:root{--bg: #f5f7fc;--bg2: #eef1f8;--card: #ffffff;--border: #e6e9f2;--border-strong: #cdd3e5;--text: #1c2233;--muted: #7b849c;--brand: #3b6ef5;--brand2: #7a5af5;--brand-soft: rgba(59, 110, 245, .08);--green: #0ecb81;--green-bg: rgba(14, 203, 129, .1);--red: #f6465d;--red-bg: rgba(246, 70, 93, .08);--gold: #f0a53a;--radius: 12px;--shadow: 0 6px 24px rgba(28, 34, 51, .07);--shadow-hover: 0 10px 32px rgba(59, 110, 245, .12)}*{box-sizing:border-box;margin:0;padding:0}html{color-scheme:light}body{background:radial-gradient(900px 300px at 20% -5%,rgba(59,110,245,.05),transparent 60%),var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;min-height:100vh;font-size:14px}a{color:inherit;text-decoration:none}.app{min-height:100vh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:20px;padding:11px 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