/* ===== Single / About Page ===== */
.page-single{padding:26px 0 80px;}
.single-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:18px;
  align-items:start;
}

.single-article{padding:22px;}
.single-hd{padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.06);}
.single-title{margin:0;font-size:34px;font-weight:900;letter-spacing:.4px;line-height:1.15;}
.single-lead{margin:12px 0 0;color:rgba(255,255,255,.68);line-height:1.9;font-size:14px;}
.single-meta{margin-top:12px;display:flex;flex-wrap:wrap;gap:14px;color:rgba(255,255,255,.55);font-size:12px;}
.single-meta i{color:rgba(45,140,255,.95);margin-right:6px;}

.toc-card{
  margin-top:16px;
  padding:14px 14px 10px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
}
.toc-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.toc-title{font-weight:900;}
.toc-toggle{
  width:38px;height:38px;border-radius:12px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.03);
  color:rgba(255,255,255,.85);
  cursor:pointer;
}
.toc-nav{margin-top:10px;display:flex;flex-direction:column;gap:8px;}
.toc-nav a{
  display:flex;gap:10px;align-items:flex-start;
  padding:10px 10px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.06);
  background:rgba(255,255,255,.02);
  color:rgba(255,255,255,.72);
  font-size:13px;
  line-height:1.6;
}
.toc-nav a:hover{border-color:rgba(255,255,255,.12);color:rgba(255,255,255,.92);}
.toc-nav a.is-active{
  border-color:rgba(45,140,255,.28);
  background:rgba(45,140,255,.10);
  color:rgba(255,255,255,.95);
}
.toc-num{
  min-width:32px;
  height:22px;
  border-radius:999px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(45,140,255,.25);
  background:rgba(45,140,255,.10);
  color:rgba(45,140,255,.95);
  font-weight:900;
  font-size:12px;
  margin-top:2px;
}
.toc-sub{padding-left:16px;}
.toc-fold .toc-nav{display:none;}

.single-body{
  padding-top:18px;
  color:rgba(255,255,255,.78);
  line-height:2.0;
  font-size:14px;
}
.single-body h2{
  margin:26px 0 10px;
  font-size:18px;
  font-weight:900;
  color:rgba(255,255,255,.92);
  position:relative;
  padding-left:14px;
}
.single-body h2:before{
  content:"";
  position:absolute;left:0;top:6px;
  width:4px;height:14px;border-radius:4px;
  background:rgba(45,140,255,.95);
  box-shadow:0 0 0 4px rgba(45,140,255,.10);
}
.single-body h3{
  margin:18px 0 8px;
  font-size:15px;
  font-weight:900;
  color:rgba(255,255,255,.88);
}
.single-body p{margin:10px 0;}
.single-body ul{margin:10px 0 10px 18px;}
.single-body li{margin:6px 0;color:rgba(255,255,255,.72);}
.single-body a{color:rgba(45,140,255,.95);font-weight:700;}
.single-body img{
  margin:14px 0;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 18px 55px rgba(0,0,0,.35);
}

.single-declare{
  margin-top:18px;
  padding:16px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
}
.single-declare h2{margin:0 0 10px;font-size:16px;font-weight:900;}
.single-declare ul{margin:0 0 0 18px;}
.single-declare li{color:rgba(255,255,255,.68);line-height:1.9;margin:6px 0;}

.single-cta{
  margin-top:18px;
  padding:16px;
  border-radius:22px;
  border:1px solid rgba(45,140,255,.18);
  background:linear-gradient(90deg, rgba(45,140,255,.14), rgba(255,255,255,.02));
  display:flex;
  justify-content:space-between;
  gap:14px;
  align-items:center;
}
.single-cta-tt{font-weight:900;font-size:16px;}
.single-cta-dd{margin-top:6px;color:rgba(255,255,255,.68);font-size:13px;line-height:1.85;}
.single-cta-right{display:flex;gap:10px;flex-wrap:wrap;}

.single-side{position:sticky;top:92px;display:flex;flex-direction:column;gap:14px;}
.side-card{padding:16px;}
.side-hd{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;}
.side-tt{font-weight:900;}
.side-sub{color:rgba(255,255,255,.45);font-size:12px;}

.side-item{
  display:flex;
  gap:12px;
  padding:12px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.06);
  background:rgba(255,255,255,.02);
  margin-top:10px;
}
.side-item:hover{border-color:rgba(255,255,255,.12);background:rgba(255,255,255,.03);}
.side-thumb{
  width:54px;height:54px;border-radius:14px;overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
  flex:0 0 auto;
}
.side-thumb img{width:100%;height:100%;object-fit:cover;}
.side-title{font-weight:900;font-size:13px;line-height:1.4;}
.side-meta{margin-top:6px;color:rgba(255,255,255,.48);font-size:12px;display:flex;gap:8px;align-items:center;}

.side-links{display:flex;flex-direction:column;gap:10px;}
.side-link{
  padding:10px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.06);
  background:rgba(255,255,255,.02);
  color:rgba(255,255,255,.70);
  font-size:13px;
}
.side-link i{color:rgba(45,140,255,.95);margin-right:6px;}
.side-link:hover{border-color:rgba(255,255,255,.12);color:rgba(255,255,255,.92);}

.side-help{
  display:flex;
  gap:12px;
  align-items:center;
  border-radius:22px;
  border:1px solid rgba(45,140,255,.18);
  background:rgba(45,140,255,.10);
}
.side-help .help-ic{
  width:44px;height:44px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(45,140,255,.20);
  border:1px solid rgba(45,140,255,.25);
}
.side-help .help-ic i{color:rgba(255,255,255,.95);font-size:18px;}
.side-help .help-tt{font-weight:900;}
.side-help .help-dd{margin-top:4px;color:rgba(255,255,255,.75);font-size:12px;line-height:1.6;}

@media (max-width: 1100px){
  .single-grid{grid-template-columns:1fr;}
  .single-side{position:static;}
  .single-title{font-size:30px;}
}
@media (max-width: 520px){
  .single-title{font-size:26px;}
  .single-cta{flex-direction:column;align-items:flex-start;}
}