.pp-sfa-card{
  --pp-sfa-radius:14px;
  --pp-sfa-shadow:0 8px 24px rgba(0,0,0,.08);
  --pp-sfa-border:1px solid rgba(0,0,0,.08);
  --pp-sfa-bg:#fff;
  padding:18px 22px;
  margin:24px 0;
  background:var(--pp-sfa-bg);
  border:var(--pp-sfa-border);
  border-radius:var(--pp-sfa-radius);
  box-shadow:var(--pp-sfa-shadow);
}
.pp-sfa-title{text-align:center;font-weight:700;font-size:1.05rem;margin:4px 0 14px;}
.pp-sfa-form textarea{box-sizing:border-box;width:100%;min-height:130px;resize:vertical;padding:12px 14px;border:1px solid rgba(0,0,0,.15);border-radius:10px;outline:none;font:inherit;background:#fff;}
.pp-sfa-form textarea:focus{border-color:#0a66c2;box-shadow:0 0 0 3px rgba(10,102,194,.15);}
.pp-sfa-form textarea.pp-sfa-readonly,.pp-sfa-form textarea[readonly]{background:#f6f7fb;color:#222;}
.pp-sfa-btn{display:block;width:100%;margin-top:14px;padding:12px 16px;border-radius:10px;border:1px solid transparent;background:#0a66c2;color:#fff;font-weight:700;cursor:pointer;}
.pp-sfa-btn.pp-sfa-disabled{opacity:.7;cursor:not-allowed;}
.pp-sfa-result{margin-top:10px;font-size:.95em;}
.pp-sfa-answer{margin-top:14px;padding:12px 14px;border:1px dashed rgba(0,0,0,.15);border-radius:10px;background:rgba(10,102,194,.06);}
.pp-sfa-answer__title{font-weight:700;margin-bottom:6px;font-size:.95rem;}
.pp-sfa-answer__body{line-height:1.7;white-space:pre-wrap;}
.pp-sfa-operator{margin-top:14px;padding:13px 15px;border-left:4px solid #646970;background:rgba(100,105,112,.07);border-radius:4px 10px 10px 4px;}
.pp-sfa-operator__label{font-weight:700;margin-bottom:6px;}
.pp-sfa-operator__body{line-height:1.7;white-space:pre-wrap;}
.pp-sfa-hp{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important;}
@media (prefers-color-scheme:dark){
  .pp-sfa-card{--pp-sfa-bg:#161616;--pp-sfa-border:1px solid rgba(255,255,255,.08);--pp-sfa-shadow:0 8px 24px rgba(0,0,0,.5);}
  .pp-sfa-form textarea{background:#1b1b1b;color:#eaeaea;border-color:rgba(255,255,255,.14);}
  .pp-sfa-form textarea.pp-sfa-readonly,.pp-sfa-form textarea[readonly]{background:#1e2530;color:#dfe6f3;}
  .pp-sfa-answer{background:rgba(10,102,194,.15);border-color:rgba(255,255,255,.18);}
  .pp-sfa-operator{background:rgba(255,255,255,.06);border-left-color:#a7aaad;}
}