/* ===== Article Page ONLY ===== */

.article-page{padding:26px 0 80px}

.article-layout{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:18px;
  align-items:start;
}

/* 阅读进度条 */
.read-progress{
  position:fixed;
  left:0; top:0;
  height:3px;
  width:0%;
  background: linear-gradient(90deg, rgba(45,140,255,.9), rgba(45,140,255,.35));
  z-index:99;
}

/* Hero */
.article-hero{
  margin-top:16px;
  padding:18px;
  border-radius: 22px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  box-shadow: 0 16px 48px rgba(0,0,0,.22);
}
.article-title{
  margin:0;
  font-size:34px;
  line-height:1.18;
  letter-spacing:.2px;
  font-weight:900;
}
.article-sub{
  margin:10px 0 0;
  color: rgba(255,255,255,.66);
  font-size:14px;
  line-height:1.9;
}
.article-meta{
  margin-top:12px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  color: rgba(255,255,255,.52);
  font-size:12px;
}
.article-meta i{color: rgba(45,140,255,.95); margin-right:6px}
.meta-tag{
  display:inline-flex; align-items:center;
  padding:8px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
}

.article-cover{
  margin:16px 0 0;
  border-radius: 20px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.02);
}
.article-cover img{
  width:100%;
  height:auto;
  display:block;
  aspect-ratio: 16/8;
  object-fit:cover;
  filter:saturate(.95) brightness(.92);
}

/* TOC */
.toc-card{
  margin:14px 0 14px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  border-radius: 18px;
  box-shadow: 0 12px 35px rgba(0,0,0,.22);
  overflow:hidden;
}
.toc-hd{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 14px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.toc-title{
  font-weight:900;
  font-size:16px;
}
.toc-toggle{
  width:38px;height:38px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  color: rgba(255,255,255,.85);
  cursor:pointer;
  transition:.2s ease;
}
.toc-toggle:hover{transform:translateY(-1px); background: rgba(255,255,255,.06)}
.toc-toggle i{font-size:18px}
.toc{
  padding:10px 14px 14px;
  display:flex;
  flex-direction:column;
  gap:8px;
  max-height: 420px;
  overflow:auto;
}
.toc.is-collapsed{display:none}
.toc a{
  display:block;
  padding:10px 10px;
  border-radius: 12px;
  border:1px solid transparent;
  color: rgba(255,255,255,.70);
  font-size:13px;
  line-height:1.5;
  transition:.18s ease;
}
.toc a:hover{
  background: rgba(255,255,255,.04);
  color: rgba(255,255,255,.92);
}
.toc a.is-active{
  border-color: rgba(45,140,255,.25);
  background: rgba(45,140,255,.10);
  color: rgba(255,255,255,.95);
}
.toc a[data-level="3"]{padding-left:22px; opacity:.96}

/* 正文排版（SEO友好：真实 h2/h3） */
.article-content{
  margin-top:14px;
  padding:18px;
  border-radius: 22px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  box-shadow: 0 16px 48px rgba(0,0,0,.20);
}
.article-content h2{
  margin:22px 0 10px;
  font-size:20px;
  font-weight:900;
  letter-spacing:.2px;
}
.article-content h3{
  margin:18px 0 10px;
  font-size:16px;
  font-weight:900;
  color: rgba(255,255,255,.88);
}
.article-content p{
  margin:10px 0;
  color: rgba(255,255,255,.70);
  line-height:2.0;
  font-size:14px;
}
.article-content ul,
.article-content ol{
  margin:10px 0 10px 22px;
  color: rgba(255,255,255,.70);
  line-height:1.9;
  font-size:14px;
}
.article-content a{
  color: rgba(45,140,255,.92);
  text-decoration:none;
  font-weight:700;
}
.article-content a:hover{filter:brightness(1.1)}
.article-content img{
  max-width:100%;
  height:auto;
  display:block;
  margin:14px auto;
  border-radius: 18px;
  border:1px solid rgba(255,255,255,.10);
  box-shadow: 0 14px 45px rgba(0,0,0,.25);
}

/* 声明 */
.article-statement{margin-top:14px}
.statement-card{
  border-radius: 22px;
  border:1px solid rgba(45,140,255,.18);
  background: linear-gradient(90deg, rgba(45,140,255,.12), rgba(255,255,255,.02));
  padding:16px;
}
.statement-title{margin:0; font-size:16px; font-weight:900}
.statement-text{
  margin:10px 0 0;
  color:rgba(255,255,255,.68);
  line-height:1.9;
  font-size:13px;
}


