.head_box .content_box .logo_box {
    margin-left: 0.8rem;
}

.main_box {
    max-width: 1100px;
    margin-top: 7rem;
}

@media (max-width: 768px) {
    .main_box {
        margin-top: 3.782rem;
    }
}

.main_box .title_box {
    padding: 1.2rem 0.8rem;
    margin: 0 auto;
    text-align: center;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main_box .title_box .menu {
    width: 20px;
    height: auto;
}

.main_box .title_box span {
    font-size: 16px;
    color: #CFCDE4 ;
    font-weight: 700;
    margin-left: -0.8rem;
}

.main_box .chat_box {
    padding: .8rem .8rem 3rem;
    font-size: 14px;
    color: #333;
    line-height: 1.5rem;
}

.main_box .send_box {
    width: 100%;
    max-width: 1100px;
    position: fixed;
    bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main_box .send_box .form_box {
    position: relative;
    margin-top: -.4rem;
    width: 100%;
}

.main_box .send_box .form_box .input {
    padding: .3rem 0 0 .3rem;
    min-height: 18px;
    font-family: PingFangSC-Regular, PingFang SC;
    display: block;
    font-size: 14px;
    line-height: 18px;
    overflow: hidden;
    white-space: pre-wrap;
    word-wrap: break-word;
    word-break: break-word;
    max-height: 100px;
    width: 80%;
    border: 1px solid #078AFE;
    border-radius: 5px;
    background: #2A2E42;
    color: #CFCDE4;
    margin-left: .8rem;
}

.main_box .send_box .form_box pre {
    visibility: hidden;
    max-height: 100px;
}

.main_box .send_box .form_box textarea {
    resize: none;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    background-color: transparent;
}

.main_box .send_box button {
    padding: .4rem .8rem;
    background: -webkit-linear-gradient(left, #8533ED, #008EFE);
    color: #fff;
    border: none;
    border-radius: 20px;
    width: 20%;
    margin-right: .8rem;
}

.main_box .options_box {
    width: 100%;
    max-width: 1100px;
    height: 6.8rem;
    position: fixed;
    bottom: 0;
    z-index: 999;
    background: #2A2E42;
    border-radius: 12px 12px 0 0;
}

.main_box .options_box .close_box {
    float: right;
    margin-right: .5rem;
    margin-top: .5rem;
}

.main_box .options_box .close_box img {
    width: 1rem;
    vertical-align: text-bottom;
    padding-right: .2rem;
    float: right;
    text-align: left;
}

.main_box .options_box .option_box {
    padding: 1rem;
    color: #CFCDE4;
    font-size: 13px;
}

.main_box .options_box .option_box .title {
    text-align: center;
    font-size: 13px;
}

.main_box .options_box .option_box .items_box {
    margin-top: .5rem;
    display: flex;
    justify-content: left;
}

.main_box .options_box .option_box .items_box .item {
    margin-right: 1rem;
    text-align: center;
    font-size: 12px;
    color: #9191A8;
}

.main_box .options_box .option_box .items_box .item .icon_box {
    background: #fff;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    margin-bottom: .5rem;
}

.main_box .options_box .option_box .items_box .item .icon_box img {
    width: 1.5rem;
    height: 1.5rem;
    margin-top: .25rem;
}

.main_box .chat_box{
    overflow: scroll;
    margin: 0 auto;
}

.main_box .chat_box .msg_box {
    padding: .8rem .8rem 3rem;
    font-size: 14px;
    color: #9191A8;
    line-height: 1.5rem;
    height: 520px;
    background-color: #2A2E42;
    overflow-y: scroll;
}

.main_box .chat_box .msg_box .sender_box {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-bottom: .8rem;
}

.main_box .chat_box .msg_box .sender_box .content {
    margin-right: .5rem;
    background: #04be02;
    padding: .3rem .5rem;
    border-radius: 6px;
    color: #fff;
}

.main_box .chat_box .msg_box .receiver_box .avatar {
    width: 2rem;
    border-radius: 50%;
}

.main_box .chat_box .msg_box .sender_box .avatar {
    width: 2rem;
    border-radius: 50%;
}

.main_box .chat_box .msg_box .line {
    text-align: center;
    padding: .4rem 0 1.2rem;
}

.main_box .chat_box .msg_box .receiver_box {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom: .8rem;
}

.main_box .chat_box .msg_box .receiver_box .content {
    margin-left: .5rem;
    background: #f7f7f7;
    padding: .3rem .5rem;
    border-radius: 6px;
}