/* HEAVY POWER 中国资料站 · 组件与版式 */

/* ── 基础 ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: hidden; }

body {
  margin: 0;
  background: var(--paper-2);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  font-feature-settings: "kern" 1;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.no-scroll { overflow: hidden; }
body { overflow-x: hidden; }

img, svg { display: block; max-width: 100%; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--blue); }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4, h5 { margin: 0; line-height: 1.18; font-weight: 700; text-wrap: balance; }
p { margin: 0 0 1em; text-wrap: pretty; }
ul, ol, dl { margin: 0; padding: 0; }
li { list-style: none; }
figure { margin: 0; }
code, .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
::selection { background: var(--cyan-soft); color: var(--navy); }

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

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

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0); clip-path: inset(50%);
  overflow: hidden; white-space: nowrap;
}

.skip {
  position: fixed;
  top: 8px; left: 8px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius-sm);
  transform: translateY(-160%);
  transition: transform .2s var(--ease);
}
.skip:focus { transform: none; color: #fff; }

/* ── 顶部工具条 ───────────────────────────────────────── */
.topbar {
  background: var(--navy-2);
  color: #b9d2df;
  font-size: 12.5px;
  letter-spacing: .02em;
}
.topbar__inner {
  min-height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.topbar__tag { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.dot {
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 3px rgba(54, 182, 224, .18);
}
.topbar__links { display: inline-flex; align-items: center; gap: 18px; white-space: nowrap; }
.topbar a { color: #cfe3ee; }
.topbar a:hover { color: #fff; }
.topbar__source { border-left: 1px solid rgba(255,255,255,.18); padding-left: 18px; }

/* ── 页头 ─────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s var(--ease);
}
.header.is-scrolled { box-shadow: var(--shadow-sm); }
.header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 28px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  color: var(--navy);
}
.logo:hover { color: var(--navy); }
.logo__img { display: block; line-height: 0; }
.logo__img img { width: 168px; height: auto; }
.logo__cn {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--steel);
  padding-left: 12px;
  border-left: 1px solid var(--line-2);
  white-space: nowrap;
}
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav__link {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-2);
  border-radius: var(--radius-sm);
  position: relative;
  white-space: nowrap;
}
.nav__link:hover { background: var(--ice); color: var(--brand); }
.nav__link.is-active { color: var(--brand); }
.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: 1px;
  height: 2px;
  background: var(--blue);
}
.header__actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.header__cta { height: 40px; padding: 0 16px; font-size: 14px; }

.icon-btn {
  width: 40px; height: 40px;
  display: inline-grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--ink-2);
}
.icon-btn:hover { background: var(--ice); color: var(--brand); }
.icon-btn svg {
  width: 20px; height: 20px;
  fill: none; stroke: currentColor; stroke-width: 1.8;
  stroke-linecap: round;
}
.icon-btn--plain { font-size: 24px; line-height: 1; }

.menu-btn {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  padding: 0;
  position: relative;
}
.menu-btn span {
  position: absolute;
  left: 11px; right: 11px;
  height: 2px;
  background: var(--navy);
  transition: transform .2s var(--ease), top .2s var(--ease);
}
.menu-btn span:first-child { top: 15px; }
.menu-btn span:last-child { top: 24px; }
.menu-btn[aria-expanded="true"] span:first-child { top: 20px; transform: rotate(45deg); }
.menu-btn[aria-expanded="true"] span:last-child { top: 20px; transform: rotate(-45deg); }

.searchbar {
  border-top: 1px solid var(--line);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
}
.searchbar__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
}
.searchbar__inner svg {
  width: 22px; height: 22px;
  fill: none; stroke: var(--steel); stroke-width: 1.8;
  flex: 0 0 auto;
}
.searchbar input {
  flex: 1;
  height: 44px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  padding: 0 14px;
  background: var(--paper-2);
}
.searchbar input:focus { border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px rgba(0,135,203,.12); }

/* ── 按钮与链接 ───────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 650;
  line-height: 1.2;
  text-align: center;
  transition: background .18s var(--ease), border-color .18s var(--ease),
    color .18s var(--ease), transform .18s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--brand); color: #fff; border-color: var(--brand); }
.btn--primary:hover { background: var(--navy); border-color: var(--navy); color: #fff; }
.btn--copper { background: var(--copper); color: #fff; border-color: var(--copper); }
.btn--copper:hover { background: #984c1c; border-color: #984c1c; color: #fff; }
.btn--ghost { background: #fff; color: var(--brand); border-color: var(--line-2); }
.btn--ghost:hover { border-color: var(--blue); color: var(--brand); background: var(--ice); }
.btn--outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.42); }
.btn--outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; }
.btn--lg { min-height: 50px; padding: 0 26px; font-size: 16px; }
.btn--sm { min-height: 36px; padding: 0 14px; font-size: 13.5px; }
.btn--full { width: 100%; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14.5px;
  font-weight: 650;
  color: var(--brand);
  border-bottom: 1px solid transparent;
}
.text-link:hover { border-bottom-color: var(--blue); }
.muted-link { color: var(--ink-2); }
.muted-link:hover { color: var(--blue); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-2);
  margin-bottom: 12px;
}
.eyebrow--light { color: var(--cyan); }

/* ── 区块 ─────────────────────────────────────────────── */
.section { padding: 84px 0; }
.section--tight { padding: 56px 0; }
.section--ice { background: var(--ice); }
.section--dark { background: var(--navy); color: #fff; }
.section--split { background: var(--paper); }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 40px;
}
.section-head > div { max-width: 46em; }
.section-head h2 { font-size: clamp(1.65rem, 2.6vw, 2.35rem); color: var(--navy); }
.section-head__lead {
  max-width: 30em;
  margin: 0;
  font-size: 15px;
  color: var(--steel);
  min-width: 16em;
}
.section-head--dark h2 { color: #fff; }
.section-head--dark .section-head__lead { color: #b7d1de; }
.section-lead { max-width: 52em; color: var(--ink-2); margin: -12px 0 32px; }

.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--steel);
  margin-bottom: 26px;
}
.crumbs a { color: var(--steel); }
.crumbs a:hover { color: var(--blue); }
.crumbs span { color: var(--steel-2); }

