.pft {
  --pft-brand:#2563eb; --pft-ink:#1d4ed8; --pft-soft:#eaf1ff;
  --pft-bg:#fff; --pft-surface:#f7f9fb; --pft-line:#e4e8ee;
  --pft-text:#111722; --pft-muted:#5a6473; --pft-faint:#8a93a3;
  --pft-ok:#15803d; --pft-pdf:#dc2626; --pft-r:14px; --pft-r-sm:10px;
}
.pft, .pft * { box-sizing:border-box; }
.pft { color:var(--pft-text); }
.pft-tool {
  background:var(--pft-bg); border:1px solid var(--pft-line); border-radius:18px;
  padding:20px; box-shadow:0 1px 2px rgba(16,24,40,.04),0 2px 6px rgba(16,24,40,.05);
  max-width:760px; margin:0 auto;
}
.pft-drop {
  border:2px dashed #c7d0db; border-radius:var(--pft-r); padding:38px 20px;
  text-align:center; cursor:pointer; transition:border-color .15s, background .15s;
}
.pft-drop:hover, .pft-drop:focus, .pft-drop.drag { border-color:var(--pft-brand); background:var(--pft-soft); outline:none; }
.pft-drop .pft-ic { color:var(--pft-brand); }
.pft-drop .pft-t { font-size:17px; font-weight:600; margin:10px 0 2px; }
.pft-link { color:var(--pft-ink); text-decoration:underline; cursor:pointer; }
.pft-hint { font-size:13px; color:var(--pft-faint); margin:0; }

.pft-panelhead { display:flex; justify-content:space-between; align-items:center; margin:18px 0 12px; }
.pft-panelhead .pft-count { font-weight:600; }
.pft-ghost { background:none; border:none; color:var(--pft-muted); font:inherit; font-size:14px; cursor:pointer; padding:4px; }
.pft-ghost:hover { color:var(--pft-pdf); }

.pft-thumbs { list-style:none; margin:0 0 18px; padding:0; display:grid; gap:10px; }
.pft-thumb { display:flex; align-items:center; gap:12px; background:var(--pft-surface); border:1px solid var(--pft-line); border-radius:var(--pft-r-sm); padding:8px 10px; }
.pft-thumb .pft-num { font-size:12px; color:var(--pft-faint); width:20px; text-align:center; flex:none; }
.pft-thumb img { width:46px; height:46px; object-fit:cover; border-radius:8px; background:#fff; flex:none; }
.pft-thumb .pft-fileic { width:40px; height:46px; display:grid; place-items:center; color:var(--pft-pdf); flex:none; }
.pft-thumb .pft-nm { flex:1; min-width:0; font-size:14px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.pft-thumb .pft-meta { font-size:12px; color:var(--pft-faint); }
.pft-acts { display:flex; gap:4px; flex:none; }
.pft-iconbtn { width:32px; height:32px; display:grid; place-items:center; border:1px solid var(--pft-line); background:#fff; border-radius:8px; cursor:pointer; color:var(--pft-muted); font-size:15px; line-height:1; }
.pft-iconbtn:hover { color:var(--pft-text); border-color:#cdd5e0; }
.pft-iconbtn:disabled { opacity:.35; cursor:default; }

.pft-options { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-bottom:16px; }
.pft-options label { display:flex; flex-direction:column; gap:5px; font-size:13px; color:var(--pft-muted); font-weight:500; }
.pft-options select { font:inherit; font-size:15px; padding:9px 10px; border:1px solid var(--pft-line); border-radius:var(--pft-r-sm); background:#fff; color:var(--pft-text); }

.pft-primary { display:inline-flex; align-items:center; justify-content:center; gap:8px; width:100%; background:var(--pft-brand); color:#fff; border:none; border-radius:var(--pft-r-sm); padding:13px 18px; font:inherit; font-size:16px; font-weight:600; cursor:pointer; transition:background .15s; text-decoration:none; }
.pft-primary:hover { background:var(--pft-ink); color:#fff; }
.pft-primary:disabled { opacity:.6; cursor:default; }
.pft-primary svg { flex:none; }

.pft-status { text-align:center; font-size:14px; color:var(--pft-muted); margin-top:12px; }
.pft-result { margin-top:14px; display:grid; gap:12px; }
.pft-okline { display:flex; align-items:center; gap:8px; color:var(--pft-ok); font-weight:600; justify-content:center; }
.pft-privacy { display:flex; align-items:center; gap:7px; justify-content:center; font-size:13px; color:var(--pft-faint); margin:16px 0 0; }
.pft-privacy svg { color:var(--pft-ok); flex:none; }
.pft-error { padding:14px 16px; border:1px solid var(--pft-line); border-radius:var(--pft-r-sm); color:var(--pft-pdf); background:#fff; }

