@charset "utf-8";
/* ============================================================
   正兴电热合金 · 整站设计系统 v2
   ZXDRHJ Design System — 2026
   兼容: Chrome/Edge/Safari(含 iOS)/Firefox/微信/QQ浏览器/国产双核
   适配: 320px → 2560px（手机 / 平板 / 笔记本 / 桌面 / 大屏）
   ============================================================ */

/* ---------- 字体 ---------- */
@font-face{font-family:"NS";src:url("../barlow-1.woff2") format("woff2");font-weight:400;font-display:swap;}
@font-face{font-family:"BC";src:url("../barlow-2.woff2") format("woff2");font-weight:600;font-display:swap;}
@font-face{font-family:"BC";src:url("../barlow-3.woff2") format("woff2");font-weight:700;font-display:swap;}

:root{
  /* 品牌色（取自 logo） */
  --ink:#0B0E12;
  --ink-2:#151B22;
  --ink-3:#232C36;
  --red:#D3202F;
  --red-d:#A91824;
  --ember:#F0453A;
  --teal:#12888B;
  --steel:#8A97A6;

  /* 版面 */
  --paper:#FFFFFF;
  --paper-2:#F4F5F7;
  --paper-3:#E9EBEF;
  --line:rgba(11,14,18,.10);
  --line-2:rgba(11,14,18,.06);
  --on-dark:#F2F4F7;
  --on-dark-2:rgba(242,244,247,.62);

  /* 排版 */
  --fs-body:clamp(14px,.42vw + 12.4px,16.5px);
  --fs-lead:clamp(15px,.55vw + 12.4px,19px);
  --fs-h1:clamp(28px,3.2vw + 14px,62px);
  --fs-h2:clamp(23px,1.9vw + 14px,42px);
  --fs-h3:clamp(17px,.5vw + 13px,23px);
  --fs-h4:clamp(15px,.3vw + 12.6px,18px);
  --fs-xs:clamp(11.5px,.15vw + 10.8px,13px);
  --lh:1.75;

  /* 栅格 */
  --wrap:1340px;
  --gutter:clamp(16px,3.2vw,40px);
  --sect:clamp(48px,6.4vw,116px);

  /* 形状 */
  --r:2px;
  --r-lg:3px;
  --shadow:0 18px 44px -26px rgba(11,14,18,.34);
  --shadow-s:0 6px 18px -12px rgba(11,14,18,.32);

  --ease:cubic-bezier(.22,.61,.36,1);
  --hdr-h:82px;
}

/* ---------- 主题默认（T1 石墨钢印） ---------- */
:root,[data-theme="1"]{
  --accent:var(--red);
  --accent-2:var(--ember);
  --accent-soft:rgba(211,32,47,.08);
  --hero-bg:#0B0E12;
  --hero-ink:#FFFFFF;
  --band:var(--ink);
  --hdr-bg:rgba(255,255,255,.92);
  --hdr-ink:var(--ink);
  --card-bg:#FFFFFF;
  --card-bd:rgba(11,14,18,.10);
  --btn-r:2px;
  --num-font:"BC","NS",sans-serif;
}

/* ---------- 重置 ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"NS","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:var(--fs-body);
  line-height:var(--lh);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  -webkit-tap-highlight-color:transparent;
  overflow-x:hidden;
}
img,svg,video{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;-webkit-appearance:none;}
ul,ol,dl,dd,figure,p,h1,h2,h3,h4,h5{margin:0;padding:0;}
li{list-style:none;}
h1,h2,h3,h4{font-weight:800;line-height:1.18;letter-spacing:-.01em;text-wrap:balance;word-break:break-word;}
table{border-collapse:collapse;width:100%;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

/* ---------- 通用 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter);}
.wrap-n{max-width:1180px;}
.sect{padding:var(--sect) 0;position:relative;}
.sect-s{padding:calc(var(--sect) * .62) 0;}
.bg-2{background:var(--paper-2);}
.bg-ink{background:var(--band);color:var(--on-dark);}
.bg-ink h1,.bg-ink h2,.bg-ink h3,.bg-ink h4{color:#fff;}
.bg-ink .lead,.bg-ink p{color:var(--on-dark-2);}
.mt-0{margin-top:0!important;}
.center{text-align:center;}
.hide{display:none!important;}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:var(--fs-xs);font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);line-height:1;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);display:block;flex:none;}
.eyebrow .num{font-family:var(--num-font);font-size:1.15em;letter-spacing:.04em;opacity:.9;}
.bg-ink .eyebrow{color:var(--accent-2);}
.bg-ink .eyebrow::before{background:var(--accent-2);}

.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:clamp(18px,3vw,56px);margin-bottom:clamp(24px,3.2vw,54px);}
.sec-head .txt{max-width:760px;}
.sec-head h2{font-size:var(--fs-h2);margin:14px 0 0;}
.sec-head .lead{margin-top:14px;font-size:var(--fs-lead);color:#4A5563;line-height:1.72;max-width:660px;}
.sec-head .more{flex:none;}

.lead{font-size:var(--fs-lead);line-height:1.75;color:#46505C;}
p{color:#3C4652;}

.rule{height:1px;background:var(--line);border:0;margin:0;}
.rule-accent{height:3px;background:var(--accent);border:0;width:56px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 clamp(18px,2vw,30px);
  border-radius:var(--btn-r);font-weight:700;font-size:clamp(13.5px,.28vw,15.5px);
  letter-spacing:.02em;line-height:1;white-space:nowrap;
  transition:transform .25s var(--ease),background .25s,color .25s,border-color .25s;
  position:relative;overflow:hidden;
}
.btn svg{width:16px;height:16px;flex:none;}
.btn-p{background:var(--accent);color:#fff;border:1px solid var(--accent);}
.btn-p:hover{background:var(--red-d);border-color:var(--red-d);transform:translateY(-2px);}
.btn-g{background:transparent;color:var(--ink);border:1px solid rgba(11,14,18,.22);}
.btn-g:hover{border-color:var(--ink);background:var(--ink);color:#fff;transform:translateY(-2px);}
.bg-ink .btn-g,.hero .btn-g{color:#fff;border-color:rgba(255,255,255,.32);}
.bg-ink .btn-g:hover,.hero .btn-g:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn-w{background:#fff;color:var(--ink);border:1px solid #fff;}
.btn-w:hover{background:var(--accent);color:#fff;border-color:var(--accent);transform:translateY(-2px);}

