/* ==========================================================================
   美擎工业集团 官网 v2 —— 全站视觉系统
   配色：深空蓝（品牌）+ 电光青（强调）；B2B 工业风，重转化
   ========================================================================== */

:root{
  --brand-900:#0C2349;
  --brand-800:#123063;
  --brand-700:#1A4480;
  --brand-600:#2F5597;
  --brand-500:#4472C4;
  --cyan-600:#0086BF;
  --cyan-500:#00A8E8;
  --cyan-400:#4FC8F5;
  --ink:#182130;
  --ink-2:#5B6B80;
  --ink-3:#8A97A8;
  --line:#E3E9F2;
  --line-2:#EDF1F7;
  --surface:#FFFFFF;
  --surface-2:#E9F1FC;
  --surface-3:#DAE6F8;
  --ok:#2E7D32;
  --warn:#C2410C;
  /* —— 点睛红（Red Dot accent）：只在细节处少量使用，用于点亮视觉 —— */
  --dot:#E5484D;          /* 主点睛红：小圆点、短线段、图标点缀 */
  --dot-deep:#C93A3F;     /* 深一档：红底文字或需要更稳的场合 */
  --dot-soft:#FDEDEE;     /* 极浅红底 */
  --dot-warm:#F0806A;     /* 暖红：与主红做渐变，避免单色发闷 */
  --dot-ring:rgba(229,72,77,.16);   /* 红点的柔光环 */
  --radius:14px;
  --radius-sm:10px;
  --shadow-xs:0 1px 2px rgba(12,35,73,.05);
  --shadow-sm:0 2px 8px rgba(12,35,73,.06),0 1px 2px rgba(12,35,73,.04);
  --shadow-md:0 6px 20px rgba(12,35,73,.09),0 2px 6px rgba(12,35,73,.05);
  --shadow-lg:0 20px 50px rgba(12,35,73,.16),0 6px 18px rgba(12,35,73,.08);
  --ease:cubic-bezier(.22,.7,.3,1);
  --nav-h:66px;
}

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth; -webkit-text-size-adjust:100%;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink); background:var(--surface); line-height:1.75; font-size:15.5px;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
a{color:var(--brand-600); text-decoration:none; transition:color .18s var(--ease);}
a:hover{color:var(--cyan-600);}
/* 正文列表符号：统一用点睛红 */
ul li::marker{color:var(--dot);}
img{max-width:100%; display:block;}
ul,ol{margin-left:20px;}
strong,b{font-weight:700;}

.container{max-width:1120px; margin:0 auto; padding:0 22px;}
.container-narrow{max-width:860px; margin:0 auto; padding:0 22px;}

/* ---------- 吸顶导航 ---------- */
.site-header{
  position:sticky; top:0; z-index:80; background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px); -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid transparent; transition:box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.site-header.scrolled{box-shadow:0 4px 20px rgba(12,35,73,.10); border-bottom-color:var(--line);}
.nav-bar{display:flex; align-items:center; justify-content:space-between; gap:16px; min-height:var(--nav-h);}
.brand{display:flex; align-items:center; gap:11px; font-size:19px; font-weight:800; color:var(--brand-800); letter-spacing:.3px; line-height:1.2;}
.brand:hover{color:var(--brand-800);}
.brand-mark{width:38px; height:38px; flex:0 0 38px;}
.brand-txt small{display:block; font-size:10.5px; font-weight:500; color:var(--ink-3); letter-spacing:1.4px; margin-top:1px;}

.nav-links{display:flex; align-items:center; gap:2px;}
.nav-links a{
  position:relative; padding:9px 13px; color:var(--ink); border-radius:9px; font-size:14.5px; font-weight:500;
  transition:background .18s var(--ease), color .18s var(--ease); white-space:nowrap;
}
.nav-links a:hover{background:var(--surface-2); color:var(--brand-600);}
.nav-links a.active{color:var(--brand-600); font-weight:700; background:var(--surface-2);}
/* 当前页：标签下缘一枚红色短线，作为「红点」式定位 */
.nav-links a.active::after{
  content:""; position:absolute; left:50%; transform:translateX(-50%); bottom:3px;
  width:16px; height:2px; border-radius:2px; background:var(--dot);
}
.nav-links a.cta{
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500)); color:#fff; font-weight:700;
  margin-left:8px; padding:10px 20px; box-shadow:0 4px 14px rgba(47,85,151,.28);
}
.nav-links a.cta:hover{box-shadow:0 6px 20px rgba(47,85,151,.4); transform:translateY(-1px); color:#fff;}

.nav-toggle{
  display:none; width:42px; height:42px; border:1px solid var(--line); background:#fff; border-radius:10px;
  cursor:pointer; padding:0; align-items:center; justify-content:center; flex-direction:column; gap:5px;
}
.nav-toggle span{display:block; width:18px; height:2px; background:var(--brand-800); border-radius:2px; transition:.22s var(--ease);}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:7px;
  padding:13px 30px; border-radius:999px; font-size:15px; font-weight:700; cursor:pointer;
  border:1px solid transparent; font-family:inherit; line-height:1;
  transition:transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:linear-gradient(135deg,var(--brand-600),var(--brand-500)); color:#fff; box-shadow:0 6px 18px rgba(47,85,151,.3);}
.btn-primary:hover{color:#fff; box-shadow:0 10px 26px rgba(47,85,151,.42);}
.btn-white{background:#fff; color:var(--brand-700); box-shadow:0 6px 20px rgba(0,0,0,.14);}
.btn-white:hover{color:var(--brand-800); box-shadow:0 10px 28px rgba(0,0,0,.2);}
.btn-ghost{background:rgba(255,255,255,.08); color:#fff; border-color:rgba(255,255,255,.55); backdrop-filter:blur(4px);}
.btn-ghost:hover{background:rgba(255,255,255,.18); color:#fff; border-color:#fff;}
.btn-outline{background:#fff; color:var(--brand-600); border-color:var(--brand-500);}
.btn-outline:hover{background:var(--brand-600); color:#fff;}
.btn-lg{padding:15px 36px; font-size:15.5px;}
.btn-sm{padding:10px 22px; font-size:14px;}

