/* ============================================================
   中仪网 YIQI.CN 京东红主题 v1.0
   主色 #E1251B ｜ 中英双语 ｜ 纯静态 ｜ 零外链图片
   ============================================================ */
:root{
  --red:#E1251B; --red-dark:#c11e15; --red-light:#fff1f0;
  --ink:#1f2329; --sub:#646a73; --line:#e5e6eb; --bg:#f4f5f7;
  --gold:#ffb800; --green:#00b578; --card:#fff;
  --r:8px; --shadow:0 2px 12px rgba(31,35,41,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
ul{list-style:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}

/* ── 顶部通栏 ── */
.topbar{background:#232428;color:#b8b9be;font-size:12px}
.topbar .wrap{display:flex;justify-content:space-between;height:34px;align-items:center}
.topbar a:hover{color:#fff}
.topbar .links{display:flex;gap:18px;align-items:center}
.topbar .lang{color:var(--gold)}

/* ── Header：LOGO + 搜索 + 电话 ── */
.header{background:#fff}
.header .wrap{display:flex;align-items:center;gap:32px;padding:18px 16px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{width:48px;height:48px;border-radius:10px;background:var(--red);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:20px}
.logo b{font-size:24px;letter-spacing:1px}
.logo b i{font-style:normal;color:var(--red)}
.logo .slogan{font-size:12px;color:var(--sub)}
.search{flex:1;max-width:560px}
.search form{display:flex;border:2px solid var(--red);border-radius:6px;overflow:hidden}
.search input{flex:1;border:0;outline:0;padding:0 14px;height:40px;font-size:14px}
.search button{background:var(--red);color:#fff;border:0;padding:0 26px;font-size:15px;cursor:pointer;white-space:nowrap}
.search button:hover{background:var(--red-dark)}
.hotwords{margin-top:6px;font-size:12px;color:var(--sub);display:flex;gap:14px;flex-wrap:wrap}
.hotwords a:hover{color:var(--red)}
.hotel{flex-shrink:0;text-align:right}
.hotel .tel{font-size:20px;font-weight:800;color:var(--red)}
.hotel .sub{font-size:12px;color:var(--sub)}

/* ── 红色主导航 ── */
.mainnav{background:var(--red)}
.mainnav .wrap{display:flex;align-items:stretch}
.mainnav a{color:#fff;padding:0 20px;line-height:44px;display:block;font-size:15px;white-space:nowrap}
.mainnav a:hover,.mainnav a.on{background:var(--red-dark)}
.mainnav .allcat{background:rgba(0,0,0,.14);font-weight:600}
.mainnav .inqcart{margin-left:auto;display:flex;align-items:center;gap:6px}
.cart-badge{background:#ffc300;color:#232428;font-size:12px;border-radius:10px;padding:0 7px;line-height:18px;font-weight:700}

/* ── 首屏：分类树 + 轮播 + 公告卡 ── */
.hero{margin-top:14px}
.hero .wrap{display:grid;grid-template-columns:220px minmax(0,1fr) 250px;gap:12px}
.catlist{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:8px 0}
.catlist li{position:relative}
.catlist a{display:flex;justify-content:space-between;align-items:center;padding:9px 16px;font-size:13px}
.catlist a:hover{background:var(--red-light);color:var(--red)}
.catlist .arrow{color:#c2c7cf;font-size:12px}
.catlist .sub{display:none;position:absolute;left:100%;top:0;width:420px;background:#fff;border-radius:var(--r);box-shadow:0 4px 20px rgba(0,0,0,.15);padding:14px 18px;z-index:50;grid-template-columns:1fr 1fr;gap:6px 24px}
.catlist li:hover .sub{display:grid}
.catlist .sub b{grid-column:1/-1;color:var(--red);font-size:13px;border-bottom:1px solid var(--line);padding-bottom:6px;margin-bottom:4px}
.catlist .sub a{padding:4px 0;color:var(--sub)}
.carousel{position:relative;border-radius:var(--r);overflow:hidden;height:340px;box-shadow:var(--shadow)}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .6s;display:flex;flex-direction:column;justify-content:center;padding:0 56px;color:#fff}
.slide.on{opacity:1}
.slide h2{font-size:34px;margin-bottom:12px}
.slide p{font-size:16px;opacity:.92;max-width:420px}
.slide .cta{display:inline-block;margin-top:22px;background:#fff;color:var(--red);font-weight:700;padding:10px 28px;border-radius:24px;width:fit-content}
.s1{background:linear-gradient(120deg,#E1251B 0%,#ff6a5e 60%,#ffb199 100%)}
.s2{background:linear-gradient(120deg,#0f3460 0%,#1b5a8f 55%,#3d8ec9 100%)}
.s3{background:linear-gradient(120deg,#0a7d5c 0%,#12a87c 55%,#5ed3a9 100%)}
.slide svg.deco{position:absolute;right:36px;bottom:24px;opacity:.2;width:220px;height:220px}
.dots{position:absolute;bottom:14px;left:0;right:0;display:flex;justify-content:center;gap:8px}
.dots span{width:26px;height:4px;background:rgba(255,255,255,.45);border-radius:2px;cursor:pointer}
.dots span.on{background:#fff}
.sidenote{display:flex;flex-direction:column;gap:12px}
.notice{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:16px;flex:1}
.notice h4{font-size:14px;border-left:3px solid var(--red);padding-left:8px;margin-bottom:10px}
.notice p{font-size:12px;color:var(--sub);margin-bottom:8px}
.notice .tel{color:var(--red);font-weight:800;font-size:16px}

