/* =========================================
   下層ページ（第二階層）専用：1カラム
   design.css の末尾に追記
========================================= */
/* ========== Header ========== */
html, body {
  margin: 0;
  padding: 0;
}

.header {
  text-align: center;
}

body {
  background: #fff;
  color: #000;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "MS Mincho", serif;
  line-height: 1.7;
}

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

a { color: #000; text-decoration: none; }
a:hover { text-decoration: underline; }

p { text-align: left; margin: 0 0 12px; }

.site {
  width: 100%;
  max-width: 1000px;        /* PC時の横幅1000px */
  margin: 0 auto;           /* 中央寄せ */
  padding: 0 12px;          /* スマホ時の左右余白 */
}
/* ナビ全体 */
.nav {
  margin-top: 10px;
  background: #274a78;      /* 青礫 */
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  width: 100%;
  max-width: 1000px;        /* 1000px内に制限 */
  margin-left: auto;
  margin-right: auto;
  flex-wrap: nowrap;        /* PCでは折り返さない */
}

/* 各ナビ項目 */
.nav-item {
  flex: 1;                  /* 均等5分割 */
  padding: 14px 0;
  text-align: center;
  color: #fff;
  border-right: 1px solid rgba(255,255,255,0.25);
  font-size: 15px;
  white-space: nowrap;      /* 改行させない */
  transition: background 0.3s ease;
}

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

.nav-item:hover {
  background: #1f3a63;      /* 少し濃い色 */
  text-decoration: none;
}


/* ========== Divider ========== */
.divider {
  height: 1px;
  background: #191970;      /* マリンブルーブルー */
  margin: 12px 0;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 12px;
}

.logo img,
.tel img {
  width: 200px;
  height: 50px;
  object-fit: contain;
}

.catch {
  margin: 10px 0 6px;
  font-size: 16px;
  font-weight: 400;
  color: #000;
}

.subpage .main{
  text-align: left;          /* 下層は文章が多い前提なので左寄せ */
  padding: 14px 0 0;
}

.breadcrumb{
  font-size: 13px;
  margin: 6px 0 10px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

.breadcrumb a{
  color: #000;
}

.breadcrumb-sep{
  margin: 0 6px;
  opacity: 0.7;
}

.page-header{
  padding: 6px 0 2px;
}

.page-title{
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 700;
  text-align: left;
}

.page-lead{
  margin: 0 0 10px;
  font-size: 14px;
}

.content-single{
  max-width: 800px;          /* 読みやすい行長に制限 */
  margin: 0 auto;            /* 1カラムを中央に配置 */
  padding: 6px 0 24px;
}

.content-block{
  margin: 0 0 18px;
}

.content-title{
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
}

.content-list{
  margin: 0;
  padding-left: 18px;
}

.content-links{
  margin-top: 8px;
}

.btn-link{
  display: inline-block;
  padding: 10px 14px;
  border: 1px solid #191970;
  border-radius: 8px;
  text-decoration: none;
}

.btn-link:hover{
  text-decoration: none;
  opacity: 0.9;
}


/* ========== Footer ========== */
.footer {
  margin-top: 10px;
  background: #274a78; /* 青礫 */
  color: #fff;
  padding: 16px 12px;
  text-align: center;
}

.footer a {
  color: #fff;
}

.footer-nav {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.footer-info {
  max-width: 1000px;
  margin: 0 auto;
}

.footer-line {
  margin: 0 0 6px;
  text-align: center;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
}

.footer-text {
  margin: 0 0 10px;
  text-align: center;
  font-size: 14px;
}

.label {
  font-weight: 700;
}

.sep {
  margin: 0 8px;
  opacity: 0.85;
}

.copyright {
  margin: 0;
  font-size: 12px;
  opacity: 0.9;
}

/* ========== Responsive ========== */
@media (max-width: 820px) {
  .header-top {
    flex-direction: column;
    justify-content: center;
  }

  .greeting {
    flex-direction: column;
  }

  .greeting-item {
    width: 100%;
  }

  .nav-item {
    flex: 1 1 50%;
    min-width: 160px;
    border-right: 1px solid rgba(255,255,255,0.25);
    border-bottom: 1px solid rgba(255,255,255,0.18);
  }

  .nav-item:nth-child(2n) {
    border-right: none;
  }



/* スマホ時の余白最適化 */
@media (max-width: 820px){
  .page-title{
    font-size: 20px;
  }
  .content-single{
    padding: 4px 0 18px;
  }
}
/* ==============================
   下層ページ共通（1カラム）
============================== */

.subpage .main{
  text-align: left;
  padding-top: 10px;
}

.content-single{
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: 30px;
}

/* ==============================
   会社概要ページ
============================== */

.company-photo{
  text-align: center;
  margin-bottom: 20px;
}

.company-photo img{
  max-width: 100%;
  height: auto;
  border-radius: 6px;
}

.company-abstract{
  margin-top: 10px;
}

.page-title{
  font-size: 22px;
  margin-bottom: 14px;
  font-weight: bold;
}

/* tableを使わない会社概要 */

.company-data{
  border-top: 1px solid #ccc;
}

.company-data dt{
  width: 200px;
  float: left;
  clear: both;
  padding: 12px 0;
  font-weight: bold;
}

.company-data dd{
  margin-left: 200px;
  padding: 12px 0;
  border-bottom: 1px solid #eee;
}

/* レスポンシブ */

@media (max-width: 820px){

  .company-data dt,
  .company-data dd{
    float: none;
    width: 100%;
    margin-left: 0;
  }

  .company-data dt{
    background: #f5f5f5;
    padding: 8px;
  }

  .company-data dd{
    padding: 8px 8px 12px 8px;
  }
}