:root {
  /* 赵宜主品牌色：女士玫粉（默认）、男士蓝（见 data-gender），配深空科技底色 */
  --brand:#EF5B8C; --brand-deep:#DE2F6E; --brand-soft:#F8C8D9; --brand-rgb:239,91,140; --brand-deep-rgb:222,47,110;
  --accent:#7FE3FF;
  --bg:#070914; --bg-2:#0D1124; --glass:rgba(20,24,46,.56); --glass-line:rgba(255,255,255,.09);
  --ink:#F4F1F6; --muted:#A39FB4; --faint:#6E6A82;
  --body:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --latin:"Avenir Next","Avenir","Helvetica Neue",Arial,sans-serif;
  --gutter:clamp(18px,5vw,72px);
  --radius:22px;
  color-scheme:dark;
}
:root[data-gender="men"]{--brand:#2E9BF0;--brand-deep:#0A6FD0;--brand-soft:#BFE0FA;--brand-rgb:46,155,240;--brand-deep-rgb:10,111,208}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{transition:opacity .6s;content:"";position:fixed;inset:0;z-index:-2;background:
  radial-gradient(60vw 60vw at 78% 18%,rgba(var(--brand-rgb),.20),transparent 60%),
  radial-gradient(50vw 50vw at 8% 70%,rgba(127,227,255,.10),transparent 62%),
  linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 55%,var(--bg) 100%)}
h1,h2,h3,p{margin:0}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0;padding:0}
a{color:inherit;text-decoration:none}
button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:8px}
::selection{background:var(--brand);color:#fff}
.skip-link{position:fixed;top:12px;left:12px;z-index:100;background:#fff;color:#000;padding:10px 16px;border-radius:8px;transform:translateY(-200%)}
.skip-link:focus{transform:none}
.wrap{max-width:1280px;margin:0 auto;padding-inline:var(--gutter)}

/* 3D 画布固定在内容背后；内容容器让出空白区域给画布交互 */
#stage{position:fixed;inset:0;width:100vw;height:100vh;height:100lvh;z-index:0;display:block;touch-action:pan-y;cursor:grab}
#stage.is-dragging{cursor:grabbing}
#stage.is-hover{cursor:pointer}
main,.site-footer{position:relative;z-index:1;pointer-events:none}
main a,main button,.section-head,.scene-card,.feature-card,.styles-copy,.spec-card,.size-block,.site-footer *{pointer-events:auto}
.section-head h2,.section-head p,.section-head .eyebrow{pointer-events:auto}

/* 头部 */
.site-header{position:fixed;top:0;left:0;right:0;z-index:20;padding-top:env(safe-area-inset-top,0px);background:linear-gradient(180deg,rgba(7,9,20,.82),rgba(7,9,20,0));backdrop-filter:blur(8px)}
.header-inner{max-width:1440px;margin:auto;height:72px;padding-inline:var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:20px}
.wordmark{display:flex;align-items:center;gap:12px}
.wordmark-mark{width:26px;height:26px;border-radius:50%;border:5px solid var(--brand);box-shadow:0 0 18px rgba(var(--brand-rgb),.7),inset 0 0 8px rgba(var(--brand-rgb),.6)}
.wordmark-text{display:flex;flex-direction:column;line-height:1.15}
.wordmark-text b{font-size:16px;letter-spacing:1px}
.wordmark-text small{font-family:var(--latin);font-size:9px;letter-spacing:2.6px;color:var(--muted)}
.main-nav{display:flex;gap:34px;font-size:13px;color:var(--muted)}
.main-nav a{position:relative;padding:8px 0;transition:color .2s}
.main-nav a:hover,.main-nav a.is-active{color:var(--ink)}
.main-nav a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;background:var(--brand);box-shadow:0 0 10px var(--brand)}
.chip-button{border:1px solid rgba(var(--brand-rgb),.5);border-radius:99px;padding:8px 18px;font-size:13px;background:rgba(var(--brand-rgb),.08);transition:background .2s}
.chip-button:hover{background:rgba(var(--brand-rgb),.22)}

