@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;700&family=Noto+Sans+JP:wght@400;700&family=Frank+Ruhl+Libre:wght@400;700&display=swap');

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

/* スクリーンリーダー/SEO向け（見出しが画像のページ用の代替テキスト見出し） */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html { font-size: 16px; }

body {
  font-family: 'Noto Sans JP', "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", "メイリオ", Meiryo, sans-serif;
  color: #111;
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
  padding: 0;
  background: #fff;
}

a { color: inherit; text-decoration: underline; }
a:hover { text-decoration: none; }
img { max-width: 100%; height: auto; }

/* ===== WRAPPER ===== */
.pagewidth { max-width: 1000px; margin: 0 auto; padding: 0 15px; }

/* ===== HEADER ===== */
#headerwrap {
  border-top: 2px solid #22679C;
  border-bottom: 2px solid #22679C;
  overflow: hidden;
}
#header { padding: 10px 0; }
.header-brand-container {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 10px;
}
.header-logo a { text-decoration: none; }
.header-logo img { max-height: 80px; width: auto; }
.header-info {
  text-align: right;
  color: #666;
}
.header-tagline { font-size: 13px; margin-bottom: 8px; }
.header-address { font-size: 13px; color: #666; }
.header-contact {
  color: #186097;
  font-size: 14px;
  font-family: 'Noto Serif JP', serif;
  font-weight: 400;
  display: block;
  margin-top: 5px;
}
.header-tel {
  color: #186097;
  font-size: 30px;
  font-family: 'Frank Ruhl Libre', serif;
  line-height: 1.2;
  display: block;
}

/* ===== PC NAVIGATION ===== */
#main-nav { background: #21659C; display: none; }
#main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  max-width: 1000px;
  margin: 0 auto;
}
#main-nav li { flex: 1; }
#main-nav li a {
  display: block;
  text-align: center;
  color: #fff;
  text-decoration: none;
  font-family: 'Noto Serif JP', serif;
  font-size: 13px;
  padding: 10px 5px;
  border-right: 1px solid rgba(255,255,255,0.3);
  transition: background 0.2s;
}
#main-nav li:last-child a { border-right: none; }
#main-nav li a:hover,
#main-nav li a.active { background: #186097; }

/* Hamburger (mobile) */
#hamburger-btn {
  display: none;
  background: #21659C;
  color: #fff;
  border: none;
  cursor: pointer;
  padding: 10px 15px;
  width: 100%;
  text-align: left;
  font-size: 14px;
  font-family: 'Noto Serif JP', serif;
}
#mobile-nav {
  display: none;
  background: #21659C;
}
#mobile-nav ul { list-style: none; margin: 0; padding: 0; }
#mobile-nav li a {
  display: block;
  color: #fff;
  text-decoration: none;
  padding: 12px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  font-family: 'Noto Serif JP', serif;
  font-size: 14px;
}
#mobile-nav.open { display: block; }

/* ===== LAYOUT ===== */
#layout {
  padding-top: 20px;
  padding-bottom: 40px;
}
.layout-with-sidebar {
  display: flex;
  gap: 30px;
  align-items: flex-start;
}
#content { flex: 1; min-width: 0; max-width: 685px; }
#sidebar {
  width: 200px;
  flex-shrink: 0;
  background: #FEEFCD;
  border: 1px solid #FCCD89;
  margin-bottom: 70px;
}
.sidebar-inner { padding: 0; }
.sidebar-nav-img { display: block; }
.sidebar-nav-img img { width: 100%; height: auto; display: block; }
.sidebar-nav { padding: 5px; }
.sidebar-nav ul { list-style: none; margin: 0; padding: 0; }
.sidebar-nav li {
  border: solid 1px #FDDC8E;
  background: #fff;
  margin: 0 5px 5px;
  position: relative;
}
.sidebar-nav li::before {
  content: '';
  border-left: 4px solid #21659C;
  height: 100%;
  display: block;
  position: absolute;
  top: 0;
  left: 1px;
}
.sidebar-nav li a {
  display: block;
  text-decoration: none;
  color: #333;
  font-family: 'Noto Serif JP', serif;
  font-size: 12px;
  padding: 5px 5px 5px 10px;
}
.sidebar-nav li a:hover { color: #21659C; }
.sidebar-nav li a b {
  color: #21659C;
  font-size: 14px;
  display: block;
  margin-bottom: 2px;
  font-weight: 400;
}
.sidebar-nav li a .nav-sub {
  font-size: 11px;
  color: #555;
  display: block;
  line-height: 1.5;
}
.sidebar-symbol { padding: 5px; }
.sidebar-symbol img { width: 100%; height: auto; display: block; }
.sidebar-contact {
  padding: 8px 10px;
  font-size: 11px;
  color: #555;
  line-height: 1.7;
}
.sidebar-contact p { margin: 0 0 8px; }
.sidebar-contact p:last-child { margin-bottom: 0; }

