body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
textarea,
p,
blockquote,
th,
td,
input,
select,
textarea,
button,
img {
    padding: 0;
    margin: 0;
    line-height: 1;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    word-break: break-all;
    word-wrap: break-word;
    min-width: 1280px;
}

a {
    text-decoration: none;
}

a:link {
    text-decoration: none;
    /* 鎸囨甯哥殑鏈璁块棶杩囩殑閾炬帴*/
}

a:visited {
    text-decoration: none;
    /*鎸囧凡缁忚闂繃鐨勯摼鎺�*/
}

a:hover {
    text-decoration: none;
    /*鎸囬紶鏍囧湪閾炬帴*/
}

a:active {
    text-decoration: none;
    /* 鎸囨鍦ㄧ偣鐨勯摼鎺�*/
}

img {
    /* width: 100%;
    height: 100%; */
    border: none;
}

/*================================*/
.nav {
    height: 98px;
    width: 100%;
    background: #fff;
}

.nav .nav_content {
    width: 1100px;
    height: 98px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav .nav_content>img {
    width: 281px;
    height: 44px;
}

.nav .nav_content .nav_bar {



    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav .nav_content .nav_bar>.App_box {
    color: #333333;
    font-size: 16px;
    margin-left: 60px;
    vertical-align: middle;
    cursor: pointer;
    position: relative;
    box-shadow: 1px 1px 6px 3px rgb(0 0 0 / 10%);
    padding: 10px 25px;
    border-radius: 20px;
}
.nav .nav_content .nav_bar >.App_box .downApp{
    display: inline-block;
    width: 18px;
    height: 18px;
    margin-right: 5px;
    vertical-align: middle;
}
.nav .nav_content .nav_bar>.App_box  .qrcode{
    position: absolute;
    transition:all 1s;
    -moz-transition:all 1s;
    -webkit-transition:all 1s;
    -o-transition:all 1s;
    visibility: hidden;
    opacity: 0;
    position: absolute;
    top: 45px;
    left: -90px;
    z-index: 99;
    background: white;
    border-radius: 10px;
    box-shadow: 1px 1px 6px 3px rgb(0 0 0 / 10%);
}
.nav .nav_content .nav_bar>.App_box:hover .qrcode{
    visibility: visible;
    opacity: 1;
}
.nav .nav_content .nav_bar>.App_box  .qrcode .qrcode_box{
    display: flex;
    word-break: keep-all;
    padding: 12px 30px;
}
.nav .nav_content .nav_bar>.App_box  .qrcode .qrcode_box>span{
    display: inline-block;
    width: 1px;
    margin: 0 15px;
    background: #999;
}
.nav .nav_content .nav_bar>.App_box  .qrcode .qrcode_box>div{
    text-align: center;
}
.nav .nav_content .nav_bar>.App_box  .qrcode .qrcode_box>div p{
    font-size: 14px;
    line-height: 20px;
}
.nav .nav_content .nav_bar>.App_box  .qrcode .qrcode_box>div img{
    width: 96px;
    height: 96px;
}

.middle_1 {
    height: 520px;
    width: 100%;
    background: yellow;
    background: url('./pic/bg_1.png') no-repeat;
    background-size: 100% 100%;
    background-position: center center;
    background-size: cover;
}

.middle_1_content {
    position: relative;
    width: 1270px;
    margin: 0 auto;
    padding-top: 110px;

}

.middle_1_content .left {
    position: absolute;
    top: 51px;
    right: -20px;
}

.middle_1_content .left>img {
    width: 685px;
    height: 469px;
}

.middle_1_content p:nth-child(1)>img {
    width: 493px;
    height: 169px;
    margin-bottom: 41px;
    margin-left: 100px
}

.middle_1_content p:nth-child(2)>img {
    width: 605px;
    height: 450x;
}

.middle_2 {
    height: 990px;
}

.middle_2_content {
    position: relative;
    width: 950px;
    margin: 0 auto;
    padding-top: 165px;
}

.middle_2_content .top {
    text-align: center;
    margin-bottom: 85px;
}

.middle_2_content .top>img {
    width: 371px;
    height: 105px;
}

.middle_2_content .middle>img {
    width: 518px;
    height: 485px;
}

.middle_2_content .middle>.advantage {
    font-size: 42px;
    padding-bottom: 79px;
}

