/*------------------------------------------------------
· Innoteco Temporary Page Ver 1.0
· Type : contents.css
· Author : Albatrosss Pictures Kim Hyun Gyu
· Data : 2005.05.14
· Copyright @ 2005 Innoteco Temporary Page all rights reserved
---------------------------------------------------------
· SUMMARY:
0) Responsive Area
1) Common
2) Greeting
3) Overview
---------------------------------------------------------*/

@charset "utf-8";

/* #################################### 01.Common #################################### */
.innoteco-sub-wrap {
    width: 100%;
    height: auto;
    min-height: 100svh;
    padding: calc(var(--header-wrap-height) + 10vh)var(--header-wrap-padding);
    margin: 0 auto;
}

.innoteco-submenu-wrap {
    position: fixed;
    left: 0;
    right: 0;
    top: -100%;
    bottom: auto;
    margin: 0 auto;
    width: 100%;
    height: 120px;
    padding: 0 var(--header-wrap-padding);
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
    z-index: 8;
    backdrop-filter: blur(10px);
    background-color: rgba(0, 0, 0, 0.3);
}

.innoteco-submenu-location {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: center;
    gap: 20px;
}

.innoteco-submenu-location-icon i {
    font-size: 22px;
    color: #444444;
}

.innoteco-submenu-common {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: center;
    gap: 10px;
}

.innoteco-submenu-common p {
    font-size: 22px;
    font-weight: 500;
}

.innoteco-submenu-icon {
    position: relative;
    width: calc(16px + 8px + 8px + 5px);
    height: 16px;
}

.innoteco-submenu-icon span {
    position: absolute;
    top: 0;
    bottom: 0;
    margin: auto 0;
}

.innoteco-submenu-icon span:nth-child(1),
.innoteco-submenu-icon span:nth-child(3) {
    border-radius: 100px;
}

.innoteco-submenu-icon span:nth-child(2),
.innoteco-submenu-icon span:nth-child(3) {
    background: var(--signature-color);
}

.innoteco-submenu-icon span:nth-child(1) {
    width: 16px;
    height: 100%;
    border: 2px solid #444444;
}

.innoteco-submenu-icon span:nth-child(2) {
    left: 8px;
    right: auto;
    width: 16px;
    height: 1px;
}

.innoteco-submenu-icon span:nth-child(3) {
    left: auto;
    right: 0;
    width: 8px;
    height: 8px;
}

.innoteco-submenu-list li {
    cursor: pointer;
}

.innoteco-submenu-list li a {
    transition: all .3s;
    font-size: 20px;
}

.innoteco-submenu-list li.roll a,
.innoteco-submenu-list li.on a {
    color: var(--signature-color);
    font-weight: 600;
}

.innoteco-submenu-list ul {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: center;
    gap: 35px;
}

/* #################################### 02.Intro #################################### */


/* #################################### 03.Greeting #################################### */
.greeting-info-wrap {
    width: 65%;
    height: auto;
    margin: 0 auto;
    display: flex;
    align-items: center;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-between;
}

.greeting-info-img {
    position: relative;
    width: 40%;
    background: url(../img/greeting_section_01.jpg) center center no-repeat;
    background-size: cover;
    border-radius: clamp(20px, 1.2891vw, 3.0625rem);
    height: 55vh;
}

.greeting-info-title-wrap {
    display: flex;
    width: calc(100% - 40% - 200px);
    height: auto;
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: flex-start;
}

.greeting-info-title {
    width: clamp(150px, 13.6719vw, 32.8125rem);
    height: auto;
}

.greeting-info-title img {
    width: 100%;
    height: auto;
}

.greeting-info-sub-title {
    width: auto;
    height: auto;
    margin-top: clamp(60px, 5.8594vw, 14.0625rem);
}

.greeting-info-sub-title p {
    font-size: clamp(20px, 1.4453vw, 3.4375rem);
    font-weight: 100;
}

.greeting-info-sub-title span {
    display: block;
}

.greeting-info-desc {
    width: auto;
    height: auto;
    margin-top: clamp(40px, 2.3438vw, 5.625rem);
}

.greeting-info-desc p {
    font-size: clamp(16px, .8203vw, 1.9375rem);
    font-weight: 100;
}

.greeting-info-desc span {
    display: block;
    margin-top: clamp(2px, .1563vw, .375rem)
}

.greeting-account {
    position: relative;
    width: 65%;
    height: auto;
    margin: 0 auto;
    margin-top: 190px;
}

.greeting-account-img {
    position: relative;
    width: 100%;
    height: 45vh;
    background: url(../img/greeting_section_02.jpg) center center no-repeat;
    background-size: cover;
    border-radius: clamp(20px, 1.2891vw, 3.0625rem);
    z-index: 2;
}

.greeting-account-desc {
    position: relative;
    margin-top: 50px;
    z-index: 2;
    display: flex;
    flex-direction: row-reverse;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: flex-start;
}

.greeting-account-desc p {
    font-size: clamp(16px, .8203vw, 1.9375rem);
    font-weight: 100;
}

.greeting-account-desc span {
    display: block;
    margin-top: clamp(2px, .1563vw, .375rem)
}

.greeting-account-dg {
    position: relative;
    z-index: 1;
}

.greeting-account-dg img {
    position: absolute;
    left: -26%;
    bottom: -82px;
    width: 40%;
    height: auto;
    z-index: -2;
}

.greeting-account-dg-blur {
    width: 35vh;
    height: 35vh;
    border-radius: 50%;
    position: absolute;
    bottom: -110px;
    left: -17%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
}

.greeting-symbol {
    width: 100%;
    height: auto;
    margin-top: 300px;
}

.greeting-symbol-img {
    width: 220px;
    height: auto;
    margin: 0 auto;
}

.greeting-symbol-img img {
    width: 100%;
    height: auto;
}

.greeting-symbol-title {
    width: 100%;
    height: auto;
    margin-top: 160px;
}

.greeting-symbol-title p {
    font-size: 73px;
    font-weight: 600;
    letter-spacing: 35px;
    text-align: center;
}


/* #################################### 03.Greeting #################################### */
/* #################################### 04.Overview #################################### */
/* #################################### 05.R&D #################################### */

/* #################################### 06.Product #################################### */
.innoteco-product-title-wrap {
    width: 100%;
    height: 135px;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 150px;
}

.innoteco-product-title-left-wrap {
    width: auto;
    height: 100%;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: 56px;
}

.innoteco-product-title-left {
    width: auto;
    height: 100%;
    position: relative;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 26px;
}

.innoteco-product-title-left::before {
    display: block;
    content: "";
    position: absolute;
    left: -50%;
    bottom: 0;
    width: 150%;
    height: 1px;
    background: var(--signature-color);
}

