/* =========================================================
   Ningbo Dacheng Machinery Tools Mfg. Co., Ltd.
   Corporate site - design system & layout
   ========================================================= */

:root{
  /* 深空灰主色系（硬核轻奢 / 简约商务） */
  --brand-900:#0a0c10;
  --brand-800:#14171c;
  --brand-700:#1e2228;
  --brand-600:#2c3138;
  --brand-500:#3d434c;
  --brand-100:#eef0f3;

  /* 金属银辅色系 */
  --silver-900:#5a5f66;
  --silver-600:#8b9098;
  --silver-100:#d8dde3;

  /* 红色点缀色（少量使用） */
  --accent:#c8102e;
  --accent-600:#a00d24;
  --accent-50:#fce8eb;

  --ink:#0f1115;
  --body:#2a2d33;
  --muted:#6b6f76;
  --line:#e5e8ec;
  --bg:#ffffff;
  --bg-soft:#f7f8f9;
  --bg-dark:#0f1115;

  --radius-s:6px;
  --radius:12px;
  --radius-l:20px;
  --shadow-s:0 1px 2px rgba(15,17,21,.06),0 2px 8px rgba(15,17,21,.05);
  --shadow:0 4px 12px rgba(15,17,21,.07),0 12px 32px rgba(15,17,21,.07);
  --shadow-l:0 18px 48px rgba(15,17,21,.14);

  --container:1200px;
  --header-h:74px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --font-sans:"Inter","Helvetica Neue",Helvetica,Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden;}
body{
  margin:0;font-family:var(--font-sans);color:var(--body);
  background:var(--bg);font-size:16px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
html[lang="zh"] body{letter-spacing:.01em;}
img,svg{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);line-height:1.25;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}

/* ---------- layout helpers ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--soft{background:var(--bg-soft);}
.section--dark{background:var(--bg-dark);color:#c8ccd2;}
.section--dark h2,.section--dark h3{color:#fff;}
.section--tight{padding:64px 0;}

.sec-head{max-width:720px;margin-bottom:48px;}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);display:block;}
.sec-head--center .eyebrow::before{display:none;}
.sec-title{font-size:clamp(28px,3.4vw,42px);margin-bottom:16px;}
.sec-desc{font-size:17px;color:var(--body);}
.section--dark .sec-desc{color:#9a9ea5;}

.grid{display:grid;gap:28px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border-radius:var(--radius-s);font-weight:600;font-size:15px;
  transition:all .22s var(--ease);white-space:nowrap;border:1px solid transparent;
}
.btn svg{width:16px;height:16px;flex:none;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(200,16,46,.28);}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:0 10px 24px rgba(200,16,46,.34);}
.btn-dark{background:var(--brand-700);color:#fff;}
.btn-dark:hover{background:var(--brand-600);transform:translateY(-2px);}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-outline{border-color:var(--line);color:var(--ink);background:#fff;}
.btn-outline:hover{border-color:var(--brand-600);color:var(--brand-600);}
.btn-sm{padding:9px 18px;font-size:14px;}
.link-more{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--brand-600);font-size:15px;}
.link-more svg{width:14px;height:14px;transition:transform .22s var(--ease);}
.link-more:hover svg{transform:translateX(4px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);
}
.header-inner{height:var(--header-h);display:flex;align-items:center;gap:32px;}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand img{width:40px;height:40px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-cn{font-size:16px;font-weight:800;color:var(--brand-700);letter-spacing:.02em;}
.brand-en{font-size:10px;font-weight:600;color:var(--muted);letter-spacing:.11em;text-transform:uppercase;}

