/* ==========================================================================
   浙江林浦机电设备有限公司 · 官网样式
   ========================================================================== */

:root {
  --navy: #061530;
  --navy-2: #0A2450;
  --primary: #0B4EA2;
  --primary-lt: #1668C4;
  --primary-soft: #EAF1FA;
  --accent: #F58812;
  --accent-dk: #D97400;
  --ink: #11151C;
  --ink-2: #3D4757;
  --gray: #6B7688;
  --gray-lt: #98A2B3;
  --line: #E3E8EF;
  --line-2: #EEF1F6;
  --bg-soft: #F6F8FB;
  --white: #fff;

  --radius: 4px;
  --radius-lg: 10px;
  --container: 1240px;
  --shadow-sm: 0 1px 2px rgba(16, 35, 65, .05);
  --shadow-md: 0 10px 30px -12px rgba(11, 42, 92, .22);
  --shadow-lg: 0 24px 60px -20px rgba(11, 42, 92, .3);

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
  --mono: "DIN Alternate", "Barlow", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  overflow-x: hidden;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font: inherit; color: inherit; }

::selection { background: var(--primary); color: #fff; }

/* ---------- 布局 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.section { padding: 96px 0; }
.section--tight { padding: 72px 0; }
.section--soft { background: var(--bg-soft); }

.section-head { margin-bottom: 52px; }
.section-head--center { text-align: center; max-width: 720px; margin-left: auto; margin-right: auto; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: .16em;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--accent);
  display: block;
}

h2.section-title {
  font-size: 34px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.01em;
}
h2.section-title em {
  font-style: normal;
  color: var(--primary);
}
.section-desc {
  margin-top: 16px;
  font-size: 15px;
  color: var(--gray);
  line-height: 1.9;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 26px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all .22s ease;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; flex: none; }

.btn--primary { background: var(--accent); color: #fff; box-shadow: 0 6px 18px -8px rgba(245, 136, 18, .9); }
.btn--primary:hover { background: var(--accent-dk); transform: translateY(-2px); box-shadow: 0 12px 26px -10px rgba(245, 136, 18, .95); }

.btn--solid { background: var(--primary); color: #fff; }
.btn--solid:hover { background: var(--primary-lt); transform: translateY(-2px); }

.btn--ghost { border: 1px solid rgba(255, 255, 255, .35); color: #fff; }
.btn--ghost:hover { border-color: #fff; background: rgba(255, 255, 255, .1); }

.btn--line { border: 1px solid var(--line); color: var(--ink); background: #fff; }
.btn--line:hover { border-color: var(--primary); color: var(--primary); }

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--navy);
  color: rgba(255, 255, 255, .68);
  font-size: 12.5px;
  line-height: 38px;
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.topbar-left { display: flex; align-items: center; gap: 18px; overflow: hidden; white-space: nowrap; min-width: 0; flex: 1 1 auto; }
.topbar-left span { display: inline-flex; align-items: center; gap: 6px; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.topbar-left svg { flex: none; }
.topbar .container { min-width: 0; }
.topbar-right { flex: 0 0 auto; }
.topbar-left svg { width: 13px; height: 13px; opacity: .7; }
.topbar-right { display: flex; align-items: center; gap: 20px; white-space: nowrap; }
.topbar-right a:hover { color: #fff; }
.topbar-hot { color: #fff; font-weight: 600; letter-spacing: .02em; }

/* ---------- 导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line-2);
  transition: box-shadow .25s;
}
.nav.is-stuck { box-shadow: 0 6px 24px -14px rgba(11, 42, 92, .4); }
.nav .container { display: flex; align-items: center; height: 74px; gap: 40px; }
/* 中等宽度下导航菜单可压缩，避免电话+按钮顶出容器 */
.nav-menu { min-width: 0; }
.nav-actions { flex: none; }

.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand img { height: 44px; width: auto; }
.brand-text { display: none; }

.nav-menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 74px;
  padding: 0 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  transition: color .18s;
  white-space: nowrap;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform .22s ease;
}
.nav-item:hover .nav-link,
.nav-link.is-active { color: var(--primary); }
.nav-item:hover .nav-link::after,
.nav-link.is-active::after { transform: scaleX(1); }
.nav-link .caret { width: 9px; height: 9px; opacity: .5; transition: transform .2s; }
.nav-item:hover .caret { transform: rotate(180deg); }

.nav-actions { display: flex; align-items: center; gap: 14px; flex: none; }
.nav-tel { display: flex; flex-direction: column; line-height: 1.2; text-align: right; }
.nav-tel small { font-size: 11px; color: var(--gray-lt); letter-spacing: .06em; }
.nav-tel b { font-family: var(--mono); font-size: 18px; color: var(--primary); letter-spacing: .01em; }
.nav .btn { height: 42px; padding: 0 20px; font-size: 14px; }

/* 产品下拉 */
.mega {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translate(-50%, 8px);
  width: 900px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  background: #fff;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transition: all .22s ease;
  z-index: 20;
}
.nav-item:hover .mega { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.mega-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 4px 16px; align-items: start; }
.mega a {
  display: block;
  padding: 11px 14px;
  font-size: 14px;
  color: var(--ink-2);
  border-radius: var(--radius);
  transition: all .16s;
}
.mega a span { display: block; font-size: 11px; color: var(--gray-lt); letter-spacing: .02em; }
.mega a:hover { background: var(--primary-soft); color: var(--primary); }
.mega-cell { padding: 7px 0; }
.mega-cat { font-weight: 600; }
.mega-sub { display: flex; flex-direction: column; gap: 1px; margin-top: 3px; }
.mega-sub a {
  display: block;
  padding: 3px 10px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-3, #6b7280);
  border-radius: 4px;
}
.mega-sub a:hover { background: var(--primary-soft); color: var(--primary); }
.mega-foot {
  margin-top: 8px;
  padding: 14px 16px;
  background: var(--bg-soft);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--gray);
}
.mega-foot a { color: var(--primary); font-weight: 600; font-size: 13px; }

.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 520px at 82% 8%, rgba(22, 104, 196, .5), transparent 62%),
    radial-gradient(600px 400px at 12% 96%, rgba(245, 136, 18, .13), transparent 65%),
    linear-gradient(158deg, #04101F 0%, #08203F 42%, #0A3A7E 100%);
  color: #fff;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(circle at 60% 40%, #000 10%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 60% 40%, #000 10%, transparent 78%);
  pointer-events: none;
}
.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 56px;
  padding-top: 84px;
  padding-bottom: 84px;
  min-height: 620px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px 7px 10px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 100px;
  font-size: 12.5px;
  letter-spacing: .05em;
  color: rgba(255, 255, 255, .82);
  background: rgba(255, 255, 255, .05);
  margin-bottom: 26px;
}
.hero-eyebrow i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  display: block;
  box-shadow: 0 0 0 3px rgba(245, 136, 18, .22);
}

.hero h1 {
  font-size: clamp(34px, 4.1vw, 54px);
  line-height: 1.24;
  font-weight: 700;
  letter-spacing: -.02em;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, #FFB347, #F58812 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  margin-top: 22px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .72);
  max-width: 520px;
}
.hero-sub b { color: #fff; font-weight: 600; }

.hero-cta { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 0;
  margin-top: 52px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, .13);
}
.hero-stats div { padding-right: 38px; margin-right: 38px; border-right: 1px solid rgba(255, 255, 255, .13); }
.hero-stats div:last-child { border: none; margin-right: 0; padding-right: 0; }
.hero-stats b {
  display: block;
  font-family: var(--mono);
  font-size: 30px;
  line-height: 1.1;
  color: #fff;
  letter-spacing: .01em;
}
.hero-stats b i { font-style: normal; font-size: 15px; color: var(--accent); margin-left: 2px; }
.hero-stats span { font-size: 12.5px; color: rgba(255, 255, 255, .55); letter-spacing: .04em; }

/* Hero 产品舞台 */
.hero-stage {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 520px;
  margin-left: auto;
  width: 100%;
}
.stage-glow {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(70, 150, 235, .45), transparent 66%);
  filter: blur(20px);
}
.stage-card {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: linear-gradient(160deg, #fff 0%, #EEF3FA 100%);
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, .65), inset 0 1px 0 #fff;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.stage-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .6);
  pointer-events: none;
}
.stage-img {
  grid-area: 1 / 1;
  width: 82%;
  height: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
  opacity: 0;
  transition: opacity .34s ease, width .45s cubic-bezier(.2, .7, .3, 1);
  animation: float 6s ease-in-out infinite;
  pointer-events: none;
}
.stage-img.is-on { opacity: 1; }
.hero-stage.is-open .stage-img { width: 60%; }
@keyframes float {
  0%, 100% { transform: translateY(-6px); }
  50% { transform: translateY(8px); }
}

