:root{--primary: #5868ef;--primary-dark: #4656db;--text: #17233d;--muted: #68748d;--line: rgba(99, 113, 157, .16);--card: rgba(255, 255, 255, .88);--soft: rgba(244, 247, 255, .88);--field: rgba(255, 255, 255, .82);--shadow: 0 22px 60px rgba(48, 61, 112, .14);color-scheme:light;font-family:Microsoft YaHei,PingFang SC,system-ui,sans-serif}*{box-sizing:border-box}html{min-width:320px}body{height:100vh;margin:0;overflow:hidden;color:var(--text);background:#e8efff}button,input,textarea,select{color:inherit;font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.icon-library{position:absolute;width:0;height:0;overflow:hidden}.page-background{position:fixed;z-index:-1;inset:0;background:radial-gradient(circle at 12% 0,rgba(111,202,255,.42),transparent 34%),radial-gradient(circle at 88% 94%,rgba(187,140,255,.36),transparent 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