.tlink{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:clamp(13px,.28vw,15px);color:var(--ink);}
.tlink::after{content:"";width:22px;height:1px;background:currentColor;transition:width .3s var(--ease);}
.tlink:hover{color:var(--accent);}
.tlink:hover::after{width:34px;}

/* 编号角标 */
.tag-n{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:26px;height:22px;padding:0 7px;background:var(--accent);color:#fff;
  font-family:var(--num-font);font-weight:700;font-size:12px;letter-spacing:.06em;border-radius:1px;
}

/* ============================================================
   顶部工具条
   ============================================================ */
.topbar{
  background:var(--ink);color:rgba(242,244,247,.72);
  font-size:var(--fs-xs);height:38px;display:flex;align-items:center;
  position:relative;z-index:60;
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:nowrap;min-width:0;}
.topbar .l,.topbar .r{display:flex;align-items:center;gap:clamp(10px,1.5vw,22px);flex:0 0 auto;flex-wrap:nowrap;min-width:0;}
.topbar .l>span,.topbar .r>a,.topbar .r>span{white-space:nowrap;}
/* 顶栏优先级收敛：窄屏先舍弃次要信息，避免文字竖排换行 */
@media(max-width:1560px){
  .topbar .l>span:nth-child(5),.topbar .l>em:nth-child(4){display:none;}
}
@media(max-width:1366px){
  .topbar .r>a[href^="mailto"]{display:none;}
}
@media(max-width:1200px){
  .topbar .l>span:nth-child(3),.topbar .l>em:nth-child(2){display:none;}
}
.topbar a{display:inline-flex;align-items:center;gap:6px;transition:color .2s;}
.topbar a:hover{color:#fff;}
.topbar em{font-style:normal;color:rgba(242,244,247,.34);}
.topbar strong{color:#fff;font-family:var(--num-font);font-size:1.24em;letter-spacing:.02em;}
.topbar .dot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.28);}

/* ============================================================
   页头 / 导航
   ============================================================ */
.hdr{
  position:sticky;top:0;z-index:50;
  background:var(--hdr-bg);color:var(--hdr-ink);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:saturate(1.6) blur(14px);
  backdrop-filter:saturate(1.6) blur(14px);
  transition:box-shadow .3s,border-color .3s;
}
.hdr.is-stuck{box-shadow:0 10px 30px -22px rgba(11,14,18,.5);}
.hdr .wrap{display:flex;align-items:center;gap:clamp(14px,2.2vw,34px);height:var(--hdr-h);}

.brand{display:flex;align-items:center;gap:11px;flex:none;}
.brand img{height:clamp(40px,3.4vw,52px);width:auto;}
.brand .lg-w,.drawer .dh .lg-w{display:none;}
[data-theme="2"] .brand .lg-d,[data-theme="5"] .brand .lg-d,
[data-theme="2"] .drawer .dh .lg-d,[data-theme="5"] .drawer .dh .lg-d{display:none;}
[data-theme="2"] .brand .lg-w,[data-theme="5"] .brand .lg-w,
[data-theme="2"] .drawer .dh .lg-w,[data-theme="5"] .drawer .dh .lg-w{display:block;}
.brand .wm{display:none;}

/* 导航按内容取宽，不再被 flex 压缩——避免最右一项（联系我们）被裁掉 */
.nav{flex:0 0 auto;min-width:0;}
.hdr .cta{margin-left:auto;}
.nav>ul{display:flex;align-items:stretch;gap:clamp(2px,.5vw,10px);}
.nav>ul>li{position:relative;}
.nav>ul>li>a{
  display:flex;align-items:center;height:var(--hdr-h);padding:0 clamp(7px,.72vw,12px);
  font-weight:700;font-size:clamp(14.6px,.32vw,16.4px);letter-spacing:.005em;white-space:nowrap;
  color:var(--hdr-ink);position:relative;transition:color .2s;
}
.nav>ul>li>a::after{
  content:"";position:absolute;left:clamp(7px,.72vw,12px);right:clamp(7px,.72vw,12px);bottom:20px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.nav>ul>li:hover>a,.nav>ul>li.is-on>a{color:var(--accent);}
.nav>ul>li:hover>a::after,.nav>ul>li.is-on>a::after{transform:scaleX(1);}

.nav .sub{
  position:absolute;top:100%;left:0;min-width:214px;background:#fff;
  border:1px solid var(--line);border-top:2px solid var(--accent);
  box-shadow:var(--shadow);padding:10px 0;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
  z-index:5;
}
.nav>ul>li:hover .sub,.nav>ul>li.is-open .sub{opacity:1;visibility:visible;transform:translateY(0);}
/* 1024–1280：收紧导航内距与字号，保证 8 个一级栏目 + 报价按钮不折行 */
/* 大屏：导航按内容取宽后，收紧列间距，保证右端按钮与正文右边界对齐 */
@media(min-width:1600px){
  .nav>ul{gap:4px;}
  .nav>ul>li>a{padding:0 9px;}
}

@media(max-width:1280px){
  .hdr .wrap{gap:clamp(9px,1.1vw,16px);}
  .nav>ul{gap:0;}
  .nav>ul>li>a{padding:0 clamp(6px,.6vw,10px);font-size:clamp(13px,.85vw + 5.4px,14.6px);}
}
.nav .sub a{
  display:block;padding:9px 20px;font-size:13.5px;font-weight:500;color:#39424D;
  transition:background .18s,color .18s,padding .18s;
}
.nav .sub a:hover{background:var(--accent-soft);color:var(--accent);padding-left:26px;}

.hdr .cta{display:flex;align-items:center;gap:10px;flex:none;}
.hdr .tel{display:none;}

