.yz-assistant-launcher{position:fixed;right:20px;bottom:22px;z-index:1200;width:48px;height:48px;border:1px solid #dadada;border-radius:16px;background:#171719;color:#fff;font:700 14px/1 sans-serif;box-shadow:0 14px 34px #0002;cursor:pointer}
.yz-assistant-panel{position:fixed;z-index:1300;right:16px;top:74px;bottom:16px;width:min(400px,calc(100vw - 32px));background:#fff;border:1px solid #ddd;border-radius:22px;box-shadow:0 24px 70px #0003;overflow:hidden;color:#1b1b1d}
.yz-assistant-panel[hidden]{display:none}.yz-assistant-panel>header{height:70px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid #ececef}.yz-assistant-panel>header div{display:flex;flex-direction:column;gap:4px}.yz-assistant-panel>header strong{font-size:18px}.yz-assistant-panel>header span{font-size:12px;color:#8a8a91}.yz-assistant-panel>header button{width:38px;height:38px;border:0;border-radius:12px;background:#f1f1f3;font-size:24px;cursor:pointer}
.yz-assistant-tabs{height:50px;padding:8px 12px;display:flex;gap:6px;border-bottom:1px solid #eee}.yz-assistant-tabs button{flex:1;white-space:nowrap;border:0;border-radius:10px;background:transparent;font-size:12px;cursor:pointer}.yz-assistant-tabs button.active{background:#18181b;color:#fff}
.yz-assistant-messages{position:absolute;inset:121px 0 164px;padding:16px;overflow:auto;background:#fafafa}.yz-assistant-messages article{max-width:90%;margin:0 0 14px;padding:12px 14px;border:1px solid #e7e7ea;border-radius:14px;background:#fff}.yz-assistant-messages article[data-role=user]{margin-left:auto;background:#18181b;color:#fff;border-color:#18181b}.yz-assistant-messages article b{display:block;margin-bottom:7px;font-size:12px}.yz-assistant-content{white-space:pre-wrap;line-height:1.6;font-size:14px;word-break:break-word}.yz-assistant-messages article footer{display:flex;gap:8px;margin-top:10px}.yz-assistant-messages article footer button{border:1px solid #ddd;border-radius:8px;background:#fff;padding:6px 9px;white-space:nowrap;cursor:pointer}.yz-assistant-waiting{color:#777;font-size:13px}
.yz-assistant-upload{position:absolute;left:14px;right:14px;bottom:126px}.yz-assistant-upload label{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;color:#666}.yz-assistant-upload input{max-width:210px}.yz-assistant-error{position:absolute;left:16px;right:16px;bottom:105px;margin:0;color:#c33;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.yz-assistant-compose{position:absolute;left:0;right:0;bottom:0;display:flex;gap:10px;padding:14px;border-top:1px solid #eee;background:#fff}.yz-assistant-input{flex:1;min-width:0;resize:none;border:1px solid #ddd;border-radius:12px;padding:10px;font:14px/1.5 inherit}.yz-assistant-send{width:68px;border:0;border-radius:12px;background:#18181b;color:#fff;font-weight:700;white-space:nowrap;cursor:pointer}.yz-assistant-send:disabled{opacity:.45}
@media(max-width:720px){.yz-assistant-panel{right:0;top:56px;bottom:0;width:100vw;border-radius:0}.yz-assistant-launcher{right:12px;bottom:14px}}