:root{--background: #f3f6fb;--foreground: #1f2937;--card: #ffffff;--card-foreground: #111827;--popover: #ffffff;--primary: #2563eb;--primary-foreground: #ffffff;--secondary: #07c260;--secondary-foreground: #ffffff;--muted: #eef3f9;--muted-foreground: #6b7280;--accent: #eef5ff;--accent-foreground: #2563eb;--success: #10b981;--violet: #8b5cf6;--destructive: #dc2626;--destructive-foreground: #ffffff;--border: #dfe6ef;--input: #d7e0ea;--ring: rgba(37, 99, 235, .18);--radius: 8px;color:var(--foreground);background:var(--background);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.5}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#f8fbff 0%,var(--background) 42%),var(--background)}button,input,textarea,select{font:inherit}button{color:inherit}.app-shell{min-height:100vh;padding:0 24px 24px}.app-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:18px;width:calc(100% + 48px);margin:0 -24px 22px;padding:16px 30px;border-bottom:1px solid var(--border);background:#f8fbffe0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.brand-block{min-width:0}.eyebrow{display:inline-flex;color:#3b82f6;font-size:13px;font-weight:600;margin-bottom:4px}h1{margin:0;color:var(--foreground);font-size:30px;letter-spacing:0;line-height:1.1}.brand-block p{margin:8px 0 0;color:#64748b;font-size:14px}.header-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}.elapsed-pill{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 14px;border:1px solid #dbe5f2;border-radius:10px;background:#fff;color:#64748b;box-shadow:0 10px 24px #0f172a0f}.elapsed-pill span{font-size:13px}.elapsed-pill strong{color:#1e3a8a;font-size:16px;font-weight:700;font-variant-numeric:tabular-nums}.elapsed-pill.is-running{border-color:#07c26047;background:#07c26014}.workspace{display:grid;grid-template-columns:minmax(300px,390px) minmax(480px,1fr) minmax(340px,410px);gap:16px;max-width:1560px;margin:0 auto;align-items:start}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:0 1px 2px #0f172a0a,0 10px 28px #1e40af0a}.input-panel,.output-panel,.preview-panel{padding:18px}.preview-panel{padding:20px 26px}.card-header{margin-bottom:16px}.card-heading{display:flex;align-items:center;gap:9px;color:#334155}.card-icon{display:inline-flex;width:30px;height:30px;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:9px;background:var(--accent);color:var(--primary)}.card-header h2{margin:0;font-size:18px;line-height:1.2}.card-header p{margin:7px 0 0 39px;color:var(--muted-foreground);font-size:13px}.field{display:grid;gap:7px;margin-bottom:13px}.field span{color:#475569;font-size:13px;font-weight:500}input,textarea,select{width:100%;border:1px solid var(--input);border-radius:8px;background:#fff;padding:9px 11px;color:var(--foreground);outline:none;transition:border-color .16s ease,box-shadow .16s ease}textarea{resize:vertical}input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--ring)}.two-column{display:grid;grid-template-columns:1fr 1fr;gap:10px}.chips-editor{display:grid;grid-template-columns:repeat(2,minmax(0,1fr)) 38px 38px;gap:7px}.btn,.icon-button{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:8px;cursor:pointer;transition:background .15s ease,border-color .15s ease,transform .15s ease,opacity .15s ease}.btn{border:1px solid transparent;min-height:40px;padding:0 15px;font-weight:600}.btn-sm{min-height:34px;padding:0 11px;font-size:13px}.btn-primary{background:var(--primary);color:var(--primary-foreground);box-shadow:0 8px 16px #2563eb2e}.btn-secondary{background:var(--secondary);color:var(--secondary-foreground);box-shadow:0 8px 16px #07c2602e}.btn-outline{border-color:var(--border);background:#fff;color:#334155}.btn:hover:not(:disabled),.icon-button:hover:not(:disabled){transform:translateY(-1px)}.btn:disabled{cursor:wait;opacity:.7}.icon-button{min-width:38px;border:1px solid var(--border);background:#f8fafc;color:#475569}.full-width{width:100%}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.option-card{margin-top:15px;padding:12px;border:1px solid var(--border);border-radius:10px;background:#f8fbff}.switch-row{display:flex;align-items:flex-start;gap:10px;color:#334155}.switch-row input{width:18px;height:18px;margin-top:3px}.switch-row span{display:grid;gap:2px}.switch-row small{color:var(--muted-foreground);font-size:12px}.nested-option{margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}.nested-option:has(input:disabled){opacity:.58}.tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin-bottom:14px;padding:4px;border-radius:10px;background:#edf2f8}.tabs