/* NICEMAY beautydevicemaker.com — Material Lab 设计系统
   暖白 #FAF7F2 / 香槟金 #C9A24B / 深 #1A1B1E / mono 参数刻字 */
:root{
  --bg:#FAF7F2; --surface:#FFFFFF; --deep:#1A1B1E; --ink:#1A1B1E;
  --muted:#6B7280; --gold:#C9A24B; --gold-deep:#9A7A2E; --ember:#E4572E;
  --line:#E8E2D8; --cta:#1A1B1E; --cta-tx:#FAF7F2;
  --r:18px; --wrap:1200px;
  --fd:"Fraunces",Georgia,"Times New Roman",serif;
  --fb:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --fm:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--fb);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--fd);font-weight:600;line-height:1.2;margin:0 0 16px;letter-spacing:-.01em}
h1{font-size:clamp(32px,4.6vw,54px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:20px}
p{margin:0 0 16px}
.mono{font-family:var(--fm);font-size:.86em;letter-spacing:.02em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
section{padding:64px 0}
.skip{position:absolute;left:-9999px;top:8px;background:var(--deep);color:#fff;padding:10px 16px;border-radius:8px;z-index:200}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}

/* ---------- 顶栏 ---------- */
.topbar{position:sticky;top:0;z-index:100;background:rgba(250,247,242,.96);border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;gap:32px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--deep);color:var(--gold);font-family:var(--fd);font-weight:700;font-size:22px;display:flex;align-items:center;justify-content:center}
.brand-tx{font-family:var(--fd);font-weight:700;font-size:20px;letter-spacing:.06em;line-height:1.1;display:flex;flex-direction:column}
.brand-tx small{font-family:var(--fm);font-weight:400;font-size:11px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.mainnav ul{list-style:none;margin:0;padding:0;display:flex;gap:28px;align-items:center}
.mainnav a{text-decoration:none;font-weight:500;font-size:15px;padding:8px 0}
.mainnav a[aria-current="page"]{color:var(--gold-deep)}
.has-drop{position:relative}
.drop{position:absolute;top:100%;left:-16px;min-width:270px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 44px rgba(26,27,30,.12);padding:12px;display:none;flex-direction:column;gap:2px}
.has-drop .drop{position:absolute}
.drop li{list-style:none}
.drop a{display:block;padding:10px 14px;border-radius:10px;font-size:14px}
@media (hover:hover){
  .has-drop:hover .drop,.has-drop:focus-within .drop{display:flex}
  .drop a:hover{background:var(--bg)}
  .mainnav>ul>li>a:hover{color:var(--gold-deep)}
}
.btn{display:inline-block;text-decoration:none;font-weight:600;border-radius:999px;padding:14px 30px;border:1px solid transparent;transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease)}
.btn:active{transform:scale(.97)}
.btn-dark{background:var(--cta);color:var(--cta-tx)}
.btn-gold{background:var(--gold);color:var(--deep)}
.btn-line{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-sm{padding:10px 22px;font-size:14px}
@media (hover:hover){
  .btn-dark:hover{background:#2c2e33}
  .btn-gold:hover{background:#d8b25e}
  .btn-line:hover{background:var(--ink);color:var(--bg)}
}
.menubtn{display:none;background:none;border:0;cursor:pointer;padding:12px}
.menubtn span{display:block;width:26px;height:2px;background:var(--ink);margin:6px 0;border-radius:2px}
.mnav{display:none}

