/* リセット & 基本設定 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #2E7BBF;
  --primary-light: #E8F4FC;
  --accent: #F5A623;
  --accent-light: #FEF3E2;
  --text: #333333;
  --text-light: #666666;
  --text-muted: #888888;
  --bg: #ffffff;
  --bg-gray: #f8f9fa;
  --border: #e5e7eb;
  --border-light: #ddd;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --radius: 8px;
  --banner-red: #C9625E;
  --banner-pink: #F5D6D4;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans JP', 'Hiragino Sans', 'Meiryo', sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
}

/* シンプルヘッダー */
.header-simple {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  padding: 15px;
}

/* ハンバーガーメニュー */
.hamburger-menu {
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hamburger-menu span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--text);
  transition: 0.3s;
}

/* サイドメニュー */
.side-menu {
  position: fixed;
  top: 0;
  left: -320px;
  width: 300px;
  height: 100vh;
  background: #1a1a1a;
  box-shadow: 2px 0 15px rgba(0,0,0,0.3);
  transition: left 0.3s ease;
  z-index: 1001;
  padding: 20px 0;
}

.side-menu.active {
  left: 0;
}

.side-menu ul {
  list-style: none;
  margin-top: 20px;
}

.side-menu li {
  border-bottom: 1px solid #333;
}

.side-menu li:first-child {
  border-top: 1px solid #333;
}

.side-menu a {
  display: block;
  padding: 18px 25px;
  color: #ccc;
  text-decoration: none;
  font-size: 0.95rem;
  transition: background 0.3s, color 0.3s;
}

.side-menu a:hover {
  background: #333;
  color: #fff;
}

.side-menu a.highlight {
  background: #444;
  color: #fff;
}

.close-menu {
  position: absolute;
  top: 15px;
  right: 20px;
  background: none;
  border: none;
  font-size: 2.5rem;
  cursor: pointer;
  color: #888;
  line-height: 1;
}

.close-menu:hover {
  color: #fff;
}

.menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  visibility: hidden;
  transition: 0.3s;
  z-index: 1000;
}

.menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ロゴセクション */
.logo-section {
  text-align: center;
  padding: 80px 20px 40px;
}

.logo-icon {
  margin-bottom: 20px;
}

.site-title {
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.5;
}

/* ピックアップセクション */
.pickup-section {
  padding: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.pickup-label {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 10px;
}

.pickup-banner {
  border: 3px solid var(--banner-red);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg);
}

.banner-content {
  padding: 30px;
  text-align: center;
  background: linear-gradient(to bottom, var(--bg) 70%, var(--banner-pink) 100%);
  position: relative;
}

.banner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
  font-size: 0.9rem;
  color: var(--text-light);
}

.banner-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  line-height: 1.5;
}

.banner-info {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 8px;
}

.banner-info.highlight {
  font-weight: 600;
  margin-top: 15px;
}

.banner-illustration {
  margin-top: 25px;
  font-size: 1.5rem;
  display: flex;
  justify-content: center;
  gap: 15px;
}

/* メインナビゲーション */
.main-nav-section {
  padding: 30px 20px;
  max-width: 800px;
  margin: 0 auto;
}

.nav-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.nav-button {
  display: inline-block;
  padding: 15px 30px;
  border: 2px solid var(--primary-light);
  border-radius: var(--radius);
  color: var(--primary);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  background: var(--bg);
  transition: all 0.3s;
  min-width: 180px;
  text-align: center;
}

.nav-button:hover {
  background: var(--primary-light);
  border-color: var(--primary);
}

/* 総会資料セクション */
.assembly-section {
  padding: 40px 20px;
  text-align: center;
}

.assembly-title {
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 20px;
  font-weight: 600;
}

.assembly-info {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
}

.register-link {
  color: var(--primary);
  text-decoration: underline;
}

.register-link:hover {
  text-decoration: none;
}

/* お知らせセクション */
.news-section {
  padding: 20px;
  max-width: 600px;
  margin: 0 auto;
}

.news-list {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  max-height: 200px;
  overflow-y: auto;
}

