/* ============================================================
   Lanqiduo Toys — catalog site stylesheet
   Flat, print-friendly, no build step.
   ============================================================ */

/* ---------- tokens ---------- */
:root{
  --paper:#FCFBF9;
  --paper-2:#F4F1EC;
  --ink:#15181E;
  --ink-2:#3B414B;
  --muted:#6E7581;
  --line:#E6E1D9;
  --line-2:#D5CFC5;
  --accent:#D9482B;
  --accent-ink:#A8331B;
  --teal:#1E6E70;
  --gold:#C98A2B;
  --ok:#2F7A45;
  --warn-bg:#FFF6DD;
  --warn-line:#E8C86A;
  --warn-ink:#8A6516;
  --radius:16px;
  --radius-sm:10px;
  --shadow-s:0 1px 2px rgba(21,24,30,.05);
  --shadow-m:0 6px 20px rgba(21,24,30,.09);
  --shadow-l:0 18px 50px rgba(21,24,30,.16);
  --maxw:1220px;
  --nav-h:66px;
  --sans:"Segoe UI",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px;border-radius:4px}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- type ---------- */
h1,h2,h3,h4{margin:0;font-weight:760;letter-spacing:-.022em;line-height:1.16}
h1{font-size:clamp(2.1rem,4.6vw,3.5rem)}
h2{font-size:clamp(1.6rem,3vw,2.3rem)}
h3{font-size:1.16rem;letter-spacing:-.012em}
p{margin:0}
.eyebrow{
  display:inline-block;font-size:.7rem;font-weight:800;letter-spacing:.16em;
  text-transform:uppercase;color:var(--accent);margin-bottom:14px
}
.lede{font-size:1.05rem;color:var(--ink-2);max-width:62ch}
.small{font-size:.82rem;color:var(--muted)}
.mono{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace}

section{padding:82px 0;border-top:1px solid var(--line)}
section:first-of-type{border-top:0}
section[id],.catblock{scroll-margin-top:124px}
.sec-head{max-width:70ch;margin-bottom:38px}
.sec-head h2{margin-bottom:12px}

/* ---------- edit-me chip ---------- */
.todo{
  display:inline-block;background:var(--warn-bg);border:1px dashed var(--warn-line);
  color:var(--warn-ink);border-radius:5px;padding:0 6px;font-size:.86em;font-weight:600;
  line-height:1.5;white-space:normal
}
.band .todo,.ft .todo{background:#3A3222;border-color:#7A6631;color:#F0C87A}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;
  font-size:.94rem;font-weight:650;border:1px solid transparent;transition:.16s;white-space:nowrap
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-ink)}
.btn-ghost{border-color:var(--line-2);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--ink);background:var(--paper-2)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-sm{padding:8px 15px;font-size:.84rem}
.btn-block{width:100%;justify-content:center}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:60;height:var(--nav-h);
  background:rgba(252,251,249,.94);border-bottom:1px solid var(--line);
  backdrop-filter:saturate(1.4) blur(8px)
}
.nav-in{display:flex;align-items:center;gap:26px;height:100%}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.03em;font-size:1.14rem}
.logo-mark{
  width:32px;height:32px;border-radius:9px;background:var(--accent);color:#fff;
  display:grid;place-items:center;font-size:.82rem;font-weight:800;letter-spacing:0
}
.logo small{font-weight:600;color:var(--muted);letter-spacing:.02em;font-size:.72rem;text-transform:uppercase}
.nav-links{display:flex;gap:2px;margin-left:auto}
.nav-links a{padding:8px 12px;border-radius:8px;font-size:.9rem;font-weight:600;color:var(--ink-2)}
.nav-links a:hover{background:var(--paper-2);color:var(--ink)}
.nav-cta{display:flex;gap:10px;align-items:center}
.burger{display:none;margin-left:auto;padding:9px;border:1px solid var(--line-2);border-radius:9px}
.burger span{display:block;width:19px;height:2px;background:var(--ink);margin:3.5px 0;border-radius:2px}