/* ---------- 光谱带签名 ---------- */
.spectrum-band{height:8px;border-radius:999px;background:linear-gradient(90deg,#E9A93F 0%,#E4572E 38%,#A83232 68%,#3E1B1B 100%)}
.spectrum-band.deco{opacity:.9}
.spectrum-wrap{margin:0 0 28px}
.spectrum-meta{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-top:10px;flex-wrap:wrap}
.spectrum-meta .mono{font-size:13px;color:var(--ink)}
.spectrum-note{font-size:11px;color:var(--muted)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 72px;background:var(--bg)}
.hero-glow{position:absolute;inset:0;pointer-events:none;opacity:.5;background:
  radial-gradient(620px 340px at 12% 18%,rgba(233,169,63,.28),transparent 70%),
  radial-gradient(560px 320px at 88% 30%,rgba(228,87,46,.20),transparent 70%)}
.hero-in{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-in>*{min-width:0}
.hero h1{margin:18px 0 16px}
.hero .lede{font-size:18px;color:var(--muted);max-width:34em}
.hero-cta{display:flex;gap:16px;margin:28px 0 36px;flex-wrap:wrap}
.evbar{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--deep);color:var(--cta-tx);border-radius:var(--r);overflow:hidden}
.evbar>*{min-width:0}
.evbar div{padding:20px 18px;border-left:1px solid rgba(250,247,242,.14)}
.evbar div:first-child{border-left:0}
.evbar b{display:block;font-family:var(--fm);font-size:22px;font-weight:500;color:var(--gold);margin-bottom:6px}
.evbar span{font-size:13px;color:#C9C4B8;line-height:1.45;display:block}
.evbar-fine{font-size:12px;color:var(--muted);margin-top:10px}
.hero-visual{position:relative}
.hero-visual .frame{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:0 24px 60px rgba(26,27,30,.10)}
.hero-visual img{border-radius:12px;width:100%}
.param-strip{display:flex;gap:18px;margin-top:18px;flex-wrap:wrap;font-family:var(--fm);font-size:12px;color:var(--muted)}
.param-strip b{color:var(--ink);font-weight:500}

/* ---------- 通用区块 ---------- */
.kicker{font-family:var(--fm);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-deep);margin:0 0 12px}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head p{color:var(--muted);font-size:17px}

/* 技术三栏 */
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.trio>*{min-width:0}
.tcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:32px 28px;position:relative;overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.tcard:active{transform:scale(.98)}
.tcard .spectrum-band{height:6px;margin:-32px -28px 24px;border-radius:0}
.tcard h3{margin-bottom:10px}
.tcard p{color:var(--muted);font-size:15px}
.tcard .mono{font-size:12px;color:var(--gold-deep)}
@media (hover:hover){.tcard:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(26,27,30,.10)}}

/* 产品线矩阵 */
.lines{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.lines>*{min-width:0}
.lcard{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;text-decoration:none;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.lcard:active{transform:scale(.98)}
.lcard .spectrum-band{height:5px;border-radius:0}
.lcard .ph{aspect-ratio:4/3;background:#F1ECE2;display:flex;align-items:center;justify-content:center;overflow:hidden}
.lcard .ph img{width:100%;height:100%;object-fit:cover}
.lcard .ph .code{font-family:var(--fm);font-size:15px;color:var(--muted)}
.lcard .tx{padding:20px 20px 24px}
.lcard h3{font-size:18px;margin-bottom:8px}
.lcard p{font-size:14px;color:var(--muted);margin-bottom:12px}
.lcard .go{font-family:var(--fm);font-size:13px;color:var(--gold-deep)}
@media (hover:hover){.lcard:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(26,27,30,.10)}}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:st}
.steps>*{min-width:0}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px 24px}
.step::before{counter-increment:st;content:"0" counter(st);font-family:var(--fm);font-size:13px;color:var(--gold-deep);letter-spacing:.1em}
.step h3{margin:12px 0 8px;font-size:19px}
.step p{font-size:14px;color:var(--muted);margin:0}
.step .mono{font-size:12px;color:var(--ink)}

/* 工厂证据条 */
.factory{background:var(--deep);color:#EDE8DC;border-radius:26px;padding:56px;position:relative;overflow:hidden}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin:32px 0}
.facts>*{min-width:0}
.facts b{display:block;font-family:var(--fm);font-weight:500;font-size:30px;color:var(--gold);margin-bottom:8px}
.facts span{font-size:14px;color:#B9B3A4}
.fgallery{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:32px}
.fgallery>*{min-width:0}
.fgallery figure{margin:0}
.fgallery img{border-radius:12px;aspect-ratio:4/3;object-fit:cover;width:100%}
.fgallery figcaption{font-size:12px;color:#8f8a7c;margin-top:8px}

/* CTA 通栏 */
.cta-band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);text-align:center}
.cta-band .wrap{max-width:760px}
.cta-band h2{margin:20px 0 12px}
.cta-band p{color:var(--muted);margin-bottom:28px}

