/* TST 特思特 中国 — 视觉取自 TST 原站蓝色标识与瑞典工业资料风格 */
:root {
  --blue: #0B5CFF;
  --blue-deep: #0847C7;
  --blue-soft: #E8F0FF;
  --navy: #071B3A;
  --navy-2: #0A2A66;
  --ink: #0B1624;
  --body: #33415A;
  --muted: #66758D;
  --paper: #F4F7FB;
  --paper-2: #EDF3FA;
  --white: #FFFFFF;
  --line: #D9E3F0;
  --line-2: #E8EEF7;
  --green: #0C4426;
  --amber: #FFB000;
  --wrap: 1240px;
  --radius: 2px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4 { color: var(--ink); margin: 0; font-weight: 650; letter-spacing: -0.02em; text-wrap: balance; }
h1 { font-size: clamp(2.5rem, 5.4vw, 4.9rem); line-height: 1.03; }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.75rem); line-height: 1.14; }
h3 { font-size: 1.18rem; line-height: 1.35; }
p { margin: 0 0 1em; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; }
code { font-family: var(--mono); font-size: .88em; background: var(--paper-2); padding: .12em .35em; border-radius: 2px; }
.wrap { width: min(var(--wrap), calc(100% - 48px)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip { position: fixed; left: 16px; top: -80px; z-index: 100; background: var(--blue); color: #fff; padding: 10px 16px; border-radius: 2px; }
.skip:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }

/* ── topbar / header ─────────────────────────── */
.topbar { background: var(--navy); color: #AFC0D8; font-size: 12px; letter-spacing: .02em; }
.topbar__inner { display: flex; justify-content: space-between; gap: 24px; align-items: center; min-height: 34px; }
.topbar__tag { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.topbar__links { display: flex; gap: 18px; }
.topbar a { color: #DCE7F5; }
.header { position: sticky; top: 0; z-index: 40; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); }
.header__inner { display: flex; align-items: center; gap: 28px; min-height: 78px; }
.logo { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); }
.logo:hover { text-decoration: none; }
.logo__mark { display: grid; place-items: center; width: 46px; height: 46px; background: var(--blue); color: #fff; font-weight: 800; font-size: 15px; letter-spacing: -.04em; border-radius: 4px; }
.logo__txt { display: flex; flex-direction: column; line-height: 1.1; }
.logo__txt strong { font-size: 10px; letter-spacing: .14em; font-weight: 700; }
.logo__txt span { font-size: 13px; color: var(--muted); margin-top: 4px; letter-spacing: .06em; }
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav__link { padding: 10px 12px; color: var(--body); font-size: 14px; font-weight: 550; border-radius: 2px; }
.nav__link:hover { color: var(--blue); background: var(--blue-soft); text-decoration: none; }
.nav__link.is-active { color: var(--blue); box-shadow: inset 0 -2px 0 var(--blue); }
.header__actions { display: flex; align-items: center; gap: 8px; margin-left: 8px; }
.icon-btn { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); background: #fff; border-radius: 2px; }
.icon-btn svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.header__cta { height: 42px; }
.menu-btn { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: #fff; border-radius: 2px; }
.menu-btn span { display: block; width: 18px; height: 2px; background: var(--ink); margin: 4px auto; transition: transform .2s; }
.searchbar { border-top: 1px solid var(--line); background: #fff; padding: 16px 0; }
.searchbar__inner { display: flex; align-items: center; gap: 12px; }
.searchbar__inner svg { width: 22px; height: 22px; fill: none; stroke: var(--muted); stroke-width: 1.8; flex: 0 0 auto; }
.searchbar input { flex: 1; min-width: 0; height: 46px; border: 1px solid var(--line); background: var(--paper); padding: 0 14px; border-radius: 2px; }
[hidden] { display: none !important; }

/* ── buttons / links ─────────────────────────── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 20px; border: 1px solid transparent; border-radius: 2px; font-size: 14px; font-weight: 650; letter-spacing: .01em; line-height: 1.2; transition: background .18s, border-color .18s, color .18s, transform .18s; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn--blue { background: var(--blue); color: #fff; }
.btn--blue:hover { background: var(--blue-deep); }
.btn--white { background: #fff; color: var(--navy-2); }
.btn--white:hover { background: var(--blue-soft); }
.btn--dark { background: var(--navy); color: #fff; }
.btn--outline { border-color: var(--line); background: transparent; color: var(--ink); }
.btn--outline:hover { border-color: var(--blue); color: var(--blue); }
.btn--ghost { border-color: rgba(255,255,255,.45); background: transparent; color: #fff; }
.btn--ghost:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn--lg { min-height: 52px; padding: 0 24px; font-size: 15px; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-weight: 600; font-size: 14px; }
.link-arrow:hover { text-decoration: none; gap: 12px; }
.text-link { display: inline-block; color: var(--blue); font-size: 14px; padding: 4px 0; }
.eyebrow { display: inline-block; font-family: var(--mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--blue); font-weight: 600; margin-bottom: 14px; }
.eyebrow--light { color: #8BB4FF; }

