@charset "UTF-8";
/* Variables */
/* Header */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: white;
  color: black;
  padding: 15px 0;
  z-index: 1000;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-title {
  font-size: 1.8rem;
  font-weight: bold;
}
.header-title img {
  width: 150px; /* 適切な幅に調整 */
  height: auto; /* アスペクト比を維持 */
}

/* PC Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: 15px;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 15px;
}

.nav-list a {
  font-size: 1rem;
  color: #333;
  text-decoration: none;
  padding: 0 10px;
  font-weight: bold;
}

/* Mobile Navigation */
.nav-sp {
  display: none;
  flex-direction: column;
  background-color: white;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  justify-content: center;
  align-items: center;
  z-index: 999;
  overflow: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  opacity: 0;
  visibility: hidden;
}

.nav-sp.nav-open {
  display: flex;
  opacity: 1;
  visibility: visible;
}

.nav-sp .nav-list {
  flex-direction: column;
  gap: 20px;
}

.nav-sp .nav-list a {
  font-size: 1.5rem;
  color: #333;
  text-decoration: none;
  padding: 10px 20px;
  font-weight: bold;
}

.menu-toggle {
  position: absolute;
  top: 15px;
  right: 15px;
  z-index: 1001;
}

.menu-toggle .hamburger,
.menu-toggle .close-menu {
  font-size: 1.5rem;
  cursor: pointer;
  color: black;
}

.menu-toggle .hidden {
  display: none;
}

.nav-sp.nav-open ~ .menu-toggle .hamburger {
  display: none;
}

.nav-sp.nav-open ~ .menu-toggle .close-menu {
  display: block;
}

@media (max-width: 980px) {
  .nav {
    display: none;
  }
}
@media (min-width: 979px) {
  .menu-toggle {
    display: none;
  }
  .nav-sp {
    display: none;
  }
}
/* Hero Section */
.hero {
  position: relative;
  text-align: center;
  background-image: url("../images/top.jpg");
  background-size: cover; /* 画像をカバーサイズに調整 */
  background-position: center; /* 画像を中央に配置 */
  background-repeat: no-repeat; /* 画像の繰り返しを防止 */
  padding: 50px 20px;
  margin-top: 80px; /* Adjust for fixed header */
  height: 500px; /* 高さを500pxに固定 */
  color: white;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.2); /* 背景色に透明度を追加 */
  z-index: 1;
}

.hero-title, .hero-description {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 2.5rem;
  margin-bottom: 20px;
}
@media screen and (max-width: 768px) {
  .hero-title {
    font-size: 20px;
  }
}

.hero-description {
  font-size: 1.2rem;
  margin-bottom: 30px;
  padding: 10px;
  border-radius: 10px;
  display: inline-block;
}

/* Features Section */
.features {
  padding: 0 20px;
  background-color: #f8f9fa;
}

.features-list {
  display: flex;
  flex-direction: column; /* 縦に並べる */
  gap: 30px;
  align-items: center; /* 中央揃え */
}

.feature-item h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: black;
  font-weight: bold;
}

.feature-item p {
  font-size: 1rem;
  color: #333;
  line-height: 1.6;
}

.company-table {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 10px 0;
  padding: 10px;
  border: 1px solid #ddd;
}

.table-item {
  display: flex;
  justify-content: space-between;
  padding: 10px;
  border-bottom: 1px solid #ddd;
}

.table-item:last-child {
  border-bottom: none;
}

.table-title {
  width: 120px;
}

.table-content {
  flex: 1;
}

/* Company Info Section */
.company-info {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 10px 0;
}

.info-item {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
}

.info-title {
  width: 100px;
}

.info-content {
  flex: 1;
}

/* Publications Section */
.publications-list {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: start;
}

.publication-item {
  flex: 1 1 calc(33.333% - 20px);
  max-width: calc(33.333% - 20px);
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.publication-item img {
  max-width: 100%;
  height: 200px;
  border-radius: 5px;
  margin-bottom: 10px;
}

.publication-item p {
  font-size: 1rem;
  color: #333;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .publication-item {
    flex: 1 1 calc(50% - 20px);
    max-width: calc(50% - 20px);
  }
}
@media (max-width: 480px) {
  .publication-item {
    flex: 1 1 100%;
    max-width: 100%;
  }
}
.office-images {
  display: flex;
  flex-wrap: wrap; /* 追加: レスポンシブ対応のために折り返しを許可 */
  justify-content: start;
  gap: 10px;
  margin: 10px 0;
}

.office-images img {
  width: 100%;
  max-width: 290px; /* 画像の最大幅を設定 */
  height: auto;
  border-radius: 5px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
  .office-images img {
    max-width: 45%; /* 画面幅が768px以下の場合、画像の最大幅を45%に設定 */
  }
}
@media (max-width: 480px) {
  .office-images img {
    max-width: 100%; /* 画面幅が480px以下の場合、画像の最大幅を100%に設定 */
  }
}
/* Responsive iframe */
.responsive-iframe {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 アスペクト比 */
  height: 0;
  overflow: hidden;
}

.responsive-iframe iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.footer {
  background-color: white;
  text-align: center;
  padding: 15px 0;
  margin-top: 50px;
}

.mt-10 {
  margin-top: 10px;
}

.mt-20 {
  margin-top: 20px;
}

.mt-30 {
  margin-top: 30px;
}

.mt-50 {
  margin-top: 30px;
}

/* Variables */
/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Arial", sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 15px;
}

.bold {
  font-weight: bold;
}

section {
  margin-bottom: 70px;
}
section .section-title {
  font-size: 20px;
  text-align: left;
  margin-bottom: 20px;
  color: #333;
}
section .box {
  width: 100%; /* 幅を100%に設定 */
  max-width: 1000px; /* 最大幅を設定 */
  background: white;
  padding: 30px;
  border-radius: 10px;
  border: solid 0.5px black;
  text-align: left;
}
section .box .section-sub-title {
  text-align: center;
  padding: 20px;
}
section .content-title {
  font-weight: bold;
  padding: 2px;
  margin: 3px;
  background-color: rgb(230, 230, 230);
}
section .content-box {
  width: 100%; /* 幅を100%に設定 */
  max-width: 1000px; /* 最大幅を設定 */
  background: white;
  border-radius: 10px;
  border: solid 0.5px black;
  text-align: left;
  padding: 10px;
}/*# sourceMappingURL=styles.css.map */