/* 汉堡 */
.burger{
  display:none;width:44px;height:44px;flex:none;
  align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r);
}
.burger span{display:block;width:19px;height:2px;background:currentColor;position:relative;transition:background .2s;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:19px;height:2px;background:currentColor;
  transition:transform .28s var(--ease);
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
body.mopen .burger span{background:transparent;}
body.mopen .burger span::before{transform:translateY(6px) rotate(45deg);}
body.mopen .burger span::after{transform:translateY(-6px) rotate(-45deg);}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:70;display:none;
  background:rgba(11,14,18,.5);opacity:0;transition:opacity .3s;
}
.drawer.on{display:block;opacity:1;}
.drawer .panel{
  position:absolute;right:0;top:0;bottom:0;width:min(86vw,360px);background:#fff;
  transform:translateX(100%);transition:transform .34s var(--ease);
  display:flex;flex-direction:column;overflow-y:auto;-webkit-overflow-scrolling:touch;
  padding-bottom:env(safe-area-inset-bottom);
}
.drawer.on .panel{transform:translateX(0);}
.drawer .dh{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);}
.drawer .dh img{height:30px;width:auto;}
.drawer .close{width:40px;height:40px;display:flex;align-items:center;justify-content:center;font-size:26px;line-height:1;color:#6B7683;}
.drawer nav{padding:6px 0 12px;}
.drawer nav>a,.drawer nav .grp>button{
  display:flex;align-items:center;justify-content:space-between;width:100%;text-align:left;
  padding:15px 20px;font-weight:700;font-size:15.5px;border-bottom:1px solid var(--line-2);color:var(--ink);
}
.drawer nav .grp>button::after{content:"+";font-weight:400;font-size:19px;color:#9AA5B1;transition:transform .25s;}
.drawer nav .grp.on>button::after{transform:rotate(45deg);color:var(--accent);}
.drawer nav .grp .kid{display:none;background:var(--paper-2);}
.drawer nav .grp.on .kid{display:block;}
.drawer nav .kid a{display:block;padding:12px 20px 12px 34px;font-size:14px;color:#4A5563;border-bottom:1px solid var(--line-2);}
.drawer .df{padding:16px 20px;background:var(--ink);color:#fff;margin-top:auto;}
.drawer .df .t{font-size:11.5px;color:rgba(255,255,255,.5);letter-spacing:.14em;text-transform:uppercase;}
.drawer .df .p{font-family:var(--num-font);font-size:25px;font-weight:700;line-height:1.3;margin:4px 0 12px;}
.drawer .df .bs{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
.drawer .df .bs a{display:flex;align-items:center;justify-content:center;gap:6px;height:42px;font-size:13.5px;font-weight:700;border:1px solid rgba(255,255,255,.24);border-radius:2px;}
.drawer .df .bs a.p{background:var(--accent);border-color:var(--accent);}

/* ============================================================
   Hero
   ============================================================ */
.hero{
  position:relative;background:var(--hero-bg);color:var(--hero-ink);
  overflow:hidden;isolation:isolate;
}
.hero::before{content:none;}
.hero .hm-bgl{position:absolute;inset:0;z-index:-1;overflow:hidden;}
.hero .hm-bgl img{width:100%;height:100%;object-fit:cover;display:block;
  opacity:.34;filter:grayscale(.35) contrast(1.08);}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(102deg,rgba(11,14,18,.97) 0%,rgba(11,14,18,.86) 42%,rgba(11,14,18,.42) 72%,rgba(11,14,18,.62) 100%);
}
.hero .wrap{position:relative;z-index:1;padding-top:clamp(38px,5.4vw,84px);padding-bottom:clamp(34px,4.6vw,74px);}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:clamp(24px,4vw,66px);align-items:center;}
.hero h1{
  font-size:var(--fs-h1);line-height:1.1;letter-spacing:-.02em;color:#fff;
  margin:clamp(14px,1.6vw,22px) 0 0;
}
.hero h1 .hl{color:var(--accent-2);position:relative;display:inline-block;}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.1em;background:var(--accent);opacity:.5;}
.hero .sub{
  margin-top:clamp(14px,1.8vw,24px);font-size:var(--fs-lead);line-height:1.72;
  color:rgba(255,255,255,.76);max-width:540px;
}
.hero .acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:clamp(22px,2.6vw,36px);}
.hero .micro{display:flex;flex-wrap:wrap;gap:clamp(12px,2vw,30px);margin-top:clamp(22px,2.6vw,34px);padding-top:clamp(16px,2vw,24px);border-top:1px solid rgba(255,255,255,.14);}
.hero .micro div{display:flex;align-items:baseline;gap:7px;font-size:var(--fs-xs);color:rgba(255,255,255,.56);}
.hero .micro b{font-family:var(--num-font);font-size:clamp(20px,2vw,29px);color:#fff;font-weight:700;line-height:1;}
.hero .micro i{font-style:normal;color:var(--accent-2);font-weight:700;}

/* 右侧视觉 */
.hero-vis{position:relative;}
.hero-vis .frame{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:#0f1319;
  box-shadow:0 40px 90px -40px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.09);
}
.hero-vis .frame img{width:100%;aspect-ratio:4/3.35;object-fit:cover;filter:contrast(1.04) brightness(1.04);}
.hero-vis .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(211,32,47,.10) 0%,transparent 52%,rgba(11,14,18,.34) 100%);
}
.hero-vis .badge{
  position:absolute;left:clamp(-8px,-.6vw,0px);bottom:clamp(16px,2.4vw,34px);
  background:#fff;color:var(--ink);padding:clamp(12px,1.4vw,18px) clamp(14px,1.8vw,24px);
  border-left:3px solid var(--accent);box-shadow:0 18px 40px -18px rgba(0,0,0,.7);
  min-width:180px;
}
.hero-vis .badge .k{font-family:var(--num-font);font-size:clamp(24px,2.6vw,36px);font-weight:700;line-height:1;color:var(--accent);}
.hero-vis .badge .k small{font-size:.44em;font-weight:700;margin-left:2px;color:var(--ink);}
.hero-vis .badge .l{font-size:var(--fs-xs);color:#5A6672;margin-top:5px;letter-spacing:.02em;}

/* Hero 数据条 */
.hero-strip{position:relative;z-index:1;border-top:1px solid rgba(255,255,255,.13);background:rgba(0,0,0,.22);}
.hero-strip .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;}
.hero-strip .it{padding:clamp(14px,1.8vw,24px) 0;position:relative;}
.hero-strip .it+.it{border-left:1px solid rgba(255,255,255,.1);padding-left:clamp(12px,2vw,30px);}
.hero-strip .v{font-family:var(--num-font);font-size:clamp(22px,2.3vw,34px);font-weight:700;color:#fff;line-height:1;letter-spacing:-.01em;}
.hero-strip .v small{font-size:.5em;margin-left:3px;color:var(--accent-2);}
.hero-strip .t{font-size:var(--fs-xs);color:rgba(255,255,255,.5);margin-top:7px;letter-spacing:.04em;}