.nav{margin-left:auto;}
.nav ul{display:flex;align-items:center;gap:6px;}
.nav a{
  display:block;padding:10px 14px;font-size:15px;font-weight:600;color:var(--ink);
  border-radius:var(--radius-s);transition:color .2s,background .2s;
}
.nav a:hover{color:var(--brand-600);background:var(--brand-100);}
.nav a.is-active{color:var(--brand-600);}
.nav a.is-active::after{
  content:"";display:block;height:2px;background:var(--accent);
  margin:6px auto -1px;width:20px;border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:14px;flex:none;}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:var(--radius-s);overflow:hidden;}
.lang-switch button{
  padding:7px 12px;font-size:13px;font-weight:700;color:var(--muted);
  transition:background .2s,color .2s;
}
.lang-switch button.is-active{background:var(--brand-700);color:#fff;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--radius-s);border:1px solid var(--line);align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);}
.nav-toggle span::before{top:-6px;}.nav-toggle span::after{top:6px;}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#c8ccd2;
  background:linear-gradient(120deg,#0a0c10 0%,#1e2228 55%,#2c3138 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse at 30% 40%,#000 10%,transparent 72%);
  mask-image:radial-gradient(ellipse at 30% 40%,#000 10%,transparent 72%);
}
.hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,16,46,.30),transparent 62%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:104px 0 112px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  font-size:13px;font-weight:600;color:#fff;margin-bottom:24px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:#4ade80;box-shadow:0 0 0 4px rgba(74,222,128,.22);}
.hero h1{color:#fff;font-size:clamp(34px,4.6vw,58px);font-weight:800;line-height:1.14;margin-bottom:22px;letter-spacing:.05em;text-align:center;font-family:"Source Han Sans CN","Noto Sans SC",SimHei,"黑体","Microsoft YaHei",sans-serif;}
.hero h1 em{font-style:normal;color:#ff5a6a;}
.hero-lead{font-size:18px;color:#c8ccd2;max-width:560px;margin-bottom:34px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:40px;}
.hero-facts>div{text-align:center;}
.hero-facts .num{font-size:30px;font-weight:800;color:#fff;line-height:1;}
.hero-facts .lbl{font-size:13px;color:#9a9ea5;margin-top:8px;}
.hero-visual{position:relative;}
.hero-visual .frame{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-l);padding:26px;backdrop-filter:blur(6px);
}
.hero-visual img{border-radius:var(--radius);background:#fff;max-width:100%;height:auto;}
.hero-chip{
  position:absolute;left:-26px;bottom:34px;background:#fff;color:var(--ink);
  border-radius:var(--radius);padding:14px 20px;box-shadow:var(--shadow-l);
  display:flex;align-items:center;gap:12px;
}
.hero-chip .k{font-size:22px;font-weight:800;color:var(--brand-700);line-height:1;}
.hero-chip .v{font-size:12px;color:var(--muted);}

/* ---------- page banner (inner pages) ---------- */
.page-banner{
  position:relative;overflow:hidden;padding:76px 0 68px;color:#c8ccd2;
  background:linear-gradient(120deg,#0a0c10,#1e2228);
}
.page-banner::before{
  content:"";position:absolute;inset:0;opacity:.14;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(ellipse at 78% 30%,#000 5%,transparent 68%);
  mask-image:radial-gradient(ellipse at 78% 30%,#000 5%,transparent 68%);
}
.page-banner .container{position:relative;z-index:1;}
.page-banner h1{color:#fff;font-size:clamp(28px,3.8vw,44px);margin-bottom:14px;}
.page-banner p{max-width:640px;color:#c8ccd2;font-size:17px;white-space:nowrap;}
.crumb{display:flex;gap:8px;font-size:13px;color:#9a9ea5;margin-bottom:18px;}
.crumb a:hover{color:#fff;}

/* ---------- stats strip ---------- */
.stats{border-bottom:1px solid var(--line);}
.stats .grid{gap:0;}
.stat{padding:36px 28px;border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;}
.stat:last-child{border-right:0;}
.stat .num{font-size:36px;font-weight:800;color:var(--brand-700);line-height:1;}
.stat .num span{font-size:20px;color:var(--accent);}
.stat .lbl{margin-top:10px;font-size:14px;color:var(--muted);}

