:root{
  --workspace-surface:#fff;
  --workspace-bg:#f4f7fb;
  --workspace-border:#dfe6ef;
  --workspace-border-strong:#cbd5e1;
  --workspace-text:#0f172a;
  --workspace-muted:#64748b;
  --workspace-blue:#2563eb;
  --workspace-blue-dark:#1d4ed8;
  --workspace-blue-soft:#eff6ff;
  --workspace-purple-soft:#f5f3ff;
  --workspace-green-soft:#ecfdf5;
  --workspace-shadow:0 18px 50px rgba(15,23,42,.08),0 2px 8px rgba(15,23,42,.04)
}
body{background:var(--workspace-bg);color:var(--workspace-text)}
.navbar{
  height:68px;
  padding-left:max(28px,calc((100vw - 1440px)/2));
  padding-right:max(28px,calc((100vw - 1440px)/2))
}
.nav-logo img{height:34px!important}
.nav-links{gap:30px}
.nav-links a{font-weight:650}
.tool-section{max-width:1480px;padding:42px 28px 128px}
.tool-head{max-width:820px;margin-bottom:28px}
.tool-head h1{font-size:clamp(1.65rem,2.6vw,2.15rem);line-height:1.2;letter-spacing:-.035em}
.tool-head p{max-width:760px;margin-top:9px;color:var(--workspace-muted);font-size:14px;line-height:1.65}
.workspace{
  display:grid;
  grid-template-columns:minmax(0,1fr) 370px;
  align-items:start;
  gap:24px
}
.canvas-area{display:block;min-width:0}
.canvas-area .tool-features{flex:none}
.upload-zone{
  position:relative;
  min-height:320px;
  padding:48px 36px;
  border:1.5px dashed var(--workspace-border-strong);
  border-radius:18px;
  background:rgba(255,255,255,.92);
  box-shadow:0 1px 2px rgba(15,23,42,.02);
  overflow:hidden
}
.upload-zone::before{
  content:"";
  position:absolute;
  width:240px;
  height:240px;
  border-radius:999px;
  top:-160px;
  left:calc(50% - 120px);
  background:radial-gradient(circle,rgba(59,130,246,.13),rgba(59,130,246,0) 70%);
  pointer-events:none
}
.upload-zone:hover,.upload-zone.drag-over{
  border-color:var(--workspace-blue);
  background:#f8fbff;
  box-shadow:0 14px 34px rgba(37,99,235,.09)
}
.upload-icon{
  width:60px;
  height:60px;
  margin-bottom:16px;
  border:1px solid #e2e8f0;
  border-radius:17px;
  background:linear-gradient(145deg,#fff,#eef2f7);
  box-shadow:0 8px 24px rgba(15,23,42,.07)
}
.upload-zone h3{font-size:18px;letter-spacing:-.015em}
.upload-zone p{color:var(--workspace-muted)}
.workspace-upload-summary{
  display:flex;
  flex-direction:column;
  align-items:center;
  width:100%
}
.workspace-upload-copy{text-align:center}
.workspace-upload-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:150px;
  min-height:42px;
  margin-top:16px;
  padding:10px 20px;
  border-radius:10px;
  background:var(--workspace-blue);
  color:#fff;
  font-size:13px;
  font-weight:800;
  box-shadow:0 8px 20px rgba(37,99,235,.22);
  pointer-events:none
}
.upload-zone:hover .workspace-upload-cta{background:var(--workspace-blue-dark)}
.format-chips{margin-top:14px}
.fmt-chip{padding:4px 9px;border:1px solid #e5eaf1;background:#f8fafc;color:#64748b}
.tool-features{
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:8px;
  min-height:0;
  margin-top:16px;
  padding:12px;
  border-color:var(--workspace-border);
  border-radius:16px;
  background:rgba(255,255,255,.86)
}
.tool-feat{gap:9px;padding:10px}
.tool-feat-icon{width:34px;height:34px;font-size:18px}
.tool-feat-title{font-size:12px}
.tool-feat-desc{font-size:11px;color:var(--workspace-muted)}
.workspace-has-images .tool-features{display:none}
.workspace-has-images .upload-zone{
  min-height:0!important;
  padding:14px!important;
  justify-content:flex-start;
  border-style:solid;
  cursor:pointer
}
.workspace-has-images .workspace-upload-summary{
  flex-direction:row;
  justify-content:space-between;
  gap:16px
}
