.content .header-bg {
    background-image: url(../image/wtt/bg.png?v=20211101);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    position: relative;
}

.content .header-bg>.text {
    width: 100%;
    text-align: center;
    font-size: 20px;
    color: #FFFFFF;
    position: absolute;
    bottom: 15%;
}

.content .download-wrapper {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.content .download-wrapper>.download-items {
    display: flex;
}

.content .download-wrapper>.download-items>.item {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 560px;
    height: 130px;
    background-image: url(../image/wtt/button-bg.png);
    background-position: center;
    background-repeat: no-repeat;
    cursor: pointer;
}

.content .download-wrapper>.download-items>.item .download-icon {
    width: 54px;
    height: 50px;
    margin-right: 30px;
}

.content .download-wrapper>.download-items>.item .title {
    font-size: 30px;
    color: #000000;
}

.content .download-wrapper>.download-items>.item .detail {
    font-size: 18px;
    color: #666666;
    margin-top: 4px;
}

.content .download-wrapper>.know-more {
    font-size: 20px;
    color: #666666;
    line-height: 28px;
    margin-top: 32px;
}

.content .download-wrapper>.know-more>a {
    color: #50AFC6;
    cursor: pointer;
}

.content .download-wrapper>.know-more>a:hover {
    text-decoration: underline;
}

.introduce-container>.function-introduce {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #000000;
    text-align: center;
    margin: 127px 0 116px 0;
}

.introduce-container>.function-introduce>.title {
    font-size: 30px;
}

.introduce-container>.function-introduce>.detail {
    font-size: 20px;
    margin-top: 38px;
    max-width: 1000px;
}

.introduce-container>.introduce-item {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 440px;
}

.introduce-container>.introduce-item-bg {
    background-color: #f1f1f1;
    background-image: url(../image/wtt/introduce-bg.png?v=20211101);
    background-position: center;
    background-repeat: no-repeat;
}

.introduce-container>.introduce-item>.introduce {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 1000px;
}

.introduce-container>.introduce-item>.introduce>.text {
    width: 500px;
    line-height: 24px;
}

.introduce-container>.introduce-item>.introduce>.text>.title {
    font-size: 24px;
    color: #333333;
}

.introduce-container>.introduce-item>.introduce>.text>.detail {
    font-size: 18px;
    line-height: 30px;
    color: #666666;
    margin-top: 16px;
}