/* ===== 全局重置与基础样式 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:"Noto Serif SC","Source Han Serif SC","SimSun","FangSong",serif;color:#222;background:#fff;line-height:1.8}
a{color:#222;text-decoration:none;transition:color .2s}
a:hover{color:#D32F2F}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-family:"Noto Sans SC","Source Han Sans SC","Microsoft YaHei","SimHei",sans-serif;font-weight:700;line-height:1.4;color:#111}

/* ===== 布局容器 ===== */
.container{max-width:1200px;margin:0 auto;padding:0 15px}
.row{display:flex;flex-wrap:wrap;margin:0 -10px}
.col-main{flex:0 0 66.666%;max-width:66.666%;padding:0 10px}
.col-side{flex:0 0 33.333%;max-width:33.333%;padding:0 10px}
.col-full{flex:0 0 100%;max-width:100%;padding:0 10px}

/* ===== 顶部导航 ===== */
.site-header{background:#fff;border-bottom:3px solid #D32F2F;padding:10px 0}
.header-top{display:flex;align-items:center;justify-content:space-between;padding:8px 0}
.site-logo{font-size:28px;font-weight:900;color:#D32F2F;font-family:"Noto Sans SC",sans-serif}
.site-logo span{color:#222}
.header-date{font-size:13px;color:#888}
.main-nav{background:#222;padding:0}
.main-nav ul{display:flex;flex-wrap:wrap}
.main-nav li{position:relative}
.main-nav a{display:block;padding:10px 18px;color:#fff;font-size:14px;font-weight:500;transition:background .2s}
.main-nav a:hover,.main-nav a.active{background:#D32F2F;color:#fff}

/* ===== 滚动快讯 ===== */
.breaking-ticker{background:#D32F2F;color:#fff;padding:6px 0;overflow:hidden;white-space:nowrap}
.breaking-ticker .label{display:inline-block;background:#fff;color:#D32F2F;font-weight:700;padding:2px 12px;margin-right:15px;font-size:13px}
.ticker-wrap{display:inline-block;animation:ticker 30s linear infinite}
.ticker-wrap span{margin-right:40px;font-size:13px}
@keyframes ticker{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* ===== 头条新闻 ===== */
.top-story{position:relative;margin:20px 0;border-bottom:2px solid #D32F2F;padding-bottom:20px}
.top-story-img{width:100%;height:400px;object-fit:cover;border-radius:2px}
.top-story-content{padding:15px 0}
.top-story-content h2{font-size:28px;margin-bottom:10px;line-height:1.3}
.top-story-content h2 a:hover{color:#D32F2F}
.top-story-content .lead{font-size:16px;color:#555;line-height:1.7}
.top-story-meta{font-size:12px;color:#999;margin-top:8px}

/* ===== 新闻列表 ===== */
.news-list{margin:20px 0}
.news-list .section-title{font-size:20px;border-left:4px solid #D32F2F;padding-left:12px;margin-bottom:15px}
.news-item{display:flex;padding:12px 0;border-bottom:1px solid #eee}
.news-item-img{flex:0 0 120px;height:80px;margin-right:12px;overflow:hidden;border-radius:2px}
.news-item-img img{width:100%;height:100%;object-fit:cover}
.news-item-text h3{font-size:15px;font-weight:600;margin-bottom:4px;line-height:1.4}
.news-item-text h3 a:hover{color:#D32F2F}
.news-item-text p{font-size:13px;color:#777;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item-text .meta{font-size:11px;color:#aaa;margin-top:4px}

/* ===== 赛事中心Tab ===== */
.event-hub{margin:25px 0;background:#F2F2F2;padding:20px;border-radius:2px}
.event-hub .section-title{font-size:20px;border-left:4px solid #D32F2F;padding-left:12px;margin-bottom:15px}
.tab-nav{display:flex;border-bottom:2px solid #ddd;margin-bottom:15px}
.tab-nav button{background:none;border:none;padding:8px 20px;font-size:14px;cursor:pointer;font-weight:600;color:#666;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .2s}
.tab-nav button.active,.tab-nav button:hover{color:#D32F2F;border-bottom-color:#D32F2F}
.tab-content{display:none}
.tab-content.active{display:block}
.event-card{display:flex;align-items:center;justify-content:space-between;background:#fff;padding:12px 15px;margin-bottom:8px;border-radius:2px;border-left:3px solid #D32F2F}
.event-card .teams{font-size:14px;font-weight:600}
.event-card .vs{color:#D32F2F;margin:0 8px;font-weight:700}
.event-card .time{font-size:12px;color:#888}

