/* =========================================================
   QICHUAN FLOORING — design system
   Hebei Qichuan Environmental Protection Technology Co., Ltd.
   ========================================================= */

:root{
  --paper:      #f7f4ee;
  --paper-2:    #efeae1;
  --paper-3:    #e7e1d6;
  --ink:        #14140f;
  --ink-soft:   #56524a;
  --ink-faint:  #8a857a;
  --line:       #ddd6c9;
  --line-dark:  rgba(255,255,255,.16);
  --brass:      #a8763e;
  --brass-lite: #c39a63;
  --deep:       #1b231f;
  --deep-2:     #232d28;
  --white:      #ffffff;

  --serif: "Playfair Display", Georgia, "Songti SC", "Times New Roman", serif;
  --sans: "Inter", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;

  --wrap: 1240px;
  --pad: 32px;
  --ease: cubic-bezier(.22,.68,.16,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%; scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%; display:block}
a{color:inherit; text-decoration:none}
button{font:inherit; color:inherit; background:none; border:0; cursor:pointer}
ul{margin:0; padding:0; list-style:none}
hr{border:0; border-top:1px solid var(--line); margin:0}
::selection{background:var(--brass); color:#fff}

.wrap{max-width:var(--wrap); margin:0 auto; padding:0 var(--pad)}
.wrap--narrow{max-width:900px}
.section{padding:128px 0}
.section--tight{padding:88px 0}
.section--paper2{background:var(--paper-2)}
.section--deep{background:var(--deep); color:#f2efe8}

/* ---------- type ---------- */
h1,h2,h3,h4{font-family:var(--serif); font-weight:400; letter-spacing:-.01em; margin:0; line-height:1.06}
h1{font-size:clamp(2.9rem, 6.2vw, 5.4rem)}
h2{font-size:clamp(2.1rem, 3.9vw, 3.5rem)}
h3{font-size:clamp(1.35rem, 1.9vw, 1.7rem); line-height:1.2}
h4{font-size:1.1rem; font-family:var(--sans); font-weight:600; letter-spacing:0}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
em{font-style:italic; color:var(--brass)}

.eyebrow{
  font-size:.72rem; letter-spacing:.24em; text-transform:uppercase;
  font-weight:500; color:var(--ink-faint); margin:0 0 22px;
}
.eyebrow--brass{color:var(--brass)}
.lede{font-size:clamp(1.02rem,1.35vw,1.2rem); color:var(--ink-soft); max-width:56ch}
.muted{color:var(--ink-soft)}
.mono{font-variant-numeric:tabular-nums; font-feature-settings:"tnum"}

.section-head{display:grid; grid-template-columns:1fr; gap:26px; max-width:760px; margin-bottom:64px}
.section-head--split{
  grid-template-columns:1.15fr .85fr; gap:60px; max-width:none; align-items:end;
}
.section-head--split .lede{max-width:34ch}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:12px;
  padding:16px 30px; border-radius:999px;
  font-size:.82rem; letter-spacing:.14em; text-transform:uppercase; font-weight:500;
  transition:background .45s var(--ease), color .45s var(--ease), border-color .45s var(--ease), transform .45s var(--ease);
  border:1px solid transparent; white-space:nowrap;
}
.btn svg{width:15px; height:15px; transition:transform .45s var(--ease)}
.btn:hover svg{transform:translateX(5px)}
.btn--dark{background:var(--ink); color:var(--paper)}
.btn--dark:hover{background:var(--brass)}
.btn--light{background:var(--paper); color:var(--ink)}
.btn--light:hover{background:var(--brass); color:#fff}
.btn--ghost{border-color:rgba(255,255,255,.42); color:#fff}
.btn--ghost:hover{background:#fff; color:var(--ink); border-color:#fff}
.btn--outline{border-color:var(--line); color:var(--ink)}
.btn--outline:hover{border-color:var(--ink); background:var(--ink); color:var(--paper)}

.link-arrow{
  display:inline-flex; align-items:center; gap:10px;
  font-size:.78rem; letter-spacing:.16em; text-transform:uppercase; font-weight:500;
  border-bottom:1px solid var(--line); padding-bottom:8px;
  transition:border-color .4s var(--ease), color .4s var(--ease);
}
.link-arrow svg{width:14px; height:14px; transition:transform .4s var(--ease)}
.link-arrow:hover{border-color:var(--brass); color:var(--brass)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- header ---------- */
.topbar{
  background:var(--deep); color:#cfcabe;
  font-size:.72rem; letter-spacing:.13em; text-transform:uppercase;
}
.topbar .wrap{display:flex; justify-content:space-between; align-items:center; height:40px; gap:24px}
.topbar a:hover{color:#fff}
.topbar__links{display:flex; gap:26px; align-items:center}
.topbar__dot{color:var(--brass-lite)}

.site-header{
  position:sticky; top:0; z-index:80;
  background:rgba(247,244,238,.86);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .4s var(--ease), background .4s var(--ease), box-shadow .4s var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line); box-shadow:0 10px 30px rgba(20,20,15,.04)}
.header-inner{display:flex; align-items:center; justify-content:space-between; height:84px; gap:40px; transition:height .4s var(--ease)}
.site-header.is-stuck .header-inner{height:70px}

.brand{display:flex; align-items:center; gap:14px}
.brand__mark{
  width:38px; height:38px; border:1px solid var(--ink); border-radius:50%;
  display:grid; place-items:center; flex:0 0 auto;
}
.brand__mark span{font-family:var(--serif); font-size:1.15rem; line-height:1; transform:translateY(-1px)}
.brand__text{display:flex; flex-direction:column; gap:3px; line-height:1}
.brand__name{font-family:var(--serif); font-weight:700; font-size:1.34rem; letter-spacing:.015em; text-transform:uppercase; line-height:1}
.brand__tag{font-size:.56rem; letter-spacing:.22em; text-transform:uppercase; color:var(--ink-faint); font-weight:600}

.nav{display:flex; align-items:center; gap:38px}
.nav a{
  font-size:.8rem; letter-spacing:.12em; text-transform:uppercase; font-weight:500;
  position:relative; padding:6px 0; color:var(--ink-soft); transition:color .35s var(--ease);
  white-space:nowrap;
}
.nav a::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:1px;
  background:var(--brass); transition:width .4s var(--ease);
}
.nav a:hover,.nav a.is-active{color:var(--ink)}
.nav a:hover::after,.nav a.is-active::after{width:100%}
.header-actions{display:flex; align-items:center; gap:18px}
.header-actions .btn{padding:13px 24px; font-size:.74rem}

