:root{
  --iv-bg:#FAF7F4;--iv-surface:#F2EDE8;--iv-card:#FFFFFF;--iv-line:rgba(26,10,0,.10);
  --iv-ink:#1A0A00;--iv-muted:rgba(26,10,0,.52);
  --iv-crimson:#8B1A1A;--iv-gold:#6B4A00;
  --iv-grad:linear-gradient(135deg,#8B1A1A,#C62828);
  --iv-maxw:1160px;
  --iv-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --iv-serif:Georgia,"Noto Serif SC","STSong",serif;
  --iv-mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --iv-out:cubic-bezier(.23,1,.32,1);
}
*{box-sizing:border-box}
body.skin-ivory{margin:0;background:var(--iv-bg);color:var(--iv-ink);font-family:var(--iv-sans);font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased}
body.skin-ivory img{max-width:100%;height:auto;display:block}
body.skin-ivory a{color:inherit;text-decoration:none}
body.skin-ivory ul,body.skin-ivory ol{padding-left:1.2em;margin:0}
body.skin-ivory li{margin:.35em 0}
body.skin-ivory p{margin:0 0 1em}
body.skin-ivory h1,body.skin-ivory h2,body.skin-ivory h3{margin:0 0 .5em;font-weight:800;line-height:1.1;letter-spacing:-.025em;font-family:var(--iv-serif)}
body.skin-ivory h1{font-size:clamp(2.2rem,5vw,3.8rem)}
body.skin-ivory h2{font-size:clamp(1.4rem,2.8vw,2.1rem)}
body.skin-ivory h3{font-size:1.06rem;font-family:var(--iv-sans)}
body.skin-ivory .container{max-width:var(--iv-maxw);margin:0 auto;padding:0 28px}
body.skin-ivory .iv-eyebrow,.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.72rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--iv-crimson);margin-bottom:14px}
body.skin-ivory .iv-lead,.lead{font-size:1.08rem;color:var(--iv-muted);max-width:56ch}
body.skin-ivory .page-meta{font-family:var(--iv-mono);font-size:.77rem;color:var(--iv-muted);margin:12px 0 0}

/* 按钮 */
body.skin-ivory .iv-btn,.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;background:var(--iv-grad);color:#fff;font-weight:700;font-size:.94rem;border-radius:0;border:none;transition:opacity 180ms var(--iv-out),transform 180ms var(--iv-out)}
body.skin-ivory .iv-btn:hover,.btn:hover{opacity:.85;transform:translateY(-1px)}
body.skin-ivory .iv-btn:active,.btn:active{transform:scale(.97)}
body.skin-ivory .iv-btn--ghost,.btn.ghost{background:transparent;border:1px solid var(--iv-crimson);color:var(--iv-crimson)}
body.skin-ivory .iv-btn--ghost:hover,.btn.ghost:hover{background:rgba(139,26,26,.06)}

/* 顶导航：象牙白底，底部细线 */
body.skin-ivory .iv-nav{position:sticky;top:0;z-index:50;background:rgba(250,247,244,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--iv-line)}
body.skin-ivory .iv-nav-inner{display:flex;align-items:center;gap:32px;height:68px}
body.skin-ivory .iv-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.04rem;flex-shrink:0;color:var(--iv-ink);font-family:var(--iv-serif)}
body.skin-ivory .iv-mark{width:8px;height:8px;background:var(--iv-crimson);transform:rotate(45deg);flex-shrink:0}
body.skin-ivory .iv-menu-check{display:none}
body.skin-ivory .iv-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;margin-left:auto}
body.skin-ivory .iv-burger span{width:22px;height:1.5px;background:var(--iv-ink)}
body.skin-ivory .iv-menu{flex:1}
body.skin-ivory .iv-menu ul{list-style:none;display:flex;gap:2px;margin:0;padding:0}
body.skin-ivory .iv-menu a{position:relative;display:inline-block;padding:8px 11px;font-size:.9rem;font-weight:500;color:var(--iv-muted);transition:color 150ms}
body.skin-ivory .iv-menu a:hover,body.skin-ivory .iv-menu a[aria-current]{color:var(--iv-ink)}
body.skin-ivory .iv-menu a[aria-current]::after{content:"";position:absolute;bottom:4px;left:11px;right:11px;height:1px;background:var(--iv-crimson)}
body.skin-ivory .iv-nav-cta{flex-shrink:0;padding:9px 22px;background:var(--iv-ink);color:#FAF7F4;font-size:.86rem;font-weight:700;transition:opacity 150ms}
body.skin-ivory .iv-nav-cta:hover{opacity:.78}

