body {
    font-family: 'NanumSquareNeo', sans-serif;
    color: #333;
}
* {
    box-sizing: border-box;
}
main {
    padding: 11rem 1.5rem 3rem;
}
main.home {
    padding: 11rem 0 3rem;
}
.no-scroll {
    overflow: hidden; height: 100%;
}
.main_tit {
    font-size: 2rem;
    font-weight: 800;
    padding: 1rem 0 3rem;
}
/* index */

#indexLoadImg {
    position: relative;
    width: 100%;
    min-height: 100vh;
}
#indexLoadImg img {
    display: block;
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    height: 20.5rem;
}

/* header */
.header_main {
    position: fixed;
    left: 0; top: 0;
    width: 100%; height: 9rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    z-index: 990;
    background: #fff;
}
.header_main a {
    display: block;
    height: 7rem;
}
.header_main a img {
    display: block;
    height: 100%;
}
.header_main .menu_ico {
    position: relative;
    display: block;
    width: 2.5rem; height: 2.5rem;
    background: url(../img/icon-4.png) no-repeat center/contain;
}
.header_main .menu_ico:after {
    content: '';
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    background: transparent;
    width: 5rem; height: 5rem;
}
header .back {
    display: none;
    position: fixed;
    left: 0; top: 0;
    width: 100%; height: 100vh;
    background: rgba(0, 0, 0, 0.3);
    z-index: 998;
}
header .back.open {
    display: block;
}
nav {
    position: fixed;
    right: -71%; top: 0;
    background: #fff;
    width: 70%; min-height: 100vh;
    z-index: 999;
    transition: ease-in-out .3s;
}
nav.open {
    right: 0;
}
.nav_logo {
    height: 9rem;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 0 1.5rem;
}
.nav_logo .close_ico {
    position: relative;
    display: block;
    width: 2.5rem; height: 2.5rem;
    background: url(../img/icon-4.png) no-repeat center/contain;
}
.nav_logo .close_ico:after {
    content: '';
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    background: transparent;
    width: 5rem; height: 5rem;
}
.nav_menu {
    padding: 0 1.5rem;
    width: 100%;
}
.nav_menu li {
    width: 100%;
    border-bottom: .1rem solid #E9E9E9;
}
.nav_menu li a {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.8rem;
    padding-bottom: 1.8rem;
    line-height: 0;
}
.nav_menu li.on a {
    font-weight: 600;
}
.nav_menu li:nth-child(n+2) a {
    padding-top: 1.8rem;
}
.nav_menu li a .nav_ico {
    display: block;
    width: 2.2rem; height: 2.2rem;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}
.nav_menu li:nth-child(1) a .nav_ico {
    background-image: url(../img/menu-btn-off-1.png);
}
.nav_menu li:nth-child(2) a .nav_ico {
    background-image: url(../img/menu-btn-off-2.png);
}
.nav_menu li:nth-child(3) a .nav_ico {
    background-image: url(../img/menu-btn-off-3.png);
}
.nav_menu li:nth-child(4) a .nav_ico {
    background-image: url(../img/menu-btn-off-4.png);
}
.nav_menu li:nth-child(1).on a .nav_ico {
    background-image: url(../img/menu-btn-on-1.png);
}
.nav_menu li:nth-child(2).on a .nav_ico {
    background-image: url(../img/menu-btn-on-2.png);
}
.nav_menu li:nth-child(3).on a .nav_ico {
    background-image: url(../img/menu-btn-on-3.png);
}
.nav_menu li:nth-child(4).on a .nav_ico {
    background-image: url(../img/menu-btn-on-4.png);
}

/* home */
.home_img {
    width: 100%;
    padding-bottom: 3rem;
    text-align: center;
    border-bottom: .4rem solid #D6D6D6;
}
.img_box {
    position: relative;
    text-align: center;
    margin-bottom: 4rem;
}
.img_box img {
    height: 20rem;
}
.img_box p {
    position: absolute;
    display: flex;
    align-items: baseline;
    gap: .3rem;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.8rem;
    padding-top: 10px;
}
.img_box p b {
    font-size: 3.5rem;
    font-weight: 900;
}
.home_img a {
    display: inline-block;
    background: linear-gradient(to right, #7150F7, #B646FE);
    border-radius: 1rem;
    padding: 1.5rem 3rem;
    color: #fff;
    font-weight: 600;
    font-size: 2rem;
}
.home_cont_box {
    padding: 3rem 1.5rem;
}
.home_tit {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 2.5rem;
}
.home_tit a {
    display: block;
    font-size: 1.6rem;
    color: #fff;
    background: linear-gradient(to right, #7150F7, #B646FE);
    padding: .7rem 1rem;
    border-radius: 1.5rem;
}
.home_cont {
    display: block;
    border: .1rem solid #D498FF;
    border-radius: 1rem;
    padding: 1.5rem;
    font-size: 1.6rem;
    line-height: 1.4;
    word-break: break-all;
}
.home_cont.first {
    margin-bottom: 4rem;
}


/* qna */
.qna_box {
    border: .1rem solid #C999FE;
    border-radius: .7rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.qna_inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.qna_box.on .qna_inner {
    border-bottom: .1rem solid #D6D6D6;
    padding-bottom: 1.5rem;
}
.qna_inner .que {
    font-size: 1.7rem;
    word-break: break-all;
    letter-spacing: -.1rem;
    max-width: 27rem;
    line-height: 1.3;
}
.qna_inner .to_arrow {
    display: block;
    width: 1.5rem; height: 1.5rem;
    background: url(../img/arrow-down.png) no-repeat center/contain;
}
.qna_box.on .qna_inner .to_arrow {
    background-image: url(../img/arrow-up.png);
}
.qna_box > pre {
    display: none;
    font-size: 1.6rem;
    padding-top: 1.5rem;
    line-height: 1.5;
    word-break: break-all;
}
.qna_box.on > pre {
    display: block;
}
.pages {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    padding-top: 4rem;
}
.pages a {
    font-size: 1.6rem;
}
.pages a.on {
    font-weight: 800;
    font-size: 1.9rem;
}

