:root {
    --font-color: #201D1E;
    --accent-color: #A2062C;
    --en-font: "brother-1816-printed", sans-serif;
    --jp-font: "游ゴシック Medium", "Yu Gothic Medium", "游ゴシック体", YuGothic, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", メイリオ, Meiryo, sans-serif;
    --base-vw: 1920;
    --vw: 1920px;
    --section-scale: calc(1320 / 1920);
}
@media (max-width: 768px) {
  :root { 
    --base-vw: 768;
    }
}
@font-face {
    font-family: 'Notera';
    src: url('../fonts/Notera_PersonalUseOnly.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}
html {
    scroll-behavior: smooth;
    font-size: calc(100vw / var(--base-vw));
}
body {
    font-size: 20rem;
    font-family: var(--jp-font);
    color: var(--font-color);
}
a {
	margin: 0;
	padding: 0;
	text-decoration: none;
	color: inherit;
	-webkit-transition: all .3s ease;
	transition: all .3s ease;
}
a:hover{
    opacity: .5;
}
.l-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow: hidden;
}
.container {
    width: calc(var(--vw, 100vw) * var(--section-scale));
    max-width: none; 
    margin-inline: auto;
    box-sizing: border-box;
}
.section_inner {
    margin-top: 120rem;
}
.section_heading {
    position: relative;
    display: inline-flex;
    align-items: center;
    font-size: 30rem;
    font-weight: 600;
    font-family: var(--en-font);
    letter-spacing: 0.1em;
    line-height: 1;
    padding-left: var(--heading-offset);
    --heading-offset: 20rem;
}
.howto .section_heading {
    --heading-offset: 120rem;
}
.lineup .section_heading {
    --heading-offset: 320rem;
}
.section_heading-jp {
    padding-left: 10rem;
    font-size: 24rem;
    font-family: var(--jp-font);
    color: #949291;
}
.section_heading-en,
.section_heading-jp {
  display: inline-block;
  opacity: 0;
  transform: translateY(20px);
}
.section_heading::before {
  content: "";
  position: absolute;
  top: 50%;
  height: 1px;
  background:#908D8D;
  left: calc(
    -1 * (
      (var(--vw, 100vw) - calc(var(--vw, 100vw) * var(--section-scale))) / 2 + 20rem
    )
  );
  width: calc(
    (var(--vw, 100vw) - calc(var(--vw, 100vw) * var(--section-scale))) / 2 + var(--heading-offset)
  );
  transform-origin: left center;
  transform: translateY(-50%) scaleX(0);
  transition: transform 2s ease;
}
.howto .section_heading::before {
    width: calc(
        (var(--vw, 100vw) - calc(var(--vw, 100vw) * var(--section-scale))) / 2 + 120rem
    );
}
.lineup .section_heading::before {
    width: calc(
        (var(--vw, 100vw) - calc(var(--vw, 100vw) * var(--section-scale))) / 2 + 320rem
    );
}
.section_heading.is-line-active::before {
  transform: translateY(-50%) scaleX(1);
}
.attention .section_heading {
    gap: inherit;
}
span.spacer {
    display: block;
    padding-top: 20rem;
}
.text-bold {
    font-weight: bold;
}
.on-color {
    color: var(--font-color);
    transition: color 1s ease;
    will-change: color;
}
.on-color.active {
    color: var(--accent-color);
  }
.br-pc {
  display: inline;
}
.br-sp {
  display: none;
}
@media (max-width: 768px) {
    html {
        font-size: 0.7px;
    }
    .container {
        width: auto;
        padding-inline: 40rem;
    }
    .br-pc {
        display: none;
    }
    .br-sp {
        display: inline;
    }
    .section_heading-jp {
        font-size: 16rem;
    }
    .howto .section_heading {
        --heading-offset: 60rem;
    }
    .lineup .section_heading {
        --heading-offset: 180rem;
    }
    .howto .section_heading::before {
        width: calc(
            (var(--vw, 100vw) - calc(var(--vw, 100vw) * var(--section-scale))) / 2 + 60rem
        );
    }
    .lineup .section_heading::before {
        width: calc(
            (var(--vw, 100vw) - calc(var(--vw, 100vw) * var(--section-scale))) / 2 + 180rem
        );
    }
}


.sidebar {
  position: fixed;
  top: 50%;
  right: 60rem;
  transform: translateY(-50%);
  width: fit-content;
  opacity: 1;
  transition: opacity 0.6s ease;
  z-index: 100;
}
.sidebar_list {
    display: flex;
    flex-direction: column;
    gap: 20rem;
}
.sidebar_item_link_icon {
    width: 36rem;
    height: 36rem;
}
@media (max-width: 768px) {
    .sidebar {
        right: 15rem;
    }
    .sidebar_item_link_icon {
        width: 24rem;
        height: 24rem;
    }
}