.innoteco-product-title-left-in-left-symbol {
    width: 80px;
    height: auto;
}

.innoteco-product-title-left-in-left-symbol img {
    width: 100%;
    height: auto;
}

.innoteco-product-title-left-title-text p {
    font-size: 34px;
    font-weight: 200;
}

.innoteco-product-title-left-title-text span {
    display: block;
    color: var(--signature-color);
}

.innoteco-product-title-left-title h1 {
    font-size: 56px;
    text-transform: uppercase;
    margin-top: -6px;
}

.innoteco-product-title-left-title span {
    display: block;
    margin-top: -9px;
}

.innoteco-product-title-right-wrap {
    width: auto;
    height: auto;
}

.innoteco-product-title-right-wrap ul {
    width: auto;
    height: auto;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 32px;
}

.innoteco-product-title-right-wrap li {
    position: relative;
    width: 135px;
    height: 135px;
    border-radius: 500px;
    overflow: hidden;
}

.innoteco-product-title-right-wrap li:nth-child(2) {
    border: 2px solid #4b4b4b;
}

.innoteco-product-title-right-wrap span {
    display: block;
    position: absolute;
}

.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(1) {
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
    margin: auto ;
    width: 9px;
    height: 9px;
    background: var(--signature-color);
    border-radius: 100px;
}

.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(2),
.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(3),
.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(4),
.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(5) {
    background: #4B4B4B;
}

.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(2),
.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(3) {
    width: 20%;
    height: 1px;
}

.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(2) {
    left: calc(135px - (135px - 30px));
    top: 0;
    bottom: 0;
    right: auto;
    margin: auto 0;
}

.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(3) {
    right: calc(135px - (135px - 30px));
    top: 0;
    bottom: 0;
    left: auto;
    margin: auto 0;
}

.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(4),
.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(5) {
    width: 1px;
    height: 20%;
}

.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(4) {
    left: 0;
    top: calc(135px - (135px - 30px));
    bottom: auto;
    right: 0;
    margin: 0 auto;
}

.innoteco-product-title-right-wrap li:nth-child(2) span:nth-child(5) {
    left: 0;
    bottom: calc(135px - (135px - 30px));
    top: auto;
    right: 0;
    margin: 0 auto;
}

.innoteco-product-title-industry .innoteco-product-title-right-wrap li:nth-child(1) {
    background: url(../img/product_industry_top_01.jpg) center center no-repeat;
    background-size: cover;
}

.innoteco-product-title-industry .innoteco-product-title-right-wrap li:nth-child(3) {
    background: url(../img/product_industry_top_02.jpg) center center no-repeat;
    background-size: cover;
}

.innoteco-product-title-home .innoteco-product-title-right-wrap li:nth-child(1) {
    background: url(../img/product_home_top_01.jpg) center center no-repeat;
    background-size: cover;
}

.innoteco-product-title-home .innoteco-product-title-right-wrap li:nth-child(3) {
    background: url(../img/product_home_top_02.jpg) center center no-repeat;
    background-size: cover;
}

.innoteco-product-title-buy .innoteco-product-title-right-wrap li:nth-child(1) {
    background: url(../img/product_buyt_top_01.jpg) center center no-repeat;
    background-size: cover;
}

.innoteco-product-title-buy .innoteco-product-title-right-wrap li:nth-child(3) {
    background: url(../img/product_buy_top_02.jpg) center center no-repeat;
    background-size: cover;
}

.innoteco-board-title-wrap {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: center;
    margin-bottom: 150px;
}

.innoteco-board-title-wrap h1 {
    display: inline-block;
    font-size: 50px;
    font-weight: 200;
}

.innoteco-board-title-wrap p {
    display: inline-block;
    font-size: 22px;
    font-weight: 600;
    text-transform: uppercase;
    margin-top: 35px;
    background: #161616;
    padding: 24px 44px;
    border-radius: 300px;
}

.innoteco-board-title-wrap span {
    color: var(--signature-color);
}

































.subpage-main-title-line-wrap img {
    width: 10%;
    height: auto;
}


.company-title-wrap img:nth-child(1) {
    width: 320px !important;
}








/* **************************************************************
    0) Responsive Area
************************************************************** */



















.sub-page-narrow-inner {
    width: var(--sub-inner-narrow-width);
    margin: 400px auto;
}

.sub-page-inner {
    width: var(--sub-inner-width);
    margin: auto;
    margin-top: 100px;
}

/* 서브 공통 title box */
.subpage-main-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: clamp(100px, 15vw, 210px);
}

.subpage-main-name img {
    width: clamp(200px, 15vw, 287px);
}

.subpage-main-title-line-wrap {
    display: flex;
    align-items: center;
}

.subpage-main-title-line-wrap span:nth-child(1) {
    width: clamp(170px, 15vw, 287px);
    height: 1px;
    background-color: var(--main-point-color);
}

.subpage-main-title-line-wrap span:nth-child(2) {
    width: clamp(100px, 15vw, 180px);
    height: 1px;
    background-color: var(--sub-line-color);
}

.subpage-main-title h3 {
    font-size: clamp(30px, 5vw, 48px);
}

.subpage-main-desc-img img {
    border-radius: 10px;
    width: clamp(400px, 55vw, 1338px);
}

.subpage-main-desc p {
    font-size: var(--md-font-size);
    margin-top: 20px;
}

/* R&D title box */
.RD-section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 100px;
    margin-top: 300px;
}

.RD-section-title h2 {
    font-size: var(--sub-title-font-size);
    font-weight: 300;
    margin-right: 10px;

}

.RD-section-title span:nth-of-type(1) {
    font-size: var(--md-font-size);
    color: var(--sub-line-color);
    margin-right: auto;

}

.RD-section-title span:nth-of-type(2) {
    width: clamp(300px, 70vw, 1490px);
    height: 1px;
    background-color: var(--main-point-color);
}



/* ------------- sub : product ------------- */
.product-title-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-title-group {
    display: flex;
    align-items: center;
}

.product-title-buy-wrap {
    position: relative;
}

.product-title-buy-box {
    display: flex;
    align-items: flex-start;
}

.product-buy-symbol img {
    width: var(--product-buy-symbol-img-width);
    margin-right: 20px;
}

.poduct-buy-title {
    font-size: var(--sub-logo-title);
    margin-top: -10px;
}

.product-title-buy-line span {
    position: absolute;
    bottom: -20px;
    left: -170px;
    width: var(--product-title-buy-line-span-width);
    height: 1px;
    background-color: var(--main-point-color);
}