/* ---------- cards ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d8dde3;}
.card-media{
  background:linear-gradient(160deg,#f5f6f8,#e8eaed);padding:20px;
  aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;
}
.card-media img{max-height:100%;width:auto;mix-blend-mode:multiply;}
.card-media.card-photo{padding:0;}
.card-media.card-photo img{width:100%;height:100%;object-fit:cover;mix-blend-mode:normal;}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.card-tag{
  align-self:flex-start;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--brand-600);background:var(--brand-100);padding:5px 10px;border-radius:4px;margin-bottom:12px;
}
.card-title{font-size:19px;margin-bottom:8px;}
.card-model{font-size:16px;color:var(--muted);font-family:SimHei,"黑体","Microsoft YaHei",sans-serif;font-weight:700;margin-bottom:12px;}
.card-desc{font-size:15px;margin-bottom:12px;}
.card-specs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px 20px;padding-top:16px;border-top:1px solid var(--line);margin-top:auto;text-align:center;}
.card-specs div{font-size:12px;color:var(--muted);}
.card-specs strong{display:block;font-size:16px;color:var(--ink);font-weight:700;}

/* ---------- feature list ---------- */
.feature{padding:30px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);height:100%;}
.feature .ico{
  width:50px;height:50px;border-radius:12px;background:var(--accent-50);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--accent);
}
.feature .ico svg{width:24px;height:24px;}
.feature h3{font-size:18px;margin-bottom:10px;}
.feature p{font-size:15px;}
.section--dark .feature{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12);}
.section--dark .feature p{color:#9a9ea5;}
.section--dark .feature .ico{background:rgba(200,16,46,.16);}

/* ---------- split media/text ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.split-media{border-radius:var(--radius-l);overflow:hidden;background:linear-gradient(160deg,#f0f2f4,#e2e5e9);padding:28px;}
.split-media img{border-radius:var(--radius);}
/* about intro: 固定 550×550 图框，图片等比放大铺满、无边框 */
.split--intro{grid-template-columns:1fr 550px;}
.split--intro .split-media{width:550px;height:550px;padding:0;}
.split--intro .split-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
/* about qc: 固定 670×500 图框，图片等比满铺、无边框 */
.split--qc{grid-template-columns:670px 1fr;}
.split--qc .split-media{width:670px;height:500px;padding:0;}
.split--qc .split-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
/* about hist: 时间线左、图片右 550×550 满铺无边框 */
.split--hist{grid-template-columns:1fr 550px;}
.split--hist .split-media{width:550px;height:550px;padding:0;align-self:center;}
.split--hist .split-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.check-list li{display:flex;gap:12px;align-items:flex-start;padding:9px 0;font-size:15px;}
.check-list svg{width:20px;height:20px;flex:none;color:var(--accent);margin-top:3px;}

/* ---------- timeline / process ---------- */
.steps{counter-reset:step;display:grid;gap:24px;grid-template-columns:repeat(4,1fr);}
.step{position:relative;padding-top:52px;}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:0;left:0;font-size:15px;font-weight:800;color:#fff;
  width:38px;height:38px;border-radius:50%;background:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
}
.step::after{content:"";position:absolute;top:19px;left:48px;right:-12px;height:1px;background:var(--line);}
.step:last-child::after{display:none;}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;}
table{width:100%;border-collapse:collapse;min-width:680px;}
th,td{padding:14px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line);}
th{background:var(--bg-soft);color:var(--ink);font-weight:700;white-space:nowrap;}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover{background:#f7f8f9;}
td strong{color:var(--ink);}

/* ---------- news ---------- */
.news-card{display:flex;flex-direction:column;height:100%;}
.news-date{font-size:13px;color:var(--accent);font-weight:700;margin-bottom:10px;}
.news-card h3{font-size:18px;margin-bottom:10px;}
.news-card p{font-size:15px;margin-bottom:16px;}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,#1e2228,#2c3138);border-radius:var(--radius-l);
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,16,46,.35),transparent 62%);
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:10px;}
.cta-band p{color:#c8ccd2;}

/* ---------- forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:600;color:var(--ink);}
.field label .req{color:var(--accent);}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-s);
  font:inherit;font-size:15px;color:var(--ink);background:#fff;transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,34,40,.14);
}
.field textarea{min-height:132px;resize:vertical;}
.form-note{font-size:13px;color:var(--muted);margin-top:6px;}
.form-alert{
  display:none;margin-top:16px;padding:14px 16px;border-radius:var(--radius-s);
  background:#eaf7ef;border:1px solid #b9e3c9;color:#1c6b3a;font-size:14px;
}
.form-alert.show{display:block;}

