html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}


body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, figure {
  margin: 0;
  padding: 0;
}

body {
  font-family:
    "Montserrat",
    "Yu Gothic Medium",
    "YuGothic",
    "Hiragino Kaku Gothic ProN",
    "Meiryo",
    sans-serif;
    overflow-x: hidden;
}

.header {
  height: 100px;
  background-color: #191e5a;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 70px;
  position: relative;
}
@media (max-width: 768px) {
  .header {
    padding: 0 30px;
  }
}

.header img {
  width: 100px;
}

.hamburger {
  display: none;
  width: 30px;
  height: 22px;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  z-index: 1001;
}

.hamburger span {
  display: block;
  height: 3px;
  background: #fff;
  border-radius: 2px;
  transition: 0.3s;
}

/* ハンバーガーがアクティブ時（バツに変形） */
.hamburger.active span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
  background: #333;
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
  background: #333;
}

nav ul {
  display: flex;
  gap: 20px;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 40px;
}

nav a {
  text-decoration: none;
  color: #fff;
  cursor: pointer;
  letter-spacing: 0.1rem;
}

/* モバイル表示時 */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  nav {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100vh;
    width: 100%;
    background-color: #fff;
    transform: translateX(100vw);
    transition: none;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    z-index: 1000;
    padding-top: 200px;
      /* 上に余白をとる */
  }

  nav.active {
    transform: translateX(0);
    transition: transform 0.4s ease;
  }

  nav ul {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .no-scroll {
    overflow: hidden;
    height: 100vh;
    /* スマホの慣性スクロールも防ぐ */
  }

  nav a {
    color: #191e5a;
  }
}

#top {
  padding: 200px 0;
  text-align: center;
}
@media (max-width: 768px) {
  #top {
    padding: 100px 10px;
  }
}

#top h1 {
  font-weight: 580;
  letter-spacing: 0.2rem;
  padding-bottom: 60px;
}
@media (max-width: 768px) {
  #top h1 {
    font-size: 18px;
  }
}

#top p {
  letter-spacing: 0.2rem;
  padding-bottom: 80px;
}
@media (max-width: 768px) {
  #top p {
    letter-spacing: 0.07rem;
    font-size: 14px;
  }
}

#top img {
  width: 70%;
}
@media (max-width: 768px) {
  #top img {
    width: 90%;
  }
}

#service h1 {
  color: #191e5a;
  font-weight: 530;
  letter-spacing: 0.2rem;
  font-size: 23px;
  border-bottom: 1px solid #191e5a;
  display: inline-block;
  padding-bottom: 5px;
  margin-bottom: 50px;
}
@media (max-width: 768px) {
  #service h1 {
    font-size: 18px;
  }
}

.center {
  text-align: center;
}

.service1 {
  width: 700px;
}
@media (max-width: 768px) {
  .service1 {
    width: 90%;
  }
}

.flex {
  display: flex;
  padding: 50px 0;
  gap: 100px;
}
@media (max-width: 1400px) {
  .flex {
    display: block;
  }
}

.img1 {
  background-color: #ccc;
  width: 600px;
  height: 350px;
}

.content h2 {
  font-size: 13px;
  font-weight: normal;
  letter-spacing: 0.1rem;
  color: #191e5a;
  padding-top: 120px;
}
@media (max-width: 1400px) {
  .content h2 {
    padding-top: 50px;
  }
}

.content h3 {
  font-size: 25px;
  color: #191e5a;
  font-weight: 550;
  letter-spacing: 0.25rem;
}

.content {
  width: 550px;
}
@media (max-width: 1400px) {
  .content {
    width: 80%;
    margin: 0 auto;
  }
}

.content p {
  margin-top: 30px;
  letter-spacing: 0.3rem;
}
@media (max-width: 1400px) {
  .content p {
    letter-spacing: 0.1rem;
  }
}

.flex2 {
  display: flex;
  padding: 50px 0;
  gap: 100px;
  justify-content: flex-end;
}
@media (max-width: 1400px) {
  .flex2 {
    flex-direction: column-reverse;
    gap: 0;
  }
}
@media (max-width: 1400px) {
  .right {
    text-align: right;
  }
}