.stage-chip {
  position: absolute;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(8px);
  border-radius: 10px;
  padding: 12px 18px;
  box-shadow: 0 18px 40px -18px rgba(0, 0, 0, .5);
  color: var(--ink);
  line-height: 1.35;
}
.stage-chip b { display: block; font-family: var(--mono); font-size: 18px; color: var(--primary); white-space: nowrap; }
.stage-chip span { font-size: 11.5px; color: var(--gray); }
.chip-1 { left: -4%; top: 16%; cursor: pointer; }
.chip-2 { right: -6%; bottom: 18%; }
.chip-2 b { color: var(--accent); }

.chip-1:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 46px -20px rgba(0, 0, 0, .62), 0 0 0 1px rgba(245, 136, 18, .5);
}

.stage-ring {
  position: absolute;
  inset: -7%;
  border: 1px dashed rgba(255, 255, 255, .16);
  border-radius: 50%;
}

/* ---------- 环形品类选择（hover「18 类」展开） ---------- */
.pump-ring {
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
}
.hero-stage.is-open .pump-ring { pointer-events: auto; }

.ring-item {
  position: absolute;
  left: 50%;
  top: 50%;
  padding: 7px 13px;
  border: 1px solid rgba(11, 78, 162, .16);
  border-radius: 100px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 8px 18px -10px rgba(4, 16, 31, .65);
  color: #12365f;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: .01em;
  white-space: nowrap;
  cursor: pointer;
  opacity: 0;
  transform: translate(-50%, -50%) translate(var(--x, 0), var(--y, 0)) scale(.55);
  transition:
    transform .38s cubic-bezier(.2, .75, .3, 1) var(--d, 0ms),
    opacity .3s ease var(--d, 0ms),
    background-color .18s ease,
    color .18s ease,
    border-color .18s ease;
}
.hero-stage.is-open .ring-item {
  opacity: 1;
  transform: translate(-50%, -50%) translate(var(--x, 0), var(--y, 0)) scale(1);
}
/* 展开态下悬停：优先级必须高于 .hero-stage.is-open .ring-item，否则放大被 scale(1) 覆盖 */
.hero-stage.is-open .ring-item:hover,
.hero-stage.is-open .ring-item.is-hot,
.ring-item:hover,
.ring-item.is-hot {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 16px 30px -8px rgba(245, 136, 18, .85), 0 0 0 4px rgba(245, 136, 18, .16);
  transform: translate(-50%, -50%) translate(var(--x, 0), var(--y, 0)) scale(1.2);
  transition:
    transform .2s cubic-bezier(.2, .8, .3, 1),
    background-color .18s ease,
    color .18s ease,
    border-color .18s ease,
    box-shadow .18s ease;
  z-index: 3;
}

/* 展开时让浮动徽标退场（保留占位与指针事件，避免抖动） */
.stage-chip { transition: opacity .25s ease, transform .25s ease; }
.hero-stage.is-open .stage-chip { opacity: 0; transform: scale(.96); }

/* ---------- 首屏底部「滑动了解更多」引导 ---------- */
.scroll-cue {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px 0 26px;
  background: linear-gradient(180deg, rgba(11, 42, 92, 0), rgba(130, 155, 185, .22));
  color: #fff;
  text-decoration: none;
}
.scroll-cue-circle {
  width: 46px; height: 46px;
  border: 1px solid rgba(255, 255, 255, .8);
  border-radius: 50%;
  display: grid;
  place-items: center;
  animation: cue-bob 1.9s ease-in-out infinite;
}
.scroll-cue-circle svg { width: 18px; height: 18px; }
.scroll-cue-text { font-size: 13px; font-weight: 600; letter-spacing: .14em; }
@keyframes cue-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

@media (prefers-reduced-motion: reduce) {
  .ring-item, .stage-img { transition-duration: .01ms; animation: none; }
  .scroll-cue-circle { animation: none; }
}

/* ---------- 优势条 ---------- */
.strengths { border-bottom: 1px solid var(--line-2); }
.strengths .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.strength {
  padding: 40px 30px 40px 0;
  border-right: 1px solid var(--line-2);
}
.strength:last-child { border-right: none; padding-right: 0; }
.strength:not(:first-child) { padding-left: 34px; }
.strength-top { display: flex; align-items: baseline; gap: 10px; margin-bottom: 10px; }
.strength-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: .06em;
}
.strength h3 { font-size: 17px; font-weight: 600; color: var(--ink); }
.strength p { font-size: 13.5px; color: var(--gray); line-height: 1.85; margin-top: 4px; }

/* ---------- 产品中心 ---------- */
.prod-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 42px;
  flex-wrap: wrap;
}
.prod-tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.prod-tab {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
  color: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 100px;
  background: #fff;
  transition: all .2s;
}
.prod-tab:hover { border-color: var(--primary); color: var(--primary); }
.prod-tab.is-active { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 600; }

.prod-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.prod-card {
  position: relative;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
  padding: 26px 24px 24px;
  transition: all .26s ease;
  overflow: hidden;
}
.prod-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.prod-card:hover { background: #FCFDFF; box-shadow: 0 20px 40px -28px rgba(11, 42, 92, .5); z-index: 2; }
.prod-card:hover::before { transform: scaleX(1); }
.prod-thumb {
  position: relative;
  height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.prod-thumb img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: transform .38s cubic-bezier(.2, .7, .3, 1);
}
.prod-card:hover .prod-thumb img { transform: scale(1.07); }
.prod-card h3 { font-size: 17px; font-weight: 600; color: var(--ink); letter-spacing: .01em; }
.prod-en {
  font-size: 11px;
  color: var(--gray-lt);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-top: 2px;
}
.prod-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.prod-tags span {
  font-size: 11.5px;
  color: var(--gray);
  background: var(--bg-soft);
  border-radius: 3px;
  padding: 2px 8px;
  line-height: 1.6;
}
.prod-more {
  position: absolute;
  right: 22px;
  bottom: 22px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--gray-lt);
  transition: all .24s;
}
.prod-more svg { width: 13px; height: 13px; }
.prod-card:hover .prod-more { background: var(--primary); border-color: var(--primary); color: #fff; }

.prod-cell--cta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  background: linear-gradient(150deg, var(--navy-2), var(--primary));
  color: #fff;
  padding: 32px 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.prod-cell--cta h3 { font-size: 19px; font-weight: 600; line-height: 1.5; }
.prod-cell--cta p { font-size: 13px; color: rgba(255, 255, 255, .66); line-height: 1.8; }
.prod-cell--cta .btn { height: 42px; font-size: 13.5px; padding: 0 20px; align-self: flex-start; }

/* ---------- 关于 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  gap: 72px;
  align-items: center;
}
.about-media { position: relative; }
.about-media img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.about-media::before {
  content: "";
  position: absolute;
  inset: 22px -22px -22px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  z-index: 0;
}
.about-media img { position: relative; z-index: 1; }
.about-badge { z-index: 2; }
.about-badge {
  position: absolute;
  right: -20px;
  bottom: -20px;
  background: var(--primary);
  color: #fff;
  padding: 20px 24px;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px -18px rgba(11, 78, 162, .8);
  line-height: 1.3;
}
.about-badge b { display: block; font-family: var(--mono); font-size: 28px; }
.about-badge span { font-size: 12px; opacity: .8; letter-spacing: .04em; }

.about-body p { font-size: 15px; color: var(--ink-2); line-height: 2; margin-bottom: 18px; }
.about-body p b { color: var(--ink); font-weight: 600; }

.about-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 32px;
}
.about-facts div { background: #fff; padding: 20px 22px; }
.about-facts dt { font-size: 12px; color: var(--gray-lt); letter-spacing: .04em; }
.about-facts dd { font-size: 15px; color: var(--ink); font-weight: 600; margin-top: 4px; }
/* 奇数项时最后一项通栏，避免右下留出灰底空格 */
.about-facts > div:nth-child(odd):last-child { grid-column: 1 / -1; }

/* ---------- 应用领域 ---------- */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.app-card {
  position: relative;
  height: 240px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--navy);
  display: flex;
  align-items: flex-end;
  padding: 26px;
}
.app-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .55;
  transition: all .5s ease;
}
.app-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 16, 31, .1) 0%, rgba(4, 16, 31, .55) 55%, rgba(4, 16, 31, .92) 100%);
}
.app-card:hover img { transform: scale(1.06); opacity: .7; }
.app-card-body { position: relative; z-index: 2; color: #fff; }
.app-card-body h3 { font-size: 19px; font-weight: 600; margin-bottom: 6px; }
.app-card-body p { font-size: 13px; color: rgba(255, 255, 255, .68); line-height: 1.7; }
.app-card-idx {
  position: absolute;
  top: 22px;
  right: 24px;
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255, 255, 255, .45);
  letter-spacing: .1em;
  z-index: 2;
}

/* ---------- 服务体系 ---------- */
.svc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.svc {
  background: #fff;
  padding: 34px 28px 36px;
  transition: background .25s;
}
.svc:hover { background: var(--primary-soft); }
.svc-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  transition: all .25s;
}
.svc:hover .svc-icon { background: var(--primary); color: #fff; }
.svc-icon svg { width: 21px; height: 21px; }
.svc h3 { font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.svc p { font-size: 13.5px; color: var(--gray); line-height: 1.9; }

