:root {
  --red:#b30718;
  --red-dark:#8f0817;
  --gold:#d69a2d;
  --ink:#20242b;
  --muted:#69717c;
  --line:#e3e7ec;
  --soft:#f6f8fb;
  --blue:#123d72;
  --shadow:0 10px 30px rgba(27,39,58,.07);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;
  color:var(--ink);
  background:#fff;
  font-size:16px;
  line-height:1.8;
}
a{color:inherit;text-decoration:none}
img{display: block;max-width: min(80%, 700px) !important;height: auto !important;display: block;margin: 20px auto;}
.container{width:min(1200px,calc(100% - 48px));margin:0 auto}

/* 顶部导航 */
.topbar{
  height:72px;background:#fff;border-bottom:1px solid #eef0f3;
  display:flex;align-items:center;position:sticky;top:0;z-index:30;
}
.topbar .inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand img{width:205px}
nav{display:flex;align-items:center;gap:36px;font-size:15px;font-weight:600;color:#303746}
nav a{padding:24px 0;white-space:nowrap;position:relative}
nav a.active{color:var(--red)}
nav a.active::after{
  content:"";position:absolute;left:10%;right:10%;bottom:15px;height:2px;
  background:var(--red);border-radius:2px;
}
nav a:hover{color:var(--red)}
.consult-btn{
  background:#dda035;color:#fff;padding:11px 24px;border-radius:4px;
  font-size:15px;font-weight:700;box-shadow:0 4px 10px rgba(221,160,53,.22)
}

/* 面包屑 */
.crumb{
  height:44px;background:#f5f6f8;color:#606774;
  display:flex;align-items:center;font-size:14px;
}
.crumb .container{display:flex;gap:9px;align-items:center;white-space:nowrap;overflow:hidden}
.crumb b{color:#8f96a1;font-weight:500}
.crumb span:last-child{overflow:hidden;text-overflow:ellipsis}

/* 文章头部 */
.article-header{
  background:linear-gradient(180deg,#f8fafc 0%,#fff 100%);
  border-bottom:1px solid #edf0f3;
}
.article-header .container{padding:42px 0 34px}
.article-type{
  display:inline-block;color:var(--red);font-size:13px;font-weight:700;
  padding:5px 10px;border:1px solid #e4c7cb;background:#fff;border-radius:3px;margin-bottom:14px
}
.article-header h1{
  max-width:980px;margin:0;
  font-size:38px;line-height:1.42;letter-spacing:-.5px;color:#1f2329;
}
.article-subtitle{
  max-width:900px;margin:13px 0 0;
  font-size:17px;line-height:1.9;color:#59616c;
}
.article-meta{
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;
  margin-top:20px;font-size:13px;color:#858c96;
}
.article-meta .source{color:#4e5660;font-weight:600}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#b6bbc3}

/* 主体布局 */
.article-main{padding:32px 0 54px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,820px) 320px;
  gap:48px;
  align-items:start;
}
.article-content{min-width:0}
.cover{
  border-radius:10px;overflow:hidden;margin-bottom:28px;
  box-shadow:0 8px 28px rgba(26,38,56,.08);
}
.cover img{width:100%;height:430px;object-fit:cover}
.cover-caption{
  padding:8px 2px 0;font-size:12px;color:#9298a1;text-align:center
}

/* 正文 */
.prose{
  font-size:17px;
  line-height:2;
  color:#2d333b;
}
.prose p{margin:0 0 22px}
.prose h2{
  font-size:24px;line-height:1.55;margin:36px 0 16px;
  padding-left:13px;position:relative;color:#20252c
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.25em;width:4px;height:1.25em;
  background:var(--red);border-radius:3px
}
.prose h3{font-size:20px;line-height:1.6;margin:28px 0 12px}
.prose strong{font-weight:700;color:#22272e}
.prose ul{margin:0 0 22px;padding-left:24px}
.prose li{margin:8px 0}
.prose blockquote{
  margin:28px 0;padding:20px 24px;
  background:#f7f9fb;border-left:4px solid var(--red);
  color:#4a525d;font-size:16px;line-height:1.9
}
.prose .lead{
  font-size:18px;line-height:1.95;color:#343a43
}
.inline-image{
  margin:28px 0;border-radius:8px;overflow:hidden
}
.inline-image img{width:100%;height:360px;object-fit:cover}
.image-note{font-size:12px;color:#949aa3;text-align:center;margin-top:7px}

