.page-about {
  --about-pad: clamp(52px, 7.5vw, 92px);
  --about-gap: clamp(20px, 3vw, 36px);
  background: var(--c-cream);
  color: var(--c-navy);
  font-family: var(--font-body);
}

/* ---------- 面包屑 ---------- */
.page-about .about-top {
  padding-top: clamp(16px, 2.4vw, 26px);
}
.page-about .crumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--c-mist);
}
.page-about .crumb-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.page-about .crumb-item + .crumb-item::before {
  content: "/";
  color: var(--c-line);
  margin-right: 6px;
}
.page-about .crumb-item a {
  color: var(--c-navy);
  text-decoration: none;
  border-bottom: 1px solid var(--c-line);
  transition: color .12s var(--ease), border-color .12s var(--ease);
}
.page-about .crumb-item a:hover,
.page-about .crumb-item a:focus-visible {
  color: var(--c-red);
  border-color: var(--c-red);
}
.page-about :focus-visible {
  outline: 2px solid var(--c-red);
  outline-offset: 2px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 40px) 0 clamp(40px, 6vw, 76px);
  border-bottom: 1px solid var(--c-line);
}
.page-about .about-hero::before {
  content: "01";
  position: absolute;
  top: -0.14em;
  right: -0.03em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(160px, 30vw, 330px);
  line-height: 1;
  letter-spacing: -0.07em;
  color: rgba(18, 38, 58, 0.055);
  pointer-events: none;
}
.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}
@media (min-width: 900px) {
  .page-about .about-hero-inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }
}
.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-red);
}
.page-about .about-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--c-red);
}
.page-about .about-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 20ch;
}
.page-about .about-lead {
  margin: 0 0 24px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(18, 38, 58, 0.78);
  max-width: 60ch;
}
.page-about .about-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin-bottom: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-navy);
}
.page-about .about-hero-meta .rule {
  display: inline-block;
  width: 1px;
  height: 14px;
  border: 0;
  margin: 0;
  background: var(--c-line);
}
.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-hero-media {
  margin: 0;
  border: 1px solid var(--c-line);
  background: var(--c-paper);
  overflow: hidden;
}
.page-about .about-hero-media img {
  aspect-ratio: 3 / 2;
}
.page-about .media-frame {
  display: block;
  margin: 0;
  padding: 0;
  border: 1px solid var(--c-line);
  background: var(--c-paper);
  overflow: hidden;
}
.page-about .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .media-caption {
  display: block;
  padding: 10px 12px;
  border-top: 1px solid var(--c-line);
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-mist);
}

/* ---------- 章节通用 ---------- */
.page-about .about-section {
  padding: var(--about-pad) 0;
}
.page-about .section-head {
  margin-bottom: clamp(24px, 3.6vw, 44px);
  max-width: 740px;
}
.page-about .section-num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-red);
}
.page-about .section-title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.02em;
}
.page-about .section-note {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: rgba(18, 38, 58, 0.72);
}

/* ---------- 阅读场景 ---------- */
.page-about .who-grid {
  display: grid;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}
@media (min-width: 780px) {
  .page-about .who-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.page-about .who-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--c-paper);
}
.page-about .who-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: var(--c-red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .22s var(--ease);
}
.page-about .who-card:nth-child(2)::after { background: var(--c-amber); }
.page-about .who-card:nth-child(3)::after { background: var(--c-navy); }
.page-about .who-card:hover::after,
.page-about .who-card:focus-within::after { transform: scaleX(1); }
.page-about .who-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--c-mist);
}
.page-about .who-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(17px, 2vw, 20px);
}
.page-about .who-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: rgba(18, 38, 58, 0.74);
}
.page-about .who-link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 2px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-red);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 69, 44, 0.35);
  transition: color .12s var(--ease), border-color .12s var(--ease);
}
.page-about .who-link:hover,
.page-about .who-link:focus-visible {
  color: var(--c-red-deep);
  border-color: var(--c-red-deep);
}

