:root {
  --primary-blue: #004680;
  --primary-blue-dark: #004680;
  --bg-color: #ffffff;
  --surface-color: #f8fbff;
  --text-main: #1a1a1a;
  --text-secondary: #5a5a5a;
  --accent-orange: #F3E600;
  --border-color: #eaeaea;
  --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 {
  color: var(--text-main);
  background-color: var(--bg-color);
}

#main_content a {
  color: var(--primary-blue);
  transition: var(--transition);
}

#main_content a:hover {
  opacity: 0.8;
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px 0;
}



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

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

.section.pt-half{
  padding-top: 40px;
}

.section.pt-0{
  padding-top: 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, rgba(255, 255, 255, 0.92) 0%, rgba(238, 245, 255, 0.88) 100%),
    url('/and-do/ir/images/top/hero_ir_background.jpg');
  background-position: center;
  background-size: cover;
  padding: 60px 0 50px;
  text-align: center;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary-blue);
  margin-bottom: 5px;
  letter-spacing: 0;
}

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

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

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

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

.btn-primary:hover,
.btn-primary:active {
  background-color: var(--surface-color) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0,0,0,0.15) !important;
}
.ir-section-button {
  display: inline-block;
  background-color: var(--primary-blue) !important;
  color: white !important;
}
.ir-section-button:hover,
.ir-section-button:active {
  background-color: #F3E600 !important;
  color: #004680 !important;
}

.js-reveal {
  opacity: 0;
  transform: translate3d(0, 22px, 0);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
  transition-delay: var(--reveal-delay, 0s);
}

.js-reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.js-reveal-delay-1 {
  --reveal-delay: 0.06s;
}

.js-reveal-delay-2 {
  --reveal-delay: 0.12s;
}

.js-reveal-delay-3 {
  --reveal-delay: 0.18s;
}

.js-reveal-delay-4 {
  --reveal-delay: 0.24s;
}

.js-reveal-delay-5 {
  --reveal-delay: 0.3s;
}

@media (prefers-reduced-motion: reduce) {
  .js-reveal,
  .js-reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Key Links Grid */
.grid-wrap {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  grid-auto-rows: 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

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

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

/* Card image base */
.grid-wrap .card-img {
  height: 200px;
  background-size: cover;
  background-position: center;
  background-color: #ddd;
  overflow: hidden;
  position: relative;
}

.grid-wrap .card-ceo .card-img {
  background-image: url('/and-do/ir/images/top/img_ir_card00.jpg');
}

.grid-wrap .card-materials .card-img {
  background-image: url('/and-do/ir/images/top/img_ir_card07.jpg');
}

.grid-wrap .card-plan .card-img {
  background-image: url('/and-do/ir/images/top/img_ir_card01.jpg');
}

.grid-wrap .card-governance .card-img {
  background-image: url('/and-do/ir/images/top/img_ir_card02.jpg');
}

.grid-wrap .card-about .card-img {
  background-image: url('/and-do/ir/images/top/img_ir_card03.jpg');
}

.grid-wrap .card-sustainability .card-img {
  background-image: url('/and-do/ir/images/top/img_ir_card04.jpg');
}

.grid-wrap .card-title {
  padding: 24px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-blue-dark);
  flex-grow: 1;
}

.grid-wrap .card-subtitle {
  display: block;
  margin-top: 4px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
}

/* News List */
.news-wrap {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: var(--shadow-sm);
}

.news-item {
  display: grid;
  grid-template-columns: 100px 88px minmax(0, 1fr) auto;
  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;
  text-align: center;
}
.news-title {
  font-weight: 500;
  min-width: 0;
}
.news-pdf {
  color: #A7BCD6;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 4px;
  justify-self: end;
  white-space: nowrap;
}

.news-item:has(a[href$=".pdf"]) .news-pdf::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;
}