.content2 h2 {
  font-size: 13px;
  font-weight: normal;
  letter-spacing: 0.1rem;
  color: #191e5a;
  padding-top: 120px;
}
@media (max-width: 1400px) {
  .content2 h2 {
    padding-top: 50px;
  }
}

.content2 h3 {
  font-size: 25px;
  color: #191e5a;
  font-weight: 550;
  letter-spacing: 0.25rem;
}

.content2 {
  width: 550px;
}
@media (max-width: 1400px) {
  .content2 {
    width: 80%;
    margin: 0 auto;
  }
}

.content2 p {
  margin-top: 30px;
  letter-spacing: 0.3rem;
}

.line-container {
  display: flex;
  overflow: hidden;
}

.line {
  display: flex;
  animation: scrollLine 30s linear infinite;
}

.line img {
  object-fit: cover;
  height: 40px;
  margin: 100px 0;
}

@keyframes scrollLine {
  0% {
    transform: translateX(0%);
  }

  100% {
    transform: translateX(-100%);
  }
}

.company-info {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 10px 40px;
  max-width: 700px;
  margin: 0 auto;
  color: white;
}
@media (max-width: 768px) {
  .company-info {
    max-width: 80%;
    gap: 10px 10px;
    grid-template-columns: 90px 1fr;
  }
}


.label {
  text-align: left;
  white-space: nowrap;
}
@media (max-width: 768px) {
  .label {
    font-size: 14px;
  }
}

.value {
  white-space: pre-wrap;
  width: 700px;
  letter-spacing: 0.1rem;
}
@media (max-width: 768px) {
  .value {
    width: 100%;
    font-size: 14px;
  }
}

#company {
  width: 100%;
  background-color: #191e5a;
  padding: 100px 0;
}

#company h1 {
  color: white;
  text-align: center;
  padding-bottom: 50px;
  font-weight: 550;
  letter-spacing: 0.1rem;
}

.footer-logo {
  width: 200px;
  margin: 50px 0 50px 100px;
}
@media (max-width: 768px) {
  .footer-logo {
    width: 100px;
    margin: 50px 0 0px 30px;
  }
}

#footer p {
  color:#191e5a;
  font-size: 14px;
  letter-spacing: 0.2rem;
}
@media (max-width: 768px) {
  #footer p {
    letter-spacing: 0.1rem;
  }
}


.info {
  margin-left: 100px;
}
@media (max-width: 768px) {
  .info {
    margin-left: 30px;
  }
}

#footer a {
  display: block;
  text-decoration: none;
  font-size: 13px;
  text-align: right;
  margin-right: 80px;
  color:#191e5a
}
@media (max-width: 768px) {
  #footer a {
    margin-right: 30px;
  }
}

.year {
  margin-left: 100px;
  font-size: 16px;
}
@media (max-width: 768px) {
  .year {
    margin-left: 30px;
    margin-top: 20px;
  }
}

#footer {
  padding: 50px 0 100px 0;
}
@media (max-width: 768px) {
  #footer {
    padding: 50px 0 50px 0;
  }
}

.top-link {
  width: 30px;
}
@media (max-width: 768px) {
  .top-link {
    position: relative;
    bottom: 40px;
  }
}
@media (max-width: 768px) {
  .privacy {
    margin-top: 80px;
  }
}

.policy {
  padding: 100px 200px;
}
@media (max-width: 768px) {
  .policy {
    padding: 20px 0;
  }
}

#policy {
  padding: 50px;
}

#policy h1 {
  text-align: center;
  color: #191e5a;
}

.security {
  padding: 100px 200px;
}

@media (max-width: 768px) {
  .security {
    padding: 20px 0;
  }
}

#security {
  padding: 50px;
}

#security h1 {
  text-align: center;
  color: #191e5a;
}

.back {
  text-align: center;
}

.back a {
  text-decoration: none;
  color: #191e5a;
  letter-spacing: 0.1rem;
  border-bottom: 1px solid #191e5a;
  display: inline-block;
  padding-bottom: 5px;
}