/* ── hero ────────────────────────────────────── */
.hero { position: relative; overflow: hidden; background: var(--navy); color: #DCE7F5; }
.hero__grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px); background-size: 64px 64px; mask-image: linear-gradient(to bottom, #000 0%, transparent 88%); }
.hero::after { content: ""; position: absolute; width: 560px; height: 560px; right: -180px; top: -160px; border-radius: 50%; background: radial-gradient(circle, rgba(11,92,255,.42), transparent 68%); }
.hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; padding: 84px 0 54px; }
.hero h1 { color: #fff; margin-bottom: 26px; }
.hero h1 span, .hero h1 em { display: block; }
.hero h1 em { font-style: normal; color: #7FA8FF; }
.hero__lead { max-width: 36em; font-size: 17px; line-height: 1.8; color: #B9C7DD; margin-bottom: 30px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 10px; }
.hero__source { margin: 24px 0 0; font-size: 12px; color: #7E92AE; max-width: 42em; }
.hero__visual { position: relative; min-height: 520px; display: grid; place-items: center; }
.hero__figure { position: relative; z-index: 2; width: min(430px, 82%); margin: 0; background: #EFF4FA; border-radius: 50%; padding: 22px; box-shadow: 0 30px 80px rgba(0,0,0,.28); }
.hero__figure img { border-radius: 50%; aspect-ratio: 1; object-fit: cover; background: #fff; }
.hero__figure figcaption { position: absolute; left: 50%; bottom: -34px; transform: translateX(-50%); white-space: nowrap; font-family: var(--mono); font-size: 10px; letter-spacing: .08em; color: #8FA4BF; }
.hero__ring { position: absolute; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; }
.hero__ring--1 { width: 470px; height: 470px; }
.hero__ring--2 { width: 570px; height: 570px; border-style: dashed; opacity: .55; }
.hero__chip { position: absolute; z-index: 3; background: rgba(8,25,53,.78); border: 1px solid rgba(255,255,255,.2); padding: 12px 14px; border-radius: 2px; backdrop-filter: blur(8px); line-height: 1.3; }
.hero__chip b { display: block; color: #fff; font-size: 16px; }
.hero__chip span { display: block; color: #93A9C5; font-size: 10px; letter-spacing: .06em; margin-top: 3px; }
.hero__chip--a { left: -8px; top: 18%; }
.hero__chip--b { right: -6px; bottom: 16%; }
.hero__facts { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.14); }
.hero__fact { padding: 20px 0 24px; border-right: 1px solid rgba(255,255,255,.14); }
.hero__fact:last-child { border-right: 0; }
.hero__fact b { display: block; color: #fff; font-size: 24px; font-weight: 650; letter-spacing: -.02em; }
.hero__fact span { display: block; color: #8FA4BF; font-size: 12px; margin-top: 2px; }

/* ── sections ────────────────────────────────── */
.section { padding: 92px 0; }
.section--tight { padding: 44px 0; }
.section--families { background: var(--white); }
.section--why { background: var(--paper); }
.section--applications { background: var(--white); }
.section--knowledge { background: var(--paper); }
.section--table { background: var(--white); }
.section-head { margin-bottom: 44px; max-width: 820px; }
.section-head h2 { margin-bottom: 14px; }
.section-head p { max-width: 62ch; color: var(--muted); margin: 0; }
.section-head--split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; max-width: none; align-items: end; }
.section-head--split p { max-width: 46ch; padding-bottom: 4px; }

/* ── family cards ────────────────────────────── */
.family-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.family-card { position: relative; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); color: var(--body); transition: border-color .2s, transform .2s; }
.family-card:hover { text-decoration: none; border-color: var(--blue); transform: translateY(-3px); }
.family-card__index { position: absolute; top: 12px; left: 14px; z-index: 2; font-family: var(--mono); font-size: 11px; letter-spacing: .1em; color: var(--muted); }
.family-card__media { margin: 0; background: var(--paper); aspect-ratio: 1 / .86; display: grid; place-items: center; padding: 28px; overflow: hidden; }
.family-card__media img { width: 100%; height: 100%; object-fit: contain; transition: transform .3s; }
.family-card:hover .family-card__media img { transform: scale(1.04); }
.family-card__body { padding: 20px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.family-card h3 { margin-bottom: 4px; }
.family-card__short { color: var(--blue); font-size: 13px; font-weight: 600; margin-bottom: 10px; }
.family-card__desc { font-size: 14px; line-height: 1.7; color: var(--muted); margin-bottom: 16px; flex: 1; }
.family-card__meta { font-family: var(--mono); font-size: 11px; color: var(--ink); letter-spacing: .03em; display: flex; justify-content: space-between; gap: 10px; border-top: 1px solid var(--line-2); padding-top: 12px; }
.family-card__meta i { font-style: normal; color: var(--blue); }

/* ── why ─────────────────────────────────────── */
.why-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.why-copy h2 { margin-bottom: 18px; }
.why-lead { color: var(--muted); max-width: 48ch; }
.why-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; margin: 28px 0 26px; }
.why-list li { border-top: 1px solid var(--line); padding: 16px 0; }
.why-list b { display: block; color: var(--ink); font-size: 15px; margin-bottom: 4px; }
.why-list span { display: block; font-size: 13px; line-height: 1.65; color: var(--muted); }
.why-media { margin: 0; border: 1px solid var(--line); background: #fff; padding: 10px; }
.why-media img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }
.why-media figcaption { font-family: var(--mono); font-size: 10px; letter-spacing: .04em; color: var(--muted); padding: 10px 4px 2px; }

/* ── applications ────────────────────────────── */
.app-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.app-tile { position: relative; display: block; min-height: 290px; overflow: hidden; background: var(--navy); border-radius: var(--radius); color: #fff; }
.app-tile:nth-child(1), .app-tile:nth-child(2) { grid-column: span 3; }
.app-tile:nth-child(n+3) { grid-column: span 2; }
.app-tile img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .4s; opacity: .82; }
.app-tile:hover img { transform: scale(1.04); }
.app-tile__shade { position: absolute; inset: 0; background: linear-gradient(to top, rgba(6,20,42,.92), rgba(6,20,42,.18) 65%, rgba(6,20,42,.05)); }
.app-tile:hover { text-decoration: none; }
.app-tile__no { position: absolute; top: 16px; left: 16px; font-family: var(--mono); font-size: 11px; letter-spacing: .12em; color: #B9CBE6; }
.app-tile__body { position: absolute; left: 20px; right: 20px; bottom: 18px; display: flex; flex-direction: column; gap: 2px; }
.app-tile__body strong { font-size: 22px; letter-spacing: -.01em; }
.app-tile__body span { font-size: 12px; color: #C9D6E7; }

