@charset "UTF-8";

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@100..900&family=Oswald:wght@300;500&display=swap');

:root{
    --blue_01: #005284;
    --blue_02: #00A0E2;
    --accent: #77B023;
    --text: #224459;
    --white: #fff;

    --en-size: clamp(18px, 1.5vw, 20px);
    --h2-size: clamp(25px, 2.4vw, 40px);
    --text_big: clamp(18px, 1.54vw, 25px);
    --text-mega: clamp(40px, 4.9vw, 80px);
    --text_nomal: clamp(15px, 1.05vw, 17px);
    --text_data: clamp(13px, 1vw, 14px);
}
*{
    font-size: var(--text_nomal);
    color: var(--white);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Noto Sans JP", sans-serif;
    letter-spacing: 0.05em;
    line-height: 175%;
    font-weight: 300;
}
html{
    scroll-behavior: smooth;
    background: var(--blue_01);
}
main{
    overflow: hidden;
}
img{
    width: 100%;
    height: auto;
}
.sp{
    display: none;
}
/* 背景 */
.bg-white{
    background: var(--white);
}
.bg-blue_01{
    background: var(--blue_01);
}
/* 余白 */
.container{
    max-width: 80%;
    margin: 0 auto;
}
.p-100{
    padding: 10% 0;
}
.gap-20{
    gap: 20px;
}
.gap-100{
    gap: 100px;
}
/* テキスト */
h2{
    font-size: var(--h2-size);
    font-weight: 700;
}
.en{
    font-family: "Oswald", sans-serif;
    font-weight: 500;
    line-height: auto;
    font-size: var(--en-size);
}
.big{
    font-size: var(--text_big);
    font-weight: 700;
}
.mega{
    font-size: var(--text-mega);
    font-weight: 700;
    line-height: 125%;
}
.data{
    font-size: var(--text_data);
}
.blue{
    color: var(--blue_02);
}
.green{
    color: var(--accent);
}
.black{
    color: var(--text);
}
.center{
    text-align: center;
}
/* その他 */
.wrapper{
    min-width: 100%;
}
.flex{
    display: flex;
}
.column{
    flex-direction: column;
}
.f-a-center{
    align-items: center;
}
.f-a-start{
    align-items: start;
}
ul li,
ol li{
    list-style: none;
}
a{
    text-decoration: none;
    transition: .3s;
}
a:hover{
    opacity: .5;
}
h2 .en{
    text-box-trim: trim-both;
}
.data-img span{
    display: block;
    text-align: right;
    line-height: 100%;
}
table th,
table td{
    font-size: var(--text_data);
}

/* アニメーション設定 */
/* MV */
.mv-fade-in{
    opacity: 0;
}
.mv-fade-in.in-view{
    animation: MvFadeIn 2s ease-in;
    opacity: 1;
}
@keyframes MvFadeIn{
    from{
        opacity: 0;
    }
    to{
        opacity: 1;
    }
}
/* 全体 */
.fade-in{
    opacity: 0;
}
.fade-in.in-view{
    animation: fadeIn 1s ease-in;
    opacity: 1;
}
@keyframes fadeIn{
    from{
        opacity: 0;
    }
    to{
        opacity: 1;
    }
}
.slide-in{
    opacity: 0;
}
.slide-in.in-view{
    animation: slideIn 1s ease-in-out;
    opacity: 1;
}
@keyframes slideIn{
    from{
        opacity: 0;
        transform: translateY(50px);
    }
    to{
        opacity: 1;
        transform: translateY(0);
    }
}

