:root {
  --navy: #0b2f55;
  --navy-2: #123e6d;
  --red: #c8161d;
  --ink: #1c1c1c;
  --muted: #5c6570;
  --line: #e6e8eb;
  --paper: #f5f6f8;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  font-size: 15px;
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--red); }
.wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.nowrap { white-space: nowrap; }

.preview-bar {
  background: #fff7e8;
  color: #8a5a00;
  text-align: center;
  font-size: 12px;
  padding: 6px 12px;
  border-bottom: 1px solid #f0e0c0;
}
.util { background: #f7f8fa; border-bottom: 1px solid var(--line); font-size: 12px; color: #667; }
.util-in { display: flex; gap: 18px; flex-wrap: wrap; padding: 6px 0; }
.util a { color: #667; }

.site-head {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.head-in {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 20px;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); flex: none; }
.brand img { width: 42px; height: 42px; object-fit: contain; background: #111; border-radius: 4px; }
.brand-name { font-size: 20px; font-weight: 700; letter-spacing: 1px; line-height: 1.15; }
.brand-name small { display: block; font-size: 12px; font-weight: 400; color: var(--muted); letter-spacing: 0; }
.site-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.site-nav > a, .site-nav .top {
  display: block;
  padding: 22px 14px;
  color: var(--ink);
  font-size: 15px;
}
.site-nav .drop > .top::after {
  content: "";
  display: inline-block;
  margin-left: 6px;
  border-width: 5px 4px 0;
  border-style: solid;
  border-color: currentColor transparent transparent;
  transform: translateY(-1px);
  opacity: .55;
}
.drop:hover > .top::after,
.drop:focus-within > .top::after {
  transform: translateY(-1px) rotate(180deg);
  opacity: 1;
}
.site-nav > a[aria-current="page"], .site-nav .top[aria-current="page"] { color: var(--red); font-weight: 700; }
.drop { position: relative; }
.drop:hover .mega, .drop:focus-within .mega { display: grid; }
.mega {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 520px;
  grid-template-columns: 1fr;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 12px 28px rgba(16, 24, 40, .08);
  padding: 8px;
  z-index: 30;
}
.drop.end .mega { left: auto; right: 0; }
.mega.wide {
  width: min(860px, calc(100vw - 48px));
  max-height: 72vh;
  overflow: auto;
  padding: 8px 8px 12px;
}
.mega-cols { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 4px; }
.mega-label {
  margin: 0;
  padding: 8px 12px 2px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 1px;
}
.mega-cols .mega-links { grid-template-columns: 1fr; }
.mega-intro { display: none; }
.mega-links { display: grid; grid-template-columns: 1fr 1fr; }
.mega.narrow .mega-links { grid-template-columns: 1fr; }
.mega-links a {
  display: block;
  padding: 10px 12px;
  color: var(--ink);
  border-radius: 4px;
}
.mega-links a:hover, .mega-links a.cur { background: #f6f8fb; color: var(--red); }
.mega-links b { display: block; font-size: 14px; }
.mega-links span { display: block; color: var(--muted); font-size: 12px; font-weight: 400; line-height: 1.45; margin-top: 2px; }
.head-phone {
  flex: none;
  background: var(--red);
  color: #fff;
  font-weight: 700;
  padding: 8px 14px;
  border-radius: 2px;
  letter-spacing: .3px;
}
.head-phone:hover { color: #fff; background: #a81218; }
.nav-toggle, .nav-btn { display: none; }