/* ---------- hero ---------- */
.hero{padding:0;border-top:0;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;padding:74px 0 62px}
.hero h1{margin-bottom:20px}
.hero .lede{margin-bottom:30px;font-size:1.09rem}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:38px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.hero-stats div{background:#fff;padding:15px 14px}
.hero-stats b{display:block;font-size:1.16rem;font-weight:800;letter-spacing:-.02em;line-height:1.3}
.hero-stats span{font-size:.74rem;color:var(--muted);line-height:1.35;display:block;margin-top:2px}
.hero-note{margin-top:14px;font-size:.78rem;color:var(--muted)}
.hero-art{position:relative}
.hero-art .frame{
  border-radius:22px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-l);background:#fff;aspect-ratio:1/1
}
.hero-art .frame img{width:100%;height:100%;object-fit:cover}
.badge-float{
  position:absolute;left:-14px;bottom:26px;background:#fff;border:1px solid var(--line);
  border-radius:12px;box-shadow:var(--shadow-m);padding:11px 15px;font-size:.8rem;font-weight:700
}
.badge-float span{display:block;font-weight:500;color:var(--muted);font-size:.72rem}

/* ---------- pillars ---------- */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;padding:0 0 76px}
.pillar{padding-top:22px;border-top:2px solid var(--ink)}
.pillar h3{margin-bottom:7px;font-size:1rem}
.pillar p{font-size:.87rem;color:var(--muted);line-height:1.55}

/* ---------- toolbar ---------- */
.toolbar{
  position:sticky;top:var(--nav-h);z-index:40;background:var(--paper);
  border-bottom:1px solid var(--line);margin:0 -24px;padding:0 24px
}
.toolbar-in{display:flex;gap:9px;align-items:center;padding:13px 0;flex-wrap:wrap}
.chip{
  padding:7px 14px;border-radius:999px;border:1px solid var(--line-2);background:#fff;
  font-size:.84rem;font-weight:620;color:var(--ink-2);transition:.14s;display:inline-flex;gap:7px;align-items:center
}
.chip:hover{border-color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.chip i{width:8px;height:8px;border-radius:50%;background:var(--dot,#999);display:block}
.search{margin-left:auto;position:relative}
.search input{
  width:220px;padding:9px 13px 9px 34px;border:1px solid var(--line-2);border-radius:999px;
  background:#fff;font-size:.86rem
}
.search input:focus{border-color:var(--ink);outline:none}
.search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);opacity:.45}

/* ---------- category band ---------- */
.catband{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;
  padding:30px 0 22px;border-bottom:1px solid var(--line);margin-bottom:26px}
.catband .swatch{width:5px;align-self:stretch;border-radius:3px;min-height:56px}
.catband h3{font-size:1.34rem;margin-bottom:6px}
.catband p{font-size:.92rem;color:var(--muted);max-width:78ch}
.rts-tag{display:inline-block;background:var(--ok);color:#fff;font-size:.64rem;font-weight:800;
  letter-spacing:.1em;text-transform:uppercase;padding:3px 8px;border-radius:5px;vertical-align:middle;margin-left:9px}

/* ---------- product grid ---------- */
/* One row = two products, per factory preference. */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-bottom:14px}
@media (max-width:760px){ .grid{grid-template-columns:1fr} }
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.18s
}
.card:hover{border-color:var(--line-2);box-shadow:var(--shadow-m);transform:translateY(-2px)}
.shot{position:relative;aspect-ratio:1/1;background:var(--paper-2);border-bottom:1px solid var(--line);overflow:hidden}
.shot img{width:100%;height:100%;object-fit:cover}
.card-status{
  position:absolute;top:11px;left:11px;font-size:.63rem;font-weight:800;letter-spacing:.09em;
  text-transform:uppercase;padding:4px 8px;border-radius:5px;background:rgba(255,255,255,.94);
  border:1px solid var(--line);color:var(--ink-2)
}
.card-status.rts{background:var(--ok);border-color:var(--ok);color:#fff}
.card-body{padding:17px 17px 15px;display:flex;flex-direction:column;flex:1}
.card-id{font-size:.68rem;font-weight:700;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}
.card-body h3{margin:5px 0 8px;font-size:1.03rem}
.card-body h3 a:hover{color:var(--accent)}
.card-blurb{font-size:.85rem;color:var(--muted);line-height:1.55;flex:1}
.spec-mini{display:flex;flex-wrap:wrap;gap:5px;margin:13px 0 0}
.spec-mini span{font-size:.71rem;background:var(--paper-2);border:1px solid var(--line);
  border-radius:5px;padding:2px 7px;color:var(--ink-2)}
.spec-mini .tbc{font-style:normal;font-weight:700;color:var(--warn-ink);
  border-bottom:1px dashed var(--warn-line)}
.card-actions{display:flex;gap:8px;margin-top:15px;padding-top:14px;border-top:1px solid var(--line)}
.card-actions .btn{flex:1;justify-content:center}

