/* 客服侧栏：固定在右下角，展开时下方按钮不位移（面板在上、回到顶部、客服按钮在下） */
.kf-side{position:fixed;right:24px;bottom:24px;z-index:1200;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.kf-side .kf-body{bottom:auto}
.kf-side .totop{position:static;margin:2px 3px 0 auto}
.kf-toggle{width:52px;height:52px;border-radius:50%;background:var(--grad,#12a06b);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;cursor:pointer;box-shadow:0 10px 26px rgba(18,160,107,.35);transition:transform .2s}
.kf-toggle:hover{transform:translateY(-2px)}
.kf-body{display:none;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line,#e6efe9);border-radius:16px;padding:14px;width:250px;box-shadow:0 20px 50px rgba(16,50,38,.18)}
.kf-side.open .kf-body{display:flex}
.kf-hd{display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--green-d,#0e7a50);padding-bottom:6px;border-bottom:1px solid var(--line,#eef4f0)}
.kf-close{cursor:pointer;font-size:20px;color:#9bb0a7;line-height:1}
.kf-item{display:flex;align-items:center;gap:11px;padding:9px;border-radius:11px;text-decoration:none;color:inherit;position:relative;transition:.2s}
.kf-item:hover{background:var(--bg-soft,#f2faf6)}
.kf-item>i{font-size:20px;color:var(--green,#12a06b)}
.kf-item b{display:block;font-size:14px}
.kf-item small{color:var(--muted,#8aa39a);font-size:12px}
.kf-qr .kf-pop{display:none;position:absolute;right:104%;top:0;background:#fff;border:1px solid var(--line,#e6efe9);border-radius:12px;padding:12px;box-shadow:0 16px 40px rgba(16,50,38,.18);text-align:center}
.kf-qr:hover .kf-pop{display:block}
.kf-qrbox{width:120px;height:120px;border-radius:10px;background:var(--bg-soft,#f2faf6);display:flex;align-items:center;justify-content:center;font-size:60px;color:var(--green,#12a06b)}
.kf-qr .kf-pop span{font-size:12px;color:var(--muted,#8aa39a);display:block;margin-top:6px}

/* AI 选型 / 对话结果 */
.ai-loading{display:inline-flex;gap:5px;align-items:center}
.ai-loading i{width:7px;height:7px;border-radius:50%;background:currentColor;animation:aidot 1s infinite}
.ai-loading i:nth-child(2){animation-delay:.15s}.ai-loading i:nth-child(3){animation-delay:.3s}
@keyframes aidot{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}
.form-ok{background:#eafaf3;border:1px solid #b6e6cd;color:#0e7a50;border-radius:12px;padding:14px 16px;font-size:14px}
.toast{position:fixed;left:50%;top:24px;transform:translateX(-50%);background:#0e7a50;color:#fff;padding:11px 22px;border-radius:12px;z-index:9999;font-size:14px;box-shadow:0 12px 30px rgba(14,122,80,.35)}
.badge-ai{display:inline-flex;align-items:center;gap:5px;background:var(--green-l,#e7f7ef);color:var(--green-d,#0e7a50);border-radius:20px;padding:3px 12px;font-size:12px;font-weight:800}