/* ================

main_style

================= */
/*****************
ローディング画面
******************/
#loading .loading--w{
    inset: 0;
    width: 100vw;
    height: 100vh;
    position: fixed;
    background: var(--blue_01);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 1s ease;
}
#loading .loading--w img{
    width: 20%;
    height: auto;
}
#loading.fade-out{
    opacity: 0;
    pointer-events: none;
}
/*****************
header
******************/
header{
    position: sticky;
    width: 100%;
    z-index: 999;
    top: 0;
}
.pc-header--w{
    padding: 1.5% 0;
}
header .pc{
    width: 90%;
    margin: 0 auto;
    justify-content: space-between;
    align-items: center;
}
header .pc .logo{
    align-items: center;
}
header .pc .logo span{
    font-size: clamp(18px, 2vw, 25px);
    font-weight: 500;
}
header .pc .logo a{
    gap: 10px;
}
header .pc .logo img{
    width: 60px;
    height: auto;
}
header .pc ul{
    gap: 3rem;
}
header ul li a:hover{
    opacity: 1;
    color: var(--blue_02);
}

/*****************
MV
******************/
.mv--w{
    position: relative;
}
.mv--w .h1-txt .mega{
    filter: drop-shadow(0 0 3px var(--blue_01));
}
/* MV飾り文字用CSS */
/* .mv--w .main-en-txt .en{
    font-size: clamp(35px, 5vw, 63.5px);
    line-height: 120%;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: fit-content;
    margin: 0 auto;
}
.mv--w .main-en-txt .en::after{
    content: "";
    background: url(../image/mv-line.svg) no-repeat;
    background-size: 100% 100%;
    display: block;
    width: 100%;
    height: 5rem;
} */
.mv--w .video--w{
    width: fit-content;
    margin: 0 0 0 auto;
}
.mv--w video,
.video--w img{
    width: 90vw;
    height: auto;
    aspect-ratio: 1462.5 / 822.656;
}
/* .mv--w::after{
    content: "";
    background: var(--blue_01);
    opacity: .3;
    width: 90vw;
    height: auto;
    aspect-ratio: 1462.5 / 822.656;
    display: block;
    position: absolute;
    top: 0;
    right: 0;
} */
.mv--w .main-en-txt{
    position: absolute;
    width: 100%;
    z-index: 1;
    top: 25%;
    left: 0;
}
.mv--w .h1-txt{
    margin-top: -12%;
    position: relative;
    z-index: 1;
    padding-left: 3%;
}

/*****************
about
******************/
.about--w{
    position: relative;
}
.about--w::after{
    content: "";
    display: block;
    background: url(../image/yamaguchi.svg) no-repeat;
    background-size: 100%;
    width: 45%;
    height: auto;
    aspect-ratio: 674.94 / 475.28;
    position: absolute;
    top: 0;
    right: -9%;
    z-index: -1;
}
.youtube--w iframe{
    width: 100%;
    height: auto;
    aspect-ratio: 560 / 315;
}
.about--w .txt--w a{
    text-decoration: underline;
}
.overview{
    justify-content: space-between;
}
.overview .right-cont{
    width: 55%;
}
.overview .left-cont{
    width: 40%;
}
/* 飾り文字のところ */
.middle-txt-01{
    position: relative;
    z-index: 1;
}
.middle-txt-01::after{
    content: "";
    display: block;
    position: absolute;
    width: 35%;
    height: auto;
    aspect-ratio: 511.99 / 512;
    background: url(../image/gear.svg) no-repeat;
    right: -5%;
    top: -65%;
    z-index: 1;
    background-size: 100%;
    animation: 50s linear infinite role;
}
@keyframes role{
    0%{
        transform: rotate(0);
    }
    100%{
        transform: rotate(360deg);
    }
}

