/* ============================================================
   ARMYARMOR 军之甲 — Design System v2
   主色 #0b0404 · 强调色 #eb5313 · 工业军工科技风
   ============================================================ */
:root {
  --bg: #0b0404;
  --bg-2: #120806;
  --surface: #180c08;
  --surface-2: #1f110b;
  --line: rgba(235, 83, 19, 0.16);
  --line-soft: rgba(255, 255, 255, 0.08);
  --accent: #eb5313;
  --accent-2: #ff7a3c;
  --accent-glow: rgba(235, 83, 19, 0.35);
  --text: #f3eae4;
  --muted: #b3a299;
  --dim: #7d6f67;
  --radius: 14px;
  --radius-lg: 22px;
  --font-cn: "MiSans", "HarmonyOS Sans SC", "PingFang SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-disp: "Bahnschrift", "DIN Alternate", "Arial Narrow", "MiSans", "Microsoft YaHei", sans-serif;
  --maxw: 1240px;
  --header-h: 72px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(900px 520px at 85% -10%, rgba(235,83,19,0.11), transparent 62%),
    radial-gradient(700px 500px at -10% 45%, rgba(235,83,19,0.05), transparent 60%),
    var(--bg);
}
body::after {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.016) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.016) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 72%);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
::selection { background: var(--accent); color: #fff; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* 滚动进度 */
#scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 1002; transition: width .08s linear; box-shadow: 0 0 12px var(--accent-glow);
}

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-h);
  background: rgba(11,4,4,0.74);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-soft);
  transition: background .3s, box-shadow .3s;
}
.site-header.scrolled { background: rgba(11,4,4,0.94); box-shadow: 0 6px 30px rgba(0,0,0,.5); }
.header-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 24px; height: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { height: 44px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text .en { font-family: var(--font-disp); font-size: 19px; font-weight: 700; letter-spacing: .18em; }
.brand-text .zh { font-size: 11px; color: var(--dim); letter-spacing: .34em; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  position: relative; padding: 10px 15px; font-size: 15px; color: var(--muted);
  letter-spacing: .05em; transition: color .25s;
}
.main-nav a::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 4px; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0); transform-origin: left; transition: transform .3s; border-radius: 2px;
}
.main-nav a:hover, .main-nav a.active { color: var(--text); }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.header-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.lang-switch {
  display: flex; align-items: center; border: 1px solid var(--line-soft);
  border-radius: 100px; overflow: hidden; font-size: 12.5px; letter-spacing: .06em;
}
.lang-switch a { padding: 6px 12px; color: var(--dim); transition: .25s; }
.lang-switch a.on, .lang-switch a:hover { background: rgba(235,83,19,.16); color: var(--accent-2); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); transition: .3s; border-radius: 2px; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 30px; border-radius: 8px; font-size: 15px; font-weight: 600;
  letter-spacing: .06em; cursor: pointer; border: 0; transition: all .3s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #d43e05); color: #fff;
  box-shadow: 0 6px 24px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 34px rgba(235,83,19,.5); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid rgba(255,255,255,.22); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-2); transform: translateY(-2px); }
.btn-sm { padding: 9px 20px; font-size: 14px; }

/* 分区 */
.section { padding: 96px 0; position: relative; }
.section-tight { padding: 64px 0; }
.page-hero + .section { padding-top: 44px; }
/* 锚点跳转时留出吸附头部高度，避免目标标题被挡住 */
[id] { scroll-margin-top: 84px; }
.section-head { max-width: 760px; margin-bottom: 54px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-disp); font-size: 13px; font-weight: 700;
  letter-spacing: .3em; color: var(--accent); text-transform: uppercase; margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--accent); }
.section-head.center .eyebrow::after { content: ""; width: 26px; height: 2px; background: var(--accent); }
.section-title { font-size: clamp(28px, 4vw, 42px); font-weight: 800; line-height: 1.28; letter-spacing: .01em; }
.section-title em { font-style: normal; color: var(--accent); }
.section-sub { margin-top: 14px; color: var(--muted); font-size: 16px; }

/* 面包屑 & 内页 Hero */
.page-hero {
  position: relative; padding: calc(var(--header-h) + 76px) 0 60px;
  background:
    radial-gradient(800px 400px at 18% 0%, rgba(235,83,19,.14), transparent 60%),
    linear-gradient(180deg, var(--bg-2), var(--bg));
  overflow: hidden;
}
.crumbs { font-size: 13px; color: var(--dim); margin-bottom: 16px; letter-spacing: .06em; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--accent-2); }
.page-hero h1 { font-size: clamp(30px, 4.4vw, 46px); font-weight: 800; line-height: 1.24; }
.page-hero h1 em { font-style: normal; color: var(--accent); }
.page-hero .lede { margin-top: 14px; color: var(--muted); max-width: 700px; font-size: 16.5px; }

