index.css

* {
    margin: 0;
    padding: 0;
}

body {
    background: #f5f8f9;
}

header {
    width: 100%;
    height: 100px;
    background: #FFF;
}

header .nav {
    max-width: 1140px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}

header .nav .logo {
    margin-top: 30px;
    width: 105px;
    height: 30px;
    background: #f92525;
    text-align: center;
    color: white;
    line-height: 30px;
    font-size: 12px;
}

header .nav .right {
    display: flex;
}

header .nav .right i {
    margin-top: 42px;
    width: 20px;
    height: 20px;
    margin-left: 15px;
}

header .nav .right .logout {
    width: 110px;
    height: 40px;
    background: #f92525;
    text-align: center;
    color: white;
    line-height: 40px;
    margin-top: 30px;
    margin-left: 40px;
    font-size: 13px;
}

.navlist {
    max-width: 1140px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.navlist .left p:nth-child(1) {
    font-size: 30px;
    color: #262b2e;
    margin-top: 65px;
    margin-bottom: 10px;
}

.navlist .left p:nth-child(2) {
    font-size: 15px;
    color: #262b2e;
}

.navlist .right ul {
    display: flex;
}

.navlist .right ul li {
    list-style: none;
    margin-right: 28px;
    font-size: 13px;
    color: #262b2e;
}

.navlist .right ul li {
    list-style: none;
    margin-right: 28px;
    font-size: 13px;
    color: #262b2e;
}

.navlist .right ul li {
    width: 100%;
    height: 100%;
    padding-bottom: 10px;
}

.bd-bottom {
    border-bottom: 2px solid #ccc;
}

.echarts {
    max-width: 1140px;
    margin: 47px auto 0;
    display: flex;
    justify-content: space-between;
}

.echarts .ech_left {
    width: 560px;
    height: 290px;
    background: #FFF;
    box-sizing: border-box;
    padding: 10px;
    position: relative;
}

#banner {
    width: 520px;
    height: 280px;
    position: absolute;
    top: 50%;
    margin-top: -140px;
    left: 50%;
    margin-left: -260px;
}

.pic img {
    position: absolute;
}

.tabs {
    position: absolute;
    bottom: 10px;
    left: 200px;
}

.tabs li {
    width: 10px;
    height: 10px;
    border: 1px solid #fff;
    float: left;
    margin-left: 5px;
    border-radius: 100%;
    list-style: none;
}

.btn {
    width: 30px;
    height: 50px;
    background-color: rgba(0, 0, 0, .5);
    color: #fff;
    font-size: 30px;
    line-height: 50px;
    text-align: center;
    position: absolute;
    top: 50%;
    margin-top: -25px;
    cursor: pointer;
}

.btn:hover {
    background-color: rgba(0, 0, 0, .8);
    color: red;
}

.btn1 {
    left: 0;
}

.btn2 {
    right: 0;
}

.bg {
    background-color: red;
}

.echarts .ech_right {
    width: 560px;
    height: 290px;
    background: #FFF;
    box-sizing: border-box;
}

.echarts .ech_right .right_head {
    display: flex;
    justify-content: space-between;
    height: 110px;
    border-bottom: 1px solid #ccc;
}

.echarts .ech_right .right_head p {
    font-size: 18px;
    line-height: 110px;
    margin-left: 50px;
}

.echarts .ech_right .right_head .view {
    width: 95px;
    height: 40px;
    font-size: 13px;
    box-sizing: border-box;
    border: 2px solid #ccc;
    margin-right: 50px;
    margin-top: 40px;
    text-align: center;
    line-height: 40px;
}

.echarts .ech_right .right_bott {
    display: flex;
    justify-content: space-between;
}

.echarts .ech_right .right_bott .time {
    margin: 25px 50px 0 50px;
}

.echarts .ech_right .right_bott .time p {
    margin-top: 35px;
}

.echarts .ech_right .right_bott .username {
    margin-top: 25px;
}

.echarts .ech_right .right_bott .username p {
    margin-top: 35px;
}

.echarts .ech_right .right_bott .status {
    margin: 25px 50px 0 150px;
}

.echarts .ech_right .right_bott .status .solved {
    width: 65px;
    height: 30px;
    float: right;
    font-size: 13px;
    line-height: 30px;
    margin-top: 25px;
    box-sizing: border-box;
    text-align: center;
    color: white;
    background: #5dd054;
    border-radius: 4px;
}

.ech_data {
    max-width: 1140px;
    text-align: center;
    margin: 0 auto;
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.ech_data h3 {
    padding-top: 30px;
}

.ech_data .data_top {
    width: 100%;
    height: 350px;
    background: #fff;
}

.ech_data .data_left {
    margin-top: 20px;
    width: 560px;
    height: 375px;
    background: #fff;
}

.ech_data .data_right {
    margin-left: 20px;
    margin-top: 20px;
    width: 560px;
    height: 375px;
    background: #FFF;
}

footer {
    width: 100%;
    height: 290px;
    margin-top: 50px;
    background: #202124;
    position: relative;
    display: flex;
}

footer .fbox {
    min-width: 1140px;
    margin: 0 auto;
    display: flex;
}

footer .fbox .foot_left {
    flex-basis: 180px;
}

footer .fbox .foot_left .foot_logo {
    width: 105px;
    height: 30px;
    text-align: center;
    line-height: 30px;
    color: white;
    font-size: 12px;
    background: #f92525;
    margin-top: 80px;
}

footer .fbox .foot_right {
    flex: 1;
    display: flex;
}

footer .fbox .foot_right .footbox {
    margin-top: 80px;
    margin-right: 110px;
}

footer .fbox .foot_right .footbox p {
    color: white;
    font-size: 13px;
}