*{box-sizing:border-box;margin:0;padding:0}:root{--primary:#4caf50;--primary-dark:#388e3c;--secondary:#2196f3;--accent:#ff9800;--bg-dark:#1a1a2e;--bg-card:#16213e;--text:#fff;--text-muted:#a0a0a0}body{background:var(--bg-dark);color:var(--text);min-height:100vh;font-family:Microsoft YaHei,PingFang SC,sans-serif;overflow-x:hidden}.stars{pointer-events:none;z-index:0;width:100%;height:100%;position:fixed;top:0;left:0}.star{background:#fff;border-radius:50%;width:2px;height:2px;animation:3s infinite twinkle;position:absolute}@keyframes twinkle{0%,to{opacity:.3}50%{opacity:1}}header{z-index:10;background:linear-gradient(#00000080 0%,#0000 100%);justify-content:space-between;align-items:center;padding:20px;display:flex;position:relative}.logo{align-items:center;gap:12px;display:flex}.logo-icon{background:linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);border-radius:12px;justify-content:center;align-items:center;width:48px;height:48px;font-size:24px;display:flex}.logo-text 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