/* 通用 */
.section{position:relative;padding-block:clamp(90px,14vh,150px)}
.eyebrow{display:flex;align-items:center;gap:12px;font-family:var(--latin);font-size:11px;font-weight:600;letter-spacing:3px;color:var(--brand)}
.eyebrow i{width:26px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}
.section-head{max-width:540px}
.section-head h2,.styles-copy h2{font-size:clamp(30px,4vw,52px);line-height:1.22;letter-spacing:-1px;margin-top:20px;font-weight:600}
.section-head>p:not(.eyebrow){color:var(--muted);margin-top:18px;font-size:15px;max-width:460px}
.button{display:inline-flex;align-items:center;gap:22px;min-height:50px;padding:0 26px;border-radius:99px;font-size:14px;font-weight:500;transition:transform .2s,box-shadow .2s,background .2s;white-space:nowrap}
.button:hover{transform:translateY(-2px)}
.button-primary{background:linear-gradient(120deg,var(--brand),var(--brand-deep));color:#fff;box-shadow:0 10px 30px rgba(var(--brand-deep-rgb),.38)}
.button-primary:hover{box-shadow:0 14px 40px rgba(var(--brand-deep-rgb),.55)}
.button-ghost{border:1px solid var(--glass-line);background:rgba(255,255,255,.04)}
.button-ghost:hover{background:rgba(255,255,255,.1)}
.text-link{display:inline-flex;gap:12px;align-items:center;font-size:13px;color:var(--brand-soft);border-bottom:1px solid rgba(248,200,217,.35);padding-bottom:4px;margin-top:28px}
.text-link:hover{color:#fff;border-color:#fff}

/* 首屏 */
.hero{min-height:100vh;min-height:100svh;display:flex;align-items:center;padding-top:110px}
.hero-grid{width:100%;position:relative}
.hero-copy{max-width:560px}
.hero h1 span{display:block}
.hero h1{font-size:clamp(40px,5.4vw,78px);line-height:1.16;letter-spacing:-2px;margin-top:26px;font-weight:600;background:linear-gradient(100deg,#fff 30%,var(--brand-soft) 70%,var(--brand));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--muted);font-size:16px;margin-top:24px;max-width:470px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{list-style:none;padding:0;margin:48px 0 0;display:flex;gap:clamp(22px,4vw,48px)}
.hero-stats li{display:flex;flex-direction:column}
.hero-stats b{font-family:var(--latin);font-size:30px;font-weight:600;line-height:1.1}
.hero-stats small{font-size:13px;margin-left:3px;color:var(--brand)}
.hero-stats span{font-size:12px;color:var(--faint);margin-top:4px}
.hero-hint{position:absolute;right:0;bottom:-70px;font-size:12px;color:var(--faint);display:flex;align-items:center;gap:10px;letter-spacing:1px}
.hint-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(127,227,255,.6);animation:ping 2s infinite}
@keyframes ping{70%{box-shadow:0 0 0 10px rgba(127,227,255,0)}100%{box-shadow:0 0 0 0 rgba(127,227,255,0)}}
.hero-fallback{display:none}
.no-webgl .hero-fallback{display:block;position:absolute;right:8vw;top:50%;width:min(34vw,420px);transform:translateY(-50%);z-index:0;opacity:.9}
.no-webgl .hero-hint{display:none}
.no-webgl #stage{display:none}