/* Hero：纯文字超大标题，深色背景 */
body.skin-ivory .iv-hero{position:relative;min-height:500px;display:flex;align-items:center;overflow:hidden;background:var(--iv-ink)}
body.skin-ivory .iv-hero-bg{position:absolute;inset:0;z-index:0}
body.skin-ivory .iv-hero-img{width:100%;height:100%;object-fit:cover;object-position:center}
body.skin-ivory .iv-hero-overlay{position:absolute;inset:0;background:rgba(26,10,0,.82)}
body.skin-ivory .iv-hero-bg--plain{background:var(--iv-ink)}
body.skin-ivory .iv-hero-inner{position:relative;z-index:1;max-width:var(--iv-maxw);margin:0 auto;padding:clamp(80px,10vw,130px) 28px}
body.skin-ivory .iv-hero-inner h1{color:#FAF7F4;margin-bottom:.4em}
body.skin-ivory .iv-hero-inner .iv-eyebrow{color:rgba(139,26,26,.9)}
body.skin-ivory .iv-hero-inner .iv-lead{color:rgba(250,247,244,.65)}
body.skin-ivory .iv-hero-inner .page-meta{color:rgba(250,247,244,.4)}
body.skin-ivory .iv-hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}

/* section */
body.skin-ivory .section{padding:clamp(52px,6vw,88px) 0;border-top:1px solid var(--iv-line)}
body.skin-ivory .section:first-child{border-top:0}
body.skin-ivory .sec-head{max-width:60ch;margin-bottom:40px}
body.skin-ivory .sec-head.center{margin-inline:auto;text-align:center}

/* 卡片：无圆角，底部强调线 */
body.skin-ivory .grid{display:grid;gap:1px;background:var(--iv-line)}
body.skin-ivory .grid.cols-2{grid-template-columns:repeat(2,1fr)}
body.skin-ivory .grid.cols-3{grid-template-columns:repeat(3,1fr)}
body.skin-ivory .grid.cols-4{grid-template-columns:repeat(4,1fr)}
body.skin-ivory .card{background:var(--iv-card);padding:28px;position:relative;transition:transform 200ms var(--iv-out)}
body.skin-ivory .card::after{content:"";position:absolute;bottom:0;left:28px;right:28px;height:2px;background:transparent;transition:background 200ms}
body.skin-ivory .card:hover::after{background:var(--iv-crimson)}
body.skin-ivory .card:hover{transform:translateY(-2px)}
body.skin-ivory .card .ico{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;background:rgba(139,26,26,.09);font-size:1.3rem;margin-bottom:14px}
body.skin-ivory .card h3{margin-bottom:.3em;color:var(--iv-ink)}
body.skin-ivory .card p{color:var(--iv-muted);margin:0;font-size:.95rem}
body.skin-ivory .card-img{margin:-28px -28px 18px;overflow:hidden}
body.skin-ivory .card-img img{width:100%;aspect-ratio:16/10;object-fit:cover}
@media(max-width:820px){body.skin-ivory .grid.cols-3,body.skin-ivory .grid.cols-4{grid-template-columns:1fr 1fr}}
@media(max-width:560px){body.skin-ivory .grid{grid-template-columns:1fr!important;background:transparent;gap:0}}

