body {
    background-image: url(/static/bg.jpg);
    background-size: 100% 100%;
    margin: 0;
    position: relative;
}

.header {
    position: absolute;
    height: 50px;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.footer {
    position: absolute;
    height: 50px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer a {
    color: #FFFFFF;
    font-size: 14px;
}

.footer a:not(:first-child) {
    margin-right: 10px;
}

.logo {
    position: absolute;
    left: 0;
    width: auto;
    height: 100%;
    display: flex;
    align-items: center;
}

.logo-img {
    width: 26px;
    height: 26px;
}

.logo-word {
    font-size: 18px;
    color: #FFFFFF;
}

.main {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
}

.slogan {
    display: flex;
    flex-wrap: wrap;
    align-content: space-between;
}

.slogan-en {
    font-weight: bold;
    color: #FFFFFF;
    letter-spacing: 3px;
}

.slogan-en>span {
    color: #1865FE;
}

.slogan-title {
    font-weight: bold;
    color: #FFFFFF;
}

.slogan-desc {
    color: #FFFFFF;
    opacity: 0.8;
}

@media screen and (min-width: 1200px) {
    .header {
        width: 1200px;
    }

    .main {
        width: 1200px;
        height: 520px;
        justify-content: space-between;
        align-items: center;
    }

    .slogan {
        width: 400px;
        height: 200px;
    }

    .slogan-en {
        font-size: 60px;
        letter-spacing: 3px;
    }

    .slogan-title {
        font-size: 40px;
    }

    .slogan-desc {
        font-size: 16px;
    }

    .main-img {
        width: 751px;
        height: 513px;
    }
}

@media screen and (max-width: 1199px) {
    .header {
        width: calc(100% - 40px);
    }

    .main {
        width: calc(100% - 40px);
        height: auto;
        flex-wrap: wrap;
    }

    .slogan {
        width: 100%;
        height: 200px;
    }

    .slogan-en {
        width: 100%;
        font-size: 60px;
        letter-spacing: 3px;
    }

    .slogan-title {
        width: 100%;
        font-size: 40px;
    }

    .slogan-desc {
        width: 100%;
        font-size: 16px;
    }

    .main-img {
        margin-top: 70px;
        width: 100%;
        max-width: 751px;
        height: auto;
    }
}

@media screen and (max-width: 750px) {
    .logo-img {
        width: 20px;
        height: 20px;
    }

    .logo-word {
        font-size: 14px;
    }

    .slogan {
        height: 150px;
    }

    .slogan-en {
        font-size: 48px;
        letter-spacing: 2px;
    }

    .slogan-title {
        font-size: 32px;
    }

    .slogan-desc {
        font-size: 14px;
    }

    .footer a {
        font-size: 10px;
    }
}