/* ===== 景腾箱包 · 电子画册 设计系统 ===== */
:root{
  --ink:#16181C;
  --ink2:#41444C;
  --muted:#7A756D;
  --line:#E6E0D6;
  --paper:#FAF7F2;
  --card:#FFFFFF;
  --tile:#F2EDE5;
  --accent:#D1522C;
  --accent2:#B8451F;
  --accent-soft:#FBEDE6;
  --green:#2F6D52;
  --radius:3px;
  --shadow:0 1px 2px rgba(20,20,20,.04), 0 8px 24px rgba(20,20,20,.05);
  --shadow-lg:0 18px 48px rgba(20,20,20,.12);
  --max:1280px;
  --ff:"Inter","Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--ff);font-size:15px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
@media (max-width:640px){.wrap{padding:0 16px}}

/* ---------- 通栏提示 ---------- */
.topbar{
  background:var(--ink);color:#F4EFE7;font-size:12.5px;letter-spacing:.02em;
  text-align:center;padding:7px 16px;
}
.topbar b{color:#fff;font-weight:600}
.topbar .sep{opacity:.35;margin:0 8px}

/* ---------- 头部 ---------- */
header.site{
  position:sticky;top:0;z-index:60;background:rgba(250,247,242,.86);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:28px;height:66px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand .mark{
  width:34px;height:34px;border-radius:50%;background:var(--ink);color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:700;letter-spacing:.04em;
}
.brand .bt{line-height:1.15}
.brand .bt b{display:block;font-size:15px;letter-spacing:.06em;font-weight:700}
.brand .bt span{display:block;font-size:10px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase}
.nav .links{display:flex;gap:26px;font-size:14px;flex:1}
.nav .links a{padding:6px 0;color:var(--ink2);position:relative;white-space:nowrap}
.nav .links a:hover{color:var(--ink)}
.nav .links a.on{color:var(--ink);font-weight:600}
.nav .links a.on:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--accent)}
.nav .right{display:flex;align-items:center;gap:10px;flex:none}
.lang{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:#fff}
.lang button{padding:5px 11px;font-size:12px;color:var(--muted);letter-spacing:.04em}
.lang button.on{background:var(--ink);color:#fff}
.cartbtn{
  display:inline-flex;align-items:center;gap:8px;border:1px solid var(--ink);
  border-radius:999px;padding:7px 14px;font-size:13px;font-weight:600;background:#fff;
  transition:.18s;
}
.cartbtn:hover{background:var(--ink);color:#fff}
.cartbtn .n{
  min-width:18px;height:18px;border-radius:9px;background:var(--accent);color:#fff;
  font-size:11px;display:grid;place-items:center;padding:0 5px;font-weight:700;
}
.cartbtn:hover .n{background:#fff;color:var(--accent)}
.burger{display:none;width:38px;height:38px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.burger span{display:block;width:16px;height:1.5px;background:var(--ink);margin:4px auto}
@media (max-width:940px){
  .nav{gap:14px}
  .nav .links{
    display:none;position:absolute;left:0;right:0;top:66px;background:#fff;
    flex-direction:column;gap:0;padding:8px 20px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)
  }
  .nav .links.open{display:flex}
  .nav .links a{padding:12px 0;border-bottom:1px solid #F1ECE4}
  .nav .links a.on:after{display:none}
  .burger{display:block}
  .brand .bt span{display:none}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;font-size:14px;font-weight:600;
  border:1px solid var(--ink);background:var(--ink);color:#fff;transition:.18s;white-space:nowrap;
}
.btn:hover{background:var(--accent);border-color:var(--accent)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.accent{background:var(--accent);border-color:var(--accent)}
.btn.accent:hover{background:var(--accent2);border-color:var(--accent2)}
.btn.sm{height:36px;padding:0 15px;font-size:13px}
.btn.block{width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn:disabled:hover{background:var(--ink);border-color:var(--ink)}

/* ---------- 标题 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:11.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:14px;
}
.eyebrow:before{content:"";width:22px;height:1px;background:var(--accent)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.12}
h1{font-size:clamp(34px,5.2vw,62px)}
h2{font-size:clamp(24px,3.2vw,38px)}
h3{font-size:18px;letter-spacing:-.01em}
.lead{font-size:16px;color:var(--ink2);line-height:1.75;max-width:60ch}
.muted{color:var(--muted)}
.mono{font-family:var(--mono);letter-spacing:0}
.section{padding:72px 0}
.section.tight{padding:48px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head .more{font-size:13px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:2px;white-space:nowrap}
.section-head .more:hover{color:var(--ink);border-color:var(--ink)}
@media (max-width:640px){.section{padding:48px 0}}