/* 3D 热点 */
.hotspots{position:fixed;inset:0;z-index:5;pointer-events:none}
.hotspot{position:absolute;left:0;top:0;pointer-events:auto;display:flex;align-items:center;gap:10px;transition:opacity .3s;will-change:transform}
.hotspot[data-hidden="true"]{opacity:0;pointer-events:none}
.hotspot-dot{width:14px;height:14px;border-radius:50%;background:rgba(127,227,255,.2);border:1.5px solid var(--accent);position:relative;flex:none;margin:-7px}
.hotspot-dot::after{content:"";position:absolute;inset:3px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.hotspot-label{font-size:12px;padding:5px 12px;border-radius:99px;background:rgba(7,9,20,.72);border:1px solid var(--glass-line);backdrop-filter:blur(6px);white-space:nowrap;margin-left:14px;transition:border-color .2s}
.hotspot.is-flip .hotspot-btn{flex-direction:row-reverse;transform:translateX(-100%)}
.hotspot.is-flip .hotspot-label{margin-left:0;margin-right:14px}
.hotspot:hover .hotspot-label,.hotspot[aria-expanded="true"] .hotspot-label{border-color:var(--accent)}
.hotspot-pop{position:absolute;left:24px;top:22px;width:240px;padding:14px 16px;border-radius:14px;background:rgba(12,15,32,.92);border:1px solid rgba(127,227,255,.35);font-size:13px;line-height:1.7;color:var(--muted);box-shadow:0 18px 40px rgba(0,0,0,.4)}
.hotspot-pop b{display:block;color:var(--ink);font-size:14px;margin-bottom:4px}
.hotspot-pop[hidden]{display:none}
.hotspot.is-layer .hotspot-dot{border-color:var(--brand)}
.hotspot.is-layer .hotspot-dot::after{background:var(--brand);box-shadow:0 0 10px var(--brand)}
.hotspot.is-layer .hotspot-label{font-size:13px}
.hotspot.is-layer .hotspot-label small{display:block;color:var(--muted);font-size:11px}

/* 生活场景 */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:56px}
.scene-card{border-radius:var(--radius);background:var(--glass);border:1px solid var(--glass-line);backdrop-filter:blur(14px);overflow:hidden;display:flex;flex-direction:column;transition:transform .35s,border-color .35s}
.scene-card:hover{transform:translateY(-6px);border-color:rgba(var(--brand-rgb),.45)}
.scene-art{position:relative;height:170px;overflow:hidden}
.scene-art svg{position:absolute;inset:auto 0 0 0;width:100%;height:100%}
.scene-art[data-tone="night"]{background:radial-gradient(circle at 78% 26%,rgba(255,255,255,.85) 0 7px,rgba(190,200,255,.18) 8px 26px,transparent 27px),linear-gradient(160deg,#141a3d,#090b1c)}
.scene-art[data-tone="day"]{background:radial-gradient(circle at 80% 30%,rgba(127,227,255,.45),transparent 40%),linear-gradient(160deg,#16334a,#0b1426)}
.scene-art[data-tone="dusk"]{background:radial-gradient(circle at 20% 80%,rgba(255,168,110,.5),transparent 45%),linear-gradient(160deg,#3a1d3c,#120b1f)}
.scene-art[data-tone="rose"]{background:radial-gradient(circle at 70% 70%,rgba(var(--brand-rgb),.55),transparent 50%),linear-gradient(160deg,#3a1430,#140a1a)}
.scene-time{position:absolute;top:14px;left:16px;font-family:var(--latin);font-size:12px;letter-spacing:2px;color:rgba(255,255,255,.75)}
.scene-metric{position:absolute;top:12px;right:14px;font-size:11px;padding:3px 10px;border-radius:99px;background:rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.14)}
.scene-body{padding:20px 20px 24px}
.scene-body h3{font-size:18px;font-weight:600}
.scene-body p{color:var(--muted);font-size:13.5px;margin-top:8px}
.scene-note{margin-top:14px;font-size:11px;color:var(--faint)}