/* stats */
body.skin-ivory .stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--iv-line)}
body.skin-ivory .stat{padding:32px 24px;text-align:center;border-right:1px solid var(--iv-line)}
body.skin-ivory .stat:last-child{border-right:0}
body.skin-ivory .stat .num{font-family:var(--iv-mono);font-variant-numeric:tabular-nums;font-size:clamp(2rem,3.5vw,2.8rem);font-weight:800;color:var(--iv-crimson)}
body.skin-ivory .stat .lbl{color:var(--iv-muted);font-size:.88rem;margin-top:6px}
@media(max-width:560px){body.skin-ivory .stats{grid-template-columns:1fr;border:none}body.skin-ivory .stat{border-right:none;border-bottom:1px solid var(--iv-line)}}

/* prose / split */
body.skin-ivory .prose{max-width:72ch}
body.skin-ivory .prose h2{margin-top:1.3em}
body.skin-ivory .prose p{color:rgba(26,10,0,.8)}
body.skin-ivory .prose strong{color:var(--iv-ink)}
body.skin-ivory .split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px);align-items:center}
body.skin-ivory .split.reverse .split-media{order:2}
body.skin-ivory .split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--iv-line)}
body.skin-ivory .split-body p{color:var(--iv-muted)}
body.skin-ivory .split-body ul{padding-left:1.1em;color:var(--iv-muted)}
body.skin-ivory .split-body li{margin:.5em 0}
@media(max-width:820px){body.skin-ivory .split{grid-template-columns:1fr}body.skin-ivory .split.reverse .split-media{order:0}}

/* steps */
body.skin-ivory .steps{display:grid;gap:0;border-left:2px solid var(--iv-line);margin-left:18px;counter-reset:step}
body.skin-ivory .steps.cols{grid-template-columns:1fr 1fr;border-left:none;margin-left:0;gap:16px}
body.skin-ivory .step{position:relative;padding:20px 24px 20px 36px;counter-increment:step}
body.skin-ivory .steps:not(.cols) .step::before{content:counter(step);position:absolute;left:-22px;top:20px;width:40px;height:40px;border-radius:0;background:var(--iv-ink);color:#FAF7F4;font-size:.8rem;font-weight:800;display:flex;align-items:center;justify-content:center}
body.skin-ivory .steps.cols .step{background:var(--iv-card);border:1px solid var(--iv-line);padding:24px}
body.skin-ivory .steps.cols .step::before{content:counter(step);display:inline-block;width:28px;height:28px;background:var(--iv-crimson);color:#fff;font-size:.78rem;font-weight:800;text-align:center;line-height:28px;margin-bottom:10px;position:static}
body.skin-ivory .step h3{margin:0 0 .3em;color:var(--iv-ink)}
body.skin-ivory .step p{margin:0;color:var(--iv-muted);font-size:.95rem}
@media(max-width:720px){body.skin-ivory .steps.cols{grid-template-columns:1fr}}

/* faq */
body.skin-ivory .faq{max-width:760px}
body.skin-ivory .faq.twocol{display:grid;grid-template-columns:1fr 1fr;gap:0 32px;max-width:none}
body.skin-ivory .faq details{border-bottom:1px solid var(--iv-line)}
body.skin-ivory .faq summary{cursor:pointer;font-weight:700;padding:18px 0;list-style:none;display:flex;justify-content:space-between;gap:16px;color:var(--iv-ink)}
body.skin-ivory .faq summary::-webkit-details-marker{display:none}
body.skin-ivory .faq summary::after{content:"+";color:var(--iv-crimson);flex-shrink:0;font-size:1.2rem;transition:transform 200ms var(--iv-out)}
body.skin-ivory .faq details[open] summary::after{transform:rotate(45deg)}
body.skin-ivory .faq details p{color:var(--iv-muted);padding-bottom:18px;margin:0}
@media(max-width:720px){body.skin-ivory .faq.twocol{grid-template-columns:1fr}}