.hero {
    position: relative;
}
.hero_visual {
    width: 84.38%;
    max-width: 100%;
    padding-top: 40rem;
}
.hero_visual_cont {
    position: relative;
}
.hero_visual_cont_bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .2);
    border-radius: 0 10px 10px 0;
    z-index: 2;
}
.hero_visual_image {
    width: 100%;
    height: auto;
    display: block;
    margin-right: auto;
    border-radius: 0 10px 10px 0;
}
.hero_visual_image.welcome {
    position: absolute;
    inset: 50%;
    transform: translate(-50%, -50%);
    max-width: 1000rem;
    width: 80%;
    z-index: 3;
    opacity: 0;
    will-change: opacity;
}
.is-ready .hero_visual_image.welcome{
    animation: welcomeFadeIn 3s ease .15s both;
}
@keyframes welcomeFadeIn {
  from{ opacity:0 }
  to  { opacity:1 }
}
.hero_nav {
    padding-top: 3.5rem;
}
.hero_nav.container {
    margin-inline-end: initial;
}
.hero_nav_list {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    padding: 40rem 0;
    border-bottom: 1px solid rgba(42, 38, 37, .5);
}
.hero_nav_item {
    font-family: var(--en-font);
    font-weight: 500;
    letter-spacing: 0.075em;
    text-align: center;
}
.hero_nav_item-login .hero_nav_link {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 100rem;
    margin-inline: auto;
    color: #fff;
    background-color: #878585;
    border-radius: 50px;
}
.hero_intro {
    padding-top: 80rem;
}
.hero_title {
    margin: 0;
    font-size: 24rem;
    font-weight: 600;
    font-family: var(--en-font);
    letter-spacing: 0.05em;
}
.hero_title .on-color {
    display: inline-block;
    padding: 0 12rem;
}
.hero_lead {
    margin-top: 20rem;
    font-size: 20rem;
    line-height: 2;
}
.scroll {
    display: flex;
    align-items: center;
    flex-direction: column;
    position: fixed;
    right: 100rem;
    bottom: 40rem; 
    z-index: 10;
}
.scroll-arrow {
    width: 60rem;
    margin-bottom: 40rem;
    transform: rotate(90deg);
}
.scroll_text {
    font-family: var(--en-font);
    font-size: 20rem;
    color: var(--font-color);
    writing-mode: vertical-rl;
}
.js-sidebar,
.js-scroll {
  opacity: 1;
  transition: opacity 0.6s ease;
}
.is-hidden {
  opacity: 0;
  pointer-events: none;
}
@media (max-width: 768px) {
    .hero_nav.container {
        padding-inline-end: 10rem;
    }
    .hero_visual {
        width: 100%;
        padding-right: 40rem;
    }
    .hero_nav_list {
        grid-template-columns: repeat(3, 1fr);
        row-gap: 12rem;
    }
    .hero_nav_item {
        text-align: left;
    }
    .hero_intro {
        padding-top: 40rem;
    }
    .scroll {
        right: 0;
    }
}
@media (max-width: 450px) {
    .hero_nav_item {
        font-size: 18rem;
    }
}


#concept,
#feature,
#howto,
#lineup,
#attention {
  scroll-margin-top: 60rem;
}
.concept_cont {
    position: relative;
    display: grid;
    grid-template-columns: 10% auto;
    margin-top: 60rem;
    padding: 60rem 0;
    background: none;
    border-radius: 10px 0 0 10px;
    z-index: 0;
}
.concept_cont::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: calc(50% - 50vw);
    background: #F6F5F5;
    border-radius: 10px 0 0 10px;
    z-index: -1;
}
.concept_en {
    margin-right: auto;
    margin-left: 40rem;
    writing-mode: vertical-rl;
    text-align: center;
    letter-spacing: .1em;
    font-family: var(--en-font);
}
.concept_heading {
    position: relative;
    font-size: 30rem;
    font-family: var(--en-font);
    font-weight: 600;
    letter-spacing: .1em;
}
.concept_heading:after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -20rem;
    width: 50rem;
    height: 1px;
    background-color: #2A2625;
}
.concept_desc {
    padding-top: 50rem;
    letter-spacing: .05em;
    line-height: 1.75;
}
.pv {
    margin-top: 80rem;
}
@media (max-width: 768px) {
    .concept_wrap {
        padding-inline: 30rem;
    }
    .concept_en {
        margin-left: 25rem;
    }
}