/* ── 首页 Hero ───────────────────────────────────────── */
.hero {
  position: relative;
  background: var(--navy);
  color: #fff;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1100px 620px at 72% 36%, rgba(0,135,203,.28), transparent 64%),
    linear-gradient(180deg, rgba(0,0,0,.12), transparent 42%);
}
.hero__bg::before {
  content: "";
  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: 56px 56px;
  mask-image: linear-gradient(90deg, transparent, #000 35%, #000 100%);
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.04fr .96fr;
  gap: 64px;
  align-items: center;
  padding: 86px 0 76px;
}
.hero__copy { max-width: 38em; }
.hero__h1 {
  font-size: clamp(2.7rem, 5.4vw, 4.9rem);
  line-height: 1.02;
  letter-spacing: .01em;
  font-weight: 800;
  margin-bottom: 24px;
}
.hero__h1 em { font-style: normal; color: var(--cyan); }
.hero__sub {
  font-size: 17px;
  line-height: 1.85;
  color: #c4dce9;
  max-width: 33em;
  margin-bottom: 30px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  margin-top: 38px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,.18);
  font-size: 13px;
  color: #a9c8d8;
}
.hero__facts li { display: inline-flex; align-items: baseline; gap: 8px; }
.hero__facts span {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.hero__visual { position: relative; min-height: 430px; }
.hero__frame {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 470px;
  margin-left: auto;
  background:
    linear-gradient(135deg, rgba(255,255,255,.1), rgba(255,255,255,.02)),
    var(--ice);
  border: 1px solid rgba(255,255,255,.24);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.hero__frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,72,115,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,72,115,.07) 1px, transparent 1px);
  background-size: 32px 32px;
}
.hero__main {
  position: relative;
  width: 68%;
  height: auto;
  filter: drop-shadow(0 26px 26px rgba(0,41,63,.2));
  animation: heroIn .9s var(--ease) both;
}
@keyframes heroIn {
  from { opacity: 0; transform: translateY(18px) scale(.97); }
  to { opacity: 1; transform: none; }
}
.corner {
  position: absolute;
  width: 16px; height: 16px;
  border-color: var(--blue);
  border-style: solid;
  z-index: 2;
}
.corner--tl { top: 14px; left: 14px; border-width: 2px 0 0 2px; }
.corner--tr { top: 14px; right: 14px; border-width: 2px 2px 0 0; }
.corner--bl { bottom: 14px; left: 14px; border-width: 0 0 2px 2px; }
.corner--br { bottom: 14px; right: 14px; border-width: 0 2px 2px 0; }
.hero__caption {
  position: absolute;
  left: 22px; bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--navy);
  z-index: 2;
}
.hero__caption b { font-family: var(--font-mono); font-size: 20px; letter-spacing: .04em; }
.hero__caption span { font-size: 12.5px; color: var(--steel); }
.hero__scale {
  position: absolute;
  right: 22px; bottom: 22px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .1em;
  color: var(--steel-2);
  z-index: 2;
}
.hero__chip {
  position: absolute;
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  z-index: 3;
}
.hero__chip--a {
  top: -18px;
  right: 2%;
  padding: 14px 16px;
  min-width: 190px;
}
.hero__chip--a span { display: block; font-size: 11px; color: var(--steel); letter-spacing: .04em; }
.hero__chip--a strong { display: block; font-family: var(--font-mono); font-size: 12.5px; color: var(--navy); margin: 4px 0 2px; line-height: 1.5; }
.hero__chip--a small { font-size: 11px; color: var(--copper); }
.hero__chip--b {
  left: -6%;
  bottom: 8%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px 10px 10px;
}
.hero__chip--b img { width: 48px; height: 48px; object-fit: contain; background: var(--ice); }
.hero__chip--b span { display: block; font-family: var(--font-mono); font-size: 11px; color: var(--steel); }
.hero__chip--b strong { display: block; font-size: 14px; color: var(--navy); }
.hero__chip--b small { display: block; font-size: 10.5px; color: var(--steel); }
.hero__certrail {
  position: absolute;
  left: 0; right: 0; bottom: -26px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 14px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  z-index: 3;
}
.hero__certrail img { width: 22px; height: 22px; object-fit: contain; opacity: .8; }
.hero__certrail span { font-family: var(--font-mono); font-size: 10.5px; color: var(--steel); }

.hero__stats {
  position: relative;
  border-top: 1px solid rgba(255,255,255,.15);
  background: rgba(0, 29, 45, .4);
}
.hero__stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 24px 22px 24px 0;
  border-right: 1px solid rgba(255,255,255,.12);
}
.stat:not(:first-child) { padding-left: 24px; }
.stat:last-child { border-right: 0; }
.stat strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  color: var(--cyan);
  font-weight: 700;
}
.stat span { display: block; margin-top: 7px; font-size: 14px; color: #fff; }
.stat small { display: block; margin-top: 2px; font-size: 11.5px; color: #8fb4c6; }

/* ── 分类卡 ───────────────────────────────────────────── */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}
.cat-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  color: var(--ink);
  transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.cat-card:hover { transform: translateY(-4px); border-color: var(--line-2); box-shadow: var(--shadow-md); color: var(--ink); }
.cat-card__img {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--ice);
  display: grid;
  place-items: center;
  padding: 22px;
  border-bottom: 1px solid var(--line);
}
.cat-card__img img { width: 72%; height: 72%; object-fit: contain; transition: transform .3s var(--ease); }
.cat-card:hover .cat-card__img img { transform: scale(1.04); }
.cat-card__no {
  position: absolute;
  top: 14px; left: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--blue-2);
  letter-spacing: .1em;
}
.cat-card__body { padding: 22px 22px 24px; position: relative; }
.cat-card__count {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .08em;
  color: var(--copper);
  margin-bottom: 6px;
}
.cat-card__body h3 { font-size: 20px; color: var(--navy); margin-bottom: 8px; }
.cat-card__body p { font-size: 14px; color: var(--steel); margin: 0 0 18px; }
.cat-card__arrow {
  font-family: var(--font-mono);
  color: var(--blue);
  font-size: 18px;
  transition: transform .2s var(--ease);
  display: inline-block;
}
.cat-card:hover .cat-card__arrow { transform: translateX(4px); }

/* ── 系列卡 ───────────────────────────────────────────── */
.series-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}
.series-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  color: var(--ink);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.series-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--line-2); color: var(--ink); }
.series-card__img {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--ice);
  border-bottom: 1px solid var(--line);
  display: grid;
  place-items: center;
  padding: 16px;
}
.series-card__img img { width: 78%; height: 78%; object-fit: contain; }
.series-card__cat {
  position: absolute;
  left: 12px; top: 12px;
  background: rgba(0,58,92,.9);
  color: #fff;
  font-size: 10.5px;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  letter-spacing: .02em;
}
.series-card__body { padding: 20px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.series-card__body h3 { font-size: 18px; color: var(--navy); margin-bottom: 8px; }
.series-card__body p { font-size: 13.5px; color: var(--steel); margin: 0 0 16px; }
.series-card__meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--blue-2);
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

/* ── 分栏与证据 ───────────────────────────────────────── */
.split {
  display: grid;
  grid-template-columns: minmax(16em, .82fr) minmax(0, 1.18fr);
  gap: 64px;
  align-items: start;
}
.split__aside { position: sticky; top: calc(var(--header-h) + 32px); }
.split__aside h2 { font-size: clamp(1.7rem, 2.6vw, 2.4rem); color: var(--navy); margin-bottom: 18px; }
.split__aside p { color: var(--steel); margin-bottom: 24px; }
.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 30px 34px;
}
.proof-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.proof { border-top: 2px solid var(--navy); padding-top: 18px; }
.proof__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--blue);
  letter-spacing: .1em;
  margin-bottom: 8px;
}
.proof h3 { font-size: 17px; color: var(--navy); margin-bottom: 6px; }
.proof p { font-size: 14px; color: var(--steel); margin: 0; }

