title{ color: white; }
p{ font-size: 40px; }
p{ color: cyan; }
h1{ color: white; }
h2{ font-size: 20px; }
h2{ color: white; }
h3{ font-size: 15px; }
h3{ color: white; }
h4{ font-size: 40px; }
h4{ color: red; }
h5{ font-size: 40px; }
h5{ color: cyan}

body {
  background-color: #002451; /* 暗めネオンブルー */
  color: #fff;
  font-family: 'Inter', sans-serif;
}

nav {
  width: 100%;
  background: linear-gradient(90deg, #003366 0%, #005577 100%);
  box-shadow: 0 4px 24px #00f7ff55, 0 1px 0 #00f7ff inset;
  padding: 0;
  margin-bottom: 2rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  gap: 3rem;
  height: 64px;
  align-items: center;
}

nav ul li a {
  color: #00f7ff;
  font-size: 1.2rem;
  font-weight: bold;
  text-shadow: 0 0 8px #00f7ff, 0 0 2px #fff;
  padding: 0.5em 1.2em;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  text-decoration: none;
  letter-spacing: 0.05em;
}

nav ul li a:hover,
nav ul li a:focus {
  background: #00f7ff;
  color: #002451;
  box-shadow: 0 0 16px #00f7ff, 0 0 4px #fff;
  text-decoration: none;
  outline: none;
}

.link {
  margin:2rem 0; 
  display: flex; 
  align-items: center; 
  justify-content: center;
  width: 100%;
}

.link-content {
  background: #002451; 
  border-radius: 24px; 
  box-shadow: 0 0 32px #00f7ff55, 0 0 0 8px #013060 inset; 
  padding: 2rem 2.5rem; 
  display: flex; 
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  flex-direction: column;
  height: 100%;
}

.link-small {
  width: unset;
  height: stretch;
}

.link-small > .link-content {
  max-width: 180px;
}

.link-image {
  background: #fff;
  border-radius: 16px; 
  border: 3px solid #00f7ff; 
  box-shadow: 0 0 0 4px #fff; 
  padding: 0; 
  display: flex; 
  align-items: stretch;
  /* height: 140px; */
}

.link-image > img {
  display:block; 
  width: 480px; 
  height: 100%; 
  object-fit: cover; 
  border-radius: 13px; 
  margin: 0;
  max-width: 100%;
}

.link-detail {
  display: flex; flex-direction: column; align-items: flex-start;
}

.link-title {
  color:#00f7ff; 
  font-size:2rem; 
  font-weight:bold; 
  text-shadow:0 0 12px #00f7ff;
  text-align: start;
  overflow-wrap: anywhere;
}

.link-button {
  margin-top:1.2rem; color:#000000; background:#00f7ff; border-radius:8px; padding:0.5em 1.5em; font-weight:bold; text-decoration:none; font-size:1.1rem; box-shadow:0 0 12px #00f7ff;
}

.small-links {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 1.5rem;
  max-width: 900px;
  flex-wrap: wrap;
  margin: 0 auto;
}