/* ---------- missing photo slot ---------- */
.slot[hidden]{display:none}
.slot{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:7px;padding:18px;text-align:center;
  background:repeating-linear-gradient(45deg,#F7F4EF,#F7F4EF 11px,#F1EDE6 11px,#F1EDE6 22px);
  color:var(--muted)
}
.slot svg{opacity:.5}
.slot b{font-size:.76rem;font-weight:700;letter-spacing:.02em;color:var(--ink-2)}
.slot code{font-size:.68rem;background:#fff;border:1px dashed var(--line-2);border-radius:5px;
  padding:3px 7px;word-break:break-all;color:var(--warn-ink);font-family:"SFMono-Regular",Consolas,monospace}
.slot em{font-style:normal;font-size:.66rem;max-width:24ch;line-height:1.4}

/* ---------- butterfly feature band ---------- */
.band{background:var(--ink);color:#fff;border-top:0;padding:82px 0}
.band .eyebrow{color:#F0A08C}
.band h2{color:#fff}
.band .lede{color:#B9BFC9}
.bfly{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:start;margin-bottom:44px}
.bfly-media .main{border-radius:18px;overflow:hidden;border:1px solid #2C323C;background:#fff;aspect-ratio:1/1}
.bfly-media .main img{width:100%;height:100%;object-fit:contain}
.strip{display:grid;grid-template-columns:repeat(auto-fill,minmax(62px,1fr));gap:8px;margin-top:12px}
.strip button{border-radius:9px;overflow:hidden;border:2px solid transparent;background:#2C323C;aspect-ratio:1/1}
.strip button img{width:100%;height:100%;object-fit:cover}
.strip button[aria-current="true"]{border-color:var(--accent)}
.bfly-info h2{margin-bottom:14px}
.bfly-info>p{color:#B9BFC9;margin-bottom:26px}
.spec-table{width:100%;border-collapse:collapse;font-size:.9rem}
.spec-table th,.spec-table td{text-align:left;padding:10px 0;border-bottom:1px solid #2C323C;vertical-align:top}
.spec-table th{color:#8B93A0;font-weight:600;width:44%;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em}
.spec-table td{color:#fff;font-weight:600}
.feat{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:10px}
.feat li{position:relative;padding-left:25px;font-size:.9rem;color:#D3D8E0;line-height:1.5}
.feat li::before{content:"";position:absolute;left:0;top:.55em;width:12px;height:6px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.note{margin-top:22px;font-size:.79rem;color:#8B93A0;border-left:2px solid #2C323C;padding-left:13px;line-height:1.55}
.note.warn{color:#F0C87A;border-color:#6B5320}

/* ---------- sku matrix ---------- */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table.matrix{width:100%;border-collapse:collapse;font-size:.87rem;min-width:640px}
table.matrix caption{text-align:left;padding:16px 18px 4px;font-weight:700;font-size:.95rem}
table.matrix caption small{display:block;font-weight:400;color:var(--muted);font-size:.78rem;margin-top:3px}
table.matrix th{background:var(--paper-2);text-align:left;padding:11px 18px;font-size:.7rem;
  text-transform:uppercase;letter-spacing:.09em;color:var(--muted);border-bottom:1px solid var(--line)}
table.matrix td{padding:13px 18px;border-bottom:1px solid var(--line);vertical-align:top}
table.matrix tr:last-child td{border-bottom:0}
table.matrix tr:hover td{background:#FDFCFA}
.code{font-family:"SFMono-Regular",Consolas,monospace;font-size:.8rem;font-weight:700;color:var(--teal)}

/* ---------- colour strip (light) ---------- */
.colours{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:12px;margin-top:22px}
.colour{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;text-align:center}
.colour img{aspect-ratio:1/1;object-fit:cover;width:100%}
.colour span{display:block;font-size:.7rem;padding:6px 4px;color:var(--muted);border-top:1px solid var(--line)}

