@font-face{font-family:"Manrope";src:url(../fonts/manrope.woff2) format("woff2");font-weight:200 800;font-display:swap}
:root{--font:"Manrope";--bg:#F2F3F5;--ink:#1C1C1E;--muted:#626269;--line:#DCDDE2;--card:#FFFFFF;--chip:#E6E7EB;--art-bg:#ECEDF1;--h-weight:800;--h-track:-.04em;--r:28px;--focus:#5B5BD6;--ribbon-bg:#1C1C1E;--booth-bg:#1C1C1E;--booth-ink:#F2F3F5;--case:#A8B5A2}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#121214;--ink:#F2F3F5;--muted:#A1A1AA;--line:#2A2A30;--card:#1B1B1F;--chip:#26262C;--art-bg:#1F1F24;--ribbon-bg:#000;--booth-bg:#F2F3F5;--booth-ink:#121214;color-scheme:dark}}
.hero{padding:56px 0 24px}
.hero .wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;gap:12px}.stage{order:-1}.hero{padding-top:24px}}
.hero h1{max-width:11ch}
.stage{display:grid;place-items:center;gap:18px}
.stage .big{width:min(240px,56vw);transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.stage .big .body{fill:var(--case);transition:fill .45s ease}
.stage .big.bump{transform:rotate(-4deg)}
.swatches{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.swatches button{all:unset;cursor:pointer;width:38px;height:38px;border-radius:50%;box-shadow:inset 0 0 0 1px rgba(0,0,0,.12)}
.swatches button[aria-pressed="true"]{box-shadow:0 0 0 3px var(--bg),0 0 0 5px var(--ink)}
.swatch-name{font-weight:700;font-size:15px;min-height:1.5em}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
@media (max-width:860px){.split{grid-template-columns:1fr}}
.prod .art svg{width:auto;height:84%}
@media (max-width:900px){.stage .big{width:140px}.swatches{gap:8px}.swatches button{width:30px;height:30px}}
.showlog{display:grid;gap:0;border-top:1px solid var(--line)}
.showlog div{display:grid;grid-template-columns:120px 1fr;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.showlog b{font-size:15px}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:env(safe-area-inset-top,0px)}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font),"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Noto Sans SC",system-ui,sans-serif;font-size:17px;line-height:1.55;text-rendering:optimizeLegibility}
html[data-lang="en"] [lang="zh-CN"]{display:none!important}
html[data-lang="zh"] [lang="en"]{display:none!important}
html[data-lang="zh"] body{letter-spacing:.01em}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--focus,#2B6BFF);outline-offset:3px;border-radius:4px}
.wrap{width:min(1180px,100% - 40px);margin-inline:auto}
.ribbon{background:var(--ribbon-bg,#000);color:var(--ribbon-ink,#fff);font-size:12.5px;line-height:1.4;padding:8px 0;text-align:center}
.ribbon a{color:inherit}
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--bar-bg,var(--bg));border-bottom:1px solid var(--line)}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:21;background:var(--bar-bg,var(--bg))}
.top .wrap{display:flex;align-items:center;gap:20px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;letter-spacing:-.01em;line-height:1.1;margin-right:auto}
.brand img{height:34px;width:auto;border-radius:6px}
.brand small{display:block;font-weight:500;font-size:12px;color:var(--muted);letter-spacing:0}
.nav{display:flex;gap:4px}
.nav a{text-decoration:none;padding:8px 12px;border-radius:999px;font-size:15px;color:var(--muted)}
.nav a[aria-current="page"],.nav a:hover{color:var(--ink);background:var(--chip)}
.lang{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;flex:none}
.lang button{all:unset;cursor:pointer;padding:6px 11px;font-size:13px;font-weight:600;color:var(--muted)}
.lang button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.menu-btn{all:unset;display:none;cursor:pointer;padding:8px;font-size:14px;font-weight:600}
@media (max-width:860px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;background:var(--bar-bg,var(--bg));border-bottom:1px solid var(--line);padding:8px 20px 16px}
  .menu-open .nav{display:flex}
  .nav a{border-radius:10px;padding:12px}
}
.btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-weight:650;border-radius:var(--btn-r,999px);padding:13px 22px;font-size:16px;border:2px solid var(--ink);cursor:pointer;font-family:inherit}