/* 功能 */
.features .wrap{display:flex;flex-direction:column;align-items:flex-end}
.features .section-head{align-self:flex-end;text-align:left}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:56px;width:100%}
.feature-card{padding:24px 22px;border-radius:var(--radius);background:var(--glass);border:1px solid var(--glass-line);backdrop-filter:blur(14px);transition:border-color .3s,background .3s}
.feature-card:hover{border-color:rgba(127,227,255,.4);background:rgba(24,30,58,.7)}
.feature-icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(140deg,rgba(var(--brand-rgb),.25),rgba(127,227,255,.12));border:1px solid rgba(255,255,255,.1)}
.feature-icon svg{width:22px;height:22px;stroke:var(--ink);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.feature-card h3{font-size:16px;font-weight:600;margin-top:18px}
.feature-card p{font-size:13px;color:var(--muted);margin-top:8px}
.feature-card.is-ai{grid-column:span 2;background:linear-gradient(130deg,rgba(var(--brand-rgb),.2),rgba(127,227,255,.08) 70%),var(--glass)}

/* 拆解：粘性区 */
.inside{height:280vh;padding:0}
.inside-sticky{position:sticky;top:0;height:100vh;height:100svh;display:flex;align-items:center}
.inside-grid{width:100%}
.layer-list{list-style:none;padding:0;margin:34px 0 0;display:grid;gap:10px;max-width:400px}
.layer-list li{padding:14px 18px;border-radius:14px;border:1px solid var(--glass-line);background:rgba(13,17,36,.5);transition:border-color .3s,background .3s,opacity .3s;opacity:.5}
.layer-list li.is-on{opacity:1;border-color:rgba(var(--brand-rgb),.5);background:rgba(var(--brand-rgb),.1)}
.layer-list b{font-size:14px;font-weight:600;display:block}
.layer-list span{font-size:12.5px;color:var(--muted)}
.explode-progress{position:absolute;left:var(--gutter);right:var(--gutter);bottom:40px;height:2px;background:rgba(255,255,255,.08);border-radius:2px;overflow:hidden}
.explode-progress i{display:block;height:100%;width:100%;transform-origin:left;transform:scaleX(0);background:linear-gradient(90deg,var(--brand),var(--accent))}

/* 款式 */
.styles{min-height:100vh;display:flex;align-items:center}
.styles-grid{width:100%}
.styles-copy{max-width:460px;padding:34px;border-radius:28px;background:var(--glass);border:1px solid var(--glass-line);backdrop-filter:blur(16px)}
.gender-tabs{display:inline-flex;padding:4px;border-radius:99px;background:rgba(255,255,255,.05);border:1px solid var(--glass-line);margin-top:28px}
.gender-tabs button{padding:8px 26px;border-radius:99px;font-size:14px;color:var(--muted);transition:background .25s,color .25s}
.gender-tabs button[aria-selected="true"]{background:linear-gradient(120deg,var(--brand),var(--brand-deep));color:#fff}
.style-note{color:var(--muted);font-size:14px;margin-top:18px}
.swatches{display:flex;flex-wrap:wrap;gap:18px;margin-top:24px;padding-bottom:22px}
.swatch{width:40px;height:40px;border-radius:50%;position:relative;border:2px solid transparent;transition:transform .2s,border-color .2s}
.swatch::before{content:"";position:absolute;inset:4px;border-radius:50%;background:var(--c);box-shadow:inset -4px -6px 10px rgba(0,0,0,.35),inset 4px 5px 8px rgba(255,255,255,.45)}
.swatch>span{position:absolute;left:50%;top:calc(100% + 8px);transform:translateX(-50%);font-family:var(--latin);font-size:11px;color:var(--muted);white-space:nowrap}
.swatch[aria-checked="true"]>span{color:var(--ink)}
.swatch:hover{transform:scale(1.08)}
.swatch[aria-checked="true"]{border-color:var(--ink)}
.color-name{margin-top:14px;font-size:20px;font-weight:600;display:flex;align-items:baseline;gap:10px}
.color-name small{font-size:12px;color:var(--faint);font-weight:400}
.pending-note{margin-top:8px;font-size:12px;color:var(--faint)}

