@charset "UTF-8";
html{font-size: 62.5%;}
* {box-sizing: border-box;}
body {
	line-height: 1.4;
	display: block;
  font-family: "Noto Sans JP", sans-serif;
	min-width: 320px;
	font-weight: 400;
  background: #000;
}
body * {
	font-weight: 400;
}
main{
	overflow: hidden;
}
.relative{
	position: relative;
}
.absolute{
	position: absolute;
}
img{
	width: 100%;
	font-size: 0;
}
.flex{
	display: flex;
	flex-wrap: wrap;
}
.w-1100{
	max-width: 1140px;
	padding: 0 20px;
	margin-inline: auto;
}
.txt-center{
	text-align: center;
}
.txt-end{
	text-align: end;
}
.en{
  font-family: "Montserrat", sans-serif;
	font-optical-sizing: auto;
	font-weight: 500;
	font-style: normal;
}
.btn{
	display: flex;
	justify-content: center;
}
.btn a{
  position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
	width: 280px;
	height: 50px;
	background: #000;
	border: solid 1px #000;
	font-size: 1.8rem;
	color: #fff;
  border-radius: 30px;
}
header .btn a{
	width: 200px;
	height: 38px;
  background: #fff;
  border: solid 1px #000;
  color: #000;
  font-size: 1.4rem;
}
header .btn a::after{
  content: "";
  width: 20px;
  height: 20px;
  background-image: url(../image/btn-black_arrow.png);
  background-position: center;
  background-size: contain;
  background-position: center;
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
}
footer .btn a::after{
  content: "";
  width: 30px;
  height: 30px;
  background-image: url(../image/btn-white_arrow.png);
  background-position: center;
  background-size: contain;
  background-position: center;
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
}
.thum{
	margin-bottom: 1%;
	padding-top: 66.666%;
	overflow: hidden;
}
.thum img{
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	object-fit: cover;
}
.fs0{
  font-size: 0;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
section{padding: 10% 0;}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
}

.nav-container {
  height: 60px;
  padding: 0 50px 0 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  width: 180px;
  gap: 8px;
  text-decoration: none;
  color: white;
}

.logo-icon {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 700;
  font-size: 20px;
}

.logo-text-main {
  color: white;
}

.logo-text-sub {
  font-size: 14px;
  color: white;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  color: white;
  text-decoration: none;
  font-size: 14px;
  transition: opacity 0.3s;
}

.nav-link:hover {
  opacity: 0.7;
}

.btn-contact {
  background: white;
  color: black;
  border: none;
  border-radius: 24px;
  padding: 8px 24px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background 0.3s;
  font-family: 'Noto Sans JP', sans-serif;
}

.btn-contact:hover {
  background: rgba(255, 255, 255, 0.9);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: white;
  transition: all 0.3s;
}

/* fv Section */
.fv {
  padding-top: 60px;
  padding-bottom: 0;
}
.fv-image .sp{display: none;}
.fv-content {
  padding: 3%;
  bottom: 0;
  left: 0;
  background: #000;
  border-radius: 0 60px 0 0;
}

.fv-title {
  color: white;
  font-size: 4.8rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
}
.fv-title br{
  display: none;
}
.fv-content span{
  font-size: 1.6rem;
  color: white;
}
.fv-content h2{
  font-size: 2.5rem;
  color: white;
  font-weight: 600;
}

.fv-text {
  color: white;
  font-size: 1.6rem;
  line-height: 1.4;
}

/* About Section */
.section-about {
  color: white;
}
.section-about .section-header{
  margin-bottom: 20px;
}

.about-grid {
  display: grid;
  grid-template-columns: 30% 1fr;
  gap: 64px;
  align-items: center;
}

.about-logo {
  display: flex;
  justify-content: center;
}

.quad-logo {
  width: 70%;
  text-align: center;
}

.quad-shapes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.quad-shape {
  width: 96px;
  height: 96px;
  background: white;
}

.quad-shape.circle {
  border-radius: 50%;
}

.quad-shape.triangle {
  background: transparent;
  border-left: 48px solid transparent;
  border-right: 48px solid transparent;
  border-bottom: 96px solid white;
  width: 0;
  height: 0;
}

.quad-text {
  font-size: 32px;
  font-weight: 700;
  color: white;
}

.section-header {
  display: flex;
  align-items: end;
  gap: 14px;
}

.section-title {
  font-size: 5.5rem;
  line-height: 1;
  color: #fff;
}

.section-subtitle {
  font-size: 1.4rem;
}

.about-heading {
  font-size: rem;
  font-weight: 700;
  margin-bottom: 15px;
}
.about-heading br{
  display: none;
}

.about-text {
  font-size: 1.6rem;
  line-height: 1.8;
}

.about-text p {
  margin-bottom: 8px;
}
.section-about .bg-line{
  top: -8%;
  left: 0;
  width: 100%;
  z-index: -1;
}