/* ---------- 资质 ---------- */
.cert-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}
.cert {
  flex: 0 1 auto;
  min-width: 260px;
  padding: 20px 26px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: background-color .2s;
}
.cert:hover { background: var(--primary-soft); }
.cert-ico {
  width: 42px; height: 42px; flex: none;
  border-radius: 8px;
  background: var(--primary-soft);
  color: var(--primary);
  display: grid; place-items: center;
}
.cert-ico svg { width: 20px; height: 20px; }
.cert b { display: block; font-size: 14px; color: var(--ink); font-weight: 600; line-height: 1.4; }
.cert span { font-size: 12px; color: var(--gray-lt); }
@media (max-width: 700px) {
  .cert { flex: 1 1 100%; min-width: 0; }
}

/* ---------- 询价 CTA ---------- */
.cta {
  position: relative;
  overflow: hidden;
  background: linear-gradient(120deg, #061530 0%, #0A2450 55%, #0B4EA2 100%);
  color: #fff;
  padding: 80px 0;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, .08) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(90deg, #000, transparent 70%);
  -webkit-mask-image: linear-gradient(90deg, #000, transparent 70%);
}
.cta .container { position: relative; display: grid; grid-template-columns: 1fr .88fr; gap: 64px; align-items: center; }
.cta h2 { font-size: 32px; font-weight: 700; line-height: 1.4; letter-spacing: -.01em; }
.cta p { margin-top: 14px; font-size: 14.5px; color: rgba(255, 255, 255, .68); line-height: 1.9; }
.cta-list { margin-top: 26px; display: flex; flex-direction: column; gap: 10px; }
.cta-list li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, .82); }
.cta-list svg { width: 16px; height: 16px; color: var(--accent); flex: none; }

.form-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  color: var(--ink);
  box-shadow: 0 30px 70px -30px rgba(0, 0, 0, .6);
}
.form-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.form-card > p { font-size: 13px; color: var(--gray); margin-bottom: 22px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.field { position: relative; }
.field input, .field textarea, .field select {
  width: 100%;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 14px;
  font-size: 14px;
  color: var(--ink);
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}
.field textarea { height: 88px; padding: 12px 14px; resize: vertical; line-height: 1.7; }
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(11, 78, 162, .1);
}
.field input::placeholder, .field textarea::placeholder { color: var(--gray-lt); }
.form-card .btn { width: 100%; margin-top: 6px; }
.form-tip { font-size: 12px; color: var(--gray-lt); text-align: center; margin-top: 12px; }

/* ---------- 页脚 ---------- */
.footer { background: #04101F; color: rgba(255, 255, 255, .6); padding: 66px 0 0; font-size: 13.5px; }
.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 56px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(255, 255, 255, .09);
}
.footer-brand img { height: 56px; filter: brightness(0) invert(1); opacity: .95; margin-bottom: 22px; }
.footer-brand p { line-height: 2; max-width: 320px; }
.footer-social { display: flex; gap: 10px; margin-top: 22px; }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, .14);
  display: grid; place-items: center;
  transition: all .2s;
}
.footer-social a:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.footer-social svg { width: 16px; height: 16px; }

.footer h4 {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: .06em;
}
.footer-links li { margin-bottom: 11px; }
.footer-links a { transition: color .18s; }
.footer-links a:hover { color: var(--accent); }

.footer-contact li { display: flex; gap: 10px; margin-bottom: 14px; line-height: 1.75; }
.footer-contact svg { width: 15px; height: 15px; flex: none; margin-top: 5px; color: var(--accent); opacity: .9; }
.footer-contact b { color: #fff; font-family: var(--mono); font-size: 17px; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  font-size: 12.5px;
  color: rgba(255, 255, 255, .38);
  flex-wrap: wrap;
}
.footer-bottom a:hover { color: rgba(255, 255, 255, .7); }

/* ---------- 内页 ---------- */
.page-hero {
  position: relative;
  background: linear-gradient(140deg, #04101F, #0A2450 60%, #0B4EA2);
  color: #fff;
  padding: 66px 0 60px;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(circle at 78% 30%, #000, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 78% 30%, #000, transparent 72%);
}
.page-hero .container { position: relative; }
.page-hero h1 { font-size: 36px; font-weight: 700; letter-spacing: -.01em; }
.page-hero p { margin-top: 12px; font-size: 14.5px; color: rgba(255, 255, 255, .65); max-width: 640px; line-height: 1.9; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: rgba(255, 255, 255, .5); margin-bottom: 18px; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb svg { width: 10px; height: 10px; opacity: .5; }

.side-nav { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.side-nav h3 {
  background: var(--primary);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  padding: 18px 22px;
  letter-spacing: .04em;
}
.side-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 22px;
  font-size: 14px;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line-2);
  transition: all .18s;
}
.side-nav a:last-child { border-bottom: none; }
.side-nav a svg { width: 12px; height: 12px; opacity: .35; }
.side-nav a:hover, .side-nav a.is-active { background: var(--primary-soft); color: var(--primary); padding-left: 26px; }

/* 二级产品分类侧栏：大类可展开看型号系列（纯 CSS 手风琴，不引脚本） */
.side-nav .sn-cat { border-bottom: 1px solid var(--line-2); }
.side-nav .sn-cat:last-child { border-bottom: none; }
.side-nav .sn-cat > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  list-style: none;
  padding: 0;
}
.side-nav .sn-cat > summary::-webkit-details-marker { display: none; }
.side-nav a.sn-cat-link {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  padding: 15px 22px;
  font-size: 14px;
  color: var(--ink-2);
  border-bottom: none;
  transition: all .18s;
}
.side-nav a.sn-cat-link:hover,
.side-nav a.sn-cat-link.is-active {
  background: var(--primary-soft);
  color: var(--primary);
  padding-left: 26px;
}
.side-nav .sn-chev {
  flex: none;
  width: 12px;
  height: 12px;
  margin-right: 18px;
  opacity: .35;
  transition: transform .2s ease;
}
.side-nav .sn-cat.is-open > summary .sn-chev { transform: rotate(90deg); opacity: .6; }
.side-nav .sn-series {
  display: flex;
  flex-direction: column;
  padding: 4px 0 10px;
  background: #f7f8fa;
}
.side-nav a.sn-series-link {
  padding: 9px 22px 9px 42px;
  font-size: 13px;
  line-height: 1.5;
  color: #6b7280;
  border-bottom: none;
  transition: all .15s;
}
.side-nav a.sn-series-link:hover { background: var(--primary-soft); color: var(--primary); }
.side-nav a.sn-series-link.is-active {
  color: var(--primary);
  font-weight: 600;
  background: var(--primary-soft);
}

/* 产品列表页 */
.cat-block { margin-bottom: 64px; }
.cat-block-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 30px;
}
.cat-block-head h2 { font-size: 24px; font-weight: 700; color: var(--ink); }
.cat-block-head span { font-size: 12px; color: var(--gray-lt); letter-spacing: .1em; text-transform: uppercase; }

/* 详情页 */
.pd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.pd-media {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  display: grid;
  place-items: center;
  padding: 40px;
  aspect-ratio: 1 / 1;
}
.pd-media img { max-height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.pd-info h1 { font-size: 30px; font-weight: 700; color: var(--ink); line-height: 1.35; }
.pd-en { font-size: 12px; color: var(--gray-lt); letter-spacing: .12em; text-transform: uppercase; margin-top: 6px; }
.pd-desc { margin-top: 22px; font-size: 15px; color: var(--ink-2); line-height: 2; }
.pd-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.pd-tags a {
  font-size: 13px;
  padding: 7px 16px;
  border: 1px solid var(--line);
  border-radius: 100px;
  color: var(--ink-2);
  transition: all .2s;
}
.pd-tags a:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.pd-actions { display: flex; gap: 12px; margin-top: 34px; }