/* 文章底部 */
.article-end{
  margin-top:38px;padding-top:24px;border-top:1px solid #e6e9ed
}
.tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.tags b{font-size:13px;margin-right:4px}
.tags a{
  font-size:12px;padding:5px 9px;background:#f4f6f8;border:1px solid #e4e8ec;border-radius:3px;color:#606872
}
.share-row{
  margin-top:22px;display:flex;justify-content:space-between;align-items:center;gap:20px
}
.share-text{font-size:13px;color:#7c838d}
.share-actions{display:flex;gap:8px}
.share-actions a{
  width:34px;height:34px;border:1px solid #dfe3e7;border-radius:50%;
  display:grid;place-items:center;font-size:12px;color:#606872;background:#fff
}
.prev-next{
  margin-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:14px
}
.pn-card{
  border:1px solid #e2e6ea;border-radius:7px;padding:16px 18px;background:#fff
}
.pn-card span{display:block;font-size:11px;color:#9aa0a8;margin-bottom:5px}
.pn-card b{display:block;font-size:14px;line-height:1.6}
.pn-card:hover{border-color:#d4d9df;box-shadow:0 6px 16px rgba(28,39,56,.04)}

/* 右侧栏 */
.sidebar{display:flex;flex-direction:column;gap:18px;position:sticky;top:96px}
.side-box{
  border:1px solid #e2e6ea;border-radius:9px;background:#fff;overflow:hidden
}
.side-box-title{
  padding:15px 17px 11px;font-size:16px;font-weight:800;border-bottom:1px solid #eef0f2
}
.side-box-title::before{
  content:"";display:inline-block;width:4px;height:16px;background:var(--red);
  border-radius:2px;margin-right:9px;vertical-align:-2px
}
.toc{padding:8px 16px 12px}
.toc a{
  display:block;padding:9px 0;border-bottom:1px solid #eef0f2;
  font-size:13px;line-height:1.6;color:#59616b
}
.toc a:last-child{border-bottom:0}
.toc a:hover{color:var(--red)}

.recommend-list{padding:2px 16px 12px}
.rec-item{
  display:grid;grid-template-columns:92px 1fr;gap:11px;padding:12px 0;border-bottom:1px solid #eef0f2
}
.rec-item:last-child{border-bottom:0}
.rec-item img{width:92px;height:64px;object-fit:cover;border-radius:4px}
.rec-item b{font-size:12px;line-height:1.55;display:block}
.rec-item time{display:block;font-size:10px;color:#9aa0a8;margin-top:5px}

.consult-box{
  padding:21px 18px;background:linear-gradient(145deg,#b30718,#8f0817);color:#fff;border-radius:9px
}
.consult-box h3{margin:0 0 7px;font-size:18px}
.consult-box p{
  margin:0 0 14px;font-size:12px;line-height:1.75;color:rgba(255,255,255,.84)
}
.consult-box a{
  display:block;text-align:center;background:#fff;color:var(--red);
  border-radius:4px;padding:9px 12px;font-size:13px;font-weight:700
}

/* 相关文章 */
.related-section{margin-top:48px;padding-top:30px;border-top:1px solid #e4e7eb}
.related-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.related-head h2{margin:0;font-size:24px}
.related-head a{font-size:13px;color:var(--red);font-weight:700}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.related-card{
  border:1px solid #e2e6ea;border-radius:8px;overflow:hidden;background:#fff
}
.related-card img{width:100%;height:145px;object-fit:cover}
.related-body{padding:13px 14px 14px}
.related-body .cat{font-size:11px;color:var(--red);font-weight:700;margin-bottom:5px}
.related-body h3{font-size:15px;line-height:1.6;margin:0}
.related-body time{display:block;font-size:10px;color:#9ba1a9;margin-top:9px}

/* footer */
footer{background:linear-gradient(90deg,#242832,#1e222b);color:#fff;padding:24px 0 18px}
.foot-grid{display:grid;grid-template-columns:1.1fr 1.8fr .55fr;gap:30px;align-items:start}
.foot-brand{font-family:Georgia,serif;letter-spacing:1.6px;font-size:13px;line-height:1.1}
.foot-brand small{display:block;font-family:Arial,sans-serif;letter-spacing:0;margin-top:12px;line-height:1.7;font-size:10px;color:#dfe2e7}
.foot-links{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;font-size:11px;padding-top:9px}
.qr{text-align:center;font-size:9px}
.qr-box{width:63px;height:63px;background:
  linear-gradient(90deg,#fff 8px,transparent 8px) 0 0/16px 16px,
  linear-gradient(#fff 8px,transparent 8px) 0 0/16px 16px,#111;
  border:5px solid #fff;margin:4px auto 5px}
.copyright{font-size:9px;color:#aeb4be;margin-top:12px;border-top:1px solid rgba(255,255,255,.08);padding-top:9px}

