.page-about {
  --about-gap: clamp(18px, 3vw, 40px);
  --about-pad: clamp(20px, 3.4vw, 40px);
  background: var(--ink-green);
  color: var(--chalk);
  overflow-x: hidden;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(22px, 4vw, 40px) 0 clamp(34px, 6vw, 72px);
  background:
    radial-gradient(120% 100% at 88% -10%, rgba(183, 241, 113, 0.16), transparent 58%),
    linear-gradient(180deg, var(--night-green), var(--ink-green) 72%);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, var(--line) 0 1px, transparent 1px 88px);
  opacity: 0.45;
  pointer-events: none;
}

.page-about .about-hero__crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(18px, 3vw, 30px);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--grid-grey);
}

.page-about .about-hero__crumb a {
  color: var(--chalk);
  text-decoration: none;
}

.page-about .about-hero__crumb a:hover,
.page-about .about-hero__crumb a:focus-visible {
  color: var(--lime);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 48px);
}

.page-about .about-hero__kicker {
  display: inline-block;
  margin: 0 0 16px;
  padding: 5px 10px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-green);
  background: var(--lime);
}

.page-about .about-hero__title {
  margin: 0 0 18px;
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-about .about-hero__lede {
  margin: 0 0 14px;
  font-size: clamp(15px, 1.8vw, 19px);
  line-height: 1.75;
  color: var(--chalk);
  max-width: 46ch;
}

.page-about .about-hero__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--grid-grey);
  max-width: 48ch;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.page-about .about-hero__statnum {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--lime);
}

.page-about .about-hero__statlabel {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--grid-grey);
}

.page-about .about-hero__fig {
  position: relative;
  margin: 0;
  aspect-ratio: 14 / 9;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}

.page-about .about-hero__fig img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.85) brightness(0.9);
}

.page-about .about-hero__fig .media__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  margin: 0;
  padding: 6px 12px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--paper-ink);
  background: var(--lime);
}

/* ---------- 主体骨架 ---------- */
.page-about .about-shell {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  padding-top: clamp(28px, 5vw, 64px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-about .about-index {
  border-top: 2px solid var(--lime);
  padding-top: 12px;
}

.page-about .about-index__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--grid-grey);
}

.page-about .about-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 3px 0;
  font-size: 13px;
  color: var(--chalk);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

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

.page-about .about-index__no {
  font-family: var(--font-num);
  font-size: 11px;
  color: var(--lime);
}

/* ---------- 章节 ---------- */
.page-about .about-chapter {
  position: relative;
  padding: var(--about-pad);
  margin-bottom: var(--about-gap);
  background: var(--panel-green);
  border-left: 3px solid var(--moss);
}

.page-about .about-chapter--paper {
  background: var(--paper);
  color: var(--paper-ink);
  border-left-color: var(--ink-green);
}

.page-about .about-chapter--paper::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42px;
  height: 42px;
  background: var(--ink-green);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .about-chapter__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-chapter--paper .about-chapter__head {
  border-bottom-color: rgba(28, 58, 44, 0.18);
}

.page-about .about-chapter__no {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--lime);
}

.page-about .about-chapter--paper .about-chapter__no {
  color: var(--moss);
}

.page-about .about-chapter__title {
  margin: 0;
  font-size: clamp(21px, 3.2vw, 36px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: inherit;
}

.page-about .about-chapter__vert {
  position: absolute;
  top: var(--about-pad);
  right: 14px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--grid-grey);
  pointer-events: none;
}

.page-about .about-chapter--paper .about-chapter__vert {
  color: rgba(28, 58, 44, 0.4);
}

.page-about .about-chapter__body {
  max-width: 64ch;
}

.page-about .about-chapter__body p {
  margin: 0 0 0.95em;
  font-size: 15px;
  line-height: 1.78;
}

.page-about .about-chapter__body p:last-child {
  margin-bottom: 0;
}

.page-about .about-chapter__body--after {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed rgba(28, 58, 44, 0.22);
}

.page-about .about-chapter__body a,
.page-about .about-chapter__tail a,
.page-about .about-collect__text a {
  color: inherit;
  text-decoration: none;
  border-bottom: 2px solid var(--lime);
  padding-bottom: 1px;
}

.page-about .about-chapter--paper .about-chapter__body a,
.page-about .about-chapter__tail a,
.page-about .about-chapter--paper .about-collect__text a {
  border-bottom-color: var(--ink-green);
}

.page-about .about-chapter__body a:hover,
.page-about .about-chapter__body a:focus-visible,
.page-about .about-chapter__tail a:hover,
.page-about .about-chapter__tail a:focus-visible,
.page-about .about-collect__text a:hover,
.page-about .about-collect__text a:focus-visible {
  color: var(--lime);
  outline: none;
}

.page-about .about-chapter--paper .about-chapter__body a:hover,
.page-about .about-chapter--paper .about-chapter__body a:focus-visible {
  color: var(--moss);
}

.page-about .about-chapter__tail {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed rgba(28, 58, 44, 0.22);
  font-size: 14px;
  line-height: 1.75;
}

/* ---------- 三类人 ---------- */
.page-about .about-who {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-who__item {
  padding: 16px 18px;
  background: rgba(7, 36, 26, 0.45);
  border-left: 2px solid var(--lime);
}

.page-about .about-who__item h3 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--lime);
}

.page-about .about-who__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--chalk);
}

/* ---------- 编辑室 ---------- */
.page-about .about-desk-wrap {
  display: grid;
  gap: 20px;
  margin-top: 18px;
}