/* 表格 */
.spec-table { width: 100%; border-collapse: collapse; margin-top: 24px; font-size: 14px; }
.spec-table th, .spec-table td { border: 1px solid var(--line); padding: 13px 16px; text-align: left; }
.spec-table th { background: var(--bg-soft); font-weight: 600; color: var(--ink); width: 180px; }
.spec-table td { color: var(--ink-2); }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .nav .container { gap: 24px; }
  .nav-link { padding: 0 11px; font-size: 14.5px; }
  .hero .container { grid-template-columns: 1fr; gap: 24px; min-height: auto; padding-top: 30px; padding-bottom: 44px; }
  .hero-stage { margin: 0 auto; max-width: 380px; }
  .about-grid { grid-template-columns: 1fr; gap: 56px; }
  .cta .container { grid-template-columns: 1fr; gap: 40px; }
  .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .apps-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 40px; }
  .strengths .container { grid-template-columns: repeat(2, 1fr); }
  .strength:nth-child(2) { border-right: none; }
  .pd-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 860px) {
  .topbar-left span:nth-child(2) { display: none; }
  .topbar-right span { display: none; }
  .topbar { font-size: 12px; }
  .nav-menu, .nav-tel { display: none; }
  /* 操作区整体推到最右，logo 独占左侧；「导航」两字横排放在汉堡图标右边 */
  .nav-actions { margin-left: auto; gap: 10px; }
  .nav .btn { height: 40px; padding: 0 14px; font-size: 13px; }
  .nav-toggle {
    display: inline-flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 40px;
    width: auto;
    padding: 0 11px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
    color: var(--ink-2);
    font-family: inherit;
    cursor: pointer;
  }
  .nav-toggle svg { width: 18px; height: 18px; flex: none; }
  .nav-toggle-label {
    font-size: 13px;
    line-height: 1;
    font-weight: 600;
    letter-spacing: .02em;
    white-space: nowrap;
  }
  .nav .container { height: 64px; gap: 12px; }
  .brand img { height: 32px; }
  .nav.is-open .nav-menu {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 8px 20px 20px;
    gap: 0;
    box-shadow: var(--shadow-lg);
  }
  .nav.is-open .nav-link { height: 50px; border-bottom: 1px solid var(--line-2); }
  .nav.is-open .mega { display: none; }
  .section { padding: 64px 0; }
  h2.section-title { font-size: 26px; }
  .hero-eyebrow { margin-bottom: 12px; font-size: 11.5px; padding: 6px 12px; }
  .hero h1 { font-size: 25px; line-height: 1.18; letter-spacing: -.01em; }
  /* 长主标题在小屏靠字号与行高撑住分量，避免两行都显单薄 */
  .hero h1 br { display: none; }
  .hero h1 em { display: block; }
  .hero-sub { margin-top: 10px; font-size: 13.5px; line-height: 1.6; }
  .hero-factory { margin-top: 10px; gap: 6px 8px; }
  .hero-cta { margin-top: 14px; }
  .hero-cta .btn { padding: 11px 18px; font-size: 13.5px; }
  .hero-stats { flex-wrap: wrap; gap: 14px 0; margin-top: 16px; padding-top: 12px; }
  .hero-stats div { padding-right: 18px; margin-right: 18px; }
  .hero-stats b { font-size: 24px; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .svc-grid, .cert-strip { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .about-facts { grid-template-columns: 1fr; }
  .strengths .container { grid-template-columns: 1fr; }
  .strength { padding: 26px 0; border-right: none; border-bottom: 1px solid var(--line-2); }
  .strength:not(:first-child) { padding-left: 0; }
  .footer-main { grid-template-columns: 1fr; gap: 36px; padding-bottom: 36px; }
  .about-media::before { display: none; }
  .about-badge { right: 12px; bottom: 12px; padding: 14px 18px; }
  .stage-chip { display: none; }
  /* 品类环恢复：整体缩放到屏幕内，18 个标签始终可见、可点选 */
  .hero-stage { max-width: 300px; transform: scale(1); }
  .pump-ring { display: block; pointer-events: auto; }
  .ring-item { font-size: 15px; padding: 6px 10px; }
  .pump-ring .ring-item,
  .hero-stage.is-open .pump-ring .ring-item {
    opacity: 1;
    transform: translate(-50%, -50%) translate(var(--x, 0), var(--y, 0)) scale(1);
  }
  .hero-stage .pump-ring .ring-item.is-hot,
  .hero-stage .pump-ring .ring-item:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    transform: translate(-50%, -50%) translate(var(--x, 0), var(--y, 0)) scale(1.16);
  }
  /* 外围虚线装饰环比主圆大 7%，小屏会顶到屏幕两边被裁成弧线，继续隐藏 */
  .stage-ring { display: none; }
  .hero-stage.is-open .stage-img { width: 82%; }
}

@media (max-width: 560px) {
  .container { padding: 0 18px; }
  .prod-grid { grid-template-columns: 1fr; }
  .apps-grid { grid-template-columns: 1fr; }
  .hero-stage { max-width: 250px; }
  .hero h1 { font-size: 23px; }
  .hero-sub { font-size: 13px; line-height: 1.58; }
  .hero-eyebrow { font-size: 11px; padding: 5px 11px; }
  .hero-stats b { font-size: 22px; }
  .hero-stats div { padding-right: 14px; margin-right: 14px; }
  .page-hero h1 { font-size: 26px; }
  .cta h2 { font-size: 24px; }
}

@media (max-width: 480px) {
  .hero .container { padding-top: 22px; gap: 20px; }
  .hero-eyebrow { margin-bottom: 10px; }
  .hero h1 { font-size: 21px; line-height: 1.15; }
  .hero-sub { font-size: 12.5px; margin-top: 8px; }
  .hero-factory { margin-top: 8px; gap: 5px 7px; }
  .hero-cta { margin-top: 12px; }
  .hero-stats { margin-top: 14px; padding-top: 10px; gap: 12px 0; }
  .hero-stats b { font-size: 20px; }
  .hero-stage { max-width: 225px; }
  .ring-item { font-size: 14px; padding: 5px 9px; }
}

/* 窄屏（≤380px）再收一轮，保证 logo + 报价 + ☰导航 不挤出横向滚动 */
@media (max-width: 380px) {
  .container { padding: 0 14px; }
  .nav .container { gap: 8px; }
  .nav-actions { gap: 6px; }
  .brand img { height: 28px; }
  .nav .btn { padding: 0 11px; font-size: 12.5px; }
  .nav-toggle { padding: 0 8px; gap: 4px; }
  .nav-toggle-label { font-size: 12px; }
}

/* ---------- 产品目录页 ---------- */
.catalog-layout { display: grid; grid-template-columns: 244px 1fr; gap: 48px; align-items: start; }
.catalog-side { position: sticky; top: 96px; }
.side-cta {
  margin-top: 20px;
  background: linear-gradient(150deg, #0A2450, #0B4EA2);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 24px 22px;
}
.side-cta b { display: block; font-size: 15px; font-weight: 600; line-height: 1.5; }
.side-cta p { font-size: 13px; color: rgba(255, 255, 255, .68); line-height: 1.8; margin: 8px 0 16px; }
.side-cta .btn { width: 100%; height: 42px; font-size: 14px; }

.cat-desc { font-size: 14px; color: var(--gray); margin: -14px 0 26px; line-height: 1.9; }
.prod-grid--3 { grid-template-columns: repeat(3, 1fr); }
.prod-desc { font-size: 13px; color: var(--gray); line-height: 1.8; margin-top: 10px; min-height: 48px; }
.prod-card h3 { margin-top: 0; }

/* ---------- 详情页 ---------- */
.pd-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 56px; align-items: start; }
.pd-main, .pd-aside { min-width: 0; }
.pd-aside .side-nav { margin-bottom: 20px; }
.pd-section { margin-top: 56px; }
.pd-section h2 {
  font-size: 22px; font-weight: 700; color: var(--ink);
  padding-bottom: 14px; border-bottom: 2px solid var(--ink); margin-bottom: 22px;
}
.pd-section p { font-size: 15px; line-height: 2; color: var(--ink-2); margin-bottom: 14px; }
.param-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.param-table th, .param-table td { border: 1px solid var(--line); padding: 14px 18px; text-align: left; vertical-align: top; }
.param-table th { background: var(--bg-soft); color: var(--ink); font-weight: 600; width: 150px; }
.param-table td { color: var(--ink-2); line-height: 1.8; }
.rel-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

/* ---------- 关于页 ---------- */
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.stat-row div { background: #fff; padding: 30px 26px; }
.stat-row b { display: block; font-family: var(--mono); font-size: 34px; color: var(--primary); line-height: 1.1; }
.stat-row b i { font-style: normal; font-size: 15px; margin-left: 2px; color: var(--accent); }
.stat-row span { font-size: 13px; color: var(--gray); }
.stat-row--3 { grid-template-columns: repeat(3, 1fr); }

.photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.photo-grid img { width: 100%; height: 220px; object-fit: cover; border-radius: var(--radius-lg); }
.photo-grid img:first-child { grid-column: span 2; height: 100%; }

.qual-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.qual-item {
  display: flex; align-items: flex-start; gap: 14px;
  border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 22px;
}
.qual-item svg { width: 22px; height: 22px; color: var(--primary); flex: none; margin-top: 3px; }
.qual-item b { display: block; font-size: 15px; color: var(--ink); font-weight: 600; }
.qual-item span { font-size: 13px; color: var(--gray); }

/* ---------- 联系页 ---------- */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact-item { display: flex; gap: 16px; padding: 24px 0; border-bottom: 1px solid var(--line-2); }
.contact-item:first-child { padding-top: 0; }
.contact-item .ci { width: 46px; height: 46px; border-radius: 10px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; flex: none; }
.contact-item .ci svg { width: 21px; height: 21px; }
.contact-item small { font-size: 12px; color: var(--gray-lt); letter-spacing: .06em; display: block; }
.contact-item b { font-size: 17px; color: var(--ink); font-weight: 600; line-height: 1.5; }
.contact-item p { font-size: 14px; color: var(--ink-2); line-height: 1.8; }
.contact-item .tel { font-family: var(--mono); font-size: 24px; color: var(--primary); }