.burger{display:none; width:44px; height:44px; align-items:center; justify-content:center; flex-direction:column; gap:5px}
.burger i{display:block; width:22px; height:1px; background:var(--ink); transition:transform .4s var(--ease), opacity .3s}
.burger.is-open i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-open i:nth-child(2){opacity:0}
.burger.is-open i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* mobile drawer */
.drawer{
  position:fixed; inset:0; z-index:79; background:var(--paper);
  padding:120px var(--pad) 40px;
  transform:translateY(-100%); transition:transform .6s var(--ease);
  display:flex; flex-direction:column; gap:6px;
}
.drawer.is-open{transform:translateY(0)}
.drawer a{
  font-family:var(--serif); font-size:2rem; padding:12px 0;
  border-bottom:1px solid var(--line); display:flex; justify-content:space-between; align-items:baseline;
}
.drawer a small{font-family:var(--sans); font-size:.62rem; letter-spacing:.2em; color:var(--ink-faint)}
.drawer__foot{margin-top:auto; padding-top:36px; font-size:.85rem; color:var(--ink-soft); line-height:2}

/* ---------- hero ---------- */
.hero{position:relative; min-height:clamp(620px, calc(100vh - 220px), 850px); display:flex; flex-direction:column; justify-content:flex-end; color:#fff; overflow:hidden}
.hero__img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover; object-position:center 62%}
.hero__veil{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(14,16,13,.66) 0%, rgba(14,16,13,.34) 28%, rgba(14,16,13,.46) 58%, rgba(14,16,13,.88) 100%),
    linear-gradient(90deg, rgba(14,16,13,.58) 0%, rgba(14,16,13,.16) 52%, rgba(14,16,13,0) 76%);
}
.hero__inner{position:relative; z-index:2; width:100%; padding-bottom:64px; padding-top:150px; margin-top:auto}
.hero h1{color:#fff; max-width:24ch; text-shadow:0 2px 50px rgba(0,0,0,.35), 0 1px 3px rgba(0,0,0,.22)}
.hero h1 em{color:#f0e6d6}
.hero__lede{color:rgba(255,255,255,.94); max-width:47ch; margin-top:26px; font-size:clamp(1rem,1.25vw,1.12rem)}
.hero .eyebrow{color:rgba(255,255,255,.72); margin-bottom:20px}
.hero__actions{display:flex; gap:14px; margin-top:38px; flex-wrap:wrap}
.hero__bar{
  position:relative; z-index:2; border-top:1px solid rgba(255,255,255,.22);
  background:rgba(14,16,13,.66);
}
.hero__bar .wrap{display:flex; gap:0; flex-wrap:wrap}
.hero__stat{
  flex:1 1 200px; padding:22px 28px 24px; border-left:1px solid rgba(255,255,255,.18);
}
.hero__stat:first-child{border-left:0; padding-left:0}
.hero__stat b{display:block; font-family:var(--serif); font-size:1.9rem; font-weight:400; line-height:1}
.hero__stat span{display:block; margin-top:8px; font-size:.68rem; letter-spacing:.18em; text-transform:uppercase; color:rgba(255,255,255,.66)}

/* page hero (inner pages) */
.page-hero{position:relative; padding:170px 0 74px; background:var(--paper-2); overflow:hidden}
.page-hero::after{
  content:""; position:absolute; inset:auto -10% -60% auto; width:60vw; height:60vw;
  background:radial-gradient(circle at 50% 50%, rgba(168,118,62,.10), rgba(168,118,62,0) 62%);
  pointer-events:none;
}
.page-hero .eyebrow{margin-bottom:18px}
.page-hero h1{font-size:clamp(2.4rem,4.6vw,4rem); max-width:20ch}
.page-hero .lede{margin-top:24px}
.breadcrumb{font-size:.72rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-faint); margin-bottom:26px}
.breadcrumb a:hover{color:var(--brass)}
.breadcrumb span{margin:0 8px}

/* ---------- marquee ---------- */
.marquee{
  border-block:1px solid var(--line); background:var(--paper);
  overflow:hidden; padding:22px 0;
}
.marquee__track{display:flex; gap:0; width:max-content; animation:slide 46s linear infinite}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee__track span{
  font-family:var(--serif); font-size:1.05rem; letter-spacing:.06em; text-transform:uppercase;
  color:var(--ink-soft); padding:0 34px; display:inline-flex; align-items:center; gap:34px; white-space:nowrap;
}
.marquee__track span::after{content:""; width:5px; height:5px; border-radius:50%; background:var(--brass)}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- intro ---------- */
.intro-grid{display:grid; grid-template-columns:1fr 1fr; gap:80px; align-items:start}
.intro-grid h2{max-width:15ch}
.intro-body p{color:var(--ink-soft)}
.stat-row{display:grid; grid-template-columns:repeat(4,1fr); gap:0; margin-top:64px; border-top:1px solid var(--line)}
.stat-row > div{padding:30px 26px 0 0; border-right:1px solid var(--line)}
.stat-row > div:last-child{border-right:0; padding-right:0}
.stat-row b{display:block; font-family:var(--serif); font-size:clamp(2.1rem,3.4vw,3rem); font-weight:400; line-height:1}
.stat-row span{display:block; margin-top:12px; font-size:.7rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-faint)}

/* ---------- product split cards ---------- */
.split{display:grid; grid-template-columns:1fr 1fr; gap:24px}
.split-card{
  position:relative; overflow:hidden; min-height:560px; display:flex; align-items:flex-end;
  color:#fff; isolation:isolate;
}
.split-card img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover; transition:transform 1.4s var(--ease); z-index:-2}
.split-card::after{
  content:""; position:absolute; inset:0; z-index:-1;
  background:linear-gradient(180deg, rgba(14,16,13,.20) 0%, rgba(14,16,13,.46) 40%, rgba(14,16,13,.90) 100%);
  transition:background .6s var(--ease);
}
.split-card:hover img{transform:scale(1.045)}
.split-card__body{padding:44px; width:100%; text-shadow:0 1px 18px rgba(0,0,0,.24)}
.split-card__no{font-size:.7rem; letter-spacing:.22em; margin-bottom:16px; color:rgba(255,255,255,.7)}
.split-card h3{font-size:clamp(1.7rem,2.6vw,2.3rem); color:#fff; margin-bottom:12px; text-shadow:0 2px 24px rgba(0,0,0,.3)}
.split-card p{color:rgba(255,255,255,.8); max-width:34ch; font-size:.95rem}
.split-card__tags{display:flex; gap:8px; flex-wrap:wrap; margin:22px 0 26px}
.split-card__tags li{
  font-size:.64rem; letter-spacing:.14em; text-transform:uppercase;
  border:1px solid rgba(255,255,255,.34); border-radius:999px; padding:6px 12px; color:rgba(255,255,255,.85);
}
.split-card .link-arrow{color:#fff; border-color:rgba(255,255,255,.32)}
.split-card:hover .link-arrow{border-color:#fff}