/* ---------- HERO ---------- */
.hero{padding:56px 0 34px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1 span{color:var(--accent)}
.hero .lead{margin:20px 0 28px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}
.hero .stats{display:flex;gap:34px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);flex-wrap:wrap}
.hero .stats b{display:block;font-size:26px;letter-spacing:-.02em}
.hero .stats span{font-size:12px;color:var(--muted);letter-spacing:.04em}
.hero-art{position:relative;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.hero-art .cell{
  background:var(--tile);border-radius:var(--radius);position:relative;overflow:hidden;
  aspect-ratio:1/1.08;display:grid;place-items:center;padding:10px;
}
.hero-art .cell img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.hero-art .cell:nth-child(2){transform:translateY(-18px)}
.hero-art .cell:nth-child(3){transform:translateY(8px)}
.hero-art .badge{
  position:absolute;right:-6px;bottom:26px;background:var(--ink);color:#fff;
  padding:10px 16px;border-radius:2px;font-size:12px;letter-spacing:.06em;z-index:2;
}
@media (max-width:940px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero{padding:34px 0 18px}
  .hero .stats{gap:24px;margin-top:30px}
  .hero-art{grid-template-columns:repeat(4,1fr)}
  .hero-art .cell:nth-child(2),.hero-art .cell:nth-child(3){transform:none}
  .hero-art .cell:nth-child(4){display:none}
  .hero-art .badge{display:none}
}

/* ---------- 系列卡 ---------- */
.series-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:940px){.series-grid{grid-template-columns:1fr}}
.series-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;transition:.2s;display:flex;flex-direction:column;gap:16px;
}
.series-card:hover{border-color:var(--ink);box-shadow:var(--shadow)}
.series-card .thumbs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
.series-card .thumbs div{background:var(--tile);aspect-ratio:1/1.1;display:grid;place-items:center;padding:4px;border-radius:2px;min-width:0;overflow:hidden}
.series-card .thumbs img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.series-card h3{font-size:17px}
.series-card .en{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.series-card p{margin:0;font-size:13px;color:var(--ink2);line-height:1.65}
.series-card .foot{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.series-card .foot .cnt{font-size:12px;color:var(--muted)}
.series-card .go{font-size:13px;font-weight:600;color:var(--accent)}

/* ---------- 分类 chips ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media (max-width:940px){.cat-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.cat-grid{grid-template-columns:repeat(2,1fr)}}
.cat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 14px;
  display:flex;flex-direction:column;gap:6px;transition:.18s;position:relative;overflow:hidden;
}
.cat-card:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.cat-card:hover .n,.cat-card:hover .cn{color:rgba(255,255,255,.7)}
.cat-card .cn{font-size:15px;font-weight:600}
.cat-card .n{font-size:11px;color:var(--muted);letter-spacing:.06em}
.cat-card .cnt{font-size:11px;color:var(--accent);font-weight:700}
.cat-card:hover .cnt{color:#fff}

/* ---------- 产品卡 ---------- */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media (max-width:1180px){.grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:760px){.grid{grid-template-columns:repeat(2,1fr);gap:12px}}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.2s;position:relative;
}
.card:hover{border-color:#C9C2B6;box-shadow:var(--shadow);transform:translateY(-2px)}
.card .pic{background:var(--tile);aspect-ratio:1/1;display:grid;place-items:center;padding:8px;position:relative;overflow:hidden}
.card .pic img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply;transition:transform .35s ease}
.card:hover .pic img{transform:scale(1.04)}
.card .quick{
  position:absolute;right:8px;bottom:8px;background:var(--ink);color:#fff;border-radius:999px;
  font-size:11.5px;font-weight:600;padding:6px 11px;opacity:0;transform:translateY(6px);transition:.2s;
}
.card:hover .quick{opacity:1;transform:none}
@media (hover:none){.card .quick{opacity:1;transform:none}}
.card .quick:hover{background:var(--accent)}
.card .info{padding:12px 13px 14px;display:flex;flex-direction:column;gap:5px;border-top:1px solid #F2EDE5}
.card .code{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.04em;display:flex;justify-content:space-between;gap:6px}
.card .code .f{color:var(--accent);font-size:10px;letter-spacing:.08em;font-weight:700}
.card .name{font-size:14.5px;font-weight:600;line-height:1.3;letter-spacing:-.01em}
.card .name em{font-style:normal;display:block;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.02em;margin-top:1px}
.card .meta{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:3px}
.card .tag{font-size:11px;color:var(--muted)}
.card .price{font-size:13px;font-weight:700;color:var(--ink)}
.card .price .u{font-size:10.5px;font-weight:400;color:var(--muted);margin-left:2px}
.card .price.ask{font-weight:500;color:var(--accent);font-size:12px}