/*****************
features
******************/
.features--w .content01{
    gap: 7rem;
}
.features--w .features01{
    padding: 3% 10% 3%;
    margin-left: 10%;
    position: relative;
}
.features--w .features01::before{
    content: "Feature01";
    font-family: "Oswald", sans-serif;
    position: absolute;
    font-size: 3rem;
    top: -3.5rem;
    left: 0;
    font-weight: 500;
    letter-spacing: inherit;
    text-box-trim: trim-both;
}
.features--w .features02{
    padding: 3% 10% 3%;
    margin-right: 10%;
    position: relative;
}
.features--w .features01 p,
.features--w .features02 p{
    text-align: justify;
}
.features--w .features02::before{
    content: "Feature02";
    font-family: "Oswald", sans-serif;
    position: absolute;
    font-size: 3rem;
    top: -3.5rem;
    right: 0;
    font-weight: 500;
    letter-spacing: inherit;
    text-box-trim: trim-both;
}
.features--w .features01 h3,
.features--w .features02 h3{
    border-bottom: 1px solid var(--blue_02);
    width: fit-content;
}
/* content02 */
.features--w .content02{
    background: url(../image/nami-photo.webp) no-repeat;
    background-size: 100% 100%;
    padding: 10% 0;
    gap: 50px;
}
.flex-cont_3col{
    gap: 10px;
    flex-wrap: wrap;
    align-items: stretch;
    justify-content: space-between;
}
.flex-cont_3col h3{
    border: 1px solid #fff;
    padding: 5%;
    background: var(--blue_01);
    border-bottom: none;
}
.flex-cont_3col .flex{
    width: calc((100% / 3) - 10px);
}
.flex-cont_3col p{
    background: rgba(255,255,255,0.8);
    border: 1px solid #fff;
    color: var(--text);
    padding: 5%;
    flex-grow: 1;
}
.flex-cont_6col{
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: stretch;
}
.flex-cont_6col .big{
    border: 1px solid #fff;
    width: calc((100% / 4) - 1rem);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2%;
}
.features--w .note{
    text-align: right;
    width: 100%;
}
/* content03 周南コンビナート */
.features--w .content03{
    background: url(../image/industrial-complex.webp) no-repeat;
    background-size: 100%;
    padding: 5% 0 25% 0;
}
.content03 h3{
    padding: .5rem 0;
    width: fit-content;
    margin: 0 auto;
    border-bottom: 1px solid #fff;
    border-top: 1px solid #fff;
    margin-bottom: 30px;
}

/*****************
data
******************/
h3.data-ttl{
    width: fit-content;
    padding: .5rem 1rem;
    position: relative;
}
h3.data-ttl::before{
    content: "";
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    bottom: -7px;
    right: -7px;
    border-right: 1px solid #fff;
    border-bottom: 1px solid #fff;
}
.data--w{
    position: relative;
}
.data--w::before{
    content: "";
    position: absolute;
    display: block;
    width: 45%;
    height: auto;
    aspect-ratio: 604 / 362.12;
    background: url(../image/boat.svg) no-repeat;
    background-size: 100% 100%;
    top: -3%;
    right: -8%;
    animation: huwa infinite 2s ease-in-out alternate;
}
@keyframes huwa{
    0%{
        transition: translateY(0);
    }
    100%{
        transform: translateY(3%);
    }
}
.data--w .data01{
    gap: 50px;
    padding: 10% 0;
}
.data--w .data01 .flex01,
.data--w .data01 .flex02,
.data--w .data02 .flex01{
    justify-content: space-between;
}
.data--w .data01 .flex02{
    align-items: stretch;
}
.data--w .data01 .flex01 p,
.data--w .data02 .flex01 p{
    width: 45%;
}
.data--w .data01 .flex01 .data-img,
.data--w .data02 .flex01 .data-img,
.data--w .data02 .flex02 .data-img,
.data--w .data02 .flex03 .data-img{
    width: 50%;
}
.data--w .data01 .flex02 .data-img:nth-of-type(1){
    width: 56%;
}
.data--w .data01 .flex02 .data-img:nth-of-type(2){
    width: 43.6%;
}
.data--w .data02{
    gap: 50px;
}
.data--w .data01 .flex02,
.data--w .data02 .flex02,
.data--w .data02 .flex03{
    gap: 2rem;
}