/* ===== SUBPAGE HEADER ===== */
.subpage-header {
  background: #21659C;
  color: #fff;
  padding: 25px 20px;
  margin-bottom: 25px;
  background-size: cover;
  background-position: center;
}
.subpage-header h1 {
  margin: 0;
  font-family: 'Noto Serif JP', serif;
  font-size: 22px;
  font-weight: 400;
}

/* ===== TOP PAGE ===== */
.top-main-image { margin-bottom: 0; }
.top-main-image img { width: 100%; display: block; height: auto; }
.top-greeting {
  display: flex;
  gap: 15px;
  margin: 20px 0;
  flex-wrap: wrap;
}
.top-greeting-left { flex: 1; min-width: 140px; }
.top-greeting-right { flex: 1; min-width: 140px; }
.top-greeting-quote {
  font-family: 'Noto Serif JP', serif;
  font-size: 15px;
  line-height: 1.9;
  color: #21659C;
  margin-bottom: 12px;
  font-weight: 400;
}
.top-section-heading {
  font-family: 'Noto Serif JP', serif;
  font-size: 20px;
  color: #20659b;
  padding-left: 10px;
  margin: 25px 0 12px;
  border-left: 4px solid #20659b;
  font-weight: 400;
}
.news-list { list-style: none; margin: 0; padding: 0; }
.news-list li {
  display: flex;
  gap: 15px;
  padding: 8px 0;
  border-bottom: 1px dotted #ccc;
  align-items: baseline;
}
.news-list time { color: #666; font-size: 13px; white-space: nowrap; }
.news-list a { text-decoration: none; color: #21659C; }
.news-list a:hover { text-decoration: underline; }
.top-info-box {
  background: #f9f3e8;
  border: 1px solid #FCCD89;
  padding: 20px;
  margin: 20px 0;
  border-radius: 3px;
}
.top-info-box h3 {
  color: #c72300;
  font-family: 'Noto Serif JP', serif;
  font-size: 18px;
  text-align: center;
  margin-top: 0;
}

/* ===== CONTENT SECTIONS ===== */
.section-heading {
  color: #c72300;
  font-family: 'Noto Serif JP', serif;
  font-size: 20px;
  text-align: center;
  border-bottom: 2px solid #c72300;
  padding-bottom: 8px;
  margin: 30px 0 20px;
}
.section-heading-blue {
  color: #21659C;
  font-family: 'Noto Serif JP', serif;
  font-size: 18px;
  border-left: 5px solid #21659C;
  padding-left: 10px;
  margin: 25px 0 15px;
}
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 15px 0;
  overflow-x: auto;
  display: block;
}
.info-table th, .info-table td {
  border: 1px solid #ccc;
  padding: 8px 12px;
  text-align: left;
  font-size: 13px;
}
.info-table th {
  background: #21659C;
  color: #fff;
  font-family: 'Noto Serif JP', serif;
  font-weight: 400;
  white-space: nowrap;
}
.info-table tr:nth-child(even) { background: #f5f5f5; }
.table-scroll-hint {
  font-size: 12px;
  color: #888;
  margin-bottom: 5px;
}
.info-box {
  background: #f5f5f5;
  border-left: 4px solid #21659C;
  padding: 15px;
  margin: 15px 0;
  font-size: 13px;
}
.info-box p { margin: 0 0 8px; }
.info-box p:last-child { margin-bottom: 0; }
.contact-info-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 5px 15px;
  margin: 20px 0;
  font-size: 14px;
}
.contact-info-grid dt {
  font-weight: bold;
  color: #21659C;
  white-space: nowrap;
}
.price-box {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 15px;
  margin: 20px 0;
}
.price-card {
  background: #f0f5fb;
  border: 1px solid #21659C;
  border-radius: 4px;
  padding: 15px;
  text-align: center;
}
.price-card-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 14px;
  color: #21659C;
  font-weight: 700;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid #21659C;
}
.price-card-item { font-size: 13px; margin: 5px 0; }
.price-amount {
  font-size: 16px;
  font-weight: bold;
  color: #c72300;
}
.achievement-list {
  columns: 2;
  column-gap: 20px;
  list-style: none;
  margin: 10px 0;
  padding: 0;
}
.achievement-list li {
  font-size: 13px;
  padding: 3px 0;
  border-bottom: 1px dotted #ccc;
  break-inside: avoid;
}
.badge-notice {
  background: #fff3cd;
  border: 1px solid #ffc107;
  padding: 10px 15px;
  border-radius: 3px;
  font-size: 13px;
  color: #856404;
  margin: 15px 0;
}