/* ---------- 工具栏 ---------- */
.toolbar{
  position:sticky;top:66px;z-index:40;background:rgba(250,247,242,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);padding:12px 0;
}
.toolbar .row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.search{
  flex:1;min-width:240px;display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:0 14px;height:40px;
}
.search input{border:none;outline:none;width:100%;background:none;font-size:14px}
.search svg{flex:none;color:var(--muted)}
.search .kbd{font-size:10px;color:var(--muted);border:1px solid var(--line);border-radius:3px;padding:1px 5px;white-space:nowrap}
select.sel,button.chip{
  height:38px;border:1px solid var(--line);border-radius:999px;background:#fff;padding:0 14px;font-size:13px;
  color:var(--ink2);display:inline-flex;align-items:center;gap:6px;
}
select.sel{appearance:none;padding-right:30px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%237A756D'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}
button.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.chips{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.chips .lbl{font-size:11.5px;color:var(--muted);letter-spacing:.06em;margin-right:2px}
.swatches{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.sw{width:26px;height:26px;border-radius:50%;border:1px solid var(--line);position:relative;display:grid;place-items:center;font-size:10px;color:#fff;transition:.15s}
.sw.on{box-shadow:0 0 0 2px var(--paper),0 0 0 3.5px var(--ink)}
.result{font-size:12.5px;color:var(--muted);margin-left:auto;white-space:nowrap}
.filters-more{display:none;margin-top:10px;padding-top:10px;border-top:1px dashed var(--line);gap:14px;flex-wrap:wrap}
.filters-more.open{display:flex}
@media (max-width:760px){.toolbar{top:66px}}

/* ---------- 分页 / 加载 ---------- */
.loadmore{display:grid;place-items:center;padding:34px 0 0}
.loadmore .progress{font-size:12px;color:var(--muted);margin-bottom:12px}
.empty{text-align:center;padding:80px 0;color:var(--muted)}
.empty b{display:block;font-size:16px;color:var(--ink);margin-bottom:6px}