/* 参数 */
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:48px}
.spec-card{padding:22px;border-radius:var(--radius);background:var(--glass);border:1px solid var(--glass-line);backdrop-filter:blur(14px)}
.spec-card h3{font-size:13px;color:var(--brand);letter-spacing:2px;font-weight:600}
.spec-card dl{margin:14px 0 0;display:grid;gap:12px}
.spec-card dt{font-size:12px;color:var(--faint)}
.spec-card dd{margin:2px 0 0;font-size:14px}
.size-block{margin-top:22px;padding:22px;border-radius:var(--radius);background:var(--glass);border:1px solid var(--glass-line);backdrop-filter:blur(14px)}
.size-block h3{font-size:13px;color:var(--brand);letter-spacing:2px;font-weight:600}
.table-scroll{overflow-x:auto;margin-top:14px}
.size-table{border-collapse:collapse;width:100%;min-width:560px;font-size:13px;text-align:center}
.size-table th,.size-table td{padding:10px 6px;border-bottom:1px solid var(--glass-line)}
.size-table th{color:var(--faint);font-weight:400;text-align:left;white-space:nowrap}
.size-table td{font-family:var(--latin)}

/* 页脚 */
.site-footer{padding-block:60px calc(60px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--glass-line);background:rgba(7,9,20,.85)}
.footer-brand{font-size:14px}
.disclaimer{color:var(--faint);font-size:12px;margin-top:12px;max-width:760px}

/* 面板 */
.panel{position:fixed;inset:0;z-index:50;visibility:hidden}
.panel.is-open{visibility:visible}
.panel-scrim{position:absolute;inset:0;background:rgba(3,4,10,.55);opacity:0;transition:opacity .35s}
.panel.is-open .panel-scrim{opacity:1}
.panel-grip{display:none}
body.is-locked{overflow:hidden}
.tab-bar,.swipe-hint,.size-grid{display:none}
.size-grid div{padding:10px 6px;border-radius:12px;background:rgba(255,255,255,.04);text-align:center;font-size:12px;color:var(--muted)}
.size-grid b{display:block;color:var(--ink);font-size:14px}
.panel-body{overscroll-behavior:contain}
.panel-sheet{position:absolute;top:0;right:0;bottom:0;width:min(460px,100%);background:rgba(12,15,32,.96);border-left:1px solid var(--glass-line);backdrop-filter:blur(20px);transform:translateX(100%);transition:transform .45s cubic-bezier(.2,.8,.2,1);display:flex;flex-direction:column;padding-top:env(safe-area-inset-top,0px);outline:none}
.panel.is-open .panel-sheet{transform:none}
.panel-head{display:flex;justify-content:space-between;align-items:flex-start;padding:28px 28px 16px}
.panel-head h2{font-size:24px;margin-top:8px}
.panel-color{font-size:13px;color:var(--muted);margin-top:6px;display:flex;align-items:center;gap:8px}
.panel-color i{width:12px;height:12px;border-radius:50%;background:var(--c);display:inline-block}
.icon-button{width:40px;height:40px;border-radius:50%;border:1px solid var(--glass-line);font-size:22px;line-height:1}
.icon-button:hover{background:rgba(255,255,255,.08)}
.panel-tabs{display:flex;gap:6px;padding:0 28px 14px;border-bottom:1px solid var(--glass-line)}
.panel-tabs button{padding:7px 18px;border-radius:99px;font-size:13px;color:var(--muted)}
.panel-tabs button[aria-selected="true"]{background:rgba(var(--brand-rgb),.16);color:var(--ink);box-shadow:inset 0 0 0 1px rgba(var(--brand-rgb),.5)}
.panel-body{overflow-y:auto;padding:20px 28px calc(36px + env(safe-area-inset-bottom,0px));flex:1}
.panel-body h3{font-size:12px;letter-spacing:2px;color:var(--brand);margin:22px 0 10px;font-weight:600}
.panel-body h3:first-child{margin-top:0}
.panel-feature{display:flex;gap:14px;padding:12px 0;border-bottom:1px solid var(--glass-line)}
.panel-feature .feature-icon{width:36px;height:36px;border-radius:11px;flex:none}
.panel-feature .feature-icon svg{width:18px;height:18px}
.panel-feature b{font-size:14px;display:block}
.panel-feature span{font-size:12.5px;color:var(--muted)}
.panel-body dl{margin:0;display:grid;grid-template-columns:88px 1fr;gap:10px 14px;font-size:13.5px}
.panel-body dt{color:var(--faint)}
.panel-body dd{margin:0}
.panel-sizes{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.panel-sizes div{padding:8px;border-radius:10px;background:rgba(255,255,255,.04);text-align:center;font-size:12px;color:var(--muted)}
.panel-sizes b{display:block;color:var(--ink);font-size:14px}
.panel-foot{font-size:11.5px;color:var(--faint);margin-top:24px}
.noscript{position:relative;z-index:3;padding:120px 24px}