/* ---------- contact info ---------- */
.info-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);}
.info-item:last-child{border-bottom:0;}
.info-item .ico{width:42px;height:42px;border-radius:10px;background:var(--brand-100);color:var(--brand-600);display:flex;align-items:center;justify-content:center;flex:none;}
.info-item .ico svg{width:20px;height:20px;}
.info-item h4{font-size:15px;margin-bottom:4px;}
.info-item p{font-size:15px;}
.map-embed{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--bg-soft);}

/* ---------- filter chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;}
.chip{
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--body);transition:all .2s;
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-600);}
.chip.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;}

/* ---------- cert / honor ---------- */
.cert{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;text-align:center;transition:transform .25s var(--ease),box-shadow .25s;}
.cert:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.cert img{margin:0 auto 14px;}
.cert h4{font-size:15px;margin-bottom:4px;}
.cert p{font-size:13px;color:var(--muted);}

/* ---------- footer ---------- */
.site-footer{background:#0a0c10;color:#9a9ea5;padding:72px 0 0;font-size:15px;}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand img{width:38px;height:38px;}
.footer-brand .brand-cn{color:#fff;}
.footer-brand .brand-en{color:#6b6f76;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.02em;}
.site-footer li{margin-bottom:11px;}
.site-footer a:hover{color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;max-width:340px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#6b6f76;
}
.footer-bottom a:hover{color:#fff;}
.footer-wechat{margin-top:20px;text-align:center;}
.footer-wechat img{width:120px;height:120px;border-radius:8px;background:#fff;padding:6px;display:block;}
.footer-wechat span{display:block;margin-top:8px;font-size:13px;color:#9a9ea5;}

/* ---------- misc ---------- */
.back-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:var(--brand-700);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;z-index:90;
}
.back-top.show{opacity:1;pointer-events:auto;}
.back-top:hover{transform:translateY(-3px);background:var(--brand-600);}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.in{opacity:1;transform:none;}
[data-i18n-hidden]{display:none;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;padding:76px 0 88px;}
  .hero-visual{max-width:520px;}
  .page-banner p{white-space:normal;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:40px;}
  .split--intro{grid-template-columns:1fr;}
  .split--intro .split-media{width:100%;height:auto;aspect-ratio:1/1;}
  .split--qc{grid-template-columns:1fr;}
  .split--qc .split-media{width:100%;height:auto;aspect-ratio:67/50;}
  .split--hist{grid-template-columns:1fr;}
  .split--hist .split-media{width:100%;height:auto;aspect-ratio:1/1;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .footer-top{grid-template-columns:1fr 1fr;gap:34px;}
  .stat{border-right:0;border-bottom:1px solid var(--line);}
}
@media (max-width:820px){
  /* 窄屏时页头要能塞得下：收紧间距、隐藏英文小标 */
  .header-inner{gap:12px;}
  .brand-en{display:none;}
  .brand-cn{font-size:15px;}
  .brand img{width:36px;height:36px;}
  .header-actions{gap:8px;}
  .lang-switch button{padding:7px 10px;font-size:12px;}
  .nav{
    position:fixed;inset:var(--header-h) 0 auto;background:#fff;border-bottom:1px solid var(--line);
    padding:12px 24px 22px;display:none;box-shadow:var(--shadow);
  }
  .nav.open{display:block;}
  .nav ul{flex-direction:column;align-items:stretch;gap:2px;}
  .nav a{padding:13px 12px;font-size:16px;}
  .nav a.is-active::after{display:none;}
  .nav-toggle{display:flex;order:3;}
  .header-actions{margin-left:auto;}
  .header-actions .btn{display:none;}
}
@media (max-width:680px){
  /* 手机上悬浮小卡改为常规排布，避免溢出屏幕左侧 */
  .hero-chip{position:static;margin-top:16px;display:inline-flex;}
  .hero-visual{max-width:100%;}
  .section{padding:64px 0;}
  .grid-3,.grid-4,.grid-2,.steps,.form-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 26px;}
  .footer-top{grid-template-columns:1fr;}
  .hero-facts{display:grid;grid-template-columns:1fr 1fr;gap:22px 18px;}
  .hero-facts .num{font-size:26px;}
  .sec-head{margin-bottom:34px;}
}
@media print{ .site-header,.site-footer,.back-top{display:none;} }