.news-item {
  padding: 12px 15px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.news-item:last-child {
  border-bottom: none;
}

.news-date {
  font-weight: 600;
  color: var(--text);
  display: block;
  margin-bottom: 3px;
}

.news-text {
  color: var(--text-light);
}

/* パートナーセクション */
.partners-section {
  padding: 40px 20px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-gray);
}

.partners-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  max-width: 800px;
  margin: 0 auto;
}

.partner-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: var(--text);
  font-size: 0.8rem;
  text-align: center;
  transition: opacity 0.3s;
}

.partner-logo:hover {
  opacity: 0.7;
}

.partner-icon {
  font-size: 2.5rem;
  margin-bottom: 8px;
}

/* Instagramセクション */
.instagram-section {
  padding: 30px 20px;
  max-width: 500px;
  margin: 0 auto;
}

.instagram-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  overflow: hidden;
}

.instagram-header {
  display: flex;
  align-items: center;
  padding: 12px 15px;
  gap: 10px;
  border-bottom: 1px solid var(--border);
}

.instagram-info {
  flex: 1;
}

.instagram-username {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
}

.instagram-followers {
  display: block;
  font-size: 0.8rem;
  color: var(--text-light);
}

.instagram-btn {
  background: var(--primary);
  color: white;
  padding: 8px 15px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  text-decoration: none;
}

.instagram-content {
  padding: 0;
}

.instagram-post-image {
  background: linear-gradient(135deg, #87CEEB 0%, #DEB887 100%);
  padding: 50px 30px;
  text-align: center;
}

.post-title {
  font-size: 1rem;
  color: white;
  margin-bottom: 15px;
}

.post-highlight {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  line-height: 1.4;
}

.instagram-actions {
  padding: 12px 15px;
  display: flex;
  gap: 15px;
  font-size: 1.3rem;
  border-bottom: 1px solid var(--border);
}

.instagram-actions .bookmark {
  margin-left: auto;
}

.instagram-likes {
  padding: 8px 15px;
  font-size: 0.9rem;
  font-weight: 600;
}

.instagram-caption {
  padding: 0 15px 15px;
  font-size: 0.9rem;
  line-height: 1.6;
}

.hashtag {
  color: #00376B;
}

.instagram-more {
  display: block;
  padding: 12px 15px;
  text-align: center;
  color: var(--text-light);
  text-decoration: none;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
}

.instagram-more:hover {
  background: var(--bg-gray);
}

/* Twitterセクション */
.twitter-section {
  padding: 20px;
  text-align: center;
}

.twitter-link {
  color: var(--primary);
  text-decoration: underline;
  font-size: 0.95rem;
}

/* フッター */
.footer-simple {
  background: var(--bg-gray);
  padding: 40px 20px;
  margin-top: 40px;
  border-top: 1px solid var(--border);
}

.footer-content {
  max-width: 600px;
  margin: 0 auto;
  font-size: 0.95rem;
  line-height: 1.8;
}

.footer-office {
  font-weight: 600;
  margin-bottom: 10px;
}

/* レスポンシブ */
@media (max-width: 768px) {
  .site-title {
    font-size: 1.5rem;
  }

  .banner-title {
    font-size: 1.2rem;
  }

  .nav-buttons {
    flex-direction: column;
    align-items: center;
  }

  .nav-button {
    width: 100%;
    max-width: 280px;
  }

  .partners-logos {
    gap: 25px;
  }

  .partner-logo {
    font-size: 0.75rem;
  }

  .partner-icon {
    font-size: 2rem;
  }
}

/* アクセシビリティ */
:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

/* スキップリンク */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: white;
  padding: 8px 16px;
  z-index: 2000;
}

.skip-link:focus {
  top: 0;
}

/* ===================================
   以下は他ページ用のスタイル
   =================================== */

/* 汎用ヘッダー（サブページ用） */
.header {
  background: var(--bg);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 25px;
}

.nav-menu a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
}

.nav-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
}

/* コンテナ */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ページヒーロー */
.hero {
  background: linear-gradient(135deg, var(--primary), #1a5a9e);
  color: white;
  text-align: center;
  padding: 80px 20px;
}

