/* ==========================================================================
   BY-DREAM 2026 — catalogue / paper & ink
   独立设计体系（不沿用 2026.temico.com 的卡片式浅色版式）：
     · 衬线标题 + 无衬线正文 + 等宽标签，像一本产品目录而不是电商首页
     · 页头是纸白细线，不再用深蓝通栏和红色目录块
     · 产品大类改成两列索引行（编号 / 名称 / 说明 / 数量），不是 16 张卡片
     · 内页版头、目录册横条、页脚用整块深墨；CTA 用整条品牌红
   ========================================================================== */
:root{
  --ink:#15191b; --ink-2:#3a4143; --mute:#7c8280;
  --paper:#fdfcfa; --bone:#efece5; --bone-2:#e7e2d8;
  --line:#d8d3c7; --line-2:#e7e3da;
  --red:#d0021b; --red-d:#a50116;
  --max:1280px; --head-h:76px;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,"Noto Sans SC",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"Cascadia Mono","Roboto Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);overflow-x:hidden;
  font:16px/1.68 var(--sans);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;color:var(--ink);
  line-height:1.12;letter-spacing:-.006em;text-wrap:balance}
h1{font-size:clamp(2.4rem,4.3vw,3.85rem);line-height:1.04;letter-spacing:-.014em}
h2{font-size:clamp(1.72rem,2.7vw,2.4rem);line-height:1.1}
h3{font-size:1.14rem;line-height:1.3}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 34px}
@media(max-width:640px){.wrap{padding:0 20px}}

/* 标签 / 引文 / 等宽 */
.eyebrow{display:inline-flex;align-items:center;gap:11px;font-family:var(--mono);font-size:.66rem;
  font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--red)}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor;flex:0 0 auto}
.lead{color:var(--ink-2);font-size:1.03rem;max-width:56ch;line-height:1.72}
.mono{font-family:var(--mono)}
.muted{color:var(--mute)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;background:#fff;padding:10px 14px;z-index:99}

/* ---------- 页首细条：一行等宽小字 ---------- */
.topstrip{background:var(--bone);border-bottom:1px solid var(--line);color:var(--mute)}
.topstrip-in{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:34px;
  font-family:var(--mono);font-size:.63rem;letter-spacing:.15em;text-transform:uppercase}
.top-links{display:flex;align-items:center;gap:22px;white-space:nowrap}
.top-lang{letter-spacing:.16em}
.top-mail,.top-tel{color:var(--ink-2);letter-spacing:.06em;text-transform:none;font-size:.72rem}
.top-mail:hover,.top-tel:hover{color:var(--red)}
.top-red{color:var(--red);font-weight:700;letter-spacing:.14em}
.top-red:hover{color:var(--red-d)}
@media(max-width:900px){.top-lang{display:none}}
@media(max-width:700px){.top-mail{display:none}.topstrip-in{min-height:30px}}

/* ---------- 页头：纸白 + 细线 ---------- */
.site-head{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
.head-in{display:flex;align-items:center;gap:30px;min-height:var(--head-h)}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand-logo img{height:36px;width:auto;display:block}
.nav{display:flex;align-items:center;gap:2px}
.nav a{display:inline-flex;align-items:center;height:var(--head-h);padding:0 16px;
  font-size:.72rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-2);
  border-bottom:2px solid transparent;transition:color .15s,border-color .15s}
.nav a:hover{color:var(--red)}
.nav a.on{color:var(--ink);border-bottom-color:var(--red)}
.catalog-wrap{position:static;display:flex;align-items:center}
.catalog-btn{display:inline-flex;align-items:center;gap:10px;height:var(--head-h);padding:0 16px;
  font-size:.72rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-2);
  border-bottom:2px solid transparent}
.catalog-btn:hover{color:var(--red)}
.catalog-btn .caret{border:solid currentColor;border-width:0 1px 1px 0;padding:2.5px;
  transform:rotate(45deg) translateY(-2px);opacity:.7}
.catalog-btn .bars{display:none}
.search{margin-left:auto;display:flex;align-items:center;gap:0}
.search input{width:150px;background:transparent;border:0;border-bottom:1px solid var(--line);
  color:var(--ink);font:inherit;font-size:.8rem;padding:6px 2px;outline:none;transition:border-color .15s,width .2s}
.search input::placeholder{color:var(--mute);font-size:.78rem}
.search input:focus{border-bottom-color:var(--ink);width:190px}
.search button{background:transparent;border:0;color:var(--ink);cursor:pointer;padding:7px 2px 7px 8px;line-height:0;opacity:.6}
.search button:hover{opacity:1;color:var(--red)}
.nav-toggle{display:none}