/* 内页 banner */
.pghero{
  position:relative;background:var(--hero-bg);color:#fff;overflow:hidden;isolation:isolate;
}
.pghero::before{content:none;}
.pghero .pg-bgl{position:absolute;inset:0;z-index:-1;overflow:hidden;}
.pghero .pg-bgl img{width:100%;height:100%;object-fit:cover;display:block;opacity:.26;filter:grayscale(.5);}
.pghero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(96deg,rgba(11,14,18,.96),rgba(11,14,18,.72) 58%,rgba(11,14,18,.85));
}
.pghero .wrap{padding-top:clamp(28px,3.6vw,54px);padding-bottom:clamp(26px,3.4vw,50px);position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:7px;font-size:var(--fs-xs);color:rgba(255,255,255,.52);}
.crumb a:hover{color:#fff;}
.crumb span{opacity:.5;}
.pghero h1{font-size:clamp(24px,2.4vw + 12px,44px);color:#fff;margin:clamp(10px,1.4vw,16px) 0 0;letter-spacing:-.015em;}
.pghero .d{margin-top:12px;font-size:var(--fs-lead);color:rgba(255,255,255,.66);max-width:720px;line-height:1.7;}
.pghero .meta{display:flex;flex-wrap:wrap;gap:clamp(10px,2vw,28px);margin-top:clamp(16px,2vw,26px);}
.pghero .meta div{font-size:var(--fs-xs);color:rgba(255,255,255,.6);display:flex;align-items:center;gap:7px;}
.pghero .meta b{font-family:var(--num-font);font-size:clamp(17px,1.6vw,23px);color:#fff;}

/* ============================================================
   产品卡
   ============================================================ */
.pgrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(12px,1.6vw,24px);}
.pcard{
  background:var(--card-bg);border:1px solid var(--card-bd);border-radius:var(--r);
  overflow:hidden;display:flex;flex-direction:column;position:relative;
  transition:transform .34s var(--ease),box-shadow .34s var(--ease),border-color .34s;
}
.pcard:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent;}
.pcard .ph{position:relative;background:#F1F2F4;overflow:hidden;aspect-ratio:1/1;}
.pcard .ph img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease);}
.pcard:hover .ph img{transform:scale(1.055);}
.pcard .badge{
  position:absolute;left:0;top:0;background:var(--accent);color:#fff;
  font-size:11px;font-weight:700;letter-spacing:.08em;padding:5px 9px;line-height:1;
}
.pcard .body{padding:clamp(13px,1.4vw,21px);display:flex;flex-direction:column;gap:8px;flex:1;}
.pcard h3{font-size:var(--fs-h4);font-weight:800;line-height:1.36;}
.pcard h3 a:hover{color:var(--accent);}
.pcard .spec{font-size:var(--fs-xs);color:#6B7683;line-height:1.6;display:flex;flex-wrap:wrap;gap:4px 12px;}
.pcard .spec em{font-style:normal;color:#9AA5B1;}
.pcard .foot{margin-top:auto;padding-top:10px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line-2);}
.pcard .foot .arw{width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:#8A97A6;transition:.28s var(--ease);}
.pcard:hover .foot .arw{background:var(--accent);border-color:var(--accent);color:#fff;transform:rotate(-45deg);}

/* 产品分类横条 */
.catbar{display:flex;flex-wrap:wrap;gap:8px;}
.catbar a{
  display:inline-flex;align-items:center;gap:7px;height:42px;padding:0 16px;
  border:1px solid var(--line);border-radius:var(--r);font-size:13.5px;font-weight:700;color:#3C4652;
  background:#fff;transition:.22s;
}
.catbar a:hover{border-color:var(--accent);color:var(--accent);}
.catbar a.on{background:var(--ink);border-color:var(--ink);color:#fff;}
.catbar a .n{font-family:var(--num-font);font-size:12px;opacity:.5;}

/* ============================================================
   数据 / 实力
   ============================================================ */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);}
.stats .it{background:var(--paper);padding:clamp(18px,2.4vw,32px);}
.bg-ink .stats,.bg-ink.stats{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.12);}
.bg-ink .stats .it{background:var(--band);}
.stats .v{font-family:var(--num-font);font-size:clamp(28px,3.4vw,48px);font-weight:700;line-height:1;letter-spacing:-.02em;color:var(--ink);}
.stats .v small{font-size:.42em;font-weight:700;color:var(--accent);margin-left:3px;letter-spacing:0;}
.bg-ink .stats .v{color:#fff;}
.stats .t{font-size:var(--fs-xs);color:#6B7683;margin-top:9px;letter-spacing:.03em;}
.bg-ink .stats .t{color:rgba(255,255,255,.5);}
.stats .d{font-size:12.5px;color:#8A97A6;margin-top:6px;line-height:1.55;}

/* 特性格 */
.feats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(12px,1.6vw,22px);}
.feat{
  padding:clamp(18px,2.2vw,30px);background:#fff;border:1px solid var(--line);
  border-top:2px solid var(--ink);transition:.3s var(--ease);
}
.feat:hover{border-top-color:var(--accent);transform:translateY(-3px);box-shadow:var(--shadow-s);}
.feat .ic{width:38px;height:38px;color:var(--accent);margin-bottom:14px;}
.feat h3{font-size:var(--fs-h4);margin-bottom:8px;}
.feat p{font-size:13.5px;line-height:1.72;color:#5A6672;}
.bg-ink .feat{background:rgba(255,255,255,.035);border-color:rgba(255,255,255,.1);border-top-color:var(--accent);}
.bg-ink .feat p{color:rgba(255,255,255,.58);}

/* 左右图文 */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4.4vw,72px);align-items:center;}
.split.rev .media{order:2;}
.split .media{position:relative;}
.split .media img{width:100%;object-fit:cover;border-radius:var(--r);}
.split .media.tall img{aspect-ratio:4/3.2;}
.split .media .tagnum{
  position:absolute;right:-6px;bottom:-6px;background:var(--accent);color:#fff;
  font-family:var(--num-font);font-weight:700;font-size:clamp(18px,1.8vw,26px);
  padding:10px 16px;line-height:1;letter-spacing:.02em;
}
.split .txt h2{font-size:var(--fs-h2);margin:12px 0 0;}
.split .txt .lead{margin-top:16px;}
.split .lst{margin-top:22px;display:grid;gap:12px;}
.split .lst li{display:flex;gap:12px;font-size:13.8px;line-height:1.7;color:#4A5563;}
.split .lst li b{color:var(--ink);font-weight:700;}
.split .lst .n{
  flex:none;width:22px;height:22px;border-radius:50%;background:var(--accent-soft);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-family:var(--num-font);font-size:11.5px;font-weight:700;margin-top:2px;
}
.split .acts{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

