/* ------------------------------------------------------------ course_nav */
#course_nav {
    padding: 40px 0 118px
}

#course_nav h3 {
    width: -moz-fit-content;
    width: fit-content;
    border-bottom: 4px solid #254595;
    padding-bottom: 16px;
    margin: 0 auto;
    font-size: 37px;
    line-height: 54px;
    font-weight: bold
}

#course_nav .group-link {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    row-gap: 8px;
    margin-top: 64px
}

#course_nav .group-link li {
    background: #daeefe;
    box-sizing: border-box;
    width: calc(50% - 13px);
    padding: 9px
}

#course_nav .group-link li a {
    position: relative;
    display: flex;
    align-items: center;
    gap: 18px
}

#course_nav .group-link li a::before {
    content: "";
    position: absolute;
    border-bottom: 2px solid #254595;
    border-right: 2px solid #254595;
    width: 10px;
    height: 10px;
    top: calc(50% - 3px);
    right: 12px;
    transform: translateY(-50%) rotate(45deg)
}

#course_nav .group-link li a span {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "Helvetica";
    background: #f5e149;
    color: #254595;
    border-radius: 50%;
    width: 49px;
    height: 49px;
    font-size: 26px;
    font-weight: bold;
    letter-spacing: 0
}

#course_nav .group-link li a h4 {
    flex: 1;
    color: #000;
    font-size: 16px;
    font-weight: 500;
    line-height: 24px;
    letter-spacing: 0
}

/* ------------------------------------------------------------ about */
#about {
    background: #daeefe;
    padding: 51px 0 73px
}

#about .about .inner {
    box-sizing: border-box;
    background: #fff;
    border-radius: 44px;
    box-shadow: 0px 0px 6px rgba(0, 0, 0, .16);
    padding: 48px 50px 68px
}

#about .about .title {
    display: flex
}

#about .about .title span {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "Helvetica";
    background: #f5e149;
    color: #254595;
    border-radius: 50%;
    width: 99px;
    height: 99px;
    font-size: 47px;
    font-weight: bold;
    line-height: 1;
    letter-spacing: 0
}

#about .about .title h3 {
    flex: 1;
    color: #000;
    margin: 22px 0 0 30px;
    font-size: 32px;
    font-weight: bold;
    line-height: 46px;
    letter-spacing: 0
}

#about .about .row {
    display: flex;
    justify-content: space-between;
    margin-top: 30px
}

#about .about .group-txt {
    width: 500px
}

#about .about .group-txt h4 {
    color: #000;
    font-size: 32px;
    line-height: 46px;
    font-weight: 500;
    letter-spacing: 0
}

#about .about .group-txt p {
    margin-top: 23px;
    line-height: 32px;
    letter-spacing: 0
}

#about .about .photo {
    width: 462px
}

#about .about .photo img {
    width: 100%;
    height: auto
}

#about .about+.about {
    margin-top: 23px
}

/* ------------------------------------------------------------ plants */
#plants {
    background: #fefcef;
    padding: 38px 0 95px
}

#plants .inner {
    width: 1200px
}

#plants h3 {
    text-align: center;
    color: #000;
    font-size: 33px;
    font-weight: bold;
    line-height: 48px;
    letter-spacing: 0
}

#plants .row {
    display: flex;
    justify-content: space-between;
    margin-top: 67px
}

#plants .row .col {
    width: 375px
}

#plants .row .col h4 {
    position: relative;
    text-align: center;
    background: #d9eefe;
    color: #254595;
    padding: 28px 0 29px 64px;
    font-size: 26px;
    font-weight: 500;
    line-height: 37px;
    letter-spacing: 0
}

#plants .row .col h4 span {
    margin-left: 7px;
    font-size: 18px;
    letter-spacing: 0
}

#plants .row .col h4 img {
    display: block;
    position: absolute;
    z-index: 1;
    bottom: 0;
    width: 111px;
    left: 10px
}

#plants .row .col .list {
    margin-top: 31px
}

#plants .row .col .list li {
    position: relative;
    padding-left: 39px;
    font-size: 16px;
    line-height: 25px;
    font-weight: 600;
    letter-spacing: 0
}

#plants .row .col .list li:before {
    content: "";
    position: absolute;
    background: url("../images/course/plants_icon.png") no-repeat;
    width: 25px;
    height: 25px;
    background-size: 100%;
    top: 0;
    left: 0
}

