.rg-chat-btn{
    position:fixed;
    right:18px;
    bottom:18px;
    width:62px;
    height:62px;
    border-radius:50%;
    border:1px solid rgba(255,255,255,.45);
    background:rgba(255,255,255,.78);
    backdrop-filter:blur(22px);
    -webkit-backdrop-filter:blur(22px);
    box-shadow:0 18px 45px rgba(15,23,42,.18);
    z-index:99999;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:0;
    cursor:pointer;
}

.rg-chat-btn img{
    width:42px;
    height:42px;
    object-fit:contain;
}

.rg-chat-box{
    position:fixed;
    right:18px;
    bottom:92px;
    width:380px;
    max-width:calc(100vw - 36px);
    border-radius:26px;
    display:none;
    overflow:hidden;
    z-index:99999;
    font-family:Montserrat,Arial,sans-serif;
    background:rgba(255,255,255,.84);
    backdrop-filter:blur(28px);
    -webkit-backdrop-filter:blur(28px);
    border:1px solid rgba(255,255,255,.58);
    box-shadow:0 24px 70px rgba(15,23,42,.22);
}

.rg-chat-head{
    padding:15px 16px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    background:rgba(255,255,255,.48);
    border-bottom:1px solid rgba(255,255,255,.55);
}

.rg-chat-brand{
    display:flex;
    gap:10px;
    align-items:center;
}

.rg-chat-head img{
    width:34px;
    height:34px;
    object-fit:contain;
}

.rg-chat-title{
    margin:0;
    font-size:15px;
    font-weight:800;
    color:#111827;
}

.rg-chat-subtitle{
    margin:0;
    font-size:11px;
    color:#64748b;
}

.rg-chat-close{
    border:0;
    background:rgba(255,255,255,.75);
    width:30px;
    height:30px;
    border-radius:50%;
    cursor:pointer;
}

.rg-chat-body{
    padding:14px;
    height:420px;
    overflow-y:auto;
    background:linear-gradient(180deg,rgba(255,255,255,.32),rgba(248,250,252,.68));
}

.rg-search{
    width:100%;
    border:1px solid #e5e7eb;
    border-radius:16px;
    padding:11px 13px;
    font-size:13px;
    outline:none;
    margin-bottom:12px;
}

.rg-search:focus{
    border-color:#ff9c22;
    box-shadow:0 0 0 3px rgba(255,156,34,.14);
}

.rg-topic{
    background:rgba(255,255,255,.88);
    border:1px solid rgba(226,232,240,.9);
    border-radius:18px;
    padding:12px;
    margin-bottom:10px;
    cursor:pointer;
    box-shadow:0 8px 22px rgba(15,23,42,.05);
}

.rg-topic-title{
    font-weight:800;
    font-size:13px;
    color:#111827;
}

.rg-question{
    background:#fff7ed;
    border:1px solid #fed7aa;
    color:#9a3412;
    border-radius:14px;
    padding:9px 10px;
    font-size:12px;
    margin-top:8px;
    cursor:pointer;
}

.rg-answer{
    background:#ffffff;
    border:1px solid #edf0f4;
    border-radius:16px;
    padding:11px 13px;
    font-size:13px;
    line-height:1.5;
    margin-top:8px;
    color:#111827;
}

.rg-back{
    border:0;
    background:#111827;
    color:#fff;
    border-radius:14px;
    padding:8px 12px;
    font-size:12px;
    margin-bottom:12px;
    cursor:pointer;
}

.rg-empty{
    background:#fff;
    border:1px solid #edf0f4;
    border-radius:16px;
    padding:12px;
    font-size:13px;
    color:#64748b;
}

@media(max-width:480px){
    .rg-chat-box{
        right:10px;
        bottom:84px;
        width:calc(100vw - 20px);
    }

    .rg-chat-body{
        height:390px;
    }
}