/* ============================================================
   宁波潇阳科技 · 站点样式（V2×V3 融合体系）
   纸白 #F7F6F2 / 影棚灰 #C8C8C8 / 石墨黑 #101214 / 铜褐 #9C4A2F
   ============================================================ */
:root{
  --paper:#F7F6F2;
  --studio:#C8C8C8;
  --ink:#101214;
  --ink-2:#4A4F55;
  --ink-3:#8A8F94;
  --copper:#9C4A2F;
  --copper-lt:#C87B4E;
  --espresso:#2A1F19;
  --line:#DEDAD0;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,sans-serif;
  --mono:"SF Mono",ui-monospace,"Cascadia Mono",Consolas,monospace;
}
*{-webkit-font-smoothing:antialiased}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);overflow-x:hidden}
::selection{background:var(--copper);color:#fff}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:500;letter-spacing:-.03em;text-wrap:pretty}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%}
.wrap{max-width:1240px;margin:0 auto;padding:0 32px}
@media(max-width:575.98px){.wrap{padding:0 20px}}
.kicker{font-family:var(--mono);font-size:11px;letter-spacing:.22em;color:var(--ink-3);text-transform:uppercase}

/* ---------- 顶栏 ---------- */
header{position:sticky;top:0;z-index:60;background:rgba(247,246,242,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
.logo{display:flex;align-items:center;gap:11px}
.logo .mark{width:24px;height:24px;color:var(--copper);flex:none}
.logo b{font-size:17px;letter-spacing:.12em;font-weight:500;white-space:nowrap;display:block}
.logo i{font-style:normal;font-family:var(--mono);font-size:9px;letter-spacing:.2em;
  color:var(--ink-3);display:block;margin-top:3px;white-space:nowrap}
.nav{display:flex;gap:30px;font-size:14.5px;color:var(--ink-2)}
.nav > li > a{padding:5px 0;border-bottom:1px solid transparent;transition:.2s;display:block}
.nav > li > a:hover,.nav > li > a.on{color:var(--ink);border-color:var(--copper)}
.nav .sub{position:absolute;top:100%;left:0;min-width:210px;background:var(--paper);
  border:1px solid var(--line);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(6px);
  transition:.18s;box-shadow:0 18px 40px -28px rgba(0,0,0,.5)}
.nav li{position:relative}
.nav li:hover .sub{opacity:1;visibility:visible;transform:none}
.nav .sub a{display:block;padding:9px 18px;font-size:13.5px}
.nav .sub a:hover{background:var(--studio)}
.bar-right{display:flex;align-items:center;gap:22px}
.tel{font-family:var(--mono);font-size:14px;letter-spacing:.02em;white-space:nowrap}
.tel small{display:block;font-family:var(--sans);font-size:9.5px;letter-spacing:.14em;
  color:var(--ink-3);margin-top:2px}
.btn-line{border:1px solid var(--ink);padding:11px 20px;border-radius:2px;font-size:13.5px;
  letter-spacing:.04em;transition:.2s;white-space:nowrap;display:inline-block}
.btn-line:hover{background:var(--ink);color:var(--paper)}
.btn-solid{background:var(--ink);color:var(--paper);padding:14px 26px;border-radius:2px;
  font-size:14px;letter-spacing:.04em;transition:.2s;display:inline-block}
.btn-solid:hover{background:var(--copper);color:#fff}
@media(max-width:1099.98px){.nav{display:none}.tel{display:none}}
@media(max-width:767.98px){.bar-right .btn-line{display:none}.logo b{font-size:15.5px}}
.burger{display:none;width:44px;height:44px;border:0;background:none;padding:0;
  flex-direction:column;gap:5px;align-items:center;justify-content:center}
.burger span{width:20px;height:1.4px;background:var(--ink);display:block;transition:.22s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.4px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.4px) rotate(-45deg)}
@media(max-width:1099.98px){.burger{display:flex}}
.mnav{display:none;border-top:1px solid var(--line);background:var(--paper)}
.mnav.open{display:block}
.mnav a{display:flex;justify-content:space-between;padding:16px 32px;
  border-bottom:1px solid var(--line);font-size:15.5px}
.mnav a em{font-family:var(--mono);font-style:normal;font-size:10px;letter-spacing:.16em;color:var(--ink-3)}

/* ---------- 面包屑 ---------- */
.crumbs{padding:22px 0 0;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--ink-3)}
.crumbs a:hover{color:var(--copper)}
.crumbs span{color:var(--ink-2)}

