.page-about {
  --about-spring: #3AA899;
  --about-summer: #2B7A5E;
  --about-autumn: #D4AF37;
  --about-winter: #F2D276;
  --about-card-bg: linear-gradient(145deg, rgba(20, 92, 67, 0.82), rgba(11, 61, 46, 0.92));
  --about-line: rgba(212, 175, 55, 0.22);
}

.page-about .breadcrumb {
  margin: 0 auto;
  max-width: var(--container-max);
  padding: 18px var(--gap) 0;
}

.page-about .about-hero {
  position: relative;
  padding: 48px var(--gap) 32px;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "Story";
  position: absolute;
  top: 20px;
  right: -10px;
  font-family: var(--font-serif);
  font-size: clamp(72px, 14vw, 180px);
  line-height: 1;
  color: rgba(212, 175, 55, 0.05);
  z-index: 0;
  pointer-events: none;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.page-about .about-hero__copy h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 5.4vw, 56px);
  line-height: 1.18;
  letter-spacing: 0.02em;
  margin: 16px 0 20px;
  max-width: 14em;
}

.page-about .about-hero__lead {
  font-size: 18px;
  line-height: 1.75;
  color: var(--text-regular);
  max-width: 40em;
  margin-bottom: 32px;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .about-hero__emblem {
  display: none;
}

.page-about .about-hero__stats {
  max-width: var(--container-max);
  margin: 48px auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  border-top: 1px solid var(--line-soft);
  padding-top: 24px;
}

.page-about .about-stat {
  background: rgba(20, 92, 67, 0.55);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.page-about .about-stat:hover {
  border-color: rgba(212, 175, 55, 0.45);
  transform: translateY(-2px);
}

.page-about .about-stat__num {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.1;
}

.page-about .about-stat__label {
  font-size: 14px;
  color: var(--warm-gray);
}

.page-about .about-timeline {
  padding-top: 64px;
  padding-bottom: 72px;
}

.page-about .timeline-figure {
  margin: 40px auto 48px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--line-soft);
  max-width: 900px;
}

.page-about .timeline-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 32px;
}

.page-about .timeline-list::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--about-spring) 0%, var(--about-summer) 35%, var(--about-autumn) 70%, var(--about-winter) 100%);
  border-radius: 2px;
}

.page-about .timeline-item {
  position: relative;
  padding-left: 42px;
}

.page-about .timeline-item__dot {
  position: absolute;
  left: 2px;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--forest-green);
  border: 3px solid var(--gold);
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.12);
}

.page-about .timeline-item--2020 .timeline-item__dot {
  border-color: var(--about-spring);
}

.page-about .timeline-item--2022 .timeline-item__dot {
  border-color: var(--about-summer);
}

.page-about .timeline-item--2024 .timeline-item__dot {
  border-color: var(--about-autumn);
}

.page-about .timeline-item--now .timeline-item__dot {
  border-color: var(--about-winter);
  box-shadow: 0 0 0 4px rgba(242, 210, 118, 0.2);
}

.page-about .timeline-item__year {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.2;
  margin-bottom: 8px;
}

.page-about .timeline-item__card {
  background: var(--about-card-bg);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.page-about .timeline-item__card:hover,
.page-about .timeline-item__card:focus-within {
  border-color: rgba(212, 175, 55, 0.5);
  transform: translateX(4px);
}

.page-about .timeline-item__card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin: 10px 0 6px;
  color: var(--ivory);
}

.page-about .timeline-item__card p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--warm-gray);
  margin: 0;
}

.page-about .about-philosophy {
  padding-top: 72px;
  padding-bottom: 72px;
  border-block: 1px solid var(--line-soft);
  background:
    radial-gradient(ellipse at 20% 80%, rgba(58, 168, 153, 0.06), transparent 60%),
    radial-gradient(ellipse at 90% 20%, rgba(212, 175, 55, 0.05), transparent 50%);
}

.page-about .about-philosophy__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.page-about .about-philosophy__copy .section-lead {
  max-width: 32em;
}

.page-about .philosophy-list {
  margin-top: 32px;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .philosophy-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .philosophy-item__season {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  border: 2px solid;
}