.hero-bleed {
  position: relative;
  min-height: 520px;
  color: #fff;
  background: #102033 url("../img/factory-cnc-lg.jpg") center/cover no-repeat;
  display: flex;
  align-items: flex-end;
}
.hero-bleed .veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 16, 28, .88) 0%, rgba(8, 16, 28, .62) 46%, rgba(8, 16, 28, .18) 100%);
}
.hero-bleed .wrap {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 40px));
  max-width: none;
  padding: 88px 0 56px;
}
.hero-bleed h1 { margin: 0 0 12px; font-size: 56px; line-height: 1.05; letter-spacing: 1px; color: #fff; }
.hero-bleed .kicker { color: rgba(255,255,255,.75); letter-spacing: 2px; }
.hero-bleed .lede { color: rgba(255,255,255,.92); font-size: 18px; max-width: 38em; }
.hero-bleed .btn.line { color: #fff; border-color: rgba(255,255,255,.7); background: transparent; }
.hero-bleed .btn.line:hover { color: #fff; border-color: #fff; }
.proof {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.proof div { padding: 22px 12px; text-align: center; }
.proof b { display: block; font-size: 28px; color: var(--navy); letter-spacing: .5px; }
.proof span { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; }
.gallery.wide { grid-template-columns: repeat(4, 1fr); }
.hero-in {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 36px;
  align-items: center;
  padding: 42px 0 36px;
}
.kicker { margin: 0 0 8px; color: var(--red); font-size: 13px; letter-spacing: 1px; }
.hero h1 { margin: 0 0 12px; font-size: 36px; line-height: 1.25; font-weight: 700; }
.lede { margin: 0 0 18px; color: #333; font-size: 16px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.btn {
  display: inline-block;
  background: var(--red);
  color: #fff;
  padding: 10px 18px;
  border-radius: 2px;
  font-weight: 700;
}
.btn:hover { color: #fff; background: #a81218; }
.btn.line { background: #fff; color: var(--navy); border: 1px solid #c5ced8; }
.btn.line:hover { color: var(--red); border-color: var(--red); }
.hero-photo { position: relative; }
.hero-photo img { width: 100%; height: 480px; object-fit: cover; object-position: center 40%; border-radius: 4px; }
.cap {
  position: absolute;
  left: 12px;
  bottom: 12px;
  margin: 0;
  background: rgba(11, 47, 85, .88);
  color: #fff;
  font-size: 12px;
  padding: 4px 8px;
}

.band {
  background: var(--navy);
  color: #fff;
}
.nums {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.nums div { padding: 22px 8px; text-align: center; border-right: 1px solid rgba(255,255,255,.12); }
.nums div:last-child { border-right: 0; }
.nums b { display: block; font-size: 26px; font-weight: 700; }
.nums span { display: block; margin-top: 4px; font-size: 13px; color: #d5deea; }

.sec { padding: 48px 0; }
.sec.alt { background: var(--paper); }
.sec-h { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 18px; }
.sec-h h2 { margin: 0; font-size: 26px; }
.sec-h p { margin: 6px 0 0; color: var(--muted); }
.sec-h a { color: var(--navy); font-size: 14px; white-space: nowrap; }

.pgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.pgrid.libs img, .pgrid.pick img { height: 220px; object-fit: contain; background: #fff; }
.pgrid.hot img { height: 280px; object-fit: contain; background: #f7f8fa; }
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 12px 0 22px; }
.gallery a { display: block; border: 1px solid var(--line); background: #fff; }
.gallery img { width: 100%; height: 210px; object-fit: contain; background: #fff; }
.pcard {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  color: var(--ink);
  display: flex;
  flex-direction: column;
}
.pcard:hover { border-color: #b9c6d6; color: var(--ink); }
.pcard img { width: 100%; height: 180px; object-fit: cover; background: #f3f4f6; }
.pcard div { padding: 12px 14px 14px; }
.pcard h3 { margin: 0 0 4px; font-size: 16px; }
.pcard p { margin: 0; color: var(--muted); font-size: 13px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips a {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 8px 14px;
  border-radius: 2px;
  font-size: 14px;
}
.chips a:hover { border-color: var(--red); color: var(--red); }

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.steps div { background: #fff; border: 1px solid var(--line); padding: 16px 14px; border-radius: 4px; }
.steps b { display: block; color: var(--red); font-size: 13px; margin-bottom: 6px; }
.steps strong { display: block; margin-bottom: 4px; }
.steps span { color: var(--muted); font-size: 13px; }