.workspace-has-images .workspace-upload-copy{
  min-width:0;
  text-align:left
}
.workspace-has-images .workspace-upload-copy h3{
  margin:0 0 3px;
  font-size:14px
}
.workspace-has-images .workspace-upload-copy p{
  margin:0;
  font-size:12px
}
.workspace-has-images .workspace-upload-cta{
  min-width:112px;
  min-height:38px;
  margin:0;
  padding:8px 14px;
  flex:0 0 auto
}
.workspace-has-images .format-chips{display:none}
.upload-zone.has-preview{
  min-height:0!important;
  padding:14px!important;
  justify-content:flex-start
}
.workspace-media-layout{width:100%;min-width:0}
.workspace-has-images .workspace-media-layout{margin-top:14px}
.upload-zone.has-preview .workspace-media-layout{
  display:grid;
  grid-template-columns:184px minmax(0,1fr);
  align-items:stretch;
  gap:12px
}
.workspace-preview.visible{
  min-width:0;
  margin:0;
  padding:0;
  border:0
}
.workspace-preview-head{margin-bottom:9px}
.workspace-preview-head strong{color:var(--workspace-text);font-size:13px}
.workspace-preview-head button{
  border-color:var(--workspace-border);
  color:#64748b;
  box-shadow:0 1px 2px rgba(15,23,42,.04)
}
.workspace-preview-head button:hover{border-color:#94a3b8;background:#f8fafc;color:#0f172a}
.workspace-preview-stage{
  height:clamp(330px,48vh,520px);
  border-color:var(--workspace-border);
  border-radius:14px;
  background:
    linear-gradient(rgba(248,250,252,.72),rgba(248,250,252,.72)),
    repeating-conic-gradient(#dfe5ec 0% 25%,#fff 0% 50%) 50%/20px 20px
}
.workspace-preview-stage img{padding:12px}
.upload-zone .workspace-preview-help{margin-top:8px;color:var(--workspace-muted)}
.workspace-gallery-shell{
  padding:12px;
  overflow:hidden;
  border:1px solid var(--workspace-border);
  border-radius:16px;
  background:rgba(255,255,255,.92);
  box-shadow:0 3px 12px rgba(15,23,42,.04)
}
.workspace-gallery-shell[hidden]{display:none}
.workspace-gallery-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:9px;
  color:var(--workspace-muted);
  font-size:11px
}
.workspace-gallery-head>div{display:flex;align-items:baseline;gap:8px;min-width:0}
.workspace-gallery-head strong{color:var(--workspace-text);font-size:12px}
.workspace-gallery-count{white-space:nowrap}
.workspace-gallery-hint{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.workspace-gallery-shell .image-grid{
  display:grid;
  grid-template-columns:none;
  grid-auto-flow:column;
  grid-auto-columns:132px;
  gap:10px;
  margin:0;
  padding:4px 3px 8px;
  overflow-x:auto;
  overflow-y:hidden;
  overscroll-behavior-inline:contain;
  scrollbar-width:thin;
  scrollbar-color:#cbd5e1 transparent
}
.workspace-gallery-shell .image-grid::-webkit-scrollbar{height:7px}
.workspace-gallery-shell .image-grid::-webkit-scrollbar-thumb{border-radius:999px;background:#cbd5e1}
.upload-zone.has-preview .workspace-gallery-shell{
  min-width:0;
  max-height:520px;
  padding:10px
}
.upload-zone.has-preview .workspace-gallery-head{
  align-items:flex-start;
  flex-direction:column;
  gap:2px;
  margin-bottom:7px
}
.upload-zone.has-preview .workspace-gallery-hint{display:none}
.upload-zone.has-preview .workspace-gallery-shell .image-grid{
  grid-template-columns:1fr;
  grid-auto-flow:row;
  grid-auto-columns:auto;
  grid-auto-rows:160px;
  height:454px;
  padding:3px 5px 5px 3px;
  overflow-x:hidden;
  overflow-y:auto
}
.upload-zone.has-preview .image-card{width:160px;height:160px}
.image-card{
  width:132px;
  border:1px solid var(--workspace-border);
  border-radius:12px;
  box-shadow:0 3px 10px rgba(15,23,42,.06)
}