.page-about .philosophy-item__season--spring {
  color: var(--about-spring);
  border-color: rgba(58, 168, 153, 0.5);
  background: rgba(58, 168, 153, 0.08);
}

.page-about .philosophy-item__season--summer {
  color: var(--about-summer);
  border-color: rgba(43, 122, 94, 0.5);
  background: rgba(43, 122, 94, 0.08);
}

.page-about .philosophy-item__season--autumn {
  color: var(--about-autumn);
  border-color: rgba(212, 175, 55, 0.5);
  background: rgba(212, 175, 55, 0.08);
}

.page-about .philosophy-item__season--winter {
  color: var(--about-winter);
  border-color: rgba(242, 210, 118, 0.5);
  background: rgba(242, 210, 118, 0.08);
}

.page-about .philosophy-item h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  margin: 0 0 4px;
  color: var(--ivory);
}

.page-about .philosophy-item p {
  font-size: 15px;
  margin: 0;
  color: var(--warm-gray);
  line-height: 1.7;
}

.page-about .about-philosophy__figure {
  order: -1;
}

.page-about .about-philosophy__figure .figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow-soft);
}

.page-about .about-region {
  padding-top: 72px;
  padding-bottom: 72px;
}

.page-about .about-region__intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 40px;
}

.page-about .about-region__desc {
  font-size: 16px;
  line-height: 1.75;
  color: var(--warm-gray);
  max-width: 38em;
  margin: 0;
}

.page-about .about-region__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-about .about-region__figure .figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow-soft);
}

.page-about .about-region__panel {
  background: var(--about-card-bg);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.page-about .region-panel__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.page-about .region-panel__note {
  font-size: 14px;
  color: var(--warm-gray);
}

.page-about .region-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.page-about .region-list__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(11, 61, 46, 0.6);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.page-about .region-list__item.is-active {
  border-color: rgba(212, 175, 55, 0.5);
  background: rgba(212, 175, 55, 0.08);
}

.page-about .region-btn {
  appearance: none;
  background: transparent;
  border: 0;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  color: var(--ivory);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.page-about .region-btn:hover {
  color: var(--light-gold);
}

.page-about .region-btn__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--moss-green);
  transition: background var(--transition-fast);
}

.page-about .region-list__item.is-active .region-btn__dot {
  background: var(--jade);
  box-shadow: 0 0 0 3px rgba(58, 168, 153, 0.2);
}

.page-about .region-btn__detail {
  font-size: 14px;
  color: var(--warm-gray);
  white-space: nowrap;
}

.page-about .region-panel__foot {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.7;
  color: var(--warm-gray);
}

.page-about .about-honor {
  background: linear-gradient(180deg, var(--ivory) 0%, #EDE4D2 100%);
  color: var(--ink);
  padding-top: 72px;
  padding-bottom: 72px;
}

.page-about .about-honor .section-eyebrow {
  color: var(--forest-green);
}

.page-about .about-honor .section-title {
  color: var(--ink);
}

.page-about .about-honor .section-lead {
  color: rgba(10, 11, 10, 0.7);
}

.page-about .honor-stack {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 40px;
  position: relative;
}

.page-about .honor-card {
  background: rgba(247, 242, 233, 0.92);
  border: 2px solid rgba(11, 61, 46, 0.25);
  border-radius: var(--radius-md);
  padding: 24px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  position: relative;
  box-shadow: 6px 6px 0 rgba(11, 61, 46, 0.08);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.page-about .honor-card:hover {
  transform: translateY(-4px);
  box-shadow: 10px 10px 0 rgba(212, 175, 55, 0.18);
  border-color: rgba(212, 175, 55, 0.55);
}

.page-about .honor-card__index {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  color: rgba(11, 61, 46, 0.18);
}

.page-about .honor-card__body h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin: 8px 0 6px;
  color: var(--ink);
}

.page-about .honor-card__body p {
  font-size: 15px;
  line-height: 1.7;
  margin: 0;
  color: rgba(10, 11, 10, 0.78);
}

.page-about .about-honor .honor-card .tag {
  background: rgba(11, 61, 46, 0.08);
  color: var(--forest-green);
}