/* 响应式 */
@media (max-width:1080px){
  .scene-grid,.feature-grid,.spec-grid{grid-template-columns:repeat(2,1fr)}
  .main-nav{gap:22px}
}
/* 竖屏堆叠布局：戒指在上、文案在下（与 app.js isStacked 一致） */
@media (max-width:760px),(max-width:1080px) and (orientation:portrait){
  .hero{align-items:flex-end;padding-top:46vh;padding-top:46svh;padding-bottom:56px}
  .hero-hint{position:static;margin-top:28px}
  .inside-sticky{align-items:flex-end;padding-bottom:80px}
  .styles{align-items:flex-end;padding-top:52vh}
}
@media (max-width:760px){
  .main-nav{display:none}
  .header-inner{height:60px}
  .hero-stats b{font-size:24px}
  .no-webgl .hero-fallback{right:50%;top:22vh;width:60vw;transform:translate(50%,-50%)}
  .features .wrap{align-items:stretch}
  .features .section-head{align-self:flex-start}
  .layer-list{grid-template-columns:1fr 1fr;gap:8px}
  .section-head h2,.styles-copy h2{font-size:28px}
  .styles-copy{padding:22px 20px;max-width:none}
  .layer-list li{padding:10px 12px}
  .layer-list span{display:none}
  .inside .section-head>p:not(.eyebrow){display:none}
  .panel-sheet{top:auto;width:100%;max-height:82vh;border-left:0;border-top:1px solid var(--glass-line);border-radius:24px 24px 0 0;transform:translateY(100%)}
  .hotspot-label{font-size:11px;padding:4px 10px}
  .hotspot-pop{width:min(240px,calc(100vw - 40px))}

  /* 底部导航（手机） */
  .tab-bar{display:flex;position:fixed;z-index:30;left:12px;right:12px;bottom:calc(10px + env(safe-area-inset-bottom,0px));padding:5px;gap:2px;border-radius:99px;background:rgba(12,15,32,.82);border:1px solid var(--glass-line);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 10px 30px rgba(0,0,0,.35)}
  .tab-bar a{flex:1;text-align:center;font-size:12.5px;line-height:1;padding:11px 0;border-radius:99px;color:var(--muted);transition:background .25s,color .25s}
  .tab-bar a.is-active{background:rgba(var(--brand-rgb),.22);color:var(--ink)}
  .site-footer{padding-bottom:calc(110px + env(safe-area-inset-bottom,0px))}
  .chip-button{padding:7px 14px;font-size:12px}
  .wordmark-text small{letter-spacing:1.6px}