/* ── model band ──────────────────────────────── */
.model-band { background: var(--navy-2); color: #C8D7EA; padding: 72px 0; }
.model-band__inner { display: grid; grid-template-columns: 1.2fr .8fr; gap: 56px; align-items: end; }
.model-band h2 { color: #fff; font-size: clamp(2rem, 3.6vw, 3.2rem); margin-bottom: 16px; }
.model-band h2 b { color: #7FA8FF; font-size: 1.22em; font-weight: 700; }
.model-band p { max-width: 60ch; font-size: 14px; color: #B7C8DD; }
.model-band__actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }
.model-band__counts { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid rgba(255,255,255,.18); }
.model-band__counts a { padding: 18px; border-right: 1px solid rgba(255,255,255,.14); border-bottom: 1px solid rgba(255,255,255,.14); color: #fff; }
.model-band__counts a:nth-child(even) { border-right: 0; }
.model-band__counts a:nth-last-child(-n+2) { border-bottom: 0; }
.model-band__counts a:hover { background: rgba(255,255,255,.07); text-decoration: none; }
.model-band__counts b { display: block; font-size: 30px; line-height: 1.1; }
.model-band__counts span { font-size: 12px; color: #9FB4CE; }

/* ── knowledge ───────────────────────────────── */
.knowledge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.knowledge-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); padding: 24px; min-height: 260px; transition: border-color .2s, transform .2s; }
.knowledge-card:hover { text-decoration: none; border-color: var(--blue); transform: translateY(-3px); }
.knowledge-card__meta { font-family: var(--mono); font-size: 10px; letter-spacing: .08em; color: var(--blue); text-transform: uppercase; margin-bottom: 20px; }
.knowledge-card h3 { margin-bottom: 12px; font-size: 20px; }
.knowledge-card p { font-size: 14px; color: var(--muted); flex: 1; }
.knowledge-more { display: flex; gap: 28px; flex-wrap: wrap; margin-top: 28px; }
.provenance { background: #fff; border-top: 1px solid var(--line); padding: 54px 0; }
.provenance__inner { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: start; }
.provenance h2 { font-size: 28px; }
.provenance p { font-size: 14px; color: var(--muted); margin: 0; max-width: 65ch; }

/* ── page hero ───────────────────────────────── */
.page-hero { background: var(--paper); padding: 54px 0 64px; border-bottom: 1px solid var(--line); }
.page-hero--compact { padding: 44px 0 50px; }
.page-hero h1 { font-size: clamp(2.3rem, 4.6vw, 4rem); margin-bottom: 18px; }
.page-hero__lead { max-width: 64ch; color: var(--muted); font-size: 16px; }
.page-hero__row { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: end; }
.page-hero__stats { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.page-hero__stats > div { padding: 18px 0; border-bottom: 1px solid var(--line); }
.page-hero__stats b { display: block; font-size: 26px; color: var(--ink); line-height: 1.1; }
.page-hero__stats span { font-size: 12px; color: var(--muted); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 12px; color: var(--muted); margin-bottom: 26px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--blue); }
.breadcrumb span[aria-current] { color: var(--ink); }
.breadcrumb--on-dark, .breadcrumb--on-dark a { color: #9FB4CE; }
.breadcrumb--on-dark span[aria-current] { color: #fff; }

/* ── category / series / product heroes ─────── */
.category-hero { background: var(--navy); color: #C6D5E8; padding: 42px 0 0; }
.category-hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: end; }
.category-hero__copy { padding-bottom: 56px; }
.category-hero h1 { color: #fff; margin-bottom: 8px; }
.category-hero__short { color: #8BB4FF; font-size: 18px; font-weight: 600; margin-bottom: 18px; }
.category-hero__copy p { max-width: 52ch; color: #B9C7DD; }
.feature-pills { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 26px; }
.feature-pills li { font-size: 12px; border: 1px solid rgba(255,255,255,.25); padding: 5px 10px; color: #E4EDF9; }
.category-hero__actions { display: flex; gap: 10px; flex-wrap: wrap; }
.category-hero__media { margin: 0; align-self: end; }
.category-hero__media img { width: 100%; max-height: 470px; object-fit: contain; background: var(--paper); padding: 26px; }
.category-hero__media figcaption { font-family: var(--mono); font-size: 10px; color: #8DA3BF; padding: 8px 0; }

.series-hero { background: var(--paper); border-bottom: 1px solid var(--line); padding: 40px 0 0; }
.series-hero__grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: end; }
.series-hero__copy { padding-bottom: 48px; }
.series-hero h1 { font-size: clamp(2.2rem, 4.2vw, 3.5rem); margin-bottom: 10px; }
.series-hero__short { color: var(--blue); font-weight: 600; font-size: 17px; margin-bottom: 16px; }
.series-hero__copy p { max-width: 54ch; color: var(--muted); }
.series-hero__actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.series-hero__media { margin: 0; align-self: end; }
.series-hero__media img { width: 100%; max-height: 420px; object-fit: contain; border: 1px solid var(--line); background: #fff; padding: 28px; }
.series-hero__media figcaption { font-family: var(--mono); font-size: 10px; color: var(--muted); padding: 8px 0; }

.spec-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.spec-strip > div { padding: 16px 18px 16px 0; border-right: 1px solid var(--line); }
.spec-strip > div:last-child { border-right: 0; }
.spec-strip span { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.spec-strip b { font-size: 13px; color: var(--ink); font-weight: 600; }