/* gallery */
body.skin-ivory .gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--iv-line)}
body.skin-ivory .gallery.masonry{gap:6px;background:transparent}
body.skin-ivory .gallery figure{margin:0;position:relative;overflow:hidden}
body.skin-ivory .gallery img{width:100%;aspect-ratio:1/1;object-fit:cover;transition:transform 320ms var(--iv-out)}
body.skin-ivory .gallery figure:hover img{transform:scale(1.05)}
body.skin-ivory .gallery figcaption{position:absolute;left:0;bottom:0;right:0;padding:10px 12px;font-size:.78rem;color:#fff;background:linear-gradient(0deg,rgba(26,10,0,.80),transparent)}
@media(max-width:820px){body.skin-ivory .gallery{grid-template-columns:1fr 1fr}}
@media(max-width:520px){body.skin-ivory .gallery{grid-template-columns:1fr}}

/* cta */
body.skin-ivory .cta-band{background:var(--iv-ink);padding:clamp(36px,5vw,64px);text-align:center}
body.skin-ivory .cta-band h2{color:#FAF7F4;margin-bottom:.3em}
body.skin-ivory .cta-band .lead{color:rgba(250,247,244,.6);margin:0 auto 28px}
body.skin-ivory .cta-inline{border:1px solid var(--iv-line);padding:clamp(28px,4vw,52px);display:flex;gap:28px;align-items:center;flex-wrap:wrap}
body.skin-ivory .cta-inline .cta-body{flex:1}
body.skin-ivory .cta-inline h2{margin-bottom:.2em}
body.skin-ivory .cta-inline p{color:var(--iv-muted);margin:0}

/* footer */
body.skin-ivory .iv-footer{background:var(--iv-ink);color:rgba(250,247,244,.75);padding:60px 0 28px}
body.skin-ivory .iv-foot-grid{display:grid;grid-template-columns:2fr 1fr;gap:48px}
body.skin-ivory .iv-foot-brand p{color:rgba(250,247,244,.5);max-width:38ch;margin-top:10px;font-size:.93rem}
body.skin-ivory .iv-brand-mark{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.04rem;color:#FAF7F4;font-family:var(--iv-serif)}
body.skin-ivory .iv-foot-links{display:flex;flex-direction:column;gap:10px;align-items:flex-end}
body.skin-ivory .iv-foot-links a{color:rgba(250,247,244,.5);transition:color 150ms;font-size:.93rem}
body.skin-ivory .iv-foot-links a:hover{color:#FAF7F4}
body.skin-ivory .iv-foot-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(250,247,244,.1);display:flex;justify-content:space-between;color:rgba(250,247,244,.25);font-family:var(--iv-mono);font-size:.8rem}
@media(max-width:600px){body.skin-ivory .iv-foot-grid{grid-template-columns:1fr}body.skin-ivory .iv-foot-links{align-items:flex-start}}

/* 二级粘性锚点条（anchor nav） */
body.skin-ivory .iv-anchor-bar{position:sticky;top:68px;z-index:40;background:rgba(250,247,244,.96);border-bottom:1px solid var(--iv-line);padding:0;overflow-x:auto;white-space:nowrap}
body.skin-ivory .iv-anchor-bar ul{list-style:none;display:inline-flex;gap:0;margin:0;padding:0}
body.skin-ivory .iv-anchor-bar a{display:inline-block;padding:12px 18px;font-size:.83rem;font-weight:600;color:var(--iv-muted);border-bottom:2px solid transparent;transition:color 150ms,border-color 150ms}
body.skin-ivory .iv-anchor-bar a:hover,body.skin-ivory .iv-anchor-bar a.active{color:var(--iv-ink);border-bottom-color:var(--iv-crimson)}