/* ---------- 详情页 ---------- */
.pd{display:grid;grid-template-columns:1.02fr .98fr;gap:46px;padding:34px 0 10px}
@media (max-width:940px){.pd{grid-template-columns:1fr;gap:22px}}
.pd .gallery{position:sticky;top:96px;align-self:start}
@media (max-width:940px){.pd .gallery{position:static}}
.pd .stage{
  background:var(--tile);border-radius:var(--radius);aspect-ratio:1/1;display:grid;place-items:center;
  padding:26px;position:relative;cursor:zoom-in;
}
.pd .stage img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.pd .stage .zoomhint{
  position:absolute;right:12px;bottom:12px;font-size:11px;color:var(--muted);background:rgba(255,255,255,.8);
  border:1px solid var(--line);border-radius:999px;padding:4px 10px;
}
.pd .thumbs{display:flex;gap:8px;margin-top:10px}
.pd .thumbs a{background:var(--tile);width:72px;height:72px;border-radius:2px;display:grid;place-items:center;border:1px solid transparent}
.pd .thumbs img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.pd .thumbs a.on{border-color:var(--ink)}
.pd .crumb{font-size:12px;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.pd .crumb a:hover{color:var(--ink)}
.pd .series-tag{display:inline-flex;align-items:center;gap:6px;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);font-weight:700}
.pd .code{font-family:var(--mono);font-size:26px;letter-spacing:.02em;margin:6px 0 4px}
.pd h1{font-size:clamp(26px,3.4vw,40px);letter-spacing:-.02em}
.pd .nameen{font-size:13px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-top:4px}
.pd .chipsline{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}
.pd .pill{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:5px 11px;color:var(--ink2);background:#fff;display:inline-flex;align-items:center;gap:6px}
.pd .pill .dot{width:8px;height:8px;border-radius:50%;display:inline-block}
.pricebox{border:1px solid var(--line);background:#fff;border-radius:var(--radius);padding:18px;margin:18px 0}
.pricebox .hd{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:12px}
.pricebox .hd .t{font-size:12px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.pricebox .hd .cur{font-size:11px;color:var(--muted)}
.sizelist{display:grid;gap:8px}
.sizerow{
  display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;border:1px solid var(--line);
  border-radius:2px;padding:10px 12px;cursor:pointer;transition:.15s;background:#fff;
}
.sizerow.on{border-color:var(--ink);background:var(--accent-soft)}
.sizerow .sz{font-weight:700;font-size:14px}
.sizerow .sz small{display:block;font-weight:400;font-size:10.5px;color:var(--muted)}
.sizerow .note{font-size:11.5px;color:var(--muted)}
.sizerow .p{font-size:16px;font-weight:700;font-family:var(--mono)}
.sizerow .p small{font-size:11px;font-weight:400;color:var(--muted);font-family:var(--ff)}
/* 档位 × 尺寸 选择器 */
.grades{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-bottom:12px}
.gbtn{border:1px solid var(--line);border-radius:2px;background:#fff;padding:10px 8px;text-align:left;cursor:pointer;transition:.15s;min-width:0}
.gbtn .gz{display:block;font-size:13px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gbtn .gw{display:block;font-size:10.5px;color:var(--muted);margin-top:2px;font-family:var(--mono)}
.gbtn:hover{border-color:var(--ink2)}
.gbtn.on{border-color:var(--ink);background:var(--accent-soft);box-shadow:inset 0 -2px 0 var(--accent)}
.szline{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.schip{display:flex;flex-direction:column;gap:1px;border:1px solid var(--line);border-radius:2px;background:#fff;padding:8px 12px;cursor:pointer;transition:.15s;min-width:78px}
.schip .sk{font-size:14px;font-weight:700;line-height:1.1}
.schip .sf{font-size:10.5px;color:var(--muted);white-space:nowrap}
.schip .sp{font-size:12px;font-family:var(--mono);color:var(--accent);font-weight:600}
.schip:hover{border-color:var(--ink2)}
.schip.on{border-color:var(--ink);background:var(--accent-soft)}
.pricerow{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;border-top:1px dashed var(--line);padding-top:12px}
.pricerow b{font-size:34px;font-family:var(--mono);letter-spacing:-.02em;color:var(--ink)}
.pricerow .pmeta{font-size:12px;color:var(--muted)}
@media (max-width:560px){.grades{grid-template-columns:repeat(2,minmax(0,1fr))}}
.tier{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.tier span{font-size:11px;background:var(--tile);padding:4px 9px;border-radius:2px;color:var(--ink2)}
.orderbox{display:grid;grid-template-columns:1fr auto;gap:12px;margin-top:16px}
@media (max-width:480px){.orderbox{grid-template-columns:1fr}}
.qty{display:flex;align-items:center;border:1px solid var(--line);border-radius:999px;background:#fff;height:44px;overflow:hidden}
.qty button{width:38px;height:100%;font-size:16px;color:var(--ink2)}
.qty button:hover{background:var(--tile)}
.qty input{width:52px;text-align:center;border:none;outline:none;background:none;font-family:var(--mono);font-size:14px;height:100%}
.pd .actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.pd .mini{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:7px 13px;color:var(--ink2);background:#fff}
.pd .mini:hover{border-color:var(--ink);color:var(--ink)}
.spec{margin-top:26px;border-top:1px solid var(--line);padding-top:18px}
.spec dl{display:grid;grid-template-columns:110px 1fr;gap:9px 16px;margin:12px 0 0;font-size:13px}
.spec dt{color:var(--muted)}
.spec dd{margin:0;color:var(--ink)}
.spec .desc{font-size:13.5px;color:var(--ink2);line-height:1.75;margin:0 0 14px}
@media (max-width:560px){.spec dl{grid-template-columns:88px 1fr}}

