/* 商洛学院团委网站 V3 - 宣传部沉稳红风格（修订版） */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,"Microsoft YaHei","PingFang SC","Helvetica Neue",sans-serif;color:#222;background:#f4f4f4;font-size:14px;line-height:1.6}
a{color:#8a0716;text-decoration:none}
a:hover{color:#5a0410;text-decoration:underline}
img{max-width:100%;display:block}
.wrap{width:100%;max-width:100%;margin:0 auto;padding:0 30px}

/* 顶部通栏 */
.topbar{background:linear-gradient(180deg,#8a0716 0%,#5a0410 100%);padding:18px 0}
.topbar .wrap{display:flex;align-items:center;gap:18px}
.emblem-group{display:flex;align-items:center;gap:12px}
.emblem{width:64px;height:64px;border-radius:50%;background:#fff;padding:4px;box-shadow:0 2px 6px rgba(0,0,0,0.2)}
.site-title{color:#fff}
.site-title h1{font-size:28px;font-weight:700;letter-spacing:2px;margin-bottom:4px}
.site-title p{font-size:12px;letter-spacing:1px;opacity:0.85}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:20px;color:#fff;font-size:13px}
.topbar-right a{color:#fff;opacity:0.9}
.topbar-right a:hover{opacity:1;text-decoration:none}
.search-mini{display:flex;align-items:center;background:rgba(255,255,255,0.15);border-radius:3px;padding:4px 10px}
.search-mini input{border:none;background:transparent;color:#fff;outline:none;width:140px;font-size:13px}
.search-mini input::placeholder{color:rgba(255,255,255,0.6)}
.search-mini button{border:none;background:transparent;color:#fff;cursor:pointer;font-size:14px}

/* 主导航 */
.mainnav{background:#9f0b18;border-bottom:2px solid #7a0716}
.mainnav ul{list-style:none;display:flex;justify-content:center}
.mainnav li a{display:block;padding:13px 28px;color:#fff;font-size:15px;font-weight:500;transition:background 0.2s}
.mainnav li a:hover,.mainnav li.active a{background:#7a0716;text-decoration:none}

/* 校园风景 — 与并排行保持一致的内外间距 */
.section{margin:20px 0}
.card{background:#fff;border-radius:4px;box-shadow:0 1px 4px rgba(0,0,0,0.08);padding:24px;margin-bottom:20px}
.section-head{display:flex;align-items:center;gap:10px;margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid #f0f0f0}
.section-icon{width:28px;height:28px;background:#8a0716;border-radius:3px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:700}
.section-head h2{font-size:20px;font-weight:700;color:#222;letter-spacing:1px}
.section-head .more{margin-left:auto;color:#8a0716;font-size:13px}

/* 首页焦点区 — 统一 padding 让卡片边界对齐，负 margin 让图片撑满 */
.home-focus{display:flex;gap:20px;margin:20px 0}
.focus-main{flex:2.85;min-width:0;padding:34px !important}
.focus-side{flex:1.15;min-width:280px;padding-left:24px;padding-right:34px}
/* 负 margin 让焦点图突破 padding 撑满卡片，配合 overflow:hidden 裁切圆角 */
.focus-img{position:relative;height:calc(100% + 68px);width:calc(100% + 68px);margin:-34px;border-radius:0;overflow:hidden;background:#8a0716}
.home-focus .focus-main{border-radius:4px;border-right:none;box-shadow:none}
.home-focus .focus-side{border-radius:4px;box-shadow:none}
.focus-img{position:relative;height:380px;border-radius:4px;overflow:hidden;background:#8a0716}
.focus-img .slide{position:absolute;inset:0;transition:opacity 0.8s}
.focus-img img{width:100%;height:100%;object-fit:cover}
.focus-caption{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,0.75));padding:40px 20px 16px;color:#fff}
.focus-caption a{color:#fff;font-size:16px;font-weight:600}
.focus-caption a:hover{color:#ffd;text-decoration:none}
.focus-dots{position:absolute;bottom:12px;right:20px;display:flex;gap:6px}
.focus-dots span{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,0.5);cursor:pointer}
.focus-dots span.active{background:#fff}

/* 通知公告列表 */
.notice-list{list-style:none}
.notice-list li{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px dashed #eee}
.notice-list li:last-child{border-bottom:none}
.notice-date{flex-shrink:0;width:48px;height:48px;background:#8a0716;color:#fff;border-radius:3px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:700;line-height:1.1}
.notice-date .d{font-size:18px}
.notice-date .m{font-size:11px;opacity:0.85}
.notice-title{flex:1;font-size:14px;line-height:1.5}
.notice-title a{color:#222}
.notice-title a:hover{color:#8a0716;text-decoration:none}
.notice-new{color:#8a0716;font-size:11px;font-weight:700;margin-left:6px}