/* ---------- 通用段 ---------- */
.sec{padding:96px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;flex-wrap:wrap}
.sec-head h2{margin-top:18px;font-size:clamp(28px,3.6vw,48px);line-height:1.14}
.sec-head p{margin-top:16px;max-width:56ch;font-size:15px;line-height:1.9;color:var(--ink-2)}
.more{font-size:13.5px;border-bottom:1px solid currentColor;padding-bottom:3px;white-space:nowrap}
.more:hover{color:var(--copper)}

/* ---------- 内页头 ---------- */
.phead{padding:34px 0 46px;border-bottom:1px solid var(--line)}
.phead h1{font-size:clamp(30px,4vw,54px);line-height:1.14;letter-spacing:-.035em;max-width:24ch}
.phead .intro{margin-top:20px;max-width:72ch;font-size:15.5px;line-height:1.95;color:var(--ink-2)}
.phead .meta{margin-top:24px;display:flex;gap:26px;flex-wrap:wrap;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;color:var(--ink-3)}
.phead .meta b{color:var(--copper);font-weight:400}

/* ---------- 产品详情 ---------- */
.pdetail{padding:44px 0 0}
.pd-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:start}
@media(max-width:991.98px){.pd-grid{grid-template-columns:1fr;gap:28px}}
.plate{background:var(--studio);padding:0;position:relative;margin:0}
.plate img{display:block;width:100%;height:auto}
.plate figcaption{position:absolute;right:0;bottom:0;background:rgba(255,255,255,.72);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:#25292D;
  padding:6px 11px;border-left:1px solid rgba(16,18,20,.1);border-top:1px solid rgba(16,18,20,.1)}
.pd-info h1{font-size:clamp(26px,3.2vw,40px);line-height:1.2}
.pd-info .lead{margin-top:16px;font-size:15px;line-height:1.9;color:var(--ink-2)}
.feats{margin-top:26px;border-top:1px solid var(--line)}
.feats li{padding:13px 0;border-bottom:1px solid var(--line);font-size:14.2px;
  line-height:1.8;color:var(--ink-2);display:grid;grid-template-columns:58px 1fr;gap:14px}
.feats li b{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--copper);
  font-weight:400;padding-top:4px}
.pd-cta{margin-top:30px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.pd-cta .tel-line{font-family:var(--mono);font-size:15px;letter-spacing:.02em}
.pd-cta .tel-line small{display:block;font-family:var(--sans);font-size:11px;
  letter-spacing:.1em;color:var(--ink-3);margin-top:4px}

/* ---------- 规格表 ---------- */
.spec{padding:70px 0 96px}
.spec h2{font-size:clamp(22px,2.4vw,30px)}
.spec .note{margin-top:10px;font-size:13px;color:var(--ink-3);font-family:var(--mono);letter-spacing:.08em}
.table-wrap{margin-top:22px;border:1px solid var(--line);background:#fff;overflow:auto;
  max-height:540px;scrollbar-width:thin}
.table-wrap::-webkit-scrollbar{width:9px;height:9px}
.table-wrap::-webkit-scrollbar-thumb{background:rgba(16,18,20,.22);border-radius:5px}
.table-wrap::-webkit-scrollbar-track{background:#F2F0EA}
table.spec-tb{width:100%;border-collapse:collapse;font-size:13.5px}
table.spec-tb th{position:sticky;top:0;z-index:2;background:var(--paper);box-shadow:inset 0 -1px 0 var(--line);font-weight:500;font-size:12.5px;letter-spacing:.04em;
  color:var(--ink-2);text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);
  white-space:nowrap;font-family:var(--mono)}
table.spec-tb td{padding:12px 16px;border-bottom:1px solid #EFECE4;color:var(--ink-2)}
table.spec-tb tr:last-child td{border-bottom:0}
table.spec-tb tbody tr:hover td{background:#FBFAF7;color:var(--ink)}
table.spec-tb td:first-child{font-family:var(--mono);font-size:12.5px;color:var(--ink)}
.tb-block + .tb-block{margin-top:34px}
.tb-block > h3{font-size:15px;margin-bottom:12px;font-family:var(--mono);
  letter-spacing:.1em;color:var(--copper)}

