:root {
  --primary-blue: #004680;
  --primary-blue-dark: #003C6D;
  --bg-color: #ffffff;
  --surface-color: #EDF2F7;
  --text-main: #202020;
  --text-secondary: #5a5a5a;
  --accent-orange: #C90011;
  --border-color: #DCE4EF;
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 20px rgba(0, 64, 152, 0.08);
  --transition: all 0.3s ease;
}

body {
  font-family: 'Noto Sans', 'Noto Sans JP', 'Inter', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-color);
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

#main_content a {
  text-decoration: none;
  color: var(--primary-blue);
  transition: var(--transition);
}

#main_content a:hover {
  opacity: 0.8;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}


/* =============================================
   メインコンテンツ
   ============================================= */

/* Main Layout */
.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 40px;
  position: relative;
  display: inline-block;
  color: var(--primary-blue-dark);
}

.section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 40px;
  height: 3px;
  background-color: var(--primary-blue);
  border-radius: 2px;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #ffffff 0%, #eef5ff 100%);
  padding: 60px 0 50px;
  text-align: center;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  color: var(--primary-blue);
  margin: 0;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-top: 10px;
}

.briefing-banner {
  background-color: var(--primary-blue);
  color: white;
  border-radius: 12px;
  padding: 30px;
  margin-top: -30px;
  position: relative;
  z-index: 10;
  box-shadow: var(--shadow-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.briefing-info h3 {
  margin: 0 0 10px 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.briefing-info p {
  margin: 0;
  opacity: 0.9;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
}

.btn-primary {
  background-color: white;
  color: var(--primary-blue);
  padding: 12px 24px;
  border-radius: 30px;
  font-weight: 600;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  white-space: nowrap;
}

.btn-primary:hover,
.btn-primary:active {
  background-color: var(--surface-color);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0,0,0,0.15);
}

/* Key Links Grid */
.grid-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-auto-rows: 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.card {
  background: white;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.card:hover,
.card:active {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: #cce0ff;
}

/* CEO Card */
.card-ceo .card-img {
  height: 200px;
  background-size: cover;
  background-position: center;
  background-color: #ddd;
}
.card-title {
  padding: 24px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-blue-dark);
  margin: 0;
  flex-grow: 1;
}

/* Specific Cards */
.card-materials {
  padding: 30px 24px;
  justify-content: center;
  background-color: var(--surface-color);
}
.card-materials .date {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.card-materials h3 {
  font-size: 1.5rem;
  margin: 0 0 20px 0;
  color: var(--primary-blue-dark);
}
.icon-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}
.icon-link::after {
  content: "→";
  transition: transform 0.3s;
}
.icon-link:hover::after,
.icon-link:active::after {
  transform: translateX(4px);
}

.card-plan {
  background: linear-gradient(135deg, #004680 0%, #003C6D 100%);
  color: white;
  justify-content: center;
  padding: 30px;
}
.card-plan .card-title {
  color: white;
  font-size: 1.6rem;
  padding: 0;
  line-height: 1.3;
}
.card-plan .subtitle {
  opacity: 0.8;
  margin-top: 10px;
  font-weight: 500;
}

/* ハイライトエリア2 カード */
.card-governance .card-img,
.card-about .card-img {
  height: 200px;
  background-size: cover;
  background-position: center;
  background-color: #ddd;
}

/* 株価情報ミニカード */
.card-stock-mini {
  padding: 20px 24px;
  justify-content: space-between;
}

.card-stock-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
  margin-bottom: 12px;
}

.card-stock-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-blue);
}

.card-stock-price {
  margin-bottom: 10px;
}

.card-stock-price .price-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-blue-dark);
  line-height: 1;
}

.card-stock-price .price-unit {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-left: 4px;
}

.card-stock-chart-mini {
  height: 60px;
  width: 100%;
  margin-bottom: 12px;
}

.card-stock-chart-mini svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.card-stock-data {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
}

.card-stock-data > div {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.card-stock-data .data-key {
  color: var(--text-secondary);
}