.poduct-buy-title strong {
    font-weight: 500;
    color: var(--main-point-color);
}

.product-title-store {
    font-size: var(--product-title-store);
    margin-left: var(--product-title-store-margin-left);
}

.product-title-icons {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    width: var(--product-title-icons-width);
    margin-left: auto;
}

.product-title-icon {
    width: var(--product-title-icon);
    overflow: hidden;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
}

.product-title-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-title-icon-circle {
    width: var(--product-title-icon);
    overflow: hidden;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    border: 1px solid var(--sub-line-color);
    position: relative;
}

.product-title-icon-circle span {
    position: absolute;
}

.product-title-icon-circle span:nth-child(1) {
    width: 60%;
    height: 1px;
    background-color: var(--sub-line-color);
    top: 50%;
    left: 20%;
    transform: translateY(-50%);
}

.product-title-icon-circle span:nth-child(2) {
    width: 1px;
    height: 60%;
    background-color: var(--sub-line-color);
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
}

.product-title-icon-circle span:nth-child(3) {
    width: 20%;
    height: 20%;
    border-radius: 50%;
    border: 7px solid #000000;
    background-color: var(--main-point-color);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.product-store-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: var(--product-store-wrap-width);
    margin: auto;
    margin-top: 340px;
    flex-wrap: wrap;
}

.product-store-link {
    width: clamp(300px, 30vw, 309px);
    height: clamp(300px, 30vw, 309px);
    border-radius: 50%;
    position: relative;
    border: 1px solid var(--sub-line-color);
    line-height: 360px;
}

.product-store-img img {
    margin-left: -50px;
}

.product-store-circle span {
    width: var(--product-store-circle-span-width);
    height: var(--product-store-circle-span-width);
    background-color: var(--sub-line-color);
    position: absolute;
    bottom: 0;
    right: 0;
    border-radius: 50%;
}

.product-store-arrow img {
    position: absolute;
    bottom: 30px;
    right: -40px;
}




/* ------------- sub : esg ------------- */
.esg-title-wrap {
    text-align: center;
}

.esg-title-img img {
    width: var(--esg-title-img-img-width);
    margin-bottom: var(--esg-title-img-img-margin-bottom);

}

.esg-sub-title p {
    font-size: var(--xlg-font-size);
    margin-bottom: var(--esg-sub-title-p-margin-bottom);
}

.esg-sub-title p>strong {
    font-weight: normal;
    color: var(--main-point-color);
}

.esg-title-desc p {
    font-size: var(--lg-font-size);
    margin-bottom: 98px;
}

.esg-main-img {
    width: 100%;
    height: 500px;
    margin: auto;
    background: url('../img/esg-main01.svg') no-repeat center center;
    background-size: contain;
    margin-bottom: 86px;
}

.esg-desc-item-wrap {
    display: flex;
    justify-content: space-around;
}

.esg-desc-item {
    width: 50%;
    text-align: center;
}

.esg-desc-arrow img {
    margin-bottom: 43px;
}

.esg-desc-title-en p {
    font-size: var(--smlg-font-size);
    margin-top: 20px;
    color: var(--sub-line-color);
}

.esg-desc-title-ko p {
    font-weight: 200;
    font-size: var(--smxlg-font-size);
    color: var(--main-point-color);
    margin-bottom: 46px;
}

.esg-desc p {
    font-size: var(--md-font-size);
    font-weight: 200;
}

/* ------------- sub : center ------------- */

.center-desc.about {
    border-radius: 10px;
    background-color: var(--sub-center-color);
    padding: var(--center-padding);
    border: none;
}

.center-desc {
    padding: var(--center-padding);
    margin-bottom: 40px;
    border-bottom: 1px dotted var(--sub-line-color);
}

.center-desc h5,
.center-procedure h5 {
    font-size: var(--lg-font-size);
    font-weight: normal;
    color: var(--main-point-color);
    margin-bottom: 30px;
}

.center-desc p {
    font-size: var(--md-font-size);
}

.center-desc ul,
.RD-hydrogen-title-desc ul,
.RD-business-title-list ul,
.RD-contents-item ul,
.RD-carbon-item ul {
    padding-left: 1em;
}

.center-desc ul>li,
.RD-business-title-list ul>li,
.RD-contents-item ul>li,
.RD-carbon-item ul>li {
    list-style: none;
    font-size: var(--md-font-size);
    position: relative;
}

.center-desc ul>li::before,
.ethics-item-content ul>li::before,
.overview-history-desc ul>li::before,
.RD-hydrogen-title-desc ul>li::before,
.RD-business-title-list ul>li::before,
.RD-contents-item ul>li::before,
.RD-carbon-item ul>li::before {
    content: "";
    width: 5px;
    height: 5px;
    background: var(--main-point-color);
    border-radius: 50%;
    position: absolute;
    left: -10px;
    top: 15px;
}

.center-procedure {
    padding: var(--center-padding);
    border-bottom: 1px dotted var(--sub-line-color);
}


.center-procedure-wrap {
    display: flex;
    margin-top: 20px;
    width: 100%;
    height: 400px;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.center-procedure-item {
    width: 20%;
    display: flex;
    justify-content: center;
}

.center-procedure-item p {
    width: var(--center-procedure-item-p-width);
    height: var(--center-procedure-item-p-width);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--md-font-size);
    text-align: center;
    border-radius: 50%;
    background-color: var(--sub-center-color);
}

.center-procedure-arrow {
    width: 10%;
}

.center-procedure-arrow img {
    transform: rotate(90deg);
    width: 50%;
}

/* ------------- sub : chater ------------- */
.charter-items-wrap {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 70px;
    justify-items: center
}

.charter-item {
    width: min(100%, 634px);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid var(--sub-center-color);
    position: relative;
}

.charter-item-content p,
.ethics-item-content {
    padding: 30px;
    width: 100%;
    border-radius: 10px;
    font-size: var(--md-font-size);
    background-color: var(--sub-center-color);
}

.charter-item-num p,
.ethics-item-num p {
    width: 56px;
    height: 56px;
    text-align: center;
    line-height: 56px;
    font-size: var(--md-font-size);
    border-radius: 50%;
    background-color: var(--main-point-color);
    position: absolute;
    top: 50%;
    left: -30px;
    transform: translateY(-50%);
}

.charter-desc-button {
    width: 100%;
    height: auto;
    margin-top: 200px;
    padding: 100px;
    background-color: var(--sub-center-color);
    border-radius: 10px;
    text-align: center;
}

.charter-desc p {
    font-size: var(--md-font-size);
    margin-bottom: 50px;
}


.charter-button button {
    padding: var(--charter-button-button-padding);
    border-radius: 50px;
    font-size: var(--md-font-size);
    color: #ffffff;
    background-color: var(--main-point-color);
}