/* ---------- scenes ---------- */
.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px}
.scene{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;border:1px solid var(--line)}
.scene img{width:100%;height:100%;object-fit:cover}
.scene figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 15px 13px;color:#fff;
  font-size:.84rem;font-weight:650;background:linear-gradient(transparent,rgba(10,12,16,.82))}

/* ---------- oem steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.step{background:#fff;padding:26px 24px}
.step .n{font-size:.72rem;font-weight:800;letter-spacing:.14em;color:var(--accent)}
.step h3{margin:9px 0 8px;font-size:1.03rem}
.step p{font-size:.86rem;color:var(--muted);line-height:1.55}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}
.tags span{font-size:.79rem;border:1px solid var(--line-2);background:#fff;border-radius:999px;padding:6px 13px;color:var(--ink-2)}

/* ---------- compliance ---------- */
.mkts{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.mkt{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.mkt h3{font-size:1rem;margin-bottom:4px}
.mkt .flag{font-size:.72rem;color:var(--muted);margin-bottom:14px}
.mkt ul{list-style:none;padding:0;margin:0 0 12px;display:grid;gap:6px}
.mkt li{font-size:.83rem;padding-left:16px;position:relative;color:var(--ink-2)}
.mkt li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:2px;background:var(--teal)}
.mkt p{font-size:.77rem;color:var(--muted);border-top:1px dashed var(--line-2);padding-top:11px;line-height:1.5}

/* ---------- logistics ---------- */
.log{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.log div{display:grid;grid-template-columns:230px 1fr;gap:20px;padding:15px 22px;border-bottom:1px solid var(--line)}
.log div:last-child{border-bottom:0}
.log div:nth-child(odd){background:#FDFCFA}
.log dt,.log b{font-size:.84rem;font-weight:700;color:var(--ink)}
.log span{font-size:.88rem;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{list-style:none;cursor:pointer;padding:19px 40px 19px 0;position:relative;
  font-weight:680;font-size:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:1.35rem;font-weight:400;color:var(--muted);transition:.18s}
.faq details[open] summary::after{content:"−"}
.faq details[open] summary{color:var(--accent)}
.faq .a{padding:0 44px 20px 0;font-size:.92rem;color:var(--ink-2);line-height:1.68;max-width:80ch}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:start}
.clist{display:grid;gap:2px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.clist div{background:#fff;padding:15px 20px;display:flex;justify-content:space-between;gap:16px;align-items:baseline;flex-wrap:wrap}
.clist dt{font-size:.76rem;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);font-weight:700}
.clist dd{margin:0;font-size:.92rem;font-weight:600;text-align:right}
.clist a:hover{color:var(--accent)}
form.inq{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.fr{margin-bottom:15px}
.fr label{display:block;font-size:.78rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  color:var(--muted);margin-bottom:6px}
.fr label .req{color:var(--accent)}
.fr input,.fr textarea,.fr select{width:100%;padding:11px 13px;border:1px solid var(--line-2);
  border-radius:var(--radius-sm);background:#fff;font-size:.92rem;transition:.14s}
.fr input:focus,.fr textarea:focus,.fr select:focus{border-color:var(--ink);outline:none;box-shadow:0 0 0 3px rgba(217,72,43,.09)}
.fr textarea{min-height:104px;resize:vertical}
.fr2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-actions{display:grid;gap:10px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.form-hint{font-size:.75rem;color:var(--muted);line-height:1.5}

