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pre{font-size:.893rem}.avatar{font-size:1.286rem}.avatar-lg{font-size:1.857rem}.msg .msg-avatar{font-size:1.286rem;line-height:1;background:linear-gradient(135deg,var(--bg-active),var(--bg-hover));border:1px solid var(--hairline)}.msg.user .msg-avatar{background:linear-gradient(135deg,var(--bg-active),var(--bg-hover))}.chat-history-item{border:1px solid var(--hairline);border-radius:var(--radius-md);margin-bottom:8px;background:var(--bg-surface-2);overflow:hidden}.chat-history-item summary{display:flex;align-items:center;gap:10px;padding:11px 14px;cursor:pointer;list-style:none;font-size:1rem;transition:background .12s;user-select:none}.chat-history-item summary:hover{background:var(--bg-hover)}.chat-history-item summary::-webkit-details-marker{display:none}.chat-history-item summary:after{content:"\25be";margin-left:auto;color:var(--text-tertiary);font-size:.857rem;transition:transform .15s}.chat-history-item[open] 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