/* ------------- sub : ethics ------------- */

.ethics-items-wrap {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 40px;
    justify-items: center;
}

.ethics-item {
    width: min(100%, 450px);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid var(--sub-center-color);
    position: relative;
}

.ethics-item-content p {
    font-size: var(--lg-font-size);
    margin-bottom: 15px;
}

.ethics-item-content ul {
    padding-left: 1em;
}

.ethics-item-content ul>li {
    list-style: none;
    font-size: var(--md-font-size);
    position: relative;
}


/* ------------- sub : overview ------------- */

.overview-title-wrap {
    display: flex;
    gap: 50px;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 300px;
}

.company-title-wrap {
    display: flex;
    align-items: center;
    margin-bottom: 146px;
}

.company-title-wrap img:nth-child(1) {
    width: var(--company-title-wrap-img-1-width);
    margin-right: 30px;
}

.company-title-wrap img:nth-child(2) {
    width: var(--company-title-wrap-img-2-width);
}

.company-box {
    width: var(--company-box-width);
    height: var(--company-box-height);
    margin-bottom: 30px;
    border-radius: 50px;
    background-color: var(--sub-center-color);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.company-box p {
    text-align: center;
    margin-left: 90px;
    font-size: var(--lg-font-size);
}

.company-box span {
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--company-box-span-width);
    border-radius: 50px;
    height: var(--company-box-span-height);
    font-size: var(--lg-font-size);
    background-color: #ffffff;
    color: #000000;
}

.company-box.point span {
    background-color: var(--main-point-color);
    color: #ffffff;
}

.overview-title-img img {
    width: 100%;
}

.overview-title-img-bg img {
    width: var(--overview-title-img-bg-img-width);
    position: absolute;
    top: 250px;
    right: 100px;
    z-index: -1;
}

.overview-history-title {
    display: flex;
    align-items: center;
    margin-bottom: 150px;
}

.overview-history-title span:nth-child(1) {
    font-size: var(--sub-title-font-size);
    margin-right: 10px;
}

.overview-history-title span:nth-child(2) {
    font-size: var(--lg-font-size);
    font-weight: 200;
    color: var(--sub-line-color);
}

.overview-history-wrap {
    display: flex;
    position: relative;
    justify-content: space-between;
    margin-bottom: 400px;
}

.overview-history-line {
    flex: 2;
}

.overview-history-line span:nth-child(1) {
    width: 1px;
    height: 100px;
    background-color: var(--main-point-color);
    position: absolute;
    top: 0;
    left: 170px;
}

.overview-history-line span:nth-child(2) {
    width: 1px;
    height: 100px;
    background-color: var(--sub-center-color);
    position: absolute;
    top: 100px;
    left: 170px;
}

.overview-history-line img {
    position: absolute;
    top: 120px;
    left: 155px;
    width: 37px;
}

.overview-history-desc-wrap {
    flex: 13;
}

.overview-history-desc-box {
    display: flex;
    margin-bottom: 100px;
}

.overview-history-desc {
    flex: 3;
}

.overview-history-desc strong,
.overview-history-img p strong {
    color: var(--main-point-color);
    font-weight: normal;
}

.overview-history-desc span:nth-child(1) {
    font-size: var(--xxxlg-font-size);
}

.overview-history-desc span:nth-child(2) {
    font-size: var(--xxxlg-font-size);
    color: var(--main-point-color);
    margin-left: 10px;
}

.overview-history-desc ul {
    padding-left: 1em;
}

.overview-history-desc ul>li {
    list-style: none;
    font-size: var(--md-font-size);
    position: relative;
}

.overview-history-img {
    flex: 5;
}

.overview-history-img p {
    margin-top: 70px;
    font-size: var(--product-title-store);
    margin-bottom: 30px;
}

.overview-history-img img {
    width: 100%;
}

.overview-certificate-wrap {
    display: flex;
}

.overview-certificate-title {
    position: relative;
    flex: 2;
}

.overview-certificate-title p {
    font-size: var(--lg-font-size);
    margin-left: 10px;
}

.overview-certificate-title h2 {
    font-size: var(--overview-certificate-title-h2);
    font-weight: normal;
}


.overview-certificate-bg img {
    position: absolute;
    left: -300px;
    top: -380px;
    z-index: -2;
}

.overview-certificate-bg span {
    width: 564px;
    height: 564px;
    border-radius: 50%;
    position: absolute;
    left: -200px;
    top: -200px;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: -1;
}

.overview-certificate-items {
    display: flex;
    flex: 6;
    justify-content: space-between;
    width: 100%;
    gap: 30px;
}

.overview-certificate-item {
    width: 25%;
}

.overview-certificate-item-img {
    width: 100%;
    height: var(--overview-certificate-item-img-width);
    background-color: #ffffff;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.overview-certificate-item-img img {
    width: 90%;
    height: 90%;
    border-radius: 10px;
}

.overview-certificate-item p {
    text-align: center;
    font-size: var(--md-font-size);
    margin-top: 20px;
}

.overview-location {
    margin-top: 300px;
    text-align: center;
}

.overview-location-icon img {
    width: var(--overview-location-icon-img-width);
}

.overview-location-title h4 {
    font-size: var(--smxlg-font-size)
    font-weight: normal;
    margin-bottom: 10px;
}

.overview-location-title p {
    font-size: var(--lg-font-size);
    letter-spacing: 0.2em;
    color: var(--sub-line-color);
    margin-bottom: 120px;
}

.overview-location-wrap {
    display: flex;
    width: 100%;
    gap: 100px;
    font-weight: 200;
    justify-content: space-between;
}

.overview-location-item {
    position: relative;
}

.overview-location-items {
    width: 50%;
}

.overview-location iframe {
    border-radius: 10px;
    width: 100%;
}

.overview-location iframe.iframe-height {
    height: var(--overview-location-iframe-height);
}

.overview-location-item p {
    font-size: var(--md-font-size);
    text-align: right;
}

.overview-location-item.is-bottom {
    margin-bottom: 100px;
}

.overview-location-sub-title p {
    border-radius: 50px;
    position: absolute;
    top: 30px;
    left: 30px;
    display: inline-block;
    padding: 10px 40px;
    background-color: var(--sub-center-color);
}

/* ------------- sub : R&D  ------------- */
.RD-title-rodemap {
    text-align: center;
    position: relative;
}

.RD-title-rodemap h2 {
    font-size: var(--sub-title-font-size);
    font-weight: 300;
}