.hero-title {
  font-size: 2rem;
  margin-bottom: 15px;
}

.hero-subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* セクション */
section {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 40px;
  color: var(--text);
}

/* フッター（サブページ用） */
.footer {
  background: #1a1a1a;
  color: #ccc;
  padding: 40px 20px;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #333;
  color: #888;
}

/* フォーム */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: var(--radius);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-size: 1rem;
  transition: 0.3s;
}

.btn-submit {
  background: var(--primary);
  color: white;
  width: 100%;
}

.btn-submit:hover {
  background: #1a5a9e;
}

.required {
  color: #dc2626;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 20px;
    gap: 0;
    box-shadow: var(--shadow);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu a {
    padding: 15px 0;
    border-bottom: 1px solid var(--border);
  }

  .hero-title {
    font-size: 1.6rem;
  }

  .contact-form {
    padding: 25px 20px;
  }
}

/* 印刷用 */
@media print {
  .header-simple, .footer-simple, .side-menu, .menu-overlay {
    display: none;
  }
}

/* ===================================
   勉強会ページ (study.html)
   =================================== */
.page-title {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 30px;
}

.seminar-section {
  padding: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.seminar-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 25px;
  overflow: hidden;
  background: var(--bg);
}

.seminar-header {
  background: #333;
  color: white;
  padding: 10px 15px;
  font-size: 0.85rem;
  text-align: center;
}

.seminar-header.cardio {
  background: #4CAF50;
}

.seminar-header.neuro {
  background: #9C8B7E;
}

.seminar-header.musculo {
  background: #8BC34A;
}

.seminar-body {
  padding: 25px;
  text-align: center;
}

.seminar-badge {
  display: inline-block;
  padding: 5px 15px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 15px;
}

.seminar-badge.live {
  background: #dc2626;
  color: white;
}

.seminar-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  line-height: 1.5;
}

.seminar-speakers,
.seminar-lecturers {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 5px;
}

.seminar-speakers {
  display: inline-block;
  vertical-align: top;
  text-align: left;
  margin-right: 30px;
}

.seminar-lecturers {
  display: inline-block;
  vertical-align: top;
  text-align: left;
}

.seminar-footer {
  background: #f5f5f5;
  padding: 15px 25px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 15px;
  font-size: 0.85rem;
}

.seminar-footer.cardio {
  background: #E8F5E9;
}

.seminar-footer.neuro {
  background: #EFEBE9;
}

.seminar-date strong {
  color: var(--text);
}

.curriculum-code {
  color: #dc2626;
  font-size: 0.8rem;
}

.seminar-fee {
  text-align: right;
}

.seminar-fee p {
  margin: 3px 0;
}

.seminar-description {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* ===================================
   研修会ページ (training.html)
   =================================== */
.training-section {
  padding: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.training-card {
  border-radius: var(--radius);
  margin-bottom: 25px;
  overflow: hidden;
  background: var(--bg);
}

.training-card.blue {
  border: 3px solid #1E88E5;
}

.training-card.yellow {
  border: 3px solid #FDD835;
  background: #FFFDE7;
}

.training-card.red {
  border: 3px solid #E53935;
  background: #FFEBEE;
}

.training-badge {
  background: #333;
  color: white;
  padding: 8px 15px;
  font-size: 0.75rem;
  text-align: center;
}

.training-content {
  padding: 30px;
}

.training-content.illustrated {
  background: linear-gradient(to bottom, transparent 70%, rgba(200, 200, 200, 0.3) 100%);
  text-align: center;
}

.training-side-label {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  font-weight: 700;
  color: #1E88E5;
  letter-spacing: 3px;
}

.training-main {
  position: relative;
}

.delivery-badge {
  display: inline-block;
  background: #E53935;
  color: white;
  padding: 5px 15px;
  border-radius: 4px;
  font-size: 0.85rem;
  margin-bottom: 15px;
}

.training-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  line-height: 1.4;
}

.training-title.center {
  text-align: center;
}

.training-lecturer {
  font-size: 1rem;
  color: var(--text);
}

.training-footer {
  background: #f5f5f5;
  padding: 15px 25px;
  font-size: 0.85rem;
  line-height: 1.8;
}