.news-more {
  text-align: center;
  margin-top: 30px;
}

/* Calendar */
.timeline-wrap {
  margin: 40px 0;
}
.ir-calendar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 2px solid var(--primary-blue);
}
.calendar-quarter {
  min-width: 0;
  border-left: 1px solid rgba(0, 70, 128, 0.12);
}
.calendar-quarter:first-child {
  border-left: 0;
}
.calendar-quarter-head {
  padding: 14px 14px 12px;
  background: rgba(0, 70, 128, 0.08);
  color: var(--primary-blue);
}
.calendar-quarter-head span {
  font-size: 1rem;
  font-weight: 800;
}
.calendar-months {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  min-height: 154px;
}
.calendar-month {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 12px 10px 16px;
}
.calendar-month-name {
  display: block;
  color: var(--primary-blue);
  font-size: 0.86rem;
  font-weight: 800;
  text-align: center;
}
.calendar-events {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.calendar-event {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-height: 0;
  padding: 0 0 0 9px;
  border-left: 3px solid var(--primary-blue);
  background: transparent;
  color: var(--text-main);
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1.35;
  text-align: left;
}
.calendar-event-shareholders {
  border-left-color: var(--accent-orange);
  color: #1f2b39;
}
.calendar-schedule {
  margin-top: 44px;
}
.calendar-schedule h3 {
  display: inline-block;
  margin-bottom: 22px;
  padding-bottom: 16px;
  /* border-bottom: 4px solid var(--primary-blue); */
  color: var(--text-main);
  font-size: 1.5rem;
  font-weight: 800;
}
.calendar-schedule-row {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  padding: 13px 0;
  border-bottom: 1px solid #cfd9e6;
}
.calendar-schedule-row dt,
.calendar-schedule-row dd {
  color: var(--text-main);
  font-size: 0.98rem;
  line-height: 1.5;
}
.calendar-schedule-row dd {
  font-weight: 700;
}
.calendar-schedule-action {
  margin-top: 30px;
  text-align: center;
}
/* Document Library Grid */
.card-container {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  max-width: 1200px;
  margin: 0 auto 60px;
}
.card-container .library-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-container .library-card:hover,
.card-container .library-card:active {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,70,128,0.08);
  border-color: #004680;
}
.card-container .library-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 20px;
  /* opacity: 0.68; */
}
.card-container .library-card-title {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex: 0 0 48px;
  min-height: 48px;
  font-weight: bold;
  color: #004680;
  font-size: 16px;
  line-height: 1.5;
  padding: 0 20px 16px;
}
.library-card-title-link {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  width: 100%;
  color: inherit;
  transition: color 0.2s ease;
}
.library-card-title-link:hover,
.library-card-title-link:active {
  color: #004680;
}
.library-card-list {
  padding: 0 24px 10px 38px;
  color: #333;
  font-size: 15px;
  line-height: 1.75;
}
.library-card-list li {
  margin-bottom: 6px;
}
.library-card-list a {
  color: #333;
  transition: color 0.2s ease;
}
.library-card-list a:hover,
.library-card-list a:active {
  color: #004680;
}
.library-card-list .is-disabled {
  color: #777;
}

.ir-link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  max-width: 1200px;
  margin: 0 auto 80px;
}
.ir-link-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 24px;
  align-items: center;
  gap: 12px;
  /* height: 132px; */
  height:84px;
  padding: 16px;
  border: 1px solid #DCE4EF;
  border-radius: 8px;
  background: #fff;
  color: #004680;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.45;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.ir-link-card:hover,
.ir-link-card:active {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0,70,128,0.08);
  border-color: #004680;
}
.ir-link-card span:not(.arrow-icon) {
  min-width: 0;
}
.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;
}

/* =============================================
   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: 2rem !important;
    line-height: 1.25;
  }

  .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;
  }

  .card-container {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .ir-link-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .ir-link-card {
    height: 84px;
    padding: 14px;
  }

  .timeline-wrap {
    margin: 32px 0;
  }

  .ir-calendar {
    grid-template-columns: 1fr;
    gap: 22px;
    border-top: 0;
  }

  .calendar-quarter {
    border-left: 0;
    border-top: 2px solid var(--primary-blue);
  }

  .calendar-months {
    min-height: 132px;
  }

  .calendar-month {
    padding: 14px 8px;
  }

  .calendar-event {
    font-size: 0.74rem;
  }

  .calendar-schedule {
    margin-top: 34px;
  }

  .calendar-schedule h3 {
    font-size: 1.35rem;
  }

  .calendar-schedule-row {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 14px;
  }

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

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

}