/* 联系电话列表：总机 + 部门直线 */
.tel-list { display: flex; flex-direction: column; gap: 2px; margin-top: 4px; }
.tel-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 7px 0;
  text-decoration: none;
  border-radius: 6px;
  transition: background .18s;
}
.tel-row + .tel-row { border-top: 1px dashed var(--line-2); }
.tel-row .tel { flex: none; font-size: 19px; }
.tel-row span {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink-2);
}
.tel-row:hover .tel { color: #0A2450; }

@media (max-width: 560px) {
  .tel-row { flex-direction: column; align-items: flex-start; gap: 2px; }
  .tel-row .tel { font-size: 17.5px; }
  .tel-row span { font-size: 12.5px; }
}

.map-box {
  margin-top: 44px; border: 1px solid var(--line); border-radius: var(--radius-lg);
  height: 320px; overflow: hidden; position: relative;
  background:
    radial-gradient(circle at 30% 40%, rgba(11,78,162,.06), transparent 60%),
    repeating-linear-gradient(0deg, var(--line-2) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(90deg, var(--line-2) 0 1px, transparent 1px 40px),
    #FBFCFE;
  display: grid; place-items: center; text-align: center;
}
.map-box .pin { color: var(--primary); }
.map-box .pin svg { width: 34px; height: 34px; }
.map-box p { font-size: 13.5px; color: var(--gray); margin-top: 10px; }
.map-box b { display: block; font-size: 15px; color: var(--ink); margin-bottom: 4px; }

@media (max-width: 1100px) {
  .catalog-layout { grid-template-columns: 1fr; gap: 32px; }
  .catalog-side { position: static; }
  .prod-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .pd-layout { grid-template-columns: minmax(0, 1fr); }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .rel-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .prod-grid--3 { grid-template-columns: 1fr; }
  .photo-grid { grid-template-columns: 1fr; }
  .photo-grid img:first-child { grid-column: span 1; height: 220px; }
  .qual-list { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr; }
}

/* 消防类下架后产品网格为 18 项，选型卡片跨列补齐末行 */
.prod-cell--cta { grid-column: span 2; }
@media (max-width: 1100px) { .prod-cell--cta { grid-column: span 3; } }
@media (max-width: 860px)  { .prod-cell--cta { grid-column: span 2; } }
@media (max-width: 560px)  { .prod-cell--cta { grid-column: span 1; } }

/* 资质为单数项时，最后一项跨两列，避免右下留空 */
.qual-list > .qual-item:last-child:nth-child(odd) { grid-column: span 2; }
@media (max-width: 860px) {
  .qual-list > .qual-item:last-child:nth-child(odd) { grid-column: span 1; }
}

/* ==========================================================================
   产品品类页（2026-11 新增：型号层 + 性能参数表）
   ========================================================================== */

/* 关键参数速览：客户第一眼判断能不能用 */
.spec-lead {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 30px 0 4px;
}
.spec-lead div {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #fff, var(--bg-soft));
}
.spec-lead small {
  display: block;
  font-size: 12px;
  color: var(--gray);
  letter-spacing: .04em;
  margin-bottom: 8px;
}
.spec-lead b {
  font-family: var(--mono);
  font-size: 21px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: .01em;
}
.spec-lead b i { font-style: normal; font-size: 12px; color: var(--gray); font-weight: 500; margin-left: 3px; }

/* 型号系列区块 */
.series-block { margin-top: 46px; }
.series-block:first-of-type { margin-top: 34px; }
.series-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--primary);
  margin-bottom: 22px;
}
.series-head h3 { font-size: 19px; font-weight: 700; color: var(--ink); letter-spacing: .01em; }
.series-head span { font-size: 13px; color: var(--gray); }
.series-head .series-tag {
  font-size: 11.5px;
  padding: 3px 10px;
  border-radius: 100px;
  background: rgba(245, 136, 18, .12);
  color: #B86400;
  font-weight: 600;
  white-space: nowrap;
}

/* 型号命名规则 */
.model-code {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 16px 18px;
  background: var(--bg-soft);
  border-radius: var(--radius-lg);
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.9;
}
.model-code code {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: .04em;
}
.model-code em { font-style: normal; color: var(--gray-lt); }

/* 性能参数表 */
.spec-wrap {
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  white-space: nowrap;
}
.spec-table thead th {
  position: sticky;
  top: 0;
  background: var(--bg-soft);
  color: var(--ink);
  font-weight: 600;
  font-size: 12.5px;
  letter-spacing: .02em;
  padding: 13px 14px;
  text-align: center;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.spec-table thead th small {
  display: block;
  font-weight: 400;
  font-size: 11px;
  color: var(--gray-lt);
  margin-top: 3px;
}
.spec-table tbody td {
  padding: 12px 14px;
  text-align: center;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line-2);
}
.spec-table tbody tr:nth-child(even) { background: #FAFBFD; }
.spec-table tbody tr:hover { background: var(--primary-soft); }
.spec-table tbody tr:hover td { color: var(--ink); }
.spec-table td:first-child,
.spec-table thead th:first-child {
  font-family: var(--mono);
  font-weight: 600;
  color: var(--primary);
  text-align: left;
  padding-left: 18px;
  position: sticky;
  left: 0;
  background: inherit;
  z-index: 1;
}
.spec-table thead th:first-child { background: var(--bg-soft); }
.spec-table tbody tr:nth-child(even) td:first-child { background: #FAFBFD; }
.spec-table tbody tr:nth-child(odd) td:first-child { background: #fff; }
.spec-table tbody tr:hover td:first-child { background: var(--primary-soft); }
.spec-table .dim { color: var(--gray-lt); }
.spec-note {
  margin-top: 12px;
  font-size: 12.5px;
  color: var(--gray);
  line-height: 1.9;
}

/* 可折叠的次级表（安装尺寸等） */
.spec-fold {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.spec-fold summary {
  cursor: pointer;
  list-style: none;
  padding: 14px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  gap: 8px;
}
.spec-fold summary::-webkit-details-marker { display: none; }
.spec-fold summary::before {
  content: "+";
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1;
  color: var(--primary);
}
.spec-fold[open] summary::before { content: "−"; }
.spec-fold .spec-wrap { margin-top: 0; border: 0; border-radius: 0; }

/* 选型提示条 */
.pick-tip {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 20px;
  margin-top: 26px;
  border-left: 3px solid var(--accent);
  background: linear-gradient(90deg, rgba(245, 136, 18, .07), rgba(245, 136, 18, 0));
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.85;
}
.pick-tip b { color: var(--ink); }

@media (max-width: 860px) {
  .spec-lead { grid-template-columns: repeat(2, 1fr); }
  .spec-lead b { font-size: 18px; }
  .series-head { flex-wrap: wrap; gap: 8px; }
  .spec-table { font-size: 12.5px; }
  .spec-table thead th, .spec-table tbody td { padding: 10px 11px; }
}

/* ==========================================================================
   工程师选型入口（2026-11 新增）
   ========================================================================== */
.eng-cta {
  margin-top: 40px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 32px;
  padding: 30px 32px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(245, 136, 18, .14), transparent 58%),
    linear-gradient(150deg, #0A2450, #0C3E7D 62%, #0B4EA2);
  color: #fff;
  overflow: hidden;
}
.eng-kicker {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: .14em;
  padding: 4px 10px;
  border-radius: 100px;
  background: rgba(245, 136, 18, .18);
  color: #FFC078;
  margin-bottom: 14px;
}
.eng-main > b {
  display: block;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .01em;
  margin-bottom: 10px;
}
.eng-main > p {
  font-size: 14px;
  line-height: 1.95;
  color: rgba(255, 255, 255, .74);
  max-width: 620px;
}
.eng-steps {
  list-style: none;
  margin-top: 20px;
  display: grid;
  gap: 10px;
}
.eng-steps li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, .86);
  line-height: 1.75;
}
.eng-steps em {
  flex: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .22);
  font-style: normal;
  font-family: var(--mono);
  font-size: 11.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFC078;
  margin-top: 2px;
}
.eng-act {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  padding-left: 30px;
  border-left: 1px solid rgba(255, 255, 255, .14);
}
.eng-act .btn { width: 100%; height: 46px; font-size: 14.5px; }
.eng-tel {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  border-radius: 100px;
  border: 1px solid rgba(255, 255, 255, .26);
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  transition: .2s ease;
}
.eng-tel svg { width: 15px; height: 15px; opacity: .8; }
.eng-tel:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .5); }
.eng-act small {
  font-size: 11.5px;
  color: rgba(255, 255, 255, .5);
  text-align: center;
  line-height: 1.7;
}

@media (max-width: 860px) {
  .eng-cta { grid-template-columns: minmax(0, 1fr); gap: 24px; padding: 26px 22px; }
  .eng-main > b { font-size: 19px; }
  .eng-act { padding-left: 0; border-left: 0; border-top: 1px solid rgba(255, 255, 255, .14); padding-top: 22px; }
}