/* 相关推荐 */
.section-related{padding-top:44px}
.related-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.rel-card{
  border-radius: 22px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
  box-shadow: 0 12px 35px rgba(0,0,0,.20);
  transition:.2s ease;
}
.rel-card:hover{transform:translateY(-2px); border-color:rgba(255,255,255,.14)}
.rel-thumb{aspect-ratio: 16/10; overflow:hidden}
.rel-thumb img{width:100%; height:100%; object-fit:cover; filter:saturate(.95) brightness(.92); transform:scale(1.01)}
.rel-bd{padding:12px 12px 14px}
.rel-title{font-weight:900; font-size:13px; line-height:1.35}
.rel-meta{
  margin-top:8px;
  color:rgba(255,255,255,.45);
  font-size:12px;
  display:flex;
  gap:8px;
  align-items:center;
}

/* 右侧栏（复用列表页风格） */
.article-right{
  position:sticky;
  top:92px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.side-card{
  border-radius: 22px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  padding:14px;
  box-shadow: 0 16px 48px rgba(0,0,0,.22);
}
.side-hd{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  margin-bottom:10px;
}
.side-hd h3{margin:0; font-size:14px; font-weight:900}
.side-sub{color:rgba(255,255,255,.45); font-size:12px}
.side-list{display:flex; flex-direction:column; gap:10px}
.side-item{
  display:flex;
  gap:10px;
  align-items:center;
  padding:10px;
  border-radius: 18px;
  border:1px solid rgba(255,255,255,.06);
  background: rgba(255,255,255,.02);
  transition:.2s ease;
}
.side-item:hover{border-color:rgba(255,255,255,.12); background: rgba(255,255,255,.04)}
.side-thumb{
  width:56px; height:56px;
  border-radius: 16px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  flex:0 0 auto;
}
.side-thumb img{width:100%; height:100%; object-fit:cover}
.side-info{min-width:0}
.side-title{
  font-weight:900;
  font-size:13px;
  line-height:1.35;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.side-meta{
  margin-top:6px;
  color:rgba(255,255,255,.45);
  font-size:12px;
  display:flex;
  gap:8px;
  align-items:center;
}

/* 右侧 CTA */
.side-cta{
  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));
  padding:14px;
}
.side-cta-tt{font-weight:900; font-size:14px}
.side-cta-dd{margin-top:8px; color:rgba(255,255,255,.66); font-size:13px; line-height:1.8}
.side-cta-btns{margin-top:12px; display:flex; gap:10px; flex-wrap:wrap}

/* 响应式 */
@media (max-width: 1100px){
  .article-layout{grid-template-columns: 1fr}
  .article-right{position:static}
  .related-grid{grid-template-columns: 1fr 1fr}
}
@media (max-width: 640px){
  .article-title{font-size:28px}
  .related-grid{grid-template-columns: 1fr}
  .nav-card{grid-template-columns: 1fr}
}
/* ===== Article meta tag pill (keep original span) ===== */
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  color: rgba(255,255,255,.65);
  font-size:13px;
}

.article-meta i{color:rgba(45,140,255,.9);}

.article-meta .meta-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid rgba(45,140,255,.22);
  background: rgba(45,140,255,.10);
  color: rgba(255,255,255,.82);
  font-weight:800;
  line-height:1;
}
/* ===== TOC numbering ===== */
.toc-list{
  display:flex;
  flex-direction:column;
  gap:10px;
}

.toc-list a{
  display:flex;
  gap:10px;
  align-items:flex-start;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
  color: rgba(255,255,255,.78);
  font-size:13px;
  line-height:1.55;
}

.toc-list a:hover{border-color:rgba(255,255,255,.14); background:rgba(255,255,255,.05)}
.toc-list a.is-active{border-color:rgba(45,140,255,.35); background:rgba(45,140,255,.10);}

.toc-num{
  min-width: 44px;
  font-weight:900;
  color: rgba(255,255,255,.65);
}

.toc-text{flex:1}

/* H3 缩进 */
.toc-list a[data-level="3"]{
  padding-left:22px;
}
.article-nav .nav-card{
  display:grid;
  grid-template-columns: 1fr 1fr;
  border-radius: 18px;
  overflow:hidden;
}

.article-nav .nav-col{
  padding: 18px 22px;
  min-height: 96px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap: 10px;
}

.article-nav .nav-col + .nav-col{
  border-left: 1px solid rgba(255,255,255,.06);
}

.article-nav .nav-label{
  font-size: 14px;
  opacity: .65;
  letter-spacing: .5px;
}

.article-nav .nav-text{
  display:block;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.35;
  color: rgba(255,255,255,.92);

  /* 关键：避免长标题把布局挤乱 */
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-nav .nav-text.is-empty{
  font-weight: 500;
  opacity: .55;
}

.article-nav a.nav-text:hover{
  opacity: .9;
  text-decoration: none;
}