@charset "UTF-8";
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Hiragino Kaku Gothic ProN", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.8;
  color: #333;
  background-color: #f8f9fa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background-color: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header h1 {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 1.5rem;
  font-weight: 600;
  background: linear-gradient(135deg, #095c6d 0%, #0B7F96 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
header h1 img {
  display: block;
  height: auto;
}
@media (max-width: 768px) {
  header h1 {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    font-size: 1.2rem;
  }
  header h1 img {
    height: 40px;
    width: auto;
  }
}
@media (max-width: 768px) {
  header {
    padding: 0.75rem 0;
  }
}
header .hamburger {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 24px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 101;
}
header .hamburger span {
  display: block;
  width: 100%;
  height: 3px;
  background: linear-gradient(135deg, #095c6d 0%, #0B7F96 100%);
  transition: all 0.3s;
  border-radius: 2px;
}
header .hamburger.active span {
  position: absolute;
  top: 50%;
  left: 0;
  margin-top: -1.5px;
  background: #fff;
}
header .hamburger.active span:nth-child(1) {
  transform: rotate(45deg);
}
header .hamburger.active span:nth-child(2) {
  opacity: 0;
}
header .hamburger.active span:nth-child(3) {
  transform: rotate(-45deg);
}
header .nav-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100vh;
  background-color: rgb(11, 127, 150);
  list-style: none;
  margin: 0;
  padding: 6rem 4rem 4rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
  align-content: start;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 100;
  overflow-y: auto;
}
header .nav-menu.active {
  opacity: 1;
  visibility: visible;
}
header .nav-menu > li > a {
  text-decoration: none;
  color: #fff;
  font-weight: 500;
  font-size: 1.3rem;
  transition: color 0.3s;
  position: relative;
  display: block;
  padding: 0.5rem 0;
}
header .nav-menu > li > a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, #095c6d 0%, #0B7F96 100%);
  transition: width 0.3s;
}
header .nav-menu > li > a:hover {
  color: #0B7F96;
}
header .nav-menu > li > a:hover::after {
  width: 100%;
}
header .nav-menu .nav-submenu .nav-title {
  display: block;
  color: #fff;
  font-weight: 600;
  font-size: 1.3rem;
  padding: 0.5rem 0;
  margin-bottom: 0.5rem;
  border-bottom: 2px solid rgba(255, 255, 255, 0.3);
}
header .nav-menu .nav-submenu ul {
  list-style: none;
  padding-left: 1rem;
  margin: 0;
}
header .nav-menu .nav-submenu ul li {
  margin: 0;
}
header .nav-menu .nav-submenu ul li a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 400;
  font-size: 1.1rem;
  display: block;
  padding: 0.5rem 0;
  transition: color 0.3s, padding-left 0.3s;
  position: relative;
}
header .nav-menu .nav-submenu ul li a::before {
  content: "・";
  margin-right: 0.3rem;
}
header .nav-menu .nav-submenu ul li a:hover {
  color: #fff;
  padding-left: 0.5rem;
}
@media (max-width: 768px) {
  header .nav-menu {
    grid-template-columns: 1fr;
    padding: 5rem 2rem 2rem;
    gap: 2rem;
  }
}

main {
  padding: 0;
}

section {
  padding: 4rem 0;
}
section h2 {
  font-size: 2.2rem;
  color: #333;
  margin-bottom: 3rem;
  padding-bottom: 1rem;
  border-bottom: 3px solid #e9ecef;
  position: relative;
  font-weight: 700;
  letter-spacing: -0.02em;
}
section h2::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, #0B7F96, #095c6d);
}

.section_hero {
  background-color: #f8f9fa;
  background-image: url("../img/img_kamuimisaki.jpg");
  background-size: cover;
  background-position: bottom;
  background-repeat: no-repeat;
  position: relative;
  padding: 6rem 0;
}
.section_hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.5);
}
.section_hero .container {
  position: relative;
  z-index: 1;
}
.section_hero h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.section_hero p {
  font-size: 1.05rem;
  margin-bottom: 1rem;
  line-height: 1.9;
  color: #333;
}
.section_hero p:last-of-type {
  font-size: 0.9rem;
  color: #666;
  margin-top: 1.5rem;
}
@media (max-width: 768px) {
  .section_hero {
    padding: 3rem 0;
  }
}

