid-template-columns: repeat(2,1fr); gap: 9px 22px; margin: 0; padding: 0; list-style: none; }
.knowledge-discovery li { display: grid; grid-template-columns: auto 1fr; gap: 0 8px; color: #536a75; font-size: 12px; }
.knowledge-discovery strong { color: var(--teal-600); }.knowledge-discovery span { min-width: 0; }
.knowledge-detail-guide { padding: 20px 22px; border: 1px solid #d5e6e7; background: #f2f9f8; }
.knowledge-detail-guide > p { margin: 0 0 10px; color: #657984; }
.discovery-card-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 15px; margin: 0; padding: 0; list-style: none; }
.discovery-card-grid li { min-height: 175px; display: flex; flex-direction: column; padding: 23px 22px; border: 1px solid var(--line); background: white; box-shadow: var(--shadow-sm); }
.discovery-card-grid b { color: #8dcac6; font-size: 13px; }.discovery-card-grid strong { margin-top: 12px; color: var(--navy-950); font-size: 18px; }.discovery-card-grid span { margin-top: 8px; color: var(--muted); font-size: 13px; }

.classic-products { padding: 10px 0 58px; background: white; }
.classic-product-group { margin-top: 42px; }
.classic-title-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 17px; padding-bottom: 12px; border-bottom: 2px solid var(--navy-800); }
.classic-title-row h2 { margin: 0; color: var(--navy-950); font-size: 24px; }
.classic-title-row a { color: var(--muted); font-size: 12px; }
.classic-product-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.classic-product-card { overflow: hidden; border: 1px solid var(--line); background: white; transition: .2s ease; }
.classic-product-card:hover { color: inherit; border-color: #9bcfcb; transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.classic-product-visual { position: relative; height: 146px; display: grid; place-items: center; overflow: hidden; color: white; background: linear-gradient(145deg,#edf5f7,#d6e8ed); }
.classic-product-visual::before { content: ""; width: 100px; height: 72px; border: 2px solid #83b9c1; border-radius: 8px; background: linear-gradient(150deg,#f8fbfc,#c4dce1); box-shadow: 10px 12px 0 rgba(31,83,105,.11); }
.classic-product-visual::after { content: ""; position: absolute; width: 42px; height: 6px; border-radius: 999px; background: #15aaa2; box-shadow: 0 14px 0 #8daab5,0 28px 0 #8daab5; }
.classic-product-visual::before,.classic-product-visual::after { display: none; }
.classic-product-visual img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; transition: transform .22s ease; }
.classic-product-card:hover .classic-product-visual img { transform: scale(1.04); }
.classic-product-visual b { position: absolute; left: 14px; top: 10px; z-index: 1; color: #aec6ce; font-size: 26px; }.classic-product-visual i { position: absolute; right: 13px; bottom: 8px; color: #9cb7c0; font-size: 12px; font-style: normal; }
.classic-product-card > strong { display: block; padding: 18px 18px 8px; color: var(--navy-950); font-size: 17px; }
.classic-product-card > p { min-height: 55px; margin: 0; padding: 0 18px; color: var(--muted); font-size: 13px; }
.classic-product-card > em { display: block; margin: 16px 18px 20px; color: var(--teal-600); font-size: 12px; font-style: normal; font-weight: 800; }

.classic-contact-strip { padding: 28px 0; color: white; background: linear-gradient(90deg,var(--navy-800),var(--teal-600)); }
.classic-contact-strip .shell { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.classic-contact-strip strong { display: block; font-size: 23px; }.classic-contact-strip span { display: block; margin-top: 4px; color: #cce3e6; font-size: 13px; }
.classic-contact-strip a { display: flex; flex-direction: column; align-items: flex-end; color: white; font-size: 28px; font-weight: 900; letter-spacing: .04em; }.classic-contact-strip a small { font-size: 11px; font-weight: 500; }

@media (max-width: 1020px) {
  .header-slogan { display: none; }
  .cat-tiles { grid-template-columns: repeat(3,1fr); }
  .hero-grid { gap: 38px; }.hero-panel { min-height: 400px; }.map-node { width: 112px; font-size: 12px; }