/* 大菜单 */
.mega{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);z-index:45;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  box-shadow:0 26px 48px rgba(18,20,22,.13);padding:38px 0 26px}
.mega-in{max-width:var(--max);margin:0 auto;padding:0 34px}
.mega-cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
.mega-cols>div{padding:0 26px;border-left:1px solid var(--line-2)}
.mega-cols>div:first-child{padding-left:0;border-left:0}
.mega-cols>div:last-child{padding-right:0}
.mega h4{font-family:var(--mono);font-size:.6rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;
  color:var(--mute);margin:0 0 14px;font-family:var(--mono)}
.mega-grid{display:block}
.mega a{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:7px 0;
  font-size:.86rem;color:var(--ink-2);border-bottom:1px solid var(--line-2)}
.mega a:last-child{border-bottom:0}
.mega a:hover{color:var(--red)}
.mega a span{font-family:var(--mono);font-size:.66rem;color:var(--mute);white-space:nowrap}
.mega-foot{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);display:flex;gap:28px;
  flex-wrap:wrap;align-items:center}
.mega-foot a{font-family:var(--mono);font-size:.64rem;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--red);border:0;padding:0;display:inline}
.mega-foot .muted{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em}
@media(min-width:901px){
  .catalog-wrap:hover .mega,.catalog-wrap:focus-within .mega{display:block}
}
@media(max-width:1080px){.nav a,.catalog-btn{padding:0 12px;letter-spacing:.1em}.brand-logo img{height:32px}}
@media(max-width:900px){
  :root{--head-h:62px}
  .head-in{gap:12px}
  .catalog-wrap{display:none}
  .nav{position:absolute;left:0;right:0;top:100%;background:var(--paper);flex-direction:column;
    align-items:stretch;display:none;padding:4px 0 12px;border-bottom:1px solid var(--line);
    box-shadow:0 22px 36px rgba(18,20,22,.12)}
  .nav a{height:auto;padding:14px 22px;border-bottom:1px solid var(--line-2);font-size:.78rem}
  .nav a.on{border-bottom-color:var(--line-2)}
  .nav-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;margin-left:auto;
    width:44px;height:40px;border:0;background:transparent;cursor:pointer;padding:0 10px}
  .nav-toggle span{display:block;height:1.5px;background:var(--ink);border-radius:1px}
  .nav-toggle span:nth-child(2){width:66%}
  .search{display:none}
  .mega{display:none!important}
  #navstate:checked ~ .nav{display:flex}
}

/* ---------- 按钮 ---------- */
.btn-row{display:flex;gap:22px;flex-wrap:wrap;margin-top:34px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:12px;padding:14px 24px;font-size:.72rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;border:1px solid transparent;background:none;cursor:pointer;
  transition:background .16s,color .16s,border-color .16s}
.btn .arw{font-size:1em;line-height:1;transition:transform .16s}
.btn:hover .arw{transform:translateX(3px)}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--red)}
.btn-ghost{color:var(--ink);border-color:var(--ink);padding:13px 22px}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.link-more{font-family:var(--mono);font-size:.64rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink);border-bottom:1px solid var(--red);padding-bottom:5px;white-space:nowrap}
.link-more:hover{color:var(--red)}

