* {
    box-sizing: border-box;
}
:root {
    --padding: 0 20px;
}
main {
    margin-top: 60px;
    padding-bottom: 40px;
}
.inner {
    max-width: 1100px;
    padding: 0 15px;
    height: 100%;
    width: 100%;
    margin: 0 auto;
}

/* header */
header {
    position: fixed;
    left: 0; top: 0;
    width: 100%; height: 60px;
    background: #fff;
    z-index: 9990;
}
header .header_inner {
    position: relative;
    max-width: 1100px;
    padding: 0 15px;
    height: 100%;
    width: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
header .header_inner a {
    display: block;
    height: 28px;
}
header .header_inner a img {
    height: 100%;
}
header .header_inner .menu_ico {
    display: block;
    width: 25px; height: 25px;
    background: url(../img/ham.png) no-repeat center/contain;
    cursor: pointer;
}

/* nav */
nav {
    display: none;
    position: fixed;
    right: 0; top: 60px;
    width: 100%; height: 90px;
    border-top: 1px solid #029347;
    box-shadow: 0px 8px 9px -2px rgba(0, 0, 0, 0.1);
    z-index: 9980;
    background: #fff;
}
nav .top {
    display: none;
}
nav .inner {
    padding: 0 50px;
}
.nav_list {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}
.nav_list li {
    height: 100%;
}
.nav_list li a {
    display: flex;
    align-items: center;
    height: 100%;
    font-size: 17px;
    color: #8A9083;
    transition: .2s ease-in-out;
}
.nav_list li a:hover {
    color: #78AD22;
    font-weight: 700;
}
.nav_list li.on a {
    color: #78AD22;
    font-weight: 700;
}
.back {
    display: none;
    position: fixed;
    left: 0; top: 0;
    width: 100%; height: 100vh;
    background: rgba(0, 0, 0, 0.4);
    z-index: 9995;
}

/* index */
.index_banner {
    background: #F8F9FD;
    padding-top: 60px;
}
.index_banner .inner {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 15px;
}
.index_banner .inner h1 {
    font-size: 18px;
    color: #fff;
    padding: 6px 15px;
    border-radius: 20px;
    background: #FE6D38;
    font-weight: 500;
}
.index_banner .inner pre {
    text-align: center;
    line-height: 1.4;
    font-size: 17px;
    font-weight: 500;
}
.index_banner .inner img {
    display: block;
    height: 240px;
}
.index_btns {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 70px;
    gap: 20px;
}
.index_btns li {
    width: calc(50% - 10px);
    height: 230px;
}
.index_btns li.cont {
    border: 1px solid #E6E6E6;
    border-radius: 25px;
    display: flex;
    justify-content: center;
    flex-direction: column;
    padding: 10px 20px;
    gap: 18px;
}
.index_btns li a {
    display: block;
    width: 100%;
    height: 100%;
}
.index_btns li a img {
    display: block;
    width: 100%; height: 100%;
}
.index_btns li.cont p {
    font-size: 22px;
    font-weight: 800;
    color: #FE6831;
}
.index_btns li.cont span {
    font-size: 17px;
    line-height: 1.4;
    font-weight: 500;
}

/* sub1 */
.sub_banner {
    position: relative;
}
.sub_banner.mo {
    display: none;
}
.sub_banner img {
    display: block;
    width: 100%;
}
.sub_banner p {
    position: absolute;
    font-size: 23px;
    font-weight: 800;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
}
.sub_cont {
    border: 1px solid #D1D1D1;
    margin-top: 40px;
    border-radius: 10px;
    padding: 35px 25px;
    font-size: 16px;
    color: #4F5448;
    line-height: 1.5;
    word-break: break-all;
}
.sub_cont .point3 {
    font-size: 16px;
    color: #7AAE25;
    font-weight: 500;
}


@media screen and (max-width: 900px) {
    nav.show {
        display: block;
        top: 0;
        width: 80%; height: 100vh;
        z-index: 9999;
        border-top: none;
    }
    nav.show .top {
        display: flex;
        justify-content: flex-end;
        align-items: center;
        padding: 15px;
    }
    nav.show .top .close_ico {
        display: block;
        width: 20px; height: 20px;
        background: url(../img/close.png) no-repeat center/contain;
    }
    nav .inner {
        padding: 0;
        max-width: 100%;
        margin: 0;
    }
    .nav_list {
        height: auto;
        flex-direction: column;
        align-items: flex-start;
    }
    .nav_list li {
        width: 100%;
    }
    .nav_list li a {
        display: block;
        padding: 25px 15px;
        border-bottom: 1px solid #E4E4E4;
    }
    .nav_list li:first-child a {
        border-top: 1px solid #E4E4E4;
    }
    .nav_list li.on a {
        color: #282424;
        background: linear-gradient(to right, #C9DE75, #A6C81D);
    }
    .index_btns {
        flex-direction: column;
    }
    .index_btns li {
        width: 100%;
        height: 20rem;
    }
    .index_btns li.cont {
        display: none;
    }
    .index_btns li a img {
        object-fit: contain;
    }
    .index_banner .inner img {
        width: 100%; height: auto;
    }
    .sub_banner {
        display: none;
    }
    .sub_banner.mo {
        display: block;
    }
    .sub_banner p {
        text-align: center;
        font-size: 21px;
        line-height: 1.3;
    }
}


@media screen and (max-width: 768px) {
    .index_btns li {
        width: 100%;
        height: 15rem;
    }
}