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px;}
.timeline::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:var(--line);}
.tl-item{position:relative;padding:0 0 34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:7px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--brand-500);
}
.tl-item:first-child::before{border-color:var(--accent);}
.tl-year{font-size:15px;font-weight:800;color:var(--accent);letter-spacing:.04em;margin-bottom:5px;}
.tl-item p{font-size:15px;}

/* ---------- FAQ ---------- */
.faq-list{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);transition:background .2s;
}
.faq-q:hover{background:var(--bg-soft);}
.faq-q .sign{
  flex:none;width:26px;height:26px;border-radius:50%;background:var(--brand-100);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;transition:transform .25s var(--ease),background .2s,color .2s;
}
.faq-item.open .faq-q .sign{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease);}
.faq-item.open .faq-a{max-height:900px;}
.faq-a p{padding:0 24px 22px;font-size:15px;}

/* ---------- download list ---------- */
.dl-list{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;}
.dl-item{display:flex;align-items:center;gap:16px;padding:18px 24px;border-bottom:1px solid var(--line);transition:background .2s;}
.dl-item:last-child{border-bottom:0;}
.dl-item:hover{background:var(--bg-soft);}
.dl-item .ico{width:38px;height:38px;border-radius:9px;background:var(--accent-50);color:var(--accent);display:flex;align-items:center;justify-content:center;flex:none;}
.dl-item .ico svg{width:19px;height:19px;}
.dl-item .name{font-weight:600;color:var(--ink);font-size:15px;}
.dl-item .meta{font-size:13px;color:var(--muted);margin-top:2px;}
.dl-item .go{margin-left:auto;color:var(--brand-600);font-size:14px;font-weight:600;white-space:nowrap;}

/* ---------- industries strip ---------- */
.ind-strip{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}
.ind-strip span{
  padding:10px 20px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--body);
}
.strip-title{text-align:center;font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:22px;}

/* ---------- map placeholder ---------- */
.map-canvas{
  position:relative;height:320px;
  background:
    linear-gradient(rgba(229,232,236,.9) 1px,transparent 1px) 0 0/40px 40px,
    linear-gradient(90deg,rgba(229,232,236,.9) 1px,transparent 1px) 0 0/40px 40px,
    linear-gradient(135deg,#f5f6f8,#e8eaed);
}
.map-canvas .road{position:absolute;background:#e5e8ec;}
.map-pin{
  position:absolute;left:50%;top:46%;transform:translate(-50%,-100%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.map-pin .dot{width:20px;height:20px;border-radius:50% 50% 50% 0;background:var(--accent);transform:rotate(-45deg);box-shadow:0 6px 14px rgba(200,16,46,.4);}
.map-pin .label{background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 14px;font-size:13px;font-weight:600;color:var(--ink);box-shadow:var(--shadow-s);white-space:nowrap;}

/* ---------- office cards ---------- */
.office{padding:28px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);height:100%;}
.office .flagline{width:34px;height:4px;border-radius:2px;background:var(--accent);margin-bottom:16px;}
.office h3{font-size:17px;margin-bottom:8px;}
.office p{font-size:15px;}

/* ---------- 内容加载异常提示条 ---------- */
.content-warning{
  position:relative;z-index:200;background:#fff4e5;border-bottom:1px solid #f5c98a;
  color:#7a4a10;font-size:14px;line-height:1.6;padding:12px 24px;text-align:center;
}
.content-warning::before{content:"⚠ ";font-weight:700;}