.training-logo-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
  font-size: 0.9rem;
  color: var(--text-light);
}

.training-info {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 8px;
}

.training-info.highlight {
  font-weight: 600;
  margin-top: 15px;
}

.training-illustration {
  margin-top: 25px;
  font-size: 1.5rem;
  display: flex;
  justify-content: center;
  gap: 15px;
}

/* ===================================
   お問い合わせページ (contact.html)
   =================================== */
.contact-section {
  padding: 20px;
  max-width: 600px;
  margin: 0 auto;
}

.contact-form input,
.contact-form textarea {
  background: #333;
  border: none;
  color: white;
  padding: 15px;
  font-size: 1rem;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #888;
}

.form-note {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 20px;
}

.privacy-link {
  color: var(--primary);
  text-decoration: underline;
}

.submit-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 12px 30px;
  border-radius: var(--radius);
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.3s;
}

.submit-btn:hover {
  background: #1a5a9e;
}

.required-note {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 15px;
}

/* ===================================
   総会ページ (assembly.html)
   =================================== */
.logo-section.large {
  padding: 100px 20px 60px;
}

.logo-icon.large {
  margin-bottom: 30px;
}

.site-title.large {
  font-size: 2.2rem;
}

.assembly-download-section {
  padding: 40px 20px;
  max-width: 800px;
  margin: 0 auto;
}

.download-items {
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
}

.download-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.download-item.small {
  flex-direction: row;
  gap: 15px;
  margin-top: 20px;
}

.pdf-icon {
  flex-shrink: 0;
}

.pdf-icon.small svg {
  width: 30px;
  height: 38px;
}

.download-info {
  text-align: center;
}

.download-item.small .download-info {
  text-align: left;
  flex: 1;
}

.file-name {
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 5px;
}

.file-size {
  font-size: 0.8rem;
  color: var(--text-light);
}

.download-btn {
  display: inline-block;
  background: #333;
  color: white;
  padding: 12px 25px;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background 0.3s;
}

.download-btn:hover {
  background: #555;
}

.download-btn.small {
  padding: 8px 20px;
  font-size: 0.85rem;
}

/* ===================================
   渉外部ページ (activities.html)
   =================================== */
.activities-section {
  padding: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.activities-section .section-title {
  text-align: left;
  font-size: 1.3rem;
  margin-bottom: 15px;
  color: var(--text);
}

.section-description {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 30px;
  line-height: 1.8;
}

.partner-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 40px;
  justify-content: center;
}

.partner-btn {
  display: inline-block;
  padding: 15px 20px;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.85rem;
  text-align: center;
  min-width: 150px;
  line-height: 1.4;
  transition: opacity 0.3s;
}

.partner-btn:hover {
  opacity: 0.8;
}

.partner-btn.orange {
  background: #FF9800;
  color: white;
}

.partner-btn.pink {
  background: #F48FB1;
  color: white;
}

.partner-btn.coral {
  background: #FF7043;
  color: white;
}

.partner-btn.salmon {
  background: #FFAB91;
  color: #333;
}

.partner-btn.gray {
  background: #9E9E9E;
  color: white;
}

.activity-detail {
  margin-bottom: 40px;
  padding: 25px;
  background: var(--bg-gray);
  border-radius: var(--radius);
}

.activity-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 15px;
  padding-left: 15px;
  border-left: 4px solid var(--primary);
}

.activity-text {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 15px;
}

.activity-link {
  color: var(--primary);
  word-break: break-all;
}

.lecture-images {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin: 20px 0;
}

.lecture-image-placeholder {
  flex: 1;
  min-width: 250px;
  background: white;
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: var(--radius);
  font-size: 0.85rem;
}

.lecture-image-placeholder ol {
  margin-left: 20px;
  margin-top: 10px;
}

.lecture-image-placeholder li {
  margin-bottom: 8px;
}

/* ===================================
   組織図ページ (organization.html)
   =================================== */
.organization-section {
  padding: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.org-year {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 30px;
}

