.ps-page{--ps-ice:#93d9f5;--ps-snow:#eaf2ff;--ps-mist:#9fb2cc;--ps-line:rgba(160,190,230,.18);max-width:1160px;margin:auto;padding:66px 28px 40px;color:var(--ps-mist);font-family:Manrope,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8}
.ps-page h1,.ps-page h2,.ps-page h3{color:var(--ps-snow);line-height:1.3;text-wrap:balance}
.ps-page h1{font-family:Unbounded,"PingFang SC","Microsoft YaHei",sans-serif;font-size:clamp(2.7rem,7vw,5.5rem);letter-spacing:-.065em;margin:20px 0 26px}
.ps-page h2{font-size:clamp(1.55rem,3.3vw,2.3rem);letter-spacing:-.035em;margin:12px 0 28px}
.ps-page h3{font-size:1.05rem;margin:0 0 13px}
.ps-page p{margin:0 0 20px}
.ps-page .ps-kicker{font-family:"JetBrains Mono",Consolas,monospace;font-size:.72rem;letter-spacing:.16em;color:var(--ps-ice);line-height:1.6}
.ps-kicker span{margin:0 12px;color:#4de3c1}
.ps-name-zh{display:block;font-family:Manrope,"PingFang SC","Microsoft YaHei",sans-serif;font-size:.33em;letter-spacing:.22em;font-weight:500;margin-top:15px;color:var(--ps-ice)}
.ps-page .ps-lead{font-size:clamp(1.35rem,3.1vw,2rem);line-height:1.55;color:var(--ps-snow);text-wrap:balance}
.ps-summary{max-width:660px;font-size:1.03rem}
.ps-actions{display:flex;align-items:center;gap:28px;flex-wrap:wrap;margin:34px 0 20px}
.ps-page a{touch-action:manipulation}
.ps-page a:focus-visible{outline:2px solid var(--ps-ice);outline-offset:5px;border-radius:4px}
.ps-page a:active{opacity:.8}
.ps-primary{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:50px;padding:10px 22px;border:1px solid var(--ps-ice);border-radius:7px;background:var(--ps-ice);color:#081522;text-decoration:none;font-weight:750;line-height:1.5;transition:background .18s,color .18s}
.ps-primary:hover{background:#c5ecfc;border-color:#c5ecfc}
.ps-text-link{display:inline-flex;align-items:center;gap:12px;min-height:44px;color:var(--ps-ice);text-decoration:underline;text-underline-offset:7px;text-decoration-color:rgba(147,217,245,.4)}
.ps-text-link:hover{text-decoration-color:var(--ps-ice);color:var(--ps-snow)}
.ps-page .ps-note{font-size:.8rem;line-height:1.8;color:var(--ps-mist)}
.ps-page figure{margin:0;min-width:0}
.ps-page img{display:block;max-width:100%;width:100%;height:auto}
.ps-showcase{margin-top:42px!important;border:1px solid var(--ps-line);border-radius:12px;overflow:hidden;background:#0a1220;box-shadow:0 18px 75px rgba(0,0,0,.2)}
.ps-showcase figcaption{padding:13px 20px;font-size:.76rem;color:var(--ps-mist);border-top:1px solid var(--ps-line)}
.ps-section{margin-top:94px;padding-top:50px;border-top:1px solid var(--ps-line)}
.ps-section-heading{max-width:720px}
.ps-control-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:35px;margin-top:36px}
.ps-control-grid article{padding-left:20px;border-left:2px solid rgba(147,217,245,.28)}
.ps-control-grid article p{font-size:.91rem}
.ps-workbench{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:65px;align-items:start}
.ps-interface-copy{padding-top:15px}
.ps-ui{padding:20px;border:1px solid var(--ps-line);border-radius:12px;background:#0a1220}
.ps-ui img{border-radius:5px}
.ps-materials{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:65px;align-items:center}
.ps-materials figure{border:1px solid var(--ps-line);border-radius:12px;overflow:hidden;background:#0a1220}
.ps-material-list{list-style:none;margin:24px 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;font-size:.88rem}
.ps-material-list li:before{content:"·";color:var(--ps-ice);margin-right:10px}
.ps-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 44px;margin:0;padding:0;border:0;font-variant-numeric:tabular-nums}
.ps-facts>div{display:grid;grid-template-columns:100px minmax(0,1fr);gap:20px;padding:23px 0;border-bottom:1px solid var(--ps-line)}
.ps-facts dt{font-size:.79rem;color:var(--ps-ice);padding-top:3px}
.ps-facts dd{margin:0;color:var(--ps-snow);font-size:.92rem}
.ps-facts small{display:block;margin-top:6px;font-size:.76rem;line-height:1.8;color:var(--ps-mist)}
.ps-decision-list{display:block;margin:30px 0;padding:0;border:0}.ps-decision-list>div{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:18px 36px;padding:20px 0;border-bottom:1px solid var(--ps-line)}.ps-decision-list dt{color:var(--ps-snow);font-size:.93rem;font-weight:650}.ps-decision-list dd{margin:0;font-size:.91rem;color:var(--ps-mist)}.ps-first-exercise{max-width:820px;margin-top:38px}.ps-decision-sources{display:flex;flex-wrap:wrap;gap:6px 30px;font-size:.85rem}.ps-decision{scroll-margin-top:24px}
.ps-get{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:65px;align-items:center;padding-bottom:30px}
.ps-get-links{display:flex;flex-direction:column;align-items:flex-start;gap:18px}
@media(min-width:1000px){.ps-intro{max-width:810px}.ps-hero{position:relative}.ps-hero:before{content:"";position:absolute;z-index:-1;inset:-100px -40px 10% 35%;background:radial-gradient(ellipse at 70% 25%,rgba(106,166,255,.08),transparent 68%);pointer-events:none}}
@media(max-width:760px){.ps-page{padding:42px 22px 20px}.ps-section{margin-top:60px;padding-top:34px}.ps-control-grid{grid-template-columns:1fr;gap:24px}.ps-control-grid article p{margin-bottom:0}.ps-workbench,.ps-materials,.ps-get{grid-template-columns:1fr;gap:28px}.ps-interface-copy{padding-top:0}.ps-materials figure{order:2}.ps-facts{grid-template-columns:1fr}.ps-showcase{margin-top:30px!important}.ps-ui{padding:12px}.ps-actions{gap:10px 22px;margin-top:25px}.ps-get-links{gap:10px}.ps-get-links .ps-primary{width:100%;box-sizing:border-box}}
@media(max-width:400px){.ps-page{padding-inline:18px}.ps-page h1{font-size:2.55rem}.ps-facts>div{grid-template-columns:78px minmax(0,1fr);gap:14px}.ps-material-list{grid-template-columns:1fr}.ps-kicker{letter-spacing:.1em!important}.ps-showcase figcaption{padding:12px 14px}}
@media(prefers-reduced-motion:reduce){.ps-primary{transition:none}}
@media(max-width:760px){.ps-decision-list>div{grid-template-columns:1fr;gap:10px;padding:18px 20px;margin:0 0 12px;border:1px solid var(--ps-line);border-radius:8px;background:#0a1220}.ps-decision-sources{flex-direction:column;align-items:flex-start;gap:4px}.ps-decision-sources a{display:block;padding:8px 0}.ps-first-exercise{margin-top:30px}}