/* -------------------------------------------------- 系列名录（轻量品类页） */
.series-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.series-item {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #fff, var(--bg-soft));
  transition: .22s ease;
}
.series-item:hover {
  border-color: rgba(11, 78, 162, .32);
  box-shadow: 0 16px 32px -22px rgba(10, 36, 80, .5);
  transform: translateY(-2px);
}
.series-item b {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 8px;
}
.series-item p { font-size: 13.5px; color: var(--gray); line-height: 1.85; }

@media (max-width: 860px) {
  .series-list { grid-template-columns: minmax(0, 1fr); }
}

/* -------------------------------------------------- 选型要点列表 */
.pick-list { list-style: none; display: grid; gap: 12px; }
.pick-list li {
  position: relative;
  padding: 16px 20px 16px 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.85;
}
.pick-list li::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 24px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  transform: rotate(45deg);
}

/* 系列说明段落 */
.series-desc {
  font-size: 15px;
  line-height: 2;
  color: var(--ink-2);
  margin-bottom: 20px;
}

/* ==========================================================================
   小类型（型号系列）层：产品中心 → 大类 → 小类型（2026-11 新增）
   ========================================================================== */

/* 大类页：产品系列 纵向列表（图左 + 内容右） */
.type-block { margin-top: 44px; }
.type-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--primary);
  margin-bottom: 24px;
}
.type-head h2 { font-size: 21px; font-weight: 700; color: var(--ink); letter-spacing: .01em; }
.type-head span { font-size: 13px; color: var(--gray); }

.type-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.type-card {
  display: grid;
  grid-template-columns: 156px 1fr;
  grid-template-areas:
    "thumb top"
    "thumb en"
    "thumb model"
    "thumb desc"
    "thumb foot";
  column-gap: 22px;
  row-gap: 6px;
  align-items: start;
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  position: relative;
  overflow: hidden;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.type-card::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .28s ease;
}
.type-card::before {
  content: "";
  grid-area: thumb;
  align-self: stretch;
  min-height: 132px;
  border-radius: 10px;
  background:
    var(--bg-soft)
    url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2064%2064'%3E%3Cg%20fill='none'%20stroke='%23114a8c'%20stroke-width='3'%3E%3Ccircle%20cx='32'%20cy='32'%20r='20'/%3E%3Cpath%20d='M32%2012v40M12%2032h40'/%3E%3Cpath%20d='M20%2020l24%2024M44%2020L20%2044'/%3E%3C/g%3E%3C/svg%3E") center / 56% no-repeat;
}
.type-card:hover {
  transform: translateY(-2px);
  border-color: rgba(11, 78, 162, .3);
  box-shadow: 0 18px 38px -24px rgba(10, 36, 80, .55);
}
.type-card:hover::after { transform: scaleX(1); }

.type-card-top {
  grid-area: top;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}
.type-card-top b {
  font-size: 16px;
  padding-right: 62px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
  letter-spacing: .01em;
}
.type-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 1;
  font-size: 10.5px;
  font-weight: 600;
  line-height: 1.6;
  padding: 1px 8px;
  border-radius: 100px;
  background: rgba(245, 136, 18, .14);
  color: #B86400;
  white-space: nowrap;
}
.type-en { grid-area: en; font-family: var(--mono); font-size: 10.5px; letter-spacing: .04em; color: var(--gray-lt); text-transform: uppercase; margin-top: -2px; }
.type-model { grid-area: model; font-family: var(--mono); font-size: 12px; color: var(--primary); background: var(--bg-soft); border-radius: 6px; padding: 7px 10px; line-height: 1.6; letter-spacing: .01em; }
.type-desc {
  grid-area: desc;
  font-size: 13px;
  line-height: 1.85;
  color: var(--gray);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.type-foot {
  grid-area: foot;
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.type-meta { flex: 1; min-width: 0; font-size: 11.5px; color: var(--gray-lt); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.type-more { flex: none; font-size: 12.5px; font-weight: 600; color: var(--primary); white-space: nowrap; transition: transform .2s ease; }
.type-card:hover .type-more { transform: translateX(3px); }

/* 小类型页内的「同大类其他系列」紧凑卡（保持卡片网格，不含缩略图） */
.type-grid--sm { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.type-card--sm { display: block; padding: 16px 16px 13px; gap: 6px; }
.type-card--sm::before { display: none; }
.type-card--sm .type-card-top { grid-area: auto; }
.type-card--sm .type-card-top b { font-size: 13.5px; padding-right: 0; }
.type-card--sm .type-model { font-size: 11px; padding: 5px 8px; }
.type-card--sm .type-more { font-size: 11.5px; }

@media (max-width: 760px) {
  .type-card { grid-template-columns: 1fr; grid-template-areas: "thumb" "top" "en" "model" "desc" "foot"; }
  .type-card::before { min-height: 150px; }
}

/* 小类型页顶部：结构 / 型号 信息条 */
.type-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}
.type-facts > div {
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  background: linear-gradient(90deg, rgba(11, 78, 162, .05), rgba(11, 78, 162, 0));
}
.type-facts small {
  display: block;
  font-size: 11px;
  color: var(--gray);
  letter-spacing: .04em;
  margin-bottom: 5px;
}
.type-facts b { font-size: 13.5px; font-weight: 600; color: var(--ink); line-height: 1.6; }
.type-facts b.is-mono { font-family: var(--mono); font-size: 13px; color: var(--primary); letter-spacing: .01em; }

/* 面包屑上的品类小字 */
.pd-cat { font-size: 12px; color: var(--gray-lt); letter-spacing: .05em; margin-bottom: 10px; }
.pd-cat a { color: var(--primary); border-bottom: 1px solid rgba(11, 78, 162, .25); }
.pd-cat a:hover { border-color: var(--primary); }

/* 适用工况 */
.app-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.app-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 18px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #fff, var(--bg-soft));
}
.app-item span {
  flex: none;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--primary-soft, rgba(11, 78, 162, .08));
  color: var(--primary);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}
.app-item p { font-size: 13.5px; line-height: 1.8; color: var(--ink-2); }

/* 无样本参数表时的引导块 */
.spec-ask {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px 26px;
  margin-top: 4px;
  border: 1px solid rgba(245, 136, 18, .3);
  border-radius: var(--radius-lg);
  background: linear-gradient(100deg, rgba(245, 136, 18, .08), rgba(245, 136, 18, .01) 62%);
}
.spec-ask b { display: block; font-size: 15px; color: var(--ink); margin-bottom: 7px; }
.spec-ask p { font-size: 13.5px; line-height: 1.85; color: var(--gray); max-width: 620px; }
.spec-ask .btn { flex: none; }

@media (max-width: 1080px) {
  .type-grid--sm { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .app-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .type-grid--sm, .app-grid { grid-template-columns: minmax(0, 1fr); }
  .type-facts { grid-template-columns: minmax(0, 1fr); }
  .type-head { flex-wrap: wrap; gap: 6px; }
  .type-head h2 { font-size: 18px; }
  .spec-ask { flex-direction: column; align-items: flex-start; gap: 16px; }
  .spec-ask .btn { width: 100%; }
  .type-desc { -webkit-line-clamp: 4; }
}

/* ==========================================================================
   工厂视角板块（2026-11 定位调整新增）
   ========================================================================== */

/* ---------- 首屏定位条 ---------- */
.hero-factory {
  display: flex; flex-wrap: wrap; gap: 8px 10px; margin: 22px 0 0;
}
.hero-factory span {
  font-size: 12.5px; font-weight: 600; color: #fff;
  padding: 6px 12px; border-radius: 100px;
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .22);
  white-space: nowrap;
}
.hero-factory span i {
  font-style: normal; color: var(--accent); margin-right: 6px; font-family: var(--mono);
}

/* ---------- 制造工序 ---------- */
.proc-grid {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden;
}
.proc {
  background: #fff; padding: 28px 22px 26px; position: relative;
  transition: background-color .2s;
}
.proc:hover { background: #FBFCFE; }
.proc-num {
  font-family: var(--mono); font-size: 13px; font-weight: 700; color: var(--accent);
  letter-spacing: .06em;
}
.proc-en {
  font-family: var(--mono); font-size: 10px; letter-spacing: .18em;
  color: var(--gray-lt); margin: 4px 0 14px;
}
.proc h3 { font-size: 16px; line-height: 1.4; color: var(--ink); margin-bottom: 10px; }
.proc p { font-size: 13px; line-height: 1.85; color: var(--gray); }
.proc ul { list-style: none; margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line); }
.proc li {
  font-size: 12px; color: var(--ink-2); line-height: 1.7; padding-left: 13px; position: relative;
}
.proc li::before {
  content: ""; position: absolute; left: 0; top: 9px; width: 5px; height: 5px;
  border-radius: 50%; background: var(--primary); opacity: .5;
}

