/* Hallmark · pre-emit critique: P4 H5 E4 S5 R5 V4
 * macrostructure: Photographic · theme: custom coal / paper / yellow
 * genre: atmospheric adapted to supplied visual-novel brief · enrichment: official scenes
 * nav: N9 · footer: Ft2 · user palette and system Chinese fonts take precedence */
:root{--color-paper:#111315;--color-paper-2:#1d2023;--color-paper-3:#292d32;--color-ink:#f5f0e6;--color-ink-2:#c6c5c1;--color-muted:#a5abb4;--color-rule:#4b5563;--color-accent:#facc15;--color-accent-ink:#111315;--color-pink:#efd5e1;--color-lavender:#c8c1dd;--color-vermilion:#b8322a;--color-error:#dc2626;--color-clear:transparent;--color-overlay:rgba(17,19,21,.91);--color-backdrop:rgba(17,19,21,.96);--font-display:'Songti SC','STSong','SimSun',serif;--font-body:'PingFang SC','Microsoft YaHei',system-ui,sans-serif;--font-mono:ui-monospace,'SFMono-Regular',monospace;--space-unit:4px;--space-section:96px;--max-width:1240px}
*{box-sizing:border-box}html,body{overflow-x:clip}html{scroll-behavior:smooth;scroll-padding-top:94px}body{margin:0;background:var(--color-paper);color:var(--color-ink);font-family:var(--font-body);font-size:16px;line-height:1.8}h1,h2,h3{font-style:normal;line-height:1.28;overflow-wrap:anywhere;min-width:0}h1,h2{font-family:var(--font-display)}h1{font-size:clamp(36px,4.2vw,60px);letter-spacing:-.045em}h2{font-size:clamp(29px,3vw,44px);margin:0 0 24px}h3{font-size:21px}p{margin:0 0 20px}a{color:inherit;text-decoration:none}a:hover{color:var(--color-accent)}button{font:inherit;cursor:pointer;color:inherit}img{display:block;max-width:100%;height:auto}figure{margin:0}button,a,summary{-webkit-tap-highlight-color:var(--color-clear)}:focus-visible{outline:3px solid var(--color-accent);outline-offset:5px}a,button{transition:background-color .12s,color .12s,box-shadow .12s}button:disabled,[aria-disabled=true]{opacity:.45;cursor:not-allowed}button[data-state=loading]{cursor:wait}button[data-state=error]{outline:2px solid var(--color-error)}button[data-state=success]{outline:2px solid var(--color-lavender)}.wrap{width:min(var(--max-width),calc(100% - 80px));margin-inline:auto}.skip{position:fixed;left:20px;top:-80px;z-index:100;background:var(--color-accent);color:var(--color-accent-ink);padding:12px}.skip:focus{top:12px}.topbar{position:sticky;top:0;z-index:20;background:var(--color-paper);border-bottom:1px solid var(--color-paper-3)}.navrow{min-height:80px;display:flex;gap:32px;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-size:15px;white-space:nowrap}.brand img{border-radius:50%;width:36px;height:36px}.brand small{display:block;font:10px var(--font-mono);letter-spacing:.12em;color:var(--color-muted)}.navlinks{display:flex;align-items:center;gap:28px}.navlinks a{display:flex;align-items:center;min-height:44px;white-space:nowrap;font-size:14px}.navlinks a[aria-current=page]{color:var(--color-accent)}.navlinks .nav-cta{border-bottom:2px solid var(--color-accent)}.menu{display:none;background:var(--color-paper-2);border:1px solid var(--color-rule);padding:8px 16px;min-height:44px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:24px;background:var(--color-accent);color:var(--color-accent-ink);padding:14px 24px;font-weight:700;font-size:15px;min-height:52px;white-space:nowrap;box-shadow:4px 4px 0 var(--color-rule);border:1px solid var(--color-accent)}.btn:hover{color:var(--color-accent-ink);background:var(--color-ink);border-color:var(--color-ink)}.btn:active{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--color-rule)}.btn.secondary{background:var(--color-clear);border-color:var(--color-rule);color:var(--color-ink);box-shadow:none}.btn.secondary:hover{border-color:var(--color-ink)}.actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}.eyebrow{font:12px var(--font-mono);letter-spacing:.14em;color:var(--color-muted);margin-bottom:16px}.eyebrow.accent{color:var(--color-accent)}.muted{color:var(--color-muted)}.fine{font-size:12px;color:var(--color-muted);line-height:1.7;margin:16px 0 0}.stage{position:relative;max-width:1600px;margin:auto;min-height:690px;background:var(--color-paper-2)}.stage>img{width:100%;aspect-ratio:16/9;object-fit:contain;min-height:690px}.stage:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,var(--color-overlay),var(--color-clear) 76%);pointer-events:none}.stage-copy{position:absolute;z-index:2;top:70px;left:max(40px,calc((100% - 1240px)/2));width:min(560px,46%)}.stage h1{margin:0 0 24px}.subtitle{display:block;font:20px 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