.section-1 {
    margin-top: 99px;
}

.requirement .title-mould {
    display: flex;
    flex-direction: column;
}

.section-requirement .container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 100px 0;
}

.section-requirement h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

.section-requirement .ctent {
    color: #666;

}

.section-requirement .title-mould {
    margin-top: 40px;
}

.section-requirement .chead {
    color: #666;
    margin: 5px 0;
}

.section-support {
    padding: 80px 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.section-support h1 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 10px;
}

.section-support p {
    text-align: center;
    color: #666;
}

.section-support .support-list {
    display: flex;
    flex-direction: column;
    margin-top: 60px;
}

.section-support .chead {
    font-size: 18px;
    color: #333333;
    margin-bottom: 15px;
}

.section-install {
    padding: 60px 0;
}

.section-install .container {
    max-width: 1200px;
}

.section-install h1 {
    font-size: 36px;
    text-align: center;
}

.section-install p {
    font-size: 16px;
    color: #666;
    text-align: center;
    font-style: italic;
    margin-bottom: 60px;
}

.section-install .list-install-centen {
    margin-bottom: 20px;
}

.section-install .list-install-centen img {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 40px auto;
    max-width: 600px;
}

.section-install .deimg-container .big-img {
    max-width: 635px;
}

.section-install .deimg .deimg-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.section-install .deimg .deimg-code {
    width: 145px;
    height: 145px;
    left: 31.4%;
    top: 29.7%;
}

@media screen and (max-width: 996px) {
    .section-support {
        padding: 20px 0 40px;
    }

    .section-install .container {
        max-width: 100%;
    }

    .section-install {
        padding: 20px 0 40px;
    }

    .section-install .deimg .deimg-code {
        width: 84px;
        height: 85px;
        position: absolute;
        left: 14.8%;
        top: 29%;
    }
}