@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');
:root{--navy:#13264c;--blue:#2563d9;--muted:#66758f;--line:#dce4ef;--soft:#f4f7fb;--white:#fff;--green:#14845a;--red:#c94b4b;--amber:#ad6a17;font-family:'Noto Sans SC','Microsoft YaHei',sans-serif;color:var(--navy);background:#f8fafd;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}#app{min-height:100vh}.top{height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 34px;position:sticky;top:0;z-index:20}.brand{font-size:22px;font-weight:700;letter-spacing:-.035em;color:#10285a}.brand span{font-size:13px;font-weight:600;letter-spacing:.08em;margin-left:10px;color:#567197}.top-right{display:flex;gap:24px;align-items:center}.top-link{font-size:13px;font-weight:600;color:#4b5e7d}.top-link:hover,.top-link.active{color:var(--blue)}.user-button{border:1px solid 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