.cert-band {
  margin-top: 36px;
  background: #fff;
  border: 1px solid var(--line);
  padding: 24px;
}
.cert-band__head { display: flex; justify-content: space-between; gap: 24px; align-items: baseline; margin-bottom: 18px; }
.cert-band__head .eyebrow { margin: 0; }
.cert-band__head p { margin: 0; font-size: 12.5px; color: var(--steel); }
.cert-band__icons { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px 8px; }
.cert-band__icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 8px 4px;
  border: 1px solid var(--line);
  min-width: 0;
}
.cert-band__icon img { width: 30px; height: 30px; object-fit: contain; }
.cert-band__icon span { font-family: var(--font-mono); font-size: 9.5px; color: var(--steel); text-align: center; }

/* ── 型号卡 ───────────────────────────────────────────── */
.model-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.model-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  color: var(--ink);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}
.model-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--line-2); color: var(--ink); }
.model-card__img {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--ice);
  display: grid;
  place-items: center;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}
.model-card__img img { width: 80%; height: 80%; object-fit: contain; }
.model-card__sku {
  position: absolute;
  left: 10px; top: 10px;
  background: #fff;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 2px 6px;
  color: var(--navy);
}
.model-card__body { padding: 16px 16px 18px; display: flex; flex-direction: column; flex: 1; }
.model-card__series { font-size: 11px; color: var(--copper); margin-bottom: 4px; }
.model-card__body h3 { font-size: 15.5px; line-height: 1.35; color: var(--navy); margin-bottom: 6px; }
.model-card__tag { font-family: var(--font-mono); font-size: 11px; line-height: 1.55; color: var(--steel); margin: 0 0 14px; }
.model-card__more { margin-top: auto; font-size: 12.5px; color: var(--blue-2); font-weight: 650; }

/* ── 应用卡 ───────────────────────────────────────────── */
.app-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.app-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  overflow: hidden;
  color: var(--ink);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.app-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); color: var(--ink); }
.app-card__img { aspect-ratio: 16 / 9; background: var(--ice); overflow: hidden; }
.app-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s var(--ease); }
.app-card:hover .app-card__img img { transform: scale(1.03); }
.app-card__body { padding: 22px; }
.app-card__en { display: block; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .1em; color: var(--blue-2); }
.app-card__body h3 { font-size: 20px; color: var(--navy); margin: 6px 0 8px; }
.app-card__body p { font-size: 14px; color: var(--steel); margin: 0 0 16px; }
.app-card__more { font-size: 12.5px; color: var(--copper); font-weight: 650; }

/* ── 深色资源区 ───────────────────────────────────────── */
.resource-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.resource-card {
  display: block;
  padding: 28px;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.035);
  color: #fff;
  transition: background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.resource-card:hover { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.34); color: #fff; transform: translateY(-2px); }
.resource-card__no { font-family: var(--font-mono); font-size: 11px; color: var(--cyan); letter-spacing: .1em; }
.resource-card h3 { font-size: 22px; margin: 12px 0 8px; }
.resource-card p { font-size: 14px; color: #b4cfdd; margin-bottom: 20px; }
.resource-card__meta { font-family: var(--font-mono); font-size: 11.5px; color: var(--cyan); }

/* ── 关于条 ───────────────────────────────────────────── */
.about-strip {
  display: grid;
  grid-template-columns: minmax(16em, 1.1fr) minmax(0, .9fr);
  gap: 64px;
  align-items: center;
}
.about-strip__copy h2 { font-size: clamp(1.6rem, 2.5vw, 2.2rem); color: var(--navy); margin-bottom: 16px; }
.about-strip__copy p { color: var(--steel); }
.about-strip__links { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 20px; }
.about-strip__facts { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-2); border-left: 1px solid var(--line-2); }
.about-strip__facts > div { padding: 20px; border-right: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); background: #fff; }
.about-strip__facts span { display: block; font-size: 11px; color: var(--steel); }
.about-strip__facts strong { display: block; font-family: var(--font-mono); font-size: 28px; color: var(--navy); line-height: 1.2; margin: 4px 0 2px; }
.about-strip__facts small { font-size: 11px; color: var(--steel-2); }

/* ── 内页 Hero ────────────────────────────────────────── */
.page-hero {
  background:
    linear-gradient(180deg, rgba(238,246,250,.72), rgba(255,255,255,0)),
    var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 34px 0 54px;
}
.page-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(16em, .65fr);
  gap: 56px;
  align-items: end;
}
.page-hero h1 { font-size: clamp(2.2rem, 4.2vw, 3.6rem); color: var(--navy); margin-bottom: 16px; }
.page-hero__lead { font-size: 16px; color: var(--ink-2); max-width: 46em; margin: 0; }
.page-hero__chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.page-hero__chips > span, .page-hero__chips > a {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 3px 10px;
  border: 1px solid var(--line-2);
  background: #fff;
  font-size: 12px;
  color: var(--ink-2);
}
.page-hero__chips > a:hover { border-color: var(--blue); color: var(--brand); }
.page-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-2);
  border-left: 1px solid var(--line-2);
}
.page-hero__stats > div { padding: 14px 14px 12px; border-right: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); background: #fff; min-width: 0; }
.page-hero__stats dt { font-size: 11px; color: var(--steel); }
.page-hero__stats dd { margin: 4px 0 0; font-family: var(--font-mono); font-size: 21px; font-weight: 700; color: var(--navy); line-height: 1.2; }
.page-hero__stats dd a { font-size: 13px; }
.page-hero__media {
  background: var(--ice);
  border: 1px solid var(--line);
  padding: 20px;
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 3;
}
.page-hero__media img { width: 100%; height: 100%; object-fit: contain; }
.page-hero__media--wide { aspect-ratio: 16 / 9; padding: 0; overflow: hidden; }
.page-hero__media--wide img { object-fit: cover; }

.cat-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.cat-chip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 42px;
  padding: 6px 14px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 14px;
}
.cat-chip:hover { border-color: var(--blue); color: var(--brand); background: var(--ice); }
.cat-chip b { font-family: var(--font-mono); font-size: 11px; color: var(--copper); }

/* ── 筛选 ─────────────────────────────────────────────── */
.filter-bar {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr 1fr;
  gap: 14px;
  padding: 18px;
  background: #fff;
  border: 1px solid var(--line);
  margin-bottom: 12px;
}
.filter-bar__field { min-width: 0; }
.filter-bar__field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--steel);
  margin-bottom: 5px;
}
.filter-bar__field input,
.filter-bar__field select {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-xs);
  background: var(--paper);
  padding: 0 10px;
  font-size: 14px;
}
.filter-bar__field input:focus,
.filter-bar__field select:focus { border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px rgba(0,135,203,.1); }
.filter-bar__foot {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}
.filter-count { font-family: var(--font-mono); font-size: 12px; color: var(--ink-2); }
.filter-note { font-size: 12px; color: var(--steel); margin: 0 0 22px; }
.model-table tr[hidden] { display: none; }