.RD-title-rodemap span:nth-of-type(1) {
    font-size: var(--lg-font-size);
    color: var(--sub-line-color);
}

.RD-title-rodemap span:nth-of-type(2) {
    width: 1px;
    height: 100px;
    background-color: var(--main-point-color);
    position: absolute;
    top: 22%;
    left: 50%;
}

.RD-title-rodemap h4 {
    margin-top: 200px;
    font-weight: 300;
    font-size: var(--lg-font-size);
}

.RD-title-rodemap .RD-icon {
    margin-top: 100px;
}

.RD-title-rodemap p {
    font-size: var(--lg-font-size);
    font-weight: 300;
    margin-top: 20px;
}

.RD-title-rodemap .RD-arrow01 {
    position: absolute;
    top: 49%;
    left: 33.3%;
    z-index: -1;
}

.RD-title-img-wrap {
    display: flex;
    align-items: center;
    gap: 50px;
    justify-content: center;
    margin-top: 50px;
    position: relative;
}

.RD-sub-title-desc {
    margin-top: 50px;
    text-align: center;
    font-size: var(--md-font-size);
    padding: 15px;
    border-radius: 10px;
    background-color: var(--main-point-color);
}

.RD-title-desc h4 {
    text-align: center;
    margin-top: 100px;
    font-size: var(--lg-font-size);
    font-weight: 300;
}

.RD-title-desc .RD-arrow02 {
    transform: rotate(180deg);
    position: absolute;
    bottom: -40px;
    left: 33.3%;
    z-index: -1;
}

.RD-title-desc-items {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.RD-title-desc-item {
    border: 1px solid var(--sub-center-color);
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--RD-title-desc-item-width);
    border-radius: 10px;
    height: var(--RD-title-desc-item-height);
}

.RD-title-desc-item p {
    display: flex;
    align-items: center;
    text-align: center;
    justify-content: center;
    width: 80%;
    height: 80%;
    border-radius: 10px;
    font-size: var(--md-font-size);
    background-color: var(--sub-center-color);
}

.RD-title-img-box {
    display: flex;
    justify-content: center;
    margin-top: 50px;
    gap: 30px;
}

.RD-title-img-item {
    width: var(--RD-title-img-item-width);
    height: var(--RD-title-img-item-height);
    border: 1px solid var(--sub-center-color);
    display: flex;
    margin-bottom: 30px;
    border-radius: 10px;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

.RD-title-img-item-desc {
    width: 60%;
    display: flex;
    justify-content: space-between;
}

.RD-title-img-item p {
    font-size: var(--md-font-size);
}

.RD-title-img-item span {
    color: var(--main-point-color);
}

.RD-hydrogen-title-wrap {
    display: flex;
    gap: 100px;
}

.RD-hydrogen-title-img {
    display: flex;
    gap: 20px;
    align-items: center;
}

.RD-hydrogen-title-img img {
    width: var(--RD-hydrogen-title-img-img-width);
}

.hydrogen-title-img-wrap img {
    display: block;
    margin-bottom: 10px;
    border-radius: 10px;
    width: var(--RD-hydrogen-title-img-wrap-img-width);
}

.RD-hydrogen-title-desc p {
    font-size: var(--lg-font-size);
    margin-bottom: 30px;
}

.RD-hydrogen-title-desc ul>li {
    font-size: var(--lg-font-size);
    position: relative;
    font-weight: 300;
}

.RD-hydrogen-desc-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: auto;
    background-color: #ffffff;
    border-radius: 10px;
    margin-top: 160px;
    padding: 80px;
}

.RD-hydrogen-desc-box {
    width: 20%;
    height: auto;
    border-radius: 10px;
    position: relative;
    background-color: var(--main-point-color);
    text-align: center;
}

.RD-hydrogen-desc-box p {
    font-size: var(--md-font-size);
    margin-top: 60px;
    margin-bottom: 50px;
}

.RD-hydrogen-desc-box p::before {
    content: '';
    width: 1px;
    height: 30px;
    background-color: #ffffff;
    position: absolute;
    top: 42.5%;
    left: 50%;
}

.RD-hydrogen-desc-box img {
    transform: rotate(180deg);
    margin-top: 10px;
}

.RD-hydrogen-desc-box-p {
    background-color: var(--sub-center-color);
    padding: 20px;
    width: 100%;
    height: 197px;
    border-radius: 10px;
    text-align: center;
}

.RD-hydrogen-desc-box-p p {
    margin-top: 10px;
}

.RD-hydrogen-desc-item {
    width: 20%;
    height: 430px;
    text-align: center;
    background-color: #ffffff;
}

.RD-hydrogen-desc-item img {
    width: 100%;
    height: var(--RD-hydrogen-desc-item-img-height);
}

.RD-hydrogen-desc-item p {
    background-color: var(--sub-center-color);
    font-size: var(--md-font-size);
    display: inline-block;
    padding: 10px 20px;
    margin-top: -20px;
    border-radius: 50px;
}

.RD-business-wrap {
    display: flex;
    justify-content: space-between;
    margin-bottom: 130px;
    gap: 30px;
}

.RD-business-title-img {
    position: relative;
}

.RD-business-title-img img {
    border-radius: 50px;
    width: 100%;
    height: 100%;
}

.business-title-img-r,
.RD-business-title-img p {
    position: absolute;
    top: 0;
    border-radius: 80px;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.business-title-img-r {
    left: 0;
    width: 30%;
    height: 100%;
}

.business-title-img-r img {
    left: 0;
    width: 80%;
}

.RD-business-title-img p {
    right: 0;
    font-size: var(--sub-title-font-size);
    width: var(--RD-business-title-img-p-width);
    letter-spacing: 0.2em;
}

.RD-business-desc-wrap {
    display: flex;
    gap: 100px;
}

.RD-business-desc-wrap h4,
.RD-develop-h4 h4 {
    font-size: var(--lg-font-size);
    font-weight: 300;
    position: relative;
    margin-left: 10px;
}

.RD-business-desc-wrap h4::before,
.RD-develop-h4 h4::before {
    content: '';
    width: 1px;
    height: 60px;
    background-color: var(--main-point-color);
    top: 7px;
    left: -10px;
    position: absolute;
}

.RD-business-desc-item {
    display: flex;
    gap: 20px;
}

.RD-business-desc-item h5 {
    font-weight: 300;
    font-size: var(--lg-font-size);
    position: relative;
    margin-left: 20px;
}

.RD-business-desc-item h5::before {
    content: '-';
    color: var(--main-point-color);
    position: absolute;
    top: 0;
    left: -20px;
}

.RD-business-desc-item span {
    font-size: var(--md-font-size);
    margin-top: 5px;
}