/* ============================================================
   表格
   ============================================================ */
.tblwrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);background:#fff;}
.tblwrap::-webkit-scrollbar{height:6px;}
.tblwrap::-webkit-scrollbar-thumb{background:rgba(11,14,18,.18);border-radius:3px;}
table.tbl{min-width:640px;font-size:13.4px;}
table.tbl th,table.tbl td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line-2);vertical-align:middle;}
table.tbl thead th{
  background:var(--ink);color:#fff;font-weight:700;font-size:12.4px;letter-spacing:.04em;
  white-space:nowrap;border-bottom:0;
}
table.tbl tbody tr:nth-child(even){background:#FAFBFC;}
table.tbl tbody tr:hover{background:var(--accent-soft);}
table.tbl td:first-child{font-weight:700;color:var(--ink);white-space:nowrap;}
table.tbl .num{font-family:var(--num-font);font-variant-numeric:tabular-nums;}

/* ============================================================
   工艺流程 / 时间轴
   ============================================================ */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(12px,1.4vw,20px);counter-reset:st;}
.flow .st{
  position:relative;background:#fff;border:1px solid var(--line);overflow:hidden;
  display:flex;flex-direction:column;transition:.3s var(--ease);
}
.flow .st:hover{box-shadow:var(--shadow);border-color:transparent;transform:translateY(-3px);}
.flow .st .ph{aspect-ratio:4/3;overflow:hidden;background:#EDEEF0;position:relative;}
.flow .st .ph img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease);}
.flow .st:hover .ph img{transform:scale(1.06);}
.flow .st .no{
  position:absolute;left:0;top:0;background:rgba(11,14,18,.82);color:#fff;
  font-family:var(--num-font);font-size:12px;font-weight:700;padding:5px 9px;letter-spacing:.06em;
}
.flow .st .body{padding:clamp(12px,1.2vw,18px);}
.flow .st h3{font-size:var(--fs-h4);display:flex;align-items:center;gap:8px;}
.flow .st h3::before{counter-increment:st;content:counter(st,decimal-leading-zero);font-family:var(--num-font);font-size:12px;color:var(--accent);font-weight:700;}
.flow .st p{font-size:12.8px;line-height:1.66;color:#6B7683;margin-top:6px;}

/* 竖向流程 */
.vflow{position:relative;}
.vflow::before{content:"";position:absolute;left:11px;top:6px;bottom:6px;width:1px;background:var(--line);}
.vflow .it{position:relative;padding:0 0 26px 40px;}
.vflow .it:last-child{padding-bottom:0;}
.vflow .it::before{
  content:"";position:absolute;left:5px;top:5px;width:13px;height:13px;border-radius:50%;
  background:#fff;border:2px solid var(--accent);
}
.vflow .it h4{font-size:var(--fs-h4);}
.vflow .it .kv{font-size:13px;color:#6B7683;margin-top:5px;line-height:1.7;}

/* ============================================================
   案例
   ============================================================ */
.cases{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(12px,1.6vw,24px);}
.case{
  position:relative;overflow:hidden;background:#0F1319;display:block;
  aspect-ratio:4/3;border-radius:var(--r);
}
.case img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease),opacity .5s;}
.case::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,14,18,.94) 4%,rgba(11,14,18,.55) 38%,rgba(11,14,18,.1) 70%);
}
.case:hover img{transform:scale(1.06);}
.case .c{position:absolute;left:0;right:0;bottom:0;padding:clamp(14px,1.8vw,24px);z-index:1;}
.case .c .k{font-size:11px;font-weight:700;letter-spacing:.12em;color:var(--accent-2);text-transform:uppercase;}
.case .c h3{font-size:var(--fs-h4);color:#fff;margin-top:6px;line-height:1.4;}
.case .c p{font-size:12.5px;color:rgba(255,255,255,.6);margin-top:6px;line-height:1.6;}
.case .c .go{display:inline-flex;align-items:center;gap:7px;margin-top:10px;font-size:12.5px;font-weight:700;color:#fff;opacity:0;transform:translateY(6px);transition:.3s var(--ease);}
.case:hover .c .go{opacity:1;transform:translateY(0);}

/* ============================================================
   文章
   ============================================================ */
.news{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:clamp(20px,3vw,48px);}
.nlist{display:grid;gap:0;}
.nlist a.it{
  display:grid;grid-template-columns:1fr auto;gap:8px 18px;padding:clamp(14px,1.5vw,20px) 0;
  border-bottom:1px solid var(--line);align-items:baseline;transition:.24s;
}
.nlist a.it:hover{padding-left:10px;}
.nlist a.it .t{font-size:clamp(14.5px,.4vw,17px);font-weight:700;line-height:1.5;color:var(--ink);display:flex;gap:10px;}
.nlist a.it:hover .t{color:var(--accent);}
.nlist a.it .cat{flex:none;font-size:11px;font-weight:700;color:var(--accent);border:1px solid currentColor;padding:1px 6px;border-radius:1px;line-height:1.5;align-self:center;}
.nlist a.it .d{font-family:var(--num-font);font-size:12.5px;color:#9AA5B1;letter-spacing:.02em;white-space:nowrap;}
.nlist a.it .s{grid-column:1/-1;font-size:12.8px;line-height:1.66;color:#7A8592;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

.ngrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(12px,1.6vw,24px);}
.ncard{background:#fff;border:1px solid var(--line);display:flex;flex-direction:column;transition:.3s var(--ease);}
.ncard:hover{box-shadow:var(--shadow-s);transform:translateY(-3px);border-color:transparent;}
.ncard .ph{aspect-ratio:16/10;background:#EDEEF0;overflow:hidden;}
.ncard .ph img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease);}
.ncard:hover .ph img{transform:scale(1.05);}
.ncard .body{padding:clamp(13px,1.4vw,20px);display:flex;flex-direction:column;gap:9px;flex:1;}
.ncard .k{font-size:11px;font-weight:700;letter-spacing:.1em;color:var(--accent);text-transform:uppercase;}
.ncard h3{font-size:var(--fs-h4);line-height:1.44;}
.ncard .d{margin-top:auto;font-family:var(--num-font);font-size:12px;color:#9AA5B1;}

