:root{
  --paper:#F5F1E9;
  --white:#FFFFFF;
  --ink:#221F1A;
  --ink-soft:#5C554A;
  --muted:#938A7B;
  --line:#E4DDCF;
  --ember:#C2331E;
  --night:#1A1712;
  --night-soft:#8F8777;
  --night-line:#332E25;
  --night-text:#F3EBDD;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--ember);outline-offset:2px}
.wrap{max-width:1200px;margin:0 auto;padding:0 22px}
.band{padding:clamp(64px,9vw,118px) 0}
section[id]{scroll-margin-top:96px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:0}

/* notice bar */
.notice{background:var(--night);color:var(--night-text);font-size:12px;letter-spacing:.08em;text-align:center;padding:8px 16px}

/* header */
.sitehead{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line)}
.headrow{display:flex;align-items:center;min-height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand img{height:46px;width:auto}
.brand .word b{display:block;font-size:21px;font-weight:800;letter-spacing:.16em;line-height:1.1}
.brand .word small{display:block;font-size:10px;letter-spacing:.34em;color:var(--muted);margin-top:2px;white-space:nowrap}
#nav{display:none}
#nav.open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--white);border-bottom:1px solid var(--line);padding:6px 22px 18px}
#nav a{margin:0;padding:13px 0;font-size:16px;border-bottom:1px solid var(--line)}
#nav a.nav-cta{border-bottom:0;margin-top:14px;text-align:center;background:var(--ink);color:#fff;padding:12px 0}
.burger{display:inline-flex;flex-direction:column;gap:5px;background:none;border:0;padding:10px;margin-left:auto;cursor:pointer}
.burger i{width:22px;height:2px;background:var(--ink);display:block}

/* buttons */
.btn{display:inline-block;padding:13px 28px;font-size:15px;letter-spacing:.1em;border:1px solid transparent;line-height:1.2;cursor:pointer}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:var(--ember)}
.btn-line{border-color:rgba(34,31,26,.55);color:var(--ink)}
.btn-line:hover{background:var(--ink);color:#fff}

/* section heading */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;border-bottom:1px solid var(--ink);padding-bottom:16px;flex-wrap:wrap}
.sec-title{margin:0;font-size:clamp(29px,4vw,46px);font-weight:900;letter-spacing:.02em;line-height:1.15}
.sec-title::before{content:"";display:inline-block;width:10px;height:10px;background:var(--ember);margin-right:16px;vertical-align:6px}
.sec-spec{margin:0;font-size:12.5px;color:var(--ink-soft);letter-spacing:.08em;text-align:right}

/* hero */
.hero{padding-bottom:clamp(44px,5vw,76px)}
.hero .wrap{padding-top:clamp(38px,6vw,78px)}
.hero-grid{display:grid;grid-template-columns:1fr;gap:42px;align-items:center}
.hero-title{margin:0 0 24px;font-size:clamp(40px,7vw,88px);font-weight:900;line-height:1.14;letter-spacing:.01em}
.lede{margin:0 0 32px;max-width:56ch;font-size:16.5px;color:var(--ink-soft)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.chips li{border:1px solid var(--line);background:var(--white);color:var(--ink-soft);font-size:13px;letter-spacing:.1em;padding:7px 15px}
.hero-fig{margin:0;position:relative}
.frame{border:0;background:transparent}
.frame img{width:100%;aspect-ratio:1 / .96;object-fit:cover;mix-blend-mode:multiply}
.tag-plate{position:absolute;left:16px;bottom:16px;background:rgba(245,241,233,.94);border:1px solid rgba(34,31,26,.4);padding:9px 14px;max-width:80%}
.tag-plate b{display:block;font-size:14.5px;letter-spacing:.04em}
.tag-plate span{font-size:11px;color:var(--muted);letter-spacing:.08em}
.fig-note{font-size:12px;color:var(--muted);letter-spacing:.06em;margin-top:10px}

/* products */
.products{background:var(--white)}
.pgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.ptile{margin:0;border:1px solid var(--line);background:var(--white);display:flex;flex-direction:column}
.ptile:hover{border-color:var(--ink)}
.ptile .ph{aspect-ratio:1 / 1;overflow:hidden;background:var(--white)}
.ptile .ph img{width:100%;height:100%;object-fit:cover}
.ptile figcaption{display:flex;justify-content:space-between;align-items:baseline;gap:8px;padding:10px 12px 12px;border-top:1px solid var(--line);font-size:13.5px}
.ptile figcaption b{font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;flex:1 1 auto}
.ptile figcaption span{font-size:11px;color:var(--muted);white-space:nowrap}
.ph-empty{background:var(--paper);display:flex;align-items:center;justify-content:center;position:relative}
.ph-empty::before{content:"";position:absolute;inset:11px;border:1px dashed var(--muted)}
.ph-empty span{position:relative;font-size:12px;color:var(--muted);letter-spacing:.08em;z-index:1}
.catalog-note{margin:18px 0 0;font-size:12.5px;color:var(--muted)}
@media (max-width:600px){
  .ptile figcaption{flex-direction:column;align-items:flex-start;gap:1px}
  .ptile figcaption b{max-width:100%}
  .ptile figcaption span{font-size:11px}
}