.card-stock-data .data-val {
  font-weight: 600;
  color: var(--text-main);
}

/* Lower Section Grid */
.layout-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-bottom: 80px;
}

/* News List */
.news-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.news-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
}
.news-date {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  min-width: 100px;
}
.news-tag {
  background: var(--surface-color);
  color: var(--primary-blue);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid #cce0ff;
  white-space: nowrap;
}
.news-title {
  flex-grow: 1;
  font-weight: 500;
}
.news-pdf {
  color: var(--accent-orange);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

/* Stock Widget */
.stock-widget {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: var(--shadow-sm);
  height: max-content;
}
.stock-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 20px;
}
.stock-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-blue-dark);
  line-height: 1;
}
.stock-currency {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.stock-change {
  color: #00b300;
  font-weight: 600;
  font-size: 1rem;
}
.stock-chart {
  height: 100px;
  width: 100%;
  margin: 20px 0;
  border-bottom: 1px dashed var(--border-color);
  position: relative;
}
.stock-chart svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}
.stock-data {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}
.data-item {
  background: var(--surface-color);
  padding: 12px;
  border-radius: 8px;
}
.data-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.data-value {
  font-weight: 700;
  color: var(--text-main);
  font-size: 1.1rem;
}

/* Calendar Timeline */
.timeline-wrap {
  margin: 40px 0;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  padding-bottom: 80px;
}
.timeline-track {
  display: flex;
  position: relative;
  align-items: flex-end;
  height: 120px;
  border-bottom: 2px solid var(--primary-blue);
  padding-bottom: 20px;
}
.timeline-month {
  flex: 1;
  text-align: center;
  position: relative;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.timeline-month::after {
  content: '';
  position: absolute;
  bottom: -25px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 10px;
  background: var(--primary-blue);
}
.timeline-event {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  width: max-content;
}
.event-dot {
  width: 16px;
  height: 16px;
  background: var(--accent-orange);
  border: 3px solid white;
  border-radius: 50%;
  margin-bottom: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.event-dot.yellow {
  background: #ffcc00;
}
.event-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-blue-dark);
  text-align: center;
}

/* Document Library Grid */
.doc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.doc-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  height: 160px;
}
.doc-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}
.doc-card:hover img,
.doc-card:active img {
  transform: scale(1.05);
}
.doc-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,45,107,0.9) 0%, rgba(0,45,107,0.2) 100%);
  display: flex;
  align-items: flex-end;
  padding: 20px;
}
.doc-title {
  color: white;
  margin: 0;
  font-weight: 600;
  font-size: 1.1rem;
}

/* Buttons Grid */
.btn-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
}
.btn-grid .col-span-2 {
  grid-column: span 2;
}
.btn-outline {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: white;
  font-weight: 600;
  color: var(--text-main);
}
.btn-outline:hover,
.btn-outline:active {
  border-color: var(--primary-blue);
  color: var(--primary-blue);
  background: var(--surface-color);
}

/* =============================================
   レスポンシブ対応 (Mobile)
   ============================================= */
@media screen and (max-width: 768px) {
  .section {
    padding: 40px 0;
  }

  .section-title {
    font-size: 1.5rem;
    margin-bottom: 24px;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .briefing-banner {
    flex-direction: column;
    text-align: center;
    gap: 20px;
    padding: 20px;
  }

  .briefing-info h3 {
    font-size: 1.25rem;
  }

  .briefing-info p {
    justify-content: center;
    font-size: 0.85rem;
  }

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

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

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

  .btn-grid .col-span-2 {
    grid-column: span 1;
  }

  /* カレンダーの横スクロール対応 */
  .timeline-wrap {
    padding: 20px;
    padding-bottom: 70px;
    overflow-x: auto;
  }

  .timeline-track {
    min-width: 800px; /* 横スクロールを発生させる */
    padding-bottom: 30px;
  }

  /* ニュースリストの調整 */
  .news-item {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }

  .news-date {
    margin-bottom: -4px;
  }

}




/* =============================================
   レスポンシブ対応 (Mobile)
   ============================================= */