/* 移动端导航 */
@media(max-width:900px){
  body.skin-ivory .iv-nav-inner{height:60px}
  body.skin-ivory .iv-burger{display:flex}
  body.skin-ivory .iv-menu{position:absolute;top:60px;left:0;right:0;background:rgba(250,247,244,.98);border-bottom:1px solid var(--iv-line);max-height:0;overflow:hidden;transition:max-height 240ms var(--iv-out)}
  body.skin-ivory .iv-menu-check:checked ~ .iv-menu{max-height:70vh}
  body.skin-ivory .iv-menu ul{flex-direction:column;padding:8px 28px 20px;gap:2px}
  body.skin-ivory .iv-nav-cta{display:none}
  body.skin-ivory .iv-anchor-bar{top:60px}
}

/* reveal & counter animations */
@media(prefers-reduced-motion:no-preference){
  body.js-reveal.fx-reveal .section .card{opacity:0;transform:translateY(14px)}
  body.js-reveal.fx-reveal .section.in .card{opacity:1;transform:none;transition:opacity 480ms var(--iv-out),transform 480ms var(--iv-out)}
  body.js-reveal.fx-reveal .section.in .card:nth-child(1){transition-delay:0ms}
  body.js-reveal.fx-reveal .section.in .card:nth-child(2){transition-delay:60ms}
  body.js-reveal.fx-reveal .section.in .card:nth-child(3){transition-delay:120ms}
  body.js-reveal.fx-reveal .section.in .card:nth-child(4){transition-delay:180ms}
}