/* Service Section */
.section-service .section-title{
  color: #fff;
}
.section-service .section-subtitle{
  color: #fff;
}
.section-service {
  background:rgba(255, 255, 255, .2);
}

.service-header {
  margin-bottom: 48px;
}

.service-description {
  font-size: 1.4rem;
  color: #fff;
  margin-top: 10px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.service-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.3s;
}

.service-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.service-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-badge {
  position: absolute;
  bottom: 0;
  left: 0;
  background: black;
  color: white;
  padding: 8px 16px;
  font-weight: 700;
  font-size: 14px;
  border-radius: 0 10px 0 0;
}

.service-text {
  padding: 10px;
}

.service-text h3{
  font-size: 2.2rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.service-text p {
  font-size: 1.4rem;
  line-height: 1.4;
}

/* Company Section */
.section-company {
  color: white;
}

.company-header {
  margin-bottom: 48px;
}

.company-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
}

.company-image {
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.company-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.company-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.company-row {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid #444;
}

.company-label {
  font-size: 14px;
  color: #999;
}

.company-value {
  font-size: 14px;
}
.company-value a{color: #fff; pointer-events: none;}

/* News Section */
.section-news {
  padding:0 0 10% 0;
}

.section-news .section-title,
.section-news .section-subtitle {
  color: white;
}

.news-item{
  background: #fff;
  border-radius: 10px;
}
.news-header {
  margin-bottom: 48px;
}

.news-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.news-item {
  border-bottom: 1px solid #e5e5e5;
}

.news-item.open .news-box::after{
  top: 60%;
  transform: translateY(-50%) rotate(-45deg);
}

.news-box {
  position: relative;
  padding: 12px 30px 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}
.news-box::after{
  content: "";
  display: inline-block;
  vertical-align: middle;
  color: #333;
  line-height: 1;
  width: 12px;
  height: 12px;
  border: 1px solid currentColor;
  border-left: 0;
  border-bottom: 0;
  box-sizing: border-box;
  position: absolute;
  top: 50%;
  right: 20px;
  transform: translateY(-50%) rotate(135deg);
}

.news-info {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.news-date {
  font-size: 1.4rem;
  color: #777;
  margin-bottom: 4px;
}

.news-title {
  font-size: 1.8rem;
}

.news-arrow {
  transition: transform 0.3s ease;
}

.news-item.open .news-arrow {
  transform: rotate(180deg);
}

.news-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.news-item.open .news-body {
  max-height: 1000px;
}

.news-item p{
  font-size: 1.6rem;
  font-weight: 300;
}
.news-item.open p{
  padding-top: 12px;
  margin-top: 12px;
  border-top: solid 1px #ddd;
  margin: 0 15px;
  padding-bottom: 20px;
  line-height: 1.6;
}

.section-news .bg-line{
  bottom: 0;
    left: 0;
    width: 100%;
    z-index: -1;
}

/* Footer */
.footer {
  background: rgba(255, 255, 255, .7);
  padding: 48px 0;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 10%;
}
.footer-info{width: 40%;}

.footer-logo {
  width: 70%;
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 16px;
}

.footer-logo-main {
  font-size: 36px;
  font-weight: 700;
}

.footer-logo-sub {
  font-size: 18px;
}

.footer-address {
  font-size: 14px;
  line-height: 1.6;
}

.footer-nav {
  width: 55%;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-nav .footer-links{
  width: 100%;
}
.footer-nav .footer-links ul{
  width: 100%;
  display: flex;
  flex-wrap: wrap;
}
.footer-nav .footer-links li{
  width: 48%;
  margin: 5px 0;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-link {
  position: relative;
  color: #1a1a1a;
  text-decoration: none;
  font-size: 14px;
  transition: opacity 0.3s;
}
.footer-link::after{
  content: "";
  display: inline-block;
  vertical-align: middle;
  color: #000;
  line-height: 1;
  width: 8px;
  height: 8px;
  border: 1px solid currentColor;
  border-left: 0;
  border-bottom: 0;
  box-sizing: border-box;
  position: absolute;
  top: 50%;
  right: -20px;
  transform: translateY(-50%) rotate(45deg);
}

.footer-link:hover {
  opacity: 0.7;
}

.btn-contact-footer {
  background: black;
  color: white;
  border: none;
  border-radius: 24px;
  padding: 12px 32px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background 0.3s;
  font-family: 'Noto Sans JP', sans-serif;
}

.btn-contact-footer:hover {
  background: rgba(0, 0, 0, 0.9);
}

.footer-copyright {
  text-align: center;
  font-size: 1rem;
  color: #fff;
  padding: 10px 0;
}


