@charset "utf-8";
/* ============================================================
   绛县鼎欧电子商务有限公司 官网 · 初稿 v6（有赞式）
   以下数值全部来自 youzan.com 的计算样式实测（视口 1372px）：
   字体  系统字体栈，不加载任何网络字体；全站 letter-spacing 为 0
   正文  14px / 21px  #323233
   标题  48px / 600 / 66px  #1D1D1F（首屏下间距 24，段落下间距 52）
   功能  h3 26px/600/35.75px  正文 18px/28px
   资源  h3 20px/600/28px     正文 16px/24px
   导航  高 92，链接 16px/500
   按钮  大 20px/400/高52/padding 0 36/圆角26；小 14px/高30/padding 0 16
   tab   16px/500/高40/padding 0 20，激活白底 #1D1D1F
   卡片  圆角 16；阴影极少；特色内光晕 inset 0 -90px 94px rgba(189,217,255,.31)
   页脚  纯黑底，上下 120，「与我们联系」28px/400/40px
   ============================================================ */

:root{
  --bl:#3370FF; --bl-h:#2B63E6;
  --t1:#1D1D1F;      /* 标题 */
  --t2:#323233;      /* 正文 */
  --t3:#646566;
  --t4:#969799;
  --t5:#C8C9CC;
  --ln:#EBEDF0;
  --band:#F4F6FA;    /* 中段浅蓝灰底 */
  --tag:#F2F3F5;
  --glow:inset 0 -90px 94px rgba(189,217,255,.31);
  --ff:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Helvetica,Arial,"PingFang SC","Hiragino Sans GB","Microsoft Yahei",STHeiti,SimSun,sans-serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--t2);font-family:var(--ff);font-size:14px;line-height:21px;
  -webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%}
button,input,select{font-family:inherit}
:focus-visible{outline:2px solid var(--bl);outline-offset:2px}
.w{max-width:1200px;margin:0 auto;padding-inline:24px}
.wx{max-width:1280px;margin:0 auto;padding-inline:24px}

/* ---------- 顶栏 ---------- */
.hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.hd .wx{height:92px;display:flex;align-items:center;gap:48px}
.logo{display:flex;align-items:center;gap:8px;flex-shrink:0}
.logo .mk{width:32px;height:32px;border-radius:8px;background:var(--bl);color:#fff;
  display:grid;place-items:center;font-size:17px;font-weight:600}
.logo .nm{font-size:22px;font-weight:600;color:var(--t1)}
.mainnav{display:flex;gap:40px;flex:1}
.mainnav a{display:flex;flex-direction:column;gap:6px}
.mainnav b{font-size:16px;font-weight:500;line-height:16px;color:var(--t1)}
.mainnav small{font-size:12px;line-height:16px;color:var(--t4)}
.mainnav a:hover b{color:var(--bl)}
.hr{display:flex;align-items:center;gap:24px;flex-shrink:0}
.hr>a{font-size:14px;color:var(--t2)}
.hr>a:hover{color:var(--bl)}
.btn-xs{display:inline-flex;align-items:center;height:30px;padding:0 16px;border-radius:9999px;
  background:var(--bl);color:#fff!important;font-size:14px}
.btn-xs:hover{background:var(--bl-h)}
.burger{display:none;width:24px;height:24px;padding:0;border:0;background:none;color:var(--t1);cursor:pointer}
.burger svg{width:24px;height:24px;display:block}
.drawer{display:none;background:#fff;border-top:1px solid var(--ln);padding:4px 24px 12px}
.drawer.open{display:block}
.drawer a{display:block;padding:12px 0;font-size:16px;color:var(--t1);border-bottom:1px solid var(--ln)}
.drawer a:last-child{border-bottom:0}