  .value-grid { gap: 38px; }
  .product-overview { grid-template-columns: repeat(2,1fr); }
  .classic-product-grid { grid-template-columns: repeat(2,1fr); }
  .knowledge-area-grid,.discovery-card-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 820px) {
  .shell { width: min(100% - 32px, 700px); }
  .header-inner { min-height: 74px; }.brand-copy small { display: none; }.header-phone strong { font-size: 20px; }
  /* Folding menu instead of a horizontally scrolled bar: the old version hid every
     dropdown at this width, which made all six product categories unreachable on phones. */
  .nav-toggle { display: flex; }
  .menu-bar .shell { width: min(100% - 32px, 700px); }
  .main-nav { display: none; flex-direction: column; align-items: stretch; padding: 6px 0 10px; }
  .menu-bar.open .main-nav { display: flex; }
  .main-nav > a,.nav-item > a { min-height: 48px; display: flex; align-items: center; justify-content: flex-start; padding: 0; border-left: 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .main-nav > :last-child > a,.main-nav > a:last-child { border-right: 0; }
  .nav-item { display: block; }
  .nav-dropdown { position: static; visibility: visible; opacity: 1; transform: none; padding: 4px 0 8px 16px; border-top: 0; box-shadow: none; background: transparent; min-width: 0; }
  .nav-dropdown a { min-height: 42px; display: flex; align-items: center; color: #cfe3e8; font-size: 14px; border-bottom: 0; }
  .hero { padding: 68px 0 58px; }.hero-grid { grid-template-columns: 1fr; }.hero-panel { min-height: 390px; max-width: 580px; width: 100%; margin: 0 auto; }
  .capability-grid { grid-template-columns: repeat(2,1fr); }.capability-item:nth-child(3) { border-top: 1px solid rgba(255,255,255,.08); }.capability-item:nth-child(4) { border-top: 1px solid rgba(255,255,255,.08); }
  .section { padding: 72px 0; }.solutions-grid, .value-grid, .contact-layout { grid-template-columns: 1fr; }.value-copy { max-width: 680px; }.process-grid { grid-template-columns: repeat(2,1fr); row-gap: 38px; }.process-grid::before { display: none; }
  .product-head-grid, .product-detail-grid { grid-template-columns: 1fr; }.product-head-card { max-width: 560px; }
  .product-copy-grid { grid-template-columns: 1fr; }
  .classic-sub-layout { grid-template-columns: 1fr; }.classic-sidebar { display: none; }
  .legacy-detail-section { padding-top: 28px; }
  .knowledge-home-head { display: block; }.knowledge-home-head > a { display: inline-block; margin-top: 18px; }
  .recommend-body { grid-template-columns: 1fr; }.recommend-body ul { display: grid; grid-template-columns: 1fr 1fr; }
  .article-layout { padding: 48px 0 76px; }
  .legacy-catalog-card { grid-template-columns: 40% 60%; }
  .cta-card { grid-template-columns: 1fr; padding: 38px; }.cta-actions { flex-wrap: wrap; }
  .article-grid { grid-template-columns: repeat(2,1fr); }.faq-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2,1fr); }
  .classic-banner-inner { grid-template-columns: 1fr; padding: 54px 0; }.classic-banner-graphic { display: none; }.classic-summary-grid,.classic-info-grid { grid-template-columns: 1fr; }
  .float-contact { display: none; }.mobile-contact { position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; display: grid; grid-template-columns: 1fr 1.35fr; padding: 9px 12px calc(9px + env(safe-area-inset-bottom)); background: white; box-shadow: 0 -10px 34px rgba(6,21,34,.12); }.mobile-contact a { min-height: 44px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 9px 0 0 9px; color: var(--navy-800); font-weight: 750; }.mobile-contact a:last-child { border-color: var(--teal-600); border-radius: 0 9px 9px 0; color: white; background: var(--teal-600); }.site-footer { padding-bottom: 90px; }
}

@media (max-width: 560px) {
  .shell, .article-wrap { width: min(100% - 24px, 520px); }
  .product-category-list { grid-template-columns: 1fr; }
  .cat-tiles { grid-template-columns: repeat(2,1fr); }
  /* Scaled to phone width the diagram labels drop to ~4px and become unreadable, so the
