@charset "UTF-8";
img{
    max-width: 100%;
}
html{
    font-size: 62.5%;
}
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.loader-line {
  width: 0;
  height: 4px;
  background: #5a7aff;
  box-shadow: 
    0 0 10px #5a7aff,
    0 0 20px #5a7aff,
    0 0 40px #5a7aff,
    0 0 60px #5a7aff;
  animation: lineGlow 1.3s ease-in-out infinite;
}

@keyframes lineGlow {
  0%   { width: 0; opacity: 0.4; }
  40%  { width: 60%; opacity: 1; }
  70%  { width: 100%; opacity: 1; }
  100% { width: 0; opacity: 0.4; }
}

a:hover{
    opacity: .5;
    transition: .4s;
}
body{
    font-family: "Noto Serif JP", serif;
  font-optical-sizing: auto;
  font-weight:400;
  line-height: 1.8;
  background-color: black;
  color:white;
}
.feedIn{
    transform: translate(0, 50px);
    opacity: 0;
    transition: 0.8s;
}
.feedIn.animated{
    transform: translate(0, 0);
    opacity: 1;
}  

/* header */
.main-slider{
    display: block;
    width: 100%;
    height: auto;
    position:absolute;
    top: 0;
    left: 0;
}
.header__group{
    display: flex;
    z-index: 1;
    padding: 10px;
    justify-content: space-between;

}
.logo{
    display: block;
    width: 115px;
    height: 64px;
}
.nav{
    display: flex;
    background-color: rgba(0, 0, 0, .6);
    width: 100%;
    height: 100vh;
    z-index: 10;
    position: absolute;
    top: 0;
    left: 0;
    flex-direction: column;
    gap: 60px;
    padding: 70px 30px;
    transform: translateX(-100%);
    transition: .4s;
}
.nav.active{
    transform: translateX(0);
}
.nav a{
    font-size: 16px;
}
.logos{
    display: flex;
    position: absolute;
    right: 70px;
    gap: 30px;
z-index: 100;
}
.btn{
    display: block;
    width: 35px;
    height: 24px;
    position: absolute;
    top: 15px;
    right: 15px;
}
.close{
    display: block;
    width: 35px;
    height: 35px;
    position: absolute;
    top: 10px;
    right: 10px;
}
.lo{
    display: block;
    width: 35px;
    height: 35px;
}
/* header pc */
@media screen and (min-width:849px){
    .nav{
        transform: translateX(0);
        background-color: transparent;
       flex-direction: row;
       height: 64px;
       width: 100%;
        padding: 0;
       justify-content: center;
       align-items: center;
    }
    .btn{
        display: none;
    }
    .close{
        display: none;
    }
.logos{
    display: flex;
    position: absolute;
    right: 10px;
    gap: 30px;

}
}
.title{
    display: block;
    width: 70%;
    height: auto;
    margin: 40px auto;
}
.main-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9; 
  overflow: hidden;
}


.main-slider .slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.slide.active {
  opacity: 1;
}
/* article */
.article__title1{
    text-align: left;
}
.article__title2{
    text-align: center;
}
.article__title3{
    text-align: right;
}
.article__title4{
    text-align: center;
}
.article__title__group{
  font-size: 15px;
  padding: 15px;
}
@media screen and (min-width:769px){
.article__title__group{
  font-size: 30px;
  padding: 15px;
}
.title{
    margin: 100px auto;
}

}
/* concept */
.concept__img{
    display: block;
    width: 100%;
    height: auto;
    margin: 30px auto;
}
.concept__img__pc{
    display:none;
}
.cta1{
    display: block;
    width: 100%;
    height: auto;
    margin-top: 40px;
}
@media screen and (min-width:849px){
.concept__img__pc{
    display:block;
}
.concept__img__sp{
    display:none;
}
.cta1{
    margin-top: 100px;
}
}
.tech__seibun{
    display: block;
    width: 100%;
    height: auto;
    margin: 40px auto;
}
@media screen and (min-width:849px){
.tech__seibun{
    max-width: 900px;
}
}
.comment__list img{
    width: 80%;
    height: auto;
    margin: auto;
    display: block;
}
.comment__list{
    gap: 40px;
    display: flex;
    flex-direction: column;
}
@media screen and (min-width:849px){
.comment__list{
    gap: 40px;
    flex-direction: row;
}
.comment__list img{
    width: 90%;
}
}
.accordion-item {
  border-bottom: 1px solid rgba(255,255,255,0.2);
  padding: 0;
}

.accordion-title {
  padding: 18px 10px;
  color: #fff;
  cursor: pointer;
  font-size: 16px;
  position: relative;
  margin-top: 15px;
}

.accordion-title::after {
  content: '+';
  position: absolute;
  right: 15px;
  font-size: 20px;
  transition: .3s ease;
}

.accordion-item.active .accordion-title::after {
  content: '−';
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  color: #ddd;
  padding: 0 10px;
  transition: max-height .4s ease, padding .4s ease;
}

.accordion-item.active .accordion-content {
  padding: 10px;
  max-height: 200px;
}

.hidden {
  display: none;
}

.faq-more-btn {
  display: block;
  margin: 30px auto;
  padding: 12px 30px;
  background: transparent;
  border: 1px solid #5a7aff;
  border-radius: 30px;
  color: #dfe7ff;
  font-size: 14px;
  cursor: pointer;
  letter-spacing: 2px;
  transition: .3s;
}

.faq-more-btn:hover {
  background: rgba(90,122,255,.3);
}
@media screen and (min-width:849px){
.accordion-title {
font-size: 20px;
  margin-top: 25px;
}
.accordion-content p{
    font-size: 16px;
}
}
.footer{
    padding: 15px;
}
.footer__title{
    display: block;
    margin: 70px auto 0;
    width: 220px;
    height: auto;
}
.footer__nav{
    display: flex;
    flex-direction: column;
    gap: 20px;
    font-size: 14px;
}
.sns__title{
    text-align: center;
    margin-top: 20px;
    font-size: 16px;
}
.sns{
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 20px;
}
.footer__group2{
    font-size: 14px;
    gap: 20px;
    display: flex;
    flex-direction: column;
    margin-top: 20px;
}
.copy{
    display: flex;
    justify-content: center;
    margin: 20px;
}
@media screen and (min-width:849px){
.footer__group{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer__nav{
  flex-direction: row;
  justify-content: space-between;
  width: 100%;
  margin: 0 20px;
  font-size: 18px;
}
.footer__title{
    margin: 0;
}
.footer__logos{
    gap: 50px;
    display: flex;
}
.sns__title{
    font-size: 24px;
    margin-top: 50px;
}
.sns{
    gap:80px;
}
.footer__group2{
flex-direction: row;
justify-content: space-between;
font-size: 18px;
margin-top: 50px;
}
.copy{
    margin: 50px;
}
.footer{
    margin-top: 120px;
}
}