:root{color:#f4f0df;background:#061019;font-family:Avenir Next Condensed,DIN Alternate,PingFang SC,Microsoft YaHei,sans-serif;font-synthesis:none;text-rendering:geometricPrecision}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;overflow:hidden}body{background:radial-gradient(circle at 18% 12%,rgba(28,86,96,.28),transparent 32%),radial-gradient(circle at 82% 90%,rgba(227,91,56,.15),transparent 34%),#061019;user-select:none;-webkit-user-select:none;touch-action:none}#app{display:grid;place-items:center;padding:clamp(8px,2vw,28px)}.game-shell{position:relative;width:min(96vw,calc(94vh * 1.578947));aspect-ratio:1200 / 760;border:1px solid rgba(183,223,218,.22);border-radius:clamp(14px,2vw,28px);background:#0d1f29;box-shadow:0 42px 90px #0000008c,0 0 0 8px #040c12cc,inset 0 0 0 1px #ffffff14;overflow:hidden;isolation:isolate}.game-shell:before{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;border-radius:inherit;box-shadow:inset 0 0 80px #0000002e}#game{display:block;width:100%;height:100%;outline:none;cursor:crosshair;touch-action:none}#game:focus-visible{box-shadow:inset 0 0 0 3px #76e7dab8}.shell-mark{position:absolute;z-index:3;bottom:8px;color:#d7efe86b;font-family:Courier New,monospace;font-size:clamp(6px,.65vw,9px);letter-spacing:.14em;pointer-events:none;mix-blend-mode:screen}.shell-mark--left{left:18px}.shell-mark--right{right:18px}.portrait-note{display:none;position:fixed;bottom:max(10px,env(safe-area-inset-bottom));margin:0;padding:6px 12px;border-radius:999px;background:#040d14bf;color:#edf2e2ad;font-size:12px;letter-spacing:.12em}@media(orientation:portrait)and (max-width:760px){#app{align-content:center;padding:0}.game-shell{width:100vw;border-radius:12px;opacity:.2;filter:blur(3px) saturate(.5);pointer-events:none}.portrait-note{display:flex;flex-direction:column;align-items:center;justify-content:center;inset:0;z-index:10;padding:0;border-radius:0;background:radial-gradient(circle at 50% 45%,rgba(28,92,99,.32),transparent 32%),#030d14d1;color:#fff8df;font-size:25px;font-weight:800;line-height:1.5;letter-spacing:.12em}.portrait-note:before{content:"↻";display:grid;width:72px;height:72px;margin-bottom:18px;place-items:center;border:2px solid rgba(131,238,224,.7);border-radius:22px;color:#77eadb;font-size:48px;line-height:1}.portrait-note span{color:#ddefe89e;font-size:14px;font-weight:600;letter-spacing:.18em}}@media(prefers-reduced-motion:reduce){.game-shell{box-shadow:0 20px 50px #0000007a}}