/* ---------- 发展历程 ---------- */
.page-about .about-timeline-grid {
  display: grid;
  gap: clamp(18px, 3vw, 40px);
}
@media (min-width: 960px) {
  .page-about .about-timeline-grid {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: start;
  }
}
.page-about .year-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
}
@media (min-width: 960px) {
  .page-about .year-rail {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    position: sticky;
    top: 28px;
    align-self: start;
  }
}
.page-about .year-rail a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--c-line);
  background: var(--c-paper);
  color: var(--c-navy);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .14s var(--ease), color .14s var(--ease);
}
.page-about .year-rail a span:first-child {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
}
.page-about .year-rail a span:last-child {
  font-size: 11px;
  color: var(--c-mist);
}
.page-about .year-rail a:hover,
.page-about .year-rail a:focus-visible {
  border-color: var(--c-red);
  color: var(--c-red);
}
.page-about .year-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}
.page-about .year-card {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 32px);
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  scroll-margin-top: 96px;
}
.page-about .year-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--c-red);
}
.page-about .year-card:nth-child(2)::before { background: var(--c-amber); }
.page-about .year-card:nth-child(3)::before { background: var(--c-navy); }
.page-about .year-card:nth-child(4)::before { background: var(--c-sage); }
.page-about .year-card::after {
  content: attr(data-year);
  position: absolute;
  right: 6px;
  bottom: -16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(56px, 9vw, 108px);
  line-height: 1;
  letter-spacing: -0.05em;
  color: rgba(18, 38, 58, 0.055);
  pointer-events: none;
}
.page-about .year-tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--c-amber);
  background: rgba(217, 154, 43, 0.1);
  border: 1px solid rgba(217, 154, 43, 0.35);
}
.page-about .year-card h3 {
  position: relative;
  z-index: 1;
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(17px, 2.2vw, 22px);
}
.page-about .year-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(18, 38, 58, 0.76);
}

/* ---------- 编辑团队（深色章节） ---------- */
.page-about .about-team {
  position: relative;
  background: var(--c-navy);
  color: var(--c-cream);
}
.page-about .about-team::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}
.page-about .about-team > .container {
  position: relative;
  z-index: 1;
}
.page-about .about-team .section-num { color: var(--c-amber); }
.page-about .about-team .section-title { color: var(--c-cream); }
.page-about .about-team .section-note { color: rgba(246, 241, 231, 0.74); }

.page-about .team-grid {
  display: grid;
  gap: 1px;
  background: rgba(246, 241, 231, 0.16);
  border: 1px solid rgba(246, 241, 231, 0.16);
}
@media (min-width: 640px) {
  .page-about .team-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1100px) {
  .page-about .team-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.page-about .team-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--c-ink);
}
.page-about .team-card-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}
.page-about .team-role {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 16px;
  color: var(--c-cream);
}
.page-about .team-count {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  line-height: 1;
  color: var(--c-amber);
}
.page-about .team-count small {
  margin-left: 2px;
  font-size: 11px;
  color: rgba(246, 241, 231, 0.62);
}
.page-about .team-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(246, 241, 231, 0.74);
}