/* ---------- admin.html 内容编辑器 ---------- */
.adm-shell{max-width:1180px;margin:0 auto;padding:0 24px 80px;}
.adm-bar{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);padding:14px 0;margin-bottom:28px;
}
.adm-bar .inner{max-width:1180px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.adm-bar h1{font-size:17px;margin-right:auto;}
.adm-bar h1 small{display:block;font-size:12px;color:var(--muted);font-weight:500;margin-top:2px;}
.adm-status{font-size:13px;color:var(--muted);}
.adm-status.ok{color:#1c6b3a;}
.adm-status.err{color:#b3261e;}
.adm-tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:26px;flex-wrap:wrap;}
.adm-tabs button{
  padding:11px 18px;font-size:15px;font-weight:600;color:var(--muted);
  border-bottom:2px solid transparent;margin-bottom:-1px;
}
.adm-tabs button.on{color:var(--brand-700);border-bottom-color:var(--accent);}
.adm-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:16px;}
.adm-card > summary{cursor:pointer;font-weight:700;color:var(--ink);font-size:16px;list-style:none;display:flex;align-items:center;gap:10px;}
.adm-card > summary::-webkit-details-marker{display:none;}
.adm-card > summary::before{content:"▸";color:var(--muted);transition:transform .2s;}
.adm-card[open] > summary::before{transform:rotate(90deg);}
.adm-card > summary .badge{font-size:12px;color:var(--muted);font-weight:500;margin-left:auto;font-family:ui-monospace,Menlo,monospace;}
.adm-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px;}
.adm-grid .full{grid-column:1/-1;}
.adm-f{display:flex;flex-direction:column;gap:6px;}
.adm-f label{font-size:13px;font-weight:600;color:var(--ink);}
.adm-f label em{font-style:normal;color:var(--muted);font-weight:500;}
.adm-f input,.adm-f textarea,.adm-f select{
  padding:9px 12px;border:1px solid var(--line);border-radius:var(--radius-s);
  font:inherit;font-size:14px;color:var(--ink);background:#fff;width:100%;
}
.adm-f textarea{min-height:74px;resize:vertical;line-height:1.6;}
.adm-f input:focus,.adm-f textarea:focus,.adm-f select:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,34,40,.14);
}
.adm-row{display:grid;grid-template-columns:220px 1fr 1fr;gap:12px;align-items:start;padding:10px 0;border-bottom:1px solid var(--line);}
.adm-row:last-child{border-bottom:0;}
.adm-key{font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--muted);word-break:break-all;padding-top:9px;}
.adm-sub{display:flex;gap:8px;align-items:center;margin:10px 0;}
.adm-sub input{flex:1;}
.adm-mini{padding:6px 12px;font-size:13px;border-radius:var(--radius-s);border:1px solid var(--line);background:#fff;font-weight:600;color:var(--body);}
.adm-mini:hover{border-color:var(--brand-500);color:var(--brand-600);}
.adm-mini.danger:hover{border-color:#e5484d;color:#e5484d;}
.adm-search{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:var(--radius-s);font-size:15px;margin-bottom:18px;}
.adm-hint{background:var(--brand-100);border-radius:var(--radius-s);padding:14px 16px;font-size:14px;color:var(--brand-700);margin-bottom:22px;line-height:1.7;}
.adm-drop{border:2px dashed var(--line);border-radius:var(--radius);padding:36px;text-align:center;color:var(--muted);font-size:15px;}
.adm-drop.over{border-color:var(--accent);background:var(--accent-50);color:var(--accent-600);}
@media (max-width:820px){
  .adm-grid{grid-template-columns:1fr;}
  .adm-row{grid-template-columns:1fr;}
  .adm-key{padding-top:0;}
}

/* ---------- contact: map + form states ---------- */
.map-frame{display:block;width:100%;height:320px;border:0;}
.map-embed p a{color:var(--accent);font-weight:600;white-space:nowrap;}
.form-alert.err{background:#fdecee;border-color:#f3b8c0;color:#9b1c2e;}
.field.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;}
.map-wrap{position:relative;}
.map-label{
  position:absolute;left:50%;top:50%;transform:translate(-50%,calc(-100% - 46px));
  background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 12px;
  font-size:13px;font-weight:600;color:var(--ink);box-shadow:var(--shadow-s);
  white-space:nowrap;max-width:calc(100% - 24px);overflow:hidden;text-overflow:ellipsis;pointer-events:none;
}
.map-label::after{
  content:"";position:absolute;left:50%;bottom:-6px;width:10px;height:10px;margin-left:-5px;
  background:#fff;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transform:rotate(45deg);
}