/* ── 通用区块 ── */
section.sec{margin-top:36px}
.sec-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:14px}
.sec-head h2{font-size:22px}
.sec-head h2 i{font-style:normal;color:var(--red);margin-right:8px}
.sec-head a{color:var(--sub);font-size:13px}
.sec-head a:hover{color:var(--red)}

/* ── 四品类卡 ── */
.catgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.catcard{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:22px 20px;border-top:3px solid transparent;transition:.2s}
.catcard:hover{border-top-color:var(--red);transform:translateY(-3px)}
.catcard .ic{width:52px;height:52px;border-radius:12px;background:var(--red-light);display:flex;align-items:center;justify-content:center;margin-bottom:12px;color:var(--red)}
.catcard h3{font-size:17px;margin-bottom:6px}
.catcard p{font-size:12px;color:var(--sub);line-height:1.9}
.catcard .more{display:inline-block;margin-top:10px;color:var(--red);font-size:13px;font-weight:600}

/* ── 商品卡 ── */
.prodgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.pcard{background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:.2s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-3px);box-shadow:0 6px 20px rgba(31,35,41,.13)}
.pcard .thumb{aspect-ratio:1/1;background:#fafafa;display:flex;align-items:center;justify-content:center;padding:18px}
.pcard .body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:8px;flex:1}
.pcard h3{font-size:14px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:40px}
.pcard .brand{font-size:12px;color:var(--red);font-weight:600}
.pcard .meta{font-size:12px;color:var(--sub)}
.pcard .foot{display:flex;justify-content:space-between;align-items:center;margin-top:auto}
.price{color:var(--red);font-weight:800;font-size:16px}
.price::before{content:"¥";font-size:12px}
.price.inq::before{content:""}
.btn-inq{background:var(--red);color:#fff;border:0;border-radius:6px;padding:7px 14px;font-size:13px;cursor:pointer;white-space:nowrap}
.btn-inq:hover{background:var(--red-dark)}
.badge{position:absolute;top:10px;left:10px;background:var(--red);color:#fff;font-size:11px;padding:2px 8px;border-radius:4px;z-index:2}
.pcard{position:relative}

/* ── 品牌带 ── */
.brandband{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.brandcell{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:20px 12px;text-align:center}
.brandcell b{display:block;font-size:16px}
.brandcell span{font-size:12px;color:var(--sub)}

/* ── 采购保障 ── */
.assure{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.assure .cell{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:20px;display:flex;gap:14px;align-items:center}
.assure .ic{width:44px;height:44px;border-radius:50%;background:var(--red-light);color:var(--red);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.assure b{font-size:15px;display:block}
.assure span{font-size:12px;color:var(--sub)}

/* ── FAQ ── */
.faq{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:8px 22px}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq details:last-child{border-bottom:0}
.faq summary{font-weight:600;cursor:pointer;font-size:14px}
.faq details p{color:var(--sub);font-size:13px;margin-top:8px}

/* ── 页脚 ── */
footer{background:#232428;color:#9a9ca3;margin-top:44px;font-size:13px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:28px;padding:36px 0 26px}
footer h5{color:#fff;font-size:15px;margin-bottom:14px}
footer li{margin-bottom:9px}
footer a:hover{color:#fff}
footer .contact b{color:#fff;font-size:17px}
footer .beian{border-top:1px solid #3a3b40;padding:16px 0;text-align:center;font-size:12px}
footer .beian a{color:#9a9ca3}
footer .beian a:hover{color:#fff}

