#bh-fab{position:fixed;bottom:24px;right:24px;width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,#e8557a,#8b3fa8);border:none;cursor:pointer;box-shadow:0 4px 20px rgba(232,85,122,.5);font-size:28px;display:flex;align-items:center;justify-content:center;z-index:2147483647;animation:bhPulse 2.5s infinite}@keyframes bhPulse{0%,100%{box-shadow:0 4px 20px rgba(232,85,122,.5)}50%{box-shadow:0 4px 30px rgba(232,85,122,.8),0 0 0 10px rgba(232,85,122,.1)}}#bh-fab:hover{transform:scale(1.1)}#bh-box{position:fixed;bottom:96px;right:24px;width:350px;height:500px;background:#fff;border-radius:18px;box-shadow:0 10px 50px rgba(0,0,0,.2);display:none;flex-direction:column;overflow:hidden;z-index:2147483646}#bh-box.open{display:flex}.bh-top{background:linear-gradient(135deg,#e8557a,#8b3fa8);padding:14px 16px;color:#fff;display:flex;align-items:center;gap:10px}.bh-top-av{font-size:24px}.bh-top-info{flex:1}.bh-top-name{font-weight:700;font-size:.95rem}.bh-top-status{font-size:.7rem;opacity:.85}.bh-top-close{background:rgba(255,255,255,.2);border:none;color:#fff;width:28px;height:28px;border-radius:8px;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center}.bh-chips{display:flex;gap:6px;padding:8px 12px;overflow-x:auto;background:#fff0f4;border-bottom:1px solid #ecdce4}.bh-chips::-webkit-scrollbar{display:none}.bh-chip{flex-shrink:0;background:#fff;border:1.5px solid #ecdce4;border-radius:20px;padding:4px 11px;font-size:.7rem;font-weight:600;color:#e8557a;cursor:pointer;white-space:nowrap}.bh-chip:hover{background:#e8557a;color:#fff;border-color:#e8557a}#bh-msgs{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:10px;background:#f8f3f6}.bh-row{display:flex;gap:7px}.bh-row.me{flex-direction:row-reverse}.bh-av{width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0;margin-top:2px}.bh-row.bot .bh-av{background:linear-gradient(135deg,#e8557a,#8b3fa8)}.bh-row.me .bh-av{background:#e8e8e8}.bh-col{max-width:82%}.bh-bub{padding:9px 12px;border-radius:14px;font-size:.83rem;line-height:1.65}.bh-row.bot .bh-bub{background:#fff;color:#1a0a12;border-radius:4px 14px 14px 14px;border:1px solid #ecdce4;box-shadow:0 1px 4px rgba(0,0,0,.06)}.bh-row.me .bh-bub{background:linear-gradient(135deg,#e8557a,#c73d62);color:#fff;border-radius:14px 4px 14px 14px}.bh-time{font-size:.6rem;color:#999;margin-top:3px}.bh-row.me .bh-time{text-align:right}.bh-qrs{display:flex;flex-wrap:wrap;gap:5px;margin-top:6px}.bh-qr{background:#fff0f4;border:1.5px solid rgba(232,85,122,.3);border-radius:12px;padding:3px 10px;font-size:.7rem;color:#e8557a;cursor:pointer}.bh-qr:hover{background:#e8557a;color:#fff}.bh-typing{display:flex;gap:5px;padding:9px 12px;background:#fff;border-radius:4px 14px 14px 14px;border:1px solid #ecdce4;width:fit-content}.bh-td{width:7px;height:7px;background:#f9a8c0;border-radius:50%;animation:bhTd 1.2s infinite}.bh-td:nth-child(2){animation-delay:.2s}.bh-td:nth-child(3){animation-delay:.4s}@keyframes bhTd{0%,100%,80%{transform:translateY(0);opacity:.4}40%{transform:translateY(-5px);opacity:1}}.bh-inp-row{display:flex;gap:7px;padding:10px 12px;background:#fff;border-top:1px solid #ecdce4}#bh-inp{flex:1;border:1.5px solid #ecdce4;border-radius:10px;padding:8px 12px;font-size:.83rem;outline:0;resize:none;min-height:38px;max-height:80px;font-family:inherit;background:#f8f3f6}#bh-inp:focus{border-color:#e8557a;background:#fff}#bh-send{width:38px;height:38px;background:linear-gradient(135deg,#e8557a,#8b3fa8);border:none;border-radius:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0}#bh-send:hover{opacity:.88}.bh-foot{text-align:center;padding:5px;font-size:.6rem;color:#999;background:#fff;border-top:1px solid #ecdce4}@media(max-width:480px){#bh-box{bottom:0;right:0;left:0;width:100%;height:90vh;border-radius:18px 18px 0 0}#bh-fab{bottom:20px;right:20px}}