section {
    width: 100%;
    background: #09080d;
}

section .section-1 {
    width: 1920px;
    height: 655px;
    margin: 0 auto;
    position: relative;
}

section .section-1 .section-1-1-img {
    width: 248px;
    height: 252px;
    position: absolute;
    top: 95px;
    left: 175px;
    z-index: 1;
    animation: moveMoon3 5s infinite linear;
}
section .section-1 .section-1-2-img {
    width: 710px;
    height: 454px;
    position: absolute;
    right: 175px;
    bottom: 0;
    z-index: 1;
    animation: moveMoon3 5s infinite linear;
}
section .section-1 .section-1-3-img {
    width: 418px;
    height: 363px;
    position: absolute;
    top: 131px;
    right: 600px;
    z-index: 2;
    animation: moveMoon 3s infinite linear;
}

section .section-1 .section-1-content {
    margin-left: 479px;
}
section .section-1 .section-1-content .section-1-logo {
    width: 78px;
    height: 78px;
    margin-bottom: 27px;
}
section .section-1 .section-1-content .section-1-title {
    width: 211px;
    height: 46px;
    margin-bottom: 30px;
}
section .section-1 .section-1-content .section-1-desc {
    line-height: 30px;
    color: rgba(255, 255, 255, 0.7);
}
section .section-1 .section-1-content .section-1-btn {
    width: 270px;
    height: 70px;
    background: #fd9100;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 26px;
}

section .section-1 .section-1-content .section-1-btn img {
    width: 153px;
    height: 41px;
}

section .section-1 .section-1-content .section-1-btn:hover {
    opacity: 0.9;
}

section .section-1 .section-1-content .section-1-version {
    color: rgba(255, 255, 255, 0.3);
    font-size: 12px;
    margin-top: 11px;
}
section.section-2-s {
    background-color: #111;
}
section .section-2 {
    width: 1920px;
    height: 865px;
    margin: 0 auto;
    background-image: url("../images/section-2-bg.png");
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-position: 0 0;
    text-align: center;
}

section .section-2 .section-2-title {
    width: 444px;
    height: 45.5px;
    margin-top: 100px;
}

section .section-2 .section-2-desc {
    width: 1200px;
    margin: 113px auto 0;
}
section .section-2 .section-2-desc-item {
    margin-bottom: 26px;
}
section .section-2 .section-2-desc-item img {
    width: 60px;
    height: 60px;
    margin-right: 29px;
}
section .section-2 .section-2-desc-item .section-2-desc-item-content {
    color: rgba(255, 255, 255, 0.7);
    font-size: 19px;
}

section .section-2 .section-2-desc-item .section-2-desc-item-content div:nth-child(1) {
    font-size: 23px;
    color: #fff;
    text-align: left;
    margin-bottom: 14px;
}

section.section-3-s {
    background-color: #141414;
}
section .section-3 {
    width: 1200px;
    height: 296px;
    margin: 0 auto;
    background-color: #141414;
    padding-top: 72px;
    box-sizing: border-box;
}

section .section-3 div {
    color: #fff;
    font-size: 42px;
    margin-bottom: 31px;
    font-weight: bold;
}

section .section-3 .section-3-btn {
    width: 200px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background-color: #fd9100;
    border-radius: 4px;
    font-size: 17px;
    cursor: pointer;
}
@keyframes moveMoon {
    from {
        top: 125px;
    }
    50% {
        top: 140px;
    }
    to {
        top: 125px;
    }
}

@keyframes moveMoon3 {
    from {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
    to {
        opacity: 0.6;
    }
}