.org-table-wrapper {
  overflow-x: auto;
  margin-bottom: 30px;
}

.org-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.org-table th,
.org-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.org-table th {
  background: #f5f5f5;
  font-weight: 600;
  width: 80px;
  white-space: nowrap;
}

.org-table td.name {
  text-align: right;
  font-weight: 500;
  width: 100px;
  white-space: nowrap;
}

.org-table.executive td:first-child {
  padding-left: 30px;
}

.org-subtitle {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin: 40px 0 20px;
  padding-left: 15px;
  border-left: 4px solid var(--primary);
}

.dept-section {
  background: var(--bg-gray);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.dept-header {
  display: flex;
  align-items: center;
  gap: 15px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 15px;
  flex-wrap: wrap;
}

.dept-sub-header {
  display: flex;
  align-items: center;
  gap: 15px;
  padding-left: 100px;
  margin-bottom: 15px;
}

.dept-name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--primary);
  min-width: 80px;
}

.dept-position {
  font-size: 0.9rem;
  color: var(--text-light);
}

.dept-person {
  font-weight: 600;
  color: var(--text);
}

.dept-divisions {
  padding-left: 20px;
}

.division-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  flex-wrap: wrap;
}

.division-row:last-child {
  border-bottom: none;
}

.division-name {
  font-weight: 600;
  min-width: 100px;
  color: var(--text);
}

.division-position {
  font-size: 0.85rem;
  color: var(--text-light);
  min-width: 40px;
}

.division-person {
  font-weight: 500;
  color: var(--text);
  min-width: 70px;
}

.division-desc {
  font-size: 0.85rem;
  color: var(--text-light);
  flex: 1;
}

.coming-soon {
  font-size: 1.1rem;
  color: var(--text-light);
  padding: 60px 20px;
  text-align: center;
}

/* ===================================
   タブレット対応 (1024px以下)
   =================================== */
@media (max-width: 1024px) {
  body {
    font-size: 17px;
  }

  .site-title {
    font-size: 1.7rem;
  }

  .banner-title {
    font-size: 1.35rem;
  }

  .nav-button {
    padding: 18px 35px;
    font-size: 1.05rem;
    min-width: 200px;
  }

  .page-title {
    font-size: 1.6rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .seminar-title {
    font-size: 1.25rem;
  }

  .training-title {
    font-size: 1.4rem;
  }

  /* 組織図タブレット対応 */
  .org-year {
    font-size: 1.15rem;
  }

  .org-table {
    font-size: 1rem;
  }

  .dept-name {
    font-size: 1.15rem;
  }
}

/* ===================================
   モバイル対応 (768px以下)
   =================================== */
@media (max-width: 768px) {
  /* 基本フォントサイズ */
  body {
    font-size: 16px;
    line-height: 1.7;
  }

  /* ヘッダー・メニュー */
  .hamburger-menu {
    padding: 12px;
    min-width: 48px;
    min-height: 48px;
  }

  .hamburger-menu span {
    width: 26px;
    height: 3px;
  }

  .side-menu {
    width: 280px;
    left: -300px;
  }

  .side-menu a {
    padding: 16px 20px;
    font-size: 1rem;
    min-height: 52px;
    display: flex;
    align-items: center;
  }

  .close-menu {
    font-size: 2.2rem;
    padding: 10px;
    min-width: 48px;
    min-height: 48px;
  }

  /* ロゴセクション */
  .logo-section {
    padding: 70px 15px 30px;
  }

  .site-title {
    font-size: 1.5rem;
    line-height: 1.6;
  }

  .logo-icon svg {
    width: 70px;
    height: 70px;
  }

  /* ピックアップバナー */
  .pickup-section {
    padding: 15px;
  }

  .pickup-label {
    font-size: 0.95rem;
  }

  .banner-content {
    padding: 25px 20px;
  }

  .banner-title {
    font-size: 1.2rem;
    line-height: 1.6;
  }

  .banner-info {
    font-size: 1rem;
    margin-bottom: 10px;
  }

  .banner-illustration {
    font-size: 1.3rem;
    gap: 10px;
  }

  /* ナビゲーションボタン */
  .main-nav-section {
    padding: 25px 15px;
  }

  .nav-buttons {
    flex-direction: column;
    align-items: center;
    gap: 15px;
  }