/*****************
map
******************/
.map-cont--w{
    aspect-ratio: 1010 / 595;
}
.map--w .container{
    padding: 5% 0 10% 0;
}
.map--w .content.flex{
    gap: 50px;
}
details summary{
    list-style: none;
}
summary::-webkit-details-marker{
    display: none;
}
summary{
    align-items: center;
    justify-content: space-between;
    border-bottom: #fff 1px solid;
    padding: 1rem 0;
    margin-bottom: 3%;
}
summary:hover{
    cursor: pointer;
}
summary::after{
    content: "";
    width: 1rem;
    height: 1rem;
    background: #fff;
    display: block;
    clip-path: polygon(0 0, 100% 50%, 0 100%);
    transition: .2s;
}
details[open] summary::after{
    transform: rotate(90deg);
}
details span{
    display: block;
    width: 90%;
    margin: 0 auto;
    text-align: right;
}
/* 表 */
table{
    border-collapse: collapse;
    width: 90%;
    margin: 0 auto;
}
table a{
    text-decoration: underline;
    color: var(--text);
}
table tr th{
    color: #fff;
    background: var(--blue_02);
}
table td{
    border: var(--blue_01) 1px solid;
    background: #fff;
    color: var(--text);
}
table th{
    border: 1px solid #fff;
}
table th,
table td{
    padding: .5rem .3rem;
}
table tr:first-child th:not(:nth-of-type(2)){
    width: 10%;
}

/*****************
amount
******************/
.amount--w a:hover{
    opacity: 1;
    /* outline: 1px solid #fff; */
}
.amount--w .container{
    padding-top: 0;
    gap: 50px;
}
/* ページ内リンク場所調整 */
.amount--w{
    padding-top: 7%;
    margin-top: -7%;
}

/*****************
future
******************/
.future--w{
    position: relative;
    z-index: 1;
}
.future--w::after{
    content: "";
    display: block;
    width: 25%;
    height: auto;
    aspect-ratio: 362.5 / 393.6;
    background: url(../image/anchor.svg) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    z-index: -1;
    top: -5%;
    right: -3%;
    animation: yura infinite 8s ease-in-out alternate;
    transform: rotate(5deg);
}
@keyframes yura{
    50%{
        transform: rotate(-5deg);
    }
    100%{
        transform: rotate(5deg);
    }
}
.future--w .container{
    gap: 50px;
}
.future--w .content02{
    gap: 50px;
}
.future--w .content02 h3{
    border-bottom: 1px solid var(--blue_02);
    padding-bottom: 5px;
}
.future--w .grid{
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
}
.future--w .grid .cont{
    gap: 1rem;
}

/*****************
history
******************/
.history--w .content--w{
    gap: 2rem;
}
.history--w .history-cont--w{
    gap: 1rem;
}
.history--w .content--w .matter{
    gap: 1rem;
}
.history--w .content--w .pochi{
    gap: 10px;
    width: 5rem;
}
.history--w .content--w .pochi::before{
    content: "";
    width: .6rem;
    height: .6rem;
    border-radius: 100vh;
    display: block;
    background: #fff;
}
.history--w .content{
    gap: 50px;
}
.history--w .green-pochi .era,
.history--w .era{
    position: relative;
    height: fit-content;
    white-space: nowrap;
}
.history--w .green-pochi .era::after{
    content: "";
    width: .6rem;
    height: .6rem;
    border-radius: 100vh;
    display: block;
    background: var(--accent);
    position: absolute;
    bottom: -1rem;
    margin: 0 auto;
    right: 0;
    left: 0;
}
.history--w .green-pochi{
    position: relative;
}
.history--w .green-pochi::before{
    content: "";
    height: calc(100% - 5rem);
    left: calc(var(--text_big) + .5px);
    /* bottom: 1.52rem; */
    top: calc(var(--text_big) + 1rem + .6rem);
    display: block;
    width: 1px;
    background: #fff;
    position: absolute;
    z-index: 0;
}
/* ページ内リンク位置調整 */
.history--w{
    padding-top: 7%;
    margin-top: -7%;
}

/*****************
画像パララックス部分
******************/
.parallax-container {
    position: relative;
    overflow: hidden;
    height: 40vh;
}
.parallax-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    object-fit: cover;
    transform: translateY(0);
    transition: transform 0.1s linear;
}
.parallax-image.pc {
    display: block;
}
.parallax-image.sp {
    display: none;
}
@media (max-width: 768px) {
    .parallax-image.pc {
        display: none;
    }
    .parallax-image.sp {
        display: block;
    }
}


