/* ==========================================================================
   资讯列表页 / 新闻详情页
   ========================================================================== */

/* ---------- 页头 ---------- */
.page-head{
  background:linear-gradient(180deg,#f5f8fd 0%,#fbfcfe 100%);
  border-bottom:1px solid var(--line);
  padding:52px 0 44px;
}
.page-head .crumb{
  font-size:13px;color:#9aa1ab;letter-spacing:.02em;margin-bottom:14px;
}
.page-head .crumb a{color:#9aa1ab;}
.page-head .crumb a:hover{color:var(--navy);}
.page-head .crumb span{margin:0 7px;color:#c8cdd5;}
.page-head h1{
  font-size:34px;color:#1b2733;font-weight:700;letter-spacing:.02em;line-height:1.35;
}
.page-head .page-sub{
  margin-top:10px;font-size:13px;color:#a9afb8;letter-spacing:.12em;
}

/* ---------- 列表页 ---------- */
.news-page{
  display:grid;grid-template-columns:1fr 300px;gap:52px;
  padding:56px 0 76px;align-items:start;
}
.news-page-main{min-width:0;}

.list-item{
  display:block;padding:26px 0;border-bottom:1px solid #eef1f5;
  transition:transform .25s ease;
}
.list-item:first-child{padding-top:0;}
.list-item:hover{transform:translateX(3px);}
.list-item .li-top{display:flex;align-items:baseline;gap:12px;}
.list-item .li-cat{
  flex-shrink:0;font-size:12px;color:var(--navy);
  background:rgba(30,80,174,.08);border-radius:3px;padding:2px 8px;
  transform:translateY(-1px);
}
.list-item h2{
  font-size:19px;font-weight:600;color:#26303c;line-height:1.6;
  transition:color .2s ease;
}
.list-item:hover h2{color:var(--navy);}
.list-item .li-meta{margin-top:8px;font-size:13px;color:#a4abb5;display:flex;gap:16px;}
.list-item .li-desc{
  margin-top:10px;font-size:14px;color:#8b939d;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-empty{padding:60px 0;text-align:center;color:#a5abb4;}

/* 侧栏 */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:8px;
  padding:24px 22px;margin-bottom:20px;
}
.side-card h3{
  font-size:15px;color:#2c3542;font-weight:600;margin-bottom:16px;
  padding-bottom:12px;border-bottom:1px solid #f0f3f7;
}
.side-card p{font-size:13.5px;color:#8b939d;line-height:1.9;}
.side-card .side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:#5a6373;padding:10px 0;border-bottom:1px dashed #eef1f5;
}
.side-card .side-links a:last-child{border-bottom:0;}
.side-card .side-links a:hover{color:var(--navy);}
.side-card .side-links em{font-style:normal;font-size:12px;color:#b3b9c2;}

/* ---------- 详情页：正文 + 分类侧栏两栏 ---------- */
.article-page{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:52px;
  padding:52px 0 72px;align-items:start;
}
.article-page .article-wrap{max-width:none;margin:0;padding:0;}

/* 侧栏当前分类高亮 */
.side-card .side-links a.is-active{color:var(--navy);font-weight:600;}
.side-card .side-links a.is-active em{color:var(--navy);opacity:.7;}

/* ---------- 详情页 ---------- */
.article-wrap{max-width:860px;margin:0 auto;padding:52px 0 72px;}
.article-head{border-bottom:1px solid var(--line);padding-bottom:26px;}
.article-head .a-cat{
  display:inline-block;font-size:12px;color:var(--navy);
  background:rgba(30,80,174,.08);border-radius:3px;padding:3px 10px;
}
.article-head h1{
  margin-top:16px;font-size:34px;line-height:1.45;color:#1b2733;font-weight:700;
  letter-spacing:.01em;
}
.article-meta{
  margin-top:18px;display:flex;flex-wrap:wrap;gap:20px;
  font-size:13.5px;color:#9aa1ab;
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}

.article-body{margin-top:34px;font-size:16.5px;line-height:2.05;color:#39424e;}
.article-body p{margin:0 0 22px;text-align:justify;}
.article-body h3{
  margin:38px 0 18px;font-size:20px;font-weight:700;color:#1b2733;
  padding-left:14px;border-left:4px solid var(--navy);line-height:1.5;
}
.article-body h3:first-child{margin-top:0;}

.article-source{
  margin-top:36px;padding:18px 20px;background:#f7f9fc;border-radius:6px;
  font-size:13.5px;color:#8b939d;line-height:1.9;
}
.article-source a{color:var(--navy);border-bottom:1px solid rgba(30,80,174,.3);}
.article-source a:hover{border-bottom-color:var(--navy);}

.article-foot{
  margin-top:34px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#6b7480;
}
.back-link:hover{color:var(--navy);}

.related{margin-top:56px;padding-top:38px;border-top:1px solid var(--line);}
.related h2{font-size:20px;color:#1b2733;font-weight:700;margin-bottom:8px;}
.related h2 + p{font-size:12px;color:#a9afb8;letter-spacing:.1em;margin-bottom:22px;}
.related-item{
  display:flex;align-items:baseline;justify-content:space-between;gap:20px;
  padding:16px 0;border-bottom:1px dashed #eef1f5;
}
.related-item h3{font-size:15.5px;color:#3a4450;font-weight:500;line-height:1.6;transition:color .2s;}
.related-item:hover h3{color:var(--navy);}
.related-item em{font-style:normal;font-size:13px;color:#aab0b9;flex-shrink:0;}

.article-error{padding:80px 0;text-align:center;color:#8b939d;}
.article-error h1{font-size:22px;color:#2c3542;margin-bottom:12px;}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .news-page{grid-template-columns:1fr;gap:34px;padding:40px 0 56px;}
  .page-head{padding:40px 0 34px;}
  .page-head h1{font-size:28px;}
  .article-wrap{padding:38px 0 54px;}
  .article-head h1{font-size:26px;}
  .article-body{font-size:16px;line-height:1.95;}
  .article-body h3{font-size:18px;margin:30px 0 14px;}
}
@media (max-width:640px){
  .page-head h1{font-size:23px;}
  .article-head h1{font-size:22px;}
  .article-body{font-size:15.5px;}
  .list-item h2{font-size:17px;}
  .list-item .li-top{flex-direction:column;gap:8px;}
  .list-item .li-cat{align-self:flex-start;}
}

/* ---------- 详情页两栏 · 响应式 ---------- */
@media (max-width:960px){
  .article-page{grid-template-columns:1fr;gap:32px;padding:38px 0 54px;}
  .article-page .article-aside{
    display:grid;grid-template-columns:1fr 1fr;gap:18px;
  }
  .article-page .article-aside .side-card{margin-bottom:0;}
}
@media (max-width:640px){
  .article-page .article-aside{grid-template-columns:1fr;}
}