.main{background-color:#f8fafc;min-height:calc(100vh - 200px)}.container{max-width:1200px;margin:0 auto;padding:0 20px}.banner-section{padding:60px 0;margin-bottom:40px;background-image:url(/static/images/activity/banner.png);background-size:100% auto;background-repeat:no-repeat}.banner-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:40px}.banner-content{flex:1;color:#fff}.banner-title{font-size:48px;font-weight:700;margin:0 0 16px 0;text-shadow:0 2px 4px rgba(0,0,0,.3)}.banner-subtitle{font-size:20px;margin:0;opacity:.9;line-height:1.6;display:flex;align-items:center}.banner-image{flex:0 0 400px}.banner-image img{width:100%;height:auto;border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,.2)}.activity-section{padding:0 0 60px 0}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;flex-wrap:wrap;gap:20px}.section-header h2{font-size:32px;font-weight:700;color:#1a202c;margin:0}.filter-tabs{display:flex;gap:8px;background:#fff;padding:4px;border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,.1)}.tab-btn{padding:12px 24px;border:none;background:0 0;color:#64748b;font-size:14px;font-weight:500;border-radius:8px;cursor:pointer;transition:all .3s ease}.tab-btn:hover{background:#f1f5f9;color:#334155}.tab-btn.active{background:var(--primary-color,#11c898);color:#fff;box-shadow:0 2px 8px rgba(17,200,152,.3)}.activity-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:24px;margin-bottom:40px}.activity-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:all .3s ease;cursor:pointer;position:relative}.activity-card:hover{transform:translateY(-8px);box-shadow:0 12px 32px rgba(0,0,0,.15)}.activity-card-image{width:100%;height:200px;background:linear-gradient(45deg,#f0f2f5,#e2e8f0);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.activity-card-image img{width:100%;height:100%;object-fit:cover}.activity-status{position:absolute;top:12px;right:12px;padding:6px 12px;border-radius:20px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.status-ongoing{background:#10b981;color:#fff}.status-upcoming{background:#f59e0b;color:#fff}.status-ended{background:#6b7280;color:#fff}.activity-card-content{padding:24px}.activity-title{font-size:20px;font-weight:700;color:#1a202c;margin:0 0 12px 0;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.activity-description{color:#64748b;font-size:14px;line-height:1.6;margin:0 0 16px 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.activity-meta{display:flex;flex-direction:column;gap:8px}.meta-item{display:flex;align-items:center;gap:8px;font-size:14px;color:#64748b}.meta-icon{width:16px;height:16px;opacity:.7}.meta-label{font-weight:500;min-width:60px}.meta-value{color:#374151}.load-more-container{text-align:center}.load-more-btn{padding:16px 32px;background:var(--primary-color,#11c898);color:#fff;border:none;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 16px rgba(17,200,152,.3)}.load-more-btn:hover{background:#0ea57a;transform:translateY(-2px);box-shadow:0 6px 20px rgba(17,200,152,.4)}.load-more-btn:disabled{background:#9ca3af;cursor:not-allowed;transform:none;box-shadow:none}.empty-state{text-align:center;padding:60px 20px;color:#64748b}.empty-state img{width:120px;height:120px;opacity:.5;margin-bottom:16px}.empty-state h3{font-size:18px;margin:0 0 8px 0;color:#374151}.empty-state p{font-size:14px;margin:0}@media (max-width:768px){.banner-container{flex-direction:column;text-align:center;gap:24px}.banner-image{flex:none;max-width:300px}.banner-title{font-size:36px}.banner-subtitle{font-size:18px}.section-header{flex-direction:column;align-items:flex-start}.activity-grid{grid-template-columns:1fr}.filter-tabs{width:100%;justify-content:center}}@media (max-width:480px){.container{padding:0 16px}.banner-section{padding:40px 0}.banner-title{font-size:28px}.banner-subtitle{font-size:16px}.activity-card-content{padding:20px}.filter-tabs{flex-wrap:wrap}.tab-btn{padding:10px 16px;font-size:13px}}#invite-btn{padding:8px 24px;border:none;background:0 0;color:#fff;background-color:var(--primary-color);font-size:14px;font-weight:500;border-radius:8px;cursor:pointer;transition:all .3s ease}#invite-btn:hover{box-shadow:0 6px 20px rgba(17,200,152,.4)}