/*****************
footer
******************/
footer .en{
    font-weight: 300;
    display: block;
    text-align: center;
    font-size: 14px;
    padding: 1rem;
}

/**********************

レスポンシブ

***********************/
/*****************
max-width: 768px
******************/
@media screen and (max-width: 768px){
    .pc{
        display: none;
    }
    .sp{
        display: block;
    }
    /*****************
    ハンバーガー
    ******************/
    .sp-header{
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 5%;
        position: relative;
    }
    .sp-header .logo--w{
        width: 10%;
        z-index: 9999;
    }
    .sp-header .menu-checkbox{
        display: none;
    }
    .menu-button{
        width: 3rem;
        height: 2.5rem;
        cursor: pointer;
        justify-content: space-between;
        z-index: 9999;
    }
    .menu-button span{
        height: 3px;
        display: block;
        background: #fff;
        transition: all .2s ease;
    }
    .sp-header nav{
        position: absolute;
        top: 0;
        right: -100vw;
        background: var(--blue_01);
        z-index: 0;
        padding: 0 7%;
        width: 100%;
        max-height: 0;
        overflow: hidden;
        transition: right .3s ease;
        /* display: none; */
    }
    .sp-header nav::after{
        content: "";
        width: 60%;
        height: auto;
        aspect-ratio: 511.99 / 512;
        background: url(../image/gear.svg) no-repeat;
        background-size: 100% 100%;
        position: absolute;
        opacity: .2;
        bottom: 5%;
        right: -2%;
        z-index: -1;
        animation: 10s linear infinite role;
    }
    @keyframes role{
        0%{
            transform: rotate(0);
        }
        100%{
            transform: rotate(360deg);
        }
    }
    .sp-header nav ul li a{
        padding: 5% 0;
        display: block;
        border-bottom: 1px solid #fff;
        font-size: var(--text_big);
    }
    .sp-header nav ul li:nth-of-type(1) a{
        border-top: 1px solid #fff;
    }
    .menu-checkbox:checked + .menu-button span{
        background: var(--blue_02);
    }
    .menu-checkbox:checked + .menu-button span:nth-child(1){
        transform: rotate(45deg) translate(12px, 12px);
    }
    .menu-checkbox:checked + .menu-button span:nth-child(2){
        opacity: 0;
    }
    .menu-checkbox:checked + .menu-button span:nth-child(3){
        transform: rotate(-45deg) translate(10px, -12px);
    }
    .menu-checkbox:checked ~ nav{
        right: 0;
        height: 100vh;
        height: 110vh;
        max-height: 100vh;
        top: 0;
        padding: calc(7% + 3rem) 7% 7%;
        /* display: block; */
        z-index: 999;
    }
    .pc-header--w{
        padding: 3% 0;
    }
    body.hidden{
        overflow: hidden;
    }

    /*****************
    about
    ******************/
    .about--w::after{
        top: -4%;
    }
    .overview{
        flex-direction: column;
        gap: 30px;
    }
    .overview .left-cont,
    .overview .right-cont{
        width: 100%;
    }
    .flex-cont_3col{
        gap: 1rem;
        justify-content: center;
    }
    .flex-cont_3col .flex{
        width: calc((100% / 2) - 10px);
    }
    .flex-cont_6col .big{
        width: calc((100% / 3) - 1rem);
    }

    /*****************
    data
    ******************/
    .data--w .data01 .flex01,
    .data--w .data01 .flex02,
    .data--w .data02 .flex01{
        flex-direction: column;
    }
    .data--w .data01 .flex01 p,
    .data--w .data02 .flex01 p{
        width: 100%;
        margin-bottom: 30px;
    }
    .data--w .data01 .flex01 .data-img,
    .data--w .data02 .flex01 .data-img,
    .data--w .data02 .flex02 .data-img,
    .data--w .data02 .flex03 .data-img,
    .data--w .data01 .flex02 .data-img:nth-of-type(1),
    .data--w .data01 .flex02 .data-img:nth-of-type(2){
        width: 100%;
    }
    .data--w .data01 .flex02,
    .data--w .data02 .flex02,
    .data--w .data02 .flex03{
        flex-direction: column;
    }