.RD-business-desc-box {
    display: flex;
    gap: 60px;
    position: relative;
}

.RD-business-desc-box::before {
    content: '';
    width: 1px;
    height: 90px;
    position: absolute;
    top: 0;
    left: 12%;
    background-color: var(--sub-line-color);
}

.RD-business-desc-box p {
    font-size: var(--md-font-size);
    font-weight: 300;
}

.RD-business-img-wrap {
    display: flex;
    gap: 100px;
    margin-top: 150px;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
}

.RD-business-img-wrap-in-right {
    width: 70%;
    flex: 1;
    height: 850px;
    background: url('../img/business-main01.svg') no-repeat center center;
    background-size: contain;
}

.RD-business-img-desc {
    position: relative;
    flex: 1;
}

.RD-business-img-box {
    display: flex;
    justify-content: space-between;
    gap: 50px;
}

.RD-business-img-l {
    flex: 1;
    height: 330px;
    width: 100%;
    background: url('../img/business-main02.svg') no-repeat center center;
    background-size: contain;
    text-align: center;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.RD-business-img-r {
    flex: 1;
    height: 330px;
    background: url('../img/business-main03.svg') no-repeat center center;
    background-size: contain;
    text-align: center;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.RD-business-img-l p,
.RD-business-img-r p {
    border-radius: 50px;
    padding: 10px 20px;
    width: 190px;
    height: auto;
    background-color: var(--main-point-color);
}

.RD-business-img-desc-box {
    border: 1px solid var(--sub-center-color);
    width: var(--RD-business-img-desc-box-width);
    text-align: center;
    padding: 80px;
    border-radius: 10px;
    position: absolute;
    top: 50%;
    left: 23%;
    z-index: -1;
}

.RD-business-img-desc-box img {
    transform: rotate(90deg);
    margin-top: 100px;
}

.RD-business-img-desc-box p {
    font-size: var(--md-font-size);
    margin-top: 50px;
}

.business-bg {
    position: absolute;
    top: 40%;
    left: 40%;
    z-index: -1;
}

.RD-develop-desc-wrap {
    display: flex;
    margin-top: 100px;
    gap: 100px;
}

.RD-develop-desc-arrow {
    flex: 1;
    width: 100%;
    height: 200px;
    background: url('../img/develop-arrow.svg') no-repeat center center;
    background-size: contain;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 20px;
}

.RD-develop-desc-arrow img {
    width: 100%;
}

.RD-develop-desc-arrow span:nth-of-type(1) {
    width: 280px;
    height: 1px;
    background: linear-gradient(to right, #000, #fff);
}

.RD-develop-desc-arrow span:nth-of-type(2) {
    font-size: var(--lg-font-size);
    font-weight: 300;
    letter-spacing: 0.2em;
    left: 57%;
}

.RD-develop-desc-itmes {
    flex: 3;
}

.RD-develop-desc-itme {
    display: flex;
    align-items: center;
    gap: 50px;
    height: auto;
    margin-bottom: 80px;
}

.RD-develop-desc-itme img {
    width: 30%;
    height: var(--RD-develop-desc-itme-img-height);
    border-radius: 10px;
}

.RD-develop-desc-itme p {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20%;
    height: var(--RD-develop-desc-itme-p-height);
    font-size: var(--md-font-size);
    text-align: center;
    border-radius: 10px;
    background-color: var(--sub-center-color);
}

.RD-develop-desc {
    display: flex;
    gap: 30px;
    align-items: center;
    width: 60%;
    height: var(--RD-develop-desc-height);
    border-bottom: 1px solid var(--sub-line-color);
}

.RD-develop-desc span:nth-of-type(1) {
    font-size: var(--md-font-size);
    width: var(--RD-develop-desc-span-1-width);
}

.RD-develop-desc span:nth-of-type(2) {
    width: 1px;
    height: 50px;
    background-color: var(--main-point-color);

}

.RD-develop-desc ul>li {
    font-size: var(--md-font-size);
}

.RD-strategy-wrap {
    margin-top: 300px;
    text-align: center;
}

.RD-strategy-wrap h2,
.RD-contents-wrap h2 {
    width: 80%;
    margin: auto;
    border-top: 1px solid var(--main-point-color);
    text-align: center;
    font-size: var(--lg-font-size);
    font-weight: normal;
    padding: 50px;
    border-bottom: 1px solid var(--sub-center-color);
    margin-bottom: 90px;
}

.RD-strategy-img img {
    width: 80%;
}

.RD-strategy-img-box {
    position: relative;
}

.RD-strategy-img-group {
    text-align: right;
    top: 50%;
    left: 50%;
    position: absolute;
    padding: 20px 30px 20px 20px;
    transform: translate(-50%, -50%);
    width: var(--RD-strategy-img-group-width);
    font-size: var(--md-font-size);
    border-radius: 50px;
    font-weight: 300;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.RD-strategy-img-group strong {
    font-weight: 300;
    color: var(--main-point-color);
}

.RD-strategy-img-group span {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--RD-strategy-img-group-span-width);
    border-radius: 50px;
    background-color: var(--main-point-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.RD-strategy-desc-wrap {
    width: 80%;
    margin: auto;
    position: relative;
    margin-top: 50px;
    margin-bottom: 260px;
}

.RD-strategy-desc-items {
    display: flex;
    justify-content: space-between;
}


.RD-strategy-desc-item:nth-child(1) {
    text-align: left;
}

.RD-strategy-desc-item:nth-child(3) {
    text-align: right;
}

.RD-strategy-desc-item img {
    width: 30px;
}

.RD-strategy-desc-item p {
    font-size: var(--md-font-size);
    margin-top: 50px;
}

.RD-strategy-desc-line {
    width: 95%;
    border-bottom: 1px dashed var(--sub-line-color);
    position: absolute;
    top: 13px;
    left: 50px;
    z-index: -1;
}

.RD-strategy-desc-point {}

.RD-strategy-desc-point-l img {
    width: 300px;
    position: absolute;
    top: 3px;
    left: 18%;
}

.RD-strategy-desc-point-r img {
    width: 300px;
    position: absolute;
    top: 3px;
    right: 18%;
}

.RD-contents-wrap {
    width: 80%;
    margin: auto;
}

.RD-contents-wrap h2 {
    width: 100%;
}

.RD-contents-item-box {
    display: flex;
    justify-content: center;
    gap: 150px;
}

.RD-contents-items {
    flex: 1;
}

.RD-contents-items.padding .RD-contents-item {
    padding: 39px;
}

.RD-contents-item-title {
    padding: 25px 25px 25px 200px;
    border-radius: 50px;
    position: relative;
    font-size: var(--md-font-size);
    background-color: var(--sub-center-color);
    margin-bottom: 60px;
}