     figure scrolls inside its own box instead — the page itself never scrolls sideways. */
  .diagram { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .diagram svg { min-width: 560px; }
  .diagram-cap::after { content: "（可左右滑动查看）"; color: var(--teal-600); }
  .brand { min-width: 0; gap: 9px; }.brand-mark { width: 38px; height: 38px; }.brand-copy strong { font-size: 17px; }.header-phone small { display: none; }.header-phone strong { font-size: 17px; }
  .hero h1 { font-size: 41px; }.hero-copy { font-size: 16px; }.hero-actions { display: grid; grid-template-columns: 1fr; }.button { width: 100%; }.hero-points { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
  .hero-panel { min-height: 345px; padding: 18px; }.security-map { height: 270px; }.map-core { width: 90px; height: 90px; font-size: 13px; }.map-node { width: 98px; padding: 10px 8px; }.node-a,.node-b { top: 24px; }.node-c,.node-d { bottom: 18px; }
  .capability-item { padding: 18px 14px; }.capability-item strong { font-size: 15px; }
  .section { padding: 58px 0; }.section-head { display: block; }.section-head-link { display: inline-block; margin-top: 14px; }
  .solutions-grid, .article-grid, .value-list { grid-template-columns: 1fr; }.solution-card { min-height: 0; padding: 28px 24px; }.article-card { min-height: 230px; }
  .product-overview { grid-template-columns: 1fr; }.product-card { min-height: 280px; }.product-detail-head { padding: 62px 0; }.product-info-card { padding: 28px 24px; }
  .process-grid { grid-template-columns: 1fr; }.process-item { display: grid; grid-template-columns: 52px 1fr; gap: 0 16px; text-align: left; }.process-num { grid-row: span 2; width: 48px; height: 48px; margin: 0; }.process-item h3 { align-self: end; }.process-item p { align-self: start; }
  .cta-band { padding-bottom: 58px; }.cta-card { padding: 30px 24px; }.cta-actions { display: block; }.cta-phone { display: block; margin-bottom: 16px; font-size: 22px; }
  .page-head { padding: 58px 0; }.article-wrap { padding: 52px 0 76px; }.article-body { font-size: 16px; }
  .legacy-category-banner { min-height: 116px; }.legacy-breadcrumb { padding: 11px 16px; text-align: left; }.legacy-column-title { padding: 0 16px; }.legacy-product-article { padding: 25px 18px 30px; }.legacy-product-content .product-nav { margin: 0 18px 28px; }.legacy-phone-line a { display: block; margin: 3px 0 0; }
  .search-box { display: grid; grid-template-columns: 1fr auto; }.contact-card,.contact-side { padding: 28px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }.footer-bottom { display: block; }
  .classic-banner { min-height: 0; }.classic-banner-inner { min-height: 0; padding: 46px 0; }.classic-banner h1 { font-size: 38px; }.classic-banner p:not(.eyebrow) { font-size: 15px; }.recommend-body { grid-template-columns: 1fr; }.recommend-body ul { display: grid; grid-template-columns: 1fr 1fr; }.recommend-body li:nth-child(3),.recommend-body li:nth-child(4) { border-bottom: 0; }.classic-product-grid { grid-template-columns: 1fr; }.classic-product-card { display: grid; grid-template-columns: 118px 1fr; grid-template-rows: auto auto auto; }.classic-product-visual { grid-row: 1 / 4; height: auto; min-height: 150px; }.classic-product-card > strong { padding-bottom: 5px; }.classic-product-card > p { min-height: 0; }.classic-product-card > em { margin-top: 8px; }.classic-contact-strip .shell { display: block; }.classic-contact-strip a { align-items: flex-start; margin-top: 16px; font-size: 24px; }
  .knowledge-area-grid,.discovery-card-grid { grid-template-columns: 1fr; }.knowledge-area-card { min-height: 220px; }.knowledge-discovery ul { grid-template-columns: 1fr; }
  .legacy-catalog-tabs { grid-template-columns: repeat(2,1fr); }.legacy-catalog-tabs a:nth-child(2) { border-right: 0; }.legacy-catalog-tabs a:nth-child(-n+2) { border-bottom: 1px solid var(--line); }.legacy-catalog-grid { grid-template-columns: 1fr; }.legacy-catalog-card { grid-template-columns: 130px minmax(0,1fr); min-height: 160px; }.legacy-product-pagination { justify-content: center; }
}