/* 首页 Hero（实景大图） */
.hero-photo {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding: calc(var(--header-h) + 40px) 0 80px; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(11,4,4,.94) 0%, rgba(11,4,4,.82) 38%, rgba(11,4,4,.35) 68%, rgba(11,4,4,.55) 100%),
    linear-gradient(180deg, rgba(11,4,4,.55), transparent 30%, rgba(11,4,4,.85) 100%);
}
.hero-inner { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; width: 100%; }
.hero-copy { max-width: 660px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px; padding: 8px 18px; border-radius: 100px;
  margin-bottom: 24px; border: 1px solid var(--line); background: rgba(235,83,19,.09);
  font-size: 13px; letter-spacing: .18em; color: var(--accent-2);
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); animation: pulse 1.8s infinite; }
@keyframes pulse { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.4); opacity: .55; } }
.hero-photo h1 { font-size: clamp(34px, 4.8vw, 60px); font-weight: 900; line-height: 1.18; letter-spacing: .01em; }
.hero-photo h1 .line-accent {
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { margin-top: 20px; color: #cdbdb4; font-size: 17px; max-width: 560px; }
.hero-actions { display: flex; gap: 16px; margin-top: 34px; flex-wrap: wrap; }
.hero-meta { display: flex; gap: 34px; margin-top: 46px; flex-wrap: wrap; }
.hero-meta div b { display: block; font-family: var(--font-disp); font-size: 30px; line-height: 1.1; color: #fff; }
.hero-meta div b i { font-style: normal; color: var(--accent); }
.hero-meta div span { font-size: 12.5px; color: var(--dim); letter-spacing: .1em; }

/* 数据条 */
.stats-band { position: relative; z-index: 3; border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); background: rgba(18,8,6,.62); }
.stats-grid { max-width: var(--maxw); margin: 0 auto; padding: 34px 24px; display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.stat { text-align: center; position: relative; }
.stat + .stat::before { content: ""; position: absolute; left: -12px; top: 15%; bottom: 15%; width: 1px; background: linear-gradient(180deg, transparent, var(--line), transparent); }
.stat .num { font-family: var(--font-disp); font-size: clamp(30px,3.4vw,44px); font-weight: 700; line-height: 1.1; }
.stat .num span { color: var(--accent); }
.stat .label { margin-top: 6px; font-size: 13.5px; color: var(--dim); letter-spacing: .1em; }

/* 跑马灯 */
.marquee-wrap { overflow: hidden; border-bottom: 1px solid var(--line-soft); background: var(--bg-2); padding: 18px 0; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee { display: flex; gap: 56px; width: max-content; animation: marquee 34s linear infinite; }
.marquee-wrap:hover .marquee { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.marquee-item { display: flex; align-items: center; gap: 12px; white-space: nowrap; font-family: var(--font-disp); letter-spacing: .2em; font-size: 14px; color: var(--dim); text-transform: uppercase; }
.marquee-item i { width: 6px; height: 6px; background: var(--accent); transform: rotate(45deg); display: inline-block; }

/* 网格 */
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 26px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 22px; }

/* 系列卡 */
.series-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line-soft); display: flex; flex-direction: column;
  transition: transform .4s cubic-bezier(.2,.7,.3,1), border-color .4s, box-shadow .4s;
}
.series-card:hover { transform: translateY(-8px); border-color: rgba(235,83,19,.45); box-shadow: 0 24px 60px rgba(0,0,0,.55), 0 0 40px rgba(235,83,19,.1); }
.series-card .thumb { position: relative; aspect-ratio: 16/10; overflow: hidden; background: #efe9e4; }
.series-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2,.7,.3,1); }
.series-card:hover .thumb img { transform: scale(1.06); }
.series-card .thumb .tag { position: absolute; top: 14px; left: 14px; font-family: var(--font-disp); font-weight: 700; font-size: 13.5px; letter-spacing: .12em; background: rgba(11,4,4,.86); color: var(--accent-2); border: 1px solid rgba(235,83,19,.45); padding: 5px 13px; border-radius: 6px; backdrop-filter: blur(4px); }
.series-card .body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.series-card h3 { font-size: 19px; font-weight: 700; }
.series-card .en { font-family: var(--font-disp); font-size: 12px; color: var(--dim); letter-spacing: .14em; text-transform: uppercase; margin-top: 4px; }
.series-card p { margin-top: 11px; color: var(--muted); font-size: 14.5px; flex: 1; }
.series-card .more { margin-top: 16px; display: inline-flex; align-items: center; gap: 8px; color: var(--accent-2); font-size: 14px; font-weight: 600; letter-spacing: .04em; }

/* 优势卡 */
.feature-card { padding: 28px 26px; border-radius: var(--radius); background: linear-gradient(180deg, var(--surface-2), var(--surface)); border: 1px solid var(--line-soft); position: relative; overflow: hidden; transition: transform .35s, border-color .35s; }
.feature-card:hover { transform: translateY(-5px); border-color: rgba(235,83,19,.4); }
.feature-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--accent), transparent 70%); opacity: 0; transition: opacity .35s; }
.feature-card:hover::before { opacity: 1; }
.feature-card .ico { width: 50px; height: 50px; border-radius: 12px; display: grid; place-items: center; background: rgba(235,83,19,.12); border: 1px solid var(--line); color: var(--accent-2); margin-bottom: 16px; }
.feature-card h3 { font-size: 17.5px; margin-bottom: 8px; }
.feature-card p { color: var(--muted); font-size: 14.5px; }
.feature-card .idx { position: absolute; right: 18px; top: 12px; font-family: var(--font-disp); font-size: 42px; font-weight: 700; color: rgba(255,255,255,.045); }