/* ---------- swatch grid ---------- */
.swatch-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:26px}
.swatch{cursor:pointer; position:relative}
.swatch__frame{position:relative; overflow:hidden; aspect-ratio:4/3.4; background:var(--paper-3)}
.swatch__frame img{width:100%; height:100%; object-fit:cover; transition:transform 1.2s var(--ease)}
.swatch:hover .swatch__frame img{transform:scale(1.06)}
.swatch__code{
  position:absolute; top:14px; left:14px; z-index:2;
  background:rgba(247,244,238,.92); color:var(--ink);
  font-size:.62rem; letter-spacing:.14em; padding:5px 9px;
}
.swatch__meta{display:flex; justify-content:space-between; align-items:baseline; padding-top:16px; gap:12px}
.swatch__name{font-family:var(--serif); font-size:1.16rem}
.swatch__type{font-size:.66rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-faint); text-align:right}
.swatch__note{
  position:absolute; inset:auto 0 0 0; z-index:2; padding:18px;
  background:linear-gradient(180deg, rgba(14,16,13,0), rgba(14,16,13,.82));
  color:#fff; font-size:.74rem; letter-spacing:.1em; text-transform:uppercase;
  opacity:0; transform:translateY(10px); transition:all .5s var(--ease);
}
.swatch:hover .swatch__note{opacity:1; transform:none}

/* ---------- feature grid ---------- */
.feature-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:0; border-top:1px solid var(--line)}
.feature{padding:44px 40px 44px 0; border-bottom:1px solid var(--line); border-right:1px solid var(--line)}
.feature:nth-child(3n){border-right:0; padding-right:0}
.feature:nth-child(3n+1){padding-left:0}
.feature:nth-child(3n+2){padding-left:40px}
.feature__icon{width:42px; height:42px; margin-bottom:24px; color:var(--brass)}
.feature__icon svg{width:100%; height:100%; stroke-width:1.1; fill:none; stroke:currentColor}
.feature h4{margin-bottom:10px}
.feature p{font-size:.92rem; color:var(--ink-soft); margin:0}

/* ---------- factory band ---------- */
.factory{position:relative; color:#fff; overflow:hidden; min-height:640px; display:flex; align-items:center}
.factory img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover}
.factory::after{content:""; position:absolute; inset:0; background:linear-gradient(90deg, rgba(15,18,15,.92) 0%, rgba(15,18,15,.72) 58%, rgba(15,18,15,.38) 100%)}
.factory .wrap{position:relative; z-index:2; text-shadow:0 1px 20px rgba(0,0,0,.30)}
.factory h2{color:#fff; max-width:17ch}
.factory p{color:rgba(255,255,255,.82); max-width:46ch}
.factory .eyebrow{color:var(--brass-lite)}
.factory__stats{display:flex; gap:56px; margin:44px 0 40px; flex-wrap:wrap}
.factory__stats b{display:block; font-family:var(--serif); font-size:2.4rem; font-weight:400; line-height:1}
.factory__stats span{display:block; margin-top:10px; font-size:.66rem; letter-spacing:.16em; text-transform:uppercase; color:rgba(255,255,255,.6)}

/* ---------- process ---------- */
.process{display:grid; grid-template-columns:repeat(4,1fr); gap:34px; counter-reset:step}
.process__item{position:relative; padding-top:34px; border-top:1px solid var(--line)}
.process__item::before{
  counter-increment:step; content:"0" counter(step);
  position:absolute; top:-14px; left:0; background:var(--paper);
  padding-right:14px; font-size:.7rem; letter-spacing:.2em; color:var(--brass);
}
.process__item h4{margin-bottom:8px; font-family:var(--serif); font-size:1.4rem; font-weight:400}
.process__item p{font-size:.9rem; color:var(--ink-soft); margin:0}

/* ---------- certs ---------- */
.cert-strip{
  display:flex; flex-wrap:wrap; gap:14px; justify-content:space-between; align-items:stretch;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding:0;
}
.cert{
  flex:1 1 150px; padding:30px 10px; text-align:center; border-left:1px solid var(--line);
}
.cert:first-child{border-left:0}
.cert b{display:block; font-size:.9rem; letter-spacing:.1em}
.cert span{display:block; font-size:.62rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-faint); margin-top:6px}

/* ---------- CTA ---------- */
.cta{background:var(--deep); color:#f4f1ea; position:relative; overflow:hidden}
.cta::after{
  content:""; position:absolute; width:54vw; height:54vw; right:-16vw; top:-24vw;
  border:1px solid var(--line-dark); border-radius:50%; pointer-events:none;
}
.cta::before{
  content:""; position:absolute; width:38vw; height:38vw; right:-6vw; top:-14vw;
  border:1px solid var(--line-dark); border-radius:50%; pointer-events:none;
}
.cta .wrap{position:relative; z-index:2; display:grid; grid-template-columns:1.2fr .8fr; gap:60px; align-items:center}
.cta h2{color:#fff; max-width:18ch}
.cta p{color:rgba(244,241,234,.72); max-width:44ch}
.cta .eyebrow{color:var(--brass-lite)}
.cta__actions{display:flex; flex-direction:column; gap:14px; align-items:flex-start}
.cta__mail{font-family:var(--serif); font-size:1.5rem; border-bottom:1px solid var(--line-dark); padding-bottom:6px}
.cta__mail:hover{color:var(--brass-lite); border-color:var(--brass-lite)}

/* ---------- page blocks ---------- */
.two-col{display:grid; grid-template-columns:1fr 1fr; gap:80px; align-items:start}
.sticky-col{position:sticky; top:110px}
.figure{margin:0}
.figure img{width:100%; height:auto}
.figure figcaption{margin-top:14px; font-size:.74rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-faint)}

.rule-list{border-top:1px solid var(--line)}
.rule-list li{display:grid; grid-template-columns:52px 1fr; gap:20px; padding:22px 0; border-bottom:1px solid var(--line)}
.rule-list b{font-size:.72rem; letter-spacing:.14em; color:var(--brass); padding-top:4px}
.rule-list p{margin:0; color:var(--ink-soft); font-size:.94rem}
.rule-list strong{color:var(--ink); font-weight:600}