/* ---------- Hero ---------- */
.hero{
  position:relative; color:#fff; text-align:center; overflow:hidden;
  padding:92px 22px 84px;
  background:
    radial-gradient(900px 420px at 50% -10%, rgba(0,168,232,.34), transparent 62%),
    radial-gradient(700px 380px at 88% 108%, rgba(79,200,245,.20), transparent 60%),
    linear-gradient(160deg,var(--brand-900) 0%,var(--brand-800) 45%,var(--brand-700) 100%);
}
.hero::before{
  content:""; position:absolute; inset:0; opacity:.5; pointer-events:none;
  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:56px 56px;
  mask-image:radial-gradient(760px 420px at 50% 40%, #000 30%, transparent 78%);
  -webkit-mask-image:radial-gradient(760px 420px at 50% 40%, #000 30%, transparent 78%);
}
.hero.has-photo{
  background-image:
    radial-gradient(900px 420px at 50% 0%, rgba(0,168,232,.30), transparent 60%),
    linear-gradient(160deg,rgba(12,35,73,.93),rgba(18,48,99,.86) 55%,rgba(26,68,128,.82)),
    url('images/hero.jpg');
  background-size:auto,auto,cover; background-position:center,center,center;
}
.hero > *{position:relative; z-index:2;}
.hero h1{
  font-size:clamp(28px,4.6vw,46px); font-weight:800; letter-spacing:2px; line-height:1.28;
  margin-bottom:16px; text-shadow:0 2px 24px rgba(0,0,0,.22);
}
.hero h1 em{font-style:normal; color:var(--cyan-400);}
.hero p.lead{font-size:clamp(14.5px,1.6vw,17px); opacity:.9; max-width:760px; margin:0 auto 30px; line-height:1.85;}
.hero .btns{display:flex; gap:14px; justify-content:center; flex-wrap:wrap;}
.hero-inner{position:relative; z-index:2;}

/* 内页 Hero */
.hero.page{padding:64px 22px 58px; text-align:left;}
.hero.page h1{font-size:clamp(24px,3.4vw,36px); letter-spacing:.5px; margin-bottom:12px;}
.hero.page p.lead{margin:0 0 26px; max-width:840px;}
.hero.page .btns{justify-content:flex-start;}
.hero-sub{
  font-size:13.5px; letter-spacing:1px; color:var(--cyan-400); font-weight:700; margin-bottom:10px;
  display:inline-flex; align-items:center; gap:9px;
}
.hero-sub::before{
  content:""; width:8px; height:8px; border-radius:50%; flex:0 0 8px;
  background:var(--dot); box-shadow:0 0 0 4px rgba(229,72,77,.22);
}

/* 信任条 */
.trust-bar{
  display:flex; flex-wrap:wrap; gap:10px 26px; justify-content:center; align-items:center;
  margin-top:34px; padding-top:26px; border-top:1px solid rgba(255,255,255,.16);
}
.hero.page .trust-bar{justify-content:flex-start;}
.trust-bar span{display:inline-flex; align-items:center; gap:8px; font-size:13.5px; opacity:.94;}
.trust-bar svg{width:16px; height:16px; flex:0 0 16px;}

/* ---------- 区块 ---------- */
section{padding:66px 0;}
section.tight{padding:46px 0;}
section.alt{
  background:
    radial-gradient(760px 320px at 88% -18%, rgba(0,168,232,.10), transparent 62%),
    linear-gradient(180deg,#F1F6FE 0%,var(--surface-2) 46%,#E3EDFA 100%);
  border-top:1px solid rgba(47,85,151,.12);
  border-bottom:1px solid rgba(47,85,151,.12);
}
section.alt.deep{
  background:
    radial-gradient(700px 300px at 12% -14%, rgba(0,168,232,.12), transparent 60%),
    linear-gradient(180deg,#E7F0FC 0%,var(--surface-3) 100%);
  border-top:1px solid rgba(47,85,151,.16);
  border-bottom:1px solid rgba(47,85,151,.16);
}
section.dark{background:linear-gradient(160deg,var(--brand-900),var(--brand-800)); color:#fff;}
.sec-head{text-align:center; margin-bottom:38px;}
.sec-title{font-size:clamp(21px,2.6vw,27px); color:var(--brand-800); font-weight:800; letter-spacing:.5px; margin-bottom:9px;}
.sec-title.left{text-align:left;}
.sec-sub{color:var(--ink-2); font-size:14.5px; max-width:660px; margin:0 auto;}
.sec-sub.left{margin:0;}
.sec-eyebrow{
  display:inline-flex; align-items:center; gap:8px; font-size:12px; font-weight:800; letter-spacing:2px; color:var(--cyan-600);
  text-transform:uppercase; margin-bottom:10px;
}
.sec-eyebrow::before{
  content:""; width:7px; height:7px; border-radius:50%; flex:0 0 7px;
  background:var(--dot); box-shadow:0 0 0 3px var(--dot-ring);
}
section.dark .sec-title{color:#fff;}
section.dark .sec-sub{color:rgba(255,255,255,.78);}

/* ---------- 数据条 ---------- */
.stats{display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:14px; margin-top:8px;}
.stat{background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.14); border-radius:var(--radius-sm); padding:20px 16px; text-align:center; backdrop-filter:blur(6px);}
/* 数据条：数字上方一抹红短线，是页面里最先被看见的「红点」 */
.stat::before{
  content:""; display:block; width:22px; height:3px; border-radius:2px; margin:0 auto 11px;
  background:linear-gradient(90deg,var(--dot),var(--dot-warm));
}
.stat b{display:block; font-size:26px; font-weight:800; color:var(--cyan-400); line-height:1.2; letter-spacing:.5px;}
.stat span{font-size:12.5px; opacity:.82;}

/* ---------- 产品卡 ---------- */
.grid-4{display:grid; grid-template-columns:repeat(auto-fit,minmax(248px,1fr)); gap:20px;}
/* 我们服务谁：6 张卡固定 3 列，保证 3×2 对称 */
.cust-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px;}
@media (max-width:980px){ .cust-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:640px){ .cust-grid{grid-template-columns:1fr;} }
.grid-3{display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:20px;}
.grid-2{display:grid; grid-template-columns:repeat(auto-fit,minmax(320px,1fr)); gap:20px;}

.p-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:0 0 22px; overflow:hidden;
  box-shadow:var(--shadow-xs); transition:transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s var(--ease);
  display:flex; flex-direction:column; position:relative;
}
.p-card:hover{transform:translateY(-5px); box-shadow:var(--shadow-md); border-color:#C7D8F2;}
.p-card .card-media{position:relative; overflow:hidden; background:var(--surface-2);}
.p-card img.card-img{width:100%; height:158px; object-fit:cover; transition:transform .5s var(--ease);}
.p-card:hover img.card-img{transform:scale(1.045);}
.p-card .card-badge{
  position:absolute; left:12px; top:12px; background:rgba(12,35,73,.82); color:#fff; font-size:11.5px; font-weight:700;
  padding:4px 10px; border-radius:999px; backdrop-filter:blur(4px); letter-spacing:.3px;
}
.p-card .card-body{padding:20px 22px 0; flex:1; display:flex; flex-direction:column;}
.p-card h3{font-size:17px; color:var(--brand-800); margin-bottom:9px; font-weight:800;}
.p-card p{font-size:13.6px; color:var(--ink-2); margin-bottom:13px; flex:1; line-height:1.72;}
.p-card .more{font-size:13.6px; font-weight:700; display:inline-flex; align-items:center; gap:5px; color:var(--brand-600);}
.p-card .more::after{content:"→"; transition:transform .22s var(--ease);}
.p-card:hover .more::after{transform:translateX(4px);}
.p-card .more:hover{color:var(--cyan-600);}
.p-card:hover .more{color:var(--dot-deep);}