/* 应用场景卡 */
.app-card { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4/3; border: 1px solid var(--line-soft); }
.app-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.app-card:hover img { transform: scale(1.07); }
.app-card .mask { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(11,4,4,.93) 100%); }
.app-card .cap { position: absolute; left: 18px; right: 18px; bottom: 14px; display: flex; flex-direction: column; }
.app-card .cap b { font-size: 16.5px; }
.app-card .cap span { font-size: 11.5px; color: var(--accent-2); letter-spacing: .12em; font-family: var(--font-disp); text-transform: uppercase; }

/* 图文分栏 */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split .media { position: relative; }
.split .media img { border-radius: var(--radius-lg); border: 1px solid var(--line-soft); box-shadow: 0 24px 70px rgba(0,0,0,.55); }
.float-badge { position: absolute; right: -14px; bottom: -14px; background: linear-gradient(135deg, var(--accent), #c93f04); color: #fff; border-radius: 14px; padding: 16px 22px; text-align: center; box-shadow: 0 16px 40px rgba(235,83,19,.4); }
.float-badge b { font-family: var(--font-disp); font-size: 26px; display: block; line-height: 1.1; }
.float-badge span { font-size: 12px; letter-spacing: .12em; }
.check-list { margin-top: 22px; display: grid; gap: 13px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--muted); font-size: 15px; }
.check-list li b { color: var(--text); font-weight: 600; }
.check-list .ck { flex-shrink: 0; width: 22px; height: 22px; border-radius: 6px; margin-top: 3px; background: rgba(235,83,19,.15); border: 1px solid var(--line); display: grid; place-items: center; color: var(--accent-2); font-size: 12px; font-weight: 800; }

/* 工厂图库 */
.factory-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.factory-grid .ph { position: relative; border-radius: 12px; overflow: hidden; aspect-ratio: 4/3; border: 1px solid var(--line-soft); }
.factory-grid .ph img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.factory-grid .ph:hover img { transform: scale(1.06); }
.factory-grid .ph figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 14px 10px; background: linear-gradient(180deg, transparent, rgba(11,4,4,.92)); font-size: 12.5px; letter-spacing: .06em; }
.factory-grid .ph.wide { grid-column: span 2; }

/* 产品筛选与网格 */
.filter-bar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 30px; }
.filter-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { padding: 9px 20px; border-radius: 100px; font-size: 14px; border: 1px solid var(--line-soft); color: var(--muted); background: rgba(255,255,255,.02); cursor: pointer; transition: .25s; font-family: var(--font-cn); }
.chip:hover, .chip.on { border-color: var(--accent); color: var(--accent-2); background: rgba(235,83,19,.1); }
.search-box { position: relative; }
.search-box input { width: 260px; padding: 10px 16px 10px 40px; border-radius: 100px; background: rgba(255,255,255,.04); border: 1px solid var(--line-soft); color: var(--text); font-size: 14px; }
.search-box input:focus { outline: none; border-color: var(--accent); }
.search-box svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--dim); }
.model-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.model-card { background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; transition: transform .35s, border-color .35s, box-shadow .35s; }
.model-card:hover { transform: translateY(-5px); border-color: rgba(235,83,19,.45); box-shadow: 0 18px 40px rgba(0,0,0,.5); }
.model-card .ph { aspect-ratio: 4/3; background: #f1ece8; display: grid; place-items: center; padding: 12px; overflow: hidden; position: relative; }
.model-card .ph img { max-height: 100%; width: auto; max-width: 100%; object-fit: contain; transition: transform .5s; }
.model-card .ip-badge { position: absolute; top: 8px; right: 8px; padding: 2px 7px; border-radius: 5px; font-family: var(--font-disp); font-size: 10.5px; font-weight: 700; letter-spacing: .05em; color: #fff; background: rgba(235,83,19,.9); }
.model-card:hover .ph img { transform: scale(1.05); }
.model-card .info { padding: 14px 16px 16px; }
.model-card .m { font-family: var(--font-disp); font-size: 17px; font-weight: 700; letter-spacing: .06em; color: var(--text); }
.model-card .s { font-size: 12px; color: var(--dim); margin-top: 2px; }
.model-card .k { display: flex; justify-content: space-between; gap: 8px; margin-top: 10px; font-size: 11.5px; color: var(--muted); border-top: 1px solid var(--line-soft); padding-top: 9px; }
.model-card .k b { color: var(--accent-2); font-weight: 600; font-family: var(--font-disp); }
.empty-tip { display: none; text-align: center; color: var(--dim); padding: 50px 0; }