.image-card:hover{transform:none;border-color:#94a3b8;box-shadow:0 5px 14px rgba(15,23,42,.09)}
.image-card.preview-active{
  outline:0;
  border-color:var(--workspace-blue);
  box-shadow:0 0 0 3px rgba(37,99,235,.18),0 5px 14px rgba(15,23,42,.08)
}
.image-remove-btn{
  position:absolute;top:6px;right:6px;z-index:7;display:grid;width:26px;height:26px;
  place-items:center;padding:0;border:1px solid rgba(254,202,202,.92);border-radius:999px;
  background:rgba(255,255,255,.96);color:#b91c1c;box-shadow:0 2px 8px rgba(15,23,42,.14);
  cursor:pointer;font-size:17px;font-weight:700;line-height:1
}
.image-remove-btn:hover{border-color:#f87171;background:#fef2f2;color:#991b1b}
.image-remove-btn:focus-visible{outline:3px solid rgba(239,68,68,.25);outline-offset:2px}
.image-remove-btn:disabled{cursor:not-allowed;opacity:.55}
.image-card .status-badge{top:38px;right:8px}
.upload-zone.has-preview .ai-card-control{
  max-width:calc(100% - 44px);
  padding:6px 8px
}
.upload-zone.has-preview .ai-card-control small{
  max-width:none;
  overflow:visible;
  line-height:1.3;
  text-overflow:clip;
  white-space:normal
}
.upload-zone.has-preview .local-clean-card-btn{
  max-width:calc(100% - 58px);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap
}
.settings-panel{
  width:auto;
  max-height:calc(100vh - 88px);
  padding:16px;
  overflow-y:auto;
  overscroll-behavior:contain;
  border:1px solid var(--workspace-border);
  border-radius:18px;
  background:rgba(255,255,255,.96);
  box-shadow:var(--workspace-shadow);
  scrollbar-width:thin;
  scrollbar-color:#cbd5e1 transparent
}
.settings-panel::-webkit-scrollbar{width:7px}
.settings-panel::-webkit-scrollbar-thumb{border-radius:999px;background:#cbd5e1}
.panel-title{
  margin:0 2px 14px;
  padding:2px 2px 13px;
  border-bottom:1px solid var(--workspace-border);
  color:var(--workspace-text);
  font-size:14px;
  letter-spacing:-.01em
}
.local-clean-entry{
  margin:0 0 10px;
  padding:14px;
  border:1px solid #bbf7d0;
  border-radius:14px;
  background:linear-gradient(145deg,#fff,var(--workspace-green-soft))
}
.local-clean-entry-pill{background:#dcfce7;color:#047857}
.local-clean-shortcut{min-height:38px;border-radius:9px}
.ai-workflow-panel{
  margin:0 0 10px;
  padding:14px;
  border:1px solid #c4b5fd;
  border-radius:14px;
  background:linear-gradient(145deg,#fff,var(--workspace-purple-soft))
}
.ai-workflow-copy strong{color:#312e81}
.setting-group.workspace-section{
  margin:10px 0 0;
  padding:0;
  overflow:hidden;
  border:1px solid var(--workspace-border);
  border-radius:13px;
  background:#fff
}
.workspace-section-toggle{
  width:100%;
  min-height:46px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:11px 13px;
  border:0;
  background:#fff;
  color:var(--workspace-text);
  font:inherit;
  font-size:12px;
  font-weight:800;
  text-align:left;
  cursor:pointer
}
.workspace-section-toggle:hover{background:#f8fafc}
.workspace-section-toggle:focus-visible{outline:3px solid rgba(37,99,235,.2);outline-offset:-3px}
.workspace-section-caret{
  width:22px;
  height:22px;
  display:inline-grid;
  place-items:center;
  flex:0 0 auto;
  border-radius:7px;
  background:#f1f5f9;
  color:#64748b;
  font-size:11px;
  transition:transform .2s ease
}
.workspace-section.collapsed .workspace-section-caret{transform:rotate(-90deg)}
.workspace-section-body{padding:1px 13px 14px}
.workspace-section.collapsed .workspace-section-body{display:none}
.workspace-section-body>p:first-child{margin-top:0}
.workspace-section .background-mode-grid,
.workspace-section .size-grid,
.workspace-section .output-format-grid{gap:8px}