.page-about .team-lower {
  display: grid;
  gap: clamp(24px, 3.4vw, 42px);
  margin-top: clamp(28px, 4vw, 46px);
}
@media (min-width: 900px) {
  .page-about .team-lower {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }
}
.page-about .flow-title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.3;
  color: var(--c-cream);
}
.page-about .flow-lead {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.76;
  color: rgba(246, 241, 231, 0.72);
}
.page-about .flow-accordion {
  border-top: 1px solid rgba(246, 241, 231, 0.18);
  border-bottom: 1px solid rgba(246, 241, 231, 0.18);
}
.page-about .flow-accordion .accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(246, 241, 231, 0.18);
  color: var(--c-cream);
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: color .14s var(--ease);
}
.page-about .flow-accordion .accordion-trigger:hover { color: var(--c-amber); }
.page-about .flow-accordion .accordion-trigger:focus-visible {
  outline: 2px solid var(--c-amber);
  outline-offset: 2px;
}
.page-about .flow-step-no {
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--c-amber);
}
.page-about .flow-mark {
  flex: none;
  display: block;
  width: 11px;
  height: 11px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform .18s var(--ease);
}
.page-about .accordion-trigger[aria-expanded="true"] .flow-mark {
  transform: rotate(-135deg);
}
.page-about .flow-accordion .accordion-panel {
  padding: 14px 0 18px;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(246, 241, 231, 0.76);
}
.page-about .flow-accordion .accordion-panel p { margin: 0; }
.page-about .team-media {
  margin: 0;
  border: 1px solid rgba(246, 241, 231, 0.2);
  background: var(--c-ink);
}
.page-about .team-media .media-caption {
  border-top-color: rgba(246, 241, 231, 0.2);
  color: rgba(246, 241, 231, 0.62);
}

.page-about .tag-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin-top: clamp(26px, 3.6vw, 40px);
  padding: 16px 18px;
  border: 1px solid rgba(246, 241, 231, 0.18);
  background: rgba(255, 255, 255, 0.03);
}
.page-about .tag-strip-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--c-amber);
}
.page-about .tag-strip ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .tag-strip .tag {
  display: inline-block;
  padding: 3px 9px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-cream);
  background: transparent;
  border: 1px solid rgba(246, 241, 231, 0.26);
}

/* ---------- 合作生态 ---------- */
.page-about .partner-grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}
@media (min-width: 900px) {
  .page-about .partner-grid {
    grid-template-columns: 280px minmax(0, 1fr);
    align-items: start;
  }
}
.page-about .eco-block {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.page-about .eco-ring {
  width: min(260px, 70vw);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(
    var(--c-red) 0 45%,
    var(--c-amber) 45% 74%,
    var(--c-navy) 74% 100%
  );
}
.page-about .eco-ring-inner {
  width: 66%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: var(--c-cream);
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 4px;
  text-align: center;
}
.page-about .eco-num {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 4.4vw, 42px);
  line-height: 1;
  color: var(--c-navy);
}
.page-about .eco-unit {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-mist);
}
.page-about .eco-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-about .eco-legend li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: rgba(18, 38, 58, 0.78);
}
.page-about .eco-dot {
  flex: none;
  display: block;
  width: 10px;
  height: 10px;
}
.page-about .eco-dot-red { background: var(--c-red); }
.page-about .eco-dot-amber { background: var(--c-amber); }
.page-about .eco-dot-navy { background: var(--c-navy); }

.page-about .partner-intro {
  margin: 0 0 22px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(18, 38, 58, 0.78);
}
.page-about .partner-forms {
  display: grid;
  gap: 1px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}
@media (min-width: 660px) {
  .page-about .partner-forms { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.page-about .partner-form {
  padding: clamp(16px, 2.4vw, 22px);
  background: var(--c-paper);
}
.page-about .partner-form .mono {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-amber);
}
.page-about .partner-form h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 16px;
}
.page-about .partner-form p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(18, 38, 58, 0.74);
}
.page-about .partner-media { margin: 0; }

/* ---------- 覆盖规模（深色面板） ---------- */
.page-about .about-stats {
  background: var(--c-ink);
  color: var(--c-cream);
}
.page-about .about-stats .section-num { color: var(--c-amber); }
.page-about .about-stats .section-title { color: var(--c-cream); }
.page-about .about-stats .section-note { color: rgba(246, 241, 231, 0.72); }
.page-about .stat-grid {
  display: grid;
  gap: 1px;
  background: rgba(246, 241, 231, 0.16);
  border: 1px solid rgba(246, 241, 231, 0.16);
}
@media (min-width: 700px) {
  .page-about .stat-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.page-about .stat-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(22px, 3.4vw, 34px);
  background: var(--c-ink);
}
.page-about .stat-num {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(36px, 6vw, 60px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--c-cream);
}
.page-about .stat-num em {
  margin-left: 6px;
  font-style: normal;
  font-size: 0.42em;
  letter-spacing: 0;
  color: var(--c-amber);
}
.page-about .stat-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--c-amber);
}
.page-about .stat-item p {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: rgba(246, 241, 231, 0.72);
}

