.chain-panel{margin:14px 0;border:1px solid var(--line,#dce5ef);border-radius:16px;padding:18px}.chain-panel h3{margin:4px 0}.chain-panel summary{cursor:pointer;font-weight:650;padding:12px 0}.chain-settings{max-width:620px}.chain-panel label{display:grid;gap:6px;margin:12px 0}.chain-panel select,.chain-panel input{width:100%;min-height:42px}.chain-panel select[size]{padding:6px}.chain-panel option{padding:9px}.chain-campus-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:12px}.chain-campus-card{display:flex;flex-direction:column;gap:8px;text-align:left;white-space:normal;overflow-wrap:anywhere}.chain-campus-card span{font-size:.9rem}.chain-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.chain-attach-picker{flex-basis:100%;max-width:620px}.chain-list-group{grid-column:1/-1;min-width:0}.chain-list-group>summary{padding:14px;font-weight:700;cursor:pointer}.chain-group-toggle{display:flex;align-items:center;gap:8px}.chain-group-toggle input{width:auto}.chain-panel [hidden]{display:none!important}@media(max-width:560px){.chain-campus-list{grid-template-columns:1fr}.chain-panel .detail-head{flex-wrap:wrap;gap:10px}.chain-actions>button{width:100%}}