.tags span{
  display:inline-block; background:#EEF4FE; color:var(--brand-600); font-size:11.8px; font-weight:600;
  padding:3px 10px; border-radius:6px; margin:0 5px 6px 0;
}
.p-card.plain{padding:24px 22px;}
.p-card.plain p{flex:none; min-height:66px;}
.p-card.plain h3{display:flex; align-items:center; gap:9px;}
.p-card.plain h3::before{
  content:""; width:4px; height:17px; border-radius:2px; flex:0 0 4px;
  background:linear-gradient(180deg,var(--dot),var(--brand-500));
}

/* ---------- 客户卡 ---------- */
.cust{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:26px 24px 22px;
  box-shadow:var(--shadow-xs); display:flex; flex-direction:column;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.cust:hover{transform:translateY(-5px); box-shadow:var(--shadow-md); border-color:#C7D8F2;}
.cust-ico{
  width:46px; height:46px; border-radius:12px; margin-bottom:15px; flex:0 0 46px;
  background:linear-gradient(135deg,#EAF1FB,#DDE9FA); color:var(--brand-600);
  display:flex; align-items:center; justify-content:center;
}
.cust-ico svg{width:24px; height:24px;}
.cust h3{font-size:16.5px; font-weight:800; color:var(--brand-800); margin-bottom:8px;}
.cust p{font-size:13.6px; color:var(--ink-2); line-height:1.72; margin-bottom:15px; flex:1;}
.cust-tags{display:flex; flex-wrap:wrap; gap:7px;}
.cust-tags span{
  font-size:12px; color:var(--brand-600); background:#F1F6FD; border:1px solid #DCE7F7;
  padding:3px 10px; border-radius:999px; white-space:nowrap;
}
.cust:hover .cust-ico{background:linear-gradient(135deg,var(--brand-600),var(--brand-500)); color:#fff; transition:background .25s var(--ease), color .25s var(--ease);}

/* ---------- 行情看板 ---------- */
.mq-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:16px;}
@media (max-width:980px){ .mq-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:560px){ .mq-grid{grid-template-columns:1fr;} }
.mq-quote{
  display:block; background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:18px 20px; box-shadow:var(--shadow-xs);
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.mq-quote:hover{transform:translateY(-3px); box-shadow:var(--shadow-sm); border-color:#C7D8F2;}
.mq-name{display:block; font-size:15px; font-weight:800; color:var(--brand-800);}
.mq-sub{display:block; font-size:12px; color:var(--ink-3); margin-bottom:9px;}
.mq-val{display:block; font-size:23px; font-weight:800; color:var(--ink); letter-spacing:.4px; line-height:1.25;}
.mq-val em{font-size:12.5px; font-weight:600; color:var(--ink-3); font-style:normal; margin-left:4px;}
.mq-chg{display:inline-block; margin-top:8px; font-size:12.5px; font-weight:700; padding:2px 10px; border-radius:999px;}
.mq-chg.up{color:#C0392B; background:#FCEDEA;}
.mq-chg.down{color:#1E7D45; background:#E9F6EE;}
.mq-chg.flat{color:#5A6577; background:#EEF1F6;}
.mq-note{font-size:12.4px; color:var(--ink-3); line-height:1.85; margin-top:18px;}
.mq-note.center{text-align:center;}
.mq-news-list{list-style:none; margin:0; display:grid; gap:10px;}
.mq-news-item{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius-sm); padding:14px 18px;
  display:flex; justify-content:space-between; align-items:center; gap:14px; box-shadow:var(--shadow-xs);
  transition:box-shadow .22s var(--ease), transform .22s var(--ease);
}
.mq-news-item:hover{box-shadow:var(--shadow-sm); transform:translateX(3px);}
.mq-news-item a{font-size:14.6px; font-weight:600; color:var(--brand-800);}
.mq-news-item a:hover{color:var(--cyan-600);}
.mq-news-src{font-size:12px; color:var(--ink-3); white-space:nowrap;}

/* 首页行情条 */
.mq-strip{background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:22px 24px; box-shadow:var(--shadow-sm);}
.mq-strip-head{display:flex; justify-content:space-between; align-items:center; gap:12px; flex-wrap:wrap; margin-bottom:16px;}
.mq-live{font-size:13px; font-weight:700; color:var(--brand-700); display:inline-flex; align-items:center; gap:8px;}
.mq-live i{width:8px; height:8px; border-radius:50%; background:var(--dot); box-shadow:0 0 0 4px var(--dot-ring);}
.mq-updated{font-size:12.4px; color:var(--ink-3);}
.mq-strip .mq-quotes{display:grid; grid-template-columns:repeat(4,1fr); gap:12px;}
@media (max-width:980px){ .mq-strip .mq-quotes{grid-template-columns:repeat(2,1fr);} }
@media (max-width:560px){ .mq-strip .mq-quotes{grid-template-columns:1fr;} }
.mq-strip .mq-quote{padding:14px 16px; background:var(--surface-2); border-color:#D8E4F5; box-shadow:none;}
.mq-strip .mq-quote:hover{transform:translateY(-2px); background:#fff;}
.mq-strip .mq-val{font-size:19px;}
.mq-strip .mq-chg{margin-top:6px; font-size:12px;}
.mq-strip .mq-news{margin-top:16px; border-top:1px dashed var(--line); padding-top:14px; display:grid; gap:2px;}
.mq-strip .mq-news-item{background:transparent; border:none; border-radius:0; box-shadow:none; padding:9px 2px; border-bottom:1px dashed var(--line-2);}
.mq-strip .mq-news-item:last-child{border-bottom:none;}
.mq-strip .mq-news-item:hover{transform:none; box-shadow:none;}
.mq-strip .mq-news-item a{font-size:14.2px; font-weight:600;}
.mq-more{display:inline-flex; align-items:center; gap:6px; margin-top:14px; font-weight:700; font-size:14px; color:var(--brand-600);}
.mq-more:hover{color:var(--cyan-600);}

/* ---------- 优势卡 ---------- */
.adv{
  background:#fff; border:1px solid var(--line); border-left:4px solid var(--brand-500); border-radius:0 var(--radius) var(--radius) 0;
  padding:22px 24px; box-shadow:var(--shadow-xs); transition:box-shadow .25s var(--ease), transform .25s var(--ease), border-left-color .25s var(--ease);
}
.adv:hover{box-shadow:var(--shadow-sm); transform:translateX(3px); border-left-color:var(--dot);}
.adv b{color:var(--brand-800); display:block; margin-bottom:7px; font-size:15.5px;}
.adv span{font-size:13.8px; color:var(--ink-2); line-height:1.75;}