/* 团学快讯/工作列表 */
.work-list{list-style:none}
.work-list li{padding:10px 0;border-bottom:1px dashed #eee;display:flex;align-items:center;gap:8px}
.work-list li:last-child{border-bottom:none}
.work-list li::before{content:"";width:6px;height:6px;background:#8a0716;border-radius:50%;flex-shrink:0}
.work-list li a{color:#333;font-size:14px;flex:1}
.work-list li a:hover{color:#8a0716;text-decoration:none}
.work-list li .date{color:#999;font-size:12px;flex-shrink:0}

/* 三栏 */
.home-triple{display:flex;gap:20px;margin:24px 0}
.home-triple>div{flex:1;min-width:0}
.triple-list{list-style:none}
.triple-list li{padding:10px 0;border-bottom:1px dashed #eee;display:flex;align-items:baseline;gap:8px}
.triple-list li:last-child{border-bottom:none}
.triple-list li::before{content:"";width:6px;height:6px;background:#8a0716;border-radius:50%;flex-shrink:0}
.triple-list li a{color:#333;font-size:14px;flex:1}
.triple-list li a:hover{color:#8a0716;text-decoration:none}
.triple-list li .date{color:#999;font-size:12px;flex-shrink:0}

/* 视频区域 */
.video-box{position:relative;padding-top:56.25%;background:#000;border-radius:4px;overflow:hidden}
.video-box video,.video-box iframe{position:absolute;inset:0;width:100%;height:100%}

/* 校园风景 */
.campus-grid{display:flex;gap:16px;flex-wrap:wrap}
.campus-grid img{width:calc(25% - 12px);height:140px;object-fit:cover;border-radius:3px}

/* 快捷入口 — 内嵌 card 与其他行对齐 */
.quick-entry{margin:20px 0}
.quick-entry ul{list-style:none;display:flex;justify-content:space-around}
.quick-entry li a{display:flex;flex-direction:column;align-items:center;gap:8px;color:#555;font-size:13px}
.quick-entry li a:hover{color:#8a0716;text-decoration:none}
.quick-entry .icon{width:48px;height:48px;border-radius:50%;background:#8a0716;color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700}

/* 专题活动卡片 */
.topic-cards{display:flex;gap:20px;flex-wrap:wrap}
.topic-card{flex:1;min-width:280px;background:#fafafa;border:1px solid #e8e8e8;border-radius:6px;padding:20px;transition:box-shadow 0.2s}
.topic-card:hover{box-shadow:0 4px 12px rgba(138,7,22,0.12)}
.topic-card h3{font-size:16px;color:#8a0716;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.topic-card h3 .t-icon{width:32px;height:32px;background:#8a0716;color:#fff;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.topic-card p{color:#666;font-size:13px;line-height:1.6;margin-bottom:14px}
.topic-card .upload-link{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;background:#8a0716;color:#fff;border-radius:3px;font-size:13px;cursor:pointer;transition:background 0.2s}
.topic-card .upload-link:hover{background:#5a0410;color:#fff;text-decoration:none}
.topic-card .upload-link::before{content:"PDF";font-size:11px;font-weight:700;background:rgba(255,255,255,0.2);padding:2px 6px;border-radius:2px}

/* 页脚 */
.footer{background:#2c2c2c;color:#ccc;padding:40px 0 20px;margin-top:40px}
.footer-grid{display:flex;gap:40px;flex-wrap:wrap}
.footer-col{flex:1;min-width:200px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid #8a0716}
.footer-col p,.footer-col a{color:#bbb;font-size:13px;line-height:1.8}
.footer-col a:hover{color:#fff;text-decoration:none}
.footer-bottom{margin-top:30px;padding-top:20px;border-top:1px solid #444;text-align:center;color:#888;font-size:12px}

/* 二维码区域 */
.qr-section{display:flex;align-items:center;gap:16px;margin-top:10px}
.qr-section img{width:100px;height:100px;border-radius:4px;background:#fff;padding:4px}
.qr-section .qr-label{color:#bbb;font-size:13px;line-height:1.6}
.qr-section .qr-label strong{color:#fff;font-size:14px}

/* 子页横幅 */
.sub-banner{height:180px;background:linear-gradient(135deg,#8a0716,#5a0410);display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;font-weight:700;letter-spacing:4px}
.breadcrumb{padding:14px 0;font-size:13px;color:#666}
.breadcrumb a{color:#8a0716}

/* 栏目布局 */
.layout{display:flex;gap:24px;margin:24px 0}
.layout aside{flex:0 0 240px;min-width:0}
.layout main{flex:1;min-width:0}
.aside-nav{background:#fff;border-radius:4px;box-shadow:0 1px 4px rgba(0,0,0,0.08);padding:16px}
.aside-nav h3{font-size:16px;color:#8a0716;padding-bottom:10px;margin-bottom:12px;border-bottom:2px solid #8a0716}
.aside-nav ul{list-style:none}
.aside-nav li{padding:10px 12px;border-bottom:1px solid #f5f5f5}
.aside-nav li:last-child{border-bottom:none}
.aside-nav li a{color:#333;font-size:14px}
.aside-nav li a:hover{color:#8a0716}
.aside-nav li.active a{color:#8a0716;font-weight:700}

