.activity-list{max-width:1200px;margin:100px auto}.activity-list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap}.activity-list-content{margin-top:45px}.activity-list-content-image{min-height:500px}.activity-list-content-image img{width:100%}.activity-list-content-video{width:100%;height:650px}.activity-list-content-video video{width:100%;height:100%;object-fit:cover}.activity-list-content-related{margin-top:32px;display:grid;grid-template-columns:repeat(2,1fr);grid-gap:52px;gap:52px}.activity-title{font-size:24px;font-weight:600;color:#333;border-left:4px solid #0056b3;padding-left:12px;margin:0}.activity-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:24px;gap:24px}@media (max-width:1024px){.activity-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.activity-grid{grid-template-columns:1fr}}.related-articles{max-width:1200px;margin:32px auto;padding:0 16px}.related-title{font-size:20px;font-weight:600;margin-bottom:16px;border-left:4px solid #0056b3;padding-left:12px}.related-list{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:16px;gap:16px}@media (max-width:1024px){.related-list{grid-template-columns:repeat(3,1fr)}}@media (max-width:768px){.related-list{grid-template-columns:repeat(2,1fr)}}@media (max-width:480px){.related-list{grid-template-columns:1fr}}.related-item{background-color:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.1)}.related-item a{text-decoration:none;color:inherit;display:block}.related-image{height:160px;overflow:hidden}.related-image img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}.related-item:hover .related-image img{transform:scale(1.05)}.related-content{padding:12px}.related-title{font-size:16px;font-weight:500;margin:0 0 8px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;color:#333;border-left:none;padding-left:0}.related-date{font-size:12px;color:#999}.activity-recommends{margin-top:90px;padding-top:50px;position:relative}.activity-recommends h3{margin-bottom:20px}.activity-recommends-list{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:18px 0;gap:18px 0;position:relative}.activity-recommends-list a{text-decoration:none;color:inherit;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical}.activity-recommends-list a:hover{text-decoration:underline;cursor:pointer}.activity-recommends-list a:nth-child(odd){padding-right:40px}.activity-recommends-list a:nth-child(2n){padding-left:40px}.activity-recommends-list:after{content:"";position:absolute;top:0;bottom:0;left:50%;width:1px;background-color:rgba(0,0,0,.1);transform:translateX(-50%)}.activity-recommends-list.single-item:after{display:none}