.middle_2_content .middle>.text {
    display: flex;
    padding-bottom: 43px;
}

.middle_2_content .middle>.text div:last-child {
    font-size: 26px;
    padding-top: 4px;
}

.middle_2_content .middle>.text img {
    width: 33px;
    height: 35px;
}

.middle_2_content .middle>.text .text_box {
    min-width: 128px;
    display: flex;
    flex-direction: column;
    padding: 0 11px 0 25px;
}

.middle_2_content .middle .text .text_box span:first-child {
    font-size: 26px;
    padding: 4px 0 13px 0;
}

.middle_2_content .middle>.text>.text_box span:last-child {
    font-size: 16px;
    color: #8B8B8B;
}

.middle_2_content .phone {
    position: absolute;
    top: 320px;
    right: 0;
}

.middle_2_content .phone>img {
    width: 364px;
    height: 750px;
}

.middle_3 {
    height: 905px;
    width: 100%;
    padding-top: 162px;
    background: url("./pic/bg_2.png") no-repeat;
    background-size: 100% 100%;
    background-position: center center;
    background-size: cover;
}

.middle_3_content p:nth-child(1) {
    margin-bottom: 90px;
}

.middle_3_content p:nth-child(1) img {
    width: 371px;
    height: 105px;
}

.middle_3_content .middle_3_content_bot .middle_3_content_bot_box {
    width: 991px;
    height: 421px;
    margin: 0 auto;
    position: relative;
}

.middle_3_content .middle_3_content_bot .middle_3_content_bot_box img {
    width: 991px;
    height: 421px;
}

.middle_3_content .middle_3_content_bot .middle_3_content_bot_box .introduce {
    position: absolute;
    top: 103px;
    left: 206px;
    font-size: 30px;
    font-weight: 600;
}

.middle_3_content .middle_3_content_bot .middle_3_content_bot_box .introduce_content {
    position: absolute;
    top: 173px;
    left: 57px;
    font-size: 18px;
    font-weight: 600;
    width: 412px;
    /* letter-spacing: 2px; */
    line-height: 28px;
    text-indent: 38px;
}

.middle_3_content p {
    text-align: center;
}

.middle_4 {
    height: 1045px;
}

.middle_4_content {
    position: relative;
    width: 1100px;
    margin: 0 auto;
    padding-top: 110px;
}

.middle_4_content>p {
    text-align: center;
    margin-bottom: 35px;
}

.middle_4_content>p img {
    width: 371px;
    height: 105px;
}

.middle_4_content .middle_4_content_middle {
    display: flex;
    justify-content: space-between;
}

.middle_4_content .middle_4_content_middle .middle_4_content_middle_box {
    width: 438px;
    height: 521px;
}

.middle_4_content .middle_4_content_middle .middle_4_content_middle_box img {
    width: 79px;
    height: 57px;
    padding-bottom: 46px;
}

.middle_4_content .middle_4_content_middle .middle_4_content_middle_box p:first-of-type {
    font-size: 36px;
    font-weight: bold;
    padding-bottom: 60px;
}

.middle_4_content .middle_4_content_middle .middle_4_content_middle_box p:last-of-type {
    width: 426px;
}

.middle_4_content .middle_4_content_middle .middle_4_content_middle_box p:last-of-type span {
    display: inline-block;
    text-indent: 38px;
    font-size: 16px;
    font-weight: bold;
    line-height: 28px;
}

.middle_4_content .middle_4_content_middle img:nth-child(2) {
    width: 556px;
    height: 793px;
}

.bottom {
    height: 120px;
    background: #333333;
}

.bottom .bottom_content {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.bottom .bottom_content .box {
    display: flex;
    align-items: center;
    height: 120px;
}

.bottom .bottom_content .box>img {
    width: 48px;
    height: 50px;
}

.bottom .bottom_content .box .word {
    margin-left: 21px;
}

.bottom .bottom_content .box .word p:nth-child(1) {
    font-size: 14px;
    color: #fff;
    margin-bottom: 8px;
}

.bottom .bottom_content .box .word .add_word {
    font-size: 14px !important;
    color: #fff !important;
    font-weight: normal !important;
}

.bottom .bottom_content .box .word p:nth-child(2) {
    font-size: 24px;
    color: #fff;
    font-weight: bold;
}