/* ---------- hero：暖纸底、衬线大标题、图片压右下 ---------- */
.hero{background:var(--bone);overflow:hidden}
.hero-in{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);align-items:end;gap:24px;
  max-width:1440px;margin:0 auto;padding:0 0 0 34px}
.hero-txt{padding:76px 30px 62px 0;max-width:600px}
.hero h1{margin:20px 0 22px;max-width:15ch}
.hero .lead{color:var(--ink-2);max-width:42ch}
.hero-art{align-self:end;min-width:0;margin-bottom:-6px}
.hero-art img{width:100%;height:auto}
.hero-facts{border-top:1px solid rgba(21,25,27,.16);margin-top:46px}
.hero-facts-in{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));max-width:1440px;margin:0 auto;
  padding:0 34px}
.hero-facts-in>div{padding:18px 26px 20px;border-left:1px solid rgba(21,25,27,.13)}
.hero-facts-in>div:first-child{border-left:0;padding-left:0}
.hero-facts-in b{display:block;font-family:var(--serif);font-size:1.72rem;font-weight:600;
  letter-spacing:-.02em;line-height:1.05}
.hero-facts-in span{display:block;margin-top:5px;font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--mute)}
@media(max-width:980px){
  .hero-in{grid-template-columns:1fr;padding:0}
  .hero-txt{padding:42px 22px 12px;max-width:none}
  /* 手机端标题在前、产品图在后：图放最上面会把标题挤到首屏外 */
  .hero-art{order:0;padding:6px 22px 18px}
  .hero-facts{margin-top:30px}
  .hero-facts-in{padding:0 22px;grid-template-columns:1fr 1fr}
  .hero-facts-in>div{padding:14px 16px}
  .hero-facts-in>div:nth-child(odd){border-left:0;padding-left:0}
  .hero-facts-in>div:nth-child(n+3){border-top:1px solid rgba(21,25,27,.13)}
  .hero-facts-in b{font-size:1.4rem}
}

/* ---------- 墨色信任条 ---------- */
.trust{background:var(--ink);color:rgba(255,255,255,.58)}
.trust-in{display:flex;justify-content:space-between;gap:28px;padding-block:15px;flex-wrap:wrap;
  font-family:var(--mono);font-size:.62rem;letter-spacing:.16em;text-transform:uppercase}
.trust b{color:#fff;font-weight:600}
.trust-set{display:flex;gap:34px;flex-wrap:wrap}
@media(max-width:760px){.trust-in{flex-direction:column;gap:8px;font-size:.58rem}}

/* ---------- 区块 ---------- */
.section{padding:92px 0}
.section.tight{padding:64px 0}
.section.paper{background:var(--bone)}
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:34px;
  padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:0}
.sec-head>div{max-width:660px}
.sec-head h2{margin-top:14px}
.sec-head p{color:var(--mute);font-size:.94rem;max-width:58ch;margin:12px 0 0;line-height:1.66}
.sec-head.center{display:block;text-align:center;border-bottom:0;padding-bottom:0;margin-bottom:44px}
.sec-head.center>div{max-width:680px;margin:0 auto}
@media(max-width:760px){
  .section{padding:64px 0}.section.tight{padding:48px 0}
  .sec-head{grid-template-columns:1fr;align-items:start;gap:16px}
}