/* ---------- 询价单 ---------- */
.cart-wrap{display:grid;grid-template-columns:1fr 360px;gap:28px;padding:30px 0 60px;align-items:start}
@media (max-width:940px){.cart-wrap{grid-template-columns:1fr}}
.cartlist{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.cartlist .hd{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.cartrow{display:grid;grid-template-columns:76px 1fr auto;gap:14px;padding:14px 16px;border-bottom:1px solid #F3EEE6;align-items:center}
.cartrow:last-child{border-bottom:none}
.cartrow .th{background:var(--tile);border-radius:2px;aspect-ratio:1/1;display:grid;place-items:center;padding:4px}
.cartrow .th img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.cartrow .cd{font-family:var(--mono);font-size:12px;color:var(--muted)}
.cartrow .nm{font-size:14px;font-weight:600;margin:2px 0 6px}
.cartrow .ctl{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.cartrow select{height:30px;border:1px solid var(--line);border-radius:999px;padding:0 8px;font-size:12px;background:#fff}
.cartrow .q{display:flex;border:1px solid var(--line);border-radius:999px;height:30px;overflow:hidden;background:#fff}
.cartrow .q button{width:26px;font-size:13px}
.cartrow .q input{width:40px;text-align:center;border:none;background:none;font-family:var(--mono);font-size:12px}
.cartrow .sub{text-align:right;font-size:13px;font-weight:700;font-family:var(--mono);white-space:nowrap}
.cartrow .rm{font-size:11px;color:var(--muted);margin-top:4px}
.cartrow .rm:hover{color:var(--accent)}
.summary{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:sticky;top:96px}
.summary h3{margin-bottom:14px}
.summary .line{display:flex;justify-content:space-between;font-size:13px;padding:6px 0;color:var(--ink2)}
.summary .line.total{border-top:1px solid var(--line);margin-top:8px;padding-top:12px;font-size:15px;color:var(--ink);font-weight:700}
.summary label{display:block;font-size:12px;color:var(--muted);margin:12px 0 5px}
.summary input,.summary textarea,.summary select{
  width:100%;border:1px solid var(--line);border-radius:2px;padding:9px 11px;font-size:13px;background:#fff;outline:none;
}
.summary input:focus,.summary textarea:focus,.summary select:focus{border-color:var(--ink)}
.summary textarea{min-height:62px;resize:vertical}
.summary .btns{display:grid;gap:8px;margin-top:16px}
.hint{font-size:11.5px;color:var(--muted);line-height:1.6;margin-top:10px}

/* ---------- 联系 / CTA ---------- */
.ctaband{background:var(--ink);color:#F7F3EC;padding:56px 0;position:relative;overflow:hidden}
.ctaband .in{display:flex;justify-content:space-between;gap:32px;align-items:center;flex-wrap:wrap}
.ctaband h2{color:#fff;max-width:16em}
.ctaband p{color:rgba(247,243,236,.66);font-size:14px;margin:10px 0 0;max-width:52ch}
.ctaband .acts{display:flex;gap:10px;flex-wrap:wrap}
.ctaband .btn{border-color:#fff;background:#fff;color:var(--ink)}
.ctaband .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.ctaband .btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.contacts{display:flex;gap:26px;flex-wrap:wrap;margin-top:26px;font-size:13px;color:rgba(247,243,236,.8)}
.contacts a{border-bottom:1px solid rgba(255,255,255,.25);padding-bottom:1px}
.contacts a:hover{color:#fff;border-color:#fff}

/* ---------- 优势 ---------- */
.adv{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media (max-width:940px){.adv{grid-template-columns:repeat(2,1fr)}}
.adv .it{border-top:2px solid var(--ink);padding-top:14px}
.adv .it b{display:block;font-size:15px;margin-bottom:6px}
.adv .it p{margin:0;font-size:12.5px;color:var(--muted);line-height:1.7}
.adv .it .num{font-family:var(--mono);font-size:11px;color:var(--accent);display:block;margin-bottom:10px}

/* ---------- 页脚 ---------- */
footer.site{border-top:1px solid var(--line);padding:44px 0 30px;margin-top:20px}
footer .fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px}
@media (max-width:760px){footer .fgrid{grid-template-columns:1fr 1fr;gap:20px}}
footer .fbrand b{font-size:16px;letter-spacing:.06em}
footer .fbrand p{font-size:12.5px;color:var(--muted);margin:8px 0 0;line-height:1.7;max-width:30ch}
footer .fcol b{display:block;font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
footer .fcol a{display:block;font-size:12.5px;color:var(--ink2);padding:3px 0;white-space:nowrap;letter-spacing:-.01em}
footer .fcol a:hover{color:var(--accent)}
footer .base{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:34px;padding-top:18px;border-top:1px solid var(--line);font-size:11.5px;color:var(--muted)}
footer .base .adm{opacity:.6}
footer .base .adm:hover{opacity:1;color:var(--ink)}