/* ── 商品详情页 ── */
.crumbs{font-size:13px;color:var(--sub);margin:14px 0}
.crumbs a:hover{color:var(--red)}
.detail{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:28px;display:grid;grid-template-columns:440px minmax(0,1fr);gap:36px}
.gallery .main{border:1px solid var(--line);border-radius:var(--r);aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;background:#fafafa}
.gallery .thumbs{display:flex;gap:10px;margin-top:12px}
.gallery .thumbs span{width:64px;height:64px;border:1px solid var(--line);border-radius:6px;display:flex;align-items:center;justify-content:center;cursor:pointer;background:#fafafa}
.gallery .thumbs span.on{border-color:var(--red)}
.d-info h1{font-size:22px;line-height:1.5}
.d-info .brand{color:var(--red);font-weight:700;margin-top:8px}
.d-pricebox{background:var(--red-light);border-radius:var(--r);padding:14px 18px;margin:16px 0;display:flex;justify-content:space-between;align-items:center}
.d-pricebox .price{font-size:26px}
.d-pricebox .tip{font-size:12px;color:var(--sub)}
.skus{margin:14px 0}
.skus .lab{font-size:13px;color:var(--sub);margin-bottom:8px}
.pills{display:flex;flex-wrap:wrap;gap:10px}
.pill{border:1px solid var(--line);border-radius:999px;padding:6px 16px;font-size:13px;cursor:pointer;background:#fff}
.pill.on{border-color:var(--red);color:var(--red);background:var(--red-light);font-weight:600}
.d-ops{display:flex;gap:14px;margin:20px 0;align-items:center}
.qty{display:flex;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.qty button{width:34px;height:38px;border:0;background:#fafafa;cursor:pointer;font-size:16px}
.qty input{width:56px;text-align:center;border:0;outline:0;height:38px}
.btn-main{background:var(--red);color:#fff;border:0;border-radius:6px;padding:10px 32px;font-size:15px;font-weight:600;cursor:pointer}
.btn-main:hover{background:var(--red-dark)}
.btn-ghost{background:#fff;color:var(--red);border:1px solid var(--red);border-radius:6px;padding:10px 24px;font-size:15px;cursor:pointer}
.d-svc{display:flex;gap:20px;font-size:12px;color:var(--sub);flex-wrap:wrap;margin-top:14px}
.d-svc i{font-style:normal;color:var(--red);margin-right:4px}
.panel{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);margin-top:16px;padding:24px 28px}
.panel h3{font-size:17px;border-left:4px solid var(--red);padding-left:10px;margin-bottom:16px}
.spec-table{width:100%;border-collapse:collapse;font-size:13px}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.spec-table th{background:#fafafa;width:180px;color:var(--sub);font-weight:500}

/* ── 询盘表单 ── */
.form{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:30px;max-width:720px;margin:24px auto}
.form h1{font-size:22px;margin-bottom:6px}
.form .tip{color:var(--sub);font-size:13px;margin-bottom:20px}
.frow{display:grid;grid-template-columns:130px 1fr;gap:10px;align-items:center;margin-bottom:14px}
.frow label{text-align:right;color:var(--sub);font-size:13px}
.frow label i{color:var(--red);font-style:normal;margin-right:2px}
.frow input,.frow textarea,.frow select{border:1px solid var(--line);border-radius:6px;padding:9px 12px;font-size:14px;outline:0;width:100%;font-family:inherit}
.frow input:focus,.frow textarea:focus{border-color:var(--red)}
.form .submit{grid-column:2}
.ok-msg{background:#f0fff4;border:1px solid var(--green);color:var(--green);border-radius:6px;padding:12px 16px;margin-top:14px;display:none}

/* ── 建设中页 ── */
.soon{max-width:560px;margin:80px auto;text-align:center;background:#fff;border-radius:16px;box-shadow:var(--shadow);padding:56px 40px}
.soon .ic{width:80px;height:80px;border-radius:50%;background:var(--red-light);color:var(--red);display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:34px}
.soon h1{font-size:24px;margin-bottom:10px}
.soon p{color:var(--sub);margin-bottom:22px}

/* ── 返回顶部 & 工具条 ── */
#toTop{position:fixed;right:26px;bottom:90px;width:44px;height:44px;border-radius:8px;background:#fff;box-shadow:var(--shadow);border:1px solid var(--line);cursor:pointer;color:var(--red);font-size:18px;display:none;z-index:99}
#toTop:hover{background:var(--red);color:#fff;border-color:var(--red)}

/* ── 响应式 ── */
@media(max-width:1000px){
  .hero .wrap{grid-template-columns:1fr}
  .catlist{display:none}
  .prodgrid,.catgrid,.assure{grid-template-columns:repeat(2,1fr)}
  .brandband{grid-template-columns:repeat(2,1fr)}
  .detail{grid-template-columns:1fr}
  .header .wrap{flex-wrap:wrap}
  .hotel{display:none}
  footer .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .prodgrid,.catgrid,.assure,.brandband{grid-template-columns:1fr}
  .mainnav{overflow-x:auto}
  .topbar .links{gap:10px}
}