/* ---------- 16 个大类：索引行 ---------- */
.rlist{display:grid;grid-template-columns:1fr 1fr;column-gap:56px}
.rrow{display:grid;grid-template-columns:38px minmax(0,1fr) auto 16px;gap:16px;align-items:start;
  padding:18px 0;border-bottom:1px solid var(--line);transition:background .15s}
.rno{font-family:var(--mono);font-size:.64rem;letter-spacing:.08em;color:var(--red);padding-top:5px}
.rtxt{min-width:0}
.rname{display:block;font-family:var(--serif);font-size:1.1rem;font-weight:600;line-height:1.26;color:var(--ink)}
.rblurb{display:block;margin-top:5px;font-size:.8rem;line-height:1.54;color:var(--mute)}
.rmeta{font-family:var(--mono);font-size:.6rem;letter-spacing:.12em;text-transform:uppercase;color:var(--mute);
  padding-top:6px;white-space:nowrap}
.rarw{color:var(--red);opacity:0;transform:translateX(-5px);transition:opacity .18s,transform .18s;padding-top:2px}
.rrow:hover{background:rgba(255,255,255,.6)}
.rrow:hover .rarw{opacity:1;transform:none}
.rrow:hover .rname{color:var(--red)}
@media(max-width:900px){
  .rlist{grid-template-columns:1fr;column-gap:0}
  .rrow{padding:16px 0;grid-template-columns:30px minmax(0,1fr) auto 12px;gap:12px}
  .rname{font-size:1rem}
  .rblurb{font-size:.78rem}
}

/* ---------- 分组（产品总览） ---------- */
.gsec+.gsec{margin-top:58px}
.ghead{display:flex;align-items:baseline;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding-bottom:13px;border-bottom:2px solid var(--ink)}
.ghead h2{font-size:1.5rem}
.ghead span{font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--mute)}
.gsec .rlist{margin-top:0}

/* ---------- 产品网格 ---------- */
.pgrid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:32px 22px}
.pitem{display:block}
.pitem .ph{aspect-ratio:1/1;background:var(--bone);display:flex;align-items:center;justify-content:center;
  overflow:hidden;position:relative}
.pitem img{width:100%;height:100%;object-fit:contain;padding:9%;mix-blend-mode:multiply;
  transition:transform .5s cubic-bezier(.2,.6,.3,1)}
.pitem:hover img{transform:scale(1.05)}
.pitem b{display:block;margin-top:12px;font-size:.8rem;font-weight:600;line-height:1.4;color:var(--ink);letter-spacing:.005em}
.pitem:hover b{color:var(--red)}
.pitem span{display:block;margin-top:4px;font-family:var(--mono);font-size:.62rem;color:var(--mute);letter-spacing:.06em}
.noimg{width:100%;height:100%;background:var(--bone)}
@media(max-width:1100px){.pgrid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:860px){.pgrid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px 14px}}
@media(max-width:520px){.pgrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px}.pitem b{font-size:.75rem}}

/* ---------- 目录册横条（深墨） ---------- */
.cata-band{background:var(--ink);color:#fff;display:grid;grid-template-columns:190px minmax(0,1fr) auto;
  gap:40px;align-items:center;padding:34px 40px}
.cata-band-pic{min-width:0}
.cata-plate{aspect-ratio:3/4;border:1px solid rgba(255,255,255,.3);display:flex;flex-direction:column;
  justify-content:space-between;padding:16px 15px;background:rgba(255,255,255,.03)}
.cata-plate .cp-top{font-family:var(--mono);font-size:.55rem;letter-spacing:.2em;text-transform:uppercase;
  color:rgba(255,255,255,.6)}
.cata-plate b{display:block;width:24px;height:2px;background:var(--red);margin-bottom:11px}
.cata-plate em{font-family:var(--serif);font-style:normal;font-size:1.42rem;line-height:1.06;color:#fff;
  letter-spacing:-.01em}
.cata-plate .cp-bot{font-family:var(--mono);font-size:.55rem;letter-spacing:.12em;color:rgba(255,255,255,.55)}
.cata-band .eyebrow{color:#ff6a75}
.cata-band h3{color:#fff;font-size:1.62rem;margin:12px 0 10px}
.cata-band p{margin:0;color:rgba(255,255,255,.66);font-size:.92rem;max-width:48ch;line-height:1.62}
.cata-band-act{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.cata-band-act .btn{background:var(--red);color:#fff}
.cata-band-act .btn:hover{background:#fff;color:var(--ink)}
.cata-note{font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;color:rgba(255,255,255,.5)}
@media(max-width:960px){
  .cata-band{grid-template-columns:140px minmax(0,1fr);gap:24px;padding:24px}
  .cata-band-act{grid-column:1/-1;flex-direction:row;align-items:center;gap:20px;flex-wrap:wrap}
}
@media(max-width:600px){
  .cata-band{grid-template-columns:1fr;padding:22px}
  .cata-band-pic{max-width:150px}
}

