/* Hallmark · macrostructure: Manifesto · H2 split knobs: ratio=7/5, proof=local game photography, divider=ink rule
 * theme: custom · vibe: 都市冒险总谱、深绿地图、金色章节线 · axes: light / geometric-sans / warm
 * nav: N3 fixed compact · footer: Ft8 editorial index · enrichment: locally processed source photography · studied: no · context: explicit
 * pre-emit critique: P5 H5 E5 S5 R5 V5 · contrast: pass · slop: pass · honest: pass · tokens: pass · responsive: pass
 */
@import url("../../tokens.css");
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 1rem);overflow-x:clip;background:var(--paper)}body{min-width:20rem;margin:0;overflow-x:clip;background:var(--paper);color:var(--ink);font-family:var(--font);line-height:1.7;text-rendering:optimizeLegibility}body.is-locked{overflow:hidden}img,svg,video{display:block;max-width:100%}img{height:auto}a{color:inherit;text-underline-offset:.2em}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}h1,h2,h3{margin:0;line-height:1.16;overflow-wrap:anywhere}p{max-width:68ch}:focus-visible{outline:3px solid var(--secondary);outline-offset:3px}::selection{background:var(--highlight);color:var(--ink)}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link{position:fixed;z-index:300;top:.5rem;left:.5rem;transform:translateY(-150%);padding:.5rem 1rem;background:var(--ink);color:var(--paper)}.skip-link:focus{transform:none}.site-header{position:fixed;inset:0 0 auto;z-index:100;min-height:var(--nav-h);border-bottom:1px solid var(--rule);background:color-mix(in srgb,var(--paper) 95%,transparent);backdrop-filter:blur(10px)}.nav-shell{width:min(100%,var(--content));min-height:var(--nav-h);margin:auto;padding:0 var(--space-5);display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:var(--space-5)}.brand{display:flex;align-items:center;gap:.625rem;font-weight:800;text-decoration:none;min-width:0}.brand>span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.brand-mark{flex:none;width:2.75rem;height:2.75rem;overflow:hidden;border:2px solid var(--ink);background:var(--surface)}.brand-mark img{width:100%;height:100%;object-fit:cover;object-position:center 25%}.brand-mark-text{display:grid;place-items:center;background:var(--highlight);font-size:.68rem;letter-spacing:.06em}.primary-nav{display:flex;gap:.25rem}.primary-nav a{padding:.55rem .75rem;text-decoration:none;font-size:.9rem;font-weight:600;border-bottom:2px solid transparent}.primary-nav a:hover,.primary-nav a[aria-current=page]{border-color:var(--accent);color:var(--accent)}.nav-download,.mobile-cta a{padding:.65rem 1rem;background:var(--accent);color:#fff;text-decoration:none;font-weight:800;border:2px solid var(--accent)}.nav-download:hover{background:var(--ink);border-color:var(--ink)}.menu-button{display:none;width:2.75rem;height:2.75rem;padding:.55rem;border:1px solid var(--rule);background:var(--surface)}.menu-button>span:not(.visually-hidden){display:block;height:2px;margin:.25rem;background:var(--ink)}main{padding-top:var(--nav-h)}.hero{position:relative;min-height:min(52rem,calc(100svh - var(--nav-h)));display:grid;overflow:hidden;background:var(--ink);color:#fff}.hero-media,.hero-overlay{position:absolute;inset:0}.hero-media{background:linear-gradient(135deg,color-mix(in srgb,var(--secondary) 45%,var(--ink)),var(--ink))}.hero-image{width:100%;height:100%;object-fit:cover}.hero-overlay{background:linear-gradient(90deg,color-mix(in srgb,var(--ink) 88%,transparent) 0%,color-mix(in srgb,var(--ink) 64%,transparent) 48%,color-mix(in srgb,var(--ink) 28%,transparent) 100%)}.hero-content{position:relative;z-index:2;width:min(100%,var(--content));margin:auto;padding:clamp(5rem,10vw,8rem) var(--space-5) clamp(6rem,11vw,9rem)}.promo,.eyebrow{margin:0 0 var(--space-3);font-size:.76rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.promo{display:inline-block;padding:.35rem .6rem;background:var(--highlight);color:var(--ink)}.game-logo{width:min(21rem,70vw);max-height:6rem;object-fit:contain;object-position:left center;margin:var(--space-5) 0}.hero h1{max-width:14ch;font-size:clamp(2.25rem,6vw,4.6rem);font-weight:800;letter-spacing:-.04em}.hero h1 small{display:block;margin-top:.75rem;font-size:clamp(.85rem,1.4vw,1.15rem);font-weight:500;letter-spacing:.04em}.hero-copy{max-width:42rem;margin:var(--space-5) 0;font-size:clamp(1rem,2vw,1.25rem)}.tag-row{display:flex;flex-wrap:wrap;gap:.5rem;margin:1rem 0 1.5rem}.tag-row span{padding:.35rem .65rem;border:1px solid rgba(255,255,255,.45);background:rgba(0,0,0,.2);font-size:.82rem}.