/* main以下のスタイルを定義 */
main {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    font-family: 'Noto Sans JP', 'Noto Sans', sans-serif;
    color: #202020;
    line-height: 1.8;
}

/* カスタムレイアウト用クラス */
.flex-container {
    display: flex;
    gap: 60px;
    margin-bottom: 80px;
}
.flex-item {
    flex: 1;
    display: flex;
    flex-direction: column;
}
.breadcrumb {
    font-size: 14px;
    color: #666;
    margin-bottom: 40px;
}
.hero {
    margin-bottom: 60px;
    background-image: linear-gradient(rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.95)), url('/and-do/ir/images/library/hero_ir_background.jpg');
    background-size: cover;
    background-position: center;
    padding: 60px 40px;
    border-radius: 8px;
}
.hero h1 {
    font-size: 32px;
    margin: 0 0 10px;
    color: #333;
}
.hero p {
    font-size: 16px;
    color: #666;
    margin: 0;
}

.section-header {
    font-size: 24px;
    font-weight: bold;
    color: #003C6D;
    border-bottom: 1px solid #A7BCD6;
    padding-bottom: 15px;
    margin-bottom: 30px;
    display: flex;
    align-items: baseline;
    gap: 15px;
}
.section-header span {
    font-size: 14px;
    font-weight: normal;
    color: #AAAAAA;
}

.pdf-list {
    list-style: none;
    padding: 0;
    margin: 0 0 30px 0;
}
.pdf-list li {
    margin-bottom: 25px;
    color: #666;
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.pdf-list li .pdf-title {
    text-decoration: underline !important;
    color: #333 !important;
    cursor: pointer;
    transition: color 0.2s ease;
}
.pdf-list li .pdf-title:hover {
    color: #004680 !important;
}
.pdf-list li .pdf-meta {
    font-size: 14px;
    color: #999;
}

.pdf-list li a.pdf-title[href$=".pdf"]::before {
  content: "";
  display: inline-block;
  width: 2.6em;
  height: 2em;
  margin-right: 0.3em;
  vertical-align: -0.15em;
  background: url("/and-do/images/common/icon-pdf.gif") no-repeat center / contain;
}
.button-group {
    display: flex;
    justify-content: flex-start;
    gap: 12px;
    margin-top: auto;
}
.wf-button {
    box-sizing: border-box;
    flex: 1 1 0;
    min-width: 0;
    width: auto;
    max-width: 360px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #004680;
    border-radius: 50px;
    padding: 14px 18px;
    text-align: center;
    font-size: 14px;
    line-height: 1.35;
    font-weight: 700;
    white-space: nowrap;
    color: #004680;
    background-color: #fff;
    cursor: pointer;
    transition: opacity 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}
.wf-button:hover {
    background-color: #004680;
    color: #fff !important;
    opacity: 0.8;
}

.video-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #333;
}
.video-wrapper {
    width: 100%;
    aspect-ratio: 16 / 9;
    margin-bottom: 20px;
}
.video-wrapper iframe {
    width: 100%;
    height: 100%;
    border-radius: 4px;
}
.transcript-link {
    border: 1px solid #A7BCD6;
    padding: 15px;
    text-align: center;
    font-size: 14px;
    color: #003C6D;
    margin-top: auto;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
.transcript-link:hover {
    background-color: #EDF2F7;
    color: #333;
}

.tab-area {
    background-color: #F7F7F7;
    padding: 48px;
    margin-bottom: 80px;
}
.tabs {
    display: flex;
    border-bottom: 2px solid #A7BCD6;
    margin-bottom: 30px;
}
.tab-active, .tab {
    flex: 1;
    text-align: center;
    padding: 12px 20px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}
.tab-active {
    background-color: #004680;
    color: #fff;
    font-weight: bold;
    border: 1px solid #004680;
}
.tab {
    background-color: #fff;
    border: 1px solid #A7BCD6;
    border-bottom: none;
    color: #003C6D;
}
.tab:hover {
    background-color: #EDF2F7;
}

