body {
    display: flex;
    flex-direction: column;
    background: rgb(245,246,247);
}

.header {
    width: 100%;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 15px;
    border-bottom: 1px solid #e8e8e8;
}
.header_left {
    display: flex;
    align-items: center;
}
.header_left img {
    width: 30px;
    height: 30px;
    margin-right: 10px;
    border-radius: 100%;
}

.content {
    display: flex;
    height: calc(100vh - 45px - 150px);
}
.content .content_left {
    width: 80%;
    height: 100%;
    overflow-y: scroll;
    padding: 15px;
    border-right: 1px solid #e8e8e8;
}
.content .content_left li {
    display: flex;
    margin-bottom: 25px;
}
.content .content_left li .avth {
    width: 30px;
    height: 30px;
    margin-right: 10px;
    border-radius: 100%;
}
.content li .message {}
.content li .message .name {
    font-size: 14px;
}
.content li .message .message_text {
    padding: 5px 10px;
    border-radius: 4px;
    word-break: break-all;
    max-width: calc(100vw - 274px);
    background: #fff;
    color: #000;
}

.content_left .right {
    justify-content: flex-end;
}

.content_left .right .avth {
    order: 2;
    margin-right: 0 !important;
    margin-left: 10px;
}

.content_left .right .name {
    text-align: right;
}
.content_left .right .message_text {
    color: #fff !important;
    background: rgb(30,110,255) !important;
}
.content_left .system {
    justify-content: center;
}

.content_left .system span {
    background: #d8d3d3;
    color: #878686;
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 12px;
}

.content_right {
    width: 20%;
    height: 100%;
    padding: 6px 15px;
}

.content_right .title {
    height: 45px;
    line-height: 45px;
    border-bottom: 1px solid #e8e8e8;
    margin-bottom: 15px;
}
.content_right ul {
    height: calc(100% - 60px);
    overflow-y: scroll;
}
.content_right ul li {
    display: flex;
    height: 35px;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.content_right .user {}
.content_right i {}
.content_right .user img {
    width: 25px;
    height: 25px;
    margin-right: 5px;
    border-radius: 100%;
}
.content_right .user span {}

.footer {
    padding: 0 15px;
    border-top: 1px solid #e8e8e8;
    height: 150px;
}
.footer_menu {
    height: 35px;
    display: flex;
    align-items: center;
    box-sizing: border-box;
    position: relative;
}
.footer_menu i {
    font-size: 18px;
    margin-right: 20px;
    cursor: pointer;
}
.footer_input {
    outline: none;
    width: 100%;
    height: calc(150px - 36px);
    font-size: 16px;
    overflow-y: scroll;
    line-height: 19px;
}

.footer_input .smiling_img {
    width: 25px;
    height: 25px;
}

.footer_input .gif_img {
    width: 80px;
    height: 80px;
    vertical-align: bottom;
}

.footer_topmenu {
    position: absolute;
    width: 400px;
    height: 246px;
    background: #fff;
    bottom: 35px;
    left: -15px;
    box-shadow: 1px -3px 10px #c3bebe;
    border-radius: 4px;
}
.footer_topmenu .menu_title {
    height: 40px;
    line-height: 40px;
    padding: 0 10px;
    border-bottom: 1px solid #e8e8e8;
    box-sizing: border-box;
}
.footer_topmenu .menu_content {
    overflow-y: scroll;
    padding: 0 10px;
    width: 100%;
    height: calc(100% - 75px);
}
.menu_content div {
    display: none;
}
.menu_content .active {
    display: block !important;
}
.footer_topmenu .menu_footer {
    height: 35px;
    display: flex;
    align-items: center;
    border-top: 1px solid #e8e8e8;
    box-sizing: border-box;
}
.footer_topmenu .menu_footer li {
    margin: 0px 10px;
    cursor: pointer;
}
.menu_footer .active {
    color: red;
}
.smiling {
    padding: 10px 0;
}
.smiling img {
    width: 25px;
    height: 25px;
    cursor: pointer;
}
.gif img {
    width: 89px;
    height: 89px;
}

.smiling_img {
    width: 25px;
    height: 25px;
}