/* ---------- 侧栏 ---------- */
.with-side{display:grid;grid-template-columns:236px minmax(0,1fr);gap:56px;align-items:start;padding-top:34px}
.with-side > *{min-width:0}
@media(max-width:991.98px){.with-side{grid-template-columns:minmax(0,1fr);gap:28px}
  .rail{position:static;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:8px}}
.rail{position:sticky;top:100px;font-size:13.5px;min-width:0;overflow-wrap:anywhere}
.rail h4{font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:var(--ink-3);
  margin:0 0 12px;font-weight:400;padding-bottom:10px;border-bottom:1px solid var(--line)}
.rail .grp{margin-bottom:18px;border-bottom:1px solid var(--line);padding-bottom:12px}
.rail .grp-hd{display:flex;align-items:center;justify-content:space-between;gap:8px}
.rail .gname{font-size:14.5px;padding:5px 0;color:var(--ink);font-weight:500;flex:1}
.rail .gname:hover{color:var(--copper)}
.rail .gname.on{color:var(--copper)}
.rail .tg{width:28px;height:28px;border:0;background:none;cursor:pointer;flex:none;
  display:flex;align-items:center;justify-content:center;padding:0}
.rail .tg i{width:7px;height:7px;border-right:1.4px solid var(--ink-3);border-bottom:1.4px solid var(--ink-3);
  transform:rotate(45deg);transition:transform .2s;margin-top:-3px}
.rail .tg:hover i{border-color:var(--copper)}
.rail .grp.open .tg i{transform:rotate(-135deg);margin-top:3px}
.rail .grp > ul{display:none;margin-top:4px}
.rail .grp.open > ul{display:block}
.rail .grp li a{display:block;padding:6px 0 6px 12px;border-left:1px solid var(--line);
  color:var(--ink-2);font-size:13px;line-height:1.5}
.rail .grp li a:hover{color:var(--copper);border-color:var(--copper)}
.rail .grp li a.on{color:var(--copper);border-color:var(--copper);font-weight:500}

/* ---------- 卡片 ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:44px}
@media(max-width:1099.98px){.cards{grid-template-columns:repeat(3,1fr)}}
@media(max-width:767.98px){.cards{grid-template-columns:repeat(2,1fr);gap:16px}}
.card{display:block;background:#fff;border:1px solid var(--line);transition:.2s}
.card:hover{border-color:var(--copper);transform:translateY(-2px)}
.card .ph{background:var(--studio);padding:14px}
.card img{display:block;width:100%;height:auto}
.card .nm{padding:15px 16px 16px;display:flex;justify-content:space-between;
  align-items:baseline;gap:10px;border-top:1px solid var(--line)}
.card .nm b{font-weight:500;font-size:14.5px;line-height:1.4}
.card .nm span{font-family:var(--mono);font-size:10.5px;color:var(--ink-3);letter-spacing:.06em;white-space:nowrap}

/* 品种索引 */
.idx{margin-top:56px;border-top:1px solid var(--line);padding-top:28px}
.idx h3{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--ink-3);margin-bottom:18px}
.idx ul{display:grid;grid-template-columns:repeat(3,1fr);gap:0 32px}
@media(max-width:767.98px){.idx ul{grid-template-columns:1fr}}
.idx li{border-bottom:1px solid var(--line)}
.idx li a{display:flex;justify-content:space-between;gap:12px;padding:11px 2px;font-size:13.8px}
.idx li a:hover{color:var(--copper);padding-left:8px}
.idx li span{font-family:var(--mono);font-size:11px;color:var(--ink-3);white-space:nowrap}

/* ---------- 系统总览（产品中心） ---------- */
.sys-block{padding:72px 0;border-top:1px solid var(--line)}
.sys-block:first-of-type{border-top:0}
.sys-block .hd{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap}
.sys-block h2{font-size:clamp(24px,2.8vw,36px)}
.sys-block .no{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--copper);margin-bottom:12px}
.sys-block p{margin-top:14px;max-width:66ch;font-size:14.5px;line-height:1.9;color:var(--ink-2)}

/* ---------- 文章 ---------- */
.article{padding:44px 0 96px;max-width:760px;margin:0 auto}
.article h1{font-size:clamp(26px,3.4vw,42px);line-height:1.2}
.article .meta{margin-top:18px;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;
  color:var(--ink-3);padding-bottom:24px;border-bottom:1px solid var(--line)}
.article .body{margin-top:30px;font-size:15.5px;line-height:2.05;color:var(--ink-2)}
.article .body h2{font-size:21px;margin:38px 0 14px;color:var(--ink)}
.article .body h3{font-size:17px;margin:28px 0 12px;color:var(--ink)}
.article .body p{margin-bottom:16px}
.article .body img{margin:22px 0;border:1px solid var(--line)}
.article .body ul{list-style:none;margin:0 0 16px}
.article .body ul li{padding-left:18px;position:relative;margin-bottom:9px}
.article .body ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:1px;background:var(--copper)}

