*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","微软雅黑","PingFang SC","Helvetica Neue",Arial,sans-serif;font-size:14px;color:#222;background:#f5f5f7;line-height:1.8}
a{color:#c8161d;text-decoration:none;transition:color .2s}
a:hover{color:#e83232}
ul,ol{list-style:none}
img{max-width:100%;display:block}
.wrap{width:1200px;margin:0 auto}

/* Top Bar */
.top-bar{background:#1a1a1a;color:#999;height:32px;line-height:32px;font-size:12px}
.top-bar .wrap{display:flex;justify-content:space-between;align-items:center}
.top-bar a{color:#999;margin:0 8px}
.top-bar a:hover{color:#e83232}

/* Header */
.header{background:#fff;padding:20px 0;border-bottom:3px solid #c8161d}
.header .wrap{display:flex;align-items:center;justify-content:space-between}
.logo img{max-height:48px;width:auto}
.search-box{display:flex;border:2px solid #c8161d;border-radius:4px;overflow:hidden}
.search-box input{width:280px;padding:8px 14px;border:none;outline:none;font-size:14px}
.search-box button{background:#c8161d;color:#fff;border:none;padding:0 22px;font-size:14px;cursor:pointer;font-weight:600}
.search-box button:hover{background:#a01015}

/* Main Nav */
.main-nav{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.06);position:sticky;top:0;z-index:100}
.main-nav .wrap{display:flex;align-items:center;height:48px}
.main-nav a{padding:0 20px;line-height:48px;font-size:16px;font-weight:500;color:#333;position:relative}
.main-nav a.active{color:#c8161d;font-weight:700}
.main-nav a.active::after{content:'';position:absolute;bottom:0;left:20px;right:20px;height:3px;background:#c8161d}
.main-nav a:hover{color:#c8161d}
.main-nav .nav-divider{color:#ddd;margin:0 4px}

/* Breadcrumb */
.breadcrumb{padding:16px 0;font-size:13px;color:#999}
.breadcrumb a{color:#999}
.breadcrumb a:hover{color:#c8161d}
.breadcrumb .sep{margin:0 6px;color:#ccc}

/* Article Layout */
.article-wrap{padding:0 0 40px}
.article-wrap .wrap{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}
.article-main{background:#fff;border-radius:8px;padding:40px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.article-header{border-bottom:1px solid #eee;padding-bottom:20px;margin-bottom:28px}
.article-header h1{font-size:26px;line-height:1.4;color:#1a1a1a;font-weight:700;margin-bottom:16px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:13px;color:#999}
.article-meta .source a{color:#c8161d}
.article-meta .divider{color:#ddd}
.article-meta .word-count{color:#bbb}

/* Article Content */
.article-content{font-size:16px;line-height:1.9;color:#333}
.article-content p{margin-bottom:18px;text-indent:2em}
.article-content img{margin:20px auto;border-radius:4px;max-width:100%;height:auto}
.article-content h2,.article-content h3{margin:28px 0 14px;font-weight:700;color:#1a1a1a}
.article-content h2{font-size:20px}
.article-content h3{font-size:18px}
.article-content strong{color:#1a1a1a}
.article-content blockquote{border-left:4px solid #c8161d;padding:12px 20px;margin:20px 0;background:#fafafa;color:#666;font-size:14px}

/* Article Nav */
.article-nav{display:flex;justify-content:space-between;padding:24px 0 0;border-top:1px solid #eee;margin-top:28px;gap:20px}
.article-nav .nav-item{font-size:14px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-nav .prev{text-align:left}
.article-nav .next{text-align:right}
.article-nav .nav-item a{color:#444}
.article-nav .nav-item a:hover{color:#c8161d}
.article-nav .label{color:#bbb;font-size:12px;margin-right:4px}

/* Related Section */
.related-section{margin-top:28px}
.related-section h3{font-size:18px;font-weight:700;color:#1a1a1a;margin-bottom:14px;padding-left:12px;border-left:4px solid #c8161d;line-height:18px}
.related-list{display:grid;grid-template-columns:1fr 1fr;gap:8px 20px}
.related-list li{padding:6px 0;display:flex;align-items:center;gap:8px}
.related-list li::before{content:'';width:4px;height:4px;border-radius:50%;background:#c8161d;flex-shrink:0}
.related-list li a{font-size:14px;color:#444;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.related-list li a:hover{color:#c8161d}
.related-list .cat-tag{font-size:11px;color:#c8161d;background:#fff5f5;padding:1px 6px;border-radius:2px;flex-shrink:0}

/* Sidebar */
.sidebar > div{background:#fff;border-radius:8px;padding:20px;margin-bottom:20px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.sidebar h3{font-size:16px;font-weight:700;color:#1a1a1a;margin-bottom:14px;padding-left:10px;border-left:3px solid #c8161d;line-height:16px}
.hot-list li{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid #f5f5f5}
.hot-list li:last-child{border-bottom:none}
.hot-list .rank{width:20px;height:20px;border-radius:4px;background:#eee;color:#999;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.hot-list li:nth-child(1) .rank{background:#c8161d;color:#fff}
.hot-list li:nth-child(2) .rank{background:#e8552e;color:#fff}
.hot-list li:nth-child(3) .rank{background:#e89832;color:#fff}
.hot-list li a{font-size:13px;color:#444;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.5}
.hot-list li a:hover{color:#c8161d}

.keyword-cloud{display:flex;flex-wrap:wrap;gap:8px}
.keyword-cloud a{display:inline-block;padding:5px 12px;background:#f5f5f7;border-radius:4px;font-size:12px;color:#666}
.keyword-cloud a:hover{background:#c8161d;color:#fff}

/* Footer */
.footer{background:#f5f5f5;color:#666;padding:40px 0 24px;margin-top:20px;border-top:3px solid #c8161d}
.footer .wrap{text-align:center}
.footer-logo{margin-bottom:16px;display:flex;justify-content:center}
.footer-nav{margin-bottom:20px}
.footer-nav a{color:#555;margin:0 6px;font-size:13px}
.footer-nav a:hover{color:#c8161d}
.footer-nav .divider{color:#ccc;margin:0 4px}
.footer .info{font-size:12px;color:#999;line-height:2}
.footer .beian a{color:#999;font-size:13px;text-decoration:none}
.footer .beian a:hover{color:#c8161d}
.footer .disclaimer{margin-top:6px;color:#888;font-size:12px}

@media(max-width:1240px){.wrap{width:96%}.article-wrap .wrap{grid-template-columns:1fr}.related-list{grid-template-columns:1fr}}