/* ---------- 按钮 ---------- */
.btn-l{display:inline-flex;align-items:center;justify-content:center;height:52px;padding:0 36px;
  border-radius:26px;background:var(--bl);color:#fff;font-size:20px;font-weight:400;border:1px solid transparent;
  cursor:pointer;transition:background .15s}
.btn-l:hover{background:var(--bl-h)}
.btn-l.ghost{background:#fff;color:var(--t1);border-color:var(--t5)}
.btn-l.ghost:hover{border-color:var(--t1)}
.btn-d{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 24px;border-radius:9999px;
  background:var(--t1);color:#fff;font-size:16px}
.btn-d i{font-style:normal}
.btn-d:hover{background:#000}
.btn-s{display:inline-flex;align-items:center;height:36px;padding:0 20px;border-radius:9999px;
  background:var(--bl);color:#fff;font-size:14px;white-space:nowrap}
.pill{display:inline-flex;align-items:center;gap:4px;height:28px;padding:0 12px;border-radius:9999px;
  border:1px solid var(--t1);color:var(--t1);font-size:14px}
.pill i{font-style:normal}
.pill:hover{background:var(--t1);color:#fff}

/* ---------- 首屏 ---------- */
.hero{padding:8px 0 64px}
.hcard{border-radius:16px;padding:32px 64px 0;
  background:linear-gradient(135deg,#EDF3FF 0%,#DDE8FF 52%,#EEF4FF 100%)}
.htabs{display:flex;gap:4px;flex-wrap:wrap}
.htabs button{height:40px;padding:0 20px;border:0;border-radius:9999px;background:transparent;
  color:var(--t3);font-size:16px;font-weight:500;cursor:pointer}
.htabs button:hover{color:var(--t1)}
.htabs button.on{background:#fff;color:var(--t1)}
.hbody{display:grid;grid-template-columns:minmax(0,554px) minmax(0,1fr);gap:64px;align-items:center;padding:56px 0 64px}
.hl h1{font-size:48px;font-weight:600;line-height:66px;color:var(--t1);margin-bottom:24px}
.hl .lead{font-size:16px;line-height:28px;color:var(--t1);margin-bottom:16px}
.acts{display:flex;gap:16px;margin-top:32px;flex-wrap:wrap}
.call{margin-top:14px;font-size:14px;line-height:21px;color:var(--t2)}
.hrt{display:grid;gap:16px}
.uic{background:#fff;border-radius:16px;padding:22px 28px;box-shadow:var(--glow);
  display:flex;align-items:baseline;gap:16px}
.uic .n{font-size:36px;font-weight:600;line-height:44px;color:var(--t1)}
.uic .n i{font-style:normal;font-size:16px;font-weight:400;margin-left:2px;color:var(--t3)}
.uic.b .n{color:var(--bl)}
.uic .k{font-size:16px;line-height:24px;color:var(--t3)}

/* ---------- 段落通用 ---------- */
.band{background:var(--band);padding:120px 0}
.plain{background:#fff;padding:120px 0}
.eyebrow{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.eyebrow span{font-size:16px;line-height:28px;color:var(--t1)}
.h2{font-size:48px;font-weight:600;line-height:66px;color:var(--t1);margin-bottom:52px}

/* ---------- 业务：左右交替功能块 ---------- */
.feat{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  background:#fff;border-radius:16px;padding:48px 56px;margin-top:24px}
.feat:first-of-type{margin-top:0}
.feat.rev .ft{order:2}
.ft h3{font-size:26px;font-weight:600;line-height:35.75px;color:var(--t1);margin-bottom:12px}
.ft p{font-size:18px;line-height:28px;color:var(--t2);margin-bottom:20px}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:32px}
.tags span{height:30px;display:inline-flex;align-items:center;padding:0 14px;border-radius:9999px;
  background:var(--tag);font-size:14px;color:var(--t2)}

/* ---------- 图位 ---------- */
.ph{position:relative;aspect-ratio:4/3;border-radius:12px;background:#E8ECF2;overflow:hidden}
.ph.wide{aspect-ratio:16/10}
.ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.ph em{position:absolute;left:16px;bottom:14px;font-style:normal;font-size:12px;color:var(--t4)}
.case .ph img{transition:transform .4s ease}
.case:hover .ph img{transform:scale(1.03)}