/* ---------- 工厂数字（待核定项自动隐藏） ---------- */
.fact-row {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px;
  background: var(--line); border: 1px solid var(--line); margin-top: 40px;
}
.fact-row div { background: #fff; padding: 26px 24px; }
.fact-row b {
  display: block; font-family: var(--mono); font-size: 30px; color: var(--primary);
  line-height: 1.15;
}
.fact-row b i { font-style: normal; font-size: 13px; margin-left: 3px; }
.fact-row span { font-size: 12.5px; color: var(--gray); }
.fact-row div.is-todo b { font-size: 20px; color: var(--gray-lt); }

/* ---------- 产业带 ---------- */
.belt {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center;
}
.belt p { font-size: 14.5px; line-height: 1.95; color: var(--ink-2); margin-bottom: 16px; }
.belt-points { list-style: none; margin-top: 26px; }
.belt-points li {
  display: grid; grid-template-columns: 118px minmax(0, 1fr); gap: 16px;
  padding: 14px 0; border-top: 1px solid var(--line-2);
  font-size: 13.5px; color: var(--gray); line-height: 1.75;
}
.belt-points li:last-child { border-bottom: 1px solid var(--line-2); }
.belt-points b { color: var(--ink); font-weight: 700; }
.belt-media { position: relative; }
.belt-media img { width: 100%; border-radius: var(--radius-lg); display: block; }
.belt-media::after {
  content: ""; position: absolute; inset: 0; border-radius: var(--radius-lg);
  box-shadow: inset 0 0 0 1px rgba(11, 42, 92, .08);
  pointer-events: none;
}

/* ---------- 区域服务 ---------- */
.area-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; margin-top: 36px; }
.area-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 22px 22px 24px;
}
.area-item b {
  display: block; font-size: 15px; color: var(--ink); margin-bottom: 8px;
  padding-left: 12px; position: relative;
}
.area-item b::before {
  content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 3px;
  background: var(--accent); border-radius: 2px;
}
.area-item span { font-size: 13px; color: var(--gray); line-height: 1.75; }

/* ---------- OEM / ODM ---------- */
.oem-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.14); margin-top: 40px; }
.oem-step { background: rgba(255, 255, 255, .04); padding: 26px 24px; }
.oem-step em {
  display: block; font-style: normal; font-family: var(--mono); font-size: 12px;
  color: var(--accent); letter-spacing: .08em; margin-bottom: 10px;
}
.oem-step b { display: block; font-size: 15px; color: #fff; margin-bottom: 8px; }
.oem-step span { font-size: 13px; color: rgba(255, 255, 255, .62); line-height: 1.75; }
.oem-points {
  list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 32px; margin-top: 34px;
}
.oem-points li {
  font-size: 13.5px; color: rgba(255, 255, 255, .78); line-height: 1.7;
  padding-left: 22px; position: relative;
}
.oem-points li::before {
  content: ""; position: absolute; left: 0; top: 7px; width: 11px; height: 6px;
  border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

/* ---------- 车间故事 ---------- */
.story { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 56px; align-items: center; }
.story-media img { width: 100%; border-radius: var(--radius-lg); display: block; }
.story-body p {
  font-size: 14.5px; line-height: 2; color: var(--ink-2); margin-bottom: 18px;
}
.story-body p:last-child { margin-bottom: 0; }
.story-quote {
  margin-top: 26px; padding: 18px 22px; border-left: 3px solid var(--accent);
  background: rgba(245, 136, 18, .05); border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 14px; line-height: 1.9; color: var(--ink);
}

/* ---------- 产品页：制造与检测 ---------- */
.mf-block { margin-top: 44px; }
.mf-block > h2 {
  font-size: 22px; color: var(--ink); margin-bottom: 10px;
}
.mf-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; margin-bottom: 12px;
  padding-bottom: 14px; border-bottom: 1px solid var(--line);
}
.mf-head h2 { font-size: 22px; color: var(--ink); }
.mf-head span { font-size: 12.5px; color: var(--gray-lt); }
.mf-block > p.mf-intro, .mf-block > .mf-intro {
  font-size: 14px; line-height: 1.9; color: var(--gray); margin-bottom: 24px; max-width: 760px;
}
.mf-list { border-top: 1px solid var(--line); margin: 0; }
.mf-item {
  display: grid; grid-template-columns: 148px minmax(0, 1fr); gap: 22px;
  padding: 20px 0; border-bottom: 1px solid var(--line-2);
}
.mf-item dt {
  font-size: 13px; font-weight: 700; color: var(--primary); line-height: 1.6;
}
.mf-item dd { font-size: 13.5px; line-height: 1.9; color: var(--ink-2); margin: 0; }
.mf-item dd b { color: var(--ink); font-weight: 700; }
.mf-note {
  margin-top: 20px; font-size: 12.5px; color: var(--gray-lt); line-height: 1.8; max-width: 760px;
}
.mf-link {
  display: inline-block; margin-top: 12px; font-size: 13px; font-weight: 700;
  color: var(--primary); border-bottom: 1px solid currentColor; padding-bottom: 2px;
}
/* 系列页精简版：3 条要点，字号收一点 */
.mf-block--sm { margin-top: 8px; padding: 26px 28px; background: var(--bg-soft, #F7F8FA); border-radius: var(--radius); }
.mf-block--sm .mf-head { padding-bottom: 10px; margin-bottom: 14px; }
.mf-block--sm .mf-head h2 { font-size: 17px; }
.mf-block--sm .mf-intro { font-size: 13.5px; margin-bottom: 16px; }
.mf-block--sm .mf-item { padding: 13px 0; }
.mf-block--sm .mf-item dt { font-size: 12.5px; }
.mf-block--sm .mf-item dd { font-size: 13px; line-height: 1.8; }
.mf-block--sm .mf-list { border-top: none; }
.mf-links { display: flex; flex-wrap: wrap; gap: 8px 26px; margin-top: 12px; }
.mf-links .mf-link { margin-top: 0; }
.mf-block--sm .mf-link { margin-top: 10px; }
.mf-block--sm .mf-item:last-child { border-bottom: none; }

@media (max-width: 1080px) {
  .proc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fact-row, .area-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .oem-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .belt, .story { grid-template-columns: minmax(0, 1fr); gap: 36px; }
}
@media (max-width: 860px) {
  .proc-grid, .oem-grid, .oem-points { grid-template-columns: minmax(0, 1fr); }
  .fact-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .area-list { grid-template-columns: minmax(0, 1fr); }
  .hero-factory span { font-size: 11.5px; padding: 5px 10px; }
  .mf-item { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .mf-item dt { padding-bottom: 0; }
  .mf-head { display: block; }
  .mf-head span { display: block; margin-top: 6px; }
}

/* ---------- OEM 深色衬色区块 ---------- */
.oem-band {
  position: relative;
  background: linear-gradient(120deg, #061530 0%, #0A2450 58%, #0B4EA2 100%);
  color: #fff;
}
.oem-band::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(100deg, #000, transparent 78%);
  -webkit-mask-image: linear-gradient(100deg, #000, transparent 78%);
  pointer-events: none;
}
.oem-band .container { position: relative; }
.oem-band .eyebrow::before { background: var(--accent); }

/* ---------- 技术资料：视频播放器 ---------- */
.mf-block--tech .mf-intro { margin-top: 4px; }

.vp {
  position: relative; margin: 4px 0 28px;
  border-radius: var(--radius-lg); overflow: hidden;
  background: linear-gradient(135deg, #0A1B33, #071120);
  aspect-ratio: 16 / 9;
  box-shadow: var(--shadow-md);
}
.vp-stage { position: absolute; inset: 0; }
.vp-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: contain; background: #000; z-index: 3;
}
.vp-poster {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: .55; transition: opacity .5s ease, transform .8s ease;
  cursor: pointer;
}
.vp:hover .vp-poster { opacity: .62; transform: scale(1.015); }
.vp.is-playing .vp-poster { opacity: 0; pointer-events: none; }
.vp.is-playing .vp-mask,
.vp.is-playing .vp-play,
.vp.is-playing .vp-empty { opacity: 0; pointer-events: none; }
.vp.is-playing .vp-ctrl { opacity: 1; }

.vp-mask {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(6,21,48,.35) 0%, rgba(6,21,48,.15) 40%, rgba(6,21,48,.82) 100%);
  transition: opacity .35s ease;
}

/* 大播放按钮 */
.vp-play {
  position: absolute; left: 50%; top: 50%; z-index: 4;
  width: 68px; height: 68px; margin: -34px 0 0 -34px;
  border: 0; border-radius: 50%; cursor: pointer;
  background: rgba(255,255,255,.94); color: var(--primary);
  display: grid; place-items: center;
  box-shadow: 0 12px 34px -8px rgba(0,0,0,.55);
  transition: transform .25s ease, background .25s ease, opacity .3s ease;
}
.vp-play svg { width: 26px; height: 26px; margin-left: 3px; }
.vp-play:hover { transform: scale(1.08); background: #fff; }
.vp-play:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.vp.is-nudge .vp-play { animation: vpShake .5s ease; }
@keyframes vpShake {
  0%,100% { transform: translateX(0); } 25% { transform: translateX(-6px); }
  50% { transform: translateX(6px); } 75% { transform: translateX(-3px); }
}