.shots { display: grid; grid-template-columns: 1.2fr .8fr; gap: 12px; }
.shots figure { margin: 0; background: #fff; border: 1px solid var(--line); }
.shots img { width: 100%; height: 360px; object-fit: cover; object-position: center; }
.paths { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.path {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  padding: 22px 22px 18px;
  color: var(--ink);
}
.path:hover { border-color: #b9c6d6; color: var(--ink); }
.path b { display: block; font-size: 20px; margin-bottom: 6px; }
.path span { display: block; color: var(--muted); font-size: 14px; line-height: 1.6; }
.floor { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.floor figure { margin: 0; background: #fff; border: 1px solid var(--line); overflow: hidden; }
.floor img { width: 100%; height: 220px; object-fit: cover; object-position: center; }
.floor figcaption { padding: 8px 10px 12px; font-size: 13px; color: var(--muted); line-height: 1.45; }
.floor figcaption b { display: block; color: var(--ink); font-size: 14px; margin-bottom: 2px; }
.shots figcaption { padding: 8px 10px; font-size: 13px; color: var(--muted); }

.article { max-width: 980px; }
.article p, .doc p { margin: 0 0 12px; }
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 28px; align-items: center; margin: 22px 0 8px; }
.split figure { margin: 0; }
.split img { width: 100%; height: 320px; object-fit: cover; border: 1px solid var(--line); background: #f7f8fa; }
.split.contain img { object-fit: contain; height: 300px; }
.split h2 { margin: 0 0 8px; font-size: 22px; }
.split figcaption { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.doc h3 { margin: 18px 0 6px; font-size: 16px; }
.alist { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.alist a { display: block; border: 1px solid var(--line); background: #fff; color: var(--ink); }
.alist a:hover { border-color: #b9c6d6; color: var(--ink); }
.alist img { width: 100%; height: 168px; object-fit: cover; background: #f3f4f6; }
.alist div { padding: 12px 14px 16px; }
.alist h3 { margin: 0 0 6px; font-size: 16px; }
.alist p { margin: 0; color: var(--muted); font-size: 13px; }
main.doc { padding: 44px 0 20px; }
.doc-grid { display: grid; grid-template-columns: 1fr 260px; gap: 48px; align-items: start; }
.doc h1 { margin: 8px 0 16px; font-size: 32px; line-height: 1.3; }
.doc h2 { margin: 40px 0 12px; font-size: 22px; }
.doc .lede { font-size: 16px; margin-bottom: 16px; }
.crumb { color: var(--muted); font-size: 13px; margin: 0 0 18px; }
.rail { position: sticky; top: 88px; border: 1px solid var(--line); background: #fff; padding: 14px; }
.rail h2 { margin: 0 0 8px; font-size: 16px; }
.rail dl { margin: 0 0 8px; display: grid; grid-template-columns: 64px 1fr; gap: 4px 8px; font-size: 13px; }
.rail dt { color: var(--muted); }
.rail dd { margin: 0; font-weight: 700; }
.rail p { margin: 0 0 8px; color: var(--muted); font-size: 13px; }
.rail .btn { margin: 8px 0; }
.rail .tel { display: block; font-size: 13px; margin-top: 4px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 28px 0 12px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 4px; overflow: hidden; }
a.card { display: block; color: inherit; text-decoration: none; }
a.card:hover { border-color: #9aa3ad; }
.card img { width: 100%; height: 220px; object-fit: contain; background: #f7f8fa; padding: 12px; }
.card .pad { padding: 14px 16px 18px; }
.card h3 { margin: 0 0 4px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); font-size: 13px; }
.table { width: 100%; border-collapse: collapse; margin: 12px 0; background: #fff; }
.table th, .table td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.table th { width: 132px; background: #f7f8fa; font-weight: 700; }
.rowitem { display: grid; grid-template-columns: 240px 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.rowitem img { width: 240px; height: 160px; object-fit: cover; background: #f3f4f6; }
.rowitem h3 { margin: 0 0 6px; font-size: 18px; }
.rowitem p { margin: 0 0 6px; }
.note { background: #f7f8fa; border-left: 3px solid var(--navy); padding: 10px 12px; color: #333; }