.RD-contents-item-title span {
    height: 100%;
    width: 137px;
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--main-point-color);
}

.RD-contents-item {
    border-bottom: 1px solid var(--sub-line-color);
    margin-bottom: 30px;
    font-size: var(--md-font-size);
    padding: 30px;
    font-weight: 300;
}

.RD-contents-item p {
    margin-bottom: 30px;
}

.RD-contents-item ul>li {
    margin-bottom: 5px;
}

.RD-contents-item ul>li strong {
    color: var(--main-point-color);
}

.RD-carbon-items {
    display: flex;
    width: 80%;
    margin: auto;
    margin-top: 200px;
}

.RD-carbon-item:nth-of-type(1) {
    flex: 1;
}

.RD-carbon-item:nth-of-type(2) {
    flex: 2;
}

.RD-carbon-item-title {
    padding: 30px;
    width: 100%;
    height: 80px;
    border-radius: 50px;
    background-color: var(--sub-center-color);
    display: flex;
    align-items: center;
    gap: 20px;
}

.RD-carbon-item-title span {
    flex: 6;
    width: 100%;
    height: 1px;
    background-color: var(--sub-line-color);
}

.RD-carbon-item-title p {
    flex: 4;
    font-size: var(--lg-font-size);
}

.RD-carbon-item ul {
    margin-top: 50px;
}

.RD-carbon-item ul>li {
    font-size: var(--md-font-size);
    margin-bottom: 5px;
}

.RD-carbon-icon-box {
    padding: 40px;
    text-align: right;
}

.RD-carbon-img {
    width: 100%;
}

.RD-carbon-img img:nth-of-type(1) {
    width: 100%;
    border-radius: 10px 10px 0 0;
}

.RD-carbon-img img:nth-of-type(2) {
    width: 100%;
    margin-top: -6px;
    border-radius: 0 0 10px 10px;
}

.RD-carbon-arrow {
    flex: 1;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.RD-carbon-img-box {
    margin-top: 100px;
    width: 100%;
    height: var(--RD-carbon-img-box-height);
    background-color: #ffffff;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.RD-carbon-img-box img {
    width: 95%;
    height: 95%;
}

.RD-carbon-desc-wrap {
    margin-top: 200px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 100px;
}

.RD-carbon-desc {
    flex: 4;
}

.RD-carbon-desc h2 {
    font-size: var(--lg-font-size);
    font-weight: 300;
    padding: 40px 40px 40px 0;
    display: inline-block;
    border-top: 1px solid var(--main-point-color);
}

.RD-carbon-desc p {
    font-size: var(--md-font-size);
}

.RD-carbon-desc-img {
    display: flex;
    flex: 6;
    gap: 50px;
}

.RD-carbon-desc-img-box {
    width: 35%;
    border-radius: 10px;
    text-align: center;
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.RD-carbon-desc-img-box img {
    width: 50%;
}

.RD-carbon-desc-box {
    width: 35%;
    height: 210px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background-color: var(--sub-center-color);
}

.RD-carbon-desc-box p {
    font-size: var(--md-font-size);
    text-align: center;
}

.RD-carbon-desc-img-last {
    width: 35%;
    height: 210px;
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.RD-carbon-desc-img-last img {
    height: 100%;
    width: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.RD-system-wrap {
    margin-top: 130px;
    padding: 50px 30px;
    background-color: #272727;
    position: relative;
}

.RD-system-wrap::after {
    content: '';
    width: 20%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    background-color: var(--sub-center-color);
    z-index: 1;
}

.RD-system-home-wrap {
    display: flex;
    gap: 50px;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0 0 150px 0;
    border-bottom: 1px dashed var(--sub-line-color);
    position: relative;
    z-index: 3;
}


.RD-system-title h2 {
    font-size: 24px;
    font-weight: 500;
}

.RD-system-title p {
    font-size: 24px;
    font-weight: 300;
    color: var(--main-point-color);
    margin-top: 30px;
}


.RD-system-place-item {
    position: relative;
}

.RD-system-place-item img {
    border-radius: 10px;
    margin-bottom: 20px;
    width: 100%;
}

.RD-system-place-item span {
    position: absolute;
    bottom: 25px;
    right: 0;
    padding: 7px 20px;
    background-color: var(--sub-center-color);
    border-radius: 10px 0 0 0;
}

.RD-system-icon {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-top: 100px;
}

.RD-system-icon img {
    width: 37px;
}

.RD-system-icon-item {
    text-align: center;
}

.RD-system-img {
    display: flex;
    align-items: center;
    width: 100%;
    flex-wrap: wrap;
    justify-content: space-between;
}

.RD-system-img img:nth-of-type(1),
.RD-system-img img:nth-of-type(3),
.RD-system-img img:nth-of-type(5) {
    width: 30%;
}

.RD-system-img img:nth-of-type(2),
.RD-system-img img:nth-of-type(4) {
    width: 3%;
}

.RD-system-desc {
    display: flex;
    justify-content: space-between;
    margin-top: 70px;
}

.RD-system-desc-item {
    width: 22%;
}

.RD-system-desc-title {
    display: flex;
}

.RD-system-desc-title span {
    font-size: var(--md-font-size);
    font-weight: 300;
    color: var(--main-point-color);
    padding: 10px 20px 10px 20px;
    flex: 1;
    text-align: center;
    border-bottom: 1px solid var(--main-point-color);
}

.RD-system-desc-title h4 {
    font-size: var(--md-font-size);
    font-weight: 300;
    flex: 10;
    padding: 10px;
    border-bottom: 1px solid var(--sub-line-color);
}

.RD-system-desc-item ul {
    margin-top: 30px;
}

.RD-system-desc-item ul>li {
    margin-left: 70px;
    font-size: var(--sm-font-size);
    font-weight: 300;
    margin-bottom: 10px;
    position: relative;
}

.RD-system-desc-item ul>li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50px;
    background-color: var(--main-point-color);
    position: absolute;
    top: 15px;
    left: -50px;
}

.RD-system-desc-item ul>li::after {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50px;
    background-color: var(--sub-line-color);
    position: absolute;
    top: 15px;
    left: -40px;
}


.RD-system-business-wrap {
    margin-top: 130px;
    display: flex;
    position: relative;
    z-index: 3;
}

.RD-system-sub-title {
    width: 455px;
    height: 150px;
    background: linear-gradient(to right, #e4302aa4, #ffffff00);
    text-align: center;
    margin-left: 50px;
}

