/* 客服小乐挂件 · 暗色原生（纯黑页面融合） */
#kefuFab{position:fixed;right:18px;bottom:18px;width:66px;height:66px;z-index:2147483646;border:none;background:transparent;cursor:pointer;padding:0;filter:drop-shadow(0 0 14px rgba(255,138,122,.45));animation:kefuFloat 3.2s ease-in-out infinite;}
#kefuFab img{width:66px;height:66px;object-fit:contain;display:block;}
#kefuFab .tip{position:absolute;right:72px;top:16px;white-space:nowrap;background:#1a1d26ee;color:#ffd9c9;font:12px/1.6 -apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;padding:6px 10px;border-radius:10px;border:1px solid rgba(255,138,122,.35);pointer-events:none;}
@keyframes kefuFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
#kefuDot{position:fixed;right:16px;bottom:16px;width:26px;height:26px;border-radius:50%;z-index:2147483646;cursor:pointer;border:none;background:radial-gradient(circle at 35% 30%,#ffb199,#e85d75 70%);opacity:.6;box-shadow:0 0 10px rgba(255,138,122,.5);display:none;}
#kefuPanel{position:fixed;right:18px;bottom:94px;width:354px;max-width:calc(100vw - 20px);height:482px;max-height:calc(100vh - 120px);background:#101319f5;border:1px solid rgba(255,138,122,.28);border-radius:18px;box-shadow:0 12px 40px rgba(0,0,0,.65),0 0 24px rgba(255,138,122,.12);display:none;flex-direction:column;z-index:2147483646;font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;}
#kefuPanel.open{display:flex;}
#kefuPerch{position:absolute;top:-40px;right:12px;width:86px;height:86px;pointer-events:none;filter:drop-shadow(0 0 12px rgba(255,138,122,.5));}
#kefuPerch img{width:86px;height:86px;object-fit:contain;display:block;}
#kefuHead{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid #232836;}
#kefuHead .t{flex:1;color:#ffe3da;font-size:13px;font-weight:600;line-height:1.4;}
#kefuHead .t small{display:block;color:#8a93a6;font-weight:400;font-size:10.5px;}
#kefuHead button{background:#1c202b;border:1px solid #2a3040;color:#c8cdd8;width:26px;height:26px;border-radius:8px;cursor:pointer;font-size:13px;line-height:1;}
#kefuHead button:hover{border-color:rgba(255,138,122,.5);color:#ffd9c9;}
#kefuMsgs{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:8px;}
.kefu-msg{max-width:84%;padding:8px 11px;border-radius:12px;font-size:13px;line-height:1.65;color:#e8eaf0;background:#1c202b;border:1px solid #262b38;white-space:pre-wrap;word-break:break-word;}
.kefu-msg.me{align-self:flex-end;background:linear-gradient(135deg,rgba(255,138,122,.22),rgba(232,93,117,.22));border-color:rgba(255,138,122,.4);color:#ffe3da;}
.kefu-msg.sys{align-self:center;background:transparent;border:none;color:#8a93a6;font-size:11.5px;text-align:center;max-width:95%;}
.kefu-msg.crisis{background:#3a1d22;border-color:#ff6b6b;color:#ffd7d7;}
#kefuChips{display:flex;gap:6px;padding:8px 10px;flex-wrap:wrap;border-top:1px solid #232836;}
#kefuChips button{background:#1c202b;border:1px solid rgba(255,138,122,.3);color:#ffd9c9;font-size:11.5px;padding:5px 9px;border-radius:999px;cursor:pointer;}
#kefuChips button:hover{background:#262b38;}
#kefuInputRow{display:flex;gap:8px;padding:10px;border-top:1px solid #232836;}
#kefuInput{flex:1;background:#161a23;border:1px solid #2a3040;border-radius:10px;color:#e8eaf0;font-size:13px;padding:8px 10px;outline:none;font-family:inherit;}
#kefuInput:focus{border-color:rgba(255,138,122,.5);}
#kefuSend{background:linear-gradient(135deg,#ff8a7a,#e85d75);border:none;color:#fff;font-size:13px;font-weight:600;padding:8px 14px;border-radius:10px;cursor:pointer;}
#kefuSend:disabled{opacity:.5;cursor:not-allowed;}