/* ── 表格 ─────────────────────────────────────────────── */
.table-wrap { width: 100%; max-width: 100%; min-width: 0; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: #fff;
}
.data-table th {
  background: var(--navy);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .08em;
  text-align: left;
  padding: 11px 12px;
  white-space: nowrap;
}
.data-table td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  color: var(--ink-2);
}
.data-table tbody tr:hover { background: var(--ice); }
.data-table tbody tr:last-child td { border-bottom: 1px solid var(--line-2); }
.model-cell a { font-weight: 700; color: var(--navy); font-size: 13px; }
.name-cell a { color: var(--ink); font-weight: 600; }
.name-cell a:hover { color: var(--blue); }
.spec-cell { font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-2); line-height: 1.6; max-width: 30em; }
.cert-cell { white-space: nowrap; }
.cert-mini {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 9.5px;
  padding: 1px 5px;
  margin: 0 3px 3px 0;
  border: 1px solid var(--line-2);
  color: var(--ink-2);
  background: var(--paper-2);
}
.cert-more { font-family: var(--font-mono); font-size: 9.5px; color: var(--steel); }
.row-arrow { text-align: right; white-space: nowrap; }
.row-arrow a { font-family: var(--font-mono); color: var(--blue); font-weight: 700; }
.row-arrow a:hover { color: var(--copper); }

@media (min-width: 1025px) {
  .data-table thead th { position: sticky; top: calc(var(--header-h) + 1px); z-index: 5; }
}

/* ── 系列/分类内部 ───────────────────────────────────── */
.series-index { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 36px; }
.series-index__col h3 {
  font-size: 15px;
  color: var(--navy);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--navy);
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.series-index__col h3 span { font-family: var(--font-mono); font-size: 11px; color: var(--copper); }
.series-index__col > a {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-2);
}
.series-index__col > a span { font-family: var(--font-mono); font-size: 10.5px; color: var(--steel); }
.series-index__col > a:hover { color: var(--blue); }

.series-body { display: grid; grid-template-columns: minmax(16em, 1.35fr) minmax(16em, .65fr); gap: 56px; align-items: start; }
.series-body__intro h2 { font-size: clamp(1.5rem, 2.3vw, 1.9rem); color: var(--navy); margin-bottom: 18px; }
.series-body__meta { border: 1px solid var(--line); background: #fff; padding: 22px; }
.series-body__meta dl > div { display: flex; justify-content: space-between; gap: 16px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.series-body__meta dt { color: var(--steel); }
.series-body__meta dd { margin: 0; text-align: right; color: var(--ink); }
.series-body__sources { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }

.bullets { list-style: none; padding: 0; margin: 0; }
.bullets li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 14.5px;
  color: var(--ink-2);
}
.bullets li::before {
  content: "";
  position: absolute;
  left: 0; top: .72em;
  width: 7px; height: 7px;
  background: var(--copper);
  transform: rotate(45deg);
}
.bullets--tight li { margin-bottom: 6px; font-size: 13px; }

.link-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.link-grid--wide { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.link-card {
  display: block;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.link-card:hover { border-color: var(--blue); transform: translateY(-2px); color: var(--ink); }
.link-card > span { font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; color: var(--blue-2); }
.link-card h3 { font-size: 17px; color: var(--navy); margin: 6px 0 6px; }
.link-card small { font-size: 12px; color: var(--steel); }
.link-card--big { padding: 28px; }
.link-card--big h2 { font-size: 22px; color: var(--navy); margin: 10px 0 8px; }
.link-card--big p { font-size: 14px; color: var(--steel); margin-bottom: 18px; }

.source-box {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--copper);
}
.source-box h2 { font-size: 21px; color: var(--navy); margin-bottom: 8px; }
.source-box p { font-size: 14px; color: var(--steel); margin: 0; max-width: 46em; }
.source-box__links { display: flex; flex-direction: column; gap: 9px; flex: 0 0 auto; }

/* ── 产品页 ───────────────────────────────────────────── */
.product { padding: 30px 0 48px; background: var(--paper); border-bottom: 1px solid var(--line); }
.product__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: start; }
.gallery__main {
  position: relative;
  aspect-ratio: 1 / 1;
  background:
    linear-gradient(135deg, rgba(255,255,255,.7), rgba(238,246,250,.3)),
    var(--ice);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  padding: 34px;
  overflow: hidden;
}
.gallery__main::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,72,115,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,72,115,.055) 1px, transparent 1px);
  background-size: 40px 40px;
}
.gallery__main img { position: relative; max-width: 100%; max-height: 100%; object-fit: contain; }
.gallery__corner { position: absolute; width: 18px; height: 18px; border-color: var(--blue); border-style: solid; }
.gallery__corner--tl { top: 12px; left: 12px; border-width: 2px 0 0 2px; }
.gallery__corner--tr { top: 12px; right: 12px; border-width: 2px 2px 0 0; }
.gallery__corner--bl { bottom: 12px; left: 12px; border-width: 0 0 2px 2px; }
.gallery__corner--br { bottom: 12px; right: 12px; border-width: 0 2px 2px 0; }
.gallery__sku {
  position: absolute;
  left: 20px; bottom: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--steel);
  background: rgba(255,255,255,.86);
  padding: 3px 7px;
  border: 1px solid var(--line);
}
.gallery__thumbs { display: grid; grid-template-columns: repeat(4, 82px); gap: 10px; margin-top: 12px; }
.gallery__thumb {
  width: 82px; height: 82px;
  padding: 6px;
  background: #fff;
  border: 1px solid var(--line);
}
.gallery__thumb img { width: 100%; height: 100%; object-fit: contain; }
.gallery__thumb.is-active { border-color: var(--blue); box-shadow: 0 0 0 2px rgba(0,135,203,.14); }

.product__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--steel);
  margin-bottom: 12px;
}
.product__eyebrow a { color: var(--copper); font-weight: 650; }
.product__eyebrow .dot { background: var(--line-2); box-shadow: none; width: 4px; height: 4px; }
.badge { font-family: var(--font-mono); font-size: 10px; padding: 2px 7px; border: 1px solid var(--line-2); color: var(--steel); }
.badge--en { border-color: var(--copper); color: var(--copper); background: var(--copper-soft); }
.product__info h1 { font-size: clamp(1.9rem, 3.3vw, 2.8rem); color: var(--navy); margin-bottom: 10px; }
.product__tagline { font-family: var(--font-mono); font-size: 13px; line-height: 1.65; color: var(--ink-2); margin-bottom: 24px; }

.key-specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-2);
  border-left: 1px solid var(--line-2);
  margin-bottom: 24px;
}
.key-specs > div { padding: 13px 14px 12px; border-right: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); min-width: 0; }
.key-specs dt { font-family: var(--font-mono); font-size: 10px; letter-spacing: .06em; color: var(--steel); margin-bottom: 4px; }
.key-specs dd { margin: 0; font-size: 13px; line-height: 1.55; color: var(--ink); white-space: pre-line; overflow-wrap: anywhere; }

