#etWechatOpen{position:fixed;right:28px;bottom:calc(90px + env(safe-area-inset-bottom,0px));z-index:9999;border:0;border-radius:50px;padding:12px 20px;background:#087f5b;color:#fff;font:600 15px/22px -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;box-shadow:0 4px 16px #087f5b44;cursor:pointer;min-height:46px}
#etWechatOpen:focus-visible,#etWechatDialog button:focus-visible{outline:3px solid #f59e0b;outline-offset:3px}
/* Keep the existing back-to-top control clear of both contact buttons. */
body:has(#etWechatOpen) #backToTop{bottom:calc(154px + env(safe-area-inset-bottom,0px))!important}
#etWechatDialog{border:0;border-radius:22px;padding:0;width:min(390px,calc(100vw - 28px));max-height:calc(100dvh - 32px);background:white;color:#1e293b;box-shadow:0 24px 80px #0f172a44;margin:auto;overflow:auto}
#etWechatDialog::backdrop{background:#0f172aa6}
#etWechatDialog .et-wc-card{padding:26px 24px 20px;text-align:center;position:relative}
#etWechatTitle{font:700 21px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;margin:0 25px 14px}
#etWechatClose{position:absolute;top:9px;right:12px;border:0;background:transparent;color:#64748b;font-size:28px;line-height:32px;cursor:pointer;width:36px;height:36px}
#etWechatDialog .et-wc-qr{display:block;width:auto;max-width:100%;height:auto;max-height:43dvh;object-fit:contain;margin:0 auto 12px}
#etWechatDialog .et-wc-label{display:block;font-size:13px;color:#64748b;margin:0 0 5px}
#etWechatId{display:block;box-sizing:border-box;width:100%;border:1px solid #cbd5e1;border-radius:10px;padding:10px;text-align:center;background:#f8fafc;color:#0f172a;font-size:17px;user-select:text}
#etWechatCopy{margin:12px 0 0;border:0;border-radius:30px;background:#087f5b;color:white;padding:11px 22px;font-size:15px;cursor:pointer;min-height:44px}
#etWechatDialog .et-wc-hint{font-size:13px;line-height:1.65;color:#64748b;margin:13px 0 0}
#etWechatStatus{min-height:20px;margin:8px 0 0;color:#087f5b;font-size:13px}
@media(max-width:600px){#etWechatOpen{right:18px;font-size:14px;padding:11px 18px}#etWechatDialog .et-wc-card{padding:23px 18px 16px}}