.workspace-section .bg-btn,
.workspace-section .size-btn,
.workspace-section .output-format-btn,
.workspace-section .product-transform-btn{border-width:1px;border-color:#d8e0ea}
.workspace-section .bg-btn.active,
.workspace-section .size-btn.active,
.workspace-section .output-format-btn.active,
.workspace-section .product-transform-btn.active{
  border-color:var(--workspace-blue);
  background:var(--workspace-blue-soft);
  box-shadow:inset 0 0 0 1px rgba(37,99,235,.08)
}
.workspace-section .rename-opt{border-width:1px;border-color:#d8e0ea}
.workspace-section .rename-opt.active{border-color:var(--workspace-blue);background:var(--workspace-blue-soft)}
.action-bar{
  padding:12px 24px;
  border-top:1px solid rgba(148,163,184,.28);
  background:rgba(255,255,255,.94);
  box-shadow:0 -14px 38px rgba(15,23,42,.12);
  backdrop-filter:blur(16px)
}
.action-bar-inner{max-width:1440px}
.status-text{color:#334155;font-weight:700}
.progress-track{background:#e2e8f0}
.action-btn{min-height:44px;border-radius:11px}
.action-btn-primary{background:var(--workspace-blue);box-shadow:0 8px 20px rgba(37,99,235,.22)}
.action-btn-primary:hover{background:var(--workspace-blue-dark)}
.action-btn-download{box-shadow:0 8px 20px rgba(16,185,129,.2)}
@media(max-width:1240px){
  .workspace{grid-template-columns:minmax(0,1fr) 350px}
  .tool-features{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:1100px){
  .workspace{grid-template-columns:1fr}
  .settings-panel{width:100%;max-height:none;position:static;overflow:visible}
  .tool-features{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media(max-width:800px){
  .navbar{height:60px;padding-left:16px;padding-right:16px}
  .tool-section{padding:28px 16px 112px}
  .tool-head h1{font-size:1.55rem}
  .upload-zone{min-height:270px;padding:36px 20px}
  .upload-zone.has-preview .workspace-media-layout{display:block}
  .upload-zone.has-preview .workspace-gallery-shell{max-height:none}
  .upload-zone.has-preview .workspace-gallery-head{
    align-items:center;
    flex-direction:row;
    gap:16px
  }
  .upload-zone.has-preview .workspace-gallery-hint{display:block}
  .upload-zone.has-preview .workspace-gallery-shell .image-grid{
    grid-template-columns:none;
    grid-auto-flow:column;
    grid-auto-columns:132px;
    grid-auto-rows:auto;
    width:100%;
    height:auto;
    padding:4px 3px 8px;
    overflow-x:auto;
    overflow-y:hidden
  }
  .upload-zone.has-preview .image-card{width:132px;height:132px}
  .upload-zone.has-preview .workspace-preview.visible{
    margin-top:12px;
    padding-top:12px;
    border-top:1px solid var(--workspace-border)
  }
  .workspace-preview-stage{height:min(46vh,420px)}
  .tool-features{grid-template-columns:repeat(2,minmax(0,1fr))}
  .action-bar{padding:10px 12px}
  .action-bar-inner{gap:10px}
}
@media(max-width:520px){
  .tool-features{grid-template-columns:1fr}
  .workspace-upload-cta{width:100%;max-width:220px}
  .workspace-has-images .workspace-upload-summary{align-items:flex-start;flex-direction:column;gap:10px}
  .workspace-has-images .workspace-upload-cta{width:100%;max-width:none}
  .workspace-gallery-head{align-items:flex-start;flex-direction:column;gap:3px}
  .workspace-gallery-shell .image-grid{grid-auto-columns:104px}
  .image-card{width:104px}
  .upload-zone.has-preview .workspace-gallery-shell .image-grid{grid-auto-columns:124px}
  .upload-zone.has-preview .image-card{width:124px;height:124px}
  .workspace-preview-stage{height:min(44vh,360px)}
  .settings-panel{padding:12px;border-radius:15px}
  .local-clean-entry,.ai-workflow-panel{padding:12px}
}