:root{color:#1f2933;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;background:#f6f8f7;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{min-width:320px;margin:0}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}.app-shell{min-height:100vh;padding:20px}.topbar{justify-content:space-between;align-items:center;gap:16px;min-height:64px;margin-bottom:16px;display:flex}.topbar h1{color:#15201b;letter-spacing:0;margin:0;font-size:28px;line-height:1.1}.topbar p{color:#6b766f;margin:5px 0 0;font-size:14px}.status-strip{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;max-width:680px;display:flex}.status-strip span,.status-strip strong{color:#56635c;background:#fff;border:1px solid #d8dfdb;border-radius:6px;align-items:center;min-height:32px;padding:0 10px;font-size:13px;font-weight:600;display:inline-flex}.status-strip strong{color:#174831;background:#eaf5ef;border-color:#acc9bb}.workspace{grid-template-columns:minmax(260px,320px) minmax(420px,1fr) minmax(300px,360px);gap:16px;min-height:calc(100vh - 116px);display:grid}.panel,.preview-panel{background:#fff;border:1px solid #d8dfdb;border-radius:8px;min-width:0;box-shadow:0 10px 28px #2d3f3514}.media-panel,.controls-panel{flex-direction:column;display:flex;overflow:hidden}.drop-zone{color:#305640;text-align:center;background:#f4faf6;border:1px dashed #9db6aa;border-radius:8px;place-items:center;gap:12px;min-height:176px;margin:14px;padding:18px;display:grid}.drop-zone input{display:none}.drop-zone strong{color:#1f3d2f;font-size:15px}.primary-button,.export-actions button{color:#fff;background:#146c53;border:0;border-radius:6px;justify-content:center;align-items:center;gap:8px;min-height:38px;padding:0 14px;font-weight:700;display:inline-flex}.primary-button:hover,.export-actions button:hover:not(:disabled){background:#0f5d48}.list-header,.section-title,.preview-toolbar{color:#25352d;border-bottom:1px solid #e3e8e5;justify-content:space-between;align-items:center;gap:10px;min-height:44px;padding:0 14px;font-size:14px;font-weight:800;display:flex}.icon-button,.remove-row{color:#4d5c54;background:#fff;border:1px solid #d8dfdb;border-radius:6px;justify-content:center;align-items:center;width:32px;height:32px;display:inline-flex}.icon-button:hover,.remove-row:hover{color:#a72943;border-color:#c9435f}.image-list{align-content:start;gap:8px;min-height:0;padding:10px;display:grid;overflow:auto}.image-row{text-align:left;background:#fff;border:1px solid #e1e7e3;border-radius:8px;grid-template-columns:48px minmax(0,1fr) 32px;align-items:center;gap:10px;width:100%;min-height:64px;padding:8px;display:grid}.image-row:hover,.image-row.selected{background:#f0f8f4;border-color:#87b29d}.image-row img{object-fit:cover;background:#edf1ee;border-radius:6px;width:48px;height:48px}.image-row span{gap:5px;min-width:0;display:grid}.image-row strong,.preview-toolbar span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.image-row strong{color:#26342d;font-size:13px}.image-row small{color:#69756f;text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.empty-state,.preview-placeholder{color:#7b8781;place-items:center;gap:10px;font-weight:700;display:grid}.empty-state{min-height:180px}.preview-panel{grid-template-rows:44px minmax(0,1fr);display:grid;overflow:hidden}.preview-toolbar{background:#fff}.preview-toolbar span:last-child{color:#69756f;font-size:13px;font-weight:700}.preview-stage{background-color:#fbfcfb;background-image:linear-gradient(45deg,#edf1ee 25%,#0000 25%),linear-gradient(-45deg,#edf1ee 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#edf1ee 75%),linear-gradient(-45deg,#0000 75%,#edf1ee 75%);background-position:0 0,0 10px,10px -10px,-10px 0;background-repeat:repeat,repeat,repeat,repeat;background-size:20px 20px;background-attachment:scroll,scroll,scroll,scroll;background-origin:padding-box,padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box,border-box;justify-content:center;align-items:center;min-height:420px;padding:18px;display:flex;overflow:auto}.preview-stage img{background:#fff;border:1px solid #1e302724;border-radius:4px;max-width:100%;max-height:calc(100vh - 180px);display:block;box-shadow:0 18px 48px #1c2b2329}.preview-placeholder{background:#ffffffc7;border:1px solid #dbe2de;border-radius:8px;width:min(440px,100%);min-height:260px}.controls-panel{overflow-y:auto}.control-section{border-bottom:1px solid #e3e8e5;gap:12px;padding:14px;display:grid}.control-section:last-child{border-bottom:0}.field,.range-field{color:#46554d;gap:7px;font-size:13px;font-weight:700;display:grid}.field input:not([type=color]),.field select{color:#23342b;background:#fff;border:1px solid #d5ddd8;border-radius:6px;width:100%;min-height:38px;padding:0 10px}.field input[type=color]{background:#fff;border:1px solid #d5ddd8;border-radius:6px;width:100%;height:38px;padding:3px}.inline-fields{grid-template-columns:1fr 1fr;gap:10px;display:grid}.segmented{background:#f3f6f4;border:1px solid #d5ddd8;border-radius:8px;grid-template-columns:1fr 1fr;gap:6px;padding:4px;display:grid}.segmented button,.position-grid button{color:#516058;background:0 0;border:0;border-radius:6px;min-height:34px;font-weight:800}.segmented button.active,.position-grid button.active{color:#12614b;background:#fff;box-shadow:0 2px 8px #2d3f351a}.position-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;display:grid}.position-grid button{border:1px solid #d5ddd8}.range-field span{justify-content:space-between;align-items:center;gap:12px;display:flex}.range-field strong{color:#173f31;font-size:12px}.range-field input{accent-color:#146c53;width:100%}.export-actions{grid-template-columns:1fr;gap:8px;display:grid}.export-actions button{background:#304c89;width:100%}.export-actions button:hover:not(:disabled){background:#263e72}.export-actions button:nth-child(2){background:#146c53}.export-actions button:nth-child(2):hover:not(:disabled){background:#0f5d48}.export-actions button:nth-child(3){background:#9b3b50}.export-actions button:nth-child(3):hover:not(:disabled){background:#823043}.spin{animation:.9s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=1180px){.workspace{grid-template-columns:300px minmax(0,1fr)}.controls-panel{grid-column:1/-1;grid-template-columns:repeat(2,minmax(0,1fr));display:grid;overflow:visible}.control-section{border-right:1px solid #e3e8e5}}@media (width<=760px){.app-shell{padding:12px}.topbar{flex-direction:column;align-items:stretch}.status-strip{justify-content:flex-start}.workspace,.controls-panel{grid-template-columns:1fr}.preview-stage{min-height:320px;padding:10px}.preview-stage img{max-height:62vh}.control-section{border-right:0}}