/* product line cards */
.line-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:26px}
.line-card{background:var(--paper); border:1px solid var(--line); display:flex; flex-direction:column; transition:border-color .5s var(--ease), transform .5s var(--ease), box-shadow .5s var(--ease)}
.line-card:hover{border-color:var(--brass); transform:translateY(-4px); box-shadow:0 24px 50px rgba(20,20,15,.07)}
.line-card__img{aspect-ratio:16/11; overflow:hidden; background:var(--paper-3)}
.line-card__img img{width:100%; height:100%; object-fit:cover; transition:transform 1.2s var(--ease)}
.line-card:hover .line-card__img img{transform:scale(1.05)}
.line-card__body{padding:28px 26px 30px; display:flex; flex-direction:column; flex:1}
.line-card__code{font-size:.64rem; letter-spacing:.2em; color:var(--brass); margin-bottom:12px}
.line-card h3{font-size:1.45rem; margin-bottom:10px}
.line-card p{font-size:.9rem; color:var(--ink-soft)}
.line-card__specs{margin:18px 0 24px; border-top:1px solid var(--line)}
.line-card__specs li{display:flex; justify-content:space-between; gap:14px; padding:9px 0; border-bottom:1px solid var(--line); font-size:.8rem}
.line-card__specs span:first-child{color:var(--ink-faint); letter-spacing:.06em}
.line-card__specs span:last-child{font-weight:500; text-align:right}
.line-card .link-arrow{margin-top:auto; font-size:.7rem; align-self:flex-start}

/* spec table */
.table-wrap{overflow-x:auto; border:1px solid var(--line); background:var(--paper)}
table.spec{width:100%; border-collapse:collapse; font-size:.88rem; min-width:620px}
table.spec th,table.spec td{padding:15px 20px; text-align:left; border-bottom:1px solid var(--line)}
table.spec thead th{
  background:var(--paper-2); font-size:.66rem; letter-spacing:.16em; text-transform:uppercase;
  color:var(--ink-soft); font-weight:600;
}
table.spec tbody th{font-weight:500; color:var(--ink-soft); width:32%}
table.spec tbody tr:last-child th,table.spec tbody tr:last-child td{border-bottom:0}
table.spec tbody tr:hover{background:rgba(168,118,62,.045)}

/* application tiles */
.app-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px}
.app{border:1px solid var(--line); padding:30px 24px; background:var(--paper); transition:background .5s var(--ease), border-color .5s var(--ease)}
.app:hover{background:var(--paper-2); border-color:var(--line)}
.app svg{width:30px; height:30px; stroke:var(--brass); fill:none; stroke-width:1.1; margin-bottom:18px}
.app h4{font-size:1rem; margin-bottom:6px}
.app p{font-size:.84rem; color:var(--ink-soft); margin:0}

/* accordion */
.acc{border-top:1px solid var(--line)}
.acc__item{border-bottom:1px solid var(--line)}
.acc__btn{
  width:100%; display:flex; justify-content:space-between; align-items:center; gap:24px;
  padding:26px 0; text-align:left; font-family:var(--serif); font-size:1.24rem;
}
.acc__btn i{
  flex:0 0 auto; width:26px; height:26px; border:1px solid var(--line); border-radius:50%;
  position:relative; transition:transform .4s var(--ease), border-color .4s var(--ease);
}
.acc__btn i::before,.acc__btn i::after{
  content:""; position:absolute; background:var(--ink); left:50%; top:50%; transform:translate(-50%,-50%);
}
.acc__btn i::before{width:10px; height:1px}
.acc__btn i::after{width:1px; height:10px; transition:opacity .3s}
.acc__item.is-open .acc__btn i{transform:rotate(90deg); border-color:var(--brass)}
.acc__item.is-open .acc__btn i::after{opacity:0}
.acc__panel{max-height:0; overflow:hidden; transition:max-height .5s var(--ease)}
.acc__panel > div{padding:0 60px 28px 0; color:var(--ink-soft); font-size:.95rem}

/* ---------- contact ---------- */
.contact-grid{display:grid; grid-template-columns:.9fr 1.1fr; gap:70px; align-items:start}
.info-list{display:grid; gap:0; border-top:1px solid var(--line)}
.info{display:grid; grid-template-columns:110px 1fr; gap:20px; padding:24px 0; border-bottom:1px solid var(--line)}
.info dt{font-size:.66rem; letter-spacing:.18em; text-transform:uppercase; color:var(--ink-faint); padding-top:2px}
.info dd{margin:0; font-size:.98rem; line-height:1.6}
.info dd a:hover{color:var(--brass)}

.form{background:var(--paper); border:1px solid var(--line); padding:44px}
.form__row{display:grid; grid-template-columns:1fr 1fr; gap:18px}
.field{margin-bottom:18px}
.field label{display:block; font-size:.66rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-faint); margin-bottom:9px}
.field input,.field select,.field textarea{
  width:100%; padding:14px 16px; border:1px solid var(--line); background:#fff;
  font-family:var(--sans); font-size:.92rem; color:var(--ink); border-radius:0;
  transition:border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0; border-color:var(--brass); box-shadow:0 0 0 3px rgba(168,118,62,.10);
}
.field textarea{resize:vertical; min-height:120px}
.form__note{font-size:.76rem; color:var(--ink-faint); margin-top:14px}
.form .btn{width:100%; justify-content:center; margin-top:8px}
.form__msg{display:none; padding:14px 16px; background:rgba(168,118,62,.1); border:1px solid var(--brass); font-size:.86rem; margin-top:16px}
.form__msg.is-show{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--deep); color:#c7c3b8; padding:92px 0 0; font-size:.88rem}
.footer-top{display:grid; grid-template-columns:1.5fr .8fr .8fr 1fr; gap:56px; padding-bottom:64px}
.site-footer h5{
  font-family:var(--sans); font-size:.66rem; letter-spacing:.2em; text-transform:uppercase;
  color:#8e8a7e; margin:0 0 22px; font-weight:600;
}
.site-footer .brand__mark{border-color:rgba(255,255,255,.35)}
.site-footer .brand__name{color:#fff}
.site-footer .brand__tag{color:#8e8a7e}
.footer-brand p{color:#a8a49a; max-width:34ch; margin-top:22px; font-size:.86rem}
.footer-links li{margin-bottom:12px}
.footer-links a{color:#c7c3b8; transition:color .3s}
.footer-links a:hover{color:#fff}
.footer-contact li{margin-bottom:16px; color:#a8a49a; line-height:1.6}
.footer-contact span{display:block; font-size:.62rem; letter-spacing:.16em; text-transform:uppercase; color:#7d796e; margin-bottom:4px}
.footer-contact a{color:#e9e5db}
.footer-contact a:hover{color:var(--brass-lite)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1); padding:26px 0;
  display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap;
  font-size:.74rem; letter-spacing:.06em; color:#8e8a7e;
}
.footer-bottom a:hover{color:#fff}

/* ---------- whatsapp float ---------- */
.wa-float{
  position:fixed; right:24px; bottom:24px; z-index:70;
  width:54px; height:54px; border-radius:50%; background:#1f8a5f; color:#fff;
  display:grid; place-items:center; box-shadow:0 12px 28px rgba(20,40,30,.28);
  transition:transform .4s var(--ease), background .4s var(--ease);
}
.wa-float:hover{transform:translateY(-3px) scale(1.04); background:#17704c}
.wa-float svg{width:26px; height:26px; fill:currentColor}