.series-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 64px; align-items: start; }
.series-layout__main h2 { margin-bottom: 18px; }
.series-layout__aside { border-left: 1px solid var(--line); padding-left: 32px; }
.series-layout__aside h3 { font-size: 13px; font-family: var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin: 24px 0 10px; }
.series-layout__aside h3:first-child { margin-top: 0; }
.series-layout__aside .text-link { display: block; }
.series-copy { color: var(--muted); font-size: 14px; max-width: 62ch; }
.check-list { list-style: none; margin: 0 0 20px; }
.check-list li { position: relative; padding: 10px 0 10px 24px; border-bottom: 1px solid var(--line-2); color: var(--body); font-size: 14px; }
.check-list li::before { content: ""; position: absolute; left: 2px; top: 17px; width: 8px; height: 8px; border: 1.5px solid var(--blue); }
.series-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.series-grid--compact { margin-top: 24px; }
.series-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); color: var(--body); transition: border-color .2s, transform .2s; }
.series-card:hover { text-decoration: none; border-color: var(--blue); transform: translateY(-2px); }
.series-card figure { margin: 0; background: var(--paper); padding: 22px; aspect-ratio: 1 / .72; display: grid; place-items: center; }
.series-card figure img { width: 100%; height: 100%; object-fit: contain; }
.series-card__body { padding: 16px 18px 18px; }
.series-card__meta { font-family: var(--mono); font-size: 10px; color: var(--muted); letter-spacing: .04em; }
.series-card h3 { font-size: 17px; margin: 6px 0 4px; }
.series-card p { font-size: 13px; color: var(--muted); margin: 0; }

/* ── product ─────────────────────────────────── */
.product-hero { background: var(--paper); border-bottom: 1px solid var(--line); padding: 34px 0 56px; }
.product-hero__grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 56px; align-items: center; }
.product-hero__media { margin: 0; background: #fff; border: 1px solid var(--line); padding: 16px; }
.product-hero__media img { width: 100%; aspect-ratio: 1; object-fit: contain; background: #fff; }
.product-hero__media figcaption { font-size: 10px; color: var(--muted); padding: 10px 2px 0; line-height: 1.5; }
.product-hero h1 { font-size: clamp(2rem, 3.6vw, 3.2rem); margin-bottom: 10px; }
.product-hero__model { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.product-hero__model b { font-family: var(--mono); font-size: 16px; color: var(--ink); letter-spacing: .02em; }
.copy-btn { border: 1px solid var(--line); background: #fff; font-size: 10px; padding: 2px 7px; color: var(--muted); border-radius: 2px; }
.copy-btn:hover { color: var(--blue); border-color: var(--blue); }
.product-hero__tagline { font-size: 16px; color: var(--blue); font-weight: 600; margin-bottom: 14px; }
.product-hero__desc { color: var(--muted); max-width: 58ch; }
.product-hero__specs { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); margin: 22px 0; }
.spec-cell { padding: 11px 12px 11px 0; border-bottom: 1px solid var(--line); }
.spec-cell span { display: block; font-family: var(--mono); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.spec-cell b { display: block; font-size: 13px; color: var(--ink); line-height: 1.45; margin-top: 2px; }
.product-hero__actions { display: flex; gap: 10px; flex-wrap: wrap; }
.product-hero__source { font-family: var(--mono); font-size: 10px; color: var(--muted); margin: 16px 0 0; }
.product-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.product-facts > div { padding: 14px 18px 14px 0; border-right: 1px solid var(--line); }
.product-facts > div:last-child { border-right: 0; }
.product-facts span { display: block; font-family: var(--mono); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.product-facts b { font-size: 12px; color: var(--ink); font-weight: 600; }
.product-body { display: grid; grid-template-columns: 1.24fr .76fr; gap: 56px; align-items: start; }
.product-body__main h2 { margin: 40px 0 16px; }
.product-body__main h2:first-of-type { margin-top: 0; }
.product-body__main p { color: var(--muted); max-width: 64ch; }
.product-aside { position: sticky; top: 98px; display: flex; flex-direction: column; gap: 16px; }
.aside-card { border: 1px solid var(--line); background: #fff; padding: 22px; }
.aside-card h3 { font-size: 17px; margin-bottom: 14px; }
.aside-card--note { background: var(--paper); }
.aside-card--note p { font-size: 13px; color: var(--muted); }
.doc-link { display: flex; flex-direction: column; gap: 1px; padding: 11px 0; border-bottom: 1px solid var(--line-2); color: var(--ink); font-size: 13px; }
.doc-link small { color: var(--muted); font-size: 11px; }
.doc-link:hover { color: var(--blue); text-decoration: none; }
.source-list { margin: 14px 0 0; }
.source-list > div { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-top: 1px solid var(--line-2); font-size: 11px; }
.source-list dt { color: var(--muted); }
.source-list dd { margin: 0; text-align: right; color: var(--ink); font-family: var(--mono); }
.related-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 20px; }
.related-card { display: flex; flex-direction: column; border: 1px solid var(--line); padding: 12px 14px; color: var(--body); }
.related-card:hover { text-decoration: none; border-color: var(--blue); }
.related-card__model { font-family: var(--mono); font-size: 12px; color: var(--blue); }
.related-card__name { font-size: 13px; color: var(--ink); }
.related-card__meta { font-size: 11px; color: var(--muted); }