.product__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }

.product__certs { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-bottom: 22px; }
.product__certs-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; color: var(--steel); margin-right: 2px; }
.cert-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 7px;
  border: 1px solid var(--line);
  background: #fff;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-2);
}
.cert-chip img { width: 22px; height: 22px; object-fit: contain; }
.cert-chip--sm { padding: 3px 6px; font-size: 9.5px; }
.cert-chip--sm img { width: 20px; height: 20px; }

.color-note { font-size: 12px; line-height: 1.6; color: #7a4a1c; background: #fdf3e5; border: 1px solid #ecd2a5; padding: 9px 12px; margin: 0 0 16px; }
.product__meta { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); padding-top: 14px; }
.product__meta > div { min-width: 0; }
.product__meta span { display: block; font-size: 10.5px; color: var(--steel); }
.product__meta b { font-size: 13px; color: var(--ink); font-weight: 650; }
.product__meta b.mono { font-size: 12px; }

.product__cols { display: grid; grid-template-columns: minmax(0, 1fr) minmax(16em, 340px); gap: 56px; align-items: start; }
.product__main { min-width: 0; }
.block { margin-bottom: 48px; }
.block:last-child { margin-bottom: 0; }
.block__head { margin-bottom: 18px; border-bottom: 2px solid var(--navy); padding-bottom: 14px; }
.block__head h2 { font-size: clamp(1.4rem, 2.2vw, 1.8rem); color: var(--navy); margin-bottom: 4px; }
.block__head p { margin: 0; font-size: 13px; color: var(--steel); }
.spec-table td:first-child { width: 22%; color: var(--ink); font-weight: 600; }
.spec-table td:nth-child(2) { width: 58%; white-space: pre-line; overflow-wrap: anywhere; }
.source-cell { font-size: 11.5px; color: var(--steel); white-space: nowrap; }
.prose { font-size: 15.5px; line-height: 1.85; color: var(--ink-2); max-width: 46em; }
.source-note { font-size: 12px; color: var(--steel); border-left: 2px solid var(--line-2); padding-left: 12px; margin-top: 16px; }
.sibling-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.sibling {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}
.sibling b { font-family: var(--font-mono); font-size: 12px; color: var(--navy); }
.sibling span { font-family: var(--font-mono); font-size: 9.5px; color: var(--steel); line-height: 1.45; }
.sibling:hover { border-color: var(--blue); }
.sibling.is-current { border-color: var(--copper); background: var(--copper-soft); }

.product__aside { position: sticky; top: calc(var(--header-h) + 24px); display: flex; flex-direction: column; gap: 16px; }
.inquiry-card { background: var(--navy); color: #fff; padding: 26px; }
.inquiry-card h2 { font-size: 22px; margin: 8px 0 8px; }
.inquiry-card p { font-size: 13px; color: #b7d1de; margin-bottom: 18px; }
.inquiry-card__phone, .inquiry-card__mail { display: block; margin-top: 12px; font-family: var(--font-mono); font-size: 12.5px; color: #d8e9f2; }
.inquiry-card__phone:hover, .inquiry-card__mail:hover { color: #fff; }
.aside-card { background: #fff; border: 1px solid var(--line); padding: 20px; }
.aside-card h3 { font-size: 14px; color: var(--navy); padding-bottom: 9px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.aside-card p { font-size: 13px; color: var(--ink-2); }
.aside-card--copper { border-top: 3px solid var(--copper); }
.aside-note { font-size: 11px !important; color: var(--steel) !important; margin: 12px 0 0 !important; }
.cert-list { display: flex; flex-wrap: wrap; gap: 6px; }
.source-list li { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px solid var(--line); font-size: 12px; }
.source-list li span { color: var(--steel); }
.source-list li a { color: var(--brand); }
.plain-list li { border-bottom: 1px solid var(--line); }
.plain-list li:last-child { border-bottom: 0; }
.plain-list a { display: flex; justify-content: space-between; gap: 14px; padding: 9px 0; font-size: 13px; color: var(--ink); }
.plain-list a span { font-family: var(--font-mono); font-size: 10px; color: var(--steel); white-space: nowrap; }
.plain-list a:hover { color: var(--blue); }
.small { font-size: 12px !important; color: var(--steel) !important; }

/* ── 应用页 ───────────────────────────────────────────── */
.app-list { display: flex; flex-direction: column; }
.app-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(16em, 1.15fr);
  gap: 40px;
  align-items: center;
  padding: 30px 0;
  border-top: 1px solid var(--line-2);
  color: var(--ink);
}
.app-row:last-child { border-bottom: 1px solid var(--line-2); }
.app-row:hover { color: var(--ink); }
.app-row:hover .app-row__img img { transform: scale(1.03); }
.app-row__img { aspect-ratio: 16 / 9; overflow: hidden; background: var(--ice); }
.app-row__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s var(--ease); }
.app-row__body h2 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); color: var(--navy); margin: 6px 0 8px; }
.app-row__body p { color: var(--steel); font-size: 14.5px; margin-bottom: 14px; }
.app-row__more { font-size: 13px; font-weight: 650; color: var(--copper); }
.app-row__no { position: absolute; right: 0; top: 22px; font-family: var(--font-mono); font-size: 12px; color: var(--steel-2); }

.app-detail { display: grid; grid-template-columns: minmax(16em, 1.4fr) minmax(16em, .6fr); gap: 56px; align-items: start; }
.app-detail__copy h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); color: var(--navy); margin-bottom: 16px; }
.app-detail__aside { display: flex; flex-direction: column; gap: 16px; }

/* ── 下载 ─────────────────────────────────────────────── */
.download-hero {
  background: var(--navy);
  color: #fff;
  padding: 26px;
  border: 1px solid var(--navy);
  min-width: 16em;
}
.download-hero__icon { display: inline-block; font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; color: var(--cyan); }
.download-hero strong { display: block; font-family: var(--font-mono); font-size: 44px; line-height: 1; margin: 10px 0 2px; }
.download-hero > span { display: block; font-size: 12px; color: #b7d1de; }
.download-hero small { display: block; margin-top: 14px; font-size: 11px; color: #8fb4c6; }
.notice { background: #fff7ea; border: 1px solid #ecd2a5; border-left: 4px solid var(--amber); padding: 16px 18px; font-size: 13.5px; color: #5d4520; margin-bottom: 30px; }
.notice a { color: var(--brand); text-decoration: underline; }
.download-group { margin-bottom: 38px; }
.download-group__head { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; border-bottom: 2px solid var(--navy); padding-bottom: 10px; margin-bottom: 12px; }
.download-group__head h2 { font-size: 19px; color: var(--navy); }
.download-group__head span { font-family: var(--font-mono); font-size: 11px; color: var(--steel); }
.download-table td:first-child { font-size: 12px; color: var(--navy); }