/* flow (dark) */
.dark{background:var(--night);color:var(--night-text)}
.dark .sec-head{border-bottom-color:rgba(243,235,221,.28)}
.dark .sec-title{color:var(--night-text)}
.dark .sec-spec{color:var(--night-soft)}
.dark .sec-title::before{background:var(--ember)}
.steps{list-style:none;margin:44px 0 0;padding:0;border-top:1px solid var(--night-line);display:grid;grid-template-columns:1fr}
.steps li{padding:22px 2px 30px 0;border-bottom:1px solid var(--night-line)}
.step-no{font-size:11px;letter-spacing:.3em;color:var(--night-soft)}
.steps h3{margin:0 0 8px;font-size:18px;font-weight:800;letter-spacing:.03em;color:var(--night-text)}
.steps p{margin:0;font-size:13.5px;color:var(--night-soft);line-height:1.9;max-width:34ch}
.step-top{display:flex;align-items:center;gap:16px;margin-bottom:16px}
.s-ico{width:48px;height:48px;flex:none;border:1px solid rgba(243,235,221,.24);display:flex;align-items:center;justify-content:center;color:var(--ember)}
.s-ico svg{width:26px;height:26px}
.step-top .step-no{margin-left:auto}
.flow-note{margin:26px 0 0;font-size:12px;color:var(--night-soft);letter-spacing:.04em}

/* about */
.about{background:var(--paper)}
.about-grid{display:grid;grid-template-columns:1fr;gap:40px;margin-top:40px}
.about p{margin:0 0 18px;font-size:15.5px;color:var(--ink-soft);max-width:62ch}
.facts{list-style:none;margin:8px 0 0;padding:0;border-top:1px solid var(--line)}
.facts li{display:flex;gap:14px;align-items:baseline;padding:15px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.facts li::before{content:"";flex:none;width:8px;height:8px;background:var(--ember);transform:translateY(-2px)}
.facts b{font-weight:700}
.factory-card{background:var(--night);color:var(--night-text);padding:34px 32px 26px;display:flex;flex-direction:column;gap:20px;position:relative}
.factory-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--ember)}
.fc-head{display:flex;align-items:center;gap:16px}
.fc-logo{width:58px;height:58px;background:var(--white);display:flex;align-items:center;justify-content:center;flex:none}
.fc-logo img{width:52px;height:auto;display:block}
.fc-head b{display:block;font-size:24px;letter-spacing:.14em;color:var(--night-text);line-height:1.1}
.fc-head i{display:block;font-style:normal;font-size:10.5px;letter-spacing:.3em;color:var(--night-soft);margin-top:3px}
.fc-lead{margin:0;padding-top:20px;border-top:1px solid var(--night-line);font-size:14px;color:var(--night-soft);line-height:2}
.fc-rows{margin:0;border-top:1px solid var(--night-line)}
.fc-rows div{display:flex;gap:18px;padding:12px 0;border-bottom:1px solid var(--night-line);font-size:13px;line-height:1.7}
.fc-rows dt{flex:none;width:70px;color:var(--night-soft);font-size:11.5px;letter-spacing:.12em;padding-top:2px}
.fc-rows dd{margin:0;color:#EFE7D8;font-weight:600}
.fc-tel{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--night-line);background:rgba(255,255,255,.05);padding:13px 16px}
.fc-tel span{font-size:12px;color:var(--night-soft);letter-spacing:.14em}
.fc-tel a{font-size:21px;font-weight:800;letter-spacing:.05em;color:#F07A4C}
.fc-tel a:hover{color:#fff}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr;gap:44px;margin-top:40px}
.c-rows{list-style:none;margin:0;padding:0;border-top:1px solid var(--night-line)}
.c-rows li{display:flex;gap:26px;justify-content:space-between;padding:15px 0;border-bottom:1px solid var(--night-line);font-size:14.5px;flex-wrap:wrap}
.c-rows em{font-style:normal;color:var(--night-soft);font-size:12px;letter-spacing:.16em;min-width:74px}
.c-rows b{font-weight:600;color:var(--night-text)}
.qr-col{display:flex;flex-direction:column;justify-content:center;height:100%}
.qr-grid{display:grid;grid-template-columns:1fr;gap:16px}
.qr-card{background:var(--white);color:var(--ink);padding:24px 18px 20px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px}
.qr-box{width:150px;height:150px;background:var(--white);display:flex;align-items:center;justify-content:center;overflow:hidden;flex:none}
.qr-box img{display:block;max-width:100%;max-height:100%;object-fit:contain}
.qr-card h3{margin:2px 0 0;font-size:19px;font-weight:800;letter-spacing:.06em}
.qr-card p{margin:0;font-size:12.5px;color:var(--ink-soft);line-height:1.9;max-width:30ch}
.qr-card .qr-foot{margin-top:2px;font-size:11px;color:var(--muted);letter-spacing:.04em}
.qr-tip{margin:20px auto 0;max-width:430px;padding:12px 16px;border:1px solid rgba(243,235,221,.24);color:var(--night-soft);font-size:12.5px;letter-spacing:.03em;text-align:center;line-height:1.8}
.qr-tip b{color:var(--night-text);font-weight:700}