#plants .row .col .list li+li {
    margin-top: 15px
}

#plants .row .col .viewmore {
    position: relative;
    margin-top: 31px
}

#plants .row .col .viewmore::before {
    content: "";
    position: absolute;
    background: #707070;
    height: 1px;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%)
}

#plants .row .col .viewmore p {
    position: relative;
    z-index: 1;
    box-sizing: border-box;
    text-align: center;
    border: 1px solid #707070;
    background: #fff;
    border-radius: 20px;
    width: 133px;
    margin: 0 auto;
    font-size: 16px;
    font-weight: 400;
    line-height: 38px;
    letter-spacing: 0
}

#plants .row .col .btn {
    max-width: 309px;
    margin: 41px auto 0
}

#plants .row .col .btn a {
    position: relative;
    box-sizing: border-box;
    text-align: center;
    display: block;
    border: 2px solid #254595;
    background: #fff;
    color: #254595;
    border-radius: 36px;
    padding: 18px 18px 23px 0;
    font-size: 19px;
    font-weight: 500;
    line-height: 27px;
    letter-spacing: 0
}

#plants .row .col .btn a::before {
    content: "";
    position: absolute;
    background: url("../images/course/plants_icon2.png") no-repeat;
    width: 26px;
    height: 26px;
    background-size: 100%;
    top: 50%;
    right: 19px;
    transform: translateY(-50%)
}

/* ------------------------------------------------------------ gradation_btn */
.gradation_btn {
    margin: 100px auto
}


/* ------------------------------------------------------------ mobile */
@media screen and (max-width: 640px) {
    /* ------------------------------------------------------------ course_nav */
    #course_nav {
        padding: 20px 0 60px
    }

    #course_nav h3 {
        padding-bottom: 10px;
        font-size: 20px;
        line-height: 30px
    }

    #course_nav .group-link {
        flex-direction: column;
        row-gap: 8px;
        margin-top: 30px
    }

    #course_nav .group-link li {
        width: 100%
    }

    #course_nav .group-link li a {
        align-items: flex-start;
        gap: 10px
    }

    #course_nav .group-link li a::before {
        right: 5px;
        width: 7px;
        height: 7px
    }

    #course_nav .group-link li a span {
        width: 32px;
        height: 32px;
        font-size: 16px
    }

    #course_nav .group-link li a h4 {
        margin: 4px 25px 0 0;
        font-size: 14px;
        line-height: 22px
    }

    /* ------------------------------------------------------------ about */
    #about {
        padding: 60px 0
    }

    #about .about .inner {
        padding: 20px;
        border-radius: 20px
    }

    #about .about .title span {
        width: 40px;
        height: 40px;
        font-size: 20px
    }

    #about .about .title h3 {
        margin: 2px 0 0 10px;
        flex: 1;
        font-size: 18px;
        line-height: 34px
    }

    #about .about .row {
        display: block;
        margin-top: 10px
    }

    #about .about .group-txt {
        width: auto;
        margin-bottom: 15px
    }

    #about .about .group-txt h4 {
        font-size: 18px;
        line-height: 34px
    }

    #about .about .group-txt p {
        margin-top: 10px;
        font-size: 14px;
        line-height: 27px
    }

    #about .about .photo {
        width: auto
    }

    /* ------------------------------------------------------------ plants */
    #plants {
        padding: 45px 0 60px
    }

    #plants .inner {
        width: calc(100% - 44px)
    }

    #plants h3 {
        font-size: 20px;
        line-height: 40px;
    }

    #plants .row {
        flex-direction: column;
        gap: 70px;
        margin-top: 50px;
    }

    #plants .row .col {
        width: auto;
    }

    #plants .row .col h4 {
        padding: 15px 0 15px 30px;
        font-size: 20px;
    }

    #plants .row .col h4 span {
        font-size: 16px
    }

    #plants .row .col h4 img {
        width: 100px;
        left: 5px;
    }

    #plants .row .col .list {
        margin-top: 20px;
    }

    #plants .row .col .list li {
        padding-left: 35px;
        font-size: 14px;
        line-height: 25px;
    }

    #plants .row .col .viewmore {
        margin-top: 20px;
    }

    #plants .row .col .btn {
        margin-top: 30px;
    }

    /* ------------------------------------------------------------ gradation_btn */
    .gradation_btn {
        margin: 60px auto;
    }
  #plants .toggle { margin-bottom: 20px; }
}