/* ---------- reveal ---------- */
.reveal{opacity:0; transform:translateY(26px); transition:opacity .9s var(--ease), transform .9s var(--ease)}
.reveal.is-in{opacity:1; transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
.reveal[data-d="4"]{transition-delay:.32s}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1; transform:none; transition:none}
  .marquee__track{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .nav{gap:26px}
  .intro-grid,.two-col,.contact-grid,.cta .wrap{grid-template-columns:1fr; gap:48px}
  .section-head--split{grid-template-columns:1fr; gap:24px}
  .swatch-grid,.line-grid{grid-template-columns:repeat(2,1fr)}
  .app-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .feature:nth-child(3n){border-right:1px solid var(--line); padding-right:40px}
  .feature:nth-child(2n){border-right:0}
  .footer-top{grid-template-columns:1fr 1fr; gap:40px}
  .process{grid-template-columns:repeat(2,1fr); gap:40px}
  .stat-row{grid-template-columns:repeat(2,1fr); gap:0}
  .stat-row > div:nth-child(2n){border-right:0}
  .stat-row > div{padding:26px 20px 26px 0}
}
@media (max-width:860px){
  :root{--pad:20px}
  .topbar .wrap{height:36px; font-size:.6rem; letter-spacing:.08em; justify-content:center}
  .topbar .wrap > span:first-child{display:none}
  .topbar__dot{display:none}
  .topbar__links a{white-space:nowrap}
  .nav,.header-actions .btn{display:none}
  .burger{display:flex}
  .topbar__links a:not(:last-child){display:none}
  .hero h1 br,.page-hero h1 br{display:none}
  .section{padding:82px 0}
  .section--tight{padding:62px 0}
  .hero{min-height:88vh}
  .hero__inner{padding-bottom:44px; padding-top:120px}
  .hero__bar .wrap{gap:0}
  .hero__stat{flex:1 1 50%; min-width:0; padding:18px 12px 18px 0; border-left:0}
  .hero__stat:nth-child(2n){border-left:1px solid rgba(255,255,255,.18); padding-left:14px}
  .hero__stat b{font-size:1.6rem}
  .hero__stat span{font-size:.58rem; letter-spacing:.1em}
  .split{grid-template-columns:1fr}
  .split-card{min-height:440px}
  .split-card__body{padding:28px}
  .swatch-grid,.line-grid,.app-grid,.feature-grid{grid-template-columns:1fr}
  .feature{padding:32px 0 !important; border-right:0 !important}
  .process{grid-template-columns:1fr}
  .form{padding:26px}
  .form__row{grid-template-columns:1fr}
  .factory__stats{gap:32px}
  .footer-top{grid-template-columns:1fr; gap:36px}
  .page-hero{padding:130px 0 54px}
  .cert{flex:1 1 46%}
  .cert:nth-child(3){border-left:0}
  .cert:nth-child(n+3){border-top:1px solid var(--line)}
  .acc__panel > div{padding-right:0}
}

/* =========================================================
   图片区块（mosaic / band / duo）
   ========================================================= */
.gallery{
  display:grid; grid-template-columns:1.35fr 1fr 1fr;
  grid-auto-rows:212px; gap:14px;
}
.gallery figure{margin:0; position:relative; overflow:hidden; background:var(--paper-3)}
.gallery figure > img{width:100%; height:100%; object-fit:cover; transition:transform 1.4s var(--ease)}
.gallery figure:hover > img{transform:scale(1.045)}
.gallery .g-tall{grid-row:span 2}
.gallery .g-wide{grid-column:span 2}
.gallery figcaption{
  position:absolute; inset:auto 0 0 0; padding:16px 18px 14px;
  background:linear-gradient(0deg, rgba(14,16,13,.72), rgba(14,16,13,0));
  color:#fff; font-size:.64rem; letter-spacing:.16em; text-transform:uppercase;
}
.gallery figcaption b{display:block; font-family:var(--serif); font-size:1.05rem; font-weight:400; letter-spacing:0; text-transform:none; margin-bottom:2px}

.band{position:relative; overflow:hidden; display:flex; align-items:flex-end; min-height:min(66vh, 560px); color:#fff}
.band > img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover}
.band::after{content:""; position:absolute; inset:0; background:
  linear-gradient(90deg, rgba(14,16,13,.84) 0%, rgba(14,16,13,.48) 52%, rgba(14,16,13,.10) 100%),
  linear-gradient(180deg, rgba(14,16,13,.10) 0%, rgba(14,16,13,.04) 42%, rgba(14,16,13,.62) 100%)}
.band .wrap{position:relative; z-index:2; padding-bottom:56px; padding-top:56px; width:100%}
.band h2{color:#fff; max-width:18ch; text-shadow:0 2px 30px rgba(0,0,0,.3)}
.band p{color:rgba(255,255,255,.86); max-width:46ch; text-shadow:0 1px 18px rgba(0,0,0,.35)}

.duo{display:grid; grid-template-columns:1fr 1fr; gap:16px}
.duo figure{margin:0; position:relative; overflow:hidden}
.duo figure > img{width:100%; aspect-ratio:4/3; object-fit:cover; transition:transform 1.4s var(--ease)}
.duo figure:hover > img{transform:scale(1.05)}
.duo figcaption{
  position:absolute; inset:auto 0 0 0; padding:14px 16px;
  background:linear-gradient(0deg, rgba(14,16,13,.7), rgba(14,16,13,0));
  color:#fff; font-size:.63rem; letter-spacing:.14em; text-transform:uppercase;
}

/* 花色网格：4 列 */
.swatch-grid--4{grid-template-columns:repeat(4,1fr); gap:20px}
.swatch-grid--4 .swatch__frame{aspect-ratio:1/1}
.swatch-grid--4 .swatch__name{font-size:1.04rem}
.swatch-grid--4 .swatch__type{font-size:.6rem}

/* 图片 + 文字 交错块 */
.media-split{display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center}
.media-split figure{margin:0}
.media-split img{width:100%; aspect-ratio:5/4; object-fit:cover}
.media-split--rev .media-split__text{order:-1}

/* 小图条（三连） */
.strip3{display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin-top:56px}
.strip3 img{width:100%; aspect-ratio:1/1; object-fit:cover}
.strip3 figcaption{margin-top:10px; font-size:.64rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-faint)}
.strip3 figure{margin:0}

@media (max-width:1080px){
  .gallery{grid-template-columns:1fr 1fr; grid-auto-rows:180px}
  .gallery .g-wide{grid-column:span 2}
  .swatch-grid--4{grid-template-columns:repeat(2,1fr)}
  .media-split{gap:40px}
}
@media (max-width:860px){
  .gallery{grid-template-columns:1fr; grid-auto-rows:210px}
  .gallery .g-tall{grid-row:span 1}
  .gallery .g-wide{grid-column:span 1}
  .duo,.media-split,.strip3{grid-template-columns:1fr}
  .media-split--rev .media-split__text{order:0}
  .band{min-height:62vh}
  .band .wrap{padding-bottom:38px}
}

