.support-launch{position:fixed;right:24px;bottom:28px;z-index:1001;background:#163454;color:#fff;border:1px solid #335374;border-radius:28px;padding:14px 22px;box-shadow:0 8px 28px #10243e30;font:600 15px "Microsoft YaHei",sans-serif;cursor:pointer}
.support-launch em{font-style:normal;margin-left:6px;background:#d44949;border-radius:12px;padding:2px 7px}
.support-chat{box-sizing:border-box;position:fixed;right:24px;bottom:90px;width:380px;max-width:calc(100% - 28px);height:540px;max-height:calc(100dvh - 110px);z-index:1002;display:flex;flex-direction:column;background:#fff;border:1px solid #d8e3ed;border-radius:14px;overflow:hidden;box-shadow:0 18px 60px #10243e30;font:14px "Microsoft YaHei",sans-serif;color:#122741}
.support-chat[hidden]{display:none}.support-chat header{background:#122741;color:white;padding:18px;display:flex;justify-content:space-between;align-items:center}.support-chat header strong{font-size:17px}.support-chat header small{display:block;color:#c2cfdf;font-size:12px;margin-top:6px}.support-chat header button{border:0;background:transparent;color:#fff;font-size:24px;cursor:pointer;padding:0 5px}.support-chat-list{flex:1;overflow:auto;background:#f4f7fa;padding:16px;min-height:0;overscroll-behavior:contain}.support-chat-empty{line-height:1.8;color:#687b92;margin:20px 0}.support-chat-msg{display:flex;flex-direction:column;align-items:flex-start;margin:0 0 16px}.support-chat-msg.visitor{align-items:flex-end}.support-chat-msg small{font-size:11px;color:#75869a;margin-bottom:5px}.support-chat-bubble{white-space:pre-wrap;overflow-wrap:anywhere;max-width:88%;padding:11px 14px;line-height:1.65;background:#fff;border:1px solid #dee7f0;border-radius:10px}.visitor .support-chat-bubble{background:#1c4d7b;color:white;border-color:#1c4d7b}.support-chat form{padding:12px 15px;background:#fff;border-top:1px solid #e3e9f0}.support-chat textarea{box-sizing:border-box;width:100%;min-height:60px;max-height:100px;resize:vertical;border:1px solid #ccd9e7;border-radius:6px;padding:9px;color:#122741;font:14px "Microsoft YaHei",sans-serif}.support-chat-actions{display:flex;align-items:center;justify-content:space-between;margin-top:8px;gap:8px}.support-chat-actions small{color:#6e7f92;font-size:11px}.support-chat-actions button{border:0;border-radius:6px;background:#235c90;color:white;padding:9px 20px;cursor:pointer}.support-chat-status{font-size:12px;color:#687b92;padding:0 15px 8px;min-height:22px}.support-chat-actions button:disabled{opacity:.5;cursor:wait}
@media(max-width:720px){.support-launch{right:14px;bottom:88px;padding:12px 16px}.support-chat{right:14px;bottom:142px;width:calc(100% - 28px);height:480px;max-height:calc(100dvh - 165px)}}