/* ===== 专家观点 ===== */
.expert-section{margin:25px 0}
.expert-section .section-title{font-size:20px;border-left:4px solid #D32F2F;padding-left:12px;margin-bottom:15px}
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.expert-card{background:#F2F2F2;padding:15px;text-align:center;border-radius:2px}
.expert-card img{width:80px;height:80px;border-radius:50%;object-fit:cover;margin:0 auto 10px}
.expert-card h4{font-size:14px;margin-bottom:4px}
.expert-card p{font-size:12px;color:#777;line-height:1.5}
.expert-card a{display:inline-block;margin-top:8px;font-size:12px;color:#D32F2F}

/* ===== 专题报道 ===== */
.special-reports{margin:25px 0}
.special-reports .section-title{font-size:20px;border-left:4px solid #D32F2F;padding-left:12px;margin-bottom:15px}
.special-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
.special-card{position:relative;overflow:hidden;border-radius:2px;height:200px}
.special-card img{width:100%;height:100%;object-fit:cover}
.special-card .overlay{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.8));padding:15px;color:#fff}
.special-card .overlay h3{font-size:16px;color:#fff}
.special-card .overlay p{font-size:12px;color:#ddd;margin-top:4px}

/* ===== 图集视频 ===== */
.media-section{margin:25px 0}
.media-section .section-title{font-size:20px;border-left:4px solid #D32F2F;padding-left:12px;margin-bottom:15px}
.media-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.media-card{position:relative;overflow:hidden;border-radius:2px;height:150px}
.media-card img{width:100%;height:100%;object-fit:cover}
.media-card .caption{position:absolute;bottom:0;left:0;right:0;background:rgba(0,0,0,.6);color:#fff;padding:6px 8px;font-size:11px}

/* ===== 热门话题 ===== */
.trending{margin:25px 0;background:#F2F2F2;padding:20px;border-radius:2px}
.trending .section-title{font-size:20px;border-left:4px solid #D32F2F;padding-left:12px;margin-bottom:15px}
.trending-list li{display:flex;align-items:center;padding:10px 0;border-bottom:1px solid #ddd}
.trending-list li:last-child{border-bottom:none}
.trending-list .rank{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;background:#D32F2F;color:#fff;font-weight:700;font-size:13px;border-radius:50%;margin-right:12px;flex-shrink:0}
.trending-list li:nth-child(n+4) .rank{background:#888}
.trending-list .topic{font-size:14px;font-weight:600}
.trending-list .count{margin-left:auto;font-size:12px;color:#999}

/* ===== 按项目浏览 ===== */
.browse-sports{margin:25px 0}
.browse-sports .section-title{font-size:20px;border-left:4px solid #D32F2F;padding-left:12px;margin-bottom:15px}
.sports-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
.sport-tag{background:#F2F2F2;text-align:center;padding:15px 10px;border-radius:2px;font-size:14px;font-weight:600;transition:all .2s;border-bottom:2px solid transparent}
.sport-tag:hover{background:#D32F2F;color:#fff;border-bottom-color:#D32F2F}

/* ===== 侧边栏 ===== */
.sidebar-widget{background:#F2F2F2;padding:18px;margin-bottom:20px;border-radius:2px}
.sidebar-widget .widget-title{font-size:16px;border-left:3px solid #D32F2F;padding-left:10px;margin-bottom:12px}
.sidebar-widget ul li{padding:8px 0;border-bottom:1px solid #ddd;font-size:13px}
.sidebar-widget ul li:last-child{border-bottom:none}
.sidebar-widget ul li a:hover{color:#D32F2F}

/* ===== 文章页 ===== */
.article-page{padding:25px 0}
.article-header{margin-bottom:20px;border-bottom:1px solid #eee;padding-bottom:15px}
.article-header h1{font-size:26px;line-height:1.4;margin-bottom:10px}
.article-meta{font-size:13px;color:#888}
.article-meta span{margin-right:15px}
.article-meta a{color:#D32F2F}
.article-body{font-size:16px;line-height:2;color:#333}
.article-body p{margin-bottom:18px;text-indent:2em}
.article-body h2,.article-body h3{margin:25px 0 15px;padding-left:12px;border-left:3px solid #D32F2F}
.article-body img{margin:20px auto;border-radius:2px}
.article-body blockquote{background:#F2F2F2;border-left:4px solid #D32F2F;padding:15px 20px;margin:20px 0;font-style:italic;color:#555}
.article-tags{margin-top:25px;padding-top:15px;border-top:1px solid #eee}
.article-tags span{display:inline-block;background:#F2F2F2;padding:4px 12px;margin:4px;font-size:12px;border-radius:2px}
.related-news{margin-top:30px;padding-top:20px;border-top:2px solid #eee}
.related-news h3{font-size:18px;margin-bottom:15px;border-left:4px solid #D32F2F;padding-left:12px}

