.page-about {
  --about-pad: clamp(1.25rem, 4vw, 3.5rem);
  --about-block: clamp(3.5rem, 8vw, 6.5rem);
  position: relative;
  max-width: calc(var(--max-width) + 2rem);
  margin-inline: auto;
  padding: 1.25rem var(--about-pad) 4rem;
  color: var(--text);
  background-color: var(--bg);
}

.page-about::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, rgba(160, 176, 208, 0.028) 0, rgba(160, 176, 208, 0.028) 1px, transparent 1px, transparent 4px),
    repeating-linear-gradient(90deg, rgba(160, 176, 208, 0.016) 0, rgba(160, 176, 208, 0.016) 1px, transparent 1px, transparent 5px);
}

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

.page-about .about-hero {
  display: grid;
  gap: 2rem;
  margin-bottom: var(--about-block);
  align-items: center;
}

.page-about .about-hero__copy {
  max-width: 660px;
}

.page-about .about-hero__copy h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  line-height: 1.08;
  margin: 0.85rem 0 0.6rem;
  letter-spacing: 0.01em;
  border-left: 6px solid var(--accent-2);
  padding-left: 0.55em;
}

.page-about .about-hero__subtitle {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.8vw, 1.5rem);
  color: var(--accent);
  letter-spacing: 0.04em;
  text-shadow: 0 0 18px rgba(57, 255, 20, 0.35);
}

.page-about .about-hero__lead {
  margin-top: 1rem;
  color: var(--text-dim);
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.85;
  max-width: 46em;
}

.page-about .about-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  padding: 0.5rem;
  max-width: 800px;
  border-radius: 2px 14px 14px 2px;
  box-shadow: var(--shadow);
}

.page-about .about-hero__media img {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(1.1) contrast(1.05);
}

.page-about .about-index {
  margin-bottom: 2rem;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  padding: 1.25rem 1.25rem 1.15rem;
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
}

.page-about .about-index__label {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin: 0 0 0.8rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}

.page-about .about-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.1rem;
}

.page-about .about-index__list a {
  display: inline-block;
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.35em 0.1em;
  border-bottom: 2px solid transparent;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-about .about-index__list a:hover,
.page-about .about-index__list a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
  outline: none;
}

.page-about .about-index__note {
  margin: 0.8rem 0 0;
  font-size: 0.85rem;
  color: var(--text-faint);
  line-height: 1.5;
}

.page-about .about-chapter {
  position: relative;
  margin-bottom: var(--about-block);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: linear-gradient(180deg, rgba(16, 26, 58, 0.78), rgba(16, 26, 58, 0.4));
  border: 1px solid var(--border);
  border-radius: 0 16px 16px 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  overflow: hidden;
}

.page-about .about-chapter::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: clamp(100px, 28vw, 260px);
  height: 3px;
  background: linear-gradient(90deg, var(--accent-2), transparent);
}

.page-about .about-chapter__head {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 0.6rem;
}

.page-about .about-chapter__num {
  flex: 0 0 auto;
  display: inline-block;
  background: var(--accent-2);
  color: var(--text);
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  padding: 0.45em 0.8em 0.45em 1em;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 100%, 12px 100%);
}

.page-about .about-chapter h2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  letter-spacing: 0.02em;
  margin: 0;
}

.page-about .about-chapter__lead {
  margin: 0.75rem 0 1.75rem;
  color: var(--text-dim);
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.8;
  max-width: 58em;
}

.page-about .about-milestones__chart {
  width: 100%;
  height: auto;
  display: block;
  margin: 1.5rem 0 2rem;
  background: rgba(10, 17, 40, 0.35);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.25rem;
}

.page-about .about-milestones__grid line {
  stroke: var(--border);
  stroke-width: 1;
  stroke-dasharray: 3 5;
}

.page-about .about-milestones__area {
  fill: url(#aboutGrowthFill);
}

.page-about .about-milestones__line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-about .about-milestones__dots circle {
  fill: var(--bg);
  stroke: var(--accent);
  stroke-width: 2;
  transition: r 0.2s var(--ease);
}

.page-about .about-milestones__chart:hover .about-milestones__dots circle {
  r: 6;
}

.page-about .about-milestones__years text {
  fill: var(--text-dim);
  font-family: var(--font-num);
  font-size: 13px;
  text-anchor: start;
  letter-spacing: 0.04em;
}

.page-about .about-milestones__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-about .about-milestones__item {
  position: relative;
  padding: 1rem 1.15rem 1rem 1.35rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-left-color: var(--accent-2);
  border-radius: 0 8px 8px 0;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-about .about-milestones__item:hover,
.page-about .about-milestones__item:focus-within {
  transform: translateX(4px);
  border-left-color: var(--accent);
  background: rgba(24, 35, 70, 0.9);
}