/* =========================================================
   字体加粗 / 字重层级（第二轮调整）
   Playfair Display 替换 Cormorant，正文与标签整体加重
   ========================================================= */
body{font-weight:400; font-size:16.5px; color:#1a1a14}
h1,h2,h3,h4{font-weight:600; letter-spacing:-.012em}
h1{font-weight:600; line-height:1.06}
h2{font-weight:600; line-height:1.1}
h3{font-weight:600; line-height:1.22}
h4{font-weight:700}
.lede{font-weight:400; color:#47433b}
b,strong{font-weight:700}
p strong,.intro-body strong,.rule-list strong{color:#14140f}
.eyebrow{font-weight:700; font-size:.74rem; letter-spacing:.2em; color:#6f6a5f}
.eyebrow--brass{color:#9c6b33}
.btn{font-weight:600; letter-spacing:.1em}
.topbar{font-weight:500}
.nav a{font-weight:600; letter-spacing:.1em}
.brand__name{font-weight:700; letter-spacing:.015em}
.brand__tag{font-weight:600}
.swatch__name,.decor__name{font-weight:600}
.swatch__type,.decor__code{font-weight:700}
.line-card h3{font-weight:600}
.line-card__code{font-weight:700; letter-spacing:.18em}
.line-card__specs span:first-child{font-weight:500}
.line-card__specs span:last-child{font-weight:600}
.hero__stat b{font-weight:600}
.hero__stat span{font-weight:600}
.stat-row b{font-weight:600}
.stat-row span{font-weight:600}
.factory__stats b{font-weight:600}
.factory__stats span{font-weight:600}
.process__item h4{font-weight:600}
.cert b{font-weight:700}
.info dt{font-weight:600}
.field label{font-weight:600}
.footer-links a,.footer-contact a{font-weight:500}
.site-footer h5{font-weight:700}
.footer-contact span{font-weight:600}
.footer-bottom{font-weight:500}
.hero h1{font-weight:600}
.hero__lede{font-weight:400}
.page-hero h1{font-weight:600}
.cta h2{font-weight:600}
.factory h2{font-weight:600}
.band h2{font-weight:600}
.split-card h3{font-weight:600}
.split-card__no{font-weight:700}
.split-card__tags li{font-weight:600}
.link-arrow{font-weight:700}

/* =========================================================
   新增组件：花色网格 / 厚度卡 / 色块 / 规格表
   ========================================================= */
.u{font-family:var(--sans); font-size:.52em; font-weight:600; letter-spacing:.02em; opacity:.8}

.hero-chips{display:flex; flex-wrap:wrap; gap:10px; margin-top:34px}
.hero-chips li{
  font-size:.7rem; letter-spacing:.14em; text-transform:uppercase; font-weight:600;
  border:1px solid var(--line); padding:8px 14px; color:var(--ink-soft);
}

.decor-grid{display:grid; gap:22px}
.decor-grid--4{grid-template-columns:repeat(4,1fr)}
.decor-grid--3{grid-template-columns:repeat(3,1fr)}
.decor{cursor:default}
.decor__frame{position:relative; overflow:hidden; background:var(--paper-3); aspect-ratio:1/1}
.decor__frame img{width:100%; height:100%; object-fit:cover; transition:transform 1.2s var(--ease)}
.decor:hover .decor__frame img{transform:scale(1.05)}
.decor__meta{display:flex; justify-content:space-between; align-items:baseline; gap:10px; padding-top:13px}
.decor__name{font-family:var(--serif); font-size:1.06rem; letter-spacing:0}
.decor__code{font-size:.64rem; letter-spacing:.1em; color:var(--brass); white-space:nowrap}
.decor__kind{margin:4px 0 0; font-size:.66rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-faint); font-weight:600}

.grid-foot{margin-top:46px; display:flex; justify-content:center}

.table-title{font-family:var(--sans); font-size:.76rem; font-weight:700; letter-spacing:.18em; text-transform:uppercase; color:var(--ink-soft); margin-bottom:16px; margin-top:0}
.note{font-size:.82rem; line-height:1.75; color:var(--ink-faint); margin-top:22px; max-width:78ch}

.spec-table{width:100%; border-collapse:collapse; font-size:.9rem; min-width:560px}
.spec-table th,.spec-table td{padding:15px 18px; text-align:left; border-bottom:1px solid var(--line)}
.spec-table thead th{
  font-size:.66rem; letter-spacing:.14em; text-transform:uppercase; font-weight:700;
  color:var(--ink-soft); background:var(--paper-2); border-bottom:1px solid var(--line);
}
.spec-table td{color:var(--ink-soft)}
.spec-table td:first-child{color:var(--ink); font-weight:600}
.spec-table tbody tr:hover{background:rgba(168,118,62,.05)}

.line-grid--2{grid-template-columns:1fr 1fr}

.tier-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:0; border-top:1px solid var(--line)}
.tier{padding:34px 28px 40px 0; border-right:1px solid var(--line); border-bottom:1px solid var(--line)}
.tier:last-child{border-right:0}
.tier__no{font-size:.66rem; letter-spacing:.18em; color:var(--brass); font-weight:700; margin:0 0 14px}
.tier h3{font-size:1.85rem; margin-bottom:6px}
.tier__use{font-size:.72rem; letter-spacing:.14em; text-transform:uppercase; font-weight:700; color:var(--ink); margin:0 0 14px}
.tier p{font-size:.88rem; color:var(--ink-soft); margin:0}

.chip-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:0; border-top:1px solid var(--line); border-left:1px solid var(--line)}
.chip-grid li{display:flex; align-items:center; gap:14px; padding:20px 22px; border-right:1px solid var(--line); border-bottom:1px solid var(--line)}
.chip__dot{width:38px; height:38px; flex:0 0 38px; border-radius:50%; box-shadow:inset 0 0 0 1px rgba(20,20,15,.14)}
.chip__name{font-weight:600; font-size:.92rem}
.chip__code{margin-left:auto; font-size:.62rem; letter-spacing:.08em; color:var(--ink-faint); font-weight:600}

.contact-note{margin-top:34px; padding:22px 24px; background:var(--paper-2); border-left:2px solid var(--brass)}
.contact-note p{margin:0; font-size:.9rem; color:var(--ink-soft)}

.breadcrumb--light{color:rgba(255,255,255,.66)}
.breadcrumb--light a{color:rgba(255,255,255,.8)}
.band--tall{min-height:min(78vh, 660px)}
.page-hero--tight{padding:150px 0 62px}

