.bh-chat{position:fixed;right:22px;bottom:22px;z-index:9999;font:14px/1.5 Arial,sans-serif;color:#17213b}
.bh-chat *{box-sizing:border-box}.bh-launch{width:56px;height:56px;border:0;border-radius:50%;background:#8eaa42;color:#17213b;font-size:23px;cursor:pointer;box-shadow:0 10px 30px #0003}
.bh-panel{position:absolute;right:0;bottom:70px;width:350px;height:510px;max-height:calc(100vh - 105px);display:none;flex-direction:column;background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 20px 55px #17213b45}
.bh-open .bh-panel{display:flex}.bh-panel header{display:flex;justify-content:space-between;align-items:center;padding:16px 18px;background:#263f75;color:#fff}.bh-panel header div{display:flex;flex-direction:column}.bh-panel header small{opacity:.7}.bh-close{border:0;background:none;color:#fff;font-size:25px;cursor:pointer}
.bh-messages{flex:1;overflow:auto;padding:15px;background:#f5f6f8}.bh-bubble{max-width:86%;padding:10px 12px;margin:0 0 10px;background:#fff;border-radius:11px 11px 11px 3px;box-shadow:0 2px 6px #0000000d}.bh-mine{margin-left:auto;background:#eaf1d8;border-radius:11px 11px 3px 11px}
.bh-topics{display:flex;gap:6px;flex-wrap:wrap;padding:9px 12px}.bh-topics button{border:1px solid #dbe3ca;background:#f3f7ea;border-radius:99px;padding:6px 10px;font-size:12px;cursor:pointer}.bh-panel form{display:flex;border-top:1px solid #e3e6e9}.bh-panel input{flex:1;border:0;padding:14px;outline:0;font-size:16px}.bh-panel form button{width:48px;border:0;background:#8eaa42;font-size:20px;cursor:pointer}
@media(max-width:480px){.bh-chat{right:14px;bottom:14px}.bh-panel{position:fixed;inset:0;width:100%;height:100dvh;max-height:none;border-radius:0}.bh-open .bh-launch{display:none}}
@media(prefers-reduced-motion:reduce){.bh-chat *{scroll-behavior:auto!important}}