/* 侧栏 */
.side{display:grid;gap:clamp(16px,2vw,26px);align-content:start;}
.sbox{background:#fff;border:1px solid var(--line);}
.sbox .hd{padding:13px 18px;background:var(--ink);color:#fff;font-weight:700;font-size:14px;display:flex;align-items:center;gap:9px;}
.sbox .hd::before{content:"";width:3px;height:14px;background:var(--accent);}
.sbox .bd{padding:14px 18px 18px;}
.sbox .bd .lk{display:flex;align-items:center;justify-content:space-between;padding:10px 0;font-size:13.6px;color:#4A5563;border-bottom:1px dashed var(--line);}
.sbox .bd .lk:last-child{border-bottom:0;}
.sbox .bd .lk:hover{color:var(--accent);}
.sbox .bd .lk span{font-family:var(--num-font);font-size:11.5px;color:#6E7885;}
.sbox .contact{padding:20px 18px;background:var(--ink);color:#fff;}
.sbox .contact .t{font-size:11.5px;letter-spacing:.14em;color:rgba(255,255,255,.48);text-transform:uppercase;}
.sbox .contact .p{font-family:var(--num-font);font-size:clamp(22px,2.2vw,28px);font-weight:700;line-height:1.25;margin:6px 0 14px;}
.sbox .contact .l{font-size:12.6px;color:rgba(255,255,255,.62);line-height:1.9;}
.sbox .contact .b{display:flex;gap:8px;margin-top:14px;}
.sbox .contact .b a{flex:1;display:flex;align-items:center;justify-content:center;height:42px;font-size:13px;font-weight:700;border:1px solid rgba(255,255,255,.28);border-radius:2px;}
.sbox .contact .b a.p{background:var(--accent);border-color:var(--accent);}

/* 正文排版 */
.article{background:#fff;border:1px solid var(--line);padding:clamp(18px,3vw,44px);}
.article h1{font-size:clamp(21px,2vw + 11px,36px);line-height:1.32;}
.article .meta{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:12.6px;color:#8A97A6;margin-top:14px;padding-bottom:18px;border-bottom:1px solid var(--line);}
.article .meta .tag{color:var(--accent);border:1px solid currentColor;padding:1px 7px;border-radius:1px;}
.prose{margin-top:clamp(18px,2.4vw,32px);font-size:clamp(14.5px,.42vw,16.4px);line-height:1.95;color:#39424D;}
.prose h2{font-size:clamp(19px,1.2vw + 13px,26px);margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--accent);line-height:1.4;}
.prose h3{font-size:clamp(16px,.6vw + 12px,20px);margin:26px 0 10px;color:var(--ink);}
.prose p{margin:0 0 16px;}
.prose ul,.prose ol{margin:0 0 18px;padding-left:0;}
.prose li{position:relative;padding-left:20px;margin-bottom:9px;color:#39424D;}
.prose li::before{content:"";position:absolute;left:2px;top:.68em;width:6px;height:6px;background:var(--accent);border-radius:1px;}
.prose img{margin:20px auto;border-radius:var(--r);}
.prose blockquote{
  margin:22px 0;padding:16px 20px;background:var(--paper-2);border-left:3px solid var(--accent);
  font-size:.96em;color:#46505C;
}
.prose table{font-size:13.4px;margin:20px 0;}
.prose table th{background:var(--ink);color:#fff;padding:10px 12px;text-align:left;font-weight:700;}
.prose table td{padding:10px 12px;border-bottom:1px solid var(--line);}
.prose strong{color:var(--ink);font-weight:800;}
.prose .note{background:var(--accent-soft);border:1px solid rgba(211,32,47,.18);padding:16px 18px;font-size:13.6px;line-height:1.8;margin:20px 0;}

/* 目录 */
.toc{background:var(--paper-2);border-left:3px solid var(--ink);padding:16px 20px;margin:22px 0;}
.toc .t{font-weight:800;font-size:13px;letter-spacing:.06em;margin-bottom:8px;}
.toc a{display:block;font-size:13.4px;color:#4A5563;padding:4px 0;}
.toc a:hover{color:var(--accent);}

/* ============================================================
   CTA
   ============================================================ */
.cta{position:relative;background:var(--band);color:#fff;overflow:hidden;isolation:isolate;}
.cta::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(120% 130% at 82% 12%,rgba(211,32,47,.34),transparent 58%),
             linear-gradient(96deg,rgba(11,14,18,.9),rgba(21,27,34,.86));
}
.cta .wrap{padding:clamp(34px,5vw,72px) var(--gutter);display:grid;grid-template-columns:minmax(0,1.4fr) auto;gap:clamp(20px,3vw,50px);align-items:center;}
.cta h2{font-size:var(--fs-h2);color:#fff;line-height:1.24;}
.cta p{margin-top:12px;color:rgba(255,255,255,.62);font-size:var(--fs-lead);max-width:640px;}
.cta .acts{display:flex;flex-wrap:wrap;gap:10px;}
.cta .btn-g{color:#fff;border-color:rgba(255,255,255,.34);}
.cta .btn-g:hover{background:#fff;border-color:#fff;color:var(--band);}
.cta .telbox{display:flex;align-items:center;gap:14px;padding:14px 22px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);}
.cta .telbox .k{font-family:var(--num-font);font-size:clamp(20px,2vw,28px);font-weight:700;color:#fff;line-height:1.2;}
.cta .telbox .l{font-size:11.5px;color:rgba(255,255,255,.45);letter-spacing:.1em;text-transform:uppercase;}

