.service-robot{position:fixed;right:18px;bottom:4px;z-index:82;width:70px;height:90px;padding:0;border:0;background:transparent;cursor:pointer;color:#13232d;animation:robot-float 4.2s ease-in-out infinite}.robot-icon{position:relative;width:50px;height:58px;margin:22px auto 0;background:#c7cdd1;transform:scale(1.08);transform-origin:center bottom;border:2px solid #59646b;border-radius:13px 13px 15px 15px;box-shadow:0 10px 22px rgba(0,0,0,.22),inset 0 5px 0 rgba(255,255,255,.42)}.robot-icon:before{content:"";position:absolute;left:6px;top:-24px;width:34px;height:28px;background:radial-gradient(circle at 11px 15px,#26313a 0 3px,transparent 4px),radial-gradient(circle at 23px 15px,#26313a 0 3px,transparent 4px),#d9dde0;border:2px solid #59646b;border-radius:13px 13px 9px 9px}.robot-icon:after{content:"XC";position:absolute;left:50%;top:19px;transform:translateX(-50%);width:28px;height:21px;display:grid;place-items:center;background:#eef1f2;border:1px solid #7d878d;border-radius:7px;color:#3f4a52;font-size:11px;font-weight:900;line-height:1;letter-spacing:0}.robot-icon i{position:absolute;left:-10px;top:17px;width:7px;height:25px;background:#aeb6bb;border:2px solid #59646b;border-radius:8px}.robot-icon i:after{content:"";position:absolute;left:49px;top:-2px;width:7px;height:25px;background:#aeb6bb;border:2px solid #59646b;border-radius:8px}.service-robot span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}@keyframes robot-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-2px)}}.chat-panel[hidden]{display:none}.chat-panel{position:fixed;right:18px;bottom:88px;z-index:83;width:min(340px,calc(100vw - 36px));background:#fff;border:1px solid #dbe3e7;box-shadow:0 14px 36px rgba(0,0,0,.24)}.chat-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;background:#0d171e;color:#fff}.chat-head strong{font-size:14px}.chat-head button{border:0;background:transparent;color:#fff;font-size:22px;line-height:1;cursor:pointer}.chat-log{display:grid;gap:9px;max-height:250px;overflow:auto;padding:12px;background:#f6f8f8}.chat-msg{max-width:88%;padding:8px 10px;border:1px solid #dbe3e7;background:#fff;font-size:12px}.chat-msg b{display:block;margin-bottom:2px;color:#c92732;font-size:11px}.chat-msg.user{margin-left:auto;background:#fff7db;border-color:#efd27a}.chat-form{display:grid;grid-template-columns:1fr auto;gap:8px;padding:10px;border-top:1px solid #dbe3e7}.chat-form input{min-width:0;border:1px solid #c8d1d5;padding:9px}.chat-form button{border:0;background:#c92732;color:#fff;padding:0 13px;font-weight:800;cursor:pointer}@media(max-width:560px){.service-robot{right:8px;bottom:4px;width:58px;height:74px}.chat-panel{right:8px;bottom:78px;width:calc(100vw - 16px)}}