.gnb_btn a {
    color: white;
    transition: color .3s;
}

.gnb_btn a {
    color: white;
    transition: color .3s;
}

.gnb_box .on a {
    font-weight: 700;
    color: var(--primary-brown);
    transform: translateY(3px);
}

.gnb_box .on {
    border-bottom: 5px solid var(--primary-brown);
    transition: all 0.3s ease-in;
}

.scrolled .gnb_box .on {
    border-bottom: 5px solid var(--primary-orange);
}

/* === SECTION 01 === */
.section01--how {
    background-image: url("../public/images/howto/howto-visu.jpg");
}

/*  === SECTION 02 === */
.section02 {
    user-select: none;
    -webkit-user-select: none;
}

.box_title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 80px;
}

.box_title span {
    font-family: 'HakgyoansimB';
    color: var(--primary-orange);
}

.box_tit p {
    line-height: 180%;
}

.box_tit p:nth-child(1) {
    margin-bottom: 20px;
}

.box_tit p:nth-child(2) {
    font-family: 'HakgyoansimB';
    font-size: 50px;
    color: var(--primary-brown);
}

.box_tit p:nth-child(3) {
    color: #767676;
    font-size: 20px;
}

.box_tag {
    display: flex;
    justify-content: flex-start;
    gap: 6px;
}

.box_icon {
    width: 550px;
    padding-right: 80px;
}

.box_icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 사용방법 list */
.group_tit {
    width: 200px;
    font-size: 24px;
    font-family: 'MalangmalangR';
    font-weight: 600;
    text-align: center;
    background-color: var(--primary-orange);
    padding: 10px 40px;
    color: white;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
    transform: translateX(-14px);
}

.howto_group {
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    background: linear-gradient(to bottom,
            #ffffff 60%,
            #eeeeee 100%);
    box-shadow: 1px 10px 40px 1px #d4bba750;
}

.skew01 {
    z-index: 2;
    position: relative;
}

.skew02 {
    z-index: 3;
    position: relative;
}

.skew03 {
    z-index: 1;
    position: relative;
}

.skew01,
.skew03 {
    transform: skewX(3deg);
}

.skew02 {
    transform: skewX(-3deg);
    background: white;
}

.skew03 {
    background: linear-gradient(to top,
            #ffffff 60%,
            #eeeeee 100%);
}

.skew01 .list,
.skew01 .list_img,
.skew03 .list,
.skew03 .list_img {
    transform: skewX(-3deg);
}

.skew02 .list,
.skew02 .list_img {
    transform: skewX(3deg);
}

.list {
    width: 50%;
    display: flex;
    justify-content: flex-start;
    flex-direction: column;
    padding: 80px 80px 80px 100px;
    font-size: 26px;
    line-height: 160%;
    border-right: 1px dotted var(--primary-orange);
    color: var(--primary-brown);
}

.list_img {
    width: 50%;
    padding: 80px 120px 80px 20px;
}

.list_img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.list p:nth-child(1) {
    font-family: 'HakgyoansimB';
    font-size: 60px;
    margin-bottom: 40px;
}

.list p:nth-child(2) {
    font-weight: 520;
}

.list span {
    font-weight: 800;
}

.tip {
    color: var(--primary-orange);
    font-weight: 500;
    font-size: 20px;
    line-height: 150%;
    margin-top: 50px;
}

/* 배경 텍스트&라인 */
.section02 {
    height: 250vh;
    overflow: hidden;
}

.bg_wrap {
    position: absolute;
    top: 1000px;
    left: 0;
}

.bg_wrap li {
    width: 100vw;
    height: 120px;
    border-top: 1px solid var(--primary-orange);
}

.bg_box {
    width: 180px;
    text-align: center;
    font-weight: 700;
    border-radius: 100px;
    background-color: var(--primary-baige);
    border: 1px solid var(--primary-orange);
    color: var(--primary-orange);
    padding: 10px 20px;
    text-transform: uppercase;
    box-sizing: border-box;
}