.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}
.tab-content select {
    padding: 10px 15px;
    border: 1px solid #A7BCD6;
    margin-bottom: 30px;
    color: #333;
    font-size: 16px;
}
.tab-content h3 {
    font-size: 20px;
    margin: 0 0 25px 0;
    color: #003C6D;
}
/* 期（年度）コンテンツの初期状態は非表示 */
.period-content {
    display: none;
}

/* is-active クラスがついている期だけを表示する */
.period-content.is-active {
    display: block;
}

.report-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.report-list li a{
    display: flex;
    padding: 25px 10px;
    border-bottom: 1px solid #DCE4EF;
    color: #666;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
.report-list li a:hover {
    background-color: #EDF2F7;
}
.report-date {
    width: 100px;
    font-size: 14px;
}
.report-title {
    flex: 1;
    font-weight: bold;
    color: #202020;
    font-size: 16px;
    padding-right: 20px;
    text-decoration: underline transparent;
    transition: text-decoration 0.2s ease;
}
.report-list li:hover .report-title {
    text-decoration: underline;
    color: #004680;
}
.empty-message {
    margin: 0;
    padding: 24px 10px;
    border-top: 1px solid #DCE4EF;
    border-bottom: 1px solid #DCE4EF;
    color: #5a5a5a;
}
.report-size {
    width: 100px;
    text-align: right;
    font-size: 14px;
}
.report-list li:has(a[href$=".pdf"]) .report-size::before {
  content: "";
  display: inline-block;
  width: 2.6em;
  height: 2em;
  margin-right: 0.35em;
  vertical-align: -0.15em;
  background: url("/and-do/images/common/icon-pdf.gif") no-repeat center / contain;
}
.card-container {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    margin-bottom: 80px;
}
.card {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    cursor: default;
    border: 1px solid #DCE4EF;
    padding-bottom: 15px;
    border-radius: 8px;
    transition: all 0.3s ease;
    background-color: #fff;
    overflow: hidden;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,70,128,0.08);
    border-color: #004680;
}
.card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 20px;
}
.card-title {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex: 0 0 48px;
    min-height: 48px;
    box-sizing: border-box;
    font-weight: bold;
    color: #003C6D;
    font-size: 16px;
    line-height: 1.5;
    padding: 0 20px 16px;
}
.card-title-link {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    width: 100%;
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}
.card-title-link:hover {
    color: #004680;
}
.card-list {
    margin: 0;
    padding: 0 24px 10px 38px;
    color: #333;
    font-size: 15px;
    line-height: 1.75;
}
.card-list li {
    margin-bottom: 6px;
}
.card-list a {
    color: #333;
    text-decoration: none;
    transition: color 0.2s ease;
}
.card-list a:hover {
    color: #004680;
}
.card-list .is-disabled {
    color: #777;
}
.arrow-icon {
    border: 1px solid #A7BCD6;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #004680;
    flex: 0 0 auto;
}
.arrow-icon.is-chevron::after {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  background-color: currentColor;
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M5 1L4 2l6 6-6 6 1 1 7-7-7-7z'/%3E%3C/svg%3E");
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: contain;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M5 1L4 2l6 6-6 6 1 1 7-7-7-7z'/%3E%3C/svg%3E");
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  -webkit-mask-size: contain;
}
/* レスポンシブ対応 */
@media (max-width: 768px) {
    .flex-container {
        flex-direction: column;
        gap: 20px;
    }
    .button-group {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .wf-button {
        flex: none;
        width: 100%;
        max-width: none;
        font-size: 16px;
        white-space: normal;
    }
    .wf-button:hover {
        background-color: #004680;
        color: #fff !important;
        opacity: 0.8;
    }
    .tab-area {
        padding: 20px;
    }
    .tabs {
        flex-direction: column;
    }
    .tab, .tab-active {
        border: 1px solid #A7BCD6;
        border-bottom: none;
    }
    .tab:last-child {
        border-bottom: 1px solid #A7BCD6;
    }
    .report-list li a {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .report-size {
        text-align: left;
    }
    .card-container {
        grid-template-columns: 1fr;
        gap: 36px;
    }
}