/* 列表页 */
.list-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid #eee}
.list-item:last-child{border-bottom:none}
.list-thumb{flex:0 0 180px;height:120px;border-radius:3px;overflow:hidden;background:#f0f0f0}
.list-thumb img{width:100%;height:100%;object-fit:cover}
.list-info{flex:1;min-width:0}
.list-info h3{font-size:16px;margin-bottom:8px}
.list-info h3 a{color:#222}
.list-info h3 a:hover{color:#8a0716}
.list-info .meta{color:#999;font-size:12px;margin-bottom:8px}
.list-info p{color:#666;font-size:13px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 详情页 */
.detail-content{background:#fff;border-radius:4px;box-shadow:0 1px 4px rgba(0,0,0,0.08);padding:32px}
.detail-content h1{font-size:22px;margin-bottom:12px;color:#222}
.detail-meta{color:#999;font-size:13px;padding-bottom:16px;margin-bottom:24px;border-bottom:1px solid #eee}
.detail-content .body{font-size:15px;line-height:1.8;color:#333}
.detail-content .body p{margin-bottom:16px}

/* 标签页 */
.tabs{display:flex;gap:0;margin-bottom:20px;border-bottom:2px solid #e5e5e5}
.tabs button{padding:12px 24px;background:transparent;border:none;cursor:pointer;font-size:15px;color:#666;border-bottom:3px solid transparent;margin-bottom:-2px}
.tabs button:hover{color:#8a0716}
.tabs button.active{color:#8a0716;font-weight:700;border-bottom-color:#8a0716}
.tab-pane{display:none}
.tab-pane.active{display:block}

/* 下载专区 */
.download-list{list-style:none}
.download-list li{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px dashed #eee}
.download-list li:last-child{border-bottom:none}
.download-icon{width:40px;height:40px;background:#f5f5f5;border-radius:4px;display:flex;align-items:center;justify-content:center;color:#8a0716;font-size:18px;font-weight:700}
.download-info{flex:1}
.download-info a{color:#222;font-size:14px}
.download-info a:hover{color:#8a0716}
.download-info .meta{color:#999;font-size:12px;margin-top:4px}
.download-btn{padding:6px 16px;background:#8a0716;color:#fff;border-radius:3px;font-size:13px}
.download-btn:hover{background:#5a0410;color:#fff;text-decoration:none}

/* 分页 */
.pager{display:flex;justify-content:center;gap:8px;margin:30px 0}
.pager a,.pager span{padding:6px 14px;border:1px solid #ddd;border-radius:3px;color:#666;font-size:13px}
.pager a:hover{color:#8a0716;border-color:#8a0716;text-decoration:none}
.pager .active{background:#8a0716;color:#fff;border-color:#8a0716}

/* 并排双栏 — gap:20px 与焦点区统一，分界线对齐 */
.home-dual{display:flex;gap:20px;margin:20px 0}
.dual-left{flex:2.85;min-width:0}
.dual-right{flex:1.15;min-width:280px}
.dual-right .video-box{margin-top:0}
/* 并排行的 card 去掉底部 margin */
.home-focus .card,.home-dual .card,.quick-entry .card,.section>.card{margin-bottom:0}

/* 双栏模式（理论学习+规章制度） */
.home-triple-2 .card{width:calc(50% - 10px)}

/* 紧凑专题活动卡片（右侧窄栏用） */
.topic-cards-compact{display:flex;flex-direction:column;gap:10px}
.topic-cards-compact .topic-card{padding:10px 12px}
.topic-cards-compact .topic-card h3{font-size:13px;margin-bottom:4px}
.topic-cards-compact .topic-card p{font-size:11px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.topic-cards-compact .upload-link{font-size:11px;padding:3px 8px}

/* 响应式 */
@media(max-width:900px){
  .home-focus,.home-triple,.home-dual,.layout,.topic-cards{flex-direction:column}
  .dual-left,.dual-right{flex:none;width:100%}
  .layout aside{flex:none}
  .topbar .wrap{flex-wrap:wrap}
  .site-title h1{font-size:22px}
  .emblem{width:50px;height:50px}
  .mainnav ul{flex-wrap:wrap;justify-content:center}
  .mainnav li a{padding:10px 16px;font-size:14px}
  .focus-img{height:280px}
  .campus-grid img{width:calc(50% - 8px)}
  .quick-entry ul{flex-wrap:wrap;justify-content:center;gap:12px}
  .quick-entry li{width:80px}
}