*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f4f5f7;--surface: #ffffff;--border: #e2e4e9;--text: #1a1d23;--text-muted: #6b7280;--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #dc2626;--danger-hover: #b91c1c;--success: #16a34a;--warning: #d97706;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.08)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}.layout{display:flex;flex-direction:column;min-height:100vh}.topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:0 24px;height:56px;display:flex;align-items:center;justify-content:space-between}.topbar-brand{font-weight:700;font-size:16px;color:var(--primary)}.topbar-user{font-size:13px;color:var(--text-muted);display:flex;align-items:center;gap:12px}.main{flex:1;padding:24px;max-width:1200px;width:100%;margin:0 auto}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 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var(--border);border-radius:var(--radius);padding:14px;display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap}.empty{text-align:center;padding:40px;color:var(--text-muted)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:40px;width:360px;box-shadow:0 4px 24px #00000014}.login-title{font-size:22px;font-weight:700;text-align:center;margin-bottom:6px;color:var(--primary)}.login-subtitle{font-size:13px;color:var(--text-muted);text-align:center;margin-bottom:28px}.error-msg{background:#fee2e2;color:var(--danger);padding:10px 14px;border-radius:var(--radius);font-size:13px}.link{color:var(--primary);text-decoration:none}.link:hover{text-decoration:underline}.text-muted{color:var(--text-muted)}.mt-12{margin-top:12px}.masked{font-family:monospace;letter-spacing:2px}.topbar-nav{display:flex;gap:4px}.nav-link{padding:5px 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