.page-about .about-honor .honor-card .tag::before {
  background: var(--gold);
}

.page-about .about-entry {
  padding-top: 72px;
  padding-bottom: 72px;
}

.page-about .about-entry__inner {
  background:
    linear-gradient(135deg, rgba(11, 61, 46, 0.95), rgba(20, 92, 67, 0.85)),
    repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(212, 175, 55, 0.04) 12px, rgba(212, 175, 55, 0.04) 14px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 40px var(--gap);
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  position: relative;
  overflow: hidden;
}

.page-about .about-entry__inner::after {
  content: "四季";
  position: absolute;
  right: -20px;
  bottom: -30px;
  font-family: var(--font-serif);
  font-size: 120px;
  font-weight: 700;
  color: rgba(212, 175, 55, 0.06);
  pointer-events: none;
  line-height: 1;
}

.page-about .about-entry__copy {
  position: relative;
  z-index: 1;
}

.page-about .about-entry__copy h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  line-height: 1.3;
  margin: 12px 0 10px;
}

.page-about .about-entry__copy p {
  font-size: 16px;
  color: var(--warm-gray);
  max-width: 36em;
  margin: 0;
}

.page-about .about-entry__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  position: relative;
  z-index: 1;
  align-items: center;
}

@media (min-width: 768px) {
  .page-about .about-hero {
    padding-top: 72px;
    padding-bottom: 40px;
  }

  .page-about .about-hero__inner {
    grid-template-columns: 1.4fr 0.6fr;
  }

  .page-about .about-hero__emblem {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    aspect-ratio: 1 / 1;
    max-width: 340px;
    justify-self: center;
    width: 100%;
  }

  .page-about .about-hero__emblem-word {
    font-family: var(--font-serif);
    font-size: clamp(96px, 10vw, 148px);
    font-weight: 700;
    color: rgba(212, 175, 55, 0.14);
    line-height: 1;
    z-index: 1;
  }

  .page-about .about-hero__emblem-num {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 700;
    color: var(--gold);
    position: absolute;
    top: 14%;
    right: 14%;
    z-index: 2;
  }

  .page-about .about-hero__emblem-tag {
    font-size: 14px;
    letter-spacing: 0.18em;
    color: var(--warm-gray);
    margin-top: -4px;
    z-index: 1;
    background: rgba(11, 61, 46, 0.7);
    padding: 4px 14px;
    border-radius: 999px;
    border: 1px solid var(--line-soft);
  }

  .page-about .about-hero__emblem-ring {
    position: absolute;
    inset: 6%;
    border-radius: 50%;
    border: 1px dashed rgba(212, 175, 55, 0.3);
    animation: about-rotate 60s linear infinite;
  }

  .page-about .about-hero__emblem-ring::before {
    content: "";
    position: absolute;
    inset: 8%;
    border-radius: 50%;
    border: 1px solid rgba(212, 175, 55, 0.12);
  }

  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 56px;
  }

  .page-about .about-stat {
    padding: 22px 24px;
  }

  .page-about .about-stat__num {
    font-size: 32px;
  }

  .page-about .timeline-list {
    gap: 20px;
  }

  .page-about .timeline-item {
    padding-left: 56px;
  }

  .page-about .timeline-list::before {
    left: 15px;
  }

  .page-about .timeline-item__dot {
    left: 8px;
    width: 16px;
    height: 16px;
  }

  .page-about .timeline-item__year {
    font-size: 28px;
  }

  .page-about .timeline-item__card {
    padding: 22px 28px;
  }

  .page-about .timeline-item__card h3 {
    font-size: 22px;
  }

  .page-about .timeline-item__card p {
    font-size: 16px;
    max-width: 52em;
  }

  .page-about .about-philosophy__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
  }

  .page-about .about-philosophy__figure {
    order: 1;
  }

  .page-about .philosophy-item {
    padding: 22px 0;
  }

  .page-about .philosophy-item h3 {
    font-size: 20px;
  }

  .page-about .about-region__intro {
    grid-template-columns: 1fr 1fr;
    align-items: end;
    gap: 32px;
  }

