.dsApp{
  --bg:#0f172a;
  --card:#ffffff;
  --muted:#64748b;
  --line:#e2e8f0;
  --soft:#f8fafc;
  --accent:#2563eb;
  --accentText:#ffffff;
  --success:#0f766e;
  max-width:1280px;
  margin:0 auto;
  padding:24px 16px 120px;
}
.dsHero{display:grid;gap:20px;margin-bottom:24px}
.dsEyebrow{display:inline-flex;padding:6px 10px;border-radius:999px;background:#dbeafe;color:#1d4ed8;font-weight:700;font-size:.88rem}
.dsHero h1{font-size:clamp(1.9rem,3vw,3rem);line-height:1.1;margin:12px 0}
.dsIntro{max-width:860px;color:var(--muted);font-size:1.05rem}
.dsTrust{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.dsTrust span{background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af;padding:8px 12px;border-radius:999px;font-size:.92rem}
.dsSteps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.dsStep{background:var(--soft);border:1px solid var(--line);padding:12px;border-radius:16px;font-weight:700;color:#475569;display:flex;align-items:center;gap:10px}
.dsStep span{width:30px;height:30px;border-radius:999px;background:#e2e8f0;display:inline-grid;place-items:center}
.dsStep.is-active{background:#dbeafe;border-color:#93c5fd;color:#1d4ed8}
.dsStep.is-active span{background:#2563eb;color:#fff}
.dsPanel{display:block}
.dsGrid{display:grid;gap:20px}
.dsGridUpload{grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr)}
.dsUploadCard,.dsFeatureCard,.dsSeoCard,.dsCanvasCard,.dsControlCard,.dsResultPreview,.dsResultControls{
  background:var(--card);border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:0 10px 28px rgba(15,23,42,.06)
}
.dsDrop{display:block;border:2px dashed #94a3b8;background:linear-gradient(180deg,#f8fafc,#eef2ff);border-radius:24px;padding:32px 18px;cursor:pointer;text-align:center;transition:.2s}
.dsDrop:hover,.dsDrop.is-drag{border-color:#2563eb;background:linear-gradient(180deg,#eff6ff,#e0f2fe)}
.dsDropIcon{font-size:2rem;margin-bottom:10px}
.dsDropInner{display:grid;gap:8px;justify-items:center}
.dsMeta{display:grid;gap:12px;margin-top:18px}
.dsMeta div{display:flex;justify-content:space-between;gap:10px;background:var(--soft);border:1px solid var(--line);padding:12px 14px;border-radius:16px}
.dsMeta span{color:var(--muted)}
.dsFeatureCard{display:grid;gap:16px}
.dsFeatureCard article{padding:14px;border:1px solid var(--line);border-radius:18px;background:var(--soft)}
.dsFeatureCard h3,.dsSeoCard h3{margin:0 0 8px}
.dsSeo{margin-top:24px;display:grid;gap:18px}
.dsSeo p{color:#475569}
.dsSeoCols{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.dsFaq{background:#fff;border:1px solid var(--line);border-radius:24px;padding:20px}
.dsFaq details{border-top:1px solid var(--line);padding:14px 0}
.dsFaq details:first-of-type{border-top:0;padding-top:0}
.dsFaq summary{cursor:pointer;font-weight:700}
.dsEditorHead,.dsResultHead{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:18px}
.dsStatus{padding:10px 14px;border-radius:999px;background:#ecfeff;color:var(--success);border:1px solid #99f6e4;font-weight:700;white-space:nowrap}
.dsEditorGrid,.dsResultGrid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);gap:20px;align-items:start}
.dsCanvasToolbar{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:12px;flex-wrap:wrap}
.dsCanvasToolbar span{color:var(--muted)}
.dsCanvasWrap{position:relative;border-radius:20px;overflow:auto;background:#0f172a;padding:16px;min-height:420px;display:grid;place-items:center}
#previewCanvas,#resultCanvas{max-width:100%;height:auto;touch-action:none;background:#111827;border-radius:14px}
.dsControls,.dsResultControls{display:grid;gap:16px}
.dsControlCard h3{margin:0 0 12px}
.dsBtn{appearance:none;border:1px solid var(--line);background:#fff;color:#0f172a;border-radius:16px;padding:14px 16px;font-weight:700;cursor:pointer;width:100%}
.dsBtn:hover{background:#f8fafc}
.dsBtnPrimary{background:var(--accent);border-color:var(--accent);color:var(--accentText)}
.dsBtnPrimary:hover{filter:brightness(.97)}
.dsBtnWide{width:100%}
.dsFilterList{display:flex;flex-wrap:wrap;gap:10px}
.dsChip{appearance:none;border:1px solid var(--line);background:var(--soft);padding:10px 12px;border-radius:999px;font-weight:700;cursor:pointer}
.dsChip.is-active{background:#dbeafe;border-color:#93c5fd;color:#1d4ed8}
.dsStickyActions{position:sticky;bottom:max(12px,env(safe-area-inset-bottom));padding-top:4px;background:linear-gradient(180deg,rgba(255,255,255,0),#fff 18%)}
.dsPrivacy{color:var(--muted);max-width:660px}
body.dragging-point{user-select:none}
@media (max-width: 980px){
  .dsGridUpload,.dsEditorGrid,.dsResultGrid,.dsSeoCols{grid-template-columns:1fr}
}
@media (max-width: 640px){
  .dsApp{padding:16px 12px 110px}
  .dsStep{font-size:.92rem;padding:10px}
  .dsStep span{width:26px;height:26px}
  .dsUploadCard,.dsFeatureCard,.dsSeoCard,.dsCanvasCard,.dsControlCard,.dsResultPreview,.dsResultControls,.dsFaq{padding:16px;border-radius:20px}
  .dsCanvasWrap{padding:10px;min-height:320px}
  .dsEditorHead,.dsResultHead{display:grid}
  .dsControls{position:relative}
  .dsStickyActions{position:fixed;left:0;right:0;bottom:0;padding:12px;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-top:1px solid var(--line);z-index:40}
  .dsStickyActions .dsBtn{max-width:calc(100vw - 24px);margin:0 auto}
}