button{border:0;border-radius:8px;background:transparent;padding:8px;cursor:pointer;color:#475569;font-weight:600}.tabs .active{background:var(--card);color:var(--foreground);box-shadow:0 1px 3px #0f172a1a;color:var(--primary)}.alert{display:flex;align-items:flex-start;gap:9px;padding:12px;border:1px solid var(--border);border-radius:10px;background:#f8fbff;color:#334155;margin-bottom:14px}.alert-error{border-color:#e4a097;background:#fff1ee;color:var(--destructive)}.alert-compact{margin:8px 0;padding:9px;font-size:13px}.article-preview{color:#1f2937;font-size:16px}.article-preview h2{margin:24px 0 8px;font-size:21px}.article-preview h3{margin:18px 0 6px;color:#1d4ed8;font-size:16px}.article-preview p{margin:0 0 12px;text-align:justify}.strong-line{font-weight:600}.signature{border-top:1px solid var(--border);padding-top:14px;color:var(--muted-foreground)}.title-list{display:grid;gap:8px;margin-bottom:18px}.title-list button{display:flex;align-items:flex-start;gap:10px;text-align:left;border:1px solid var(--border);border-radius:10px;background:#f8fbff;padding:10px;cursor:pointer;color:var(--foreground)}.title-list button span{display:inline-flex;width:22px;height:22px;flex:0 0 22px;align-items:center;justify-content:center;border-radius:999px;background:var(--primary);color:#fff;font-size:12px}.article-image{margin:16px 0 18px}.article-image img,.image-card img{display:block;width:100%;aspect-ratio:4 / 3;object-fit:cover;border:1px solid var(--border);border-radius:10px;background:#edf2f8}.article-image figcaption{margin-top:7px;color:var(--muted-foreground);font-size:13px}.image-placeholder{border:1px dashed #c8d4e3;border-radius:10px;padding:12px;background:#f8fbff;color:var(--muted-foreground)}.image-plan{display:grid;gap:12px}.image-card{display:grid;gap:9px;border:1px solid var(--border);border-radius:12px;padding:12px;background:#fff}.image-card-title{display:flex;align-items:center;justify-content:space-between;gap:8px}.image-card p{margin:0;color:#475569}.image-card code{display:block;max-height:180px;overflow:auto;white-space:pre-wrap;color:#3d4e42;font-size:12px;line-height:1.55}.badge{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:999px;padding:2px 7px;background:#fff;color:#2563eb;font-size:11px;white-space:nowrap}.copy-box{display:grid;gap:10px}.copy-box textarea{min-height:520px;font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:13px}.empty-state{min-height:340px;display:grid;place-items:center;gap:10px;text-align:center;color:var(--muted-foreground);padding:28px}.empty-state p{max-width:420px;margin:0}.muted{color:var(--muted-foreground)}.toast-bubble{position:fixed;top:18px;right:24px;z-index:50;display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:10px;background:#1e293b;color:#fff;box-shadow:0 10px 28px #181f1b38;font-size:14px;animation:toast-in .18s ease-out}@keyframes toast-in{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.modal-backdrop{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:24px;background:#0f172a7a;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.settings-dialog{width:min(720px,100%);max-height:calc(100vh - 48px);overflow-y:auto;border:1px solid var(--border);border-radius:12px;background:#fff;padding:22px;box-shadow:0 24px 72px #0f172a3d}.settings-dialog-header,.settings-dialog-actions,.settings-section-title{display:flex;align-items:center}.settings-dialog-header{justify-content:space-between;gap:16px;margin-bottom:18px}.settings-dialog-header h2{margin:0;font-size:22px}.settings-section{margin-top:14px;border-top:1px solid var(--border);padding-top:16px}.settings-section-title{gap:8px;margin-bottom:13px;color:#334155}.settings-section .field:last-child,.compact-section .field{margin-bottom:0}.settings-unlock{display:flex;align-items:center;justify-content:space-between;gap:18px;border:1px solid var(--border);border-radius:8px;padding:14px;background:#f8fbff}.settings-unlock p{margin:0;color:var(--muted-foreground);font-size:13px}.settings-dialog-actions{justify-content:flex-end;gap:10px;margin-top:20px;border-top:1px solid var(--border);padding-top:16px}@media(max-width:1180px){.workspace{grid-template-columns:1fr}.app-header{align-items:flex-start;flex-direction:column}.header-actions{justify-content:flex-start}}@media(max-width:640px){.app-shell{padding:14px}h1{font-size:27px}.two-column,.chips-editor{grid-template-columns:1fr}.modal-backdrop{align-items:end;padding:0}.settings-dialog{max-height:92vh;border-radius:12px 12px 0 0;padding:18px}.settings-unlock{align-items:stretch;flex-direction:column}.card-header p{margin-left:0}}