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem}.button{display:inline-flex;min-height:3rem;align-items:center;justify-content:center;padding:.75rem 1.25rem;border:2px solid transparent;text-decoration:none;font-weight:800;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease)}.button:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.button:active{transform:translateY(1px)}.button-primary{position:relative;overflow:hidden;background:var(--accent);color:#fff;border-color:var(--accent)}.button-primary:hover{background:color-mix(in srgb,var(--accent) 82%,#000)}.button-secondary{background:var(--surface);color:var(--ink);border-color:var(--ink)}.hero .button-secondary{background:transparent;color:#fff;border-color:#fff}.shimmer::after{content:"";position:absolute;inset:-80% auto -80% -30%;width:20%;transform:rotate(18deg);background:rgba(255,255,255,.5);animation:shine 4s ease-in-out infinite}@keyframes shine{0%,70%{left:-30%}100%{left:130%}}.hero-metrics{max-width:54rem;margin:2rem 0 0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid rgba(255,255,255,.35)}.hero-metrics div{padding:1rem .8rem 0 0}.hero-metrics dt{font-size:.72rem;opacity:.75}.hero-metrics dd{margin:.3rem 0 0;font-weight:700;font-size:.9rem}.dialog-box{position:absolute;right:var(--space-5);bottom:var(--space-5);width:min(30rem,calc(100% - 2.5rem));padding:1rem 1.25rem;border:2px solid rgba(255,255,255,.7);background:color-mix(in srgb,var(--ink) 88%,transparent)}.dialog-box span{font-size:.72rem;color:var(--highlight);font-weight:800}.dialog-box p{margin:.25rem 0}.dialog-box a{font-size:.82rem;color:var(--highlight)}.hero-art{height:100%;position:relative;overflow:hidden}.hero-art span{position:absolute;border:1px solid color-mix(in srgb,var(--highlight) 50%,transparent);border-radius:50%}.hero-art span:nth-child(1){width:34rem;height:34rem;right:8%;top:5%}.hero-art span:nth-child(2){width:22rem;height:22rem;right:22%;top:28%;background:color-mix(in srgb,var(--accent) 30%,transparent)}.hero-art span:nth-child(3){width:10rem;height:10rem;right:12%;bottom:8%;background:var(--highlight)}.info-strip{width:min(100%,var(--content));margin:-1.5rem auto 0;position:relative;z-index:3;padding:0 var(--space-5);display:grid;grid-template-columns:repeat(auto-fit,minmax(11rem,1fr));gap:1px;background:var(--ink)}.info-item{min-height:7rem;padding:1rem;background:var(--surface)}.info-item span{display:block;color:var(--muted);font-size:.75rem}.info-item strong{display:block;margin-top:.5rem;line-height:1.35}.section{width:min(100%,var(--content));margin-inline:auto;padding:var(--space-20) var(--space-5)}.section-heading{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:var(--space-8);align-items:end;margin-bottom:var(--space-10);border-bottom:2px solid var(--ink);padding-bottom:var(--space-5)}.section-heading .eyebrow{color:var(--accent)}.section-heading h2{font-size:clamp(1.8rem,4vw,3rem);grid-column:1}.section-heading>p:last-child{grid-column:2;grid-row:1/3;margin:0;color:var(--muted)}.section-heading.with-link>div{grid-column:1}.section-heading.with-link>a{grid-column:2;justify-self:end;font-weight:700}.story-copy{width:min(100%,var(--reading));margin:auto;font-size:clamp(1.05rem,2vw,1.2rem)}.story-copy p{margin:0 0 1.5rem}.feature-grid,.fit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-5)}.feature-card,.fit-grid article{position:relative;min-height:13rem;padding:var(--space-6);border:1px solid var(--rule);background:var(--surface);transition:transform .18s var(--ease),box-shadow .18s var(--ease)}.feature-card:hover,.fit-grid article:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}.feature-index{font-variant-numeric:tabular-nums;color:var(--accent);font-weight:800}.feature-card h3,.fit-grid h3{margin:2rem 0 .5rem;font-size:1.35rem}.feature-card p,.fit-grid p{margin:0;color:var(--muted)}.gallery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-4)}.gallery-card{padding:0;border:1px solid var(--rule);background:var(--surface);color:var(--ink);text-align:left;cursor:zoom-in;overflow:hidden}.gallery-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .25s var(--ease),filter .25s var(--ease)}.gallery-card span{display:block;padding:.75rem 1rem;font-size:.82rem}.gallery-card:hover img{transform:scale(1.025);filter:saturate(1.06)}.gallery-card[hidden]{display:none}.download-panel{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:var(--space-6);background:var(--ink);color:#fff;padding-block:var(--space-12)}.download-panel h2{font-size:clamp(1.8rem,4vw,3rem)}.download-panel p{color:rgba(255,255,255,.75)}.download-panel .text-link{grid-column:2;text-align:center;font-size:.82rem}.release-line{list-style:none;margin:0;padding:0;border-left:3px solid var(--accent)}.release-line li{margin-left:1.25rem;padding:0 0 1rem 1rem;position:relative}.release-line li::before{content:"";position:absolute;left:-1.5rem;top:.5rem;width:.75rem;height:.75rem;background:var(--highlight);border:2px solid var(--ink)}.release-line time{display:block;color:var(--muted);font-size:.82rem}.release-line strong{font-size:1.3rem}.accordion-list{border-top:1px solid var(--ink)}.accordion{border-bottom:1px solid var(--rule);background:var(--surface)}.accordion summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1.1rem 1rem;font-weight:700;cursor:pointer}.accordion summary::-webkit-details-marker{display:none}.accordion summary span::before{content:"+";font-size:1.4rem}.accordion[open] summary span::before{content:"−"}.accordion-body{padding:0 1rem 1rem}.accordion-body p{margin:0;color:var(--muted)}.final-cta{width:min(calc(100% - 2.5rem),var(--content));margin:var(--space-12) auto;min-height:18rem;padding:var(--space-10);display:grid;grid-template-columns:1fr auto;align-items:center;gap:var(--space-5);background:linear-gradient(120deg,var(--secondary),var(--ink));color:#fff}.final-cta h2{font-size:clamp(2rem,4vw,3.5rem)}.final-cta small{grid-column:1/-1;opacity:.7}.site-footer{padding:var(--space-16) var(--space-5) 6rem;border-top:1px solid var(--rule);background:color-mix(in srgb,var(--ink) 96%,var(--secondary));color:#fff}.footer-grid{width:min(100%,var(--content));margin:auto;display:grid;grid-template-columns:2fr 1fr 2fr;gap:var(--space-10)}.footer-grid h2{font-size:.9rem;color:var(--highlight)}.footer-grid ul{padding:0;list-style:none;columns:2}.footer-grid li{margin:.45rem 0}.footer-grid a:hover{color:var(--highlight)}.footer-brand{font-size:1.4rem;font-weight:800;text-decoration:none}.footer-grid p,.legal{color:rgba(255,255,255,.7)}.legal{width:min(100%,var(--content));margin:var(--space-10) auto 0;padding-top:var(--space-5);border-top:1px solid rgba(255,255,255,.2);font-size:.75rem}.legal p{margin:.25rem 0}.mobile-cta{display:none}.back-top{position:fixed;right:1rem;bottom:1rem;z-index:80;padding:.6rem .8rem;border:1px solid var(--rule);background:var(--surface);color:var(--ink);opacity:0;pointer-events:none;transition:opacity .2s}.back-top.is-visible{opacity:1;pointer-events:auto}.page-hero{padding:var(--space-16) var(--space-5);background:linear-gradient(120deg,var(--ink),color-mix(in srgb,var(--ink) 72%,var(--secondary)));color:#fff}.page-hero-inner{width:min(100%,var(--content));margin:auto}.page-hero h1{max-width:18ch;font-size:clamp(2.2rem,6vw,4.5rem)}.page-hero p:last-child{font-size:1.1rem;color:rgba(255,255,255,.78)}.crumb{display:flex;gap:.5rem;margin-bottom:var(--space-10);font-size:.8rem;color:rgba(255,255,255,.7)}.filter-tabs{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:var(--space-8)}.filter-tabs button{padding:.6rem 1rem;border:1px solid var(--ink);background:var(--surface);cursor:pointer}.filter-tabs