/* ---------- 轻提示 ---------- */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:var(--ink);color:#fff;
  padding:12px 18px;border-radius:999px;font-size:13px;z-index:200;opacity:0;pointer-events:none;transition:.25s;
  box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:8px;max-width:90vw;
}
.toast.on{opacity:1;transform:translate(-50%,0)}
.toast b{color:#FFD9C7;font-weight:600}

/* ---------- 灯箱 ---------- */
.lightbox{position:fixed;inset:0;background:rgba(16,16,16,.92);z-index:300;display:none;place-items:center;padding:30px}
.lightbox.on{display:grid}
.lightbox img{max-width:92vw;max-height:86vh;object-fit:contain;background:#fff;border-radius:2px}
.lightbox .close{position:absolute;top:18px;right:20px;color:#fff;font-size:22px;width:40px;height:40px;border:1px solid rgba(255,255,255,.3);border-radius:50%}
.lightbox .cap{position:absolute;bottom:16px;left:0;right:0;text-align:center;color:rgba(255,255,255,.75);font-size:12px;letter-spacing:.08em}

/* ---------- 后台 ---------- */
.admin{max-width:1200px;margin:0 auto;padding:26px 24px 80px}
.admin .hd{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:20px;flex-wrap:wrap}
.tabs button{padding:10px 14px;font-size:13.5px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button.on{color:var(--ink);border-color:var(--ink);font-weight:600}
.panel{display:none}
.panel.on{display:block}
.abox{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:16px}
.abox h4{font-size:14px;margin-bottom:12px;display:flex;justify-content:space-between;align-items:center;gap:10px}
.arow{display:grid;grid-template-columns:150px 1fr;gap:12px;align-items:center;margin-bottom:10px}
.arow label{font-size:12.5px;color:var(--muted)}
.arow input,.arow select,.arow textarea{
  width:100%;border:1px solid var(--line);border-radius:2px;padding:8px 10px;font-size:13px;background:#fff;outline:none;
}
.arow input:focus,.arow textarea:focus{border-color:var(--ink)}
.arow textarea{min-height:70px;resize:vertical;font-family:inherit}
@media (max-width:640px){.arow{grid-template-columns:1fr;gap:4px}}
.table{width:100%;border-collapse:collapse;font-size:12.5px}
.table th{text-align:left;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:8px 8px;border-bottom:1px solid var(--line);white-space:nowrap;position:sticky;top:0;background:#fff;z-index:2}
.table td{padding:7px 8px;border-bottom:1px solid #F5F1EA;vertical-align:middle}
.table tr:hover td{background:#FCFAF6}
.table .tth{width:44px}
.table .tth img{width:34px;height:34px;object-fit:contain;background:var(--tile);border-radius:2px;mix-blend-mode:multiply}
.table input.in{width:100%;border:1px solid transparent;background:none;padding:4px 5px;border-radius:2px;font-size:12.5px}
.table input.in:hover{border-color:var(--line)}
.table input.in:focus{border-color:var(--ink);background:#fff;outline:none}
.table .tiny{width:64px}
.scroll{max-height:62vh;overflow:auto;border:1px solid var(--line);border-radius:2px;background:#fff}
.switch{position:relative;display:inline-block;width:34px;height:19px;flex:none}
.switch input{display:none}
.switch i{position:absolute;inset:0;background:#DDD6CB;border-radius:99px;transition:.15s;cursor:pointer}
.switch i:before{content:"";position:absolute;width:13px;height:13px;background:#fff;border-radius:50%;top:3px;left:3px;transition:.15s}
.switch input:checked + i{background:var(--green)}
.switch input:checked + i:before{transform:translateX(15px)}
.mini-note{font-size:11.5px;color:var(--muted);line-height:1.7}
.warn{border-left:3px solid var(--accent);background:var(--accent-soft);padding:10px 12px;font-size:12.5px;color:#7C3319;border-radius:2px;line-height:1.7}
.ok{border-left:3px solid var(--green);background:#EDF5F0;padding:10px 12px;font-size:12.5px;color:#1F4A34;border-radius:2px;line-height:1.7}
.kbd-in{font-family:var(--mono);background:var(--tile);padding:1px 6px;border-radius:2px;font-size:12px}