/* 产品详情 */
.product-hero { padding: calc(var(--header-h) + 56px) 0 40px; }
.product-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: start; }
.product-layout > * { min-width: 0; }
.gallery-panel { position: sticky; top: calc(var(--header-h) + 24px); }
.gallery-main { background: #f2ede9; border-radius: var(--radius-lg); border: 1px solid var(--line-soft); padding: 26px; display: grid; place-items: center; aspect-ratio: 4/3.2; }
.gallery-main img { max-width: 100%; max-height: 100%; object-fit: contain; }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.badge { font-size: 12.5px; padding: 6px 13px; border-radius: 8px; border: 1px solid var(--line); color: var(--accent-2); background: rgba(235,83,19,.09); letter-spacing: .04em; }
.badge.grey { border-color: var(--line-soft); color: var(--muted); background: rgba(255,255,255,.03); }
.product-title { font-size: clamp(26px,3.4vw,38px); font-weight: 800; line-height: 1.25; }
.product-title .code { color: var(--accent); }
.product-series-link { font-family: var(--font-disp); font-size: 13px; letter-spacing: .16em; color: var(--dim); text-transform: uppercase; margin-top: 8px; display: block; }
.key-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
.key-specs > * { min-width: 0; }
.key-spec { background: var(--surface); border: 1px solid var(--line-soft); border-radius: 12px; padding: 14px 16px; }
.key-spec span { display: block; font-size: 12px; color: var(--dim); letter-spacing: .08em; }
.key-spec b { display: block; margin-top: 4px; font-family: var(--font-disp); font-size: 17px; color: var(--text); letter-spacing: .02em; overflow-wrap: anywhere; }
.key-spec b em { font-style: normal; font-size: 12px; color: var(--dim); }
.product-actions { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; border: 1px solid var(--line-soft); border-radius: 12px; overflow: hidden; table-layout: fixed; }
.spec-table th, .spec-table td { padding: 12px 16px; border-bottom: 1px solid var(--line-soft); text-align: left; }
.spec-table td { overflow-wrap: anywhere; }
.spec-table th { width: 42%; color: var(--dim); font-weight: 500; background: rgba(255,255,255,.025); font-size: 13px; }
.spec-table td { font-family: var(--font-disp); color: var(--text); letter-spacing: .02em; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.prose p { color: var(--muted); margin-bottom: 14px; font-size: 15.5px; }
.prose h2 { font-size: 24px; margin: 38px 0 16px; padding-left: 14px; border-left: 4px solid var(--accent); }
.prose h3 { font-size: 18px; margin: 26px 0 10px; }
.prose ul { margin: 0 0 16px 2px; }
.prose ul li { position: relative; padding-left: 20px; margin-bottom: 8px; color: var(--muted); font-size: 15px; }
.prose ul li::before { content: ""; position: absolute; left: 2px; top: 11px; width: 7px; height: 7px; background: var(--accent); transform: rotate(45deg); }

/* 相关型号 */
.rel-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.rel-card { display: flex; gap: 12px; align-items: center; padding: 10px; border: 1px solid var(--line-soft); border-radius: 12px; background: var(--surface); transition: .3s; }
.rel-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.rel-card .ph { width: 64px; height: 56px; background: #f2ede9; border-radius: 8px; display: grid; place-items: center; padding: 4px; flex-shrink: 0; }
.rel-card .ph img { max-width: 100%; max-height: 100%; object-fit: contain; }
.rel-card b { display: block; font-family: var(--font-disp); font-size: 14.5px; letter-spacing: .05em; }
.rel-card span { font-size: 11.5px; color: var(--dim); }

/* FAQ */
.faq-item { border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--surface); overflow: hidden; transition: border-color .3s; }
.faq-item + .faq-item { margin-top: 12px; }
.faq-item:hover { border-color: rgba(235,83,19,.35); }
.faq-item summary { cursor: pointer; padding: 18px 22px; font-size: 15.5px; font-weight: 600; display: flex; justify-content: space-between; align-items: center; gap: 16px; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { flex-shrink: 0; width: 26px; height: 26px; border-radius: 8px; position: relative; background: rgba(235,83,19,.12); border: 1px solid var(--line); }
.faq-item summary .plus::before, .faq-item summary .plus::after { content: ""; position: absolute; background: var(--accent-2); top: 50%; left: 50%; }
.faq-item summary .plus::before { width: 12px; height: 2px; transform: translate(-50%,-50%); }
.faq-item summary .plus::after { width: 2px; height: 12px; transform: translate(-50%,-50%); transition: transform .3s; }
.faq-item[open] summary .plus::after { transform: translate(-50%,-50%) scaleY(0); }
.faq-a { padding: 0 22px 20px; color: var(--muted); font-size: 14.5px; }