/* ---------- 流程（大衬线编号） ---------- */
.adv{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:34px}
.adv>div{border-top:2px solid var(--ink);padding-top:22px}
.adv .num{display:block;font-family:var(--serif);font-size:2.1rem;line-height:1;font-weight:600;
  letter-spacing:-.03em;color:var(--ink)}
.adv h3{margin:16px 0 8px;font-size:1.04rem}
.adv p{margin:0;color:var(--mute);font-size:.86rem;line-height:1.6}
@media(max-width:900px){.adv{grid-template-columns:1fr 1fr;gap:26px}}
@media(max-width:520px){.adv{grid-template-columns:1fr;gap:22px}}

/* ---------- 两栏 / 事实表 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}
.split .prose p{color:var(--ink-2)}
.split .prose p.lead{color:var(--ink)}
.facts{list-style:none;border-top:2px solid var(--ink)}
.facts li{display:grid;grid-template-columns:104px 1fr;gap:18px;padding:14px 0;border-bottom:1px solid var(--line);
  font-size:.88rem;color:var(--ink-2)}
.facts b{font-family:var(--mono);font-size:.6rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--mute);font-weight:600;padding-top:4px}
@media(max-width:860px){.split{grid-template-columns:1fr;gap:34px}}

/* ---------- 覆盖范围 ---------- */
.covers{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.covers li{border-bottom:1px solid var(--line);padding:12px 0 12px 22px;position:relative;
  font-size:.9rem;color:var(--ink-2)}
.covers li::before{content:"";position:absolute;left:0;top:20px;width:10px;height:1px;background:var(--red)}
@media(max-width:760px){.covers{grid-template-columns:1fr}}

/* ---------- 空大类 ---------- */
.range-empty{background:var(--bone);border-left:3px solid var(--red);padding:34px 38px;
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center}
.range-empty h2{font-size:1.34rem;margin-bottom:10px}
.range-empty p{margin:0;color:var(--ink-2);font-size:.92rem;max-width:62ch}
@media(max-width:760px){.range-empty{grid-template-columns:1fr;gap:18px;padding:24px}}

/* ---------- 相关大类 ---------- */
.rel{margin-top:66px;border-top:1px solid var(--line);padding-top:32px}
.rel h2{font-size:1.14rem;margin-bottom:18px}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1px;background:var(--line);
  border:1px solid var(--line)}
.rel-grid a{background:var(--paper);padding:15px 18px;font-size:.88rem;color:var(--ink);font-weight:600;
  display:flex;justify-content:space-between;gap:12px;align-items:baseline}
.rel-grid a:hover{background:var(--bone);color:var(--red)}
.rel-grid a span{font-family:var(--mono);font-size:.6rem;font-weight:400;color:var(--mute);white-space:nowrap}

/* ---------- CTA：品牌红通栏 ---------- */
.cta{background:var(--red);color:#fff;padding:66px 0}
.cta-in{display:flex;align-items:center;justify-content:space-between;gap:44px;flex-wrap:wrap}
.cta h2{color:#fff;max-width:22ch;font-size:clamp(1.6rem,2.4vw,2.15rem)}
.cta p{color:rgba(255,255,255,.82);margin:14px 0 0;max-width:48ch;font-size:.94rem}
.cta .btn{background:#fff;color:var(--ink)}
.cta .btn:hover{background:var(--ink);color:#fff}