@media (max-width:1080px){
  .decor-grid--4{grid-template-columns:repeat(3,1fr)}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .tier:nth-child(2n){border-right:0}
  .chip-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  body{font-size:16px}
  .decor-grid--4{grid-template-columns:repeat(2,1fr); gap:18px}
  .line-grid--2{grid-template-columns:1fr}
  .tier-grid{grid-template-columns:1fr}
  .tier{border-right:0; padding:28px 0 32px}
  .chip-grid{grid-template-columns:1fr}
  .decor__name{font-size:.98rem}
  .band--tall{min-height:66vh}
  .hero-chips li{font-size:.66rem; padding:7px 11px}
}

/* ---------- 细节修正（第三轮） ---------- */
.hero__stat b{white-space:nowrap; font-weight:600}
.hero__stat b .u{display:inline; font-size:.5em; margin-left:.12em}
.band .lede{margin-top:22px; max-width:50ch}
.band .wrap .hero__actions{margin-top:32px}
.band h1{margin-bottom:0}
.page-hero > .wrap{position:relative; z-index:2}
.page-hero__figure{position:absolute; top:0; right:0; bottom:0; width:42%; overflow:hidden; z-index:1}
.page-hero__figure img{width:100%; height:100%; object-fit:cover}
.page-hero__figure::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(90deg, var(--paper-2) 0%, rgba(239,234,225,0) 46%),
             linear-gradient(180deg, rgba(247,244,238,.28) 0%, rgba(247,244,238,0) 30%);
}
.page-hero--img .wrap{max-width:var(--wrap)}
.page-hero--img .lede{max-width:44ch}
@media (max-width:1080px){
  .page-hero__figure{width:34%; opacity:.85}
  .page-hero--img .lede{max-width:38ch}
}
@media (max-width:860px){
  .page-hero__figure{display:none}
}
.tier__use{min-height:2.5em}
.page-hero__figure::after{
  background:linear-gradient(90deg, var(--paper-2) 0%, rgba(239,234,225,.42) 9%, rgba(239,234,225,0) 30%);
}
.band h1 + .lede, .band h2 + .lede{margin-top:26px}
@media (max-width:860px){ .band h1 + .lede{margin-top:20px} }
.factory .wrap{flex:1 1 auto; width:100%; margin:0 auto}
.factory__stats{display:flex; gap:56px; flex-wrap:wrap}
.factory h2{margin-bottom:20px}
.factory p + .factory__stats{margin-top:36px}
/* 平板断点：顶栏与内页首屏避让 */
@media (max-width:1180px){
  .topbar .wrap > span:first-child{display:none}
  .topbar__links{gap:18px}
  .topbar{font-size:.62rem}
}
@media (max-width:1080px){
  .page-hero--img .hero-chips{max-width:58%}
  .page-hero--img h1{max-width:22ch; font-size:clamp(2.1rem,4vw,3.2rem)}
}

/* ---------- 第三轮：整张铺装 / 商用地胶 / 详情 ---------- */
.media-split--portrait img{aspect-ratio:3/4}
.media-split--portrait{align-items:start}
.rule-list--tight{margin-top:26px}
.rule-list--tight li{padding:16px 0}
.rule-list--tight li p{font-size:.9rem}
.section--paper2 .decor-grid{margin-top:64px}
.figure-note{margin-top:14px; font-size:.76rem; letter-spacing:.02em; color:var(--ink-faint)}
.decor{min-width:0}
.decor__meta{flex-wrap:wrap}
@media (max-width:1080px){ .decor-grid--3{grid-template-columns:repeat(3,1fr); gap:16px} }
@media (max-width:860px){ .decor-grid--3{grid-template-columns:repeat(2,1fr); gap:18px} }
.decor-grid--6{grid-template-columns:repeat(6,1fr); gap:18px}
@media (max-width:1080px){ .decor-grid--6{grid-template-columns:repeat(3,1fr)} }
@media (max-width:860px){ .decor-grid--6{grid-template-columns:repeat(2,1fr); gap:16px} }
.decor-grid--6 .decor__name{font-size:.96rem}
.decor-grid--6 .decor__code{font-size:.6rem}
.decor-grid--6 .decor__kind{display:none}
.decor-grid--6 .decor__meta{padding-top:10px; gap:6px}

/* =========================================================
   DECOR LIBRARY
   ========================================================= */
.plib-hero{padding:150px 0 56px; background:linear-gradient(180deg,var(--paper-2),var(--paper) 70%)}
.plib-hero .breadcrumb{margin-bottom:34px}
.plib-hero__grid{display:grid; grid-template-columns:1.05fr .95fr; gap:52px; align-items:end}
.plib-hero h1{font-family:var(--serif); font-weight:600; font-size:clamp(2.6rem,5.2vw,4.4rem); line-height:1.02; letter-spacing:-.02em; margin:0}
.plib-hero__text p{margin:0 0 16px; color:var(--ink-soft); font-size:1.02rem}
.plib-hero__text .lede{color:var(--ink); font-size:1.14rem; line-height:1.62}

.plib{background:var(--paper); padding-bottom:96px}
.plib-bar{position:sticky; top:0; z-index:20; background:rgba(247,244,238,.94); backdrop-filter:blur(10px); border-top:1px solid var(--line); border-bottom:1px solid var(--line); margin-bottom:36px}
.plib-bar__inner{display:flex; align-items:center; justify-content:space-between; gap:24px; padding:16px 0; flex-wrap:wrap}
.plib-chips{display:flex; gap:8px; flex-wrap:wrap; min-width:0; max-width:100%}
.plib-chip{display:inline-flex; align-items:center; gap:9px; padding:9px 16px; border:1px solid var(--line); background:transparent; border-radius:999px; font-family:var(--sans); font-size:.79rem; font-weight:600; letter-spacing:.02em; color:var(--ink-soft); cursor:pointer; transition:.25s var(--ease)}
.plib-chip span{font-size:.7rem; color:var(--ink-faint); font-weight:700}
.plib-chip:hover{border-color:var(--ink); color:var(--ink)}
.plib-chip.is-on{background:var(--ink); border-color:var(--ink); color:var(--paper)}
.plib-chip.is-on span{color:rgba(255,255,255,.6)}
.plib-search{display:flex; align-items:center; gap:10px; border-bottom:1px solid var(--line); padding:6px 2px; min-width:236px}
.plib-search svg{width:17px; height:17px; color:var(--ink-faint); flex:none}
.plib-search input{border:0; background:transparent; font-family:var(--sans); font-size:.86rem; font-weight:500; color:var(--ink); outline:none; width:100%; padding:2px 0}
.plib-search input::placeholder{color:var(--ink-faint)}
.plib-count{font-size:.72rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-faint); font-weight:600; margin:0 0 18px}
.plib-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(152px,1fr)); gap:10px}
.plib-card{position:relative; padding:0; border:0; background:var(--paper-3); aspect-ratio:1/1; overflow:hidden; cursor:zoom-in; border-radius:2px}
.plib-card img{width:100%; height:100%; object-fit:cover; display:block; transition:transform .85s var(--ease)}
.plib-card:hover img{transform:scale(1.07)}
.plib-card__code{position:absolute; left:0; right:0; bottom:0; padding:22px 11px 9px; font-family:var(--sans); font-size:.7rem; font-weight:700; letter-spacing:.1em; color:#fff; text-align:left; background:linear-gradient(transparent,rgba(20,20,15,.62)); opacity:0; transition:opacity .3s var(--ease)}
.plib-card:hover .plib-card__code,.plib-card:focus-visible .plib-card__code{opacity:1}
.plib-empty{text-align:center; color:var(--ink-soft); padding:60px 0; font-size:.95rem}