/* ── inquiry ─────────────────────────────────── */
.section--inquiry { background: var(--paper); border-top: 1px solid var(--line); }
.inquiry-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; align-items: start; }
.inquiry-layout__copy h2 { margin-bottom: 14px; }
.inquiry-layout__copy p { color: var(--muted); max-width: 42ch; }
.contact-mini { display: flex; flex-direction: column; gap: 4px; margin-top: 24px; font-size: 14px; }
.contact-mini span { color: var(--muted); font-size: 12px; }
.inquiry-form { background: #fff; border: 1px solid var(--line); padding: 26px; }
.inquiry-form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.field { display: block; margin-bottom: 14px; }
.field--inline { display: flex; align-items: center; gap: 8px; margin: 0; }
.field__label { display: block; font-size: 12px; font-weight: 600; color: var(--ink); margin-bottom: 5px; }
.field--inline .field__label { margin: 0; white-space: nowrap; }
.field__label em { color: var(--blue); font-style: normal; }
.field input, .field textarea, .field select { width: 100%; border: 1px solid var(--line); background: var(--white); padding: 10px 12px; border-radius: 2px; font-size: 14px; }
.field input, .field select { height: 42px; }
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--blue); outline: 2px solid var(--blue-soft); }
.field--inline input { width: 210px; height: 36px; }
.field--inline select { width: auto; height: 36px; padding-right: 28px; }
.field--trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.inquiry-form__foot { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 6px; }
.inquiry-form__note { font-size: 11px; color: var(--muted); }
.inquiry-form__status { margin: 12px 0 0; font-size: 13px; color: var(--green); }
.inquiry-form__status.is-error { color: #B42318; }

/* ── tables ──────────────────────────────────── */
.table-wrap { width: 100%; overflow: visible; }
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; line-height: 1.5; }
.data-table th, .data-table td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--line-2); vertical-align: top; }
.data-table thead th { position: sticky; top: 78px; z-index: 2; background: var(--paper); color: var(--muted); font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; font-weight: 600; border-bottom: 1px solid var(--line); }
.data-table tbody tr:hover { background: var(--blue-soft); }
.data-table tbody th { font-weight: 600; color: var(--ink); }
.data-table a { color: var(--ink); }
.data-table a:hover { color: var(--blue); }
.cell-model { font-family: var(--mono); font-size: 12px; white-space: nowrap; }
.cell-model a { color: var(--blue); font-weight: 600; }
.cell-name { font-weight: 550; }
.cell-mono { font-family: var(--mono); font-size: 12px; white-space: nowrap; }
.cell-color { display: block; font-family: var(--mono); font-size: 10px; color: var(--muted); }
.cell-source { font-size: 11px; white-space: nowrap; }
.cell-source a { color: var(--muted); }
.badge { display: inline-block; font-family: var(--mono); font-size: 10px; padding: 2px 6px; border: 1px solid var(--line); color: var(--muted); }
.badge--ip { color: var(--green); border-color: #BFD8C7; background: #F1F8F3; }
.model-table__bar { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; padding: 12px; background: var(--paper); border: 1px solid var(--line); border-bottom: 0; }
.model-table__count { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--muted); }
.model-table__csv { font-size: 12px; font-weight: 600; }
.model-table__empty { padding: 18px; border: 1px solid var(--line); border-top: 0; font-size: 14px; color: var(--muted); }
.model-table .table-wrap { border: 1px solid var(--line); }
.data-table--spec th[scope="row"] { width: 34%; }
.data-table--spec td { width: 42%; }
.data-table--spec td:last-child { width: 24%; }
.data-table--article { margin: 18px 0 24px; }
.data-table--verify td:first-child { width: 34%; font-weight: 600; color: var(--ink); }
.table-note { font-size: 12px; color: var(--muted); margin-top: 14px; max-width: 80ch; }
.data-table--index td, .data-table--index th { padding: 10px 12px; }

/* ── apps list ───────────────────────────────── */
.app-list { border-top: 1px solid var(--line); }
.app-row { display: grid; grid-template-columns: 180px 1fr 40px; gap: 28px; align-items: center; padding: 24px 0; border-bottom: 1px solid var(--line); color: var(--body); }
.app-row:hover { text-decoration: none; background: var(--paper); }
.app-row figure { margin: 0; background: var(--paper); padding: 10px; }
.app-row figure img { aspect-ratio: 1; object-fit: contain; }
.app-row__body h2 { font-size: 26px; margin: 4px 0 8px; }
.app-row__body p { color: var(--muted); font-size: 14px; max-width: 70ch; margin-bottom: 8px; }
.app-row__source { font-family: var(--mono); font-size: 10px; color: var(--muted); }
.app-row__arrow { font-size: 24px; color: var(--blue); }

/* ── app detail ──────────────────────────────── */
.application-hero { background: var(--navy); color: #C6D5E8; padding: 40px 0 0; }
.application-hero__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: end; }
.application-hero h1 { color: #fff; font-size: clamp(2.3rem, 4.4vw, 3.8rem); margin-bottom: 16px; }
.application-hero__lead { color: #B9C7DD; max-width: 54ch; }
.application-hero__source { display: inline-block; font-family: var(--mono); font-size: 10px; color: #8BB4FF; margin-top: 20px; padding-bottom: 40px; }
.application-hero figure { margin: 0; align-self: end; }
.application-hero figure img { width: 100%; max-height: 430px; object-fit: contain; background: var(--paper); padding: 26px; }
.application-body { display: grid; grid-template-columns: 1.2fr .8fr; gap: 64px; align-items: start; }
.application-body__main p { color: var(--muted); max-width: 66ch; }
.application-body__main h2 { margin: 34px 0 16px; }
.application-aside { border: 1px solid var(--line); background: var(--paper); padding: 24px; position: sticky; top: 98px; }
.application-aside h2 { font-size: 20px; margin-bottom: 14px; }
.application-aside .btn { width: 100%; margin-top: 8px; }
.application-aside .text-link { display: block; margin-top: 10px; text-align: center; }

