.bk-chat{bottom:24px;position:fixed;right:24px;z-index:9999}.bk-chat-toggle{background:#ff6000;border:none;border-radius:50%;box-shadow:0 4px 12px rgba(0,0,0,.2);color:#fff;cursor:pointer;font-size:24px;height:56px;position:relative;width:56px}.bk-chat-badge{background:#e02;border-radius:9px;color:#fff;font-size:12px;height:18px;line-height:18px;min-width:18px;padding:0 4px;position:absolute;right:-4px;text-align:center;top:-4px}.bk-chat-panel{background:#fff;border-radius:8px;bottom:68px;box-shadow:0 6px 24px rgba(0,0,0,.18);display:flex;flex-direction:column;height:440px;overflow:hidden;position:absolute;right:0;width:320px}.bk-chat-header{align-items:center;background:#ff6000;color:#fff;display:flex;font-weight:600;justify-content:space-between;padding:12px 16px}.bk-chat-close{background:none;border:none;color:#fff;cursor:pointer;font-size:24px;line-height:1;padding:0 4px}.bk-chat-messages{background:#f7f7f7;flex:1;overflow-y:auto;padding:12px}.bk-msg{border-radius:8px;margin-bottom:10px;max-width:75%;padding:8px 12px;word-break:break-word}.bk-msg-me{background:#ff6000;color:#fff;margin-left:auto}.bk-msg-other{background:#fff;border:1px solid #eee;margin-right:auto}.bk-msg-img{border-radius:6px;display:block;max-width:180px}.bk-chat-input{align-items:center;border-top:1px solid #eee;display:flex;gap:6px;padding:8px}.bk-chat-input input[type=text]{border:1px solid #ddd;border-radius:4px;flex:1;padding:6px 8px}.bk-chat-input #bk-chat-send{background:#ff6000;border:none;border-radius:4px;color:#fff;cursor:pointer;padding:6px 12px}.bk-chat-image-btn{color:#888;cursor:pointer;font-size:20px}.bk-chat-emoji-btn{background:none;border:none;cursor:pointer;font-size:20px;line-height:1;padding:0}.bk-emoji-panel{background:#fff;border:1px solid #e5e5e5;border-radius:8px;bottom:calc(100% + 6px);box-shadow:0 4px 16px rgba(0,0,0,.15);display:grid;gap:2px;grid-template-columns:repeat(8,1fr);left:8px;max-height:180px;overflow-y:auto;padding:8px;position:absolute;right:8px;z-index:10}.bk-emoji-item{background:none;border:none;border-radius:4px;cursor:pointer;font-size:20px;line-height:1;padding:4px 0}.bk-emoji-item:hover{background:#f2f2f2}.d-none{display:none!important}@media (max-width:768px){.bk-chat{bottom:90px;right:16px}.bk-chat-toggle{font-size:20px;height:48px;width:48px}.bk-chat-panel{border-radius:0;bottom:0;height:100%;height:100dvh;left:0;position:fixed;right:0;top:0;width:100%}.bk-chat-header{font-size:16px;padding:14px 16px}.bk-chat-close{font-size:28px}.bk-msg{max-width:85%}}