.section_features {
  background: linear-gradient(135deg, #095c6d 0%, #0B7F96 100%);
}
.section_features h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.3);
}
.section_features h2::after {
  background: linear-gradient(90deg, #fff, rgba(255, 255, 255, 0.5));
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-item {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s, box-shadow 0.3s;
  overflow: hidden;
}
.feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}
.feature-item a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  padding: 2rem;
  text-align: center;
  text-decoration: none;
  color: #0B7F96;
  font-weight: 600;
  font-size: 1.1rem;
  transition: gap 0.3s, color 0.3s;
}
.feature-item a::after {
  content: "";
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.3s;
}
.feature-item a:hover {
  gap: 1rem;
  color: #095c6d;
}
.feature-item a:hover::after {
  transform: rotate(45deg) translateX(3px);
}
.feature-item h3 {
  margin-bottom: 0.5rem;
  font-size: 1.3rem;
}

.cta {
  background-color: #0B7F96;
  color: #fff;
  text-align: center;
}
.cta h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.cta p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}
.cta .btn {
  background-color: #fff;
  color: #0B7F96;
}
.cta .btn:hover {
  background-color: #f8f9fa;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  background-color: #0B7F96;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: 600;
  transition: background-color 0.3s;
}
.btn:hover {
  background-color: #095c6d;
}

.section_logo, .section_info {
  background-color: #fff;
}
.section_logo ul, .section_info ul {
  list-style: none;
  padding-left: 0;
}
.section_logo ul li, .section_info ul li {
  margin-bottom: 1rem;
}
.section_logo ul li a, .section_info ul li a {
  display: inline-flex;
  align-items: center;
  color: #0B7F96;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.05rem;
  padding: 0.5rem 0;
  transition: all 0.3s;
}
.section_logo ul li a::before, .section_info ul li a::before {
  content: "▶";
  margin-right: 0.5rem;
  font-size: 0.8rem;
  transition: transform 0.3s;
}
.section_logo ul li a:hover, .section_info ul li a:hover {
  color: #095c6d;
  padding-left: 0.5rem;
}
.section_logo ul li a:hover::before, .section_info ul li a:hover::before {
  transform: translateX(3px);
}

.section_topics {
  background-color: #fff;
  background-image: url("../img/img_001304774.jpeg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  padding: 6rem 0;
}
.section_topics::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.5);
}
.section_topics .container {
  position: relative;
  z-index: 1;
}
@media (max-width: 768px) {
  .section_topics {
    padding: 3rem 0;
  }
}
.section_topics ul {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  list-style: none;
}
.section_topics ul li {
  background-color: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}
.section_topics ul li:hover {
  transform: translateY(-8px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}
.section_topics ul li a {
  display: block;
  text-decoration: none;
  color: #333;
}
.section_topics ul li a img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s;
}
.section_topics ul li a:hover img {
  transform: scale(1.05);
}
.section_topics ul li a p {
  padding: 1.25rem;
  text-align: center;
  font-weight: 500;
  font-size: 1rem;
}
@media (max-width: 768px) {
  .section_topics ul {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

footer nav {
  background: linear-gradient(135deg, #095c6d 0%, #0B7F96 100%);
  padding: 2rem 0;
}
footer nav ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  list-style: none;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
footer nav ul li {
  text-align: left;
}
footer nav ul li a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff;
  text-decoration: none;
  padding: 0.5rem 0;
  transition: all 0.3s;
}
footer nav ul li a::before {
  content: "▶";
  font-size: 0.8rem;
  transition: transform 0.3s;
}
footer nav ul li a:hover {
  padding-left: 0.5rem;
}
footer nav ul li a:hover::before {
  transform: translateX(3px);
}
footer > div {
  background-color: #F4F4F4;
  padding: 2rem 0;
  text-align: center;
}
footer .footer_logo {
  margin-bottom: 1rem;
}
footer .footer_logo img {
  max-width: 200px;
  height: auto;
}

.page-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #095c6d 0%, #0B7F96 100%);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
  z-index: 1000;
}
.page-top.show {
  opacity: 1;
  visibility: visible;
}
.page-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}
.page-top span {
  font-size: 1.2rem;
  font-weight: bold;
}/*# sourceMappingURL=style.css.map */