*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f5f5f7;--surface:#fff;--surface-hover:#f0f0f2;--border:#e0e0e4;--text:#1a1a1a;--text-muted:#6b7280;--primary:#1a1a1a;--primary-hover:#333;--danger:#dc2626;--danger-hover:#b91c1c;--radius:10px;--shadow-sm:0 1px 2px #0000000f;--shadow:0 1px 3px #00000014, 0 1px 2px #0000000f;--shadow-md:0 4px 12px #00000014, 0 1px 3px #0000000f;--shadow-lg:0 8px 24px #0000001a, 0 2px 8px #0000000f;--font:"Inter", system-ui, -apple-system, sans-serif}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh}#root{min-height:100vh}.uploader{border:2px dashed var(--border);border-radius:var(--radius);text-align:center;cursor:pointer;background:var(--surface);box-shadow:var(--shadow-sm);margin-bottom:24px;padding:48px 24px;transition:all .15s}.uploader:hover,.uploader.drag-over{border-color:var(--primary);background:#6366f10d}.uploader-icon{color:var(--text-muted);margin-bottom:12px}.uploader-text{margin-bottom:4px;font-size:15px;font-weight:500}.uploader-hint{color:var(--text-muted);font-size:13px}.settings{flex-direction:column;gap:16px;display:flex}.settings-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding-bottom:12px;display:flex}.settings-title{font-size:16px;font-weight:600}.reset-btn{color:var(--primary);cursor:pointer;font-size:13px;font-weight:500;font-family:var(--font);background:0 0;border:none;border-radius:4px;padding:4px 8px;transition:background 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solid var(--border);justify-content:flex-end;padding:8px 12px;display:flex}.desc-regenerate-btn{border:1px solid var(--border);border-radius:var(--radius);color:var(--text-muted);font-size:12px;font-weight:500;font-family:var(--font);cursor:pointer;background:0 0;align-items:center;gap:6px;padding:6px 14px;transition:all .15s;display:flex}.desc-regenerate-btn:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}.desc-regenerate-btn:disabled{opacity:.4;cursor:not-allowed}@media (width<=1024px){.desc-layout{flex-direction:column}.desc-col{border-right:none;border-bottom:1px solid var(--border);height:auto}.desc-col:last-child{border-bottom:none}}@media (width<=768px){.desc-row{flex-direction:column}}.app{flex-direction:column;min-height:100vh;display:flex}.app-header{border-bottom:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm);z-index:5;justify-content:space-between;align-items:center;padding:20px 40px;display:flex;position:relative}.brand{align-items:center;gap:20px;display:flex}.app-nav{gap:4px;display:flex}.app-nav a{border-radius:var(--radius);color:var(--text-muted);padding:8px 16px;font-size:14px;font-weight:500;text-decoration:none;transition:all .15s}.app-nav a:hover{color:var(--text);background:var(--surface-hover)}.app-nav a.active{color:#fff;background:var(--primary);box-shadow:var(--shadow-sm)}.brand-logo{width:auto;height:56px}.app-header h1{margin-bottom:2px;font-size:22px;font-weight:600}.subtitle{color:var(--text-muted);font-size:13px}.app-layout{flex:1;display:flex;overflow:hidden}.sidebar{border-right:1px solid var(--border);background:var(--surface);flex-direction:column;gap:16px;width:320px;min-width:320px;height:calc(100vh - 155px);padding:24px;display:flex;position:sticky;top:0;overflow-y:auto}.main-content{flex:1;height:calc(100vh - 155px);padding:24px;overflow-y:auto}.app-footer{border-top:1px solid var(--border);background:var(--surface);z-index:5;justify-content:space-between;align-items:center;padding:12px 40px;display:flex;position:relative;box-shadow:0 -2px 8px #0000000a}.footer-info{align-items:center;display:flex}.footer-count{color:var(--text-muted);font-size:13px}.footer-actions{gap:8px;display:flex}.footer-actions .btn{width:auto}.btn{border-radius:var(--radius);cursor:pointer;font-size:14px;font-weight:500;font-family:var(--font);width:100%;box-shadow:var(--shadow-sm);border:none;padding:10px 20px;transition:all .15s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-danger{color:var(--danger);border:1px solid var(--danger);background:0 0}.btn-danger:hover:not(:disabled){background:var(--danger);color:#fff}@media (width<=768px){.app-layout{flex-direction:column}.sidebar{width:100%;min-width:unset;border-right:none;border-bottom:1px solid var(--border);max-height:unset}.app-header{flex-direction:column;align-items:flex-start;gap:12px;padding:16px 20px}.brand-logo{height:40px}.app-header h1{font-size:18px}.main-content{padding:16px}.app-footer{padding:12px 20px}}