/* 打印 */
@media print{
  header.site,.topbar,footer.site,.toolbar,.ctaband,.summary .btns{display:none!important}
  body{background:#fff}
  .cart-wrap{grid-template-columns:1fr}
}

/* 纯色款：通用做工细节 */
.pd-details{margin:52px 0 8px;border-top:1px solid var(--line);padding-top:28px}
.pd-details .hdline{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.pd-details .hdline .tip{font-size:12.5px;color:var(--muted)}
.pd-details .dgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media(min-width:900px){.pd-details .dgrid{grid-template-columns:repeat(6,1fr)}}
.pd-details .dcell{display:block;aspect-ratio:1/1;overflow:hidden;background:#fff;border:1px solid var(--line);cursor:zoom-in}
.pd-details .dcell img{width:100%;height:100%;object-fit:contain;display:block;transition:transform .4s}
.pd-details .dcell:hover img{transform:scale(1.04)}

/* 四档对比表 */
.pd-grades{margin:44px 0 8px;border-top:1px solid var(--line);padding-top:28px}
.pd-grades .hdline{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.pd-grades .hdline .tip{font-size:12.5px;color:var(--muted)}
.gtwrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);background:#fff}
.gtable{border-collapse:collapse;width:100%;min-width:720px;font-size:12.5px}
.gtable th,.gtable td{border-bottom:1px solid var(--line);border-right:1px solid var(--line);padding:10px 12px;vertical-align:top;text-align:left}
.gtable thead th{background:var(--tile);font-size:13px;font-weight:700;color:var(--ink);white-space:nowrap}
.gtable thead th small{display:block;font-weight:400;font-size:10.5px;color:var(--muted);font-family:var(--mono);margin-top:2px}
.gtable tbody th{width:88px;background:#FCFAF6;font-weight:600;color:var(--ink2);white-space:nowrap}
.gtable td{color:var(--ink2);line-height:1.55}
.gtable .gt-p{font-family:var(--mono);color:var(--accent);font-weight:600}
@media(max-width:560px){.gtable{font-size:11.5px;min-width:640px}}

/* 首页四档卡 */
.tiergrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
@media(max-width:900px){.tiergrid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.tcard{border:1px solid var(--line);background:#fff;border-radius:var(--radius);padding:16px 16px 14px;display:flex;flex-direction:column;gap:8px;min-width:0}
.tcard .thead{display:flex;align-items:baseline;justify-content:space-between;gap:8px;border-bottom:1px solid var(--line);padding-bottom:8px}
.tcard .thead .nm{font-size:16px;font-weight:700;letter-spacing:-.01em}
.tcard .thead .gsm{font-size:11px;color:var(--accent);font-family:var(--mono);white-space:nowrap}
.tcard .fab{font-size:12px;color:var(--ink2);line-height:1.65;margin:0}
.tcard .craft{font-size:11.5px;color:var(--muted);line-height:1.65;margin:0}
.tcard .craft b{color:var(--ink2);font-weight:600}
.tcard .trows{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px}
.tcard .trows span{font-size:10.5px;background:var(--tile);color:var(--ink2);border-radius:2px;padding:3px 7px}
.tcard .tpr{margin-top:auto;padding-top:8px;font-family:var(--mono);font-size:18px;font-weight:700;color:var(--accent)}
.tcard .tpr em{font-family:var(--ff);font-style:normal;font-size:11px;font-weight:400;color:var(--muted);margin-left:4px}

/* 纯色系列专属价 */
.tsolid{margin-top:14px}
.tsl{display:flex;flex-wrap:wrap;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.tsl .tag{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:var(--ink);border-radius:2px;padding:4px 8px;white-space:nowrap}
.tslitem{font-size:13.5px;color:var(--ink2);white-space:nowrap}
.tslitem b{font-family:var(--mono);font-size:16px;color:var(--accent);margin-left:6px}
.tslitem em{font-style:normal;font-size:11px;color:var(--muted)}
.tslnote{font-size:11.5px;color:var(--muted);flex:1;min-width:200px}
.tsllink{font-size:12.5px;color:var(--ink);border-bottom:1px solid var(--ink);white-space:nowrap}
@media(max-width:640px){.tsl{gap:10px}.tslnote{flex-basis:100%}}