header {
    position: sticky;
    width: 100%;
    height: 60px;
    background: #fff;
    z-index: 8888;
    display: flex;
    justify-content: center;
}
header .header {
    width: 1200px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
header .header h1 {
    width: 120px;
}
header .header h1 a {
    width: 100%;
}
header .header h1 a img {
    width: 100%;
}
header .header button {
    width: 30px;
}
header .header button img {
    width: 100%;
}

.navBg {
    background: rgba(0, 0, 0, 0.3);
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    z-index: 9999;
}
nav {
    background-color: #fff;
    display: flex;
    flex-flow: column nowrap;
    width: 30%;
    height: 100%;
    position: fixed;
    bottom: 0;
    right: 0;
    z-index: 9999;
    padding-top: 100px;
}
nav a {
    font-size: 20px;
    padding: 30px;
    font-weight: 600;
    border-bottom: 1px solid #ededef;
    background-image: url(../img/pc-menu-arrow.png);
    background-repeat: no-repeat;
    background-size: 15px;
    background-position: right 30px center;
}
nav a.on {
    color: #0a54d1;
}
nav button {
    width: 30px;
    position: absolute;
    top: 30px;
    right: 30px;
}
nav button img {
    width: 100%;
}

main {
    padding-bottom: 100px;
}
main .bnr {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    position: relative;
}
main .bnr > img {
    width: 100%;
}
main .bnr .text {
    position: absolute;
    left: 40px;
    top: 50%;
    transform: translateY(-50%);
}
main .bnr .text h2 {
    font-size: 30px;
    color: #fff;
    line-height: 1.4;
    border-bottom: 1px solid #aeaeac;
    margin-bottom: 20px;
    padding-bottom: 20px;
}
main .bnr .text h2 span {
    font-size: 30px;
    font-weight: 900;
    color: #fff;
    line-height: 1.4;
}
main .bnr .text p {
    font-size: 18px;
    color: #cfcfce;
    line-height: 1.4;
}
main .bnrMo {
    display: none;
    width: 100%;
    position: relative;
}
main .bnrMo > img {
    width: 100%;
}
main .bnrMo .text {
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
}
main .bnrMo .text h2 {
    font-size: 30px;
    color: #fff;
    line-height: 1.4;
    border-bottom: 1px solid #aeaeac;
    margin-bottom: 20px;
    padding-bottom: 20px;
}
main .bnrMo .text h2 span {
    font-size: 30px;
    font-weight: 900;
    color: #fff;
    line-height: 1.4;
}
main .bnrMo .text p {
    font-size: 18px;
    color: #cfcfce;
    line-height: 1.4;
}
main .s1 {
    padding: 80px 0;
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    gap: 20px;
}
main .s1 h3 {
    font-size: 18px;
    font-weight: 800;
    line-height: 1.4;
    color: #0a54d1;
}
main .s1 pre {
    font-size: 16px;
    line-height: 1.4;
}
main .s2 {
    padding: 80px 0;
    background: #eff0f2;
}
main .s2 .menu {
    display: flex;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}
main .s2 .menu a {
    width: 25%;
    position: relative;
}
main .s2 .menu a:nth-child(even) {
    margin-top: 40px;
}
main .s2 .menu a:nth-child(odd) {
    margin-bottom: 40px;
}
main .s2 .menu a > img {
    width: 100%;
}
main .s2 .menu a > h3 {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    width: 100%;
    text-align: center;
}
main .s2 .menuMo {
    display: none;
    gap: 1.5rem;
}
main .s2 .menuMo .left {
    display: flex;
    flex-flow: column nowrap;
    gap: 1.5rem;
    width: 50%;
}
main .s2 .menuMo .left a {
    width: 100%;
    position: relative;
}
main .s2 .menuMo .left a img {
    width: 100%;
}
main .s2 .menuMo .left a h3 {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.6rem;
    font-weight: 800;
    color: #fff;
    width: 100%;
    text-align: center;
}
main .s2 .menuMo .right {
    margin-top: 4rem;
    display: flex;
    flex-flow: column nowrap;
    gap: 1.5rem;
    width: 50%;
}
main .s2 .menuMo .right a {
    width: 100%;
    position: relative;
}
main .s2 .menuMo .right a img {
    width: 100%;
}
main .s2 .menuMo .right a h3 {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.6rem;
    font-weight: 800;
    color: #fff;
    width: 100%;
    text-align: center;
}

#sub {
    max-width: 1200px;
    margin: 0 auto;
}
main .subBnr {
    width: 100%;
    position: relative;
    margin-bottom: 100px;
}
main .subBnr h2 {
    font-size: 30px;
    font-weight: 800;
    color: #0a54d1;
    padding: 30px 0;
    width: 80%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: -50px;
    background: #fff;
    text-align: center;
    box-shadow: 1px 1px 5px 1px rgba(0, 0, 0, 0.1);
}
main .subBnr img {
    width: 100%;
}
main > h3 {
    font-size: 16px;
    font-weight: 800;
    color: #0073dd;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #abb5cb;
}
main > pre {
    font-size: 16px;
    line-height: 1.4;
    margin-bottom: 40px;
}
main > pre b {
    font-size: 16px;
    color: #0073dd;
    margin-bottom: 10px;
    display: inline-block;
}

@media screen and (max-width: 1200px) {
    header {
        padding: 0 1.5rem;
        height: 5rem;
    }
    header .header h1 {
        width: 10rem;
    }
    header .header button {
        width: 2rem;
    }
    nav {
        width: 70%;
        padding-top: 6rem;
    }
    nav button {
        width: 2rem;
        top: 1.5rem;
        right: 1.5rem;
    }
    nav a {
        font-size: 1.8rem;
        padding: 2rem;
        background-position: right 1.5rem center;
        background-size: 1rem;
    }
    main .bnrMo .text h2 {
        font-size: 2rem;
        margin-bottom: 1.5rem;
        padding-bottom: 1.5rem;
    }
    main .bnrMo .text h2 span {
        font-size: 2rem;
    }
    main .bnrMo .text p {
        font-size: 1.6rem;
    }
    main .s1 {
        padding: 6rem 1.5rem;
    }
    main .s2 {
        padding: 6rem 1.5rem;
    }
    main .subBnr {
        padding: 0 1.5rem;
        margin-bottom: 6rem;
    }
    main .subBnr h2 {
        font-size: 2rem;
        padding: 2rem 0;
        bottom: -3rem;
    }
    main > h3 {
        margin: 0 1.5rem 20px;
    }
    main > pre {
        padding: 0 1.5rem;
    }
}
@media screen and (max-width: 768px) {
    main .bnr {
        display: none;
    }
    main .bnrMo {
        display: block;
    }
    main .s2 .menu {
        display: none;
    }
    main .s2 .menuMo {
        display: flex;
    }
}