.btn.solid{background:var(--ink);color:var(--bg)}
.btn.ghost{background:transparent;color:var(--ink)}
.btns{display:flex;flex-wrap:wrap;gap:12px}
section{padding:72px 0}
h1,h2,h3{line-height:1.08;margin:0 0 .5em;font-weight:var(--h-weight,750);letter-spacing:var(--h-track,-.02em)}
h1{font-size:clamp(40px,6.4vw,84px)}
h2{font-size:clamp(30px,4vw,52px)}
h3{font-size:22px;letter-spacing:-.01em}
html[data-lang="zh"] h1,html[data-lang="zh"] h2{letter-spacing:0;line-height:1.2}
.lead{font-size:clamp(18px,1.6vw,21px);color:var(--muted);max-width:60ch}
.muted{color:var(--muted)}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0;border-top:1px solid var(--line)}
.facts div{padding:22px 20px 22px 0;border-bottom:1px solid var(--line)}
.facts b{display:block;font-size:30px;line-height:1.1;letter-spacing:-.02em}
.facts div>span{color:var(--muted);font-size:15px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r,18px);padding:22px;display:flex;flex-direction:column;gap:8px}
.prod .art{position:relative;aspect-ratio:4/3;border-radius:calc(var(--r,18px) - 6px);background:var(--art-bg);overflow:hidden;display:grid;place-items:center;margin-bottom:8px}
.prod .art svg{width:82%;height:auto}
.prod .art img.photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.prod h3{margin:4px 0 0}
.spec{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0}
.spec span{font-size:13px;padding:4px 10px;border-radius:999px;background:var(--chip);color:var(--ink)}
.price{display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:12px;margin-top:auto;font-size:15px}
.price b{font-size:17px}
.steps{list-style:none;padding:0;margin:0;display:grid;gap:0;counter-reset:s}
.steps li{counter-increment:s;display:grid;grid-template-columns:56px 1fr;gap:16px;padding:22px 0;border-top:1px solid var(--line)}
.steps li::before{content:counter(s);font-weight:750;font-size:28px;line-height:1;color:var(--accent-ink,var(--ink))}
.steps h3{margin:0 0 4px}
.steps p{margin:0;color:var(--muted)}
.certs{display:flex;flex-wrap:wrap;gap:10px}
.certs span{border:1.5px solid var(--ink);border-radius:8px;padding:8px 14px;font-weight:700;letter-spacing:.02em}
details{border-top:1px solid var(--line);padding:18px 0}
details summary{cursor:pointer;font-weight:650;font-size:18px;list-style:none;display:flex;justify-content:space-between;gap:12px}
details summary::after{content:"+";font-weight:400}
details[open] summary::after{content:"−"}
details p{margin:10px 0 0;color:var(--muted);max-width:70ch}
.booth{border-radius:var(--r,18px);padding:28px;display:grid;gap:6px;background:var(--booth-bg,var(--ink));color:var(--booth-ink,var(--bg))}
.booth b{font-size:24px}
form{display:grid;gap:14px}
label{display:grid;gap:6px;font-weight:600;font-size:15px}
input,select,textarea{font:inherit;font-weight:400;padding:13px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--card);color:var(--ink);width:100%}
textarea{min-height:120px;resize:vertical}
.form-note{border-radius:12px;padding:14px;background:var(--chip);font-size:15px}
.slot{border-bottom:1.5px dashed var(--muted);color:var(--muted)}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.contact-list a,.contact-list div{display:flex;justify-content:space-between;gap:12px;align-items:center;text-decoration:none;padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:var(--card)}
footer{border-top:1px solid var(--line);padding:40px 0 56px;font-size:14px;color:var(--muted)}
footer .wrap{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
footer b{color:var(--ink)}
footer a{color:var(--ink)}
.links-page{max-width:460px;margin:0 auto;padding:48px 20px 72px;text-align:center}
.links-page .logo{width:84px;height:84px;border-radius:22px;margin:0 auto 14px;object-fit:cover;background:var(--card)}
.links-page h1{font-size:28px;margin-bottom:4px}
.links-page .lk{display:grid;gap:12px;margin-top:26px}
.links-page .lk a{display:block;text-decoration:none;padding:16px;border-radius:16px;border:1.5px solid var(--ink);font-weight:650;background:var(--card)}
.links-page .lk a.primary{background:var(--ink);color:var(--bg)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}