*,:before,:after{box-sizing:border-box}:root{--page-bg:#faf7f2;--card-bg:#fffcfa;--surface-muted:#ebe8e3;--border-subtle:#e3ded8;--border-card:transparent;--text-primary:#455a64;--text-secondary:#78909c;--text-muted:#90a4ae;--primary:#1e88e5;--primary-hover:#1565c0;--primary-soft:#e3f2fd;--primary-soft-border:#90caf9;--link:#1565c0;--focus-ring:#1e88e54d;--header-gradient:linear-gradient(135deg, #1565c0 0%, #1e88e5 42%, #64b5f6 100%);--auth-gradient:linear-gradient(160deg, #0d47a1 0%, #1565c0 36%, #1976d2 68%, #42a5f5 100%);--shadow-card:0 6px 24px #192d4611, 0 2px 8px #192d460a;--shadow-sm:0 1px 4px #192d460f;--primary-glow:0 2px 12px #1e88e561;--radius-card:18px;--radius-md:12px;--radius-sm:10px;--radius-pill:999px;--success:#66bb6a;--warning:#ffb74d;--danger-text:#b97171;--danger-bg:#fff8f7;--danger-border:#f0c9c9}html{-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.55}body{color:var(--text-primary);background:var(--page-bg);margin:0}#app{min-height:100vh}#app button.btn.primary{transition:transform .18s,box-shadow .18s,background-color .15s}#app button.btn.primary:active:not(:disabled){box-shadow:var(--primary-glow);transform:translateY(-2px)}.empty-hint{color:var(--text-muted);margin:.65rem 0 0;font-size:.8125rem;font-weight:400;line-height:1.45;display:block}