body {
  margin: 0;
  font-family: 'Helvetica Neue', sans-serif;
  color: #333;
  background-color: #fff;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #333; /* フッターと同じ黒系 */
  color: white;
  padding: 20px 40px;
  font-size: 1.1rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1); /* 少し立体感を追加 */
}

.header-left {
  display: flex;
  align-items: center;
  font-weight: bold;
  font-size: 1.3rem;

}
.logo {
  height: 2.5rem; /* ← .header-left の font-size に合わせる */
  margin-right: 8px;
  vertical-align: middle;
}

.header-nav a {
  color: white;
  text-decoration: none;
  margin-left: 30px;
  font-weight: bold;
  transition: color 0.3s ease;
}

.header-left a {
  color: white !important;
  text-decoration: none;
  font-weight: bold;
}

.header-left a:visited {
  color: white;
}
.header-left a:hover {
  color: #bbb; /* ナビゲーションと同じホバー効果 */
}

.header-nav a:hover {
  color: #bbb; /* フッターの雰囲気に合わせた控えめな変化 */
}

/*特許一覧*/
.patents {
  padding: 60px 40px;
  background-color: #fff;
}

.patents h1 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 40px;
  overflow-x: auto;
}

.patents table {
  width: 100%;
  margin: 0 auto;
  border-collapse: collapse;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}


.patents th, .patents td {
  padding: 12px 20px;
  border-bottom: 1px solid #ccc;
  text-align: center;
}

.patents th {
  background-color: #0078D4;
  color: white;
  font-weight: bold;
}

.patents a {
  color: #0078D4;
  text-decoration: none;
  font-weight: bold;
}

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

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-scroll table {
  min-width: 600px; /* 必要に応じて適切な幅を設定 */
}

/*技術一覧*/
.technology-list {
  background-color: #fff;
  color: #333;
  padding: 60px 40px;
}

.technology-list h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 30px;
  border-bottom: 2px solid #ddd;
  padding-bottom: 10px;
}

.technology-list ul {
  list-style: none;
  padding: 0;
  max-width: 1000px;
  margin: 0 auto;
}

.technology-list li {
  margin-bottom: 15px;
  font-size: 1.1rem;
}

.technology-list a {
  color: #0078D4;
  text-decoration: none;
  font-weight: bold;
}

.technology-list a:hover {
  text-decoration: underline;
}

.map {
  width: 100%;
  display: flex;
  flex-direction: column; /* ← これがポイント！縦並びにする */
  align-items: center;     /* ← 横方向の中央揃え */
  padding: 60px 20px;
}

.map img {
  width: 80%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.map h1 {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 30px;
  color: #333;
}

@media screen and (max-width: 768px) {
  .map img {
    width: 90%;
  }
}

footer {
  background-color: #333;
  color: white;
  text-align: center;
  padding: 20px;
}
.footer-extended {
  background-color: #333;
  color: white;
  padding: 40px 20px 20px;
  font-size: 0.95rem;
}

.footer-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

.footer-logo img {
  width: 100px;
  margin-bottom: 10px;
}

.footer-logo p {
  font-weight: bold;
  margin: 0;
}

.footer-info p,
.footer-links a {
  margin: 6px 0;
}

.footer-links {
  display: flex;
  flex-direction: column;
}

.footer-links a {
  color: white;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #bbb;
}