.plib-note{background:var(--deep); color:var(--paper); padding:96px 0}
.plib-note__inner{display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center}
.plib-note h2{font-family:var(--serif); font-weight:600; font-size:clamp(2rem,3.6vw,3rem); line-height:1.08; margin:14px 0 0; color:var(--paper)}
.plib-note p{color:rgba(247,244,238,.74); margin:0 0 24px}
.plib-note .eyebrow{color:var(--brass-lite)}
.plib-note .btn--dark{background:var(--paper); color:var(--ink)}

.lightbox{position:fixed; inset:0; z-index:200; display:none; place-items:center; background:rgba(20,20,15,.94); padding:36px}
.lightbox.is-on{display:grid}
.lightbox figure{margin:0; display:flex; flex-direction:column; align-items:center; gap:18px}
.lightbox img{max-width:min(660px,88vw); max-height:74vh; object-fit:contain; box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lightbox figcaption{font-family:var(--sans); font-size:.8rem; letter-spacing:.18em; text-transform:uppercase; color:rgba(247,244,238,.8); font-weight:600}
.lightbox__close{position:absolute; top:18px; right:26px; background:none; border:0; color:var(--paper); font-size:2.4rem; line-height:1; cursor:pointer; opacity:.7}
.lightbox__close:hover{opacity:1}

@media (max-width:1000px){
  .plib-hero{padding:126px 0 40px}
  .plib-hero__grid{grid-template-columns:1fr; gap:26px; align-items:start}
  .plib-note__inner{grid-template-columns:1fr; gap:26px}
  .plib-grid{grid-template-columns:repeat(auto-fill,minmax(134px,1fr)); gap:8px}
}
@media (max-width:640px){
  .plib-hero h1{font-size:clamp(2.2rem,9vw,3rem)}
  .plib-bar__inner{gap:10px; flex-direction:column; align-items:stretch}
  .plib-chips{flex-wrap:nowrap; overflow-x:auto; scrollbar-width:none; padding-bottom:2px}
  .plib-chips::-webkit-scrollbar{display:none}
  .plib-chip{flex:none}
  .plib-search{width:100%; min-width:0}
  .plib-grid{grid-template-columns:repeat(3,1fr); gap:6px}
  .plib-card__code{opacity:1; padding:16px 8px 6px; font-size:.62rem}
  .plib-chip{padding:7px 12px; font-size:.74rem}
}

/* 六项导航后：中等宽度收紧头部 */
@media (max-width:1120px){
  .nav{gap:20px}
  .nav a{font-size:.72rem; letter-spacing:.08em}
  .header-actions .btn{display:none}
}

/* 首屏右侧图：标题限宽，避免压到图片 */
.page-hero--img h1{max-width:52%; font-size:clamp(2.1rem,3.9vw,3.6rem)}
@media (max-width:1080px){ .page-hero--img h1{max-width:46%} }
@media (max-width:860px){ .page-hero--img h1{max-width:none} }

/* =========================================================
   BRAND LOGO (added 2026-11-11)
   ========================================================= */
.brand__logo{
  height:60px; width:auto; display:block; flex:0 0 auto;
  object-fit:contain; transition:height .4s var(--ease);
}
.brand{gap:12px}
.brand__text{gap:5px}
.brand__name{font-size:1.34rem}
.brand__tag{white-space:nowrap}
.site-header.is-stuck .brand__logo{height:46px}
@media (max-width:1080px){ .brand__logo{height:46px} }
@media (max-width:560px){ .brand__logo{height:42px} }
.site-footer .brand__logo{height:58px}

/* =========================================================
   FACTORY vs TRADER 对比表
   ========================================================= */
.vs{margin-top:48px; border-top:1px solid var(--line)}
.vs__row{
  display:grid; grid-template-columns:1.08fr .95fr 1.12fr; gap:34px;
  padding:24px 0; border-bottom:1px solid var(--line); align-items:start;
}
.vs__row--head{padding:13px 0}
.vs__row--head span{
  font-family:var(--sans); font-size:.66rem; letter-spacing:.16em;
  text-transform:uppercase; color:var(--ink-faint); font-weight:700;
}
.vs__row--head span:last-child{color:var(--brass)}
.vs__q{margin:0; font-weight:600; font-size:.98rem; color:var(--ink); line-height:1.45}
.vs__a,.vs__b{margin:0; font-size:.92rem; line-height:1.62}
.vs__a{color:var(--ink-faint)}
.vs__b{color:var(--ink-soft)}
.vs i{display:none}

@media (max-width:880px){
  .vs{margin-top:32px}
  .vs__row{grid-template-columns:1fr; gap:9px; padding:20px 0}
  .vs__row--head{display:none}
  .vs i{
    display:block; font-style:normal; font-family:var(--sans);
    font-size:.62rem; letter-spacing:.14em; text-transform:uppercase;
    color:var(--ink-faint); font-weight:700; margin-bottom:3px;
  }
  .vs__b i{color:var(--brass)}
  .vs__q{font-size:1rem; margin-bottom:4px}
}

/* =========================================================
   头部空间分配（品牌放大后）
   ========================================================= */
.brand{flex:0 0 auto}
.brand__text{min-width:0}
.header-inner{gap:30px}
.header-actions{flex:0 0 auto}

@media (max-width:1380px){
  .nav{gap:24px}
  .nav a{font-size:.74rem; letter-spacing:.075em}
  .brand__logo{height:52px}
  .brand__name{font-size:1.18rem}
  .brand__tag{font-size:.5rem; letter-spacing:.18em}
  .header-actions .btn{padding:12px 20px; font-size:.68rem; letter-spacing:.08em}
}
@media (max-width:1200px){
  .nav{gap:18px}
  .brand__logo{height:46px}
  .brand__name{font-size:1.08rem}
  .header-inner{gap:20px}
}

/* 图文分栏内标题与正文的呼吸感 */
.media-split__text h2{margin-bottom:24px}
.media-split__text .eyebrow{margin-bottom:18px}
.media-split__text p{margin-bottom:1em}