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li:before{content:"";position:absolute;left:7px;top:18px;bottom:0;width:2px;background:var(--line)}.timeline li:last-child:before{display:none}.timeline .t-dot{position:absolute;left:0;top:3px;width:16px;height:16px;border-radius:50%;background:var(--surface);border:3px solid var(--brand)}.timeline .t-dot.ok{border-color:var(--ok)}.timeline .t-dot.warn{border-color:var(--warn)}.timeline .t-dot.bad{border-color:var(--bad)}.timeline .t-dot.mute{border-color:var(--faint)}.msgs{display:flex;flex-direction:column;gap:10px}.msg{max-width:85%;padding:10px 12px;border-radius:12px;font-size:13.5px;background:var(--surface-2);border:1px solid var(--line)}.msg.customer{align-self:flex-end;background:var(--brand-50);border-color:var(--brand-100)}.msg.system{align-self:center;background:none;border:0;color:var(--mute);font-size:12px;text-align:center}.msg .meta{font-size:11.5px;color:var(--mute);margin-bottom:3px}.progress{height:8px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);overflow:hidden}.progress>span{display:block;height:100%;background:var(--brand);border-radius:inherit;transition:width .6s var(--ease)}.progress.warn>span{background:var(--warn)}.progress.bad>span{background:var(--bad)}.avatar{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:12px;color:#fff;background:var(--navy);flex:none}.avatar.sm{width:24px;height:24px;font-size:10px}.avatar.lg{width:44px;height:44px;font-size:15px;border-radius:12px}.demo-ribbon{position:fixed;left:50%;transform:translate(-50%);bottom:12px;z-index:80;background:#171b2ce0;color:#fff;font-size:12px;padding:6px 14px;border-radius:999px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:flex;gap:10px;align-items:center}.demo-ribbon a{color:#93c5fd}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}