/* ---------- 页脚 ---------- */
.footer{background:var(--bg);padding:0 0 32px}
.footer .spectrum-band{margin-bottom:48px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-grid>*{min-width:0}
.foot-grid h3{font-size:15px;font-family:var(--fb);font-weight:600;margin-bottom:16px}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin-bottom:10px;font-size:14px}
.foot-grid a{text-decoration:none;color:var(--muted)}
.foot-brand p{font-size:14px;color:var(--muted)}
.foot-brand .mono{font-size:12px}
.fine{font-size:13px;color:var(--muted)}
.foot-base{display:flex;justify-content:space-between;gap:16px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);flex-wrap:wrap}
@media (hover:hover){.foot-grid a:hover{color:var(--ink)}}

/* ---------- 分类页 ---------- */
.pagehead{padding:56px 0 40px}
.pagehead h1{margin:14px 0 14px}
.pagehead .lede{font-size:17px;color:var(--muted);max-width:46em}
.crumbs{font-family:var(--fm);font-size:12px;color:var(--muted);margin-bottom:16px}
.crumbs a{color:var(--gold-deep);text-decoration:none}
.catlayout{display:grid;grid-template-columns:240px 1fr;gap:40px;align-items:start}
.catlayout>*{min-width:0}
.filters{position:sticky;top:96px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.filters h3{font-size:14px;font-family:var(--fb);margin:0 0 12px}
.filters .fgroup{margin-bottom:20px}
.filters .fgroup:last-child{margin-bottom:0}
.fbtn{display:inline-block;margin:0 8px 8px 0;padding:9px 16px;border:1px solid var(--line);border-radius:999px;background:var(--bg);font-size:13px;cursor:pointer;font-family:var(--fb);transition:all .25s var(--ease)}
.fbtn:active{transform:scale(.95)}
.fbtn.on{background:var(--deep);color:var(--cta-tx);border-color:var(--deep)}
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.matrix>*{min-width:0}
.mcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;text-decoration:none;display:flex;flex-direction:column;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.mcard:active{transform:scale(.98)}
.mcard .ph{aspect-ratio:4/3;background:#F1ECE2;overflow:hidden;display:flex;align-items:center;justify-content:center}
.mcard .ph img{width:100%;height:100%;object-fit:cover}
.mcard .ph .nocode{font-family:var(--fm);color:var(--muted);font-size:14px}
.mcard .tx{padding:18px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.mcard .code{font-family:var(--fm);font-size:13px;color:var(--gold-deep)}
.mcard h3{font-size:16px;font-family:var(--fb);font-weight:600;margin:0}
.mcard .note{font-size:13px;color:var(--muted);margin:0;flex:1}
.mcard .tags{display:flex;gap:8px;flex-wrap:wrap}
.mcard .tags span{font-family:var(--fm);font-size:11px;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:6px 10px;color:var(--muted)}
.mcard .detail{font-size:13px;font-weight:600;color:var(--ink)}
@media (hover:hover){.mcard:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(26,27,30,.10)}}
.subsec{margin-top:56px}
.subsec>h2{margin-bottom:8px}
.subsec>p{color:var(--muted);margin-bottom:28px}

/* ---------- 型号页 ---------- */
.prod{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.prod>*{min-width:0}
.pgallery{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:32px}
.pgallery img{border-radius:12px;width:100%}
.pgallery .cap{font-size:12px;color:var(--muted);margin-top:12px;text-align:center}
.pside{position:sticky;top:96px;background:var(--deep);color:#EDE8DC;border-radius:22px;padding:36px 32px}
.pside .code{font-family:var(--fm);color:var(--gold);font-size:14px;letter-spacing:.08em}
.pside h2{color:#fff;margin:10px 0 12px;font-size:26px}
.pside p{font-size:14px;color:#B9B3A4}
.pside .facts-mini{margin:20px 0;padding:0;list-style:none}
.pside .facts-mini li{font-size:14px;padding:10px 0;border-top:1px solid rgba(250,247,242,.14);display:flex;justify-content:space-between;gap:12px}
.pside .facts-mini span{color:#8f8a7c}
.pside .btn{width:100%;text-align:center;margin-top:8px}
.prose{max-width:860px}
.prose h2{margin-top:48px}
.prose ul{padding-left:22px}
.prose li{margin-bottom:10px}
.prose table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px}
.prose th,.prose td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.prose th{font-weight:600;white-space:nowrap;width:220px}
.tbl{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:14px}
details.faq{background:var(--surface);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;padding:0}
details.faq summary{cursor:pointer;padding:18px 22px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-family:var(--fm);color:var(--gold-deep)}
details.faq[open] summary::after{content:"–"}
details.faq .a{padding:0 22px 20px;color:var(--muted)}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
.related>*{min-width:0}