/* ---------- 长期项目 ---------- */
.page-about .longterm-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}
@media (min-width: 900px) {
  .page-about .longterm-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}
.page-about .longterm-head .section-title { max-width: 16ch; }
.page-about .longterm-link {
  display: inline-block;
  margin-top: 20px;
}
.page-about .longterm-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--c-line);
}
.page-about .longterm-item {
  display: grid;
  gap: 8px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-bottom: 1px solid var(--c-line);
}
@media (min-width: 560px) {
  .page-about .longterm-item {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }
}
.page-about .longterm-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-red);
}
.page-about .longterm-item h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 16px;
}
.page-about .longterm-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: rgba(18, 38, 58, 0.74);
}

/* ---------- 收尾行动区 ---------- */
.page-about .about-cta {
  padding: var(--about-pad) 0;
  border-top: 1px solid var(--c-line);
  background: linear-gradient(
    135deg,
    rgba(232, 69, 44, 0.09),
    rgba(217, 154, 43, 0.11) 48%,
    rgba(18, 38, 58, 0.07)
  );
}
.page-about .about-cta-inner {
  display: grid;
  gap: 16px;
}
.page-about .about-cta h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.18;
  letter-spacing: -0.02em;
}
.page-about .about-cta p {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(18, 38, 58, 0.78);
}
.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    animation: none !important;
  }
}

.page-about {
  --about-pad: clamp(52px, 7.5vw, 92px);
  background: var(--c-cream);
  color: var(--c-navy);
  font-family: var(--font-body);
}
.page-about .about-top { padding-top: clamp(16px, 2.4vw, 26px); }
.page-about .crumb-list { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 0; padding: 0; list-style: none; font-size: 13px; color: var(--c-mist); }
.page-about .crumb-item { display: inline-flex; align-items: center; gap: 6px; }
.page-about .crumb-item + .crumb-item::before { content: "/"; color: var(--c-line); margin-right: 6px; }
.page-about .crumb-item a { color: var(--c-navy); text-decoration: none; border-bottom: 1px solid var(--c-line); transition: color .12s var(--ease), border-color .12s var(--ease); }
.page-about .crumb-item a:hover, .page-about .crumb-item a:focus-visible { color: var(--c-red); border-color: var(--c-red); }
.page-about :focus-visible { outline: 2px solid var(--c-red); outline-offset: 2px; }

.page-about .about-hero { position: relative; overflow: hidden; padding: clamp(24px, 4vw, 40px) 0 clamp(40px, 6vw, 76px); border-bottom: 1px solid var(--c-line); }
.page-about .about-hero::before { content: "01"; position: absolute; top: -0.14em; right: -0.03em; font-family: var(--font-head); font-weight: 900; font-size: clamp(160px, 30vw, 330px); line-height: 1; letter-spacing: -0.07em; color: rgba(18, 38, 58, 0.055); pointer-events: none; }
.page-about .about-hero-inner { position: relative; z-index: 1; display: grid; gap: clamp(26px, 4vw, 52px); align-items: center; }
@media (min-width: 900px) { .page-about .about-hero-inner { grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr); } }
.page-about .about-kicker { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 16px; font-size: 12px; letter-spacing: 0.2em; color: var(--c-red); font-family: var(--font-mono); }
.page-about .about-kicker::before { content: ""; width: 28px; height: 2px; background: var(--c-red); }
.page-about .about-hero h1 { margin: 0 0 18px; max-width: 20ch; font-family: var(--font-head); font-weight: 900; font-size: clamp(30px, 5.4vw, 56px); line-height: 1.08; letter-spacing: -0.02em; }
.page-about .about-lead { margin: 0 0 24px; max-width: 60ch; font-size: clamp(15px, 1.6vw, 17px); line-height: 1.78; color: rgba(18, 38, 58, 0.78); }
.page-about .about-hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 12px; margin-bottom: 26px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; color: var(--c-navy); }
.page-about .about-hero-meta .rule { display: inline-block; width: 1px; height: 14px; border: 0; margin: 0; background: var(--c-line); }
.page-about .about-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.page-about .media-frame { display: block; margin: 0; padding: 0; border: 1px solid var(--c-line); background: var(--c-paper); overflow: hidden; }
.page-about .media-frame img { display: block; width: 100%; max-width: 100%; height: auto; object-fit: cover; }
.page-about .media-caption { display: block; padding: 10px 12px; border-top: 1px solid var(--c-line); font-size: 12px; line-height: 1.6; color: var(--c-mist); }
.page-about .about-hero-media { margin: 0; border: 1px solid var(--c-line); background: var(--c-paper); overflow: hidden; }
.page-about .about-hero-media img { aspect-ratio: 3 / 2; }

