/* MDAI AI 客户顾问 - 前端样式（Navy + Champagne Gold + Ivory） */
.mdai-chat{position:fixed;right:22px;bottom:22px;z-index:1000;font-family:Inter,"Noto Sans SC","PingFang SC",Arial,sans-serif;color:#17212b}
.mdai-chat *{box-sizing:border-box}
/* 圆形按钮（默认最小化状态） */
.mdai-chat-toggle{height:44px;padding:0 16px;border:1px solid rgba(201,161,91,.45);border-radius:22px;background:#071521;color:#c9a15b;box-shadow:0 8px 24px rgba(7,21,33,.28);cursor:pointer;display:flex;flex-direction:row;align-items:center;justify-content:center;gap:7px;line-height:1;transition:transform .2s;font-family:inherit}
.mdai-chat-toggle:hover{transform:translateY(-2px);background:#0b1f33}
.mdai-chat-toggle .mdai-emoji{font-size:17px;line-height:1}
.mdai-chat-toggle b{font-size:13px;font-weight:600;letter-spacing:.02em;color:#f7f5f0;white-space:nowrap}
/* 欢迎气泡（点击前显示，不展开面板） */
.mdai-chat-bubble{position:absolute;right:74px;bottom:14px;max-width:230px;padding:11px 14px;background:#fff;border:1px solid rgba(201,161,91,.35);border-radius:14px 14px 4px 14px;box-shadow:0 8px 26px rgba(7,21,33,.16);font-size:13px;line-height:1.5;color:#17212b;cursor:pointer;animation:mdaiBubbleIn .35s ease}
.mdai-chat-bubble[hidden]{display:none}
@keyframes mdaiBubbleIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
/* 完整聊天面板（点击后展开） */
.mdai-chat-panel{position:absolute;right:0;bottom:76px;width:min(380px,calc(100vw - 28px));height:min(570px,calc(100vh - 120px));background:#fff;border:1px solid #e5e4e0;box-shadow:0 18px 55px rgba(7,21,33,.24);border-radius:16px;overflow:hidden}
.mdai-chat-panel[hidden]{display:none}
.mdai-chat-panel>header{height:74px;padding:16px 18px;background:#071521;color:#f7f5f0;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(201,161,91,.25)}
.mdai-chat-panel header strong{display:block;font-size:17px;font-weight:600;letter-spacing:.01em}
.mdai-chat-panel header small{display:block;margin-top:5px;font-size:11px;color:rgba(247,245,240,.72)}
.mdai-chat-close{border:0;background:transparent;color:#c9a15b;font-size:28px;cursor:pointer;padding:2px 6px;line-height:1}
.mdai-chat-messages{height:calc(100% - 208px);overflow:auto;padding:18px;background:#f7f5f0;display:flex;flex-direction:column;gap:10px}
.mdai-chat-msg{max-width:88%;padding:11px 13px;border-radius:13px;white-space:pre-wrap;font-size:14px;line-height:1.6;overflow-wrap:anywhere}
.mdai-chat-msg.bot{align-self:flex-start;background:#fff;border:1px solid #e5e4e0;color:#17212b}
.mdai-chat-msg.user{align-self:flex-end;background:#071521;color:#f7f5f0}
.mdai-chat-msg.pending{color:#6f7780}
.mdai-chat-msg.error{border-color:#c99;color:#7a1f2d}
.mdai-chat-quick{min-height:46px;display:flex;gap:7px;padding:7px 12px;overflow-x:auto;background:#fff;border-top:1px solid #ece7df}
.mdai-chat-quick button{white-space:nowrap;border:1px solid #d8bb7a;background:#fff;border-radius:14px;padding:4px 11px;color:#17212b;font-size:12px;cursor:pointer;transition:all .2s}
.mdai-chat-quick button:hover{background:#f7f5f0;border-color:#c9a15b;color:#071521}
.mdai-chat form{height:56px;display:flex;gap:8px;padding:9px 10px;border-top:1px solid #ece7df;background:#fff}
.mdai-chat textarea{flex:1;resize:none;border:1px solid #d8d1c7;border-radius:9px;padding:9px 10px;font:14px/1.4 inherit;outline:none;color:#17212b}
.mdai-chat textarea:focus{border-color:#c9a15b}
.mdai-chat-send{border:0;border-radius:9px;background:#c9a15b;color:#071521;padding:0 16px;cursor:pointer;font-weight:600}
.mdai-chat-send:disabled{opacity:.5;cursor:wait}
.mdai-chat-panel>footer{height:34px;padding:7px 12px;background:#fff;color:#6f7780;font-size:10px;text-align:center}
.mdai-chat-panel>footer a{color:#071521;font-weight:700;margin-left:4px}
.mdai-chat .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:600px){
  .mdai-chat{right:14px;bottom:14px}
  .mdai-chat-panel{position:fixed;inset:10px;width:auto;height:auto;max-height:none;border-radius:14px}
  .mdai-chat-toggle{height:40px;padding:0 14px;border-radius:20px}
  .mdai-chat-toggle b{font-size:12px}
  .mdai-chat-bubble{right:66px;bottom:10px;max-width:200px}
  .mdai-chat-messages{height:calc(100% - 208px)}
}
@media(prefers-reduced-motion:reduce){.mdai-chat *{scroll-behavior:auto!important}}