/* ---------- 流程 ---------- */
.flow-steps{display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:16px; counter-reset:step; position:relative;}
.step{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:26px 18px 22px; text-align:center;
  position:relative; box-shadow:var(--shadow-xs); transition:transform .25s var(--ease), box-shadow .25s var(--ease);
}
.step:hover{transform:translateY(-4px); box-shadow:var(--shadow-sm);}
/* 悬停时序号变红，形成流程上的「红点」指引 */
.step:hover::before{background:linear-gradient(135deg,var(--dot),var(--dot-deep)); box-shadow:0 5px 14px rgba(229,72,77,.32);}
.step::before{
  counter-increment:step; content:counter(step);
  position:absolute; top:-16px; left:50%; transform:translateX(-50%);
  width:34px; height:34px; line-height:34px; border-radius:50%; font-weight:800; font-size:14px;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500)); color:#fff;
  box-shadow:0 5px 14px rgba(47,85,151,.32);
}
.step b{display:block; font-size:14.8px; color:var(--brand-800); margin:14px 0 5px;}
.step i{font-style:normal; font-size:12.8px; color:var(--ink-2);}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto; -webkit-overflow-scrolling:touch; border-radius:var(--radius); box-shadow:var(--shadow-xs); margin:20px 0;}
table{width:100%; border-collapse:collapse; font-size:14px; background:#fff; min-width:520px;}
th{background:linear-gradient(135deg,var(--brand-700),var(--brand-600)); color:#fff; padding:13px 15px; text-align:left; font-weight:600; font-size:13.8px; white-space:nowrap;}
td{border-bottom:1px solid var(--line-2); padding:13px 15px; vertical-align:top; color:#33404F; line-height:1.7;}
tbody tr:last-child td{border-bottom:none;}
tbody tr:nth-child(even) td{background:#FBFCFE;}
tbody tr:hover td{background:#F4F8FE;}
td b{color:var(--brand-700);}

/* ---------- FAQ（原生折叠） ---------- */
.faq{max-width:820px; margin:0 auto;}
.faq details{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius); margin-bottom:12px;
  box-shadow:var(--shadow-xs); overflow:hidden; transition:box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.faq details[open]{box-shadow:var(--shadow-sm); border-color:#C7D8F2;}
.faq summary{
  cursor:pointer; padding:17px 52px 17px 20px; font-weight:700; color:var(--brand-800); font-size:14.8px;
  list-style:none; position:relative; user-select:none;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"+"; position:absolute; right:20px; top:50%; transform:translateY(-50%);
  font-size:20px; font-weight:400; color:var(--dot); transition:transform .22s var(--ease), color .22s var(--ease); line-height:1;
}
.faq details[open] summary::after{content:"−"; color:var(--dot-deep);}
.faq .ans{padding:0 20px 18px; font-size:14px; color:var(--ink-2); line-height:1.8; border-top:1px solid var(--line-2); padding-top:14px; margin-top:0;}

/* ---------- 表单 ---------- */
.form-box{
  background:#fff; border:1px solid var(--line); border-radius:18px; padding:34px 34px 30px;
  max-width:700px; margin:0 auto; box-shadow:var(--shadow-md);
}
.form-box .form-title{font-size:20px; font-weight:800; color:var(--brand-800); margin-bottom:6px;}
.form-box .form-title::before{
  content:""; display:inline-block; width:8px; height:8px; border-radius:50%;
  background:var(--dot); box-shadow:0 0 0 3px var(--dot-ring); margin-right:9px; vertical-align:2px;
}
.form-box .form-hint{font-size:13px; color:var(--ink-3); margin-bottom:22px;}
.form-box label{display:block; font-size:13.6px; color:var(--ink-2); margin:16px 0 7px; font-weight:600;}
.form-box label b{color:var(--dot);}
.form-box input[type=text],.form-box input[type=tel],.form-box textarea,.form-box select{
  width:100%; padding:12px 14px; border:1px solid var(--line); border-radius:10px; font-size:14.5px;
  font-family:inherit; color:var(--ink); background:#FCFDFF; transition:border-color .18s var(--ease), box-shadow .18s var(--ease), background .18s;
}
.form-box input:focus,.form-box textarea:focus,.form-box select:focus{
  outline:none; border-color:var(--brand-500); background:#fff; box-shadow:0 0 0 4px rgba(68,114,196,.13);
}
.form-box textarea{min-height:112px; resize:vertical;}
.form-box .submit{margin-top:24px; width:100%;}
/* 蜜罐字段：屏幕外隐藏，真人看不见也不会填，机器人会填 */
.form-box .hp{
  position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
  opacity:0; pointer-events:none; clip:rect(0 0 0 0);
}
.form-note{font-size:12.2px; color:var(--ink-3); margin-top:14px; text-align:center; line-height:1.7;}

/* 产品线选择（卡片式） */
.pick{display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:10px; margin-top:8px;}
.pick label{
  display:flex; align-items:center; gap:9px; margin:0; padding:11px 13px; border:1px solid var(--line);
  border-radius:10px; cursor:pointer; font-size:13.4px; font-weight:600; color:var(--ink-2);
  background:#FCFDFF; transition:.18s var(--ease); position:relative;
}
.pick label:hover{border-color:#C7D8F2; background:#fff;}
.pick input{position:absolute; opacity:0; pointer-events:none;}
.pick .dot{width:15px; height:15px; border:2px solid #C3CEDE; border-radius:50%; flex:0 0 15px; transition:.18s var(--ease);}
.pick input:checked + .dot{border-color:var(--brand-600); background:var(--brand-600); box-shadow:inset 0 0 0 3px #fff;}
.pick label:has(input:checked){border-color:var(--brand-500); background:#F2F7FF; color:var(--brand-700); box-shadow:0 0 0 3px rgba(68,114,196,.10);}

/* ---------- 下载条 / CTA 条 ---------- */
.dl-bar{
  background:linear-gradient(135deg,#EEF4FE,#E4EEFC); border:1px solid #D5E3F8; border-radius:var(--radius);
  padding:20px 26px; display:flex; flex-wrap:wrap; gap:14px; align-items:center; justify-content:space-between; margin:24px 0;
}
.dl-bar span{font-size:14px; color:var(--brand-800);}
.cta-band{
  background:
    radial-gradient(700px 300px at 12% 0%, rgba(0,168,232,.28), transparent 60%),
    linear-gradient(135deg,var(--brand-900),var(--brand-700));
  border-radius:20px; padding:44px 38px; color:#fff; text-align:center; box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:clamp(20px,2.6vw,26px); font-weight:800; margin-bottom:10px;}
/* CTA 卡片顶部一抹红短线，收束页面视线 */
.cta-band::before{
  content:""; display:block; width:34px; height:3px; border-radius:2px; margin:0 auto 18px;
  background:linear-gradient(90deg,var(--dot),var(--dot-warm));
}
.cta-band p{opacity:.86; font-size:14.6px; margin-bottom:26px; max-width:620px; margin-left:auto; margin-right:auto;}
.cta-band .btns{display:flex; gap:14px; justify-content:center; flex-wrap:wrap;}