/* ---------- enquiry drawer ---------- */
.ewrap{position:fixed;right:20px;bottom:20px;z-index:80;display:flex;flex-direction:column;align-items:flex-end;gap:11px}
.epill{
  background:var(--ink);color:#fff;border-radius:999px;padding:13px 21px;font-size:.9rem;font-weight:680;
  box-shadow:var(--shadow-l);display:flex;align-items:center;gap:10px;transition:.16s
}
.epill:hover{background:#000;transform:translateY(-2px)}
.epill .cnt{background:var(--accent);border-radius:999px;min-width:22px;height:22px;display:grid;place-items:center;
  font-size:.76rem;padding:0 6px}
.edraw{
  width:min(392px,calc(100vw - 40px));max-height:min(64vh,520px);overflow:auto;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-l);display:none
}
.edraw.open{display:block}
.edraw header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);
  padding:15px 18px;display:flex;justify-content:space-between;align-items:center}
.edraw header b{font-size:.95rem}
.eitems{padding:6px 0}
.eitem{display:flex;gap:11px;align-items:center;padding:11px 18px;border-bottom:1px solid var(--line)}
.eitem:last-child{border-bottom:0}
.eitem img{width:44px;height:44px;border-radius:8px;object-fit:cover;border:1px solid var(--line);flex:none}
.eitem .ph{width:44px;height:44px;border-radius:8px;flex:none;background:var(--paper-2);border:1px dashed var(--line-2)}
.eitem div{flex:1;min-width:0}
.eitem strong{display:block;font-size:.84rem;font-weight:660;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.eitem span{font-size:.72rem;color:var(--muted)}
.eitem button{color:var(--muted);font-size:1.2rem;line-height:1;padding:3px 6px;border-radius:6px}
.eitem button:hover{color:var(--accent);background:var(--paper-2)}
.efoot{padding:16px 18px;border-top:1px solid var(--line);background:#FDFCFA}
.empty{padding:34px 20px;text-align:center;color:var(--muted);font-size:.87rem}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,26px);background:var(--ink);color:#fff;
  padding:12px 22px;border-radius:999px;font-size:.88rem;font-weight:600;box-shadow:var(--shadow-l);
  opacity:0;pointer-events:none;transition:.26s;z-index:95;max-width:calc(100vw - 40px);text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- footer ---------- */
footer.ft{background:var(--ink);color:#8B93A0;padding:52px 0 30px;border-top:0}
.ft-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;margin-bottom:34px}
.ft h4{color:#fff;font-size:.76rem;letter-spacing:.13em;text-transform:uppercase;margin-bottom:14px}
.ft a:hover{color:#fff}
.ft ul{list-style:none;padding:0;margin:0;display:grid;gap:8px;font-size:.87rem}
.ft .brandline{color:#fff;font-size:1.24rem;font-weight:800;letter-spacing:-.02em;margin-bottom:9px}
.ft p{font-size:.86rem;line-height:1.6;max-width:44ch}
.ft-bot{border-top:1px solid #2C323C;padding-top:20px;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:.77rem}

/* ---------- lightbox ---------- */
.lb{position:fixed;inset:0;z-index:90;background:rgba(12,14,18,.86);display:none;
  align-items:center;justify-content:center;padding:22px}
.lb.on{display:flex}
.lb-box{background:#fff;border-radius:18px;width:min(880px,100%);max-height:calc(100vh - 44px);
  display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--shadow-l)}
.lb-top{display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:15px 20px;border-bottom:1px solid var(--line);flex:none}
.lb-top b{font-size:1rem;display:block}
.lb-id{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.lb-x{font-size:1.7rem;line-height:1;padding:2px 10px;border-radius:8px;color:var(--muted)}
.lb-x:hover{background:var(--paper-2);color:var(--ink)}
.lb-stage{position:relative;background:#F4F1EC;flex:none}
.lb-stage img{width:100%;height:min(56vh,540px);object-fit:contain;display:block}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,.92);border:1px solid var(--line);font-size:1.5rem;line-height:1;
  display:grid;place-items:center;box-shadow:var(--shadow-s)}
.lb-nav:hover{background:#fff}
.lb-nav.prev{left:12px}.lb-nav.next{right:12px}
.lb-thumbs{display:flex;gap:7px;padding:12px 16px;overflow-x:auto;border-top:1px solid var(--line);flex:none}
.lb-thumbs button{flex:none;width:54px;height:54px;border-radius:8px;overflow:hidden;
  border:2px solid transparent;background:var(--paper-2)}
.lb-thumbs button img{width:100%;height:100%;object-fit:cover}
.lb-thumbs button[aria-current="true"]{border-color:var(--accent)}
.lb-foot{display:flex;justify-content:space-between;align-items:center;gap:14px;
  padding:14px 20px;border-top:1px solid var(--line);background:#FDFCFA;flex:none}