/* 占位说明 */
.vp-empty {
  position: absolute; left: 24px; bottom: 68px; right: 24px; z-index: 2;
  color: #fff; transition: opacity .3s ease;
}
.vp-empty b { display: block; font-size: 15px; margin-bottom: 6px; letter-spacing: .3px; }
.vp-empty p { font-size: 12.5px; line-height: 1.7; color: rgba(255,255,255,.72); max-width: 520px; }
.vp-badge {
  position: absolute; left: 20px; top: 18px; z-index: 4;
  font-size: 11.5px; letter-spacing: .6px; color: #fff;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(245,136,18,.9);
}
.vp-hint {
  position: absolute; right: 20px; top: 18px; z-index: 4;
  font-size: 11.5px; color: rgba(255,255,255,.7);
}

/* 控制条 */
.vp-ctrl {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 5;
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px 12px;
  background: linear-gradient(180deg, transparent, rgba(3,12,26,.88));
  opacity: .92; transition: opacity .25s ease;
}
.vp:hover .vp-ctrl { opacity: 1; }
.vp-btn {
  flex: 0 0 auto; width: 30px; height: 30px; border: 0; cursor: pointer;
  background: transparent; color: #fff; border-radius: 3px;
  display: grid; place-items: center; opacity: .9;
}
.vp-btn svg { width: 17px; height: 17px; }
.vp-btn:hover { opacity: 1; background: rgba(255,255,255,.12); }
.vp-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.vp-btn.is-muted { opacity: .5; }
.vp-time {
  flex: 0 0 auto; font-size: 11.5px; color: rgba(255,255,255,.8);
  font-family: var(--mono); letter-spacing: .3px; min-width: 78px;
}
.vp-bar {
  flex: 1 1 auto; height: 4px; border-radius: 2px; cursor: pointer;
  background: rgba(255,255,255,.22); position: relative;
}
.vp-bar:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.vp-bar-fill {
  position: absolute; left: 0; top: 0; bottom: 0; width: 0;
  background: var(--accent); border-radius: 2px; transition: width .12s linear;
}

/* 小尺寸（系列页） */
.vp--sm { margin: 2px 0 22px; }
.vp--sm .vp-play { width: 54px; height: 54px; margin: -27px 0 0 -27px; }
.vp--sm .vp-play svg { width: 20px; height: 20px; }
.vp--sm .vp-empty { bottom: 60px; left: 18px; right: 18px; }
.vp--sm .vp-empty b { font-size: 13.5px; }
.vp--sm .vp-empty p { font-size: 11.5px; }
.vp--sm .vp-ctrl { gap: 9px; padding: 8px 10px 9px; }
.vp--sm .vp-time { min-width: 68px; font-size: 11px; }
.vp--sm .vp-btn { width: 26px; height: 26px; }
.vp--sm .vp-btn svg { width: 15px; height: 15px; }

@media (max-width: 860px) {
  .vp-empty { bottom: 58px; left: 16px; right: 16px; }
  .vp-empty b { font-size: 13.5px; }
  .vp-empty p { font-size: 11.5px; }
  .vp-play { width: 56px; height: 56px; margin: -28px 0 0 -28px; }
  .vp-play svg { width: 22px; height: 22px; }
  .vp-ctrl { gap: 8px; padding: 8px 10px 10px; }
  .vp-time { min-width: 66px; font-size: 11px; }
  .vp-badge { left: 14px; top: 14px; }
  .vp-hint { right: 14px; top: 14px; font-size: 11px; }
}
@media (max-width: 520px) {
  .vp-empty p { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .vp-poster, .vp-play, .vp-ctrl, .vp-bar-fill { transition: none; }
  .vp:hover .vp-poster { transform: none; }
  .vp.is-nudge .vp-play { animation: none; }
}
/* 占位态：控制条仅作示意，不可操作 */
.vp.is-empty .vp-btn,
.vp.is-empty .vp-bar { opacity: .34; pointer-events: none; }
.vp.is-empty .vp-ctrl { opacity: .9; }

/* ============ 技术资料页 tech.html ============ */
/* 顶部横向分类导航（吸顶，锚点跳转） */
.tc-tabs {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: saturate(1.6) blur(10px);
  border-bottom: 1px solid var(--line-2);
}
.tc-tabs-list {
  display: flex;
  gap: 6px;
  list-style: none;
  overflow-x: auto;
  padding: 12px 0;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.tc-tabs-list::-webkit-scrollbar { display: none; }
.tc-tabs-list li { flex: 0 0 auto; }
.tc-tabs-list a {
  display: block;
  padding: 7px 14px;
  font-size: 14px;
  font-weight: 500;
  color: #4A5568;
  white-space: nowrap;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  transition: color .2s, border-color .2s, background .2s;
}
.tc-tabs-list a:hover {
  color: #0B4EA2;
  border-color: #BBD2EE;
  background: #F5F9FE;
}
.tc-tabs-list li.is-active a {
  color: #fff;
  background: #0B4EA2;
  border-color: #0B4EA2;
}

/* 分类区块 */
.section--tech { padding-top: 48px; }
.tc-blocks { display: flex; flex-direction: column; gap: 44px; }
.tc-block { scroll-margin-top: 92px; }
.tc-block-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 12px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line-2);
  flex-wrap: wrap;
}
.tc-block-tt {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
}
.tc-block-tt em {
  font-style: normal;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .04em;
  color: #9AA4B5;
  text-transform: uppercase;
}
.tc-block-more {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--blue, #0B4EA2);
}
.tc-block-more:hover { text-decoration: underline; }

.tc-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.tc-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color .24s, box-shadow .24s, transform .24s;
}
.tc-card:hover {
  border-color: #C9D6E6;
  box-shadow: 0 10px 28px rgba(10, 36, 80, .09);
  transform: translateY(-2px);
}
.tc-thumb {
  display: block;
  position: relative;
  aspect-ratio: 16 / 10;
  background: #F2F5F9;
  overflow: hidden;
}
.tc-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 18px;
  transition: transform .3s;
}
.tc-card:hover .tc-thumb img { transform: scale(1.04); }
.tc-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  color: #6B7688;
  background: rgba(255, 255, 255, .94);
  border: 1px solid var(--line-2);
  border-radius: 5px;
}
.tc-badge.is-ready { color: #0B4EA2; border-color: #BBD2EE; background: #EEF5FD; }
.tc-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.tc-body h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}
.tc-en {
  font-size: 12.5px;
  color: #8B95A6;
  letter-spacing: .02em;
  margin-bottom: 10px;
}
.tc-blurb {
  font-size: 13.5px;
  line-height: 1.75;
  color: #5A6577;
  margin-bottom: 16px;
  flex: 1;
}
.tc-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--line-2);
  flex-wrap: wrap;
}
.tc-more {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--blue, #0B4EA2);
}
.tc-more:hover { text-decoration: underline; }
.tc-dl {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: #0B4EA2;
  border-radius: 6px;
  transition: background .2s;
}
.tc-dl svg { width: 15px; height: 15px; }
.tc-dl:hover { background: #0A2450; }
.tc-dl.is-off {
  color: #9AA4B5;
  background: #F1F4F8;
  border: 1px solid var(--line-2);
  cursor: not-allowed;
  pointer-events: none;
}
.tc-tip {
  margin-top: 28px;
  font-size: 13px;
  line-height: 1.9;
  color: #8B95A6;
}

/* 视频区 */
.tv-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 32px;
  align-items: start;
}
.tv-side {
  background: #fff;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  padding: 24px;
}
.tv-side h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 14px;
}
.tv-list { list-style: none; }
.tv-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  font-size: 14px;
  color: #4A5568;
  border-bottom: 1px solid var(--line-2);
}
.tv-list li:last-child { border-bottom: none; }
.tv-list b {
  font-size: 11.5px;
  font-weight: 700;
  color: #0B4EA2;
  background: #EEF5FD;
  padding: 2px 7px;
  border-radius: 4px;
}
.tv-note {
  margin: 16px 0 18px;
  font-size: 13px;
  line-height: 1.85;
  color: #8B95A6;
}
.tv-side .btn { width: 100%; text-align: center; }

@media (max-width: 1100px) {
  .tc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tv-wrap { grid-template-columns: minmax(0, 1fr); }
  .tc-tabs-list { gap: 5px; }
  .tc-tabs-list a { padding: 6px 12px; font-size: 13.5px; }
}
@media (max-width: 560px) {
  .tc-grid { grid-template-columns: minmax(0, 1fr); }
  .tc-thumb { aspect-ratio: 16 / 9; }
  .tc-blocks { gap: 36px; }
  .tc-block-tt { font-size: 17.5px; }
  .tc-block-tt em { display: block; margin-top: 2px; }
  .tc-block-head { align-items: flex-start; flex-direction: column; gap: 6px; }
}