.ch-activity-wall-card{border-radius:20px;border:1px solid #e2e8f0 !important;border:1px solid var(--surface-border,#e2e8f0) !important;background:#fff;background:var(--surface-bg,#fff);overflow:hidden;}.ch-activity-item{padding:14px 18px;border-bottom:1px solid #f1f5f9;}.ch-activity-item:last-child{border-bottom:none;}.ch-activity-item .activity-content{display:block;}.ch-activity-item .activity-text{font-size:0.88rem;line-height:1.5;color:#334155;margin:0;word-wrap:break-word;}.ch-activity-item .ch-act-icon{font-size:1rem;color:#94a3b8;margin-right:10px;width:18px;text-align:center;vertical-align:middle;}.ch-activity-item .activity-text a{text-decoration:none;font-weight:600;}.ch-activity-item .activity-text .act-author{color:#f97316;}.ch-activity-item .activity-text .act-target{color:#1e293b;font-weight:600;}.ch-activity-item .activity-text a:hover{text-decoration:underline;}.ch-activity-item .activity-text i:not(.ch-act-icon){margin:0 4px;vertical-align:middle;}.ch-activity-item .activity-time{display:block;font-size:0.75rem;color:#94a3b8;margin-top:6px;}.ch-activity-empty{padding:30px;text-align:center;color:#94a3b8;font-style:italic;}