/* sub */
.main_tit.sub {
    padding: 1rem 0 4.5rem;
}
.sub_tit {
    font-size: 1.7rem;
    font-weight: 600;
    padding-bottom: 1.5rem;
}
.sub_cont {
    font-size: 1.6rem;
    line-height: 1.5;
    word-break: break-all;
    padding-bottom: 5rem;
}
.sub_cont .point3 {
    font-size: 1.6rem;
    font-weight: 600;
}

/* time */
.time_img_sec {
    position: relative;
    width: 100%;
    height: 30rem;
}
.time_img_sec .first_img {
    position: absolute;
    display: block;
    height: 18rem;
    left: 50%; top: 40px;
    transform: translateX(-50%);
}
.time_img_sec .sec_img {
    position: absolute;
    display: block;
    height: 18rem;
    left: 50%; 
    top: 73px;
    transform: translateX(-50%);
    animation: rotate 5s 2 ease-in-out;
    animation-direction: alternate;
}
.time_img_sec .time_load {
    position: absolute;
    left: 50%; 
    bottom: 0;
    transform: translateX(-50%);
    font-size: 2rem;
    font-weight: 800;
    width: 100%;
    text-align: center;
}
@keyframes rotate {
    0% {
        transform: translateX(-50%) rotate(0);
    }
    50% {
        transform: translateX(-50%) rotate(180deg);
    }
    100% {
        transform: translateX(-50%) rotate(50deg);
    }
}
.average_speed {
    position: absolute;
    left: 50%; top: 143px;
    transform: translateX(-50%);
    font-size: 1.5rem;
}
.average_speed strong {
    font-size: 3rem;
    font-weight: 900;
}
.total_average {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1.5;
    margin-bottom: 2.5rem;
}
.total_average .total {
    background: linear-gradient(to right, #7150F7, #B646FE);
    padding: .3rem;
    border-radius: .5rem;
    font-size: 1.9rem;
    font-weight: 600;
    color: #fff;
}
.test-box.info {
    text-align: center;
    padding-bottom: 4rem;
    border-bottom: .4rem solid #D6D6D6;
}
.result_text {
    display: inline-block;
    background: linear-gradient(to right, #7150F7, #B646FE);
    color: #fff;
    font-size: 2rem;
    font-weight: 600;
    padding: 1.5rem 2rem;
    border-radius: 1rem;
}
#results {
    padding-top: 2rem;
}
#results > p {
    font-size: 2rem;
    font-weight: 800;
    padding-bottom: 2.5rem;
}
#results .test-box {
    border: .1rem solid #D2A0FE;
    border-radius: 1rem;
    margin-bottom: 1.5rem;
    padding: 2rem 1.5rem;
}
#results .test-box .size_tit {
    display: block;
    font-size: 1.6rem;
    font-weight: 600;
    padding-bottom: 1.5rem;
}
#results .test-box p {
    font-size: 1.6rem;
    line-height: 1.4;
}
#results .test-box p strong {
    font-size: 1.6rem;
}
#results > span {
    display: block;
    font-size: 1.5rem;
    line-height: 1.4;
    word-break: break-all;
    padding-top: 1.5rem;
}
#copyButton {
    position: absolute;
    top: 0; right: 0;
    font-size: 1.6rem;
    color: #fff;
    font-weight: 600;
    background: linear-gradient(to right, #7150F7, #B646FE);
    border-radius: .7rem;
    padding: .5rem 1rem;
}
.time_img_sec .re_btn {
    display: block;
    position: absolute;
    top: 0; left: 0;
    font-size: 1.6rem;
    color: #fff;
    font-weight: 600;
    background: linear-gradient(to right, #7150F7, #B646FE);
    border-radius: .7rem;
    padding: .5rem 1rem;
}
.error {
    font-size: 1.7rem;
    font-weight: 600;
}

/* calc */
#calc_form > div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}
#calc_form > div .left {
    font-size: 1.6rem;
    line-height: 1.3;
    max-width: 30%;
}
#calc_form .input_box {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: .5rem;
    width: 70%;
}
#calc_form .input_box input {
    display: block;
    background: #D6D6D6;
    padding: 1.3rem 1rem;
    width: 80%;
    font-size: 1.6rem;
    text-align: right;
    font-weight: 600;
}
#calc_form .input_box span {
    font-size: 1.6rem;
}
.button_box {
    text-align: center;
    margin: 5rem 0 7rem;
}
#calc_submit {
    font-size: 2.2rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(to right, #7150F7, #B646FE);
    border-radius: .7rem;
    padding: .7rem 1.5rem;
}
.calc_result {
    margin-bottom: 5rem;
}
.calc_result .result_tit {
    font-size: 1.8rem;
    font-weight: 800;
    padding-bottom: 2rem;
}
.result_box {
    border: .1rem solid #BB59FE;
    border-radius: 1rem;
    padding: 1.5rem;
    font-size: 2.3rem;
    font-weight: 900;
    text-align: center;
}
.result_box b {
    display: inline-block;
    font-size: 2.3rem;
    font-weight: 900;
    padding-right: .5rem;
}
.result_box .min,
.result_box .sec {
    padding-left: 1rem;
}
.warrning {
    font-size: 1.5rem;
    line-height: 1.4;
    word-break: break-all;
}