  .nav-button {
    width: 100%;
    max-width: 320px;
    padding: 18px 25px;
    font-size: 1.05rem;
    min-height: 56px;
  }

  /* 総会セクション */
  .assembly-title {
    font-size: 1.2rem;
  }

  .assembly-info {
    font-size: 1rem;
    line-height: 1.9;
  }

  /* お知らせセクション */
  .news-section {
    padding: 15px;
  }

  .news-item {
    padding: 14px 12px;
    font-size: 0.95rem;
  }

  .news-date {
    font-size: 0.9rem;
  }

  /* パートナーセクション */
  .partners-section {
    padding: 35px 15px;
  }

  .partners-logos {
    gap: 25px;
  }

  .partner-logo {
    font-size: 0.85rem;
    padding: 10px;
    min-width: 100px;
  }

  .partner-icon {
    font-size: 2.2rem;
  }

  /* Instagram */
  .instagram-section {
    padding: 25px 15px;
  }

  .instagram-username {
    font-size: 1rem;
  }

  .instagram-btn {
    padding: 10px 18px;
    font-size: 0.9rem;
  }

  .post-highlight {
    font-size: 1.3rem;
  }

  .instagram-caption {
    font-size: 0.95rem;
    line-height: 1.7;
  }

  .instagram-more {
    padding: 14px;
    font-size: 0.95rem;
    min-height: 48px;
  }

  /* フッター */
  .footer-simple {
    padding: 35px 15px;
  }

  .footer-content {
    font-size: 1rem;
    line-height: 1.9;
  }

  /* ページタイトル共通 */
  .page-title {
    font-size: 1.4rem;
    margin-bottom: 25px;
  }

  /* 勉強会ページ */
  .seminar-section {
    padding: 15px;
  }

  .seminar-header {
    font-size: 0.9rem;
    padding: 12px;
  }

  .seminar-body {
    padding: 20px 15px;
  }

  .seminar-badge {
    font-size: 0.9rem;
    padding: 6px 18px;
  }

  .seminar-title {
    font-size: 1.15rem;
    line-height: 1.6;
  }

  .seminar-speakers,
  .seminar-lecturers {
    font-size: 0.95rem;
    display: block;
    text-align: center;
    margin-right: 0;
    margin-bottom: 10px;
  }

  .seminar-footer {
    flex-direction: column;
    padding: 15px;
    gap: 12px;
  }

  .seminar-footer > * {
    font-size: 0.9rem;
  }

  .seminar-fee {
    text-align: left;
  }

  .seminar-description {
    font-size: 1rem;
  }

  /* 研修会ページ */
  .training-section {
    padding: 15px;
  }

  .training-badge {
    font-size: 0.85rem;
    padding: 10px 12px;
  }

  .training-content {
    padding: 25px 15px;
  }

  .training-title {
    font-size: 1.25rem;
    line-height: 1.5;
  }

  .training-info {
    font-size: 1rem;
    margin-bottom: 10px;
  }

  .training-footer {
    padding: 15px;
    font-size: 0.9rem;
  }

  /* お問い合わせページ */
  .contact-section {
    padding: 15px;
  }

  .contact-form {
    padding: 25px 15px;
  }

  .contact-form input,
  .contact-form textarea {
    font-size: 16px; /* iOS拡大防止 */
    padding: 14px;
  }

  .submit-btn {
    padding: 16px 30px;
    font-size: 1.05rem;
    min-height: 52px;
    width: 100%;
  }

  .form-note {
    font-size: 0.9rem;
  }

  /* 総会ダウンロードページ */
  .logo-section.large {
    padding: 80px 15px 50px;
  }

  .site-title.large {
    font-size: 1.7rem;
  }

  .download-items {
    flex-direction: column;
    gap: 30px;
    align-items: center;
  }

  .download-item {
    width: 100%;
    max-width: 300px;
  }

  .file-name {
    font-size: 0.95rem;
  }

  .file-size {
    font-size: 0.85rem;
  }

  .download-btn {
    padding: 14px 28px;
    font-size: 0.95rem;
    min-height: 48px;
  }