.section-intro {
  color: #fff;
  padding-top: 0;
  overflow: hidden;
}
.section-intro .flex{
  display: flex;
  justify-content: space-between;
}
.section-intro .flex .img{
  width: 38%;
}
.section-intro .flex .img img{
  border-radius: 10px;
}
.section-intro .flex .txt{
  width: 58%;
}
.section-intro .flex .txt p{
  font-size: 1.6rem;
  margin-bottom: 20px;
  line-height: 1.8;
}
.section-intro .flex .txt p:last-of-type{
  margin-bottom: 0;
}
.bottom-contents{
  overflow: hidden;
}
.bottom-contents .bg-line{
  width: 100%;
  bottom: 15%;
  z-index: -1;
}


/* Responsive */
@media (max-width: 1150px) {
  .fv-title{font-size: 4.2vw;}
  .fv-content span{font-size: 1.6vw;}
  .fv-content h2{font-size: 2.8vw;}
  .fv-text{font-size: 1.6vw;}

  .service-grid {
    display: grid;
    grid-template-columns: repeat(2, 2fr);
    gap: 15px;
  }
}
@media (max-width: 900px) {
  .nav-links {display: none;}

  .mobile-menu-btn {display: flex;}
  .nav-link{
    position: relative;
    display: block;
    width: 100%;
    padding-bottom: 10px;
    border-bottom: solid 1px #fff;
  }
  .nav-link::after{
    content: "";
    display: inline-block;
    vertical-align: middle;
    color: #fff;
    line-height: 1;
    width: 8px;
    height: 8px;
    border: 1px solid currentColor;
    border-left: 0;
    border-bottom: 0;
    box-sizing: border-box;
    position: absolute;
    top: 45%;
    right: 0;
    transform: translateY(-50%) rotate(45deg);
  }
  .nav-links.active {
    height: 100svh;
    display: flex;
    align-items: start;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    padding: 24px;
    gap: 16px;
  }
  .nav-container{padding: 0 20px;}
  .news-body p .sp-none{display: none;}
}
@media (max-width: 768px) {
  .container{padding: 0 15px;}
  section{padding: 15% 0;}
  .logo{width: 180px;}
  .fv{height: 85vh; overflow: hidden;}
  .fv-content{width: 90%; padding: 5%;}
  .fv-title {font-size: 12.2vw; margin-bottom: 10px; line-height: 1.2; margin-bottom: 8%;}
  .fv-title br{display: block;}
  .fv-content h2{font-size: 5.5vw; margin-bottom: 10px;}
  .fv-content span{font-size: 1.2rem;}
  .fv-text{font-size: 1.2rem;}
  .fv-text br{display: none;}
  .fv-image {height: 100%;}
  .fv-image .sp{display: block; height: 100%; object-fit: cover;}
  .fv-image .pc{display: none;}

  .section-header{flex-direction: column; align-items: flex-start; gap: 0;}
  .section-title {font-size: 14vw;}

  .about-grid {grid-template-columns: 1fr; gap: 60px;}
  .section-about .section-header{margin-bottom: 20px;}
  .quad-logo{width: 35%;}
  .about-heading{font-size: 10.5vw; margin-bottom: 10px;}
  .about-heading br{display: block;}
  .about-text br{display: none;}
  .about-text{font-size: 1.4rem;}
  .section-about .bg-line{top: 0;}

  .service-image{aspect-ratio: 2 / 1;}

  .company-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
  }

  .footer-nav {
    flex-direction: column;
    gap: 24px;
  }
  .news-box{padding: 12px 30px 12px 12px;}
  .news-box::after{width: 8px; height: 8px; right: 10px;}
  .news-title{font-size: 1.6rem;}
  .news-date{font-size: 1.2rem;}
  .news-item.open p{font-size: 1.4rem;}

  .footer-logo{width: 250px;}
  .footer-info{width: 100%; margin-bottom: 20px;}
  .section-about{overflow: hidden;}
  .section-news{overflow: hidden;}
  .section-about .bg-line{width: 250%;}
  .bottom-contents .bg-line{width: 250%; bottom: 20%;}
  .section-news .bg-line{width: 120%;}
  .company-row{grid-template-columns: 1fr; gap: 8px;}
  .company-value a{pointer-events: all;}
  .section-news{padding-bottom: 15%;}

  .section-intro .flex{flex-wrap: wrap;}
  .section-intro .flex .img{width:100%; margin-bottom: 20px;}
  .section-intro .flex .txt{width: 100%;}
  .section-intro .flex .txt p{font-size: 1.4rem;}
}
@media (max-width: 500px) {
  .footer-nav{width: 100%;}
  .footer-nav .footer-links ul{justify-content: space-between;}
  .footer-nav .footer-links li{width: 45%;}
}
@media (max-width: 350px) {
  .fv-text{font-size: 1.2rem;}
}