:root{--foreground: #0f172a;--muted-foreground: #64748b;--border: #e2e8f0;--surface: #ffffff;--primary: #2563eb;--info-bg: #eff6ff;--success-bg: #ecfdf5;--warning-bg: #fffbeb;--error-bg: #fef2f2;--radius: 12px;--max-width: 880px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--foreground);background:#f8fafc}.shell-page{max-width:var(--max-width);margin:0 auto;padding:24px 20px 48px}.breadcrumb{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:12px;margin-bottom:16px}.breadcrumb a,.breadcrumb .muted,.breadcrumb .current{text-decoration:none}.breadcrumb a{color:var(--primary)}.breadcrumb .muted{color:var(--muted-foreground)}.breadcrumb .current{color:var(--foreground);font-weight:500}.breadcrumb .sep{color:var(--muted-foreground)}.page-header{border-bottom:1px solid var(--border);padding-bottom:16px;margin-bottom:20px}.eyebrow{margin:0 0 6px;font-size:11px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--muted-foreground)}.page-header h1{margin:0;font-size:20px;font-weight:600;letter-spacing:-.02em}.subtitle{margin:8px 0 0;font-size:14px;color:var(--muted-foreground)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.section-title{margin:0 0 12px;font-size:14px;font-weight:600}.helper{margin:0 0 12px;font-size:12px;color:var(--muted-foreground)}.device-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-bottom:16px}.device-btn{border:1px solid var(--border);background:var(--surface);border-radius:10px;padding:12px;font-size:14px;font-weight:500;cursor:pointer}.device-btn.active{border-color:var(--primary);color:var(--primary);background:var(--info-bg)}.upload-zone{display:block;border:1px dashed var(--border);border-radius:10px;padding:20px;text-align:center;font-size:14px;color:var(--muted-foreground);margin-bottom:12px;cursor:pointer}.upload-zone.accepted{border-color:var(--primary);background:var(--info-bg);color:var(--foreground)}.upload-zone input{display:none}.keywords-input{width:100%;border:1px solid var(--border);border-radius:10px;padding:12px;font-size:14px;resize:vertical;font-family:inherit}.field-error{color:#b91c1c;font-size:13px}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:500;text-decoration:none;border:none;cursor:pointer}.btn.primary{background:var(--primary);color:#fff}.btn.secondary{background:var(--surface);color:var(--foreground);border:1px solid var(--border)}.notice.info{background:var(--info-bg);border-color:#bfdbfe}.notice.success{background:var(--success-bg);border-color:#a7f3d0}.notice.warning{background:var(--warning-bg);border-color:#fde68a;margin-top:12px;padding:12px;border-radius:8px}.notice.error{background:var(--error-bg);border-color:#fecaca}.result-preview{background:#f1f5f9;border-radius:8px;padding:12px;font-size:13px;overflow:auto;white-space:pre-wrap}.skeleton-line{height:12px;background:#e2e8f0;border-radius:6px;margin-bottom:8px;animation:pulse 1.2s ease-in-out infinite}.skeleton-line.short{width:60%}.processing-estimate{margin:12px 0 4px;font-size:14px;font-weight:500;color:var(--foreground)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}