/* ── 知识/文章 ───────────────────────────────────────── */
.article-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.article-card {
  position: relative;
  display: block;
  padding: 30px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
  transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.article-card:hover { transform: translateY(-3px); border-color: var(--line-2); box-shadow: var(--shadow-md); color: var(--ink); }
.article-card__no { position: absolute; right: 24px; top: 22px; font-family: var(--font-mono); font-size: 12px; color: var(--steel-2); }
.article-card h2 { font-size: 21px; color: var(--navy); margin: 8px 0 10px; max-width: 22em; }
.article-card p { font-size: 14px; color: var(--steel); margin-bottom: 18px; }
.article-card__more { font-size: 12.5px; font-weight: 650; color: var(--copper); }

.article-head { max-width: 52em; }
.article-head h1 { font-size: clamp(2rem, 3.8vw, 3.2rem); color: var(--navy); margin-bottom: 16px; }
.article-head__meta { display: flex; flex-wrap: wrap; gap: 18px; font-family: var(--font-mono); font-size: 11px; color: var(--steel); margin-top: 18px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(16em, 300px); gap: 56px; align-items: start; }
.article-body { max-width: 48em; }
.article-body .lead { font-size: 17.5px; line-height: 1.85; color: var(--ink); border-left: 3px solid var(--copper); padding-left: 18px; margin-bottom: 30px; }
.article-body h2 { font-size: clamp(1.4rem, 2.2vw, 1.75rem); color: var(--navy); margin: 38px 0 12px; }
.article-body h3 { font-size: 17px; color: var(--navy); margin: 26px 0 8px; }
.article-body p { font-size: 15.5px; color: var(--ink-2); }
.article-body ul, .article-body ol { margin: 0 0 20px; }
.article-body ul li { position: relative; padding-left: 20px; margin-bottom: 8px; font-size: 15px; color: var(--ink-2); }
.article-body ul li::before { content: ""; position: absolute; left: 0; top: .72em; width: 7px; height: 7px; background: var(--copper); transform: rotate(45deg); }
.article-body ol { counter-reset: step; }
.article-body ol li { position: relative; padding-left: 30px; margin-bottom: 10px; font-size: 15px; color: var(--ink-2); counter-increment: step; }
.article-body ol li::before { content: counter(step, decimal-leading-zero); position: absolute; left: 0; top: 2px; font-family: var(--font-mono); font-size: 11px; color: var(--blue); }
.article-body code { background: var(--ice); border: 1px solid var(--line); padding: 1px 5px; font-size: 12.5px; color: var(--navy); }
.article-body .source-note { margin-top: 30px; }
.article-aside { position: sticky; top: calc(var(--header-h) + 24px); display: flex; flex-direction: column; gap: 16px; }

/* 文章内表格 */
.article-body .data-table { margin: 20px 0 26px; font-size: 13.5px; }
.article-body .data-table th { white-space: normal; }
.article-body .data-table td:first-child { font-family: var(--font-mono); font-size: 12px; color: var(--navy); }

/* ── FAQ ──────────────────────────────────────────────── */
.faq-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(16em, 320px); gap: 56px; align-items: start; }
.faq-item { border-top: 1px solid var(--line-2); background: #fff; }
.faq-item:last-child { border-bottom: 1px solid var(--line-2); }
.faq-item summary {
  display: flex;
  gap: 16px;
  align-items: baseline;
  padding: 20px 20px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 650;
  color: var(--navy);
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--blue);
  line-height: 1;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item__no { font-family: var(--font-mono); font-size: 11px; color: var(--copper); flex: 0 0 auto; }
.faq-item__body { padding: 0 20px 22px 47px; }
.faq-item__body p { font-size: 14.5px; color: var(--ink-2); margin: 0; }
.faq-aside { position: sticky; top: calc(var(--header-h) + 24px); display: flex; flex-direction: column; gap: 16px; }

/* ── 核验页 ───────────────────────────────────────────── */
.verify { display: grid; grid-template-columns: minmax(0, 1fr) minmax(16em, 300px); gap: 56px; align-items: start; }
.verify__main .block h2 { font-size: 21px; color: var(--navy); margin-bottom: 12px; }
.verify__main .block p { font-size: 14.5px; color: var(--ink-2); }
.verify__aside { position: sticky; top: calc(var(--header-h) + 24px); display: flex; flex-direction: column; gap: 16px; }
.fact-list > div { display: flex; justify-content: space-between; gap: 18px; padding: 7px 0; border-bottom: 1px solid var(--line); font-size: 12.5px; }
.fact-list dt { color: var(--steel); }
.fact-list dd { margin: 0; text-align: right; color: var(--ink); }

/* ── 关于 ─────────────────────────────────────────────── */
.about-mark { background: var(--navy); padding: 30px; color: #fff; }
.about-mark img { background: #fff; padding: 14px; width: 100%; max-width: 340px; height: auto; }
.about-mark__line { display: block; width: 64px; height: 2px; background: var(--copper); margin: 22px 0 14px; }
.about-mark__text { font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; line-height: 1.9; color: #b7d1de; }
.about-body { display: grid; grid-template-columns: minmax(16em, 1.3fr) minmax(16em, .7fr); gap: 56px; align-items: start; }
.about-body__aside { display: flex; flex-direction: column; gap: 16px; }
.operator-note { margin-top: 30px; padding: 22px; border: 1px solid var(--line); border-left: 4px solid var(--copper); background: #fff; }
.operator-note h2 { font-size: 17px; color: var(--navy); margin-bottom: 8px; }
.operator-note p { font-size: 13.5px; color: var(--ink-2); margin-bottom: 8px; }
.operator-note p:last-child { margin-bottom: 0; }
.timeline { border-left: 2px solid var(--line-2); margin-left: 8px; }
.timeline li { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 24px; padding: 0 0 22px 24px; position: relative; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -7px; top: 8px;
  width: 12px; height: 12px;
  background: var(--blue);
  border: 3px solid var(--ice);
  border-radius: 50%;
}
.timeline__year { font-family: var(--font-mono); font-size: 14px; font-weight: 700; color: var(--navy); }
.timeline__text { font-size: 14.5px; color: var(--ink-2); }
.cert-wall { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.cert-wall__item { padding: 16px 10px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; text-align: center; min-width: 0; }
.cert-wall__item img { width: 40px; height: 40px; object-fit: contain; margin: 0 auto 8px; }
.cert-wall__item b { display: block; font-family: var(--font-mono); font-size: 11px; color: var(--navy); }
.cert-wall__item span { display: block; font-size: 9.5px; line-height: 1.45; color: var(--steel); margin-top: 3px; }