/* ---------- 新闻列表 ---------- */
.news-list{border-top:1px solid var(--line);margin-top:40px}
.news-item{display:grid;grid-template-columns:120px 1fr auto;gap:26px;align-items:center;
  padding:24px 2px;border-bottom:1px solid var(--line);transition:.2s}
.news-item:hover{padding-left:12px;background:rgba(200,200,200,.16)}
.news-item time{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;color:#6B7176}
.news-item h4{font-size:16px;font-weight:500}
.news-item em{font-style:normal;font-size:11.5px;color:#6B7176;border:1px solid var(--line);padding:4px 10px}
@media(max-width:767.98px){.news-item{grid-template-columns:1fr auto;gap:8px}.news-item time{grid-column:1/-1}}

/* ---------- 图文段 ---------- */
.txt-figs{display:grid;grid-template-columns:1fr 1.02fr;gap:56px;align-items:center}
@media(max-width:991.98px){.txt-figs{grid-template-columns:1fr;gap:28px}}
.txt-figs h2{font-size:clamp(26px,3.2vw,42px);line-height:1.2}
.txt-figs p{margin-top:18px;font-size:15px;line-height:2;color:var(--ink-2)}
.figs2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.figs2 figure{margin:0}
.figs2 img{display:block;width:100%;height:100%;object-fit:cover}
.figs2 figcaption{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:#6B7176;margin-top:9px}

/* ---------- 深色制造段 ---------- */
.material{background:#2A1F19 linear-gradient(180deg,#30241D 0%,#2A1F19 42%,#241A15 100%);
  color:#F0E8DE;padding:96px 0;position:relative}
.material::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(200,123,78,.9) 0%,rgba(200,123,78,.25) 60%,rgba(200,123,78,0) 100%)}
.material .kicker{color:rgba(240,232,222,.5)}
.material h2{margin-top:20px;font-size:clamp(26px,3.4vw,46px);line-height:1.18;max-width:30ch}
.material .grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:48px}
@media(max-width:991.98px){.material .grid{grid-template-columns:1fr;gap:28px}}
.material .item{padding:22px 0;border-top:1px solid rgba(240,232,222,.16);display:grid;
  grid-template-columns:44px 1fr;gap:16px}
.material .item:first-child{border-top:0;padding-top:0}
.material .item .no{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--copper-lt);padding-top:4px}
.material .item h4{font-size:16.5px;font-weight:500;margin-bottom:9px}
.material .item p{font-size:14px;line-height:1.95;color:rgba(240,232,222,.68)}
.material figure{margin:0}
.material figure img{display:block;width:100%;height:auto;box-shadow:0 24px 60px -30px rgba(0,0,0,.75)}
.material .stds{display:flex;flex-wrap:wrap;gap:9px;margin-top:34px;padding-top:26px;
  border-top:1px solid rgba(240,232,222,.16)}
.material .stds span{font-family:var(--mono);font-size:11px;letter-spacing:.08em;
  color:rgba(240,232,222,.82);border:1px solid rgba(240,232,222,.26);padding:6px 11px}
.material .stds span.lbl{border:0;padding:6px 14px 6px 0;color:var(--copper-lt);font-size:10.5px;letter-spacing:.22em}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}
@media(max-width:991.98px){.contact-grid{grid-template-columns:1fr;gap:28px}}
.dl{margin:30px 0 0;display:grid;grid-template-columns:96px 1fr;gap:16px 20px;font-size:14.5px}
.dl dt{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--ink-3);padding-top:4px}
.dl dd{margin:0;line-height:1.75}
.dl dd a{border-bottom:1px solid var(--line)}
.dl dd a:hover{color:var(--copper);border-color:var(--copper)}
.qr{background:var(--studio);padding:16px;display:inline-block}
.qr img{display:block;width:160px;height:160px}
.qr figcaption{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;color:#3B4045;margin-top:10px;text-align:center}