button[aria-selected=true]{background:var(--ink);color:var(--paper)}.filter-tabs button:disabled{opacity:.35;cursor:not-allowed}.gallery-full{grid-template-columns:repeat(4,minmax(0,1fr))}.gallery-brand-panel{grid-column:1/-1;min-height:22rem;padding:var(--space-10);display:grid;place-content:center;text-align:center;background:linear-gradient(135deg,var(--secondary),var(--ink));color:#fff}.gallery-brand-panel span{width:8rem;height:8rem;margin:auto;border:2px solid var(--highlight);border-radius:50%}.lightbox{position:fixed;inset:0;z-index:250;padding:4rem;display:grid;grid-template-columns:auto 1fr auto;align-items:center;background:rgba(12,10,15,.94);color:#fff}.lightbox[hidden]{display:none}.lightbox figure{margin:0;display:grid;justify-items:center}.lightbox img{max-height:78vh;object-fit:contain}.lightbox figcaption{margin-top:.75rem}.lightbox button{padding:.65rem;border:1px solid rgba(255,255,255,.4);background:#17131b;color:#fff}.lightbox-close{position:absolute;right:1rem;top:1rem}.platform-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-5)}.platform-card{position:relative;padding:var(--space-8);border:1px solid var(--rule);background:var(--surface)}.platform-code{display:block;margin-bottom:2.5rem;color:var(--accent);font-weight:800;letter-spacing:.12em}.platform-card h2{font-size:2rem}.recommended{position:absolute;right:1rem;top:1rem;padding:.25rem .5rem;background:var(--highlight);font-size:.7rem;font-weight:800}.install-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-5)}.install-steps li{padding:var(--space-6);border-top:4px solid var(--accent);background:var(--surface)}.install-steps>li>span{font-size:2rem;font-weight:800;color:var(--accent)}.notice{padding-block:var(--space-8);border-left:5px solid var(--highlight);background:color-mix(in srgb,var(--highlight) 18%,var(--paper))}.requirements-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-5)}.requirements-card{padding:var(--space-6);border:1px solid var(--rule);background:var(--surface)}.requirements-card ul{padding-left:1.1rem}.guide-layout{display:grid;grid-template-columns:16rem minmax(0,1fr);gap:var(--space-10);align-items:start}.guide-toc{position:sticky;top:calc(var(--nav-h) + 1rem);padding:var(--space-5);border:1px solid var(--rule);background:var(--surface)}.guide-toc nav{display:grid;margin-bottom:1rem}.guide-toc nav a{display:grid;grid-template-columns:2rem 1fr;gap:.5rem;padding:.65rem 0;border-bottom:1px solid var(--rule);text-decoration:none}.guide-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-4);margin-bottom:var(--space-12)}.guide-card{padding:var(--space-5);border:1px solid var(--rule);background:var(--surface);text-decoration:none}.guide-card>span{color:var(--accent);font-weight:800}.guide-card h2{margin:2rem 0 .5rem;font-size:1.35rem}.guide-card p{color:var(--muted)}.guide-card strong{color:var(--accent)}.guide-article{scroll-margin-top:calc(var(--nav-h) + 1rem);padding:var(--space-10) 0;border-top:2px solid var(--ink)}.guide-article h2{font-size:clamp(1.7rem,4vw,2.6rem)}.guide-article>ol{list-style:none;padding:0}.guide-article>ol li{display:grid;grid-template-columns:2rem 1fr;gap:1rem;padding:.75rem 0;border-bottom:1px solid var(--rule)}.guide-article li span{font-weight:800;color:var(--accent)}.guide-article li p{margin:0}.long-article{display:grid;grid-template-columns:16rem minmax(0,var(--reading));justify-content:center;gap:var(--space-12);align-items:start}.long-article>aside{position:sticky;top:calc(var(--nav-h) + 1rem);padding:1rem;border-left:4px solid var(--accent)}.long-article>aside h2{font-size:1rem}.long-article>aside ol{padding-left:1.25rem}.article-body .lead{font-size:1.25rem;color:var(--muted)}.article-body section{padding:var(--space-8) 0;border-top:1px solid var(--rule)}.article-body h2{font-size:1.75rem}.article-actions{display:flex;gap:.75rem;flex-wrap:wrap}
/* Macrostructure-specific composition */
