body {
  margin: 0;
  font-family:
    "Hiragino Mincho ProN",
    "游明朝",
    "Yu Mincho",
    "MS P明朝",
    serif;
  line-height: 1.7;
  font-size: 20px;
}

/* =====================
   ヘッダー
===================== */
.header {
  background-color: #e6f2f7;
  color: #000;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 30px 30px; /* ← 上下を太く */
}

/* 会社名（ロゴ） */
/* ロゴ全体 */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.15;
}

.logo-sub {
  font-size: 18px;   /* 少しだけアップ */
  letter-spacing: 1.5px;
}

/* 下の大きい文字（メイン） */
.logo-main {
  font-size: 52px;   /* 大胆にアップ */
  display: block;
  font-weight: 800;
}

.logo img {
  height: 90px;
  width: auto;
}

.hero {
  background-color: #3939db;
  padding: 40px 20px;
  text-align: center;
  color: #fff;
}

.hero-copy {
  margin: 0;
  line-height: 1.3;
}

.hero-copy-sub {
  font-size: 1.4rem;   /* 約24px */
  font-weight: 500;
  opacity: 0.9;
}

.hero-copy-main {
  font-size: 2.8rem;   /* 約48px */
  font-weight: 800;
  display: inline-block;
}

.strength,
.service {
  padding: 30px 20px;
}

.strength-list {
  list-style: none;
  padding: 0;
}

.strength-list li {
  margin-bottom: 10px;
}

.service-box {
  margin-bottom: 20px;
  padding: 15px;
  border: 1px solid #ccc;
}

.footer {
  background-color: #f0f0f0;
  text-align: center;
  padding: 10px;
  font-size: 12px;
}

/* ナビゲーション */
.nav {
  background-color: #004b6b; /* 濃紺 */
  padding: 10px 16px;
  border-radius: 6px;
}

.nav a {
  color: #ffffff;
  text-decoration: none;
  margin-left: 16px;
  font-size: 15px;
  font-weight: 500;
}

.global-nav {
  display: flex;
  background-color: #004b6b;   /* 濃い色で視認性UP */
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.global-nav a {
  flex: 1;
  text-align: center;
  padding: 14px 0;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  border-right: 1px solid rgba(255,255,255,0.25);
}

.global-nav a:last-child {
  border-right: none;
}

.global-nav a:hover {
  background-color: rgba(255,255,255,0.15);
}

.global-nav a.active {
  background-color: #ffffff;
  color: #004b6b;
  font-weight: 700;
}

.nav a:hover {
  opacity: 0.8;
  text-decoration: none;
}

.service-list {
  margin: 0;
  padding-left: 1.2em;
}

.service-list li {
  margin-bottom: 6px;
}

.company table {
  width: 100%;
  border-collapse: collapse; /* 線をきれいに */
}

.company tr {
  border-bottom: 1px solid #ddd;
}

/* 最後の行の下線は消す（任意） */
.company tr:last-child {
  border-bottom: none;
}

.company th,
.company td {
  padding: 14px 18px;
  border-bottom: 1px solid #ddd; /* tr間の線 */
  vertical-align: top;
}

/* th と td の見た目 */
.company th {
  width: 180px;
  background-color: #f3f6f8;
  font-weight: 700;
  text-align: left;
}

/* 偶数行だけ薄く色をつける（PC） */
.company tr:nth-child(even) {
  background-color: #fafafa;
}

/* =====================
   スマホ対応
===================== */
@media screen and (max-width: 768px) {

  /* ヘッダー */
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 15px;
  }

  .logo {
    font-size: 20px;
  }

  .logo-sub {
    font-size: 12px;
  }

  .logo-main {
    font-size: 26px;
  }

  .logo img {
    height: 44px;
  }

  .global-nav {
    flex-direction: row;   /* 横並び維持 */
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }

  .global-nav a {
    font-size: 13px;
    padding: 12px 0;
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.25);
  }

  .global-nav a:last-child {
    border-bottom: none;
  }

  .nav {
    width: 100%;
    margin-top: 15px;
    background-color: #004b6b;
  }

  .nav a {
    display: block;
    margin: 8px 0;
    font-size: 16px;
  }

  /* メインビジュアル */
  .hero {
    padding: 20px 10px;
  }

  .hero h2 {
    font-size: 20px;
  }
  
  .hero-copy-sub {
    font-size: 1.2rem; /* 約21px */
  }

  .hero-copy-main {
    font-size: 2rem;   /* 約32px */
  }

  .service-list {
  margin: 0;
  padding-left: 1.2em;
 }

  .service-list li {
    margin-bottom: 6px;
  }

  .company table,
  .company tbody,
  .company tr {
    display: block;
    width: 100%;
  }

  .company tr {
    margin-bottom: 16px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 0 1px #e0e0e0;
  }

  /* 縞模様を無効化 */
  .company tr:nth-child(even) {
    background: #fff;
  }

  .company th {
    display: block;
    width: 100%;
    background-color: #004b6b;
    color: #fff;
    padding: 10px 14px;
    border-bottom: none;
  }

  .company td {
    display: block;
    padding: 12px 14px;
    border-bottom: none;
  }

  /* セクション共通 */
  .strength,
  .service,
  .company,
  .contact {
    padding: 20px 10px;
  }

}