/* ---------- 页脚 ---------- */
footer{background:var(--studio);color:#1A1E22;padding:60px 0 32px;position:relative}
footer::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--copper) 0%,rgba(156,74,47,.25) 55%,rgba(156,74,47,0) 100%)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
@media(max-width:767.98px){.foot-grid{grid-template-columns:1fr 1fr;gap:26px}}
footer h5{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;color:var(--copper);
  margin:0 0 16px;font-weight:400}
footer li{font-size:13.5px;line-height:2.15;color:#1A1E22}
footer a:hover{color:var(--copper)}
footer .brand{font-size:17px;letter-spacing:.08em;color:#101214;font-weight:500}
footer .brand + p{margin-top:12px;font-size:13px;line-height:2;color:rgba(16,18,20,.74)}
.legal{margin-top:40px;padding-top:20px;border-top:1px solid rgba(16,18,20,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:rgba(16,18,20,.62)}

/* ---------- 动效 ---------- */
.rise{opacity:0;transform:translateY(18px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.rise.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rise{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* 无图占位（多产品堆叠图不再使用） */
.plate-empty,.ph-empty{background:var(--studio);display:flex;align-items:center;justify-content:center;aspect-ratio:1/1}
.plate-empty span{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:#2E3236;
  padding:0 34px;text-align:center;line-height:1.9}
.ph-empty span{font-size:13.5px;color:#2E3236;letter-spacing:.04em;padding:0 16px;text-align:center;line-height:1.7}
.pd-grid.no-img{grid-template-columns:minmax(0,760px);justify-content:start}

/* ---------- 行列表（品种列表新样式） ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chips a{font-size:13.5px;border:1px solid var(--line);background:#fff;padding:8px 16px;transition:.2s}
.chips a:hover{border-color:var(--copper);color:var(--copper)}
.chips a span{font-family:var(--mono);font-size:10.5px;color:var(--ink-3);margin-left:8px}

.plist{border-top:1px solid var(--line);margin-top:30px}
.prow{display:grid;grid-template-columns:38px 56px auto 1fr auto 22px;gap:14px;align-items:center;
  padding:10px 2px;border-bottom:1px solid var(--line);transition:background .18s,padding .18s}
.prow:hover{background:rgba(200,200,200,.22);padding-left:10px}
.prow .no{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:#8A8F94}
.prow .th{width:56px;height:56px;background:var(--studio);display:flex;align-items:center;justify-content:center;overflow:hidden}
.prow .th img{width:100%;height:100%;object-fit:cover;display:block}
.prow .th span{font-size:10px;color:#2E3236;text-align:center;padding:0 5px;line-height:1.35}
.prow .nm{font-size:15.5px;line-height:1.35;letter-spacing:-.01em;white-space:nowrap}
.prow .lead{border-bottom:1px dotted rgba(16,18,20,.3);height:1px;transform:translateY(-3px)}
.prow .mt{font-family:var(--mono);font-size:11.5px;color:#4A4F55;white-space:nowrap}
.prow .go{font-family:var(--mono);font-size:13px;color:var(--copper);opacity:.55;transition:.18s}
.prow:hover .nm{color:var(--copper)}
.prow:hover .go{opacity:1;transform:translateX(3px)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.chips a{font-size:13px;border:1px solid var(--line);background:#fff;padding:7px 14px;transition:.2s}
.chips a span{font-family:var(--mono);font-size:10.5px;color:var(--ink-3);margin-left:7px}
.chips a:hover{border-color:var(--copper);color:var(--copper)}
.chips a.on{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.chips a.on span{color:rgba(247,246,242,.6)}
@media(max-width:767.98px){
  .prow{grid-template-columns:30px 48px minmax(0,1fr) auto;gap:10px;padding:10px 2px}
  .prow .th{width:48px;height:48px}
  .prow .lead,.prow .go{display:none}
  .prow .nm{font-size:14.5px;white-space:normal}
}

@media(max-width:767.98px){
  .prow{grid-template-columns:34px 56px minmax(0,1fr) auto;gap:12px;padding:12px 2px}
  .prow .th{width:56px;height:56px}
  .prow .go{display:none}
  .prow .nm{font-size:14.5px}
}