/* 视频 */
.video-frame { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); background: #000; box-shadow: 0 24px 60px rgba(0,0,0,.6); }
.video-frame video { width: 100%; display: block; aspect-ratio: 16/9; object-fit: cover; background: #000; }
.video-frame .video-poster { width: 100%; display: block; aspect-ratio: 16/9; object-fit: cover; }
.video-frame::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(180deg, rgba(11,4,4,.30) 0%, transparent 26%, transparent 62%, rgba(11,4,4,.72) 100%); }
.video-frame.loaded::after { display: none; }
.video-play { position: absolute; inset: 0; display: grid; place-items: center; background: none; border: 0; cursor: pointer; z-index: 2; }
.video-play .ring { position: relative; width: 92px; height: 92px; border-radius: 50%; display: grid; place-items: center; background: linear-gradient(135deg, var(--accent), #c93f04); box-shadow: 0 14px 44px rgba(235,83,19,.55); transition: transform .3s; }
.video-play .ring::before { content: ""; width: 0; height: 0; margin-left: 7px; border-left: 27px solid #fff; border-top: 17px solid transparent; border-bottom: 17px solid transparent; }
.video-play .ring::after { content: ""; position: absolute; inset: -10px; border-radius: 50%; border: 1px solid rgba(235,83,19,.55); animation: vpulse 2.6s ease-out infinite; }
@keyframes vpulse { 0% { transform: scale(.92); opacity: .9; } 70% { transform: scale(1.28); opacity: 0; } 100% { opacity: 0; } }
.video-play:hover .ring { transform: scale(1.07); }
.video-cap { position: absolute; left: 20px; bottom: 16px; z-index: 3; font-size: 12.5px; letter-spacing: .1em; color: #f0e3da; background: rgba(11,4,4,.62); padding: 6px 13px; border-radius: 8px; backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,.09); }
.video-meta { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 22px; }
.video-meta span { font-size: 12.5px; letter-spacing: .06em; color: var(--muted); border: 1px solid var(--line-soft); background: var(--surface); border-radius: 100px; padding: 7px 15px; }
.video-meta span b { color: var(--accent-2); font-family: var(--font-disp); }

/* 证书墙 */
.cert-wall { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.cert-item { border: 1px solid var(--line-soft); border-radius: 12px; overflow: hidden; background: #fff; cursor: zoom-in; transition: transform .3s, border-color .3s; min-width: 0; }
.cert-item:hover { transform: translateY(-4px); border-color: var(--accent); }
.cert-item img { width: 100%; aspect-ratio: 3/4; object-fit: cover; object-position: top; }
/* 第 12 格：索取报告入口，补齐 4 列 / 2 列末行，避免留白 */
.cert-cta {
  display: flex; flex-direction: column; justify-content: center; gap: 12px; min-width: 0;
  padding: 24px 20px; border-radius: 12px; text-decoration: none; color: var(--text);
  border: 1px dashed rgba(235,83,19,.45);
  background: linear-gradient(155deg, rgba(235,83,19,.16), rgba(235,83,19,.02) 70%);
  transition: transform .3s, border-color .3s, background .3s;
}
.cert-cta:hover { transform: translateY(-4px); border-color: var(--accent); background: linear-gradient(155deg, rgba(235,83,19,.24), rgba(235,83,19,.04) 70%); }
.cert-cta .ic { width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; background: rgba(235,83,19,.18); color: var(--accent-2); flex: none; font-style: normal; }
.cert-cta b { font-size: 15px; line-height: 1.45; font-weight: 700; overflow-wrap: break-word; }
.cert-cta span { font-size: 12.5px; line-height: 1.55; color: var(--muted); overflow-wrap: break-word; }
.cert-cta em { font-style: normal; display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 700; color: var(--accent); letter-spacing: .04em; white-space: nowrap; }
.cert-cta em::after { content: "→"; transition: transform .3s; }
.cert-cta:hover em::after { transform: translateX(4px); }
.lightbox { position: fixed; inset: 0; z-index: 1200; background: rgba(3,1,1,.94); display: none; align-items: center; justify-content: center; padding: 40px; }
.lightbox.open { display: flex; }
.lightbox img { max-width: 92vw; max-height: 88vh; border-radius: 8px; box-shadow: 0 30px 80px #000; }
.lightbox button { position: absolute; top: 22px; right: 26px; background: none; border: 1px solid var(--line); color: #fff; width: 44px; height: 44px; border-radius: 50%; font-size: 20px; cursor: pointer; }

/* 新闻 */
.news-card { display: flex; flex-direction: column; border-radius: var(--radius-lg); overflow: hidden; background: var(--surface); border: 1px solid var(--line-soft); transition: transform .35s, border-color .35s, box-shadow .35s; }
.news-card:hover { transform: translateY(-6px); border-color: rgba(235,83,19,.4); box-shadow: 0 20px 50px rgba(0,0,0,.5); }
.news-card .cover { aspect-ratio: 16/9; overflow: hidden; position: relative; background: var(--surface-2); }
.news-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.news-card:hover .cover img { transform: scale(1.06); }
.news-card .cover .cat { position: absolute; top: 14px; left: 14px; font-size: 12px; letter-spacing: .1em; background: rgba(235,83,19,.92); color: #fff; padding: 4px 12px; border-radius: 6px; }
.news-card .body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
.news-card .meta { font-size: 12px; color: var(--dim); display: flex; gap: 12px; margin-bottom: 9px; }
.news-card h3 { font-size: 17px; line-height: 1.5; }
.news-card h3 a:hover { color: var(--accent-2); }
.news-card p { margin-top: 9px; color: var(--muted); font-size: 14px; flex: 1; }
.news-card .more { margin-top: 14px; font-size: 13.5px; color: var(--accent-2); font-weight: 600; }