/* 微信卡 */
.wechat-card{
  display:flex; gap:26px; align-items:center; justify-content:center; flex-wrap:wrap;
  background:#fff; border:1px solid var(--line); border-radius:18px; padding:28px 32px; max-width:720px; margin:0 auto;
  box-shadow:var(--shadow-sm);
}
.wechat-card img{width:190px; border:1px solid var(--line); border-radius:12px; padding:8px; background:#fff;}
.wechat-card .wx-info{text-align:left; min-width:220px;}
.wechat-card .wx-id{font-size:22px; font-weight:800; color:var(--brand-700); letter-spacing:.5px; margin:6px 0 10px; display:block;}
.wechat-card .wx-tip{font-size:13.4px; color:var(--ink-2);}
.copy-btn{
  margin-top:14px; display:inline-flex; align-items:center; gap:7px; padding:9px 18px; border-radius:999px;
  border:1px solid var(--brand-500); background:#fff; color:var(--brand-600); font-size:13.4px; font-weight:700; cursor:pointer;
  font-family:inherit; transition:.2s var(--ease);
}
.copy-btn:hover{background:var(--brand-600); color:#fff;}

/* ---------- 面包屑 ---------- */
.crumb{background:var(--surface-2); border-bottom:1px solid var(--line); font-size:13px; color:var(--ink-3);}
.crumb .container{padding-top:11px; padding-bottom:11px;}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{margin:0 7px; color:#B8C2D1;}

/* ---------- 右侧悬浮联系条 ---------- */
.float-rail{
  position:fixed; right:16px; top:50%; transform:translateY(-50%); z-index:70;
  display:flex; flex-direction:column; gap:8px;
}
.float-rail a,.float-rail button{
  width:52px; height:52px; border-radius:14px; background:#fff; border:1px solid var(--line);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:2px;
  color:var(--brand-700); font-size:10.5px; font-weight:700; cursor:pointer; box-shadow:var(--shadow-sm);
  transition:.22s var(--ease); font-family:inherit; text-align:center; line-height:1.15; padding:0;
}
.float-rail a:hover,.float-rail button:hover{transform:translateX(-3px); box-shadow:var(--shadow-md); color:var(--brand-700); border-color:#C7D8F2;}
.float-rail .primary{background:linear-gradient(135deg,var(--brand-600),var(--brand-500)); border-color:transparent; color:#fff;}
.float-rail .primary:hover{color:#fff;}
.float-rail svg{width:19px; height:19px;}
.float-rail .qr-pop{
  position:absolute; right:64px; top:50%; transform:translateY(-50%) scale(.94); transform-origin:right center;
  background:#fff; border:1px solid var(--line); border-radius:14px; padding:12px; box-shadow:var(--shadow-lg);
  opacity:0; pointer-events:none; transition:.24s var(--ease);
}
.float-rail .wx-wrap:hover .qr-pop{opacity:1; pointer-events:auto; transform:translateY(-50%) scale(1);}
.float-rail .qr-pop img{width:150px; border-radius:8px;}
.float-rail .qr-pop p{font-size:11.5px; color:var(--ink-2); text-align:center; margin-top:7px; white-space:nowrap;}

/* ---------- 移动端底部转化条 ---------- */
.mobile-cta{
  display:none; position:fixed; left:0; right:0; bottom:0; z-index:90;
  background:rgba(255,255,255,.96); backdrop-filter:blur(12px); border-top:1px solid var(--line);
  padding:9px 12px calc(9px + env(safe-area-inset-bottom));
  box-shadow:0 -4px 20px rgba(12,35,73,.10);
}
.mobile-cta .row{display:flex; gap:10px;}
.mobile-cta a{
  flex:1; display:flex; align-items:center; justify-content:center; gap:7px;
  padding:13px 10px; border-radius:12px; font-size:14.5px; font-weight:700;
}
.mobile-cta .m-wx{background:#F1F7FF; color:var(--brand-700); border:1px solid #D5E3F8;}
.mobile-cta .m-go{background:linear-gradient(135deg,var(--brand-600),var(--brand-500)); color:#fff;}
.mobile-cta svg{width:17px; height:17px;}

/* ---------- 页脚 ---------- */
.site-footer{background:linear-gradient(180deg,var(--brand-900),#0A1D3D); color:rgba(255,255,255,.82); padding:56px 0 26px; font-size:13.6px;}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:34px; margin-bottom:34px;}
.site-footer h4{
  color:#fff; font-size:14.5px; margin-bottom:14px; font-weight:700; letter-spacing:.5px;
  display:flex; align-items:center; gap:8px;
}
.site-footer h4::before{
  content:""; width:6px; height:6px; border-radius:50%; flex:0 0 6px;
  background:var(--dot); box-shadow:0 0 0 3px rgba(229,72,77,.24);
}
.site-footer .f-brand{font-size:17px; font-weight:800; color:#fff; margin-bottom:10px; display:flex; align-items:center; gap:9px;}
.site-footer .f-brand svg{width:30px; height:30px;}
.site-footer a{color:rgba(255,255,255,.82); display:inline-block; padding:3px 0;}
.site-footer a:hover{color:var(--cyan-400);}
.site-footer .f-line{line-height:2;}
.site-footer .f-note{font-size:12.4px; color:rgba(255,255,255,.55); margin-top:12px; line-height:1.8;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14); padding-top:20px; display:flex; flex-wrap:wrap; gap:10px;
  justify-content:space-between; align-items:center; font-size:12.4px; color:rgba(255,255,255,.62);
}
.footer-bottom a{color:rgba(255,255,255,.62); padding:0;}

/* ---------- 图片说明 ---------- */
.img-note{font-size:12px; color:var(--ink-3); text-align:center; margin-top:9px;}