    /*****************
    map
    ******************/
    .map-cont--w{
        aspect-ratio: 1010 / 800;
    }

    /*****************
    features
    ******************/
    .features--w .content03{
        background: url(../image/sp_industrial-complex.webp) no-repeat;
        background-size: 100%;
    }

    /*****************
    画像パララックス
    ******************/
    .parallax-container{
        height: 28vh;
    }
}

/*****************
max-width: 428px
******************/
@media screen and (max-width: 428px){

    .gap-100{
        gap: 50px;
    }
    .container{
        max-width: 90%;
    }

    /* ページ内リンク位置調整 */
    #about,
    #features,
    #data{
        padding-top: 10%;
        margin-top: -10%;
    }
    #map{
        padding-top: 15%;
        margin-top: -15%;
    }
    #amount,
    #history{
        padding-top: 20%;
        margin-top: 20%;
    }

    /*****************
    header
    ******************/
    .pc-header--w{
        padding: 5% 0;
    }
    .menu-button{
        height: 2rem;
    }
    .sp-header .logo--w{
        width: 13%;
    }
    .sp-header .logo--w a img{
        display: block;
    }
    .menu-checkbox:checked + .menu-button span:nth-child(1){
        transform: rotate(45deg) translate(11px, 11px);
    }
    .menu-checkbox:checked + .menu-button span:nth-child(3){
        transform: rotate(-45deg) translate(9px, -11px);
    }
    /*****************
    mv
    ******************/
    .mv--w .video--w{
        margin: 0;
    }
    /* .mv--w::after, */
    .mv--w video,
    .video--w img{
        width: 100%;
    }
    .mv--w .h1-txt{
        margin-top: -8%;
    }

    /*****************
    about
    ******************/
    .about--w::after{
        top: -6%;
        width: 94%;
        right: -25%;
        opacity: .2;
    }
    .middle-txt-01 .mega{
        font-size: 200%;
    }
    .middle-txt-01::after{
        z-index: -1;
        opacity: .2;
        width: 50%;
        right: -12%;
        top: -30%;
    }

    /*****************
    features
    ******************/
    .future--w::after{
        opacity: .2;
        width: 68%;
        top: 1%;
        right: -16%;
    }
    .features--w .content01{
        margin: 15% 0;
    }
    .flex-cont_3col{
        gap: 2rem;
    }
    .flex-cont_3col .flex{
        width: 100%;
    }
    .flex-cont_6col .big{
        width: calc((100% / 2) - 1rem);
    }
    .features--w .content02{
        background: url(../image/sp_nami-photo.webp) no-repeat;
        background-size: 100%;
        background-position: center center;
    }
    .features--w .content03{
        background-position: bottom;
        background-color: #192137;
        padding: 10% 0 40% 0;
    }

    /*****************
    data
    ******************/
    .data--w::before{
        opacity: .2;
        width: 70%;
        top: .5%;
    }

    /*****************
    map
    ******************/
    .map-cont--w{
        aspect-ratio: 1 / 1.5;
    }
    table{
        width: 100%;
    }

    /*****************
    future
    ******************/
    .future--w .grid{
        grid-template-columns: 1fr;
    }

    /*****************
    history
    ******************/
    .history--w .content--w .matter{
        flex-direction: column;
        align-items: start;
        gap: 0;
    }
    .history--w .flex--w{
        gap: 10px;
    }
    .history--w .history-cont--w{
        gap: 2rem;
    }
    .history--w .matter span:not(:first-child){
        padding-left: 1.5rem;
    }
    .history--w .content--w .pochi:empty{
        display: none;
    }

}