/* ---- variants: shared layout (pipeline/lib/variants.js) ---- */
.sec-head.center{text-align:center}
.sec-head.center .lead{margin-left:auto;margin-right:auto}
/* features=list */
.feat-list{display:grid;gap:0;border-top:1px solid color-mix(in srgb,currentColor 16%,transparent)}
.feat-row{display:grid;grid-template-columns:72px 1fr;gap:22px;padding:26px 0;border-bottom:1px solid color-mix(in srgb,currentColor 16%,transparent);align-items:start}
.feat-row .feat-lead{font-size:1.8rem;line-height:1}
.feat-row .feat-dot{display:block;width:12px;height:12px;border-radius:50%;background:currentColor;margin-top:10px;opacity:.6}
.feat-row h3{margin:0 0 .35em}
.feat-row p{margin:0;opacity:.8}
/* features=bento */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;grid-auto-flow:dense}
.bento .card.span2{grid-column:span 2}
/* features=numbered */
.feat-num{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:28px 48px;counter-reset:fn}
.feat-num li{display:grid;grid-template-columns:56px 1fr;gap:16px;align-items:start}
.feat-num .n{font-size:1.6rem;font-weight:800;line-height:1;opacity:.35;font-variant-numeric:tabular-nums}
.feat-num h3{margin:0 0 .3em}
.feat-num p{margin:0;opacity:.8}
/* steps=timeline */
.timeline{list-style:none;margin:0;padding:0 0 0 34px;position:relative;max-width:720px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:color-mix(in srgb,currentColor 18%,transparent)}
.timeline .step{position:relative;padding:0 0 34px 18px;background:none;border:0;box-shadow:none}
.timeline .step:last-child{padding-bottom:0}
.timeline .step::before{content:"";position:absolute;left:-34px;top:8px;width:20px;height:20px;border-radius:50%;background:currentColor;opacity:.85}
.timeline .step::after{content:"";position:absolute;left:-28px;top:14px;width:8px;height:8px;border-radius:50%;background:#fff;opacity:.9}
.timeline .n{display:block;font-size:.8rem;letter-spacing:.12em;opacity:.5;margin-bottom:6px;font-variant-numeric:tabular-nums}
.timeline h3{margin:0 0 .3em}
.timeline p{margin:0;opacity:.8}
/* steps=row */
.steps-row{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:22px;position:relative}
.steps-row::before{content:"";position:absolute;left:0;right:0;top:17px;height:2px;background:color-mix(in srgb,currentColor 16%,transparent)}
.steps-row .step{position:relative;padding:54px 0 0;background:none;border:0;box-shadow:none;border-radius:0}
.steps-row .n{position:absolute;top:0;left:0;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.85rem;border:2px solid currentColor;font-variant-numeric:tabular-nums}
.steps-row h3{margin:0 0 .3em}
.steps-row p{margin:0;opacity:.8}
/* faq=twocol */
.faq.faq-cols{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;align-items:start;max-width:none}
/* faq=list */
.faq-list{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:28px 48px}
.faq-list .faq-item{padding:0 0 22px;border-bottom:1px solid color-mix(in srgb,currentColor 14%,transparent)}
.faq-list dt{font-weight:700;font-size:1.05rem;margin:0 0 .4em;display:flex;gap:12px;align-items:baseline}
.faq-list dt .n{font-size:.78rem;letter-spacing:.1em;opacity:.45;font-variant-numeric:tabular-nums}
.faq-list dd{margin:0;opacity:.82}
/* cta=split */
.cta-split{display:grid;grid-template-columns:1.4fr auto;gap:32px;align-items:center;padding:34px 38px;border:1px solid color-mix(in srgb,currentColor 22%,transparent)}
.cta-split h2{margin:0 0 .25em}
.cta-split .lead{margin:0}
/* cta=inline */
.cta-inline{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:22px 0;border-top:2px solid currentColor;border-bottom:2px solid currentColor}
.cta-inline h2{margin:0;font-size:clamp(1.2rem,2.4vw,1.7rem)}
/* content=columns */
.prose.prose-cols{column-count:2;column-gap:48px;max-width:none}
.prose.prose-cols>*{break-inside:avoid}
.prose.prose-cols h2,.prose.prose-cols h3{column-span:all}
/* content=sidebar */
.content-side{display:grid;grid-template-columns:minmax(220px,.8fr) 2fr;gap:48px;align-items:start}
.content-side .content-aside{position:sticky;top:90px}
.content-side .sec-head{text-align:left;margin:0}
/* gallery=masonry */
.gallery.gallery-masonry{display:block;column-count:3;column-gap:16px}
.gallery.gallery-masonry figure{break-inside:avoid;margin:0 0 16px}
/* gallery=strip */
.gallery.gallery-strip{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;grid-template-columns:none}
.gallery.gallery-strip figure{flex:0 0 min(70vw,420px);scroll-snap-align:start;margin:0}
/* stats=cards */
.stats.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}
.stats.stat-cards .stat{padding:26px 20px;border:1px solid color-mix(in srgb,currentColor 18%,transparent);text-align:center}
@media(max-width:860px){
  .bento{grid-template-columns:1fr 1fr}
  .bento .card.span2{grid-column:span 2}
  .feat-num,.faq.faq-cols,.faq-list,.content-side{grid-template-columns:1fr}
  .feat-row{grid-template-columns:48px 1fr;gap:14px}
  .steps-row{grid-auto-flow:row}
  .steps-row::before{display:none}
  .cta-split{grid-template-columns:1fr;padding:26px}
  .cta-inline{flex-direction:column;align-items:flex-start}
  .prose.prose-cols{column-count:1}
  .gallery.gallery-masonry{column-count:2}
  .content-side .content-aside{position:static}
}
@media(max-width:560px){.bento{grid-template-columns:1fr}.bento .card.span2{grid-column:auto}}


/* 滚动渐显：仅在 JS 就绪(js-reveal) + 允许动效时隐藏，无 JS 或 reduce-motion 时正常显示，防止内容看不见 */
@media (prefers-reduced-motion:no-preference){
  body.js-reveal.fx-reveal .section{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.6,.2,1),transform .7s cubic-bezier(.2,.6,.2,1)}
  body.js-reveal.fx-reveal .section.in{opacity:1;transform:none}
}
/* 图片 lightbox */
body.fx-lightbox .gallery img{cursor:zoom-in}
.lb-overlay{position:fixed;inset:0;background:rgba(8,10,14,.92);display:none;align-items:center;justify-content:center;z-index:200;padding:24px;cursor:zoom-out}
.lb-overlay.open{display:flex}
.lb-overlay img{max-width:92vw;max-height:92vh;border-radius:8px;box-shadow:0 24px 70px rgba(0,0,0,.5)}