/* ---------- 高密度产品网格 ---------- */
.filterbar{position:sticky;top:78px;z-index:30;background:rgba(247,246,242,.96);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding:14px 0}
.filterbar .chips{margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips a{font-size:13px;border:1px solid var(--line);background:#fff;padding:7px 14px;transition:.2s;white-space:nowrap}
.chips a span{font-family:var(--mono);font-size:10.5px;color:var(--ink-3);margin-left:7px}
.chips a:hover{border-color:var(--copper);color:var(--copper)}
.chips a.on{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.chips a.on span{color:rgba(247,246,242,.62)}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(186px,1fr));gap:24px 18px;margin-top:26px}
@media(max-width:1099.98px){.pgrid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:767.98px){.pgrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 14px}}
.pcard{display:block}
.pcard .ph{background:var(--studio);aspect-ratio:1/1;overflow:hidden;display:flex;align-items:center;justify-content:center}
.pcard .ph img{width:100%;height:100%;object-fit:contain;transition:transform .35s cubic-bezier(.2,.7,.2,1);display:block}
.pcard:hover .ph img{transform:scale(1.05)}
.pcard .ph span{font-size:12px;color:#2E3236;text-align:center;padding:0 12px;line-height:1.5}
.pcard .cap{padding:11px 2px 0;display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.pcard b{font-weight:500;font-size:14.5px;letter-spacing:-.01em;transition:color .2s}
.pcard:hover b{color:var(--copper)}
.pcard .cap span{font-family:var(--mono);font-size:10.5px;color:var(--ink-3);white-space:nowrap}
.phead .intro{max-width:74ch;font-size:14.5px;line-height:1.85}

.pgrid-5{grid-template-columns:repeat(5,minmax(0,1fr))}
@media(max-width:1099.98px){.pgrid-5{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:767.98px){.pgrid-5{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* 介绍折叠 */
.pspec{margin-top:16px;border-top:1px solid var(--line);padding-top:13px;max-width:74ch}
.pspec summary{cursor:pointer;list-style:none;font-family:var(--mono);font-size:11px;
  letter-spacing:.16em;color:var(--ink-2);display:inline-flex;align-items:center;gap:9px;
  border:1px solid var(--line);background:#fff;padding:7px 13px;border-radius:2px;transition:.2s}
.pspec summary::-webkit-details-marker{display:none}
.pspec summary::after{content:"⌄";font-size:13px;color:var(--copper);transform:translateY(-1px)}
.pspec[open] summary::after{content:"⌃"}
.pspec summary:hover{color:var(--copper);border-color:var(--copper)}
.pspec p{margin-top:14px;font-size:14.5px;line-height:1.95;color:var(--ink-2)}
.phead .lead{margin-top:16px;max-width:66ch;font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- 分类页：左列表 + 右预览 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:64px;align-items:start;
  padding-top:6px;padding-bottom:90px}
@media(max-width:991.98px){.split{display:none}}
.split-list{columns:2;column-gap:44px}
.srow{display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  padding:15px 2px;border-bottom:1px solid var(--line);font-size:16px;
  break-inside:avoid;transition:.18s;color:var(--ink)}
.srow:hover,.srow.active{color:var(--copper);padding-left:12px}
.srow i{font-family:var(--mono);font-style:normal;font-size:10.5px;color:var(--ink-3);letter-spacing:.1em}
.split-view{position:sticky;top:104px}
.split-view .pv{background:var(--studio);aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.split-view .pv img{width:100%;height:100%;object-fit:contain;transition:opacity .2s}
.split-view .pv span{font-size:13px;color:#2E3236;text-align:center;padding:0 20px}
.split-view .pv-cap{margin-top:16px;display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.split-view .pv-cap b{font-size:17px;font-weight:500}
.split-view .pv-cap a{font-size:13px;color:var(--copper);white-space:nowrap}
.split-view .pv-tip{margin-top:8px;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;color:var(--ink-3)}

/* 手机端：卡片网格 */
.mgrid{display:none}
@media(max-width:991.98px){
  .mgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 14px;margin-top:20px;padding-bottom:70px}
}