.RD-system-sub-title p {
    font-size: var(--md-font-size);
    padding: 20px 0;
    margin-top: 10px;
}

.RD-system-sub-title img {
    width: clamp(150px, 20vw, 280px);
}

.RD-system-business-img {
    width: 1200px;
    height: 1000px;
    background: url('../img/business-main01.svg') no-repeat center center;
    background-size: contain;
    margin-left: 100px;
}






/* ------------- media query ------------- */
@media all and (max-width: 1200px) {

    .center-procedure-item,
    .RD-system-desc-item,
    .overview-location-items,
    .esg-desc-item,
    .RD-hydrogen-desc-item,
    .RD-title-img-item {
        width: 100%;
    }

    .center-procedure-arrow img {
        transform: rotate(180deg);
    }

    .subpage-main-content {
        flex-direction: column-reverse;
        gap: 50px;
    }

    .product-title-wrap {
        flex-direction: column-reverse;
        align-items: flex-start;
        gap: 10px;
    }

    .product-store-wrap,
    .overview-title-wrap {
        flex-direction: column;
        justify-content: center;
        gap: 100px;
    }

    .greeting-info-title img {
        width: clamp(100%, 34vw, 540px);
        margin-bottom: 150px;
    }

    .product-title-icons {
        margin-left: 0;
        margin-bottom: 20px;
    }

    .greeting-info-wrap {
        flex-direction: column;
        justify-content: center;
        gap: 100px;
        text-align: center;
    }

    .RD-strategy-desc-item,
    .greeting-account-desc {
        text-align: center;
    }


    .esg-main-img {
        background: url('../img/esg-main02.svg') no-repeat center center;
        background-size: contain;
    }

    .center-procedure-wrap {
        flex-direction: column;
        height: auto;
        text-align: center;
    }


    .charter-items-wrap {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        justify-items: stretch;
    }

    .ethics-items-wrap {
        gap: 32px;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    }

    .charter-item,
    .ethics-item {
        width: 85%;
        margin: auto;
        max-width: 634px;
        margin-left: 45px;
    }

    .overview-title-img-bg img {
        top: 700px;
    }

    .overview-history-line span:nth-child(1),
    .overview-history-line span:nth-child(2) {
        left: 30px;
    }

    .overview-history-line img {
        left: 15px;
    }

    .esg-desc-item-wrap,
    .overview-certificate-wrap {
        flex-direction: column;
        gap: 100px;
    }

    .RD-arrow01,
    .RD-arrow02,
    .center-procedure-arrow.remove,
    .RD-title-img-wrap img,
    .RD-develop-desc-arrow,
    .RD-strategy-desc-line,
    .RD-system-img,
    .RD-hydrogen-desc-box p::before,
    .RD-strategy-desc-point-l,
    .RD-strategy-desc-point-r,
    .RD-business-desc-box::before,
    .RD-system-wrap::after {
        display: none;
    }

    .RD-title-img-box {
        flex-direction: column;
        justify-content: center;
    }

    .overview-history-desc-box,
    .RD-business-desc-wrap,
    .RD-hydrogen-desc-wrap,
    .RD-hydrogen-title-wrap,
    .RD-contents-item-box,
    .RD-carbon-desc-wrap {
        flex-direction: column;
    }


    .RD-develop-desc-itme img,
    .RD-develop-desc-itme p,
    .RD-carbon-desc-img-box,
    .RD-carbon-desc-box,
    .RD-carbon-desc-img-last {
        width: 80%;
    }

    .RD-hydrogen-desc-box {
        width: 100%;
        margin-bottom: 150px;
    }

    .RD-carbon-desc-img-box {
        height: 210px;
    }

    .RD-business-img-box,
    .RD-business-wrap,
    .RD-carbon-items {
        flex-direction: column;
        gap: 100px;
    }

    .RD-business-img-l {
        width: 400px;
        background: url('../img/business-main02.svg') no-repeat center center;
        background-size: contain;
        aspect-ratio: 4 / 2.5;
    }

    .RD-business-img-r {
        width: 400px;
        background: url('../img/business-main03.svg') no-repeat center center;
        background-size: contain;
        aspect-ratio: 4 / 2.5;
    }

    .RD-business-img-desc-box {
        top: 73%;
        left: 0;
    }

    .RD-develop-h4,
    .RD-system-title {
        text-align: center;
    }

    .RD-business-img-wrap,
    .RD-strategy-desc-items {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .RD-strategy-desc-item:nth-child(1),
    .RD-strategy-desc-item:nth-child(2),
    .RD-strategy-desc-item:nth-child(3) {
        text-align: center;
        margin-bottom: 50px;
    }

    .RD-carbon-aroow img {
        transform: rotate(90deg);
    }

    .RD-carbon-desc-img,
    .overview-location-wrap {
        flex-direction: column;
        align-items: center;
        width: 100%;

    }

    .develop-mg {
        margin-top: 600px;
    }

    .RD-carbon-desc-box p {
        padding: 70px;
    }

    .RD-system-home-wrap,
    .RD-system-desc,
    .RD-system-business-wrap {
        flex-direction: column;
        gap: 50px;
        align-items: center;
        border: none;
    }

    .RD-system-icon,
    .RD-develop-desc-itme,
    .RD-system-place {
        flex-direction: column;
        gap: 50px;
    }


    .RD-system-business-img,
    .RD-business-img-wrap-in-right {
        width: 100%;
        background: url('../img/business-main01-1.svg') no-repeat center center;
        background-size: contain;
        margin-left: 0;
        min-height: clamp(1600px, 45vw, 580px);
    }

    .RD-hydrogen-desc-box img {
        top: 58%;
        left: 44%;
    }

    .RD-business-desc-box::before {
        left: 20%;
    }

    .RD-develop-desc {
        flex-direction: column;
        text-align: center;
    }

    .RD-develop-desc span:nth-of-type(2) {
        width: 50px;
        height: 1px;
    }

    .rotate,
    .RD-carbon-arrow {
        transform: rotate(90deg);
    }


}

@media all and (max-width: 1500px) {

    .RD-arrow01,
    .RD-arrow02 {
        display: none;
    }

    .RD-develop-desc-arrow {
        display: none;
    }

    .RD-develop-desc-itme p {
        height: 210px;
    }

    .RD-strategy-desc-point-r img,
    .RD-strategy-desc-point-l img {
        display: none;
    }

    .RD-system-home-wrap {
        flex-direction: column;
    }

    .RD-system-place {
        display: flex;
        gap: 50px;
    }

    .RD-system-img img {
        width: 27%;
    }

    .RD-system-img img:nth-of-type(2),
    .RD-system-img img:nth-of-type(4) {
        width: 3%;
    }
}