.layout-marquee .hero-content{padding-top:9rem}.layout-long-document .story-copy{margin-left:0}.layout-catalogue .feature-grid{grid-template-columns:repeat(4,1fr)}.layout-narrative .dialog-box{border-color:var(--highlight)}.layout-map .feature-card{border-radius:50% 50% var(--radius-md) var(--radius-md)}.layout-letter .section{max-width:64rem}.layout-stat-led .hero-metrics{background:rgba(255,255,255,.08);padding:1rem}.layout-index-first .feature-index{font-size:2.5rem}.layout-split-studio .story{display:grid;grid-template-columns:1fr 1fr;gap:2rem}.layout-feature-stack .feature-grid{grid-template-columns:1fr}.layout-feature-stack .feature-card{min-height:0;display:grid;grid-template-columns:4rem 14rem 1fr;align-items:center}.layout-faq-led .faq{max-width:62rem}.layout-bento .feature-card:nth-child(1){grid-row:span 2}.layout-manifesto .story-copy{font-size:clamp(1.25rem,2.5vw,1.7rem)}.layout-ecosystem .feature-grid{grid-template-columns:repeat(4,1fr)}.layout-portfolio-grid .gallery-grid{grid-template-columns:repeat(4,1fr)}.layout-quote-led .story-copy{border-left:6px solid var(--accent);padding-left:2rem}.layout-component-playground .feature-card{border-top:5px solid var(--secondary)}.layout-timeline .feature-grid{border-left:3px solid var(--accent);padding-left:1rem}.layout-specimen h2{letter-spacing:.02em}.layout-mega-footer .site-footer{padding-top:7rem}
@media(max-width:1023px){.primary-nav{display:none;position:absolute;top:var(--nav-h);left:0;right:0;padding:1rem;background:var(--paper);border-bottom:1px solid var(--rule);flex-direction:column}.primary-nav.is-open{display:flex}.menu-button{display:block}.nav-shell{grid-template-columns:minmax(0,1fr) auto auto}.gallery-full{grid-template-columns:repeat(3,1fr)}.layout-catalogue .feature-grid,.layout-ecosystem .feature-grid{grid-template-columns:repeat(2,1fr)}.layout-portfolio-grid .gallery-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:767px){:root{--nav-h:3.75rem}main{padding-bottom:4rem}.nav-shell{padding-inline:1rem;gap:.5rem}.nav-download{display:none}.brand{font-size:.88rem}.hero{min-height:42rem}.hero-overlay{background:linear-gradient(0deg,var(--ink) 0%,color-mix(in srgb,var(--ink) 64%,transparent) 70%,color-mix(in srgb,var(--ink) 30%,transparent))}.hero-content{padding:4rem 1rem 8rem}.hero h1{font-size:clamp(2.1rem,11vw,3.3rem)}.hero-metrics{grid-template-columns:repeat(2,1fr)}.dialog-box{left:1rem;right:1rem;bottom:1rem;width:auto}.info-strip{margin:0;padding:0;grid-template-columns:repeat(2,1fr)}.section{padding:3.5rem 1rem}.section-heading{grid-template-columns:1fr;gap:.75rem}.section-heading h2,.section-heading>p:last-child,.section-heading.with-link>div,.section-heading.with-link>a{grid-column:1;grid-row:auto}.section-heading.with-link>a{justify-self:start}.feature-grid,.fit-grid,.gallery-grid,.gallery-full,.platform-grid,.requirements-grid,.guide-card-grid,.layout-catalogue .feature-grid,.layout-ecosystem .feature-grid,.layout-portfolio-grid .gallery-grid{grid-template-columns:1fr}.layout-feature-stack .feature-card{grid-template-columns:3rem 1fr}.layout-feature-stack .feature-card p{grid-column:1/-1}.layout-split-studio .story{display:block}.download-panel{grid-template-columns:1fr}.download-panel .text-link{grid-column:1;text-align:left}.install-steps{grid-template-columns:1fr}.guide-layout,.long-article{grid-template-columns:1fr}.guide-toc,.long-article>aside{position:static}.final-cta{width:calc(100% - 2rem);padding:2rem;grid-template-columns:1fr}.final-cta small{grid-column:1}.footer-grid{grid-template-columns:1fr}.footer-grid ul{columns:1}.mobile-cta{position:fixed;z-index:90;left:0;right:0;bottom:0;min-height:4rem;padding:.55rem 1rem;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:.75rem;background:var(--surface);border-top:1px solid var(--rule)}.mobile-cta span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.78rem;font-weight:700}.back-top{bottom:5rem}.lightbox{padding:4rem .5rem 1rem;grid-template-columns:3.25rem 1fr 3.25rem}.lightbox button{padding:.5rem;font-size:.75rem}}
@media(max-width:374px){.info-strip{grid-template-columns:1fr}.hero-actions .button{width:100%}.tag-row span{font-size:.72rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}