/* 文章 */
.article-wrap { max-width: 820px; margin: 0 auto; }
.article-meta { display: flex; flex-wrap: wrap; gap: 16px; color: var(--dim); font-size: 13px; margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid var(--line-soft); }
.article-body { font-size: 16px; color: #d8ccc4; }
.article-body h2 { font-size: 23px; margin: 40px 0 15px; padding-left: 14px; border-left: 4px solid var(--accent); line-height: 1.4; }
.article-body p { margin-bottom: 15px; }
.article-body ul { margin: 0 0 18px 4px; }
.article-body ul li { padding-left: 20px; position: relative; margin-bottom: 8px; color: var(--muted); }
.article-body ul li::before { content: ""; position: absolute; left: 2px; top: 11px; width: 7px; height: 7px; background: var(--accent); transform: rotate(45deg); }
.article-body blockquote { border-left: 4px solid var(--accent); background: rgba(235,83,19,.06); padding: 16px 20px; border-radius: 0 10px 10px 0; margin: 22px 0; color: var(--muted); }
.article-img { border-radius: var(--radius-lg); margin: 8px 0 30px; border: 1px solid var(--line-soft); }

/* 联系 */
.contact-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.contact-card { padding: 28px 24px; border-radius: var(--radius); background: linear-gradient(180deg,var(--surface-2),var(--surface)); border: 1px solid var(--line-soft); text-align: center; transition: transform .35s, border-color .35s; }
.contact-card:hover { transform: translateY(-5px); border-color: rgba(235,83,19,.4); }
.contact-card .ico { width: 54px; height: 54px; margin: 0 auto 14px; border-radius: 14px; display: grid; place-items: center; color: var(--accent-2); background: rgba(235,83,19,.12); border: 1px solid var(--line); }
.contact-card h3 { font-size: 14px; color: var(--muted); font-weight: 500; letter-spacing: .1em; }
.contact-card .val { margin-top: 7px; font-size: 18px; font-weight: 700; }
.contact-card .val.small { font-size: 15px; font-weight: 500; line-height: 1.6; }
.contact-card .tip { margin-top: 6px; font-size: 12.5px; color: var(--dim); }
.contact-form { display: grid; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form label { font-size: 13px; color: var(--muted); display: block; margin-bottom: 7px; letter-spacing: .04em; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; padding: 12px 15px; border-radius: 10px; background: rgba(255,255,255,.035); border: 1px solid var(--line-soft); color: var(--text); font-size: 15px; font-family: var(--font-cn); transition: .3s; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--accent); background: rgba(235,83,19,.05); }
.contact-form option { background: var(--surface); }

/* 询盘页工厂实拍卡 */
.visit-card { position: relative; flex: 1; margin: 0; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); min-height: 380px; display: flex; }
.visit-card img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.visit-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,4,4,.05) 30%, rgba(11,4,4,.92)); }
.visit-card figcaption { position: relative; z-index: 2; margin-top: auto; padding: 26px 24px; }
.visit-card figcaption b { display: block; font-size: 18px; font-weight: 800; margin-bottom: 6px; }
.visit-card figcaption span { font-size: 13px; color: var(--muted); line-height: 1.6; }

