*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif}body{background:#061c19;color:#122238}.app{width:100%;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:18px}.chat-shell{width:min(465px,100%);height:min(690px,calc(100vh - 36px));background:#fff;border:1px solid #dce5ee;border-radius:28px;overflow:hidden;box-shadow:0 18px 45px rgba(0,0,0,.24);display:flex;flex-direction:column}.chat-head{height:66px;flex:0 0 66px;padding:0 18px;display:flex;align-items:center;gap:10px;border-bottom:1px solid #e5ebf1;background:#fff}.chat-logo{width:42px;height:42px;object-fit:contain;display:block}.chat-title{min-width:0}.chat-title strong,.chat-title small{display:block}.chat-title strong{font-size:16px;color:#102139}.chat-title small{font-size:11px;color:#78869a;margin-top:2px}.dot{display:inline-block;width:7px;height:7px;background:#12b76a;border-radius:50%;margin-right:5px}.chat-head select{margin-left:auto;border:0;background:#f5f7fa;color:#617087;border-radius:8px;padding:6px 7px;font-size:11px}.help-card{margin:14px 14px 8px;padding:10px 12px;display:flex;align-items:center;gap:10px;background:#f4f7fa;border:1px solid #e3eaf1;border-radius:15px}.help-icon{display:grid;place-items:center;width:36px;height:36px;flex:0 0 36px;border-radius:10px;background:#14243b;color:#fff;font-size:20px}.help-card strong,.help-card small{display:block}.help-card strong{font-size:15px;color:#17273d}.help-card small{font-size:11px;color:#66758a;margin-top:2px;line-height:1.35}.messages{flex:1;min-height:0;overflow:auto;padding:8px 18px 12px;display:flex;flex-direction:column;gap:12px;background:#fff}.msg{display:flex;max-width:90%;gap:8px;align-items:flex-end}.msg.user{margin-left:auto;flex-direction:row-reverse}.bubble{padding:10px 12px;border-radius:15px 15px 15px 4px;background:#eef3f8;color:#24364d;white-space:pre-wrap;line-height:1.45;font-size:14px}.user .bubble{background:#14243b;color:#fff;border-radius:15px 15px 4px 15px}.bubble-actions{display:flex;gap:6px;margin-top:7px}.read-btn{border:1px solid #d8e1ea;background:#fff;color:#617087;border-radius:999px;padding:3px 8px;cursor:pointer;font-size:10px}.quick-actions{display:flex;gap:6px;flex-wrap:wrap;padding:0 14px 9px}.quick-actions button{border:1px solid #dce5ee;background:#fff;color:#52657c;border-radius:999px;padding:6px 9px;cursor:pointer;font-size:10px}.composer{display:flex;gap:7px;padding:9px 10px 7px;border-top:1px solid #e5ebf1;background:#fff}.composer input{flex:1;min-width:0;height:38px;background:#f7f9fb;color:#17283e;border:1px solid #d9e2eb;border-radius:12px;padding:9px 12px;outline:none;font:inherit;font-size:13px}.composer input:focus{border-color:#9bb4cc}.round-btn,.send-btn{width:40px;height:38px;border:0;cursor:pointer;border-radius:11px}.round-btn{background:#14243b;color:#fff;font-size:16px}.round-btn.listening{background:#b73b4c}.send-btn{background:#14243b;color:#fff;font-size:19px;font-weight:700}.voice-status{min-height:14px;padding:0 14px;color:#7b8797;font-size:9px;background:#fff;text-align:center}.notice{text-align:center;color:#9aa6b4;font-size:9px;margin:0;padding:2px 10px 9px;background:#fff}.typing .bubble{color:#7e8798}.typing span{animation:blink 1s infinite}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes blink{50%{opacity:.2}}@media(max-width:500px){.app{padding:8px}.chat-shell{height:calc(100vh - 16px);border-radius:22px}.chat-head{height:62px;flex-basis:62px}.chat-logo{width:40px;height:40px}.messages{padding-left:12px;padding-right:12px}.msg{max-width:94%}.help-card{margin-left:10px;margin-right:10px}.quick-actions{padding-left:10px;padding-right:10px}.chat-head select{display:none}}