/* ---------- 产品中心：横向货架 ---------- */
.shelf{border-top:1px solid var(--line);padding:44px 0 10px}
.shelf:first-of-type{border-top:0}
.shelf-hd{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:22px}
.shelf-hd .no{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--copper)}
.shelf-hd h2{font-size:clamp(20px,2.2vw,28px);margin-top:8px}
.shelf-hd p{margin-top:8px;font-size:13.5px;line-height:1.8;color:var(--ink-2);max-width:62ch}
.shelf-rail{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:0 32px 14px;margin:0 -32px;-webkit-overflow-scrolling:touch}
.shelf-rail::-webkit-scrollbar{height:5px}
.shelf-rail::-webkit-scrollbar-thumb{background:rgba(16,18,20,.18)}
.stitch{flex:0 0 208px;scroll-snap-align:start;display:block}
.stitch .ph{background:var(--studio);aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.stitch .ph img{width:100%;height:100%;object-fit:contain;transition:transform .35s}
.stitch:hover .ph img{transform:scale(1.05)}
.stitch .ph span{font-size:12px;color:#2E3236;text-align:center;padding:0 10px}
.stitch b{display:block;margin-top:11px;font-size:14.5px;font-weight:500;transition:color .2s}
.stitch:hover b{color:var(--copper)}
.shelf-hd .more{font-size:13px}
@media(max-width:767.98px){.stitch{flex:0 0 148px}.shelf-rail{padding:0 20px 12px;margin:0 -20px}}

/* ---------- 产品中心：整块式分区 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:18px;padding-bottom:80px}
@media(max-width:991.98px){.bento{grid-template-columns:1fr}}
.btile{position:relative;display:grid;cursor:pointer;grid-template-columns:1fr 44%;align-items:center;
  background:var(--studio);overflow:hidden;min-height:300px;transition:.25s}
.btile:hover{background:#C2C2C2}
.btile.b7{grid-column:span 7}
.btile.b5{grid-column:span 5}
.btile.b12{grid-column:span 12;min-height:240px}
.btxt{padding:36px 8px 32px 36px;position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-start;height:100%}
.btile .no{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--copper)}
.btile h2{margin-top:10px;font-size:clamp(24px,2.6vw,34px);letter-spacing:-.03em}
.btile p{margin-top:12px;font-size:14px;line-height:1.85;color:#2E3236;max-width:42ch}
.bsub{margin-top:18px;display:flex;flex-wrap:wrap;gap:6px 14px;max-width:44ch}
.bsub a{font-size:12.5px;color:#22262A;background:rgba(255,255,255,.6);border:1px solid rgba(16,18,20,.14);padding:5px 10px;transition:.18s}
.bsub a:hover{color:var(--copper);border-color:var(--copper);background:#fff}
.btile .barrow{display:inline-block;margin-top:auto;padding-top:22px;font-size:13.5px;color:var(--ink);
  border-bottom:1px solid var(--ink);padding-bottom:2px}
.btile:hover .barrow{color:var(--copper);border-color:var(--copper)}
.btile figure{margin:0;position:relative;min-height:260px;overflow:hidden}
.btile figure img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.btile:hover figure img{transform:scale(1.04)}
.btile figure span{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:13px;color:#2E3236;text-align:center;padding:0 20px}
@media(max-width:767.98px){
  .btile{grid-template-columns:1fr;min-height:0}
  .btxt{padding:26px 22px 6px}
  .btile figure{height:220px}
}

.btile .tile-hit{position:absolute;inset:0;z-index:1}
.btile .btxt,.btile figure{position:relative;z-index:2;pointer-events:none}
.btile .bsub a,.btile .barrow{pointer-events:auto}

/* ---------- 统一产品卡（清晰版） ---------- */
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(238px,1fr));gap:34px 26px;margin:0}
@media(max-width:767.98px){.pgrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 14px}}
.pcard{display:block}
.pcard .ph{background:var(--studio);aspect-ratio:1/1;overflow:hidden;display:flex;align-items:center;justify-content:center}
.pcard .ph img{width:100%;height:100%;object-fit:contain;transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.pcard:hover .ph img{transform:scale(1.04)}
.pcard .ph span{font-size:13px;color:#2E3236;text-align:center;padding:0 14px;line-height:1.6}
.pcard .cap{margin-top:13px;display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.pcard .cap b{font-weight:500;font-size:15.5px;letter-spacing:-.01em;transition:color .2s}
.pcard:hover .cap b{color:var(--copper)}
.pcard .cap i{font-family:var(--mono);font-style:normal;font-size:12px;color:var(--copper);
  opacity:0;transform:translateX(-4px);transition:.2s}
.pcard:hover .cap i{opacity:1;transform:none}

.catblock{padding:66px 0;border-top:1px solid var(--line)}
.cb-hd{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:34px;flex-wrap:wrap}
.cb-hd h2{font-size:clamp(22px,2.4vw,32px);margin-top:12px}
.cb-hd p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--ink-2);max-width:58ch}
.subnav{margin-top:18px;font-size:13.5px;color:var(--ink-3);line-height:2}
.subnav a{color:var(--ink-2);border-bottom:1px solid transparent}
.subnav a:hover{color:var(--copper);border-color:var(--copper)}
.subnav a + a::before{content:"·";margin:0 10px;color:#B9B5AB;display:inline-block}