.page-about .about-section { padding: var(--about-pad) 0; }
.page-about .section-head { margin-bottom: clamp(24px, 3.6vw, 44px); max-width: 740px; }
.page-about .section-num { display: block; margin-bottom: 12px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.18em; color: var(--c-red); }
.page-about .section-title { margin: 0 0 12px; font-family: var(--font-head); font-weight: 900; font-size: clamp(24px, 3.6vw, 40px); line-height: 1.16; letter-spacing: -0.02em; }
.page-about .section-note { margin: 0; font-size: 15px; line-height: 1.76; color: rgba(18, 38, 58, 0.72); }

.page-about .who-grid { display: grid; gap: 1px; background: var(--c-line); border: 1px solid var(--c-line); }
@media (min-width: 780px) { .page-about .who-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.page-about .who-card { position: relative; display: flex; flex-direction: column; gap: 10px; padding: clamp(20px, 3vw, 30px); background: var(--c-paper); }
.page-about .who-card::after { content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px; background: var(--c-red); transform: scaleX(0); transform-origin: left; transition: transform .22s var(--ease); }
.page-about .who-card:nth-child(2)::after { background: var(--c-amber); }
.page-about .who-card:nth-child(3)::after { background: var(--c-navy); }
.page-about .who-card:hover::after, .page-about .who-card:focus-within::after { transform: scaleX(1); }
.page-about .who-num { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.14em; color: var(--c-mist); }
.page-about .who-card h3 { margin: 0; font-family: var(--font-head); font-weight: 800; font-size: clamp(17px, 2vw, 20px); }
.page-about .who-card p { margin: 0; font-size: 14.5px; line-height: 1.76; color: rgba(18, 38, 58, 0.74); }
.page-about .who-link { margin-top: auto; align-self: flex-start; padding-bottom: 2px; font-size: 13px; font-weight: 600; color: var(--c-red); text-decoration: none; border-bottom: 1px solid rgba(232, 69, 44, 0.35); transition: color .12s var(--ease), border-color .12s var(--ease); }
.page-about .who-link:hover, .page-about .who-link:focus-visible { color: var(--c-red-deep); border-color: var(--c-red-deep); }

