:root{--bg: #fafafa;--bg-card: #ffffff;--bg-hover: #f5f5f5;--bg-active: #eeeeee;--text: #212121;--text-secondary: #757575;--text-tertiary: #9e9e9e;--blue: #1976d2;--blue-light: #e3f2fd;--blue-dark: #1565c0;--green: #2e7d32;--green-light: #e8f5e9;--red: #c62828;--red-light: #ffebee;--orange: #ef6c00;--orange-light: #fff3e0;--purple: #7b1fa2;--border: #e0e0e0;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);--shadow-lg: 0 10px 25px rgba(0,0,0,.1), 0 6px 10px rgba(0,0,0,.08);--radius: 8px;--radius-sm: 6px;--radius-lg: 12px;--transition: all .15s ease}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased}a{color:var(--blue);text-decoration:none}a:hover{color:var(--blue-dark)}button{font-family:inherit;font-size:inherit;border:none;background:none;cursor:pointer;outline:none;transition:var(--transition)}.container{max-width:1200px;margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius);font-weight:500;font-size:14px;transition:var(--transition);white-space:nowrap}.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue-dark)}.btn-secondary{background:var(--bg-card);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-hover)}.btn-ghost{color:var(--text-secondary)}.btn-ghost:hover{color:var(--text);background:var(--bg-hover)}.btn-sm{padding:6px 14px;font-size:13px}.btn-lg{padding:12px 24px;font-size:15px}.btn:disabled{opacity:.5;cursor:not-allowed}.card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border)}.tag{display:inline-flex;align-items:center;padding:4px 10px;border-radius:4px;font-size:12px;font-weight:500;background:var(--bg-hover);color:var(--text-secondary)}.tag-blue{background:var(--blue-light);color:var(--blue)}.progress-bar{height:4px;background:var(--bg-hover);border-radius:2px;overflow:hidden}.progress-bar-fill{height:100%;background:var(--blue);border-radius:2px;transition:width .3s ease}.progress-bar-fill.success{background:var(--green)}code{background:#f5f5f5;color:#d32f2f;padding:2px 6px;border-radius:3px;font-family:SF Mono,Fira Code,Consolas,Monaco,monospace;font-size:.9em}pre{background:#263238;color:#eff;padding:16px;border-radius:var(--radius);font-family:SF Mono,Fira Code,Consolas,Monaco,monospace;font-size:14px;line-height:1.5;overflow-x:auto;margin:12px 0}pre code{background:none;color:inherit;padding:0}.toast{position:fixed;top:20px;left:50%;transform:translate(-50%);padding:12px 24px;border-radius:var(--radius);background:var(--text);color:#fff;font-size:14px;box-shadow:var(--shadow-lg);z-index:10000;animation:toastIn .2s ease}.toast-success{background:var(--green)}.toast-error{background:var(--red)}@keyframes toastIn{0%{opacity:0;transform:translate(-50%) translateY(-10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#bdbdbd;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#9e9e9e}::selection{background:#1976d226}@media(max-width:768px){.container{padding:0 16px}}