*{box-sizing:border-box;margin:0;padding:0}
:root{--tb:#ff5000;--tb-dark:#e63e00;--bg:#f2f3f5;--card:#fff;--ink:#111;--muted:#999;--line:#e9e9e9}
body{font-size:14px;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif}
input:focus,textarea:focus{outline:none}
::-webkit-scrollbar{width:5px}::-webkit-scrollbar-thumb{background:rgba(0,0,0,.18);border-radius:8px}
/* 外框：淘宝客服窗口，桌面居中卡片 */
.content{width:100%;height:100vh;margin:0 auto;background:var(--bg);display:flex;flex-direction:column;overflow:hidden}
@media(min-width:900px){body{display:flex;align-items:center;justify-content:center;min-height:100vh;background:#e8eaee}.content{max-width:780px;height:calc(100vh - 40px);border:1px solid var(--line);border-radius:12px;box-shadow:0 20px 60px -20px rgba(0,0,0,.25);overflow:hidden}}
/* 顶栏：店铺/客服信息，淘宝橙 */
.contentTop{display:flex;align-items:center;gap:10px;padding:10px 14px;background:linear-gradient(180deg,#ff6a00,var(--tb));color:#fff;min-height:62px}
.kfAvatar{width:42px;height:42px;border-radius:50%;background:#fff url(../img/kftx.jpg) center/cover;border:2px solid rgba(255,255,255,.7);flex:0 0 42px}
.contentTop .shop{flex:1;min-width:0}
.contentTop .shop b{display:block;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.contentTop .shop small{font-size:12px;opacity:.92;display:flex;align-items:center;gap:6px}
.online-dot{background:#14c267;width:8px;height:8px;border-radius:50%;display:inline-block}
.contentTop .kefuNo{font-size:12px;background:rgba(255,255,255,.22);padding:5px 10px;border-radius:999px;white-space:nowrap}
/* 公告条 */
.noticeBar{background:#fff7e8;color:#a35a00;font-size:12px;padding:8px 14px;border-bottom:1px solid #f5e3bd;display:flex;gap:8px;align-items:center}
/* 消息区 */
.contentMiddle{flex:1;overflow-y:auto;padding:14px 12px 10px}
#msgzone{padding-bottom:6px}
.sysTime{text-align:center;margin:10px 0}
.sysTime span{background:rgba(0,0,0,.28);color:#fff;font-size:11px;padding:3px 10px;border-radius:999px}
.messageStyle{margin:8px 2px;overflow:hidden;animation:fadeIn .25s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
.messageStyleLeft1,.messageStyleRight1{width:36px}
.messageStyleLeft1{float:left}.messageStyleRight1{float:right}
.messageStyleLeft1P,.messageStyleRight1P{width:36px;height:36px;border-radius:50%;object-fit:cover;border:1px solid var(--line)}
.messageStyleLeft2{float:left;margin-left:8px;max-width:calc(100% - 110px)}
.messageStyleLeft2T{padding:10px 12px;background:#fff;border:1px solid var(--line);border-radius:4px 14px 14px 14px;font-size:14px;line-height:1.65;white-space:pre-wrap;word-break:break-all;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.messageStyleRight2{float:right;margin-right:8px;max-width:calc(100% - 110px)}
.messageStyleRight2T{padding:10px 12px;background:var(--tb);color:#fff;border-radius:14px 4px 14px 14px;font-size:14px;line-height:1.65;white-space:pre-wrap;word-break:break-all}
.rightArrow,.leftArrow{display:none}
.messageStyleLeft2T img,.messageStyleRight2T img{max-width:220px;border-radius:8px;margin-top:4px;display:block}
/* 咨询快捷问题：淘宝式可点击蓝链改成描边chip */
.messageStyleLeft2T span[id^="xz"]{display:inline-block!important;margin:6px 6px 0 0!important;padding:6px 12px!important;border:1px solid #ffb38a!important;border-radius:999px!important;color:var(--tb)!important;font-size:13px!important;background:#fff5ef;cursor:pointer}
/* 猜你想问 */
.quickAsk{background:#fff;border-top:1px solid var(--line);padding:10px 12px 4px}
.quickAsk .qaTitle{font-size:12px;color:var(--muted);margin-bottom:8px}
.quickAsk .qaList{display:flex;gap:8px;overflow-x:auto;padding-bottom:8px}
.contentMiddle2{display:flex;gap:8px;overflow-x:auto;padding:0 12px 10px;background:#fff;border-bottom:1px solid var(--line)}
.contentMiddle2_bt{flex:0 0 auto;padding:7px 14px;border:1px solid #ffc7a3;background:#fff5ef;color:var(--tb);border-radius:999px;font-size:13px;cursor:pointer}
/* 底部：工具条+输入+发送，淘宝式 */
.toolBar{display:flex;align-items:center;gap:14px;padding:8px 14px;background:#fff;color:#666;font-size:12px}
.toolBar .tbIcon{cursor:pointer;display:flex;align-items:center;gap:4px}
.contentBottom{display:flex;gap:8px;align-items:flex-end;padding:8px 10px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line)}
.picWrap{position:relative;width:40px;height:40px;flex:0 0 40px}
.sendPictureButton{width:40px;height:40px;border-radius:10px;background:#f4f4f4;padding:9px;cursor:pointer;border:1px solid var(--line)}
.sendPicture{position:absolute;left:0;top:0;width:40px;height:40px;opacity:0;cursor:pointer}
.textContent{flex:1;height:44px;min-height:44px;max-height:120px;padding:11px 12px;resize:none;font-size:14px;line-height:20px;border:1px solid var(--line);border-radius:10px;background:#f7f7f7}
.textContent:focus{background:#fff;border-color:var(--tb);box-shadow:0 0 0 3px rgba(255,80,0,.12)}
.sendTextButton{height:44px;padding:0 22px;line-height:44px;border-radius:10px;background:linear-gradient(180deg,#ff6a00,var(--tb-dark));color:#fff;font-size:15px;font-weight:700;cursor:pointer;flex:0 0 auto;box-shadow:0 6px 16px -6px rgba(255,80,0,.6)}
.sendHint{text-align:center;font-size:11px;color:#bbb;background:#fff;padding:0 0 8px}