html,
body {
    padding: 0;
    margin: 0;
    font: inherit;
    font-size: 100%;
    vertical-align: baseline;
    border: 0
}

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
    display: block
}

body {
    padding: 0;
    margin: 0
}
a {text-decoration: none;color: #fff;}

ol,
ul {
    list-style: none
}

blockquote,
q {
    quotes: none
}

blockquote:before,
blockquote:after,
q:before,
q:after {
    content: "";
    content: none
}

table {
    border-spacing: 0;
    border-collapse: collapse
}

html,
body {
    width: 100%;
    height: 100%;
    min-width: 1400px;
}
body {
    padding-top: 90px;
}

.header-container {
    height: 90px;
    background: #444444;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
}
.header-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;

}
.header-wrap img {
    width: 216px;
}

.menu-wrap {
    height: 100%;
    display: flex;
    align-items: center;
    font-size: 14px;
    color: #FFFFFF;

    gap: 48px;
}
.menu-item {
    position: relative;
    cursor: pointer;

}
.menu-item a {
    color: #fff;
    text-decoration: none;
}
.menu-item:hover{ 
    opacity: 0.7;
}
.menu-item.active::after {
    position: absolute;
    content: '';
    width: 20px;
    height: 3px;
    background: #fff;
    left: 50%;
    transform: translate(-50%, 0);
    bottom: -10px;
}
.base-container {
    max-width: 1200px;
    margin: 0 auto;
}

.img-wrap {
    text-align: center;

}

.img-wrap img {
    width: 1161px;
}

.title {
    font-weight: bold;
    font-size: 32px;
    color: #444444;
    line-height: 45px;
    display: flex;
    align-items: center;
}

.title::before {
    content: '';
    width: 5px;
    height: 20px;
    background: #8720DE;
    margin-right: 10px;
}

.product-title {
    padding-top: 125px;
    margin-bottom: 86px;

}

.product-container {
    background: #F5F5F5;
    padding-bottom: 200px;

}

.des-title {
    padding-top: 114px;
    margin-bottom: 133px;
}

.des-text {
    font-weight: bold;
    font-size: 16px;
    color: #7F7F7F;
    line-height: 24px;
    width: 468px;
    padding-left: 30px;
}

.des-text span {
    color: #8720DE;

}

.des-wrap {
    display: flex;
    justify-content: space-between;
    padding-bottom: 165px;

}

.des-right {
    padding-top: 121px;
}

.des-right img {
    width: 468px;
}

.contact-us-container {
    background: #444444;
    padding: 49px 0;
}

.footer-container {
    display: flex;
}

.footer-title {
    font-weight: 600;
    font-size: 18px;
    color: #FFFFFF;
    line-height: 25px;
    margin-bottom: 10px;
}

.footer-des {
    font-weight: 300;
    font-size: 12px;
    color: #FFFFFF;
    line-height: 22px;
}

.footer-left {
    margin-right: 289px;
}

.tips-container {
    background: #373737;
    padding-top: 33px;
    padding-bottom: 52px;
}

.tips-title {
    font-weight: 600;
    font-size: 18px;
    color: #FFFFFF;
    line-height: 25px;
    margin-bottom: 30px;
}

.tips-des {
    font-size: 16px;
    color: #7F7F7F;
    line-height: 24px;
}

.download-container {
    background: url(../images/backgrond.jpg) no-repeat no-repeat center center;
    background-size: cover;
    height: 900px;
    
}

.download-wrap {
    display: flex;
    justify-content: space-between;
    height: 100%;
}
.download-left {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}
.download-right {
    width: 590px;
    padding-top: 350px;
    /* padding-bottom: 216px; */
}

.download-title {
    font-size: 46px;
    color: #FFFFFF;
    line-height: 55px;
}

.download-des {
    font-size: 24px;
    color: #FFFFFF;
    line-height: 37px;
    margin-top: 18px;
    margin-bottom: 34px;
}
.download-btn {

    width: 292px;
}