.qcards, .q4 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 8px 0 8px; }
.qcards article, .q4 article {
  border: 1px solid var(--line);
  padding: 20px 20px 18px;
}
.qcards article { background: #f7f8fa; }
.q4 article { background: #fff; }
.qcards h3, .q4 h3 { margin: 0 0 8px; font-size: 16px; line-height: 1.4; }
.qcards p, .q4 p { margin: 0; color: #333; font-size: 14px; }
.q4 a { display: inline-block; margin-top: 10px; font-size: 13px; }
.handoff {
  background: var(--paper);
  border-top: 1px solid var(--line);
  padding: 64px 0 56px;
}
.handoff h2 { margin: 0 0 8px; font-size: 26px; }
.handoff .lead { margin: 0 0 22px; color: var(--muted); max-width: 40em; }
.site-foot { background: #1a1d22; color: #c5c8ce; padding: 52px 0 20px; font-size: 13px; }
.foot-grid { display: grid; grid-template-columns: 1.3fr .9fr .9fr 1fr; gap: 28px; }
.site-foot h2 { color: #fff; font-size: 15px; margin: 0 0 8px; }
.site-foot ul { margin: 0; padding: 0; list-style: none; }
.site-foot b { color: #fff; display: block; margin-bottom: 8px; }
.site-foot a { color: #c5c8ce; display: block; padding: 3px 0; }
.site-foot a:hover { color: #fff; }
.site-foot p { margin: 0 0 6px; }
.legal { border-top: 1px solid #333; margin-top: 22px; padding-top: 12px; color: #8b9098; }

.faq details { border-bottom: 1px solid var(--line); padding: 10px 0; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq p { margin: 8px 0 4px; color: #333; }

@media (max-width: 980px) {
  .hero-in, .pgrid, .nums, .steps, .shots, .doc-grid, .foot-grid, .cards, .floor, .paths, .split, .alist, .qcards, .q4 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .nums { grid-template-columns: 1fr 1fr; }
  .hero-bleed { min-height: 420px; }
  .hero-bleed h1 { font-size: 40px; }
  .hero-bleed .wrap { padding: 64px 0 36px; }
  .proof, .gallery.wide { grid-template-columns: 1fr 1fr; }
  .hero-photo img, .shots img { height: 220px; }
}
@media (max-width: 860px) {
  .nav-btn {
    display: inline-block;
    margin-left: auto;
    border: 1px solid var(--line);
    padding: 6px 10px;
    border-radius: 2px;
  }
  .nav-toggle:checked ~ .site-nav { display: flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    box-shadow: 0 12px 24px rgba(0,0,0,.06);
  }
  .head-in { position: static; }
  .site-nav > a, .site-nav .top { padding: 10px 0; }
  .nav-toggle:checked ~ .site-nav .mega,
  .nav-toggle:checked ~ .site-nav .mega.wide,
  .nav-toggle:checked ~ .site-nav .mega.narrow {
    display: block;
    position: static;
    width: auto;
    max-height: none;
    box-shadow: none;
    border: 0;
    padding: 0 0 8px 8px;
  }
  .nav-toggle:checked ~ .site-nav .mega-cols { grid-template-columns: 1fr; }
  .head-phone { display: none; }
  .hero-in, .rowitem, .doc-grid, .foot-grid, .shots, .split, .alist, .qcards, .q4 { grid-template-columns: 1fr; }
  .handoff { padding: 40px 0 32px; }
  main.doc { padding-top: 28px; }
  .pgrid, .pgrid.hot, .cards, .gallery { grid-template-columns: 1fr 1fr; }
  .pgrid.hot img, .gallery img { height: 160px; }
  .rowitem img { width: 100%; height: 200px; }
  .hero-photo img { height: 220px; }
}