.langbtn{
  margin-left:6px;padding:7px 13px;border-radius:999px;border:1px solid var(--line-2);
  background:#fff;font-size:.8rem;font-weight:700;color:var(--ink-2);align-self:center
}
.langbtn:hover{border-color:var(--ink);color:var(--ink)}

/* ---------- CJK typography ----------
   Negative tracking and tight leading are for Latin. Chinese needs neither. */
html[lang="zh-CN"] h1,html[lang="zh-CN"] h2,html[lang="zh-CN"] h3,html[lang="zh-CN"] h4{
  letter-spacing:0;line-height:1.3}
html[lang="zh-CN"] body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",
              "Noto Sans CJK SC","Segoe UI",system-ui,sans-serif;
  line-height:1.78}
html[lang="zh-CN"] .eyebrow,html[lang="zh-CN"] .card-id,html[lang="zh-CN"] .spec-table th{letter-spacing:.06em}
html[lang="zh-CN"] .todo{white-space:normal}
html[lang="zh-CN"] table.matrix th{letter-spacing:.04em}

/* ---------- responsive ---------- */
@media (max-width:1040px){
  .hero-grid{grid-template-columns:1fr;gap:38px;padding:52px 0 44px}
  .hero-art{max-width:440px}
  .pillars{grid-template-columns:repeat(2,1fr);gap:24px 22px}
  .bfly{grid-template-columns:1fr;gap:34px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:30px}
  .ft-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  section{padding:56px 0}
  .wrap{padding:0 18px}
  .nav-links,.nav-cta{display:none}
  .nav.open .nav-links{display:flex;position:absolute;top:var(--nav-h);left:0;right:0;background:#fff;
    flex-direction:column;padding:10px 18px 18px;border-bottom:1px solid var(--line);gap:0;box-shadow:var(--shadow-m)}
  .nav.open .nav-links a{padding:12px 6px;border-bottom:1px solid var(--line)}
  .burger{display:block}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .pillars{grid-template-columns:1fr;padding-bottom:52px}
  .steps{grid-template-columns:1fr}
  .scenes{grid-template-columns:1fr}
  .log div{grid-template-columns:1fr;gap:3px}
  .fr2{grid-template-columns:1fr}
  .ft-grid{grid-template-columns:1fr}
  .toolbar{margin:0 -18px;padding:0 18px}
  .search{margin-left:0;width:100%}
  .search input{width:100%}
  .band{padding:56px 0}
  .ewrap{right:14px;bottom:14px}
}

/* ---------- print ---------- */
@media print{
  .nav,.toolbar,.ewrap,.toast,.hero-btns,.card-actions,.burger{display:none!important}
  body{background:#fff}
  section,.band{border-top:1px solid #ddd;padding:22px 0;break-inside:avoid;page-break-inside:avoid}
  .band{background:#fff!important;color:#000!important}
  .band h2,.spec-table td{color:#000!important}
  .band .lede,.bfly-info>p,.feat li,.spec-table th{color:#333!important}
  .grid{grid-template-columns:repeat(3,1fr)}
  a[href^="http"]::after{content:" (" attr(href) ")";font-size:.7em;color:#777}
}

/* ---------- factory gallery (5 real workshop shots, 3:2) ---------- */
.facgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.facgrid .scene{aspect-ratio:3/2}
.facgrid .scene:nth-child(4){margin-left:16.66%}
.facgrid .scene:nth-child(5){margin-right:16.66%}
@media (max-width:1040px){ .facgrid{grid-template-columns:1fr 1fr}
  .facgrid .scene:nth-child(4){margin-left:0}
  .facgrid .scene:nth-child(5){margin-right:0} }
@media (max-width:760px){ .facgrid{grid-template-columns:1fr}
  .facgrid .scene{margin:0!important} }

/* ---------- certificates ---------- */
.certgrid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:34px;align-items:start}
.certcard{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.certcard img{width:100%;height:auto;display:block;background:var(--paper-2)}
.certcard figcaption{padding:15px 17px;border-top:1px solid var(--line)}
.certcard figcaption b{display:block;font-size:.95rem;margin-bottom:5px}
.certcard figcaption span{font-size:.8rem;color:var(--muted);line-height:1.55;display:block}
@media (max-width:1040px){ .certgrid{grid-template-columns:1fr} }