/* ============================================================
   页脚
   ============================================================ */
.ftr{background:#080B0E;color:rgba(242,244,247,.6);padding-top:clamp(34px,4.4vw,62px);}
.ftr .top{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(4,minmax(0,1fr)) minmax(0,1fr);gap:clamp(20px,2.6vw,42px);padding-bottom:clamp(26px,3.4vw,48px);}
.ftr .brandblk img{height:40px;width:auto;margin-bottom:16px;}
.ftr .brandblk p{font-size:13px;line-height:1.85;color:rgba(242,244,247,.46);max-width:340px;}
.ftr .certs{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;}
.ftr .certs span{font-size:11px;border:1px solid rgba(255,255,255,.14);padding:3px 8px;color:rgba(255,255,255,.5);}
.ftr dl dt{font-size:13.5px;font-weight:800;color:#fff;margin-bottom:12px;letter-spacing:.03em;}
.ftr dl dd{margin:0 0 9px;}
.ftr dl dd a{font-size:12.8px;color:rgba(242,244,247,.5);transition:color .2s;}
.ftr dl dd a:hover{color:#fff;}
.ftr .ct .p{font-family:var(--num-font);font-size:clamp(21px,2vw,27px);font-weight:700;color:#fff;line-height:1.2;}
.ftr .ct .l{font-size:11.5px;color:rgba(255,255,255,.38);letter-spacing:.1em;margin-bottom:4px;}
.ftr .ct .x{font-size:12.6px;line-height:1.9;color:rgba(242,244,247,.46);margin-top:10px;}
.ftr .qr{width:86px;height:86px;background:#fff;padding:4px;margin-top:12px;}
.ftr .qr img{width:100%;height:100%;object-fit:contain;}
.ftr .bot{border-top:1px solid rgba(255,255,255,.09);padding:16px 0;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;font-size:12.2px;color:rgba(242,244,247,.36);}
.ftr .bot a:hover{color:#fff;}
.ftr .citys{padding:0 0 16px;font-size:12px;line-height:2;color:rgba(242,244,247,.3);}
.ftr .citys b{color:rgba(242,244,247,.5);font-weight:700;margin-right:6px;}
.ftr .citys a{margin-right:11px;}
.ftr .citys a:hover{color:#fff;}

/* 浮动工具 */
.tools{position:fixed;right:14px;bottom:clamp(84px,10vw,110px);z-index:40;display:grid;gap:8px;}
.tools a,.tools button{
  width:44px;height:44px;background:#fff;border:1px solid var(--line);border-radius:2px;
  display:flex;align-items:center;justify-content:center;color:#4A5563;
  box-shadow:var(--shadow-s);transition:.22s;position:relative;
}
.tools a:hover,.tools button:hover{background:var(--accent);border-color:var(--accent);color:#fff;}
.tools .tip{
  position:absolute;right:52px;top:50%;transform:translateY(-50%) translateX(6px);
  background:var(--ink);color:#fff;font-size:12px;padding:6px 10px;white-space:nowrap;
  opacity:0;pointer-events:none;transition:.2s;
}
.tools a:hover .tip,.tools button:hover .tip{opacity:1;transform:translateY(-50%) translateX(0);}
.tools .top{display:none;}
.tools .top.on{display:flex;}

/* 移动底部条 */
.mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:45;background:rgba(255,255,255,.97);
  border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);}
.mbar ul{display:grid;grid-template-columns:repeat(4,1fr);}
.mbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;height:54px;font-size:11px;font-weight:700;color:#4A5563;}
.mbar a svg{width:19px;height:19px;}
.mbar a.p{color:var(--accent);}
.mbar a.tel{background:var(--accent);color:#fff;}

/* ============================================================
   响应式
   ============================================================ */

/* 大屏 1600+ */
@media(min-width:1600px){
  :root{--wrap:1440px;}
  .hero-vis .frame img{aspect-ratio:4/3.1;}
}
/* 小笔记本 1200 */
@media(max-width:1200px){
  .nav>ul>li>a{padding:0 9px;font-size:13.6px;}
  .hero-grid{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);}
  .pgrid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .ftr .top{grid-template-columns:minmax(0,1.3fr) repeat(3,minmax(0,1fr)) minmax(0,1fr);}
}
/* 平板横 1024 */
@media(max-width:1080px){
  :root{--hdr-h:64px;}
  .topbar{display:none;}
  .hdr .cta .btn{display:none;}
  .hdr .tel{display:flex;align-items:center;gap:7px;font-family:var(--num-font);font-weight:700;font-size:16px;color:var(--accent);}
  .burger{display:flex;}
  .nav{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:clamp(20px,3vw,32px);}
  .hero-vis{max-width:640px;}
  .hero-vis .frame img{aspect-ratio:16/10;}
  .hero-strip .wrap{grid-template-columns:repeat(4,1fr);}
  .flow{grid-template-columns:repeat(3,minmax(0,1fr));}
  .cases,.ngrid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news{grid-template-columns:1fr;}
  .split{gap:clamp(18px,3vw,34px);}
  .cta .wrap{grid-template-columns:1fr;}
  .ftr .top{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ftr .brandblk{grid-column:1/-1;}
}
/* 平板竖 768 */
@media(max-width:860px){
  :root{--sect:clamp(38px,7vw,64px);}
  .pgrid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .hero-strip .wrap{grid-template-columns:repeat(2,1fr);}
  .hero-strip .it+.it{padding-left:0;}
  .hero-strip .it:nth-child(n+3){border-top:1px solid rgba(255,255,255,.1);}
  .hero-strip .it:nth-child(even){border-left:1px solid rgba(255,255,255,.1);}
  .hero-strip .it:nth-child(even){padding-left:16px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .split{grid-template-columns:1fr;}
  .split.rev .media{order:0;}
  .split .media.tall img{aspect-ratio:16/10;}
  .news{grid-template-columns:1fr;}
  .article{padding:clamp(16px,3vw,26px);}
  .mbar{display:block;}
  body{padding-bottom:56px;}
  .tools{bottom:auto;top:50%;transform:translateY(-50%);right:8px;}
  .tools .top{display:none!important;}
}
/* 手机 640 */
@media(max-width:640px){
  :root{--fs-h1:clamp(26px,7.6vw,36px);--fs-h2:clamp(21px,5.4vw,27px);}
  .pgrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
  .pcard .body{padding:11px;gap:6px;}
  .pcard h3{font-size:13.6px;}
  .pcard .spec{font-size:11px;}
  .pcard .foot{display:none;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
  .flow .st .body{padding:10px;}
  .flow .st p{font-size:11.6px;}
  .cases,.ngrid{grid-template-columns:1fr;}
  .feats{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .hero .acts .btn{flex:1;min-width:0;}
  .hero-strip .v{font-size:21px;}
  .cta .wrap{grid-template-columns:1fr;}
  .cta .telbox{flex-direction:column;align-items:flex-start;gap:4px;width:100%;}
  .ftr .top{grid-template-columns:1fr 1fr;gap:22px 16px;}
  .ftr .ct{grid-column:1/-1;}
  .ftr .qr{display:none;}
  .ftr .bot{flex-direction:column;gap:6px;}
  .split .lst li{font-size:13px;}
  .sec-head .lead{font-size:14.2px;}
  .pghero .meta{gap:10px 18px;}
}
/* 小手机 380 */
@media(max-width:380px){
  :root{--gutter:14px;}
  .pgrid{grid-template-columns:1fr 1fr;gap:8px;}
  .hero .micro{gap:10px 16px;}
  .btn{min-height:44px;padding:0 14px;font-size:13px;}
}