.page-about .about-timeline-grid { display: grid; gap: clamp(18px, 3vw, 40px); }
@media (min-width: 960px) { .page-about .about-timeline-grid { grid-template-columns: 150px minmax(0, 1fr); align-items: start; } }
.page-about .year-rail { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; }
@media (min-width: 960px) { .page-about .year-rail { flex-direction: column; overflow: visible; padding-bottom: 0; position: sticky; top: 28px; align-self: start; } }
.page-about .year-rail a { display: flex; align-items: baseline; gap: 8px; padding: 8px 12px; border: 1px solid var(--c-line); background: var(--c-paper); color: var(--c-navy); text-decoration: none; white-space: nowrap; transition: border-color .14s var(--ease), color .14s var(--ease); }
.page-about .year-rail a span:first-child { font-family: var(--font-mono); font-size: 13px; font-weight: 600; letter-spacing: 0.06em; }
.page-about .year-rail a span:last-child { font-size: 11px; color: var(--c-mist); }
.page-about .year-rail a:hover, .page-about .year-rail a:focus-visible { border-color: var(--c-red); color: var(--c-red); }
.page-about .year-list { list-style: none; margin: 0; padding: 0; display: grid; gap: clamp(16px, 2.4vw, 24px); }
.page-about .year-card { position: relative; overflow: hidden; padding: clamp(20px, 3vw, 32px); background: var(--c-paper); border: 1px solid var(--c-line); scroll-margin-top: 96px; }
.page-about .year-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--c-red); }
.page-about .year-card:nth-child(2)::before { background: var(--c-amber); }
.page-about .year-card:nth-child(3)::before { background: var(--c-navy); }
.page-about .year-card:nth-child(4)::before { background: var(--c-sage); }
.page-about .year-card::after { content: attr(data-year); position: absolute; right: 6px; bottom: -16px; font-family: var(--font-head); font-weight: 900; font-size: clamp(56px, 9vw, 108px); line-height: 1; letter-spacing: -0.05em; color: rgba(18, 38, 58, 0.055); pointer-events: none; }
.page-about .year-tag { display: inline-block; margin-bottom: 12px; padding: 3px 8px; font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.14em; color: var(--c-amber); background: rgba(217, 154, 43, 0.1); border: 1px solid rgba(217, 154, 43, 0.35); }
.page-about .year-card h3 { position: relative; z-index: 1; margin: 0 0 10px; font-family: var(--font-head); font-weight: 800; font-size: clamp(17px, 2.2vw, 22px); }
.page-about .year-card p { position: relative; z-index: 1; margin: 0; max-width: 62ch; font-size: 14.5px; line-height: 1.78; color: rgba(18, 38, 58, 0.76); }