.bg_box01 {
    transform: translateY(-50%) translateX(30%);
    background-color: var(--primary-orange);
    color: white;
}

.bg_box02 {
    transform: translateY(-50%) translateX(970%);
}

.bg_box03 {
    transform: translateY(-50%) translateX(150%);
}

/* 배경 이미지 */
.background_img {
    position: relative;
    overflow: hidden;
    z-index: -10;
    transform: translateY(-1000px);
}

.background_img img {
    display: block;
    width: 100%;
    height: auto;
}

/* 그라데이션 오버레이 */
.bg_color {
    position: absolute;
    inset: 0;
    /* top:0; right:0; bottom:0; left:0 와 같음 */
    z-index: 3;
    /* ★ 이미지보다 위에 오도록 숫자를 더 크게! */
    pointer-events: none;
    /* 클릭 막지 않게 */
    background: linear-gradient(to bottom,
            rgba(255, 241, 222, 1) 0%,
            /* 아래쪽 진하게 */
            rgba(255, 241, 222, 0) 100%
            /* 위로 갈수록 투명 */
        );
}

@media (max-width: 1500px) {

    /* ------------ 로그인용 gnb ------------ */
    /* 모바일 헤더 */
    .menu_btn,
    .close_btn {
        display: block;
    }

    .menu_btn {
        width: 28px;
        height: 28px;
        background-color: white;
        -webkit-mask-image: url("../public/images/icon/fe_bar.svg");
        mask-image: url("../public/images/icon/fe_bar.svg");
    }

    header.scrolled .menu_btn {
        width: 28px;
        height: 28px;
        background-color: white;
        -webkit-mask-image: url("../public/images/icon/fe_bar.svg");
        mask-image: url("../public/images/icon/fe_bar.svg");
    }

    .gnb_box .on {
        border-bottom: 5px solid var(--primary-orange);
        transition: all 0.3s ease-in;
    }
}

@media (max-width: 1200px) {
    .section02 {
        height: 230vh;
    }

    .section02 .container {
        width: 90%;
    }

    .box_title {
        margin-bottom: 80px;
    }

    .box_tit p {
        line-height: 180%;
    }

    .box_tit p:nth-child(1) {
        margin-bottom: 20px;
    }

    .box_title img {
        width: 35%;
    }

    .box_tit p:nth-child(2) {
        font-size: 35px;
    }

    .box_tit p:nth-child(3) {
        font-size: 18px;
    }

    .box_tag {
        gap: 6px;
    }

    .box_icon {
        width: 450px;
    }

    .box_icon img {
        width: 100%;
    }

    .group_tit {
        width: 180px;
        font-size: 20px;
        margin-left: 2px;
    }

    .howto_group {
        height: 450px;
        gap: 20px;
    }

    .list {
        width: 50%;
        padding: 40px 40px 40px 60px;
        font-size: 20px;
        line-height: 150%;
    }

    .list_img {
        width: 45%;
        padding: 40px 80px 80px 40px;
    }

    .list p:nth-child(1) {
        font-size: 50px;
        margin-bottom: 30px;
    }

    .tip {
        font-size: 18px;
        margin-top: 40px;
    }

    /* 배경 */
    .bg_wrap {
        display: none;
    }

    .background_img {
        transform: translateY(-600px);
    }
}

@media (max-width: 850px) {
    .section02 {
        padding: 80px 0;
        height: 180vh;
    }

    .box_title {
        margin-bottom: 60px;
    }

    .box_tit p:nth-child(1) {
        margin-bottom: 18px;
    }

    .box_title img {
        width: 33%;
    }

    .box_tit p:nth-child(2) {
        font-size: 26px;
    }

    .box_tit p:nth-child(3) {
        font-size: 18px;
    }

    .box_icon {
        padding-right: 40px;
        width: 300px;
    }

    .box_icon img {
        width: 100%;
    }

    .group_tit {
        width: 150px;
        font-size: 18px;
        margin-left: 4px;
    }

