body {
    background-color: #F0FCFF;
    color: #000000;
    font-family: "Meiryo", "system-ui";
    line-height: 1
}

h1 {
    color: #18BDFF;
    border-bottom: 2px solid #18BDFF;
    padding-bottom: 5px;
}

a {
    color: #0000ff;
    font-weight: bold;
}

img {
    width: 400px;
    display: block;
    height: auto;
    margin-top: 25px;
    border-radius: 10px;
}

h4 {
    color: #007DC9;
    border-bottom: 2px solid #007DC9;
    padding-bottom: 5px;
}

hr {
    border: none;
    border-top: 3px solid #3375A6;
}

body {
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

.header {
  padding: 15px 20px;
  background-color: #E2F8FF;
  border-bottom: 1px solid #BEE8F5;
}

.in {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.in h1 {
  margin: 0;
  border-bottom: none; 
  padding-bottom: 0;
}

.nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 15px;
}

.nav a {
  text-decoration: none;
}

.nav a:hover {
  text-decoration: underline;
}

.con {
  max-width: 1000px;
  margin: 20px auto;
  padding: 0 10px;
  display: flex;
  gap: 25px;
}

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.con-box {
  background-color: #ffffff;
  border: 1px solid #BEE8F5;
  padding: 20px;
  border-radius: 5px;
  width: 95%;
}

.con-box h1 {
  margin-top: 0;
}

.con-box h4 {
  margin-top: 0px;
}

.bar {
  width: 280px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.widget {
  background-color: #ffffff;
  border: 1px solid #BEE8F5;
  padding: 15px;
  border-radius: 5px;
}

.widget h4 {
  margin-top: 0;
}

.profile {
  text-align: center;
}

.icon {
  width: 80px;
  height: 80px;
  background-color: #D6F3FF;
  border: 1px solid #007DC9;
  border-radius: 50%;
  margin: 15px auto 10px auto;
  line-height: 80px;
  font-size: 12px;
  color: #007DC9;
}

.name {
  margin: 0 0 10px 0;
  font-weight: bold;
}

.text {
  margin: 0;
  font-size: 13px;
  text-align: left;
}

.list {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
}

.futta {
  max-width: 1000px;
  margin: 30px auto 0 auto;
  padding: 0 10px 20px 10px;
  text-align: center;
  font-size: 12px;
}

.con-single {
  max-width: 1000px;
  width: 100%;
  margin: 20px auto;
  padding: 0 10px;
  box-sizing: border-box;
}

.main-single {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 20px
}

h1 a {
  color: #18BDFF !important;
  text-decoration: none !important;
}

.menu-btn {
  display: none;
}


@media (max-width: 768px) {

  .header {
    position: relative;
  }

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

  .menu-btn {
    display: flex !important;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
  }

  .menu-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: #007DC9;
    border-radius: 2px;transition: all 0.3s;
  }

  .menu-btn.active span:nth-child(1) {
    transform: translateY(8.5px) rotate(45deg);
  }

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

  .menu-btn.active span:nth-child(3) {
    transform: translateY(-8.5px) rotate(-45deg);
  }


  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: #F0FCFF;
    box-sizing: border-box;
    padding: 10px 20px;
    z-index: 100;
  }

  .nav a {
    display: block;
    padding: 12px 0;
    background-color: #F0FCFF;
    color: #007DC9;
    text-decoration: none;
    border: 1px solid #BEE8F5;
    border-radius: 5px;
    font-size: 15px;
    font-weight: bold;
    text-align: center;
    transition: background-color 0.2s;
  }

  .nav a:active {
    background-color: #D6F3FF;
  }

  .nav.active {
    display: block !important;
  }

  .nav ul {
    flex-direction: column;
    gap: 12px;
    text-align: center;
    background-color: #ffffff;
    padding: 15px;
    border: 1px solid #BEE8F5;
    border-radius: 5px;
    margin: 0;
  }

  .con {
    flex-direction: column;
  }

  .bar {
    width: 100%;
  }

}