:root{color-scheme:dark;--bg: #070b12;--bg-soft: #0d1420;--panel: rgba(11, 18, 28, .9);--panel-solid: #101825;--line: rgba(136, 165, 190, .22);--line-strong: rgba(91, 246, 207, .44);--text: #f4f7f8;--muted: #93a5b2;--subtle: #637584;--accent: #5bf6cf;--accent-2: #7fdcff;--warn: #f6c667;--danger: #ff8a73;--success: #5bf6cf;--shadow: rgba(0, 0, 0, .42);--radius: 8px}*{box-sizing:border-box}html,body{width:100%;min-height:100%;margin:0;background:radial-gradient(circle at 12% 18%,rgba(91,246,207,.12),transparent 24rem),radial-gradient(circle at 82% 12%,rgba(127,220,255,.11),transparent 28rem),linear-gradient(145deg,#08101a,#0b0d16 48%,#05070b);color:var(--text);font-family:Microsoft YaHei UI,Microsoft YaHei,PingFang SC,Segoe UI,sans-serif;overflow-x:hidden}body:before{content:"";pointer-events:none;position:fixed;inset:0;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%)}button,kbd,code,summary{font:inherit}button,summary{-webkit-tap-highlight-color:transparent}.shell{width:min(1360px,100vw);min-height:100vh;margin:0 auto;padding:clamp(10px,2vw,24px)}.game-shell{min-height:calc(100vh - 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