  /* 首屏 */
  .hero{padding-top:49vh;padding-top:49svh;padding-bottom:110px}
  .hero h1{font-size:clamp(32px,9.6vw,40px);letter-spacing:-1px;margin-top:16px}
  .lead{font-size:14.5px;margin-top:16px}
  .hero-actions{margin-top:24px}
  .hero-actions .button{min-height:46px;padding:0 22px;gap:16px}
  .hero-stats{margin-top:28px}
  .hero-hint{margin-top:18px}

  .section{padding-block:72px}
  .section-head>p:not(.eyebrow){font-size:14px}

  /* 生活场景：横向滑动卡片 */
  .scene-grid{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;margin:32px calc(-1 * var(--gutter)) 0;padding:4px var(--gutter) 8px;scroll-padding-inline:var(--gutter);pointer-events:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .scene-grid::-webkit-scrollbar{display:none}
  .scene-card{flex:0 0 78%;scroll-snap-align:start}
  .scene-card:hover{transform:none}
  .scene-art{height:140px}
  .swipe-hint{display:block;margin-top:10px;font-size:11.5px;color:var(--faint);text-align:right}

  /* 功能：两列紧凑卡片 */
  .feature-grid{grid-template-columns:1fr 1fr;gap:10px;margin-top:32px}
  .feature-card{padding:16px 14px;border-radius:16px}
  .feature-card h3{font-size:14.5px;margin-top:12px}
  .feature-card p{font-size:12px;line-height:1.6}
  .feature-icon{width:36px;height:36px;border-radius:11px}
  .feature-icon svg{width:18px;height:18px}
  .feature-card.is-ai{grid-column:span 2}

  /* 拆解 */
  .inside{height:240vh}
  .inside-sticky{padding-bottom:calc(84px + env(safe-area-inset-bottom,0px))}
  .inside .section-head h2{font-size:26px;margin-top:12px}
  .layer-list{margin-top:18px}
  .explode-progress{bottom:calc(72px + env(safe-area-inset-bottom,0px))}

  /* 款式 */
  .styles{padding-top:36vh;padding-top:36svh;padding-bottom:96px}
  .style-note{font-size:13px;margin-top:12px}
  .swatches{margin-top:18px}
  .styles-copy h2{font-size:26px;margin-top:14px}
  .gender-tabs{margin-top:18px}
  .swatches{gap:0;justify-content:space-between;max-width:300px}
  .swatch{width:46px;height:46px}

  /* 参数 */
  .spec-grid{grid-template-columns:1fr 1fr;gap:10px;margin-top:28px}
  .spec-card{padding:16px 14px;border-radius:16px}
  .spec-card dl{gap:10px}
  .spec-card dd{font-size:13px}
  .spec-card:last-child{grid-column:span 2}
  .size-block{padding:16px 14px;border-radius:16px}
  .table-scroll{display:none}
  .size-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:12px}

  /* 面板：底部弹层 */
  .panel-sheet{max-height:86vh;max-height:86svh}
  .panel-grip{display:block;width:40px;height:4px;border-radius:4px;background:rgba(255,255,255,.22);margin:10px auto 0}
  .panel-head{padding:14px 20px 12px}
  .panel-tabs{padding:0 20px 12px}
  .panel-body{padding:16px 20px calc(28px + env(safe-area-inset-bottom,0px))}
  .panel-body dl{grid-template-columns:76px 1fr}
}
@media (max-width:760px) and (max-height:720px){
  .hero{padding-top:42vh;padding-top:42svh;padding-bottom:84px}
  .hero-actions{margin-top:18px}
  .hero h1{font-size:32px}
  .lead{font-size:13.5px;line-height:1.65}
  .hero-stats{margin-top:20px}
  .hero-stats b{font-size:21px}
  .hero-hint{display:none}
}
@media (max-width:360px){
  .feature-grid,.spec-grid{grid-template-columns:1fr}
  .feature-card.is-ai,.spec-card:last-child{grid-column:auto}
  .tab-bar a{font-size:11.5px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms!important;animation:none!important}
}