/* footer */
.foot{background:#12100C;color:#C9C1B0;font-size:13.5px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:30px;padding:clamp(44px,6vw,70px) 0 0}
.foot h4{margin:0 0 14px;font-size:12px;letter-spacing:.24em;color:#8F8777;font-weight:600}
.foot .f-word b{display:block;font-size:20px;letter-spacing:.18em;color:#F3EBDD}
.foot .f-word span{font-size:11px;color:#8F8777;letter-spacing:.3em}
.foot .f-intro{margin:14px 0 0;max-width:34ch;color:#8F8777;font-size:13px;line-height:2}
.foot ul{list-style:none;margin:0;padding:0}
.foot ul a{display:block;padding:5px 0;color:#B9B0A0}
.foot ul a:hover{color:#fff}
.foot .f-contact div{padding:5px 0;color:#B9B0A0}
.foot .f-contact em{font-style:normal;color:#8F8777;margin-right:10px}
.foot-bottom{margin-top:44px;padding:18px 0;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:12px;color:#7E7666}
.foot-bottom a{color:#B9B0A0;transition:color .2s}
.foot-bottom a:hover{color:#fff}

/* responsive */
@media (min-width:760px){
  .pgrid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .shotgrid{grid-template-columns:1.3fr .8fr}
  .steps{grid-template-columns:repeat(2,1fr);column-gap:44px}
  .steps li:nth-child(even){border-left:1px solid var(--night-line);padding-left:44px}
  .qr-grid{grid-template-columns:1fr 1fr}
}
@media (min-width:900px){
  .burger{display:none}
  #nav{display:flex;margin-left:auto;align-items:center;gap:34px}
  #nav a{font-size:15px;letter-spacing:.06em;border:0;padding:0}
  #nav a:hover{color:var(--ember)}
  #nav a.nav-cta{border:1px solid var(--ink);padding:9px 20px;margin-top:0;background:none;color:var(--ink)}
  #nav a.nav-cta:hover{background:var(--ink);color:#fff}
}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:1.05fr .92fr}
  .about-grid{grid-template-columns:1.05fr .95fr}
  .contact-grid{grid-template-columns:1fr .95fr}
  .steps{grid-template-columns:repeat(4,1fr)}
  .steps li:nth-child(even){border-left:0;padding-left:0}
  .steps li{padding-right:44px}
  .foot-grid{grid-template-columns:1.4fr 1fr 1.1fr;gap:60px}
}
@media (min-width:1120px){
  .pgrid{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media (max-width:480px){
  .qr-box{width:128px;height:128px}
}

/* products spacing */
.products .sec-head{margin-bottom:26px}

/* floating quick bar */
.fab{position:fixed;right:14px;bottom:26px;z-index:90;display:none;flex-direction:column;gap:10px}
.fab-item{position:relative;width:46px;height:46px;background:var(--white);border:1px solid var(--line);color:var(--ink);display:flex;align-items:center;justify-content:center;cursor:pointer;padding:0;transition:color .2s ease,border-color .2s ease}
.fab-item svg{width:20px;height:20px}
.fab-item:hover{border-color:var(--ember);color:var(--ember)}
.fab-pop{position:absolute;right:56px;top:50%;transform:translateY(-50%) translateX(8px);background:var(--white);border:1px solid var(--line);padding:10px 14px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s ease,transform .18s ease,visibility .18s;box-shadow:0 12px 28px rgba(34,31,26,.12);white-space:nowrap;text-align:left;z-index:91}
.fab-item:hover .fab-pop,.fab-item.open .fab-pop{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0);pointer-events:auto}
.fab-pop b{display:block;font-size:15px;color:var(--ink);letter-spacing:.02em;line-height:1.5}
.fab-pop small{display:block;font-size:11px;color:var(--muted);margin-top:3px;white-space:normal;max-width:170px;line-height:1.6}
.fab-pop.qr{padding:10px;text-align:center;white-space:normal}
.fab-pop.qr img{display:block;height:170px;width:auto;max-width:220px;object-fit:contain;background:var(--white);border:1px solid var(--line)}
.fab-pop.qr small{margin:8px auto 2px}
.fab-top{opacity:0;visibility:hidden;pointer-events:none;transform:translateY(8px);transition:opacity .2s ease,transform .2s ease,visibility .2s;border-color:var(--ink);background:var(--ink);color:var(--night-text)}
.fab.show-top .fab-top{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
.fab-top:hover{border-color:var(--ember);background:var(--ember);color:#fff}
@media (min-width:1024px){.fab{display:flex}}