/* ── downloads ───────────────────────────────── */
.lang-summary { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.lang-summary > div { padding: 18px 0; border-right: 1px solid var(--line); }
.lang-summary > div:last-child { border-right: 0; }
.lang-summary b { display: block; font-size: 28px; color: var(--ink); }
.lang-summary span { font-size: 12px; color: var(--muted); }
.download-list { border-top: 1px solid var(--line); }
.download-row { display: grid; grid-template-columns: 110px 1fr 150px; gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line); color: var(--body); align-items: start; }
.download-row:hover { text-decoration: none; background: var(--paper); }
.download-row__type { font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--blue); padding-top: 4px; }
.download-row__body strong { display: block; font-size: 16px; color: var(--ink); margin-bottom: 3px; }
.download-row__body span { display: block; font-size: 13px; color: var(--muted); max-width: 70ch; }
.download-row__body small { display: block; font-size: 10px; color: var(--muted); margin-top: 4px; }
.download-row__meta { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; font-family: var(--mono); font-size: 10px; color: var(--muted); }
.download-row__meta b { font-size: 12px; color: var(--ink); }
.download-row--data { background: var(--blue-soft); }
.lang-badge { display: inline-block; padding: 1px 6px; border: 1px solid var(--line); background: #fff; color: var(--muted); font-size: 10px; }
.lang-badge--en { color: #175CD3; border-color: #C7D7FE; background: #F5F8FF; }
.lang-badge--fr { color: #8A4B00; border-color: #F5D6A8; background: #FFF9F0; }
.lang-badge--zh { color: var(--green); border-color: #BFD8C7; background: #F1F8F3; }

/* ── knowledge / article / faq ───────────────── */
.knowledge-list { border-top: 1px solid var(--line); }
.knowledge-row { display: grid; grid-template-columns: 54px 1fr 40px; gap: 24px; padding: 26px 0; border-bottom: 1px solid var(--line); color: var(--body); align-items: start; }
.knowledge-row:hover { text-decoration: none; background: var(--paper); }
.knowledge-row__no { font-family: var(--mono); font-size: 12px; color: var(--blue); padding-top: 4px; }
.knowledge-row__meta { font-family: var(--mono); font-size: 10px; color: var(--muted); letter-spacing: .06em; text-transform: uppercase; }
.knowledge-row h2 { font-size: 24px; margin: 6px 0 8px; }
.knowledge-row p { color: var(--muted); font-size: 14px; max-width: 72ch; margin: 0; }
.knowledge-row__arrow { color: var(--blue); font-size: 22px; }
.knowledge-cta { display: flex; justify-content: space-between; gap: 32px; align-items: center; margin-top: 40px; padding: 28px; background: var(--navy); color: #C6D5E8; }
.knowledge-cta h2 { color: #fff; font-size: 26px; margin-bottom: 6px; }
.knowledge-cta p { font-size: 13px; margin: 0; }
.knowledge-cta .btn { margin-left: 8px; }

.article__head { padding-top: 44px; padding-bottom: 34px; border-bottom: 1px solid var(--line); }
.article__head h1 { font-size: clamp(2rem, 3.8vw, 3.3rem); max-width: 24em; margin-bottom: 16px; }
.article__summary { font-size: 17px; color: var(--muted); max-width: 62ch; }
.article__layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 64px; padding-top: 44px; padding-bottom: 80px; align-items: start; }
.article__body { max-width: 72ch; }
.article__body h2 { font-size: 26px; margin: 36px 0 12px; }
.article__body h2:first-child { margin-top: 0; }
.article__body p { color: var(--body); }
.article__source { font-size: 12px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 16px; margin-top: 30px; }
.article__aside { border-left: 1px solid var(--line); padding-left: 28px; position: sticky; top: 98px; }
.article__aside h2 { font-size: 13px; font-family: var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 8px; }
.article__aside h2:not(:first-child) { margin-top: 24px; }
.article__aside .text-link { display: block; padding: 6px 0; }
.article__aside p { font-size: 12px; color: var(--muted); }
.article__aside .btn { width: 100%; }

.faq-wrap { max-width: 900px; }
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item summary { list-style: none; display: flex; justify-content: space-between; gap: 20px; align-items: center; padding: 20px 0; cursor: pointer; color: var(--ink); font-weight: 600; font-size: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { width: 20px; height: 20px; position: relative; flex: 0 0 auto; }
.faq-item summary i::before, .faq-item summary i::after { content: ""; position: absolute; background: var(--blue); }
.faq-item summary i::before { left: 0; top: 9px; width: 20px; height: 2px; }
.faq-item summary i::after { left: 9px; top: 0; width: 2px; height: 20px; transition: transform .2s; }
.faq-item[open] summary i::after { transform: scaleY(0); }
.faq-item__answer { padding: 0 0 20px; color: var(--muted); font-size: 14px; max-width: 72ch; }
.faq-item__answer p { margin: 0; }

/* ── about / verify / contact ───────────────── */
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
.about-media { margin: 0; border: 1px solid var(--line); padding: 10px; background: #fff; }
.about-media img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.about-media figcaption { font-family: var(--mono); font-size: 10px; color: var(--muted); padding: 10px 2px 0; line-height: 1.5; }
.about-copy p { color: var(--muted); }
.about-facts { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); margin-top: 24px; }
.about-facts > div { padding: 14px 0; border-bottom: 1px solid var(--line); }
.about-facts span { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.about-facts b { font-size: 14px; color: var(--ink); }
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.value-grid > div { border-top: 2px solid var(--ink); padding-top: 18px; }
.value-grid h2 { font-size: 24px; margin-bottom: 12px; }
.value-grid p { font-size: 14px; color: var(--muted); }
.verify-grid { display: grid; grid-template-columns: repeat(6, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-bottom: 32px; }
.verify-card { padding: 18px 12px; border-right: 1px solid var(--line); }
.verify-card:last-child { border-right: 0; }
.verify-card b { display: block; font-size: 24px; color: var(--ink); line-height: 1.1; }
.verify-card span { font-size: 11px; color: var(--muted); }