/* ===== CONTACT FORM ===== */
.contact-form { max-width: 600px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-weight: bold;
  margin-bottom: 5px;
  font-size: 14px;
}
.form-group label .required {
  color: #c72300;
  font-size: 12px;
  margin-left: 5px;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ccc;
  border-radius: 3px;
  font-family: inherit;
  font-size: 14px;
}
.form-group textarea { resize: vertical; }
.hidden { display: none; }
.submit-btn {
  background: #21659C;
  color: #fff;
  border: none;
  padding: 12px 40px;
  font-family: 'Noto Serif JP', serif;
  font-size: 15px;
  cursor: pointer;
  border-radius: 3px;
  transition: background 0.2s;
}
.submit-btn:hover { background: #186097; }

/* ===== TOPICS ===== */
.topics-list { list-style: none; margin: 0; padding: 0; }
.topics-list li {
  display: flex;
  gap: 15px;
  padding: 12px 0;
  border-bottom: 1px solid #eee;
  align-items: baseline;
}
.topics-list time { color: #666; font-size: 13px; white-space: nowrap; }
.topics-list a { text-decoration: none; color: #21659C; font-size: 14px; }
.topics-list a:hover { text-decoration: underline; }
article.post { max-width: 680px; }
article.post .post-date { color: #888; font-size: 13px; margin-bottom: 5px; }
article.post h1 { font-family: 'Noto Serif JP', serif; font-size: 20px; color: #21659C; margin-top: 0; }
article.post .post-body { line-height: 1.9; margin-top: 20px; }
.back-link { margin-top: 30px; }
.back-link a { color: #21659C; text-decoration: none; }
.back-link a:hover { text-decoration: underline; }

/* ===== FOOTER ===== */
#footerwrap {
  border-top: 2px solid #22679C;
  background: #fff;
  padding-top: 30px;
}
.footer-page-links {
  text-align: center;
  margin-bottom: 20px;
}
.footer-page-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
}
.footer-page-links li {
  border-left: 1px solid #111;
  padding: 0 12px;
  line-height: 1.2;
  margin-bottom: 8px;
}
.footer-page-links li:first-child { border-left: none; }
.footer-page-links a {
  color: #21659C;
  font-family: 'Noto Serif JP', serif;
  font-size: 13px;
  text-decoration: none;
}
.footer-page-links a:hover { text-decoration: underline; }
.footer-info {
  text-align: center;
  font-size: 13px;
  color: #666;
  margin-bottom: 20px;
  line-height: 2;
}
.footer-info a { color: #21659C; }
.footer-bottom-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 15px;
}
.footer-bottom-links a {
  color: #21659C;
  font-size: 13px;
  text-decoration: none;
}
.footer-bottom-links a:hover { text-decoration: underline; }
.copyright {
  text-align: center;
  padding-bottom: 15px;
  font-size: 12px;
  color: #888;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .header-brand-container { flex-direction: column; }
  .header-info { text-align: left; }
  .header-tel { font-size: 24px; }
  #main-nav { display: none; }
  #hamburger-btn { display: block; }
  .layout-with-sidebar { flex-direction: column; }
  #sidebar { width: 100%; }
  #content { max-width: 100%; }
  .achievement-list { columns: 1; }
  .price-box { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .price-box { grid-template-columns: 1fr; }
  .top-greeting { flex-direction: column; }
}