body {
  font-family: "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  margin: 0;
  color: #333;
}

.header {
  border-bottom: 1px solid #ddd;
  padding: 15px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: bold;
  font-size: 18px;
}

.logo a {
  color: #000;
  text-decoration: none;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #003366;
  font-size: 14px;
}

.container {
  max-width: 900px;
  margin: 60px auto;
  padding: 0 20px;
}

h1 {
  color: #003366;
  margin-bottom: 30px;
}

h2 {
  color: #003366;
  margin-top: 40px;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  border-bottom: 1px solid #ddd;
  padding: 15px;
  vertical-align: top;
}

.company-table th {
  width: 200px;
  background: #f5f7f9;
  text-align: left;
}

.footer {
  border-top: 1px solid #ddd;
  text-align: center;
  padding: 20px;
  font-size: 12px;
  color: #666;
}