/* ---------- 经营类目 ---------- */
.catgrid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.cat{background:var(--band);border-radius:16px;padding:28px 16px;text-align:center;
  display:flex;flex-direction:column;gap:8px;transition:background .15s}
.cat:hover{background:#EAF0FA}
.cat b{font-size:16px;font-weight:500;line-height:24px;color:var(--t1)}
.cat small{font-size:12px;line-height:16px;color:var(--t4)}
.cat.food{background:#EAF1FF}
.cat.food b{color:var(--bl)}

/* ---------- 企业动态 ---------- */
.cases{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.case{background:#fff;border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.case .ph{border-radius:0}
.cb{padding:20px 20px 24px;display:flex;flex-direction:column;flex:1}
.cb h3{font-size:20px;font-weight:600;line-height:28px;color:var(--t2);margin-bottom:8px}
.case:hover .cb h3{color:var(--bl)}
.cb p{font-size:14px;line-height:21px;color:var(--t3);margin-bottom:16px}
.cb .dt{margin-top:auto;font-size:12px;line-height:16px;color:var(--t4)}

/* ---------- 公司简介 ---------- */
.about{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,480px);gap:64px;align-items:start}
.atx p{font-size:16px;line-height:28px;color:var(--t2);margin-bottom:16px}
.atx p:last-child{margin-bottom:0}
.reg{background:var(--band);border-radius:16px;padding:32px}
.reg h3{font-size:20px;font-weight:600;line-height:28px;color:var(--t1);margin-bottom:10px}
.reg dl{margin:0}
.reg dl>div{display:grid;grid-template-columns:112px 1fr;gap:16px;padding:12px 0;border-bottom:1px solid var(--ln)}
.reg dl>div:last-child{border-bottom:0}
.reg dt{font-size:14px;line-height:21px;color:var(--t4)}
.reg dd{margin:0;font-size:14px;line-height:21px;color:var(--t2)}
.regnote{margin-top:12px;font-size:12px;line-height:16px;color:var(--t4)}

/* ---------- 资源四卡 ---------- */
.res{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.rc{background:#fff;border-radius:16px;padding:32px 28px;display:flex;flex-direction:column;box-shadow:var(--glow)}
.rc h3{font-size:20px;font-weight:600;line-height:28px;color:var(--t1);margin-bottom:10px}
.rc p{font-size:16px;line-height:24px;color:var(--t2);margin-bottom:32px}
.rc .go{margin-top:auto;font-size:14px;color:var(--bl)}
.rc .go i{font-style:normal}

/* ---------- 黑色页脚 ---------- */
.ft-black{background:#000;color:#fff;padding:120px 0 0}
.fcta{display:grid;grid-template-columns:minmax(0,570px) minmax(0,1fr);gap:64px;align-items:start;padding-bottom:80px;
  border-bottom:1px solid rgba(255,255,255,.12)}
.fct{font-size:28px;line-height:40px;margin-bottom:12px}
.fcd{font-size:18px;line-height:26px;color:rgba(255,255,255,.72)}
.fform{display:grid;gap:16px}
.frow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.frow input,.frow select{height:52px;border-radius:8px;border:1px solid rgba(255,255,255,.2);
  background:#1A1A1C;color:#fff;padding:0 16px;font-size:16px;width:100%;min-width:0}
.frow input::placeholder{color:rgba(255,255,255,.4)}
.frow input:focus,.frow select:focus{outline:0;border-color:var(--bl)}
.frow input.err{border-color:#FF6B6B}
.fbtn{width:100%}
.fagree{font-size:16px;line-height:24px;color:rgba(255,255,255,.72);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.fagree input{accent-color:var(--bl);width:16px;height:16px;margin:0}
.fagree a{color:var(--bl)}
.fagree.err{color:#FF8A8A}
.fmsg{font-size:14px;line-height:21px;color:var(--bl);min-height:21px}
.fmsg.err{color:#FF8A8A}