  .download-item.small {
    flex-wrap: wrap;
    justify-content: center;
  }

  .download-item.small .download-info {
    text-align: center;
    width: 100%;
    margin-bottom: 10px;
  }

  /* 渉外部ページ */
  .activities-section {
    padding: 15px;
  }

  .activities-section .section-title {
    font-size: 1.2rem;
    margin-bottom: 15px;
  }

  .section-description {
    font-size: 1rem;
    line-height: 1.9;
  }

  .partner-buttons {
    flex-direction: column;
    align-items: center;
  }

  .partner-btn {
    width: 100%;
    max-width: 300px;
    padding: 16px 20px;
    font-size: 0.95rem;
    min-height: 60px;
  }

  .activity-detail {
    padding: 20px 15px;
  }

  .activity-title {
    font-size: 1.1rem;
    padding-left: 12px;
  }

  .activity-text {
    font-size: 0.95rem;
    line-height: 1.9;
  }

  .lecture-images {
    flex-direction: column;
  }

  .lecture-image-placeholder {
    min-width: auto;
    font-size: 0.9rem;
  }

  /* 組織図ページ */
  .organization-section {
    padding: 15px;
  }

  .org-year {
    font-size: 1.1rem;
    margin-bottom: 25px;
  }

  .org-table-wrapper {
    margin: 0 -15px 25px;
    padding: 0 15px;
  }

  .org-table {
    font-size: 0.9rem;
  }

  .org-table th,
  .org-table td {
    padding: 12px 10px;
  }

  .org-table th {
    width: 70px;
    font-size: 0.85rem;
  }

  .org-table td.name {
    width: auto;
    font-size: 0.9rem;
  }

  .org-subtitle {
    font-size: 1.05rem;
    margin: 35px 0 15px;
  }

  .dept-section {
    padding: 15px;
    margin-bottom: 15px;
  }

  .dept-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
    padding-bottom: 12px;
  }

  .dept-name {
    font-size: 1.05rem;
    min-width: auto;
  }

  .dept-position,
  .dept-person {
    font-size: 0.9rem;
  }

  .dept-sub-header {
    padding-left: 0;
    margin-bottom: 12px;
    gap: 10px;
  }

  .dept-divisions {
    padding-left: 10px;
  }

  .division-row {
    flex-direction: column;
    gap: 4px;
    padding: 12px 0;
  }

  .division-name {
    font-size: 0.95rem;
    min-width: auto;
  }

  .division-position {
    font-size: 0.85rem;
  }

  .division-person {
    font-size: 0.9rem;
  }

  .division-desc {
    font-size: 0.85rem;
    padding-left: 0;
    margin-top: 5px;
  }
}

/* ===================================
   小型モバイル対応 (480px以下)
   =================================== */
@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

  .site-title {
    font-size: 1.35rem;
  }

  .banner-title {
    font-size: 1.1rem;
  }

  .banner-info {
    font-size: 0.95rem;
  }

  .nav-button {
    font-size: 1rem;
    padding: 16px 20px;
  }

  .page-title {
    font-size: 1.25rem;
  }

  /* Instagram */
  .instagram-header {
    flex-wrap: wrap;
    gap: 8px;
  }

  .instagram-btn {
    width: 100%;
    text-align: center;
    margin-top: 8px;
  }

  /* 組織図小型モバイル */
  .org-table {
    font-size: 0.85rem;
  }

  .org-table th {
    width: 60px;
    padding: 10px 8px;
  }

  .org-table td {
    padding: 10px 8px;
  }

  .org-table.executive td:first-child {
    padding-left: 10px;
  }

  .dept-name {
    font-size: 1rem;
  }

  .division-name {
    font-size: 0.9rem;
  }

  /* 勉強会・研修会 */
  .seminar-title {
    font-size: 1.1rem;
  }

  .training-title {
    font-size: 1.15rem;
  }

  /* パートナーボタン */
  .partner-btn {
    font-size: 0.9rem;
    padding: 14px 18px;
  }
}