/* ── 联系 ─────────────────────────────────────────────── */
.contact-layout { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(16em, .7fr); gap: 56px; align-items: start; }
.contact-form { background: #fff; border: 1px solid var(--line); padding: 30px; }
.contact-aside { display: flex; flex-direction: column; gap: 16px; }
.contact-aside__name { font-weight: 700; color: var(--navy); }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.form__field { margin-bottom: 16px; min-width: 0; }
.form__field label { display: block; font-size: 12.5px; color: var(--ink-2); margin-bottom: 5px; }
.form__field label span { color: var(--copper); }
.form__field input, .form__field textarea {
  width: 100%;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-xs);
  background: var(--paper-2);
  padding: 10px 12px;
  font-size: 14px;
}
.form__field input { height: 44px; }
.form__field textarea { resize: vertical; min-height: 120px; }
.form__field input:focus, .form__field textarea:focus { border-color: var(--blue); outline: none; background: #fff; box-shadow: 0 0 0 3px rgba(0,135,203,.1); }
.form__honey { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__foot { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; margin-top: 6px; }
.form__note { font-size: 11.5px; color: var(--steel); margin: 0; max-width: 32em; }
.form__note a { text-decoration: underline; }
.form__status { margin-top: 16px; padding: 12px 14px; font-size: 13.5px; border: 1px solid var(--line); background: var(--ice); color: var(--ink); }
.form__status.is-error { border-color: #e3b6b0; background: #fbeeec; color: var(--danger); }
.form__status.is-ok { border-color: #b6d9c8; background: #eef8f2; color: var(--ok); }
.form-fallback { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--steel); }
.form-fallback strong { color: var(--ink); }

/* ── 搜索 ─────────────────────────────────────────────── */
.search-head { max-width: 52em; }
.search-head h1 { font-size: clamp(2rem, 3.6vw, 3rem); color: var(--navy); margin-bottom: 20px; }
.search-form { display: flex; gap: 10px; max-width: 44em; }
.search-form input { flex: 1; height: 50px; border: 1px solid var(--line-2); background: #fff; padding: 0 14px; font-size: 16px; border-radius: var(--radius-sm); }
.search-form input:focus { border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px rgba(0,135,203,.12); }
.search-tips { margin-top: 14px; font-size: 12.5px; color: var(--steel); display: flex; flex-wrap: wrap; gap: 8px 14px; }
.search-tips a { font-family: var(--font-mono); color: var(--brand); border-bottom: 1px dashed var(--line-2); }
.search-status { font-family: var(--font-mono); font-size: 12px; color: var(--steel); margin-bottom: 18px; }
.search-results { display: flex; flex-direction: column; gap: 0; background: #fff; border: 1px solid var(--line); }
.search-results:empty { display: none; }
.search-result { display: block; padding: 16px 18px; border-bottom: 1px solid var(--line); color: var(--ink); }
.search-result:last-child { border-bottom: 0; }
.search-result:hover { background: var(--ice); color: var(--ink); }
.search-result__top { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.search-result__type { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .08em; color: var(--copper); border: 1px solid var(--line-2); padding: 1px 6px; }
.search-result__title { font-weight: 650; font-size: 15px; color: var(--navy); }
.search-result__sku { font-family: var(--font-mono); font-size: 11px; color: var(--blue-2); }
.search-result__sub { display: block; font-size: 12.5px; color: var(--steel); margin-top: 3px; }
.search-fallback { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--line); }
.search-fallback h2 { font-size: 20px; color: var(--navy); margin: 26px 0 14px; }

/* ── 选型 ─────────────────────────────────────────────── */
.selector-steps { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--line-2); }
.selector-steps li { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line-2); }
.selector-steps li > span { font-family: var(--font-mono); font-size: 11px; color: var(--copper); flex: 0 0 auto; padding-top: 2px; }
.selector-steps b { display: block; font-size: 14px; color: var(--navy); }
.selector-steps small { display: block; font-size: 11.5px; color: var(--steel); }

/* ── 404 ──────────────────────────────────────────────── */
.notfound { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 48px; align-items: center; padding: 40px 0; }
.notfound__code { font-family: var(--font-mono); font-size: clamp(5rem, 14vw, 11rem); line-height: .9; color: var(--ice-2); font-weight: 700; letter-spacing: -.04em; }
.notfound h1 { font-size: clamp(2rem, 3.6vw, 3rem); color: var(--navy); margin-bottom: 12px; }
.notfound p { color: var(--steel); max-width: 36em; }
.notfound__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

/* ── CTA 区 ───────────────────────────────────────────── */
.cta-band { background: var(--navy); color: #fff; padding: 54px 0; }
.cta-band__inner { display: flex; justify-content: space-between; align-items: center; gap: 48px; }
.cta-band__copy { max-width: 36em; }
.cta-band__copy h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); margin-bottom: 10px; }
.cta-band__copy p { color: #b7d1de; font-size: 14px; margin: 0; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; flex: 0 0 auto; }
.cta-band__phone { display: block; width: 100%; text-align: right; font-family: var(--font-mono); font-size: 11px; color: #8fb4c6; margin-top: 4px; }

/* ── 页脚 ─────────────────────────────────────────────── */
.footer { background: var(--navy-2); color: #b7d1de; border-top: 4px solid var(--copper); }
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr .8fr .8fr 1fr;
  gap: 44px;
  padding: 56px 0 40px;
}
.footer__brand p { font-size: 13px; margin: 14px 0 0; max-width: 26em; }
.footer__logo { display: inline-block; background: #fff; padding: 8px 10px; line-height: 0; }
.footer__logo img { width: 168px; height: auto; }
.footer__operator { color: #fff; font-weight: 650; }
.footer__note { color: #7fa3b5; font-size: 11.5px !important; line-height: 1.7; }
.footer__col h4 { font-size: 12px; color: #fff; letter-spacing: .06em; margin-bottom: 14px; }
.footer__col a, .footer__col > span { display: flex; justify-content: space-between; gap: 12px; font-size: 12.5px; color: #b7d1de; padding: 4px 0; }
.footer__col a:hover { color: #fff; }
.footer__col a span { font-family: var(--font-mono); font-size: 10px; color: #7fa3b5; }
.footer__contact { display: flex; flex-direction: column; }
.footer__contact a, .footer__contact > span { display: block; }
.footer__src { margin-top: 14px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.12); display: flex; flex-direction: column; gap: 4px; }
.footer__src span { font-size: 10px; color: #6f93a5; letter-spacing: .06em; }
.footer__src a { font-size: 11.5px; color: #9fc2d3; }
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 0 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: 11px;
  color: #7fa3b5;
}
.footer__legal { display: flex; gap: 18px; }
.footer__legal a { color: #b7d1de; }
.footer__source { color: #6f93a5; }

/* ── 动效 ─────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s var(--ease), transform .55s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ── 响应式 ───────────────────────────────────────────── */
@media (max-width: 1200px) {
  .hero__grid { gap: 44px; }
  .cat-grid, .series-grid, .app-grid, .resource-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .model-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer__grid { grid-template-columns: 1.4fr .8fr .8fr; }
  .footer__contact { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px 24px; }
  .footer__contact h4 { grid-column: 1 / -1; }
  .cert-wall { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}