/* 高德地图 */
.map-layout { display: grid; grid-template-columns: minmax(0,1fr) 360px; gap: 26px; align-items: stretch; }
.map-frame { position: relative; min-height: 470px; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.map-canvas { position: absolute; inset: 0; }
.map-badge {
  position: absolute; top: 14px; right: 14px; z-index: 6; pointer-events: none;
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted);
  background: rgba(11,4,4,.78); border: 1px solid var(--line-soft); border-radius: 100px; padding: 5px 11px;
}
.map-loading { position: absolute; inset: 0; display: grid; place-items: center; gap: 14px; color: var(--dim); font-size: 13px; z-index: 1; }
.map-frame.ready .map-loading { display: none; }
.map-loading .spin { width: 26px; height: 26px; border-radius: 50%; border: 2px solid rgba(235,83,19,.25); border-top-color: var(--accent); animation: mspin 1s linear infinite; }
@keyframes mspin { to { transform: rotate(360deg); } }
/* 自托管位置图（无密钥方案；SDK 失败时同样回退到这里） */
.map-frame.has-map .map-static { display: none; }
.map-frame.has-map.failed .map-static { display: block; }
.map-frame.has-map.failed .map-loading { display: none; }
.map-static { position: absolute; inset: 0; min-height: inherit; overflow: hidden; background: #100a08; }
.map-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.map-static::after { content: ""; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 90px 20px rgba(8,4,3,.55); }
.map-town {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); z-index: 2;
  display: inline-flex; align-items: center; gap: 9px; padding: 8px 16px 8px 13px;
  border-radius: 100px; background: rgba(11,4,4,.82); border: 1px solid rgba(235,83,19,.5);
  font-size: 13px; font-weight: 700; letter-spacing: .04em; color: #fff; white-space: nowrap;
  text-decoration: none; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 8px 26px rgba(0,0,0,.55); transition: border-color .3s, background .3s, transform .3s;
}
.map-town:hover { border-color: var(--accent); background: rgba(11,4,4,.92); transform: translate(-50%, -50%) scale(1.03); }
.map-town i { position: relative; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(235,83,19,.22); }
.map-town i::after { content: ""; position: absolute; inset: -6px; border-radius: 50%; border: 1px solid rgba(235,83,19,.55); animation: mpulse 2.2s ease-out infinite; }
.map-credit { position: absolute; right: 10px; bottom: 7px; z-index: 2; font-size: 10px; letter-spacing: .02em; color: rgba(255,255,255,.42); text-decoration: none; }
.map-credit:hover { color: rgba(255,255,255,.72); }
.map-side { border: 1px solid var(--line-soft); border-radius: var(--radius-lg); background: linear-gradient(180deg, var(--surface-2), var(--surface)); padding: 28px 26px; display: flex; flex-direction: column; }
.map-info { list-style: none; display: flex; flex-direction: column; gap: 20px; flex: 1; }
.map-info li { display: flex; gap: 13px; align-items: flex-start; }
.mi-ico { flex: none; color: var(--accent); margin-top: 2px; }
.mi-k { display: block; font-size: 11.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--dim); margin-bottom: 5px; }
.mi-v { font-size: 14.5px; line-height: 1.55; color: var(--text); }
.mi-v a { color: var(--text); text-decoration: none; }
.mi-v a:hover { color: var(--accent-2); }
.mi-v em { display: block; font-style: normal; font-size: 12.5px; color: var(--muted); margin-top: 3px; }
.map-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }
.map-actions .btn { justify-content: center; width: 100%; }
[data-copy].copied { border-color: var(--accent); color: var(--accent-2); }
/* 地图标记与信息窗（自定义，跟随深色主题） */
.amap-pin { position: relative; width: 22px; height: 22px; }
.amap-pin .dot { position: absolute; inset: 0; margin: auto; width: 14px; height: 14px; border-radius: 50%; background: var(--accent); border: 2px solid #fff; box-shadow: 0 0 0 4px rgba(235,83,19,.3); }
.amap-pin .pulse { position: absolute; left: 50%; top: 50%; width: 40px; height: 40px; margin: -20px 0 0 -20px; border-radius: 50%; background: rgba(235,83,19,.35); animation: mpulse 1.9s ease-out infinite; }
@keyframes mpulse { 0% { transform: scale(.45); opacity: .95; } 100% { transform: scale(1.7); opacity: 0; } }
.amap-iw { position: relative; max-width: 250px; padding: 11px 15px; border-radius: 10px; background: rgba(11,4,4,.95); border: 1px solid rgba(235,83,19,.42); box-shadow: 0 12px 34px rgba(0,0,0,.6); }
.amap-iw b { display: block; font-size: 13.5px; font-weight: 700; color: #fff; margin-bottom: 4px; line-height: 1.4; }
.amap-iw span { display: block; font-size: 12px; color: #b6a7a0; line-height: 1.55; }
.amap-iw::after { content: ""; position: absolute; left: 50%; bottom: -6px; width: 10px; height: 10px; margin-left: -5px; background: rgba(11,4,4,.95); border-right: 1px solid rgba(235,83,19,.42); border-bottom: 1px solid rgba(235,83,19,.42); transform: rotate(45deg); }

/* CTA */
.cta-band { position: relative; border-radius: var(--radius-lg); overflow: hidden; padding: 60px 44px; text-align: center; background: radial-gradient(700px 300px at 50% -40%, rgba(235,83,19,.28), transparent 70%), linear-gradient(180deg, var(--surface-2), var(--surface)); border: 1px solid var(--line); }
.cta-band h2 { font-size: clamp(24px,3.4vw,36px); }
.cta-band p { margin: 13px auto 28px; color: var(--muted); max-width: 580px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line-soft); background: linear-gradient(180deg, var(--bg-2), #070302); padding: 70px 0 0; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr .8fr .9fr 1.1fr; gap: 44px; padding-bottom: 48px; }
.footer-grid h4 { font-size: 15px; letter-spacing: .12em; margin-bottom: 18px; display: flex; align-items: center; gap: 8px; }
.footer-grid h4::before { content: ""; width: 14px; height: 2px; background: var(--accent); }
.footer-grid p { color: var(--dim); font-size: 14px; }
.footer-grid ul li { margin-bottom: 11px; }
.footer-grid ul a { color: var(--muted); font-size: 14px; transition: color .25s, padding .25s; }
.footer-grid ul a:hover { color: var(--accent-2); padding-left: 4px; }
.footer-contact li { display: flex; gap: 10px; color: var(--muted); font-size: 14px; align-items: flex-start; }
.footer-contact svg { flex-shrink: 0; margin-top: 4px; color: var(--accent); }
.footer-brand img { height: 50px; margin-bottom: 16px; }
.footer-bottom { border-top: 1px solid var(--line-soft); padding: 20px 0; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: var(--dim); font-size: 12.5px; }
.footer-bottom a { color: var(--dim); }
.footer-bottom a:hover { color: var(--accent-2); }