/* ===== 作者信息栏 ===== */
.author-box{display:flex;align-items:flex-start;background:#F2F2F2;padding:20px;margin:25px 0;border-radius:2px}
.author-box img{width:80px;height:80px;border-radius:50%;object-fit:cover;margin-right:15px;flex-shrink:0}
.author-box .info h4{font-size:16px;margin-bottom:4px}
.author-box .info p{font-size:13px;color:#666;line-height:1.6}
.author-box .info a{color:#D32F2F;font-size:13px}

/* ===== 作者介绍页 ===== */
.author-profile{text-align:center;padding:30px 0;border-bottom:1px solid #eee;margin-bottom:25px}
.author-profile img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 15px}
.author-profile h1{font-size:24px;margin-bottom:8px}
.author-profile .title{font-size:14px;color:#D32F2F;margin-bottom:10px}
.author-profile .bio{max-width:700px;margin:0 auto;font-size:15px;color:#555;line-height:1.8}
.author-articles{margin-top:25px}
.author-articles h2{font-size:20px;border-left:4px solid #D32F2F;padding-left:12px;margin-bottom:15px}

/* ===== 面包屑 ===== */
.breadcrumb{padding:10px 0;font-size:13px;color:#888;border-bottom:1px solid #f0f0f0;margin-bottom:20px}
.breadcrumb a{color:#666}
.breadcrumb a:hover{color:#D32F2F}
.breadcrumb span{margin:0 6px;color:#ccc}

/* ===== 页脚 ===== */
.site-footer{background:#222;color:#ccc;padding:35px 0 20px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px;margin-bottom:25px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid #444}
.footer-col ul li{padding:4px 0}
.footer-col ul li a{color:#aaa;font-size:13px}
.footer-col ul li a:hover{color:#D32F2F}
.footer-col p{font-size:13px;color:#aaa;line-height:1.7}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid #444;font-size:12px;color:#777}
.footer-social a{display:inline-block;margin:0 8px;color:#aaa;font-size:14px}
.footer-social a:hover{color:#D32F2F}

/* ===== 数据统计表格 ===== */
.data-table{width:100%;border-collapse:collapse;margin:20px 0}
.data-table th{background:#D32F2F;color:#fff;padding:10px 12px;font-size:13px;text-align:left}
.data-table td{padding:10px 12px;border-bottom:1px solid #eee;font-size:13px}
.data-table tr:hover{background:#F2F2F2}

/* ===== APP下载页 ===== */
.app-page{text-align:center;padding:50px 0}
.app-page h1{font-size:28px;margin-bottom:15px}
.app-page p{font-size:16px;color:#555;max-width:600px;margin:0 auto 25px}
.app-btn{display:inline-block;background:#D32F2F;color:#fff;padding:12px 35px;font-size:16px;border-radius:4px;margin:8px;transition:background .2s}
.app-btn:hover{background:#b71c1c;color:#fff}
.app-features{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin-top:40px;text-align:center}
.app-features .feature h3{font-size:16px;margin-bottom:8px}
.app-features .feature p{font-size:13px;color:#777}

/* ===== 隐私政策等静态页 ===== */
.static-page{padding:30px 0}
.static-page h1{font-size:26px;margin-bottom:20px;border-bottom:2px solid #D32F2F;padding-bottom:10px}
.static-page h2{font-size:20px;margin:25px 0 12px;color:#D32F2F}
.static-page p{margin-bottom:15px;line-height:1.9;color:#444}

/* ===== 响应式 ===== */
@media(max-width:992px){
  .col-main,.col-side{flex:0 0 100%;max-width:100%}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .special-grid{grid-template-columns:repeat(2,1fr)}
  .media-grid{grid-template-columns:repeat(2,1fr)}
  .sports-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .main-nav ul{flex-wrap:wrap}
  .main-nav a{padding:8px 12px;font-size:13px}
  .top-story-img{height:220px}
  .top-story-content h2{font-size:20px}
  .expert-grid{grid-template-columns:1fr 1fr}
  .special-grid{grid-template-columns:1fr}
  .media-grid{grid-template-columns:repeat(2,1fr)}
  .sports-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .app-features{grid-template-columns:1fr}
  .article-header h1{font-size:20px}
  .row{flex-direction:column}
}
@media(max-width:480px){
  .site-logo{font-size:22px}
  .header-top{flex-direction:column;text-align:center}
  .expert-grid{grid-template-columns:1fr}
  .media-grid{grid-template-columns:1fr}
  .sports-grid{grid-template-columns:1fr 1fr}
  .tab-nav{flex-wrap:wrap}
  .tab-nav button{padding:6px 12px;font-size:12px}
}