/* 活动列表页样式 */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; margin-bottom: 30px; }
.activity-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    border: 1px solid #f0f0f0;
    text-decoration: none;
    display: block;
    transform: translate3d(0, 0, 0);
    will-change: transform;
}
.activity-card:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transform: translate3d(0,-4px,0);
}
.activity-card img { 
    width: 100%; 
    height: 200px; 
    object-fit: cover;
    transition: transform 0.3s ease;
}
.activity-card:hover img {
    transform: scale3d(1.05,1.05,1);
}
.activity-card .info { padding: 20px; }
.activity-card .title { font-size: 17px; font-weight: bold; color: #2c3e50; margin-bottom: 10px; }
.activity-card .desc { color: #7f8c8d; font-size: 13px; line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.activity-card .meta { display: flex; justify-content: space-between; align-items: center; }
.activity-card .time { color: #95a5a6; font-size: 13px; }
.status { display: inline-block; padding: 4px 12px; border-radius: 12px; font-size: 12px; }
.status-0 { background: #fff8e1; color: #f57f17; }
.status-1 { background: #e3f2fd; color: #1565c0; }
.status-2 { background: #fff3e0; color: #e65100; }
.status-3 { background: #e8f5e9; color: #2e7d32; }
.status-4 { background: #f0f0f0; color: #888; }
@media (max-width: 992px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 576px) { .grid-3 { grid-template-columns: 1fr; } }