.feature_desc {
    padding-top: 40rem;
    letter-spacing: 0.05em;
    line-height: 2;
}
.feature_point {
    display: flex;
    gap: 80rem;
    padding-top: 60rem;
}
.feature_point_thumb {
    max-width: 500rem;
    aspect-ratio: 1 / 1;
}
.feature_point_thumb_image {
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}
.feature_point_en {
    display: inline-block;
    font-family: 'Notera';
    font-size: 50rem;
    letter-spacing: .02em;
    transform: rotate(-8deg);
}
.feature_point_item {
    position: relative;
    padding-top: 30rem;
    font-size: 18rem;
    letter-spacing: .05em;
    line-height: 2;
}
.feature_point_item::before {
    content: "✔";
    position: absolute;
    top: 30rem;
    left: 0;
}
.feature_point_text {
        display: block;
        padding-left: 40rem;
}
@media (max-width: 768px) {
    .feature_point {
        flex-direction: column;
        gap: 20rem;
    }
    .feature_point_thumb {
        max-width: 100%;
    }
    .feature_point_text {
        padding-left: 30rem;
    }
    .feature_point_item {
        line-height: 1.75;
    }
}


.howto_step_list {
    padding-top: 40rem;
}
.howto_step_item {
    position: relative;
    padding-top: 20rem;
}
.tri-down {
    display:inline-block;
    width:0;
    height:0;
    margin: 40rem 0 0 45rem;
    border-left: 10rem solid transparent;
    border-right: 10rem solid transparent;
    border-top: 17.5rem solid #868483;
}
.howto_step_num {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 120rem;
    height: 30rem;
    color: #fff;
    background-color: var(--font-color);
    border-radius: 50px;
    font-family: var(--en-font);
    letter-spacing: .1em;
    text-align: center;
}
.howto_step_desc {
    padding-top: 20rem;
    letter-spacing: .05em;
    line-height: 2;
}
.howto_step_desc .line-dotted {
    position: relative;
    display: inline-block;
    line-height: 1.75;
}
.howto_step_desc .line-dotted:after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 2rem;
    bottom: 0;
    background:
    repeating-linear-gradient(
        to right,
        #8F8D8C 0 4rem,
        transparent 2rem 7rem
    );
    pointer-events: none;
}
.howto_step_desc .text-bold.on-color {
    width: 83rem;
    height: 30rem;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    margin-inline: 8rem;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    border-radius: 4px;
    font-weight: 600;
}


.lineup_desc {
    padding-top: 60rem;
    letter-spacing: .05em;
    line-height: 2;
}
.lineup_slider {
      position: relative;
  margin: 40rem auto 0;
  border-radius: 10px;
  overflow: hidden;
}
.swiper-slide_image{
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}


.attention .section_heading .on-color {
    color: var(--accent-color);
}
.attention_cont {
    padding-top: 60rem;
}
.attention_item:nth-child(n+2) {
    padding-top: 40rem;
}
.attention_heading {
    display: flex;
    align-items: center;
    gap: 4rem;
    font-weight: 600;
}
.attention_heading .square {
    font-size: 12rem;
    color: #908D8D;
}
.attention_desc {
    line-height: 2;
}


.cta {
    position: relative;
    background: url(../images/cta-bg.jpg) center/cover no-repeat;
    height: 450rem;
    display: grid;
    place-items: center;
    margin-top: 120rem;
}
.cta_bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .25);
}
.cta_inner {
    position: relative;
    text-align: center;
    color: #fff;
}
.cta_btn {
    display: block;
    max-width: 700rem;
    height: 75rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10rem;
    margin-top: 60rem;
    margin-inline: auto;
    border: 1px solid #fff;
    border-radius: 50px;
}
.cta_btn_arrow {
    display: block;
    width: 40rem;
}
@media (max-width: 768px) {
    .cta_inner {
        padding-inline: 40rem;
    }
    .cta_btn {
        max-width: 500rem;
    }
    .cta_desc {
        text-align: left;
        line-height: 1.75;
    }
}


.footer {
    position: relative;
}
.footer_inner {
    display: flex;
    padding: 120rem 0;
    gap: 60rem;
}
.footer_logo {
    width: 160rem;
}
.footer_map {
    display: flex;
    flex-direction: column;
    line-height: 2;
    letter-spacing: .05em;
}
.footer_map_link {
    color: var(--font-color);
}
.copyright {
    margin-top: 40rem;
    font-size: 14rem;
    font-family: var(--en-font);
    font-weight: 600;
    color: var(--font-color);
}
.footer .scroll {
    flex-direction: column-reverse;
    position: absolute;
    bottom: 120rem;
}
.footer .scroll-arrow {
    margin-top: 40rem;
    transform: rotate(-90deg);
}
@media (max-width: 768px) {
    .footer_inner {
        padding: 80rem 0;
        padding-inline: 40rem;
    }
    .footer_logo {
        max-width: 120rem;
    }
    .footer .scroll {
        right: 0;
    }
    .copyright {
        font-size: 12rem;
    }
}