.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 56px; align-items: start; }
.contact-info h2 { font-size: 28px; }
.contact-info__role { font-size: 13px; color: var(--muted); }
.contact-list { margin: 24px 0; }
.contact-list > div { display: grid; grid-template-columns: 64px 1fr; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); }
.contact-list dt { font-family: var(--mono); font-size: 10px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); padding-top: 2px; }
.contact-list dd { margin: 0; font-size: 14px; color: var(--ink); }
.contact-note { border: 1px solid var(--line); background: var(--paper); padding: 20px; }
.contact-note h3 { font-size: 16px; margin-bottom: 8px; }
.contact-form h2 { font-size: 28px; margin-bottom: 14px; }

/* ── search ──────────────────────────────────── */
.search-page-form { display: flex; gap: 10px; max-width: 720px; margin: 24px 0 10px; }
.search-page-form input { flex: 1; min-width: 0; height: 50px; border: 1px solid var(--line); padding: 0 14px; background: #fff; }
.search-page-meta { font-size: 12px; color: var(--muted); }
.search-results { max-width: 960px; }
.search-result { display: block; padding: 18px 0; border-bottom: 1px solid var(--line); color: var(--body); }
.search-result:hover { text-decoration: none; background: var(--paper); }
.search-result__type { font-family: var(--mono); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; color: var(--blue); }
.search-result__title { display: block; font-size: 18px; color: var(--ink); font-weight: 600; margin: 2px 0; }
.search-result__sub { display: block; font-size: 13px; color: var(--muted); }
.search-result mark { background: var(--blue-soft); color: var(--ink); }
.search-empty { padding: 28px 0; color: var(--muted); }

/* ── prose / notfound ───────────────────────── */
.prose { max-width: 780px; }
.prose h2 { font-size: 24px; margin: 34px 0 10px; }
.prose h2:first-child { margin-top: 0; }
.prose p { color: var(--muted); }
.notfound { padding: 90px 0 110px; background: var(--paper); }
.notfound__inner { max-width: 720px; }
.notfound__code { font-family: var(--mono); font-size: 72px; color: var(--blue); line-height: 1; }
.notfound h1 { margin: 10px 0 16px; }
.notfound p { color: var(--muted); }
.notfound__actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 24px 0; }
.notfound__links { display: flex; flex-wrap: wrap; gap: 18px; font-size: 13px; }

/* ── source strip ────────────────────────────── */
.source-strip { background: var(--paper); border-top: 1px solid var(--line); padding: 44px 0; }
.source-strip__inner { display: grid; grid-template-columns: .5fr 1.5fr; gap: 40px; align-items: start; }
.source-strip h2 { font-size: 26px; }
.source-strip p { font-size: 13px; color: var(--muted); margin: 0; max-width: 80ch; }

/* ── family strip ────────────────────────────── */
.family-strip { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.family-strip__item { display: flex; align-items: center; gap: 12px; padding: 18px; border-right: 1px solid var(--line); color: var(--body); }
.family-strip__item:last-child { border-right: 0; }
.family-strip__item:hover { text-decoration: none; background: var(--paper); }
.family-strip__no { font-family: var(--mono); font-size: 10px; color: var(--muted); }
.family-strip__body { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.family-strip__body b { font-size: 15px; color: var(--ink); }
.family-strip__body span { font-size: 11px; color: var(--muted); }
.family-strip__count { font-family: var(--mono); font-size: 18px; color: var(--blue); }

/* ── footer ──────────────────────────────────── */
.footer { background: var(--navy); color: #AFC0D8; padding: 56px 0 22px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1fr; gap: 40px; }
.footer__brand p { font-size: 13px; color: #9FB4CE; max-width: 34ch; }
.footer__operator { font-size: 11px; color: #7E92AE; }
.logo--footer .logo__txt strong, .logo--footer .logo__txt span { color: #fff; }
.logo--footer .logo__txt span { color: #9FB4CE; }
.footer__col h4 { color: #fff; font-size: 12px; font-family: var(--mono); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 12px; }
.footer__col a, .footer__col span { display: block; font-size: 13px; color: #B7C8DD; padding: 3px 0; }
.footer__col a:hover { color: #fff; }
.footer__factory { font-size: 11px !important; color: #7E92AE !important; margin-top: 6px; }
.footer__bottom { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,.14); margin-top: 36px; padding-top: 16px; font-size: 10px; color: #7E92AE; }
.footer__legal { display: flex; gap: 16px; }
.footer__legal a { color: #AFC0D8; }
.footer__source { max-width: 52ch; text-align: right; }