/* ---------- 博客 ---------- */
.bloglist{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.bloglist>*{min-width:0}
.post{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.post>*{min-width:0}
.article{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:56px;max-width:100%}
.article>*{min-width:0}
.article h1{font-size:clamp(28px,3.6vw,40px);margin-bottom:12px}
.article .meta{font-family:var(--fm);font-size:12px;color:var(--muted);margin-bottom:28px}
.article h2{margin-top:44px}
.article img{border-radius:12px;margin:24px 0}
.article ul,.article ol{padding-left:22px}
.article li{margin-bottom:10px}
.sidecard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px;position:sticky;top:96px;margin-bottom:24px}
.sidecard h3{font-size:17px;margin-bottom:12px}
.sidecard p{font-size:14px;color:var(--muted)}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-grid>*{min-width:0}
.form{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:40px}
.field{margin-bottom:20px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;font-family:var(--fb);font-size:15px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--ink)}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:3px solid var(--gold);outline-offset:1px;border-color:var(--gold)}
.cinfo .card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px;margin-bottom:20px}
.cinfo h3{font-size:17px;margin-bottom:10px}
.cinfo p{font-size:14px;color:var(--muted);margin-bottom:8px}
.cinfo a{color:var(--ink)}

/* ---------- 关于 ---------- */
.timeline{list-style:none;margin:32px 0;padding:0;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 32px 32px}
.timeline li::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--gold)}
.timeline .yr{font-family:var(--fm);font-size:13px;color:var(--gold-deep)}
.timeline h3{margin:6px 0}
.timeline p{color:var(--muted);font-size:15px;margin:0}
.certwall{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:24px}
.certwall>*{min-width:0}
.certwall div{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;text-align:center;font-family:var(--fm);font-size:14px}
.certwall small{display:block;font-size:12px;color:var(--muted);margin-top:6px}

/* ---------- 杂项 ---------- */
.errpage{text-align:center;padding:96px 0}
.errpage .code{font-family:var(--fm);font-size:72px;color:var(--gold)}
.note-box{background:#FFFDF8;border:1px solid var(--gold);border-radius:14px;padding:20px 24px;font-size:14px;color:var(--muted);margin:24px 0}
.note-box b{color:var(--ink)}

@media (max-width:1100px){
  .lines{grid-template-columns:repeat(2,1fr)}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .facts{grid-template-columns:repeat(2,1fr)}
  .fgallery{grid-template-columns:repeat(2,1fr)}
  .certwall{grid-template-columns:repeat(2,1fr)}
  .bloglist{grid-template-columns:repeat(2,1fr)}
  .post{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:900px){
  .mainnav{display:none}
  .topbar .btn{display:none}
  .menubtn{display:block}
  .mnav{display:none;border-top:1px solid var(--line);background:var(--bg)}
  .mnav.open{display:block}
  .mnav ul{list-style:none;margin:0;padding:16px 24px 24px;display:flex;flex-direction:column;gap:4px}
  .mnav a{display:block;padding:12px 0;text-decoration:none;font-weight:500}
  .mnav .btn{display:inline-block;text-align:center;margin-top:8px}
  .hero-in{grid-template-columns:1fr;gap:40px}
  .hero{padding:64px 0 56px}
  .catlayout{grid-template-columns:1fr}
  .filters{position:static}
  .prod{grid-template-columns:1fr}
  .pside{position:static}
  .contact-grid{grid-template-columns:1fr}
  .trio{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .evbar{grid-template-columns:repeat(2,1fr)}
  .evbar div:nth-child(3){border-left:0}
  .evbar div{border-top:1px solid rgba(250,247,242,.14)}
  .evbar div:nth-child(-n+2){border-top:0}
  .factory{padding:40px 28px}
  .article{padding:32px 24px}
  .related{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .lines{grid-template-columns:1fr}
  .matrix{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .bloglist{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  section{padding:48px 0}
  .hero-cta .btn{width:100%;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none !important;animation:none !important}
}