.fcols{display:grid;grid-template-columns:repeat(3,1fr) 1.4fr;gap:32px;padding:64px 0}
.fcol h4{font-size:16px;font-weight:600;line-height:24px;margin-bottom:16px}
.fcol a{display:block;font-size:14px;line-height:21px;color:rgba(255,255,255,.6);padding:5px 0}
.fcol a:hover{color:#fff}
.fcontact{display:flex;flex-direction:column}
.fl1{font-size:12px;line-height:16px;color:rgba(255,255,255,.45);margin-top:10px}
.fl1:first-of-type{margin-top:0}
.ftel{font-size:24px;font-weight:600;line-height:32px;margin-top:2px}
.fl2{font-size:14px;line-height:21px;color:rgba(255,255,255,.72);margin-top:2px}

.fbot{border-top:1px solid rgba(255,255,255,.12);padding:24px 0 116px}
.fbot p{font-size:12px;line-height:22px;color:rgba(255,255,255,.4)}
.fbot a{color:rgba(255,255,255,.4)}
.fbot a:hover{color:rgba(255,255,255,.8)}

/* ---------- 右侧悬浮栏 ---------- */
.side{position:fixed;right:16px;top:50%;transform:translateY(-50%);z-index:40;background:#fff;
  border-radius:12px;box-shadow:0 4px 12px rgba(0,0,0,.08);padding:6px 0;width:64px}
.side a{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 0;color:var(--t2)}
.side a:hover{color:var(--bl)}
.side svg{width:22px;height:22px}
.side span{font-size:12px;line-height:16px}

/* ---------- 底部横幅 ---------- */
.promo{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);z-index:45;
  width:min(760px,calc(100% - 32px));background:#fff;border-radius:16px;
  box-shadow:0 4px 12px rgba(0,0,0,.08);padding:12px 16px 12px 12px;display:flex;align-items:center;gap:14px}
.promo[hidden]{display:none}
.promo .pic{width:52px;height:52px;border-radius:10px;background:linear-gradient(135deg,#EAF1FF,#D5E3FF);flex-shrink:0}
.ptx{flex:1;display:flex;flex-direction:column;gap:2px;min-width:0}
.ptx b{font-size:16px;font-weight:600;line-height:24px;color:var(--t1)}
.ptx small{font-size:12px;line-height:16px;color:var(--t4)}
.pclose{width:28px;height:28px;border:0;background:none;color:var(--t4);font-size:22px;line-height:1;cursor:pointer;flex-shrink:0}
.pclose:hover{color:var(--t1)}


/* ---------- 响应式 ---------- */
@media(max-width:1180px){
  .mainnav{gap:24px}
  .hbody{grid-template-columns:1fr 1fr;gap:40px}
  .fcta{grid-template-columns:1fr;gap:32px}
}
@media(max-width:1024px){
  .mainnav,.hr>a:not(.btn-xs){display:none}
  .burger{display:block}
  .hd .wx{height:64px}
  .hcard{padding:24px 28px 0}
  .hbody{grid-template-columns:1fr;padding:32px 0 40px}
  .hl h1{font-size:36px;line-height:50px}
  .h2{font-size:36px;line-height:50px;margin-bottom:36px}
  .band,.plain{padding:80px 0}
  .feat{grid-template-columns:1fr;gap:28px;padding:32px}
  .feat.rev .ft{order:0}
  .catgrid{grid-template-columns:repeat(3,1fr)}
  .cases,.res{grid-template-columns:repeat(2,1fr)}
  .about{grid-template-columns:1fr;gap:40px}
  .fcols{grid-template-columns:repeat(3,1fr)}
  .side{display:none}
}
@media(max-width:640px){
  .hl h1{font-size:28px;line-height:40px}
  .h2{font-size:28px;line-height:40px;margin-bottom:28px}
  .ft h3{font-size:22px;line-height:32px}
  .ft p{font-size:16px;line-height:26px}
  .btn-l{height:46px;padding:0 24px;font-size:17px}
  .acts .btn-l{flex:1}
  .uic .n{font-size:28px;line-height:36px}
  .band,.plain{padding:56px 0}
  .ft-black{padding-top:64px}
  .catgrid{grid-template-columns:repeat(2,1fr)}
  .cases,.res{grid-template-columns:1fr}
  .frow{grid-template-columns:1fr}
  .fcols{grid-template-columns:1fr 1fr}
  .reg dl>div{grid-template-columns:1fr;gap:2px}
  .promo .pic{display:none}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}