@media(max-width:1050px){
  .container{width:min(100% - 36px,1200px)}
  nav{display:none}
  .article-layout{grid-template-columns:1fr}
  .sidebar{position:static;display:grid;grid-template-columns:1fr 1fr}
  .consult-box{grid-column:1/-1}
  .cover img{height:400px}
}
@media(max-width:760px){
  .container{width:min(100% - 24px,1200px)}
  .article-header .container{padding:30px 0 26px}
  .article-header h1{font-size:30px}
  .article-subtitle{font-size:15px}
  .article-main{padding-top:22px}
  .cover img{height:250px}
  .prose{font-size:16px;line-height:1.9}
  .prose .lead{font-size:17px}
  .inline-image img{height:230px}
  .sidebar{grid-template-columns:1fr}
  .prev-next{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .related-card{display:grid;grid-template-columns:130px 1fr}
  .related-card img{height:100%;min-height:105px}
  .foot-grid{grid-template-columns:1fr}
  .foot-links{grid-template-columns:repeat(3,1fr)}
}

/* ===== v2：资讯详情页标题区与整体排版优化 ===== */

/* 标题区收紧信息层级，去掉标签和摘要后的空白 */
.article-header .container {
  padding: 48px 0 32px;
}

.article-header h1 {
  max-width: 1000px;
  font-size: 40px;
  line-height: 1.38;
  letter-spacing: -0.7px;
  margin: 0;
}

.article-meta {
  margin-top: 18px;
  gap: 18px;
  font-size: 13px;
}

/* 主体首屏节奏优化 */
.article-main {
  padding-top: 36px;
}

.article-layout {
  grid-template-columns: minmax(0, 830px) 320px;
  gap: 50px;
}

.cover {
  margin-bottom: 30px;
  border-radius: 10px;
}

.cover img {
  height: 445px;
}

/* 正文阅读优化 */
.prose {
  font-size: 17px;
  line-height: 2;
  color: #2f353d;
}

.prose .lead {
  font-size: 18px;
  line-height: 2;
  color: #343a43;
  margin-bottom: 26px;
}

.prose h2 {
  margin-top: 40px;
  margin-bottom: 17px;
  font-size: 25px;
}

.prose p {
  margin-bottom: 24px;
}

/* 侧栏与正文顶部更协调 */
.sidebar {
  top: 96px;
}

.side-box-title {
  font-size: 17px;
}

/* 标签和上下篇稍微加强层级 */
.article-end {
  margin-top: 42px;
  padding-top: 26px;
}

.pn-card {
  padding: 18px 20px;
}

.pn-card b {
  font-size: 15px;
}

/* 相关文章与正文保持统一视觉 */
.related-section {
  margin-top: 52px;
  padding-top: 32px;
}

.related-head h2 {
  font-size: 25px;
}

.related-card img {
  height: 155px;
}

.related-body h3 {
  font-size: 16px;
}

@media(max-width:1050px) {
  .article-header h1 {
    font-size: 36px;
  }

  .article-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .cover img {
    height: 400px;
  }
}

@media(max-width:760px) {
  .article-header .container {
    padding: 30px 0 24px;
  }

  .article-header h1 {
    font-size: 30px;
    line-height: 1.45;
  }

  .article-meta {
    margin-top: 14px;
  }

  .article-main {
    padding-top: 24px;
  }

  .cover img {
    height: 250px;
  }
}


/* ===== v3：缩短面包屑与标题距离 ===== */
.article-header .container {
  padding-top: 24px;
  padding-bottom: 30px;
}

.article-header h1 {
  margin-top: 0;
}

@media(max-width:760px) {
  .article-header .container {
    padding-top: 18px;
    padding-bottom: 22px;
  }
}


/* ===== v4：SEO 标题层级优化 ===== */

/* 侧栏模块标题使用 h3，重置浏览器默认 margin */
.side-box-title {
  margin: 0;
  padding: 15px 17px 11px;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 800;
  border-bottom: 1px solid #eef0f2;
}

/* 底部“相关文章推荐”使用 h3 */
.related-head h3 {
  margin: 0;
  font-size: 25px;
  line-height: 1.45;
  font-weight: 800;
}

@media(max-width:760px) {
  .related-head h3 {
    font-size: 22px;
  }
}