@media (max-width: 1024px) {
  .article-body .data-table { min-width: 0; }
  .nav {
    position: fixed;
    top: 0; right: 0;
    width: min(84vw, 340px);
    height: 100vh;
    background: var(--navy);
    padding: 88px 24px 32px;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    transform: translateX(100%);
    transition: transform .26s var(--ease);
    z-index: 80;
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
  }
  .nav.is-open { transform: none; }
  .nav__link { color: #d5e7f0; height: 48px; padding: 0 12px; font-size: 16px; border-bottom: 1px solid rgba(255,255,255,.1); border-radius: 0; }
  .nav__link:hover { background: rgba(255,255,255,.06); color: #fff; }
  .nav__link.is-active { color: var(--cyan); }
  .nav__link.is-active::after { display: none; }
  .menu-btn { display: block; }
  .header__cta { display: none; }
  .header__inner { gap: 16px; }

  .hero__grid { grid-template-columns: 1fr; padding: 60px 0 64px; gap: 54px; }
  .hero__copy { max-width: 44em; }
  .hero__visual { max-width: 520px; margin: 0 auto; width: 100%; min-height: 0; }
  .hero__frame { margin: 0 auto; }
  .hero__chip--b { left: 0; }
  .hero__chip--a { right: -4%; }
  .hero__stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat { border-bottom: 1px solid rgba(255,255,255,.12); }
  .stat:nth-child(2n) { border-right: 0; }
  .stat:not(:first-child) { padding-left: 20px; }

  .split, .about-strip, .about-body { grid-template-columns: 1fr; gap: 36px; }
  .split__aside { position: static; }
  .series-body, .app-detail, .product__cols, .article-layout, .faq-layout, .verify, .contact-layout { grid-template-columns: 1fr; gap: 36px; }
  .product__aside, .article-aside, .faq-aside, .verify__aside { position: static; }
  .product__grid { grid-template-columns: 1fr; gap: 32px; }
  .product__info { max-width: 46em; }
  .gallery { max-width: 560px; }
  .page-hero__grid { grid-template-columns: 1fr; gap: 28px; align-items: start; }
  .page-hero__stats { max-width: 520px; }
  .page-hero__media { max-width: 520px; }
  .series-index { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .filter-bar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .filter-bar__field--text { grid-column: 1 / -1; }
  .model-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .table-wrap { display: block; width: 100%; max-width: 100%; min-width: 0; overflow-x: auto; contain: paint; -webkit-overflow-scrolling: touch; }
  .data-table { min-width: 760px; }
  .data-table thead th { position: static; }
  .spec-table { min-width: 0; }
  .cert-wall { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .notfound { grid-template-columns: 1fr; gap: 16px; }
  .notfound__code { font-size: 6rem; }
  .cta-band__inner { flex-direction: column; align-items: flex-start; gap: 24px; }
  .cta-band__actions { justify-content: flex-start; }
  .cta-band__phone { text-align: left; }
  .source-box { flex-direction: column; gap: 20px; }
  .source-box__links { flex-direction: row; flex-wrap: wrap; gap: 16px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
  .footer__contact { grid-column: 1 / -1; grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .wrap { width: min(calc(100% - 32px), var(--wrap)); }
  .article-body .data-table { min-width: 0; font-size: 12px; table-layout: fixed; }
  .article-body .data-table th,
  .article-body .data-table td { padding: 8px 6px; overflow-wrap: anywhere; white-space: normal; }
  .article-body code { overflow-wrap: anywhere; }
  .topbar__tag { display: none; }
  .topbar__inner { justify-content: flex-end; }
  .topbar__links { gap: 12px; }
  .topbar__source { display: none; }
  .header__inner { height: 64px; }
  :root { --header-h: 64px; }
  .logo__img img { width: 142px; }
  .logo__cn { display: none; }
  .section { padding: 60px 0; }
  .section--tight { padding: 42px 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 14px; margin-bottom: 28px; }
  .section-head__lead { max-width: 100%; }
  .hero__h1 { font-size: clamp(2.35rem, 11vw, 3.4rem); }
  .hero__sub { font-size: 15.5px; }
  .hero__facts { gap: 16px; font-size: 12px; }
  .hero__chip--a { top: -14px; right: 0; min-width: 160px; padding: 10px 12px; }
  .hero__chip--b { display: none; }
  .hero__certrail { bottom: -22px; gap: 8px; }
  .hero__certrail img:nth-child(n+6) { display: none; }
  .hero__stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat strong { font-size: 24px; }
  .cat-grid, .series-grid, .app-grid, .resource-grid, .article-grid, .model-grid, .link-grid, .link-grid--wide { grid-template-columns: 1fr; }
  .cat-grid { gap: 16px; }
  .proof-grid, .proof-grid--3 { grid-template-columns: 1fr; gap: 22px; }
  .cert-band__icons { grid-template-columns: repeat(4, 1fr); }
  .about-strip__facts { grid-template-columns: 1fr 1fr; }
  .series-index { grid-template-columns: 1fr; }
  .filter-bar { grid-template-columns: 1fr; padding: 14px; }
  .filter-bar__field--text { grid-column: auto; }
  .gallery__thumbs { grid-template-columns: repeat(4, 70px); }
  .gallery__thumb { width: 70px; height: 70px; }
  .key-specs { grid-template-columns: 1fr; }
  .product__meta { grid-template-columns: 1fr 1fr; gap: 8px 0; }
  .product__meta > div:last-child { grid-column: 1 / -1; }
  .sibling-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-hero { padding: 24px 0 40px; }
  .page-hero h1 { font-size: clamp(1.9rem, 8vw, 2.6rem); }
  .page-hero__stats { grid-template-columns: repeat(3, 1fr); }
  .page-hero__stats dd { font-size: 17px; }
  .app-row { grid-template-columns: 1fr; gap: 18px; padding: 24px 0; }
  .app-row__no { top: 16px; }
  .app-row__body { padding-right: 30px; }
  .form__row { grid-template-columns: 1fr; gap: 0; }
  .contact-form { padding: 20px; }
  .search-form { flex-direction: column; }
  .search-form input { width: 100%; }
  .notfound__code { font-size: 5rem; }
  .cert-wall { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer__grid { grid-template-columns: 1fr; gap: 28px; padding: 40px 0 28px; }
  .footer__contact { grid-column: auto; grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: 8px; }
  .cta-band__actions .btn { flex: 1 1 auto; }
  .source-box { padding: 20px; }
  .download-hero { max-width: 100%; }
  .article-card { padding: 22px; }
  .article-body .lead { font-size: 16px; }
  .faq-item summary { padding: 16px 14px; font-size: 15px; }
  .faq-item__body { padding: 0 14px 18px 40px; }
  .timeline li { grid-template-columns: 64px minmax(0, 1fr); gap: 14px; }
}

@media (max-width: 420px) {
  .wrap { width: calc(100% - 24px); }
  .hero__actions .btn { width: 100%; }
  .hero__chip--a { display: none; }
  .page-hero__stats { grid-template-columns: 1fr 1fr; }
  .cert-band__icons { grid-template-columns: repeat(3, 1fr); }
  .gallery__thumbs { grid-template-columns: repeat(4, 60px); }
  .gallery__thumb { width: 60px; height: 60px; }
  .sibling-grid { grid-template-columns: 1fr; }
  .cert-wall { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-band__actions { width: 100%; }
  .cta-band__actions .btn { width: 100%; }
}