.page-about .about-milestones__item h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.3rem;
  color: var(--text);
  letter-spacing: 0.03em;
}

.page-about .about-milestones__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-about .about-philosophy__grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2rem;
}

.page-about .about-philosophy__card {
  position: relative;
  padding: 2rem 1.5rem 1.75rem;
  background: linear-gradient(160deg, var(--bg-elevated), var(--bg-panel));
  border: 1px solid var(--border);
  border-radius: 0 14px 14px;
  overflow: hidden;
}

.page-about .about-philosophy__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), transparent);
}

.page-about .about-philosophy__index {
  display: block;
  font-family: var(--font-num);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.6rem;
  letter-spacing: 0.08em;
}

.page-about .about-philosophy__card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin: 0 0 0.55rem;
  color: var(--text);
}

.page-about .about-philosophy__card p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-about .about-local__grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 1rem;
}

.page-about .about-local__list {
  list-style: none;
  margin: 0 0 1.3rem;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-about .about-local__list li {
  position: relative;
  padding-left: 1.4rem;
  color: var(--text-dim);
  line-height: 1.7;
  font-size: 0.98rem;
}

.page-about .about-local__list li::before {
  content: "▮";
  position: absolute;
  left: 0;
  top: 0.45em;
  color: var(--accent-2);
  font-size: 0.7rem;
}

.page-about .about-local__note {
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1rem;
  background: rgba(57, 255, 20, 0.06);
  color: var(--text);
  font-size: 0.92rem;
  line-height: 1.75;
  border-radius: 0 8px 8px 0;
}

.page-about .about-local__media {
  margin: 0;
  border: 1px solid var(--border);
  padding: 0.5rem;
  background: var(--bg-elevated);
  border-radius: 2px 12px 12px 2px;
}

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

.page-about .about-local__media figcaption {
  margin-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-faint);
  line-height: 1.55;
  padding: 0 0.25rem;
}

.page-about .about-data__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.8rem;
  margin: 1.8rem 0 2rem;
}

.page-about .about-data__stat {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  border-radius: 10px;
  padding: 1.25rem 1rem 1.1rem;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-about .about-data__stat:hover,
.page-about .about-data__stat:focus-within {
  border-color: rgba(57, 255, 20, 0.45);
  background: rgba(24, 35, 70, 0.92);
}

.page-about .about-data__value {
  display: block;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  color: var(--accent);
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.page-about .about-data__desc {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.55;
}

.page-about .about-data__detail {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg-panel), transparent);
  padding: 1.5rem;
  border-radius: 0 14px 14px;
}

.page-about .about-data__detail h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin: 0 0 0.6rem;
}

.page-about .about-data__detail p {
  font-size: 0.96rem;
  color: var(--text-dim);
  line-height: 1.75;
  margin: 0 0 1rem;
}

.page-about .about-data__list {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-about .about-data__list li {
  position: relative;
  padding-left: 1.6rem;
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.6;
}

.page-about .about-data__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.7em;
  height: 0.7em;
  background: var(--accent);
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

.page-about .about-data__note {
  margin-top: 1rem;
  padding: 0.8rem 1rem;
  border: 1px dashed var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text-faint);
  line-height: 1.65;
}

.page-about .about-team__grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 1rem;
}

.page-about .about-team__media {
  margin: 0;
  border: 1px solid var(--border);
  padding: 0.5rem;
  background: var(--bg-elevated);
  border-radius: 2px 12px 12px 2px;
}

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

.page-about .about-team__media figcaption {
  margin-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-faint);
  padding: 0 0.25rem;
  line-height: 1.55;
}

.page-about .about-team__list {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-about .about-team__list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0.9rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.95rem;
}

.page-about .about-team__list strong {
  font-family: var(--font-num);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.03em;
}

.page-about .about-team__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

@media (min-width: 600px) {
  .page-about .about-milestones__list {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-data__stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 860px) {
  .page-about {
    padding-top: 2.5rem;
  }

  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
    gap: clamp(2rem, 6vw, 5rem);
    padding: clamp(1rem, 4vw, 3rem) 0;
  }

  .page-about .about-layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    grid-template-areas: "index chapters";
    align-items: start;
    gap: clamp(1.5rem, 4vw, 4rem);
  }

  .page-about .about-index {
    grid-area: index;
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    margin-bottom: 0;
  }

  .page-about .about-chapters {
    grid-area: chapters;
  }

  .page-about .about-index__list {
    flex-direction: column;
    gap: 0.2rem;
  }

  .page-about .about-local__grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 460px);
    align-items: center;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(280px, 420px) minmax(0, 1fr);
    align-items: center;
    gap: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .page-about .about-philosophy__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-data__stats {
    grid-template-columns: repeat(6, 1fr);
  }
}