.page-about .about-team { position: relative; background: var(--c-navy); color: var(--c-cream); }
.page-about .about-team::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px); background-size: 64px 64px; pointer-events: none; }
.page-about .about-team > .container { position: relative; z-index: 1; }
.page-about .about-team .section-num { color: var(--c-amber); }
.page-about .about-team .section-title { color: var(--c-cream); }
.page-about .about-team .section-note { color: rgba(246, 241, 231, 0.74); }
.page-about .team-grid { display: grid; gap: 1px; background: rgba(246, 241, 231, 0.16); border: 1px solid rgba(246, 241, 231, 0.16); }
@media (min-width: 640px) { .page-about .team-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .page-about .team-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.page-about .team-card { display: flex; flex-direction: column; gap: 10px; padding: clamp(18px, 2.4vw, 26px); background: var(--c-ink); }
.page-about .team-card-top { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.page-about .team-role { font-family: var(--font-head); font-weight: 800; font-size: 16px; color: var(--c-cream); }
.page-about .team-count { font-family: var(--font-mono); font-size: clamp(22px, 3vw, 30px); font-weight: 600; line-height: 1; color: var(--c-amber); }
.page-about .team-count small { margin-left: 2px; font-size: 11px; color: rgba(246, 241, 231, 0.62); }
.page-about .team-card p { margin: 0; font-size: 13.5px; line-height: 1.72; color: rgba(246, 241, 231, 0.74); }
.page-about .team-lower { display: grid; gap: clamp(24px, 3.4vw, 42px); margin-top: clamp(28px, 4vw, 46px); }
@media (min-width: 900px) { .page-about .team-lower { grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr); align-items: start; } }
.page-about .flow-title { margin: 0 0 10px; font-family: var(--font-head); font-weight: 900; font-size: clamp(18px, 2.2vw, 24px); line-height: 1.3; color: var(--c-cream); }
.page-about .flow-lead { margin: 0 0 18px; font-size: 14px; line-height: 1.76; color: rgba(246, 241, 231, 0.72); }
.page-about .flow-accordion { border-top: 1px solid rgba(246, 241, 231, 0.18); border-bottom: 1px solid rgba(246, 241, 231, 0.18); }
.page-about .flow-accordion .accordion-trigger { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 0; background: transparent; border: 0; border-bottom: 1px solid rgba(246, 241, 231, 0.18); color: var(--c-cream); font-family: var(--font-body); font-size: 15.5px; font-weight: 700; text-align: left; cursor: pointer; transition: color .14s var(--ease); }
.page-about .flow-accordion .accordion-trigger:hover { color: var(--c-amber); }
.page-about .flow-accordion .accordion-trigger:focus-visible { outline: 2px solid var(--c-amber); outline-offset: 2px; }
.page-about .flow-step-no { margin-right: 10px; font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.12em; color: var(--c-amber); }
.page-about .flow-mark { flex: none; display: block; width: 11px; height: 11px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg); transition: transform .18s var(--ease); }
.page-about .accordion-trigger[aria-expanded="true"] .flow-mark { transform: rotate(-135deg); }
.page-about .flow-accordion .accordion-panel { padding: 14px 0 18px; font-size: 14px; line-height: 1.78; color: rgba(246, 241, 231, 0.76); }
.page-about .flow-accordion .accordion-panel p { margin: 0; }
.page-about .team-media { margin: 0; border: 1px solid rgba(246, 241, 231, 0.2); background: var(--c-ink); }
.page-about .team-media .media-caption { border-top-color: rgba(246, 241, 231, 0.2); color: rgba(246, 241, 231, 0.62); }
.page-about .tag-strip { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; margin-top: clamp(26px, 3.6vw, 40px); padding: 16px 18px; border: 1px solid rgba(246, 241, 231, 0.18); background: rgba(255, 255, 255, 0.03); }
.page-about .tag-strip-label { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.16em; color: var(--c-amber); }
.page-about .tag-strip ul { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.page-about .tag-strip .tag { display: inline-block; padding: 3px 9px; font-size: 12px; line-height: 1.6; color: var(--c-cream); background: transparent; border: 1px solid rgba(246, 241, 231, 0.26); }

.page-about .partner-grid { display: grid; gap: clamp(26px, 4vw, 52px); }
@media (min-width: 900px) { .page-about .partner-grid { grid-template-columns: 280px minmax(0, 1fr); align-items: start; } }
.page-about .eco-block { display: flex; flex-direction: column; gap: 20px; }
.page-about .eco-ring { width: min(260px, 70vw); aspect-ratio: 1 / 1; border-radius: 50%; display: grid; place-items: center; background: conic-gradient(var(--c-red) 0 45%, var(--c-amber) 45% 74%, var(--c-navy) 74% 100%); }
.page-about .eco-ring-inner { width: 66%; aspect-ratio: 1 / 1; border-radius: 50%; background: var(--c-cream); display: grid; place-content: center; justify-items: center; gap: 4px; text-align: center; }
.page-about .eco-num { font-family: var(--font-head); font-weight: 900; font-size: clamp(30px, 4.4vw, 42px); line-height: 1; color: var(--c-navy); }
.page-about .eco-unit { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; color: var(--c-mist); }
.page-about .eco-legend { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.page-about .eco-legend li { display: flex; align-items: center; gap: 10px; font-size: 13.5px; color: rgba(18, 38, 58, 0.78); }
.page-about .eco-dot { flex: none; display: block; width: 10px; height: 10px; }
.page-about .eco-dot-red { background: var(--c-red); }
.page-about .eco-dot-amber { background: var(--c-amber); }
.page-about .eco-dot-navy { background: var(--c-navy); }
.page-about .partner-intro { margin: 0 0 22px; max-width: 64ch; font-size: 15px; line-height: 1.8; color: rgba(18, 38, 58, 0.78); }
.page-about .partner-forms { display: grid; gap: 1px; margin: 0 0 24px; padding: 0; list-style: none; background: var(--c-line); border: 1px solid var(--c-line); }
@media (min-width: 660px) { .page-about .partner-forms { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.page-about .partner-form { padding: clamp(16px, 2.4vw, 22px); background: var(--c-paper); }
.page-about .partner-form .mono { display: block; margin-bottom: 8px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; color: var(--c-amber); }
.page-about .partner-form h3 { margin: 0 0 8px; font-family: var(--font-head); font-weight: 800; font-size: 16px; }
.page-about .partner-form p { margin: 0; font-size: 13.5px; line-height: 1.72; color: rgba(18, 38, 58, 0.74); }
.page-about .partner-media { margin: 0; }