/* ---------- 参考 cha-tou：居中横幅 + 分类条 + 四列网格 ---------- */
.hero-band{background:#EFEDE6;padding:38px 0 30px;text-align:center;border-bottom:1px solid var(--line)}
.hero-band h1{font-size:clamp(26px,3.2vw,40px);letter-spacing:-.03em;line-height:1.15;font-weight:500}
.hero-band .crumb{margin-top:14px;font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:#5A6066}
.hero-band .crumb a{color:#3B4045}
.hero-band .crumb a:hover{color:var(--copper)}
.hero-band .crumb span{margin:0 8px;color:#6B7176}
.hero-band .bandlead{max-width:62ch;margin:18px auto 0;font-size:14.5px;line-height:1.85;color:#2E3236}

.catbar{display:flex;justify-content:center;flex-wrap:wrap;gap:10px 34px;padding:26px 0;
  border-bottom:1px solid var(--line)}
.catbar a{font-size:15px;color:var(--ink-2);padding-bottom:6px;border-bottom:2px solid transparent;transition:.2s}
.catbar a:hover{color:var(--ink)}
.catbar a.on{color:var(--copper);border-color:var(--copper);font-weight:500}

.pgrid4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:46px 30px;margin:0}
@media(max-width:1099.98px){.pgrid4{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:767.98px){.pgrid4{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 16px}}
.pgrid4 .pcard .ph{background:var(--studio)}
.pgrid4 .pcard .cap{margin-top:13px;justify-content:center;text-align:center}
.pgrid4 .pcard .cap b{font-size:15.5px;line-height:1.5;font-weight:500;text-align:center;color:#22262A}
.pgrid4 .pcard .cap i{display:none}

.center-sec{padding:64px 0;border-top:1px solid var(--line)}
.center-sec:first-of-type{border-top:0}
.center-sec .hd{text-align:center;margin-bottom:38px}
.center-sec .hd .no{font-family:var(--mono);font-size:10.5px;letter-spacing:.22em;color:var(--copper)}
.center-sec .hd h2{font-size:clamp(24px,2.8vw,36px);margin-top:12px}
.center-sec .hd p{margin:14px auto 0;max-width:60ch;font-size:14.5px;line-height:1.9;color:var(--ink-2)}
.center-sec .hd .more{display:inline-block;margin-top:16px;font-size:13px}

/* ---------- 产品详情（无侧栏） ---------- */
.pd-main{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:56px;
  align-items:start;padding:48px 0 8px}
@media(max-width:991.98px){.pd-main{grid-template-columns:1fr;gap:28px}}
.pd-main .fig{margin:0;background:var(--studio)}
.pd-main .fig img{display:block;width:100%;height:auto}
.pd-main .info h2{font-size:19px;margin-bottom:18px}
.feats{margin:0;border-top:1px solid var(--line)}
.feats li{padding:13px 0;border-bottom:1px solid var(--line);font-size:14.2px;
  line-height:1.85;color:var(--ink-2);display:grid;grid-template-columns:58px 1fr;gap:14px}
.feats li b{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--copper);
  font-weight:400;padding-top:5px}
.pd-cta{margin-top:28px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.pd-cta .tel-line{font-family:var(--mono);font-size:15px}
.pd-cta .tel-line small{display:block;font-family:var(--sans);font-size:11px;
  letter-spacing:.1em;color:var(--ink-3);margin-top:4px}
.spec-block{padding:36px 0 8px}
.spec-block h2{font-size:clamp(20px,2.2vw,26px)}
.spec-block .note{margin-top:10px;font-size:12.5px;color:var(--ink-3);font-family:var(--mono);letter-spacing:.08em}
.related{padding:64px 0 90px;border-top:1px solid var(--line);margin-top:56px}
.related h2{font-size:clamp(20px,2.2vw,26px);text-align:center}
.related .pgrid4{margin-top:34px}

/* 返回上一级 */
.back-row{padding-top:26px}
.back-btn{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:#3A3F45;transition:.18s}
.back-btn:hover{color:var(--copper)}
.back-btn i{font-style:normal;font-family:var(--mono);font-size:13px;transition:transform .18s}
.back-btn:hover i{transform:translateX(-3px)}