.chat-fab{position:fixed;right:24px;bottom:24px;z-index:1200;width:56px;height:56px;border:none;border-radius:999px;background:var(--primary-color);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 8px 24px rgba(0,0,0,.25);transition:transform .16s ease,opacity .16s ease}.chat-fab:hover{transform:translateY(-2px)}.chat-panel{position:fixed;right:24px;bottom:92px;z-index:1200;width:370px;max-width:calc(100vw - 32px);height:540px;max-height:calc(100vh - 130px);display:flex;flex-direction:column;background:var(--bg-color);color:var(--text-color);border:1px solid var(--border-color);border-radius:18px;overflow:hidden;box-shadow:0 16px 48px rgba(0,0,0,.28)}.chat-panel__header{display:flex;align-items:center;gap:8px;padding:12px 14px;background:var(--primary-color);color:#fff}.chat-panel__title{flex:1;font-weight:700;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-iconbtn{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border:none;border-radius:8px;background:rgba(255,255,255,.16);color:#fff;cursor:pointer}.chat-panel__body{flex:1;min-height:0;overflow-y:auto;padding:12px}.chat-empty{color:var(--icon-color);font-size:13px;text-align:center;padding:16px}.chat-signin{text-align:center;padding:24px 16px}.chat-signin h4{margin:0 0 8px;font-size:16px}.chat-signin p{margin:0 0 16px;font-size:13px;color:var(--icon-color)}.chat-primary-btn{display:inline-block;padding:9px 18px;border-radius:10px;background:var(--primary-color);color:#fff;font-weight:700;font-size:14px;text-decoration:none}.chat-newbtn,.chat-platform{display:flex;align-items:center;gap:8px;width:100%;padding:10px 12px;margin-bottom:8px;border:1px solid var(--border-color);border-radius:10px;background:var(--bg-color-input);color:var(--primary-color);font-weight:700;font-size:14px;cursor:pointer}.chat-list{display:flex;flex-direction:column}.chat-company,.chat-convo{display:flex;align-items:center;gap:10px;width:100%;padding:10px 8px;border:none;border-radius:10px;background:rgba(0,0,0,0);color:var(--text-color);text-align:left;cursor:pointer;font-size:14px}.chat-company:hover,.chat-convo:hover{background:var(--bg-color-input)}.chat-convo__avatar{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:color-mix(in srgb,var(--primary-color) 16%,transparent);color:var(--primary-color);font-weight:800;flex-shrink:0}.chat-convo__meta{display:flex;flex-direction:column;min-width:0;flex:1}.chat-convo__name{font-weight:700}.chat-convo__last{font-size:12px;color:var(--icon-color);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-convo__badge{background:var(--danger-color);color:#fff;border-radius:999px;font-size:11px;font-weight:800;padding:1px 7px}.chat-search{display:flex;align-items:center;gap:8px;padding:8px 12px;margin-bottom:10px;border:1px solid var(--border-color);border-radius:10px;color:var(--icon-color)}.chat-search input{flex:1;border:none;outline:none;background:rgba(0,0,0,0);color:var(--text-color);font-size:14px}.chat-thread{display:flex;flex-direction:column;gap:8px}.chat-bubble{max-width:78%;padding:9px 12px;border-radius:14px;font-size:14px;line-height:1.4;word-break:break-word}.chat-bubble--me{align-self:flex-end;background:var(--primary-color);color:#fff;border-bottom-right-radius:4px}.chat-bubble--them{align-self:flex-start;background:var(--bg-color-input);color:var(--text-color);border:1px solid var(--border-color);border-bottom-left-radius:4px}.chat-inputbar{display:flex;align-items:center;gap:8px;padding:10px 12px;border-top:1px solid var(--border-color)}.chat-inputbar input{flex:1;border:1px solid var(--border-color);border-radius:999px;padding:9px 14px;background:var(--bg-color-input);color:var(--text-color);outline:none;font-size:14px}.chat-inputbar button{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;border-radius:999px;background:var(--primary-color);color:#fff;cursor:pointer}.chat-inputbar button:disabled{opacity:.5;cursor:not-allowed}