/* ========== 简洁资讯风格模板 ========== */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;background:#f5f6f8;color:#333;line-height:1.7;font-size:15px}
a{color:#1a66cc;text-decoration:none}
a:hover{color:#0d47a1}
img{max-width:100%}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.site-header{background:#fff;border-bottom:1px solid #e5e7eb;position:sticky;top:0;z-index:99}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:58px;flex-wrap:wrap;padding:8px 0;gap:4px 8px}
.logo{font-size:20px;font-weight:700;color:#111;letter-spacing:1px}
.logo span{font-size:11px;color:#9ca3af;font-weight:400;margin-left:8px}
.menu{display:flex;list-style:none;flex-wrap:wrap;justify-content:flex-end}
.menu li{margin-left:2px}
.menu a{display:block;padding:8px 14px;border-radius:6px;color:#555;font-size:14px}
.menu a:hover,.menu a.on{color:#1a66cc;background:#eef4ff}
.menu .nav-more{position:relative}
.menu .nav-more-btn{cursor:pointer;user-select:none}
.nav-dropdown{display:none;position:absolute;top:calc(100% + 6px);right:0;background:#fff;border:1px solid #e5e7eb;border-radius:10px;min-width:320px;padding:10px;box-shadow:0 16px 40px rgba(0,0,0,.12);z-index:120;grid-template-columns:1fr 1fr;gap:2px 10px}
.nav-dropdown a{color:#555;padding:7px 12px;border-radius:6px;font-size:14px;white-space:nowrap}
.nav-dropdown a:hover{color:#1a66cc;background:#eef4ff}
.nav-more:hover .nav-dropdown,.nav-more:focus-within .nav-dropdown{display:grid}
.menu-toggle{display:none;cursor:pointer;color:#111;font-size:20px}
.hero{background:#fff;border-bottom:1px solid #e5e7eb;padding:34px 0}
.hero h1{font-size:26px;color:#111;margin-bottom:8px}
.hero p{color:#666;max-width:720px}
.hero .tags{margin-top:12px}
.hero .tag{display:inline-block;background:#f3f4f6;color:#555;border-radius:16px;padding:2px 12px;font-size:12px;margin:0 6px 6px 0}
.section{margin:28px 0}
.section-title{font-size:18px;color:#111;border-left:4px solid #1a66cc;padding-left:10px;margin-bottom:16px;font-weight:700}
.list{background:#fff;border:1px solid #e5e7eb;border-radius:8px;overflow:hidden}
.list-item{display:flex;align-items:center;padding:14px 18px;border-bottom:1px solid #f0f0f0;gap:14px}
.list-item:last-child{border-bottom:0}
.list-item:hover{background:#fafbff}
.list-item .no{font-size:18px;font-weight:700;color:#1a66cc;width:30px;text-align:center;flex-shrink:0}
.list-item h3{font-size:15px;flex:1}
.list-item h3 a{color:#222}
.list-item h3 a:hover{color:#1a66cc}
.list-item .meta{font-size:12px;color:#999;flex-shrink:0}
.cols{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.col-card{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:16px;text-align:center;transition:.2s}
.col-card:hover{border-color:#1a66cc}
.col-card h3{font-size:15px;color:#222;margin-bottom:4px}
.col-card p{font-size:12px;color:#999}
.crumb{font-size:13px;color:#888;padding:16px 0 0}
.crumb a{color:#1a66cc}
.article-wrap{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:28px;margin:18px 0}
.article-wrap h1{font-size:24px;color:#111;line-height:1.5;margin-bottom:10px}
.article-meta{font-size:13px;color:#999;border-bottom:1px solid #f0f0f0;padding-bottom:14px;margin-bottom:18px}
.article-meta span{margin-right:16px}
.article-content{font-size:16px;color:#333}
.article-content p{margin-bottom:16px}
.article-content h2,.article-content h3{color:#111;margin:20px 0 10px}
.related{margin-top:24px;padding-top:16px;border-top:1px solid #f0f0f0}
.related h3{color:#111;font-size:15px;margin-bottom:10px}
.related li{padding:6px 0}
.related li a{color:#555}
.related li a:hover{color:#1a66cc}
.column-head{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:20px;margin:18px 0}
.column-head h1{font-size:22px;color:#111;margin-bottom:6px}
.column-head p{color:#666;font-size:14px}
.site-footer{background:#fff;border-top:1px solid #e5e7eb;margin-top:36px;padding:24px 0 16px;font-size:13px;color:#888}
.friend-title{color:#555;margin-bottom:8px;font-weight:700}
.friend-links a{display:inline-block;color:#888;margin:0 12px 6px 0}
.friend-links a:hover{color:#1a66cc}
.footer-line{border-top:1px solid #f0f0f0;margin-top:14px;padding-top:12px;text-align:center}
.pager{display:flex;justify-content:center;margin:22px 0}
.pager a,.pager span{display:inline-block;padding:6px 12px;margin:0 3px;border-radius:6px;background:#fff;border:1px solid #e5e7eb;color:#555}
.pager .cur{background:#1a66cc;color:#fff;border-color:#1a66cc}
.pager a:hover{border-color:#1a66cc;color:#1a66cc}
@media(max-width:900px){.cols{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){
  .cols{grid-template-columns:1fr}
  .menu{display:none;position:absolute;top:58px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 16px;border-bottom:1px solid #e5e7eb}
  .menu.show{display:flex}
  .menu .nav-dropdown{display:grid;position:static;box-shadow:none;border:none;background:transparent;padding:2px 0 6px 12px;min-width:0}
  .menu-toggle{display:block}
  .hero h1{font-size:21px}
  .list-item{flex-wrap:wrap}
  .article-wrap{padding:16px}
}

/* 广告位 */
.ad-block{max-width:100%;margin:14px auto;text-align:center;overflow:hidden}
.ad-block img,.ad-block iframe{max-width:100%;vertical-align:top}
.ad-header_top{margin-top:0}
.ad-article_top{margin-bottom:8px}
.ad-article_bottom{margin-top:8px}