/* ---------- 页脚：深墨 + 大字标 ---------- */
.site-foot{background:#111416;color:rgba(255,255,255,.62);padding:70px 0 0;font-size:.86rem;overflow:hidden}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:40px}
.site-foot h4{font-family:var(--mono);font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;
  color:rgba(255,255,255,.5);margin:0 0 15px;font-weight:600}
.site-foot p{margin:0 0 8px}
.site-foot a:hover{color:#fff}
.foot-brand{display:flex;align-items:center;margin-bottom:16px}
.foot-brand img{height:26px;width:auto}
.foot-legal{font-family:var(--mono);font-size:.62rem;letter-spacing:.08em;color:rgba(255,255,255,.34);margin-top:12px}
.foot-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:44px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.14);font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;
  color:rgba(255,255,255,.42);text-transform:uppercase}
.foot-word{display:block;width:100%;height:auto;margin:34px 0 0;user-select:none}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr;gap:30px}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}

/* ---------- 内页版头（深墨） ---------- */
.page-head{background:var(--ink);color:#fff;padding:72px 0 54px}
.page-head h1{color:#fff;margin:18px 0 16px}
.page-head .lead{color:rgba(255,255,255,.66);max-width:62ch;margin:0}
.page-head .eyebrow{color:#ff6a75}
.page-head .note{color:rgba(255,255,255,.55);font-size:.84rem;max-width:62ch;margin:14px 0 0;
  padding-left:12px;border-left:1px solid rgba(255,255,255,.2)}
.crumb{font-family:var(--mono);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--mute);display:flex;gap:9px;flex-wrap:wrap;align-items:center}
.crumb a:hover{color:var(--ink)}
.crumb span{color:var(--line)}
/* 面包屑放在页面白底上时（产品详情），需要留白且颜色变深 */
.wrap>.crumb{padding:32px 0 0}
.page-head .crumb{color:rgba(255,255,255,.5)}
.page-head .crumb a{color:rgba(255,255,255,.72)}
.page-head .crumb a:hover{color:#fff}
.page-head .crumb span{color:rgba(255,255,255,.3)}
@media(max-width:640px){.page-head{padding:46px 0 36px}}

/* ---------- 通用卡片列表 ---------- */
.list{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1px;background:var(--line);
  border:1px solid var(--line)}
.list .item{background:var(--paper);padding:28px 26px 30px;min-height:186px;display:flex;flex-direction:column}
.list .item h3{margin:0 0 9px;font-size:1.06rem}
.list .item p{color:var(--mute);font-size:.87rem;margin:0;line-height:1.6}
.list.four{grid-template-columns:repeat(4,minmax(0,1fr));gap:1px}
@media(max-width:1024px){.list.four{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.list.four{grid-template-columns:1fr}}

/* ---------- 产品详情 ---------- */
.detail{display:grid;grid-template-columns:1fr 1fr;gap:64px;padding-block:44px 64px;align-items:start}
.detail .pic{background:var(--bone);display:flex;align-items:center;justify-content:center}
.detail .pic img{mix-blend-mode:multiply;width:100%}
.detail h1{font-size:clamp(1.8rem,3vw,2.5rem);margin:14px 0 16px}
.detail .lead{color:var(--mute);font-size:.92rem}
.detail .lead b{color:var(--ink);font-family:var(--mono);font-size:.86rem;letter-spacing:.08em}
.sizes{margin:22px 0 0;font-size:.9rem;color:var(--ink-2)}
.sizes b{display:block;font-family:var(--mono);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--mute);margin-bottom:7px;font-weight:600}
.spec{list-style:none;margin:26px 0 0;border-top:2px solid var(--ink)}
.spec li{display:grid;grid-template-columns:126px 1fr;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);
  font-size:.88rem;color:var(--ink-2)}
.spec b{font-family:var(--mono);font-size:.6rem;letter-spacing:.12em;text-transform:uppercase;color:var(--mute);
  font-weight:600;padding-top:4px}
.pdesc{color:var(--ink-2);font-size:.92rem}
.pnote{margin:26px 0 0;padding:14px 16px;background:var(--bone);border-left:3px solid var(--red);
  color:var(--ink-2);font-size:.84rem;line-height:1.62}
@media(max-width:820px){.detail{grid-template-columns:1fr;gap:26px;padding-block:30px 46px}}

