:root{color-scheme:light;--background: #f8fafc;--foreground: #0f172a;--muted: #64748b;--card: #ffffff;--border: #e2e8f0;--primary: #111827;--primary-foreground: #f8fafc;--accent: #eef2ff;--warning: #b45309;--success: #047857}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 18% 16%,#dbeafe 0,transparent 26%),radial-gradient(circle at 85% 12%,#e0e7ff 0,transparent 24%),var(--background);color:var(--foreground);font-family:Inter,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}.shad-shell{max-width:1280px;margin:0 auto;padding:24px 20px 40px}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:18px;padding:20px;border:1px solid var(--border);border-radius:16px;background:linear-gradient(160deg,#fff,#f8fbff);box-shadow:0 10px 30px #0f172a0f}.eyebrow{margin:0;font-size:12px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}.hero h1{margin:8px 0 10px;font-size:clamp(24px,3.8vw,36px);text-wrap:balance}.subtitle{margin:0;color:var(--muted)}.step-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.step-badge{display:flex;align-items:center;gap:10px;border:1px solid var(--border);border-radius:12px;padding:10px 12px;background:#fff}.step-badge span{width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;background:#f1f5f9;color:#334155;font-size:13px;font-weight:700}.step-badge.done{border-color:#86efac;background:#f0fdf4}.step-badge.done span{background:#16a34a;color:#fff}.content-grid{margin-top:16px;display:grid;grid-template-columns:minmax(0,2.2fr) minmax(320px,1fr);gap:16px}.left-pane,.right-pane{display:flex;flex-direction:column;gap:16px}.card{border:1px solid var(--border);border-radius:14px;background:var(--card);padding:16px;box-shadow:0 6px 22px #0f172a0a}h2{margin:0 0 12px;font-size:18px}.uploader-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.dropzone{border:1px dashed #94a3b8;border-radius:12px;min-height:88px;display:flex;align-items:center;justify-content:center;text-align:center;padding:10px;color:#475569;background:#f8fafc;cursor:pointer;transition:all .16s ease}.dropzone:hover{border-color:#334155;background:#f1f5f9}.dropzone.drag-active{border-color:#111827;background:var(--accent)}.editor-wrap{width:fit-content;max-width:100%;border:1px solid var(--border);border-radius:12px;overflow:auto;background:#f8fafc}.editor-wrap .konvajs-content{cursor:grab}.editor-wrap .konvajs-content:active{cursor:grabbing}.mono{font-variant-numeric:tabular-nums;font-family:SFMono-Regular,Consolas,monospace}.button-row{display:flex;flex-wrap:wrap;gap:8px}.btn{height:36px;padding:0 14px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--foreground);cursor:pointer;transition:all .16s ease}button,input[type=checkbox]{cursor:pointer}.btn:hover:not(:disabled){background:#f8fafc;border-color:#cbd5e1}.btn:focus-visible{outline:2px solid #3b82f6;outline-offset:1px}.btn-primary{background:var(--primary);color:var(--primary-foreground);border-color:var(--primary)}.btn-primary:hover:not(:disabled){background:#1f2937}.btn:disabled{opacity:.45;cursor:not-allowed}button:disabled{cursor:not-allowed}.meta-line{margin:8px 0 0;color:var(--muted);font-size:13px}.truncate{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.warning{color:var(--warning)}.ok{color:var(--success)}.file-list{margin-top:10px;max-height:220px;overflow:auto;border:1px solid var(--border);border-radius:12px}.file-row{display:flex;align-items:center;gap:8px;padding:9px 10px;border-bottom:1px solid #f1f5f9;cursor:pointer}.file-row:last-child{border-bottom:none}.file-row:hover{background:#f8fafc}.progress-wrap{margin-top:12px;border:1px solid var(--border);border-radius:12px;padding:10px;background:#fafafa}.progress-label{display:flex;justify-content:space-between;font-size:13px;margin-bottom:8px;color:#334155}.progress-track{width:100%;height:8px;background:#e2e8f0;border-radius:999px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#111827,#2563eb);transition:width .2s ease}.preview-box{margin-top:12px}.preview-box h3{margin:0 0 8px;font-size:14px}.preview-box img{width:100%;max-width:420px;border-radius:12px;border:1px solid var(--border);object-fit:cover}.empty-state{color:var(--muted);margin:0}.log-card{margin-top:16px}.log-box{margin:0;max-height:240px;overflow:auto;border-radius:12px;padding:12px;background:#0b1120;color:#dbeafe;font-size:12px;line-height:1.45;font-family:SFMono-Regular,Consolas,monospace}@media (max-width: 1020px){.hero,.content-grid,.uploader-grid{grid-template-columns:1fr}}