    .howto_group {
        height: 350px;
        gap: 20px;
    }

    .list {
        width: 70%;
        padding: 20px 20px 20px 40px;
        font-size: 16px;
        line-height: 150%;
    }

    .list_img {
        width: 60%;
        padding: 20px 40px 40px 5px;
    }

    .list p:nth-child(1) {
        font-size: 30px;
        margin-bottom: 20px;
    }

    .tip {
        font-size: 16px;
        margin-top: 40px;
    }

    /* 배경 */
    .background_img {
        transform: translateY(-400px);
    }
}

@media (max-width: 585px) {
    .section02 {
        height: 1400px;
    }

    .box_title {
        margin-bottom: 30px;
    }

    .box_tit p:nth-child(1) {
        margin-bottom: 10px;
    }

    .box_title img {
        width: 20%;
    }

    .box_tit p:nth-child(2) {
        font-size: 22px;
    }

    .box_tit p:nth-child(3) {
        font-size: 15px;
    }

    .box_icon {
        padding-right: 20px;
        width: 227px;
    }

    .box_icon img {
        width: 100%;
    }

    .group_tit {
        width: 140px;
        font-size: 16px;
        margin-left: 5px;
    }

    .howto_group {
        height: 350px;
        gap: 20px;
    }

    .list {
        width: 70%;
        padding: 10px 10px 10px 20px;
        font-size: 16px;
        line-height: 140%;
    }

    .list_img {
        width: 60%;
        padding: 10px 20px 20px 5px;
    }

    .list p:nth-child(1) {
        font-size: 22px;
        margin-bottom: 15px;
    }

    .tip {
        font-size: 16px;
        margin-top: 30px;
    }

    /* 배경 */
    .background_img {
        transform: translateY(-293px);
    }
}

@media (max-width: 450px) {
    .section01{
        margin-top: 0 !important;
    }
    .section02 {
        padding: 50px 0;
        height: 1400px;
    }

    .section02 .container {
        width: 100%;
    }

    .box_title {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        text-align: center;
        gap: 0;
        column-gap: 0;
        row-gap: 0;
        margin-bottom: 40px;
    }

    .box_tit p:nth-child(1) {
        margin-bottom: 1px;
        width: 20%;
        margin: 0 auto;
    }

    .box_tit p:nth-child(1) img {
        margin-top: 0;
        width: 100%;
        padding: 0;
    }

    .box_title img {
        width: 18%;
        margin-top: 40px;
        padding-right: 30PX;
    }

    .box_tit p:nth-child(2) {
        font-size: 22px;
    }

    .box_tit p:nth-child(3) {
        font-size: 16px;
    }

    .box_icon {
        padding-right: 0px;
        width: 227px;
    }

    .box_icon img {
        width: 100%;
    }

    .group_tit {
        box-sizing: border-box;
        padding: 10px 30px;
        width: 130px;
        font-size: 16px;
        margin-left: 35px;
    }

    .skew01,
    .skew02,
    .skew03 {
        transform: skewX(0deg) !important;
    }

    .skew01 .list,
    .skew01 .list_img,
    .skew02 .list,
    .skew02 .list_img,
    .skew03 .list,
    .skew03 .list_img {
        transform: skewX(0deg) !important;
    }
    .howto_group {
        height: 300px;
        gap: 15px;
    }
    .list {
        width: 80%;
        padding: 0 10px 10px 25px;
        font-size: 15px;
        line-height: 135%;
    }
    .list_img {
        width: 60%;
        padding: 0 25px 10px 0;
    }
    .list p:nth-child(1) {
        font-size: 18px;
        margin-bottom: 15px;
    }
    .tip {
        font-size: 15px;
        margin-top: 20px;
    }

    /* 배경 */
    .background_img {
        display: none;
    }
}