  .page-about .about-region__layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 40px;
    align-items: stretch;
  }

  .page-about .about-region__figure {
    height: 100%;
    min-height: 420px;
  }

  .page-about .about-region__figure .figure {
    height: 100%;
    min-height: 420px;
  }

  .page-about .about-region__figure .figure img {
    height: 100%;
    object-fit: cover;
  }

  .page-about .region-list {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .page-about .region-list__item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .page-about .region-panel__foot {
    font-size: 15px;
  }

  .page-about .about-region__panel {
    padding: 28px;
  }

  .page-about .honor-stack {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 48px;
  }

  .page-about .honor-card {
    padding: 28px;
  }

  .page-about .about-entry {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .page-about .about-entry__inner {
    padding: 48px 56px;
    grid-template-columns: 1.4fr 0.6fr;
    align-items: center;
    gap: 32px;
  }

  .page-about .about-entry__inner::after {
    font-size: 160px;
  }

  .page-about .about-entry__copy h2 {
    font-size: 34px;
  }

  .page-about .about-entry__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1024px) {
  .page-about {
    --header-compensate: 0px;
  }

  .page-about .about-hero__inner {
    grid-template-columns: 1.5fr 0.5fr;
  }

  .page-about .about-hero__copy h1 {
    font-size: 56px;
  }

  .page-about .timeline-list {
    grid-template-columns: 1fr 1fr;
    gap: 16px 48px;
    position: relative;
  }

  .page-about .timeline-list::before {
    left: 50%;
    transform: translateX(-50%);
    top: 8px;
    border-radius: 0;
  }

  .page-about .timeline-item {
    padding-left: 0;
    padding-right: 0;
  }

  .page-about .timeline-item:nth-child(odd) {
    padding-right: 32px;
    text-align: right;
  }

  .page-about .timeline-item:nth-child(even) {
    padding-left: 32px;
    margin-top: 48px;
  }

  .page-about .timeline-item__dot {
    left: auto;
    right: -9px;
  }

  .page-about .timeline-item:nth-child(even) .timeline-item__dot {
    left: -9px;
    right: auto;
  }

  .page-about .timeline-item__card {
    transition: transform var(--transition), border-color var(--transition);
  }

  .page-about .timeline-item:nth-child(odd) .timeline-item__card:hover,
  .page-about .timeline-item:nth-child(odd) .timeline-item__card:focus-within {
    transform: translateX(-4px);
    border-color: rgba(212, 175, 55, 0.5);
  }

  .page-about .timeline-item:nth-child(even) .timeline-item__card:hover,
  .page-about .timeline-item:nth-child(even) .timeline-item__card:focus-within {
    transform: translateX(4px);
    border-color: rgba(212, 175, 55, 0.5);
  }

  .page-about .timeline-item--now {
    grid-column: 1 / -1;
    width: 50%;
    margin-left: auto;
    margin-right: auto;
    padding: 0 24px;
    text-align: left;
    margin-top: 16px;
  }

  .page-about .timeline-item--now .timeline-item__dot {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    top: 8px;
  }

  .page-about .timeline-item--now .timeline-item__card:hover {
    transform: translateY(-4px);
  }
}

@media (min-width: 1200px) {
  .page-about .about-region__layout {
    grid-template-columns: 0.85fr 1.15fr;
  }

  .page-about .honor-stack {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .honor-card {
    padding: 24px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  @keyframes about-rotate {
    from {
      transform: rotate(0deg);
    }
    to {
      transform: rotate(360deg);
    }
  }

  .page-about [data-reveal] {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 480ms cubic-bezier(0.22, 0.61, 0.36, 1), transform 480ms cubic-bezier(0.22, 0.61, 0.36, 1);
    transition-delay: var(--reveal-delay, 0ms);
  }

  .page-about [data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 767px) {
  .page-about .region-btn__detail {
    white-space: normal;
    text-align: right;
  }

  .page-about .region-list__item {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }

  .page-about .region-btn {
    width: 100%;
    justify-content: space-between;
  }

  .page-about .region-list__item .region-btn__detail {
    order: 3;
    text-align: left;
  }
}

.page-about {
  --reveal-delay: 0.3s;
}