/* ---------- 联系页 ---------- */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:68px;padding-block:60px}
.info{list-style:none;border-top:2px solid var(--ink)}
.info li{display:grid;grid-template-columns:96px 1fr;gap:16px;padding:15px 0;border-bottom:1px solid var(--line);
  font-size:.9rem;color:var(--ink-2)}
.info b{font-family:var(--mono);font-size:.6rem;letter-spacing:.13em;text-transform:uppercase;color:var(--mute);
  font-weight:600;padding-top:4px}
.loc+.loc{margin-top:38px}
.loc-h{margin:0;font-family:var(--mono);font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--red)}
.loc-co{margin:9px 0 14px;font-family:var(--serif);font-size:1.16rem;font-weight:600;color:var(--ink)}
form.enq{background:var(--bone);padding:34px 32px}
form.enq label{display:block;font-family:var(--mono);font-size:.6rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--mute);margin:18px 0 6px;font-weight:600}
form.enq input,form.enq textarea{width:100%;padding:11px 12px;border:1px solid var(--line);background:var(--paper);
  font:inherit;font-size:.94rem;color:var(--ink);outline:none;transition:border-color .15s}
form.enq input:focus,form.enq textarea:focus{border-color:var(--ink)}
form.enq textarea{min-height:108px;resize:vertical}
form.enq .btn{margin-top:22px}
@media(max-width:860px){.contact{grid-template-columns:1fr;gap:32px;padding-block:36px}}

/* ---------- 证书 ---------- */
.certs{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1px;background:var(--line);
  border:1px solid var(--line)}
.cert{background:var(--paper);padding:28px 26px 30px;display:flex;flex-direction:column}
.cert-icon{margin-bottom:16px}
.cert-icon b{font-family:var(--serif);font-size:1.5rem;font-weight:600;letter-spacing:-.02em;color:var(--red)}
.cert h3{font-size:1.04rem;margin:0 0 6px}
.cert .issuer{font-family:var(--mono);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--mute);margin:0 0 13px}
.cert p{font-size:.86rem;color:var(--ink-2);margin:0;line-height:1.6}

/* ---------- 搜索 ---------- */
.srch{max-width:820px;margin:0}
.srch form{display:flex;gap:0;margin-bottom:12px;border-bottom:1px solid var(--ink)}
.srch input{flex:1;border:0;border-bottom:0;background:transparent;padding:14px 4px;font:inherit;font-size:1.05rem;outline:none}
.srch button{border:0;background:var(--ink);color:#fff;padding:0 26px;font:inherit;font-size:.68rem;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;cursor:pointer}
.srch button:hover{background:var(--red)}
.srch .hint{font-family:var(--mono);font-size:.62rem;letter-spacing:.1em;color:var(--mute);text-transform:uppercase}
.srch .res{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);
  border:1px solid var(--line);margin-top:24px}
.srch .res a{background:var(--paper);padding:13px 15px;font-size:.86rem}
.srch .res a b{display:block;color:var(--ink);font-size:.86rem;font-weight:600;line-height:1.4}
.srch .res a span{display:block;margin-top:3px;color:var(--mute);font-family:var(--mono);font-size:.6rem}
.srch .res a:hover{background:var(--bone)}
.srch .res a:hover b{color:var(--red)}
@media(max-width:780px){.srch .res{grid-template-columns:1fr}}

@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
:focus-visible{outline:2px solid var(--red);outline-offset:3px}