/* ===============================
   基本設定
================================ */

*,
*::before,
*::after{
  box-sizing:border-box;
}

html{
  margin:0;
  padding:0;
}

body{
  margin:0;
  padding:0;
  font-family:
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    Meiryo,
    sans-serif;
  font-size:16px;
  line-height:1.7;
  color:#24313d;
  background:#fff;
}

img{
  max-width:100%;
  height:auto;
  display:block;
}

a{
  color:inherit;
  text-decoration:none;
}

ul,
ol{
  margin:0;
  padding:0;
}

li{
  list-style:none;
}

p,
h1,
h2,
h3,
h4,
h5,
h6{
  margin:0;
}

/* ===============================
   共通レイアウト
================================ */

.container,
.header-inner{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

/* ===============================
   ヘッダー
================================ */

.site-header{
  background:#143f69;
  border-bottom:4px solid #d94b3d;
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding-top:12px;
  padding-bottom:12px;
}

.site-branding{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  flex-shrink:0;
}

.site-title-en{
  margin:0 0 4px 0;
  font-size:12px;
  line-height:1.2;
  letter-spacing:0.12em;
  color:#d9e6f2;
}

.site-title-ja{
  display:flex;
  align-items:flex-end;
  gap:8px;
  color:#fff;
}

.site-corp{
  font-size:12px;
  line-height:1.2;
  color:#eef4f9;
}

.site-name{
  font-size:22px;
  line-height:1.2;
  font-weight:700;
  color:#fff;
}

/* ===============================
   グローバルナビ
================================ */

.global-nav ul{
  display:flex;
  align-items:center;
  gap:22px;
  flex-wrap:wrap;
}

.global-nav a{
  display:inline-block;
  padding:6px 0;
  font-size:14px;
  line-height:1.4;
  font-weight:700;
  color:#fff;
}

.global-nav a:hover{
  opacity:0.82;
}

.global-nav a.is-current{
  border-bottom:2px solid #fff;
  padding-bottom:8px;
}

/* ===============================
   HERO
================================ */

.hero{
  position:relative;
  min-height:520px;
  background-image:url("../images/tokyo3.png");
  background-size:cover;
  background-position:center center;
  background-repeat:no-repeat;
  overflow:hidden;
}

.hero-overlay{
  min-height:520px;
  background:
    linear-gradient(
      90deg,
      rgba(20,63,105,0.72) 0%,
      rgba(20,63,105,0.56) 34%,
      rgba(20,63,105,0.30) 62%,
      rgba(20,63,105,0.18) 100%
    );
}

.hero-inner{
  max-width:1180px;
  margin:0 auto;
  padding:180px 20px 80px 40px;
}

.hero-copy{
  max-width:640px;
  color:#fff;
}

.hero-copy h1{
  font-size:46px;
  line-height:1.4;
  font-weight:700;
  color:#fff;
}

.hero-text{
  margin-top:20px;
  max-width:560px;
  font-size:15px;
  line-height:2;
  color:rgba(255,255,255,0.96);
}

.hero-buttons{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:170px;
  padding:13px 22px;
  border-radius:8px;
  font-size:14px;
  line-height:1.4;
  font-weight:700;
  transition:opacity 0.2s ease, transform 0.2s ease;
}

.btn:hover{
  opacity:0.92;
  transform:translateY(-1px);
}

.btn-primary{
  background:#d94b3d;
  color:#fff;
}

.btn-secondary{
  background:transparent;
  color:#fff;
  border:1px solid rgba(255,255,255,0.7);
}

.hero-credit{
  position:absolute;
  right:18px;
  bottom:12px;
  font-size:11px;
  line-height:1.4;
  color:rgba(255,255,255,0.88);
}

/* ===============================
   セクション共通
================================ */

.section-heading{
  margin-bottom:22px;
}

.section-heading h2{
  position:relative;
  padding-left:18px;
  font-size:22px;
  line-height:1.4;
  font-weight:700;
  color:#143f69;
}

.section-heading h2::before{
  content:"";
  position:absolute;
  left:0;
  top:2px;
  width:6px;
  height:32px;
  border-radius:3px;
  background:#143f69;
}

.section-heading-flex{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}

.text-link{
  font-size:14px;
  font-weight:700;
  color:#143f69;
}

/* ===============================
   主要メニュー
================================ */

.quick-links{
  background:#f5f7fa;
  padding:40px 0 36px;
}

.quick-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:18px;
}

.quick-card{
  display:block;
  background:#fff;
  border:1px solid #d9e3ec;
  border-radius:14px;
  padding:22px 20px;
  box-shadow:0 4px 14px rgba(20,63,105,0.05);
}

.quick-card h3{
  margin-bottom:12px;
  font-size:18px;
  line-height:1.5;
  color:#143f69;
}

.quick-card p{
  font-size:14px;
  line-height:1.9;
  color:#4a5968;
}

/* ===============================
   新着情報
================================ */

.news-section{
  padding:36px 0 28px;
  background:#fff;
}

.news-list{
  border-top:1px solid #dfe6ec;
  background:#fff;
}

.news-item{
  display:flex;
  gap:22px;
  padding:16px 0;
  border-bottom:1px solid #dfe6ec;
}

.news-date{
  flex:0 0 110px;
  font-size:14px;
  font-weight:700;
  color:#1e4f7a;
}

.news-title{
  flex:1;
  font-size:15px;
  color:#33424f;
}

/* ===============================
   フッター
================================ */

.site-footer{
  margin-top:42px;
  background:#1f4b74;
  color:#fff;
}

.site-footer-main{
  padding:18px 20px 16px;
  text-align:center;
}

.site-footer-org{
  font-size:16px;
  line-height:1.6;
  font-weight:700;
}

.site-footer-address{
  margin-top:4px;
  font-size:12px;
  line-height:1.7;
}

.site-footer-tel{
  margin-top:2px;
  font-size:12px;
  line-height:1.7;
}

.site-footer-copy{
  padding:10px 20px 16px;
  text-align:center;
  font-size:11px;
  line-height:1.6;
  color:#666;
  background:#fff;
}

/* ===============================
   レスポンシブ
================================ */

@media (max-width:1024px){
  .header-inner{
    flex-direction:column;
    align-items:flex-start;
  }

  .global-nav ul{
    gap:14px 18px;
  }

  .quick-grid{
    grid-template-columns:1fr 1fr;
  }
}

@media (max-width:768px){
  .container,
  .header-inner{
    padding-left:16px;
    padding-right:16px;
  }

  .site-name{
    font-size:20px;
  }

  .hero,
  .hero-overlay{
    min-height:460px;
  }

  .hero-inner{
    padding:140px 16px 64px 16px;
  }

  .hero-copy h1{
    font-size:34px;
  }

  .hero-text{
    font-size:14px;
    line-height:1.9;
  }

  .quick-grid{
    grid-template-columns:1fr;
  }

  .news-item{
    flex-direction:column;
    gap:6px;
  }

  .news-date{
    flex:none;
  }
}

@media (max-width:480px){
  .hero,
  .hero-overlay{
    min-height:420px;
  }

  .hero-inner{
    padding:126px 16px 56px 16px;
  }

  .hero-copy h1{
    font-size:28px;
  }

  .btn{
    min-width:150px;
    padding:12px 18px;
  }
}