/* 返回顶部 */
#back-top { position: fixed; right: 24px; bottom: 24px; z-index: 999; width: 46px; height: 46px; border-radius: 12px; border: 1px solid var(--line); background: rgba(24,12,8,.9); color: var(--accent-2); cursor: pointer; display: grid; place-items: center; opacity: 0; transform: translateY(16px); transition: .35s; backdrop-filter: blur(8px); }
#back-top.show { opacity: 1; transform: translateY(0); }
#back-top:hover { background: var(--accent); color: #fff; }

/* 动画 */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s cubic-bezier(.2,.7,.3,1), transform .8s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }
.reveal[data-delay="4"] { transition-delay: .4s; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* 响应式 */
@media (max-width: 1100px) {
  .model-grid { grid-template-columns: repeat(3,1fr); }
  .product-layout { grid-template-columns: 1fr; gap: 32px; }
  .gallery-panel { position: static; }
}
@media (max-width: 1024px) {
  .grid-3, .grid-4, .contact-grid { grid-template-columns: repeat(2,1fr); }
  .factory-grid { grid-template-columns: repeat(2,1fr); }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-photo { min-height: 88vh; }
  .map-layout { grid-template-columns: 1fr; gap: 20px; }
  .map-frame { min-height: 400px; }
  .visit-card { min-height: 300px; }
}
@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .section { padding: 64px 0; }
  .main-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #0b0404; border-bottom: 1px solid var(--line); padding: 10px 24px 18px; display: none;
    box-shadow: 0 24px 40px rgba(0,0,0,.7); z-index: 60;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 13px 4px; border-bottom: 1px solid var(--line-soft); font-size: 16px; }
  .main-nav a::after { display: none; }
  .nav-toggle { display: flex; }
  .header-right .btn { display: none; }
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 18px; }
  .stat + .stat::before { display: none; }
  .model-grid { grid-template-columns: repeat(2,1fr); }
  .form-row { grid-template-columns: 1fr; }
  .cta-band { padding: 42px 22px; }
  .cert-wall { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .rel-grid { grid-template-columns: 1fr 1fr; }
  .search-box input { width: 100%; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .key-specs { grid-template-columns: 1fr; }
  .video-play .ring { width: 66px; height: 66px; }
  .video-play .ring::before { border-left-width: 21px; border-top-width: 13px; border-bottom-width: 13px; margin-left: 5px; }
  .video-play .ring::after { inset: -7px; }
  .video-cap { font-size: 11px; padding: 5px 10px; left: 12px; bottom: 10px; letter-spacing: .06em; }
  .video-meta { gap: 8px; margin-top: 16px; }
  .video-meta span { font-size: 11.5px; padding: 6px 12px; }
}
@media (max-width: 560px) {
  /* 4 项数据条走 2×2，避免末行只占左侧、右侧留白 */
  .hero-meta { display: grid; grid-template-columns: repeat(2,1fr); gap: 26px 18px; margin-top: 40px; }
  .hero-meta div b { font-size: 27px; }
}
@media (max-width: 480px) {
  .grid-3, .grid-4, .grid-2, .contact-grid, .model-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-actions .btn { width: 100%; }
  .brand-text .en { font-size: 16px; }
  .brand-text .zh { letter-spacing: .2em; }
  .rel-grid { grid-template-columns: 1fr; }
  .header-inner { padding: 0 16px; gap: 10px; }
  .brand { gap: 9px; min-width: 0; }
  .brand img { height: 36px; }
  .brand-text { min-width: 0; overflow: hidden; }
  .brand-text .en { letter-spacing: .1em; white-space: nowrap; }
  .brand-text .zh { white-space: nowrap; }
  html[lang="en"] .brand-text .zh { font-size: 9px; letter-spacing: .08em; }
  .lang-switch { font-size: 11.5px; }
  .lang-switch a { padding: 5px 9px; }
  .header-right { gap: 8px; }
  .nav-toggle { padding: 6px; }
  .cert-cta { padding: 20px 16px; }
  .cert-cta em { white-space: normal; }
  .map-frame { min-height: 330px; }
  .map-town { font-size: 12px; padding: 7px 13px 7px 11px; }
  .map-credit { font-size: 9px; right: 8px; bottom: 6px; }
  .map-side { padding: 22px 18px; }
  .map-info { gap: 16px; }
  .map-badge { top: 10px; right: 10px; font-size: 10px; padding: 4px 9px; }
}
@media (max-width: 360px) {
  /* 超窄屏：收紧头部，避免品牌 + 语言切换 + 汉堡按钮挤爆一行 */
  .header-inner { padding: 0 12px; gap: 7px; }
  .brand img { height: 32px; }
  .brand-text .en { font-size: 14px; letter-spacing: .05em; }
  html[lang="en"] .brand-text .zh { display: none; }
  .lang-switch { font-size: 11px; }
  .lang-switch a { padding: 4px 7px; }
  .header-right { gap: 6px; }
  .nav-toggle { padding: 4px; }
  .cert-cta { padding: 18px 14px; gap: 9px; }
  .cert-cta b { font-size: 13.5px; }
  .cert-cta span { font-size: 11.5px; }
  .cert-cta em { white-space: normal; font-size: 11.5px; overflow-wrap: anywhere; }
}