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.msg-user{background:var(--navy);color:#fff;border-bottom-right-radius:6px;align-self:flex-end}.demo .msg-user .photo{background:#ffffff1a;border-radius:12px;align-items:center;gap:12px;margin-bottom:12px;padding:10px;display:flex}.demo .msg-user .photo small{color:#d5dee9;font-size:13.5px}.demo .msg-ai{background:var(--ground);border:1px solid var(--rule);border-bottom-left-radius:6px;align-self:flex-start}.demo .msg-ai .source{border-top:1px solid var(--rule);color:var(--muted);align-items:center;gap:8px;margin-top:12px;padding-top:12px;font-size:13.5px;display:flex}.demo .dot{background:var(--amber);border-radius:50%;flex:none;width:8px;height:8px}section.block{padding:88px 0}.section-head{grid-template-columns:.8fr 1.2fr;gap:56px;margin-bottom:44px;display:grid}.section-head h2{font-size:clamp(30px,3.4vw,40px);line-height:1.12}.section-head p{color:var(--muted);align-self:end}.coverage{border-top:2px solid var(--navy);grid-template-columns:repeat(3,1fr);display:grid}.coverage 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