/* ---------- 科研客户页（cases.html） ---------- */
.cp-h3{
  font-size:16px; font-weight:800; color:var(--brand-800); margin:30px 0 12px;
  padding-left:12px; border-left:4px solid var(--dot); line-height:1.35;
}
.cp-h3:first-of-type{margin-top:6px;}
.tbl-wrap{
  overflow-x:auto; -webkit-overflow-scrolling:touch;
  border:1px solid var(--line); border-radius:var(--radius); background:#fff; box-shadow:var(--shadow-xs);
}
.tbl-wrap table{min-width:600px; border-radius:var(--radius);}
.tbl-wrap td:last-child{white-space:nowrap; color:var(--ink-3); font-size:13px;}
.cp-note{
  margin-top:20px; padding:15px 18px; background:var(--surface-2); border-radius:var(--radius-sm);
  border-left:3px solid var(--dot); font-size:12.8px; color:var(--ink-2); line-height:1.8;
}
.cp-note b{color:var(--brand-800);}

/* ---------- 产品速览（图文并排） ---------- */
.ov{
  display:grid; grid-template-columns:1.02fr .98fr; gap:40px; align-items:center;
  padding-top:44px; margin-bottom:40px;
}
.ov .sec-eyebrow{margin-bottom:6px;}
.ov .sec-title{font-size:clamp(20px,2.4vw,26px); text-align:left; margin-bottom:8px;}
.ov .sec-sub{text-align:left; margin-bottom:6px; font-size:14.5px;}
.ov-list{list-style:none; margin:6px 0 22px; padding:0;}
.ov-list li{
  display:flex; gap:11px; align-items:flex-start; padding:11px 0;
  border-bottom:1px dashed var(--line-2); font-size:14.5px; color:var(--ink-2); line-height:1.7;
}
.ov-list li:last-child{border-bottom:none;}
.ov-list li svg{width:18px; height:18px; flex:0 0 18px; color:var(--brand-600); margin-top:4px;}
.ov-list li b{color:var(--ink);}
.ov-btns{display:flex; gap:12px; flex-wrap:wrap;}
.ov-media{margin:0;}
.ov-media img{width:100%; height:auto; border-radius:18px; box-shadow:var(--shadow-md);}
.ov-media figcaption{font-size:12px; color:var(--ink-3); text-align:center; margin-top:10px;}

/* ---------- 应用图集 ---------- */
.gallery{display:grid; grid-template-columns:1fr 1fr; gap:20px;}
.g-item{
  background:#fff; border:1px solid var(--line); border-radius:16px; overflow:hidden;
  box-shadow:var(--shadow-sm); transition:transform .3s var(--ease), box-shadow .3s var(--ease);
}
.g-item:hover{transform:translateY(-3px); box-shadow:var(--shadow-md);}
.g-item img{width:100%; aspect-ratio:4/3; object-fit:cover;}
.g-item figcaption{padding:13px 18px 16px; font-size:13.5px; color:var(--ink-2); line-height:1.65;}
.g-item figcaption b{display:block; color:var(--brand-700); font-size:14px; margin-bottom:3px;}
.g-item figcaption small{display:block; margin-top:4px; font-size:12px; color:var(--ink-3);}

/* ---------- 研发与品控图集（三列） ---------- */
.rd3{grid-template-columns:repeat(3,1fr); margin-top:6px;}
@media (max-width:900px){ .rd3{grid-template-columns:1fr 1fr;} }
@media (max-width:560px){ .rd3{grid-template-columns:1fr;} }

/* ---------- 404 ---------- */
.err-code{font-size:clamp(64px,14vw,120px); font-weight:800; line-height:1; letter-spacing:4px;
  background:linear-gradient(135deg,var(--brand-600),var(--cyan-500)); -webkit-background-clip:text; background-clip:text; color:transparent;}

/* ---------- 滚动动效 ---------- */
.reveal{opacity:0; transform:translateY(20px);}
.reveal.in{opacity:1; transform:none; transition:opacity .65s var(--ease), transform .65s var(--ease);}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed; right:16px; bottom:24px; z-index:70; width:46px; height:46px; border-radius:50%;
  background:#fff; border:1px solid var(--line); color:var(--brand-700); cursor:pointer; box-shadow:var(--shadow-md);
  display:flex; align-items:center; justify-content:center; opacity:0; pointer-events:none; transition:.25s var(--ease);
}
.to-top.show{opacity:1; pointer-events:auto;}
.to-top:hover{transform:translateY(-3px);}

/* ---------- 响应式 ---------- */
/* 导航项增至 10 条：901~1150px 区间压缩间距，避免溢出换行 */
@media (max-width:1150px) and (min-width:901px){
  .brand{font-size:17px; gap:8px;}
  .brand-mark{width:32px; height:32px; flex:0 0 32px;}
  .brand-txt small{font-size:9.5px; letter-spacing:.9px;}
  .nav-links a{padding:9px 8px; font-size:13.2px;}
  .nav-links a.cta{padding:9px 13px; margin-left:5px;}
}
@media (max-width:1080px){
  .footer-grid{grid-template-columns:1fr 1fr; gap:28px;}
}
@media (max-width:900px){
  .float-rail{display:none;}
  .mobile-cta{display:block;}
  body{padding-bottom:70px;}
  .to-top{bottom:84px;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute; left:0; right:0; top:100%; background:#fff; flex-direction:column; align-items:stretch;
    gap:0; padding:10px 16px 18px; border-bottom:1px solid var(--line); box-shadow:0 16px 34px rgba(12,35,73,.12);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:14px 12px; border-radius:10px; font-size:15.5px; border-bottom:1px solid var(--line-2);}
  .nav-links a:last-child{border-bottom:none;}
  .nav-links a.cta{margin:12px 0 0; justify-content:center; text-align:center; border-radius:12px;}
  .site-header{position:sticky;}
  .nav-bar{position:relative;}
  .hero{padding:64px 20px 58px;}
  .hero.page{padding:44px 20px 40px;}
  .hero.page .btns{justify-content:center;}
  .hero.page{text-align:center;}
  .hero.page .trust-bar{justify-content:center;}
  section{padding:48px 0;}
  .sec-head{margin-bottom:30px;}
  .ov{grid-template-columns:1fr; gap:24px; padding-top:36px; margin-bottom:34px;}
  .ov-media{order:-1;}
  .ov-media img{max-height:340px; object-fit:cover;}
  .gallery{gap:14px;}
}
@media (max-width:640px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr;}
  .p-card.plain p{min-height:0;}
  .flow-steps{grid-template-columns:1fr 1fr; gap:24px 12px;}
  .form-box{padding:24px 20px;}
  .cta-band{padding:32px 22px; border-radius:16px;}
  .wechat-card{padding:22px 18px; gap:18px;}
  .wechat-card .wx-info{text-align:center;}
  .dl-bar{flex-direction:column; align-items:flex-start;}
  .dl-bar .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr; gap:24px;}
  .hero .btns .btn{width:100%;}
  .stats{grid-template-columns:1fr 1fr;}
  .gallery{grid-template-columns:1fr;}
  .ov-list li{font-size:14px;}
  .ov-btns .btn{flex:1;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important; transition:none !important;}
  .reveal{opacity:1; transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 微信二维码浮层 ---------- */
.wx-modal{position:fixed; inset:0; z-index:120; display:flex; align-items:center; justify-content:center; opacity:0; pointer-events:none; transition:opacity .22s var(--ease);}
.wx-modal.show{opacity:1; pointer-events:auto;}
.wx-modal-mask{position:absolute; inset:0; background:rgba(9,20,40,.55); backdrop-filter:blur(3px); -webkit-backdrop-filter:blur(3px);}
.wx-modal-box{
  position:relative; background:#fff; border-radius:18px; padding:30px 34px 28px; text-align:center;
  box-shadow:var(--shadow-lg); transform:scale(.94); transition:transform .24s var(--ease); max-width:92vw;
}
.wx-modal.show .wx-modal-box{transform:scale(1);}
.wx-modal-box h4{font-size:17px; color:var(--brand-800); margin-bottom:16px; font-weight:800;}
.wx-modal-box img{width:220px; height:auto; border:1px solid var(--line); border-radius:12px; padding:8px; margin:0 auto;}
.wx-modal-id{font-size:14px; color:var(--ink-2); margin-top:13px;}
.wx-modal-id b{color:var(--brand-700);}
.wx-modal-tip{font-size:12.5px; color:var(--ink-3); margin-top:4px;}
.wx-modal-x{
  position:absolute; right:12px; top:10px; width:32px; height:32px; border:none; background:var(--surface-2);
  border-radius:50%; font-size:20px; line-height:1; color:var(--ink-2); cursor:pointer; transition:.18s var(--ease);
}
.wx-modal-x:hover{background:var(--line); color:var(--ink);}

