:root{--bg: #030b14;--panel: rgba(7, 22, 38, .78);--panel-strong: rgba(9, 34, 58, .9);--line: rgba(61, 188, 255, .38);--line-strong: rgba(78, 214, 255, .88);--cyan: #53e8ff;--blue: #2e9bff;--green: #45f59a;--yellow: #ffc75a;--orange: #ff9d4a;--red: #ff4d5e;--text: #dff6ff;--muted: #87a6ba;--shadow: 0 0 24px rgba(35, 188, 255, .22), inset 0 0 30px rgba(20, 141, 220, .08)}*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden;background:var(--bg);color:var(--text);font-family:Microsoft YaHei,PingFang SC,Arial,sans-serif;letter-spacing:0}button{color:inherit;font:inherit}.screen-shell{position:relative;display:grid;grid-template-rows:104px 48px minmax(0,1fr) 38px;gap:12px;width:100vw;height:100vh;min-width:1280px;min-height:720px;padding:18px 28px 14px;background:radial-gradient(circle at 50% 0%,rgba(42,152,255,.32),transparent 32%),radial-gradient(circle at 10% 30%,rgba(20,214,255,.16),transparent 28%),radial-gradient(circle at 90% 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