.page-about .about-stats { background: var(--c-ink); color: var(--c-cream); }
.page-about .about-stats .section-num { color: var(--c-amber); }
.page-about .about-stats .section-title { color: var(--c-cream); }
.page-about .about-stats .section-note { color: rgba(246, 241, 231, 0.72); }
.page-about .stat-grid { display: grid; gap: 1px; background: rgba(246, 241, 231, 0.16); border: 1px solid rgba(246, 241, 231, 0.16); }
@media (min-width: 700px) { .page-about .stat-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.page-about .stat-item { display: flex; flex-direction: column; gap: 8px; padding: clamp(22px, 3.4vw, 34px); background: var(--c-ink); }
.page-about .stat-num { font-family: var(--font-head); font-weight: 900; font-size: clamp(36px, 6vw, 60px); line-height: 1; letter-spacing: -0.03em; color: var(--c-cream); }
.page-about .stat-num em { margin-left: 6px; font-style: normal; font-size: 0.42em; letter-spacing: 0; color: var(--c-amber); }
.page-about .stat-label { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.16em; color: var(--c-amber); }
.page-about .stat-item p { margin: 6px 0 0; font-size: 13.5px; line-height: 1.74; color: rgba(246, 241, 231, 0.72); }

.page-about .longterm-grid { display: grid; gap: clamp(24px, 4vw, 48px); }
@media (min-width: 900px) { .page-about .longterm-grid { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); align-items: start; } }
.page-about .longterm-head .section-title { max-width: 16ch; }
.page-about .longterm-link { display: inline-block; margin-top: 20px; }
.page-about .longterm-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--c-line); }
.page-about .longterm-item { display: grid; gap: 8px; padding: clamp(18px, 2.6vw, 26px) 0; border-bottom: 1px solid var(--c-line); }
@media (min-width: 560px) { .page-about .longterm-item { grid-template-columns: 88px minmax(0, 1fr); gap: 20px; align-items: start; } }
.page-about .longterm-tag { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.14em; color: var(--c-red); }
.page-about .longterm-item h3 { margin: 0 0 6px; font-family: var(--font-head); font-weight: 800; font-size: 16px; }
.page-about .longterm-item p { margin: 0; font-size: 14px; line-height: 1.76; color: rgba(18, 38, 58, 0.74); }

.page-about .about-cta { padding: var(--about-pad) 0; border-top: 1px solid var(--c-line); background: linear-gradient(135deg, rgba(232, 69, 44, 0.09), rgba(217, 154, 43, 0.11) 48%, rgba(18, 38, 58, 0.07)); }
.page-about .about-cta-inner { display: grid; gap: 16px; }
.page-about .about-cta h2 { margin: 0; font-family: var(--font-head); font-weight: 900; font-size: clamp(24px, 3.4vw, 36px); line-height: 1.18; letter-spacing: -0.02em; }
.page-about .about-cta p { margin: 0; max-width: 68ch; font-size: 15px; line-height: 1.78; color: rgba(18, 38, 58, 0.78); }
.page-about .about-cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; }

@media (prefers-reduced-motion: reduce) {
  .page-about *, .page-about *::before, .page-about *::after { transition: none !important; animation: none !important; }
}