/* ==========================================================================
   磁流体专站增补 v3 —— 规格表、术语卡、选型流程、提示框
   ========================================================================== */

/* 页内锚点导航 */
.anchor-nav{display:flex; flex-wrap:wrap; gap:8px; margin:0 0 4px;}
.anchor-nav a{
  font-size:13.5px; padding:7px 15px; border:1px solid var(--line); border-radius:999px;
  background:#fff; color:var(--ink-2); font-weight:600; transition:.18s var(--ease);
}
.anchor-nav a:hover{border-color:var(--brand-500); color:var(--brand-600); background:var(--surface-2);}

/* 小标签 */
.badge{display:inline-flex; align-items:center; gap:5px; font-size:12px; font-weight:700; padding:3px 10px; border-radius:999px; background:var(--surface-2); color:var(--brand-700); border:1px solid var(--line);}
.badge-dot{background:#fff; color:var(--dot-deep); border-color:#F6CBCE;}
.badge-ok{background:#EEF7F0; color:var(--ok); border-color:#CDE6D3;}
.badge-line{background:#fff; color:var(--ink-2);}

/* 规格表 */
.spec-tbl{font-size:13.8px;}
.spec-tbl th,.spec-tbl td{padding:9px 13px;}
.spec-tbl td.n{font-variant-numeric:tabular-nums; font-weight:700; color:var(--brand-800);}
.spec-tbl tr.grp td{background:var(--surface-2); font-weight:800; color:var(--brand-700); font-size:13.5px; letter-spacing:.3px;}
.spec-tbl tr.hi-row td{background:#FFF7F7;}
.mono{font-variant-numeric:tabular-nums; letter-spacing:.2px;}

/* 键值对 */
.kv{display:grid; grid-template-columns:repeat(2,1fr); gap:0 26px; margin:10px 0 4px;}
.kv .k{display:flex; justify-content:space-between; gap:12px; border-bottom:1px dashed var(--line); padding:8px 0; font-size:14px;}
.kv .k span{color:var(--ink-2);}
.kv .k b{color:var(--brand-800); font-variant-numeric:tabular-nums;}

/* 提示框 */
.callout{border-radius:var(--radius-sm); padding:15px 18px; margin:15px 0; border:1px solid var(--line); background:#FBFCFE; font-size:14.5px; line-height:1.8;}
.callout.warn{border-color:#F1C9C4; background:#FEF7F6; border-left:4px solid var(--dot);}
.callout.ok{border-color:#CDE6D3; background:#F5FBF7; border-left:4px solid var(--ok);}
.callout .ct{font-weight:800; color:var(--brand-700); margin-bottom:5px; display:block;}
.callout.warn .ct{color:var(--dot-deep);}
.callout.ok .ct{color:var(--ok);}

/* 系列卡 */
.series-card{border:1px solid var(--line); border-radius:var(--radius); padding:20px 22px; background:#fff; box-shadow:var(--shadow-sm);}
.series-card h3{margin-top:0; font-size:17px; color:var(--brand-800);}
.series-card .sc-top{display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:10px; flex-wrap:wrap;}

/* 选型流程 */
.stepflow{display:grid; grid-template-columns:repeat(6,1fr); gap:9px; margin:18px 0 8px;}
.sf{border:1px solid var(--line); border-radius:var(--radius-sm); padding:13px 11px; background:#fff; position:relative; font-size:13px;}
.sf b{display:block; color:var(--brand-700); font-size:13.5px; margin-bottom:4px;}
.sf i{font-style:normal; color:var(--ink-3); font-size:12px; line-height:1.5; display:block;}
.sf .n{position:absolute; right:9px; top:8px; font-size:11px; font-weight:800; color:var(--dot);}

/* 术语小卡 */
.term{border:1px solid var(--line); border-radius:var(--radius-sm); padding:14px 16px; background:#fff;}
.term b{display:block; color:var(--brand-800); font-size:14.5px; margin-bottom:5px;}
.term p{font-size:13.8px; color:var(--ink-2); line-height:1.7; margin:0;}

.note-sm{font-size:13px; color:var(--ink-2); line-height:1.7; margin-top:10px;}
.tight-list{margin:6px 0 6px 20px;}
.tight-list li{margin-bottom:5px; line-height:1.7;}

@media (max-width:900px){
  .stepflow{grid-template-columns:repeat(2,1fr);}
  .kv{grid-template-columns:1fr;}
  .spec-tbl{font-size:13px;}
  .spec-tbl th,.spec-tbl td{padding:8px 10px;}
}

/* ==========================================================================
   合作单位名录 v4
   ========================================================================== */

/* 浅色统计条（用于内页白底） */
.cli-stats{display:grid; grid-template-columns:repeat(4,1fr); gap:14px;}
@media (max-width:740px){ .cli-stats{grid-template-columns:repeat(2,1fr);} }
.cli-stat{
  position:relative; overflow:hidden; background:#fff; border:1px solid var(--line);
  border-radius:var(--radius-sm); padding:18px 16px 16px; text-align:center; box-shadow:var(--shadow-xs);
}
.cli-stat::before{
  content:""; position:absolute; left:0; top:0; width:100%; height:3px;
  background:linear-gradient(90deg,var(--brand-600),var(--cyan-500));
}
.cli-stat b{display:block; font-size:24px; font-weight:800; color:var(--brand-700); line-height:1.28; font-variant-numeric:tabular-nums; letter-spacing:.4px;}
.cli-stat span{display:block; font-size:12.5px; color:var(--ink-2); margin-top:5px;}