/* ── responsive ──────────────────────────────── */
@media (max-width: 1120px) {
  .nav { display: none; }
  .menu-btn { display: block; }
  .nav.is-open { display: flex; position: fixed; inset: 112px 16px auto 16px; background: #fff; border: 1px solid var(--line); flex-direction: column; padding: 12px; box-shadow: 0 20px 50px rgba(7,27,58,.16); }
  .nav.is-open .nav__link { padding: 12px; }
  .hero__inner { grid-template-columns: 1fr; gap: 20px; }
  .hero__visual { min-height: 420px; }
  .hero__figure { width: 300px; }
  .hero__ring--1 { width: 350px; height: 350px; }
  .hero__ring--2 { width: 430px; height: 430px; }
  .hero__chip--a { left: 4%; top: 10%; }
  .hero__chip--b { right: 4%; bottom: 8%; }
  .family-grid { grid-template-columns: repeat(2, 1fr); }
  .section-head--split, .page-hero__row, .category-hero__grid, .series-hero__grid, .product-hero__grid, .about-grid, .contact-grid, .inquiry-layout, .application-hero__grid, .application-body, .series-layout, .product-body, .why-grid, .source-strip__inner, .model-band__inner, .provenance__inner, .article__layout { grid-template-columns: 1fr; gap: 36px; }
  .product-aside, .application-aside, .article__aside { position: static; }
  .article__aside { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 20px; }
  .series-layout__aside { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 20px; }
  .app-grid { grid-template-columns: repeat(4, 1fr); }
  .app-tile:nth-child(1), .app-tile:nth-child(2) { grid-column: span 2; }
  .app-tile:nth-child(n+3) { grid-column: span 2; }
  .knowledge-grid, .series-grid, .value-grid { grid-template-columns: repeat(2, 1fr); }
  .verify-grid { grid-template-columns: repeat(3, 1fr); }
  .family-strip { grid-template-columns: 1fr 1fr; }
  .family-strip__item:nth-child(2) { border-right: 0; }
  .family-strip__item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .data-table thead th { top: 78px; }
}

@media (max-width: 760px) {
  .wrap { width: min(var(--wrap), calc(100% - 32px)); }
  .topbar__tag { display: none; }
  .topbar__inner { justify-content: center; }
  .header__inner { min-height: 66px; gap: 10px; }
  .logo__txt strong { display: none; }
  .logo__mark { width: 40px; height: 40px; font-size: 13px; }
  .header__cta { display: none; }
  .hero { padding-top: 0; }
  .hero__inner { padding: 34px 0 28px; }
  .hero__visual { min-height: 320px; }
  .hero__figure { width: 230px; padding: 14px; }
  .hero__ring--1 { width: 270px; height: 270px; }
  .hero__ring--2 { width: 330px; height: 330px; }
  .hero__chip { padding: 8px 10px; }
  .hero__chip b { font-size: 13px; }
  .hero__chip span { font-size: 9px; }
  .hero__facts { grid-template-columns: 1fr 1fr; }
  .hero__fact:nth-child(2) { border-right: 0; }
  .hero__fact:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.14); }
  .section { padding: 62px 0; }
  .section--tight { padding: 30px 0; }
  .family-grid, .knowledge-grid, .series-grid, .value-grid, .app-grid, .related-grid, .inquiry-form__grid, .about-facts { grid-template-columns: 1fr; }
  .app-tile:nth-child(n) { grid-column: span 1; min-height: 220px; }
  .app-tile:nth-child(1), .app-tile:nth-child(2) { grid-column: span 1; }
  .app-row { grid-template-columns: 110px 1fr; gap: 16px; }
  .app-row__arrow { display: none; }
  .download-row { grid-template-columns: 1fr; gap: 8px; }
  .download-row__meta { flex-direction: row; align-items: center; }
  .knowledge-row { grid-template-columns: 36px 1fr; gap: 12px; }
  .knowledge-row__arrow { display: none; }
  .knowledge-cta { flex-direction: column; align-items: flex-start; }
  .knowledge-cta .btn { margin: 8px 8px 0 0; }
  .family-strip { grid-template-columns: 1fr; }
  .family-strip__item { border-right: 0; border-bottom: 1px solid var(--line); }
  .family-strip__item:last-child { border-bottom: 0; }
  .page-hero { padding: 34px 0 40px; }
  .page-hero__stats { margin-top: 8px; }
  .lang-summary { grid-template-columns: 1fr 1fr; }
  .lang-summary > div:nth-child(2) { border-right: 0; }
  .lang-summary > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .verify-grid { grid-template-columns: 1fr 1fr; }
  .verify-card:nth-child(2n) { border-right: 0; }
  .verify-card { border-bottom: 1px solid var(--line); }
  .product-hero__specs { grid-template-columns: 1fr 1fr; }
  .product-hero__media img { max-height: 360px; }
  .product-facts { grid-template-columns: 1fr 1fr; }
  .spec-strip { grid-template-columns: 1fr 1fr; }
  .spec-strip > div:nth-child(2n) { border-right: 0; }
  .footer__grid { grid-template-columns: 1fr; gap: 24px; }
  .footer__source { text-align: left; }
  .footer__bottom { flex-direction: column; }
  .search-page-form { flex-direction: column; }
  .field--inline { flex: 1 1 100%; }
  .field--inline input { width: 100%; }
  .model-table__bar { align-items: stretch; }
  .model-table__count { margin-left: 0; }
  .data-table thead th { position: static; }
  .table-wrap { overflow-x: auto; }
  .data-table { min-width: 720px; }
  .data-table--spec { min-width: 0; }
  .data-table--spec th[scope="row"], .data-table--spec td { width: auto; }
  .data-table--spec td:last-child { display: none; }
  .data-table--spec th:last-child { display: none; }
  .data-table--article { min-width: 560px; }
  .data-table--article td:first-child { white-space: nowrap; }
  .hero h1 { font-size: clamp(2.1rem, 10vw, 3.2rem); }
  .page-hero h1, .category-hero h1, .application-hero h1 { font-size: clamp(2rem, 9vw, 3rem); }
  .model-band__counts { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 420px) {
  .hero__chip--a { left: 0; top: 2%; }
  .hero__chip--b { right: 0; bottom: 2%; }
  .hero__visual { min-height: 280px; }
  .hero__figure { width: 200px; }
  .product-hero__specs { grid-template-columns: 1fr; }
  .product-facts, .spec-strip { grid-template-columns: 1fr; }
  .product-facts > div, .spec-strip > div { border-right: 0; }
  .inquiry-form { padding: 18px; }
  .verify-grid { grid-template-columns: 1fr; }
  .verify-card { border-right: 0; }
}