.ix-chat-shell{height:calc(100vh - 90px);display:grid;grid-template-columns:340px 1fr;background:#f3f6fb;border:1px solid #e5e7eb;border-radius:16px;overflow:hidden}
.ix-chat-sidebar{background:#fff;border-right:1px solid #e5e7eb;display:flex;flex-direction:column;min-width:0}
.ix-chat-header{padding:16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #eef2f7}
.ix-chat-title{font-size:22px;font-weight:800;color:#111827}.ix-chat-subtitle{font-size:12px;color:#6b7280;margin-top:2px}
.ix-chat-refresh{border:0;background:#eef2ff;color:#1d4ed8;border-radius:10px;width:34px;height:34px;font-size:18px;cursor:pointer}
.ix-chat-search{padding:10px 14px;border-bottom:1px solid #eef2f7}.ix-chat-search input{width:100%;border:1px solid #e5e7eb;border-radius:12px;padding:10px 12px;outline:none}
.ix-chat-list{overflow:auto;padding:8px}.ix-chat-conversation{width:100%;border:0;background:transparent;display:flex;gap:10px;padding:10px;border-radius:14px;cursor:pointer;text-align:left;color:#111827}
.ix-chat-conversation:hover,.ix-chat-conversation.active{background:#eef6ff}.ix-chat-avatar{width:42px;height:42px;border-radius:50%;background:#16a34a;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;flex:0 0 auto}
.ix-chat-conv-body{min-width:0;flex:1}.ix-chat-conv-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.ix-chat-conv-row strong,.ix-chat-conv-row span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ix-chat-conv-row small{color:#6b7280;font-size:11px}.ix-chat-conv-row.muted{color:#6b7280;font-size:13px;margin-top:4px}
.ix-chat-badge{background:#16a34a;color:#fff;font-size:11px;min-width:20px;height:20px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;padding:0 6px}
.ix-chat-main{display:flex;flex-direction:column;min-width:0;background:linear-gradient(180deg,#f8fafc,#eef2f7)}.ix-chat-empty{margin:auto;text-align:center;color:#6b7280}.ix-chat-empty-icon{font-size:54px}.ix-chat-empty h3{color:#111827;margin-bottom:4px}
.ix-chat-room-header{height:68px;background:#fff;border-bottom:1px solid #e5e7eb;padding:12px 18px;display:flex;align-items:center;justify-content:space-between}.ix-chat-room-title{font-size:18px;font-weight:800;color:#111827}.ix-chat-room-subtitle{font-size:12px;color:#6b7280;margin-top:3px}
.ix-chat-messages{flex:1;overflow:auto;padding:18px;display:flex;flex-direction:column;gap:8px}.ix-chat-message-row{display:flex}.ix-chat-message-row.mine{justify-content:flex-end}.ix-chat-message-row.theirs{justify-content:flex-start}
.ix-chat-message{max-width:68%;padding:9px 12px;border-radius:16px;background:#fff;box-shadow:0 1px 2px rgba(15,23,42,.08);font-size:14px;line-height:1.35}.ix-chat-message-row.mine .ix-chat-message{background:#dcf8c6}.ix-chat-sender{font-size:12px;font-weight:800;color:#2563eb;margin-bottom:4px}.ix-chat-time{text-align:right;font-size:10px;color:#6b7280;margin-top:5px}
.ix-chat-compose{background:#fff;border-top:1px solid #e5e7eb;padding:12px;display:flex;gap:10px;align-items:flex-end}.ix-chat-compose textarea{flex:1;resize:none;min-height:42px;max-height:110px;border:1px solid #e5e7eb;border-radius:14px;padding:10px 12px;outline:none}.ix-chat-compose button{border:0;background:#16a34a;color:#fff;border-radius:12px;padding:11px 18px;font-weight:800;cursor:pointer}.ix-chat-compose button:disabled{opacity:.55;cursor:not-allowed}.ix-chat-error{background:#fee2e2;color:#991b1b;padding:8px 14px;font-size:13px}