/* 区域分组 */
.cli-region{margin-bottom:30px;}
.cli-region:last-of-type{margin-bottom:0;}
.cli-region-head{display:flex; align-items:baseline; gap:12px; flex-wrap:wrap; margin-bottom:15px; padding-bottom:10px; border-bottom:1px solid var(--line);}
.cli-region-head h3{font-size:15.5px; font-weight:800; color:var(--brand-800); letter-spacing:.2px; position:relative; padding-left:13px;}
.cli-region-head h3::before{
  content:""; position:absolute; left:0; top:50%; transform:translateY(-50%);
  width:4px; height:15px; border-radius:2px; background:linear-gradient(180deg,var(--dot),var(--dot-warm));
}
.cli-region-head span{font-size:12.5px; color:var(--ink-3);}

/* 单位卡：logo 位 + 校名 */
.cli-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:13px;}
@media (max-width:1000px){ .cli-grid{grid-template-columns:repeat(3,1fr);} }
@media (max-width:760px){ .cli-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:420px){ .cli-grid{grid-template-columns:1fr;} }

.cli{
  display:flex; align-items:center; gap:12px; min-width:0;
  background:#fff; border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:13px 14px; box-shadow:var(--shadow-xs);
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.cli:hover{transform:translateY(-3px); box-shadow:var(--shadow-sm); border-color:#C7D8F2;}
.cli-logo{
  position:relative; width:44px; height:44px; flex:0 0 44px; border-radius:11px; overflow:hidden;
  background:linear-gradient(135deg,#F3F7FD,#E6EFFB); border:1px solid #DCE7F7;
  display:flex; align-items:center; justify-content:center;
}
.cli-mono{font-size:13.5px; font-weight:800; color:var(--brand-600); letter-spacing:.4px; line-height:1;}
/* 单位标识图（可选）：放到 images/clients/ 后由 main.js 自动挂载，加载失败则静默保留文字标识 */
.cli-logo img{position:absolute; inset:0; margin:auto; width:auto; height:auto; max-width:78%; max-height:78%; object-fit:contain; background:#fff; border-radius:4px;}
.cli-txt{min-width:0;}
.cli-txt b{display:block; font-size:13.6px; font-weight:700; color:var(--brand-800); line-height:1.42;}
.cli-txt em{display:block; font-style:normal; font-size:11.6px; color:var(--ink-3); margin-top:4px; letter-spacing:.2px;}

/* 名录页底部说明 */
.cli-disclaim{font-size:12.6px; color:var(--ink-3); line-height:1.75; margin-top:14px; padding-top:12px; border-top:1px dashed var(--line);}

/* 名录区块（首页/关于页内嵌）：自带上下边界，插在任何位置都自成一节 */
section.cli-band{
  background:linear-gradient(180deg,#FFFFFF 0%,#F7FAFE 42%,#FFFFFF 100%);
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
}
.cli-more{
  display:flex; align-items:center; gap:16px; flex-wrap:wrap; justify-content:space-between;
  margin-top:18px; padding-top:15px; border-top:1px dashed var(--line);
  font-size:13.4px; color:var(--ink-2);
}

/* 名录紧凑行式（关于页用） */
.cli-lines{display:grid;}
.cli-lines > div{display:flex; gap:18px; align-items:baseline; padding:13px 0; border-bottom:1px dashed var(--line);}
.cli-lines > div:last-child{border-bottom:0;}
.cli-lines b{flex:0 0 134px; font-size:13.6px; font-weight:700; color:var(--brand-800);}
.cli-lines span{flex:1; font-size:14px; color:var(--ink-2); line-height:1.72;}
@media (max-width:640px){
  .cli-lines > div{flex-direction:column; gap:5px;}
  .cli-lines b{flex:none;}
}

/* ---------- 语言切换（中英双站）2026-10-07 ---------- */
.lang-switch{
  display:inline-flex; align-items:center; gap:2px; flex:0 0 auto;
  border:1px solid var(--line); border-radius:999px; padding:3px; margin-left:12px;
}
.lang-switch a{
  display:inline-block; padding:4px 11px; border-radius:999px;
  font-size:12.6px; font-weight:600; color:var(--ink-3);
  text-decoration:none; line-height:1.4; transition:.16s;
}
.lang-switch a.on{background:var(--brand-800); color:#fff;}
.lang-switch a:hover:not(.on){color:var(--brand-700); background:var(--surface-2);}
@media (max-width:1080px){
  .lang-switch{margin-left:auto; order:2;}
}
@media (max-width:900px){
  .lang-switch{margin-left:0; order:0; align-self:flex-start; margin-top:6px;}
}

/* ---------- 数据条 .stats（2026-10-07 补全：原样式仅适用于深色 hero 内，白底区块会看不见） ---------- */
.stats{
  display:grid; grid-template-columns:repeat(4,1fr); gap:8px;
  margin:8px 0 0; padding:26px 0 4px;
}
.stats .stat{text-align:center; padding:0 10px; border-right:1px dashed var(--line);}
.stats .stat:last-child{border-right:0;}
.stats .stat b{
  display:block; font-size:clamp(26px,3.4vw,38px); font-weight:800;
  line-height:1.15; letter-spacing:-.5px; color:var(--brand-700);
}
.stats .stat span{
  display:block; margin-top:7px; font-size:13.2px; line-height:1.6; color:var(--ink-2);
}
/* 深色底（hero 内）时反白 */
.hero .stats .stat{border-right-color:rgba(255,255,255,.22);}
.hero .stats .stat b{color:#fff;}
.hero .stats .stat span{color:rgba(255,255,255,.82);}
@media (max-width:720px){
  .stats{grid-template-columns:repeat(2,1fr); gap:20px 8px; padding-top:20px;}
  .stats .stat:nth-child(2n){border-right:0;}
  .stats .stat:nth-child(n+3){padding-top:16px; border-top:1px dashed var(--line);}
  .hero .stats .stat:nth-child(n+3){border-top-color:rgba(255,255,255,.22);}
}
@media print{
  .stats{break-inside:avoid;}
}

/* ---------- 打印 ---------- */
@media print{
  .site-header,.float-rail,.mobile-cta,.to-top,.hero .btns,.wx-modal{display:none !important;}
  .lang-switch{display:none !important;}
  .cli{break-inside:avoid; box-shadow:none;}
  .cli:hover{transform:none; box-shadow:none;}
  body{font-size:12pt;}
}