/* 无障碍 / 兼容 */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important;}
}
@media print{
  .hdr,.topbar,.ftr,.tools,.mbar,.cta,.drawer{display:none!important;}
  body{color:#000;background:#fff;}
}
/* 触屏设备隐藏 hover 位移造成的抖动 */
@media(hover:none){
  .pcard:hover,.feat:hover,.ncard:hover,.flow .st:hover{transform:none;}
  .case .c .go{opacity:1;transform:none;}
}
/* 高对比 / 深色系统偏好时保持品牌一致（不做自动反色，避免误伤） */

/* ============================================================
   滚动显现（无 JS 时不隐藏内容，保证任何设备都能看到）
   ============================================================ */
.js [data-rv]{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.js [data-rv].in{opacity:1;transform:none;}
.js [data-rv][data-rv="2"]{transition-delay:.09s;}
.js [data-rv][data-rv="3"]{transition-delay:.18s;}
.js [data-rv][data-rv="4"]{transition-delay:.27s;}
@media(prefers-reduced-motion:reduce){.js [data-rv]{opacity:1!important;transform:none!important;}}

/* 画廊 */
.gal{display:grid;grid-template-columns:1fr;gap:10px;}
.gal .main{background:#F1F2F4;border:1px solid var(--line);aspect-ratio:1/1;overflow:hidden;position:relative;}
.gal .main img{width:100%;height:100%;object-fit:contain;}
.gal .thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;}
.gal .thumbs button{background:#F1F2F4;border:1px solid var(--line);aspect-ratio:1/1;overflow:hidden;padding:0;}
.gal .thumbs img{width:100%;height:100%;object-fit:cover;opacity:.72;transition:.22s;}
.gal .thumbs button.on{border-color:var(--accent);}
.gal .thumbs button.on img,.gal .thumbs button:hover img{opacity:1;}

/* 页签 */
.tabs{display:flex;flex-wrap:wrap;gap:0;border-bottom:1px solid var(--line);margin-bottom:0;}
.tabs button{padding:13px 20px;font-weight:700;font-size:13.8px;color:#6B7683;border-bottom:2px solid transparent;margin-bottom:-1px;transition:.2s;}
.tabs button.on{color:var(--accent);border-bottom-color:var(--accent);}
.pane{display:none;padding-top:20px;}
.pane.on{display:block;}

/* 表单 */
.form{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.form .full{grid-column:1/-1;}
.form label{display:block;font-size:12.5px;font-weight:700;color:#4A5563;margin-bottom:6px;}
.form input,.form select,.form textarea{
  width:100%;height:46px;border:1px solid var(--line);background:#fff;padding:0 13px;border-radius:2px;
  font-size:14px;transition:border-color .2s;
}
.form textarea{height:96px;padding:11px 13px;resize:vertical;}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--accent);}
.formtip{font-size:13px;margin-top:10px;display:none;}
.formtip.ok{display:block;color:#12888B;}
.formtip.bad{display:block;color:#D3202F;}
@media(max-width:640px){.form{grid-template-columns:1fr;}}

/* 价格/参数小条 */
.specbar{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.specbar div{background:#fff;padding:14px 16px;}
.specbar .k{font-size:11.5px;color:#8A97A6;letter-spacing:.06em;}
.specbar .v{font-weight:800;font-size:15px;margin-top:4px;line-height:1.4;}
@media(max-width:640px){.specbar{grid-template-columns:1fr 1fr;}}

/* 提示条 */
.notice{display:flex;gap:10px;align-items:flex-start;padding:14px 16px;background:var(--accent-soft);border-left:3px solid var(--accent);font-size:13.4px;line-height:1.75;color:#46505C;}
.notice svg{flex:none;width:17px;height:17px;margin-top:3px;color:var(--accent);}

/* 城市分站浮层 */
.citypop{
  position:fixed;inset:0;z-index:80;display:none;background:rgba(11,14,18,.55);
}
.citypop.on{display:block;}
.citypop .box{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:#fff;
  width:min(92vw,620px);max-height:82vh;overflow:auto;padding:clamp(18px,3vw,30px);
}
.citypop h3{font-size:17px;margin-bottom:4px;}
.citypop p{font-size:12.5px;color:#8A97A6;margin-bottom:16px;}
.citypop .cs{display:flex;flex-wrap:wrap;gap:8px;}
.citypop .cs a{padding:7px 13px;border:1px solid var(--line);font-size:13px;color:#4A5563;border-radius:2px;}
.citypop .cs a:hover{border-color:var(--accent);color:var(--accent);}
.citypop .x{position:absolute;right:14px;top:10px;font-size:24px;line-height:1;color:#9AA5B1;}

/* ---------- 顶栏语言切换 ---------- */
.topbar .langs{display:inline-flex;align-items:center;gap:1px;border:1px solid var(--line);border-radius:2px;overflow:hidden;}
.topbar .langs a{padding:3px 9px;font-size:11.5px;letter-spacing:.04em;color:inherit;opacity:.62;transition:.2s;}
.topbar .langs a:hover{opacity:1;background:rgba(128,128,128,.14);}
.topbar .langs a.on{opacity:1;font-weight:700;}
@media(max-width:900px){.topbar .langs{display:none;}}

/* ---- 移动端头部收敛（导航条目变多 + logo 变高后的适配） ---- */
@media(max-width:760px){
  .hdr .wrap{gap:8px;}
  .brand img{height:36px !important;}
  .hdr .tel{font-size:14.6px !important;}
  .hdr .tel svg{width:15px;height:15px;}
  .hdr .burger{width:40px;height:40px;flex:none;}
  .hdr .cta{gap:6px;min-width:0;}
  .wrap{padding-left:14px;padding-right:14px;}
}