.pft-fileinfo { display:flex; align-items:center; gap:8px; font-size:14px; color:var(--pft-text); background:var(--pft-surface); border:1px solid var(--pft-line); border-radius:var(--pft-r-sm); padding:10px 12px; margin-bottom:14px; }
.pft-fileinfo b { font-weight:600; }
.pft-field { display:flex; flex-direction:column; gap:6px; margin-bottom:16px; font-size:14px; color:var(--pft-muted); font-weight:500; }
.pft-input { font:inherit; font-size:15px; padding:10px 12px; border:1px solid var(--pft-line); border-radius:var(--pft-r-sm); background:#fff; color:var(--pft-text); }
.pft-input:focus { outline:none; border-color:var(--pft-brand); }
.pft-hint-sm { font-size:12px; color:var(--pft-faint); font-weight:400; }
.pft-out { display:grid; grid-template-columns:repeat(auto-fill,minmax(130px,1fr)); gap:12px; margin:6px 0 16px; }
.pft-page { border:1px solid var(--pft-line); border-radius:10px; padding:8px; background:#fff; text-align:center; }
.pft-page canvas { width:100%; height:auto; border:1px solid var(--pft-line); border-radius:6px; display:block; }
.pft-page .pft-pl { font-size:12px; color:var(--pft-faint); margin:6px 0; }
.pft-page button { font:inherit; font-size:13px; padding:6px 10px; border:1px solid var(--pft-line); background:#fff; border-radius:8px; cursor:pointer; color:var(--pft-ink); width:100%; }
.pft-page button:hover { border-color:var(--pft-brand); }

.pft-wc-stats { display:grid; grid-template-columns:repeat(4,1fr); gap:10px; margin-bottom:14px; }
.pft-wc-stat { background:var(--pft-soft); border-radius:var(--pft-r-sm); padding:14px 8px; text-align:center; }
.pft-wc-num { display:block; font-size:26px; font-weight:600; color:var(--pft-ink); line-height:1.2; }
.pft-wc-lbl { font-size:13px; color:var(--pft-muted); }
.pft-wc-input { width:100%; font:inherit; font-size:16px; line-height:1.7; padding:14px; border:1px solid var(--pft-line); border-radius:var(--pft-r); background:#fff; color:var(--pft-text); resize:vertical; min-height:200px; }
.pft-wc-input:focus { outline:none; border-color:var(--pft-brand); }
.pft-wc-bar { display:flex; gap:8px; margin:10px 0 16px; }
.pft-wc-bar .pft-ghost { border:1px solid var(--pft-line); border-radius:8px; padding:8px 14px; color:var(--pft-muted); }
.pft-wc-bar .pft-ghost:hover { color:var(--pft-text); border-color:#cdd5e0; }
.pft-wc-detail { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:0 20px; }
.pft-wc-detail > div { display:flex; justify-content:space-between; padding:10px 0; border-bottom:1px solid var(--pft-line); font-size:14px; }
.pft-wc-dl { color:var(--pft-muted); }
.pft-wc-dv { font-weight:600; }
.pft-wc-freq { margin-top:16px; display:flex; flex-wrap:wrap; gap:8px; align-items:center; }
.pft-wc-freq-title { width:100%; font-size:14px; color:var(--pft-muted); font-weight:600; margin-bottom:2px; }
.pft-wc-chip { background:var(--pft-surface); border:1px solid var(--pft-line); border-radius:999px; padding:5px 12px; font-size:14px; }
.pft-wc-chip b { color:var(--pft-ink); }

/* ---- Polish: tool interactions ---- */
.pft-result { animation:pf-slidein .35s ease; }
@keyframes pf-slidein { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:none; } }
.pft-okline svg path { stroke-dasharray:26; stroke-dashoffset:26; animation:pf-draw .5s ease .08s forwards; }
@keyframes pf-draw { to { stroke-dashoffset:0; } }
.pft-drop { transition:border-color .15s ease, background .15s ease, transform .15s ease; }
.pft-drop.drag { transform:scale(1.012); }
.pft-primary { transition:background .15s ease, transform .1s ease; }
.pft-primary:active { transform:scale(.98); }
.pft-iconbtn { transition:transform .1s ease, border-color .15s ease, color .15s ease; }
.pft-iconbtn:active { transform:scale(.92); }
@media (max-width:560px) { .pft-wc-stats { grid-template-columns:repeat(2,1fr); } }

@media (max-width:560px) { .pft-options { grid-template-columns:1fr; } }