.page-about .about-desk {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(28, 58, 44, 0.18);
}

.page-about .about-desk__row {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(28, 58, 44, 0.18);
}

.page-about .about-desk__time {
  justify-self: start;
  padding: 3px 8px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-green);
  background: rgba(183, 241, 113, 0.6);
}

.page-about .about-desk__row h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper-ink);
}

.page-about .about-desk__row p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper-ink);
}

.page-about .about-figure {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 10;
}

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

/* ---------- 时间线 ---------- */
.page-about .about-line {
  position: relative;
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-about .about-line::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 8px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--lime), rgba(159, 179, 166, 0.22));
}

.page-about .about-line__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 18px;
}

.page-about .about-line__item:last-child {
  padding-bottom: 0;
}

.page-about .about-line__dot {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
  color: var(--lime);
  background: var(--night-green);
  border: 2px solid var(--moss);
  border-radius: 50%;
}

.page-about .about-line__item--now .about-line__dot {
  color: var(--ink-green);
  background: var(--lime);
  border-color: var(--lime);
}

.page-about .about-line__panel {
  padding: 14px 16px;
  background: rgba(7, 36, 26, 0.42);
  border-left: 2px solid var(--line-strong);
}

.page-about .about-line__item--now .about-line__panel {
  border-left-color: var(--lime);
  background: rgba(183, 241, 113, 0.1);
}

.page-about .about-line__era {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--grid-grey);
}

.page-about .about-line__item--now .about-line__era {
  color: var(--lime);
}

.page-about .about-line__panel h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--chalk);
}

.page-about .about-line__panel p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--grid-grey);
}

/* ---------- 团队 ---------- */
.page-about .about-crew {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-crew__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 14px;
  padding: 14px 16px;
  background: rgba(11, 61, 46, 0.07);
  border-left: 4px solid var(--lime);
}

.page-about .about-crew__num {
  font-family: var(--font-num);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  line-height: 1;
  color: var(--ink-green);
}

.page-about .about-crew__role {
  font-size: 15px;
  font-weight: 700;
  color: var(--paper-ink);
}

.page-about .about-crew__desc {
  grid-column: 1 / -1;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper-ink);
}

/* ---------- 收藏 ---------- */
.page-about .about-collect {
  display: grid;
  gap: 22px;
  align-items: start;
}

.page-about .about-collect__text p {
  margin: 0 0 0.95em;
  font-size: 15px;
  line-height: 1.78;
}

.page-about .about-collect__note {
  margin-bottom: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-strong);
  font-size: 13.5px;
  color: var(--grid-grey);
}

.page-about .about-collect__fig {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 4;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-about .about-collect__fig img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .about-collect__fig .media__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  margin: 0;
  padding: 5px 10px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-green);
  background: var(--lime);
}

/* ---------- 荣誉 ---------- */
.page-about .about-honors {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(28, 58, 44, 0.18);
}

.page-about .about-honors__item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid rgba(28, 58, 44, 0.18);
}

.page-about .about-honors__num {
  font-family: var(--font-num);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--moss);
}

.page-about .about-honors__item h3 {
  margin: 0 0 5px;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper-ink);
}

.page-about .about-honors__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper-ink);
}

/* ---------- 结尾 ---------- */
.page-about .about-cta {
  position: relative;
  padding: clamp(30px, 5vw, 64px) 0;
  background: var(--lime);
  color: var(--ink-green);
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, rgba(11, 61, 46, 0.07) 0 2px, transparent 2px 14px);
  pointer-events: none;
}

.page-about .about-cta__inner {
  position: relative;
}

.page-about .about-cta__kicker {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-green);
  opacity: 0.75;
}

.page-about .about-cta__title {
  margin: 0 0 14px;
  max-width: 20ch;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink-green);
}

.page-about .about-cta__text {
  margin: 0 0 24px;
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-green);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

.page-about .about-cta__btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--chalk);
  background: var(--ink-green);
  border-left: 4px solid var(--night-green);
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-about .about-cta__btn:hover,
.page-about .about-cta__btn:focus-visible {
  background: var(--night-green);
  color: var(--lime);
  outline: 2px solid var(--ink-green);
  outline-offset: 2px;
}

.page-about .about-cta__link {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-green);
  text-decoration: none;
  border-bottom: 2px solid var(--ink-green);
  padding-bottom: 2px;
}

.page-about .about-cta__link:hover,
.page-about .about-cta__link:focus-visible {
  color: var(--night-green);
  outline: 2px solid var(--ink-green);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 699px) {
  .page-about .about-chapter__vert {
    display: none;
  }
}

@media (min-width: 640px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-crew {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-desk__row {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-about .about-desk-wrap {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
    gap: 26px;
  }
}

@media (min-width: 860px) {
  .page-about .about-who {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .about-who__item:nth-child(2) {
    transform: translateY(18px);
  }

  .page-about .about-line__item:nth-child(even) .about-line__panel {
    margin-left: clamp(10px, 5vw, 56px);
  }

  .page-about .about-collect {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 30px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
  }
}

@media (min-width: 960px) {
  .page-about .about-shell {
    grid-template-columns: 180px minmax(0, 1fr);
    column-gap: clamp(28px, 4vw, 64px);
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: 20px;
    align-self: start;
  }

  .page-about .about-index__list {
    flex-direction: column;
    gap: 2px;
  }

  .page-about .about-index__list a {
    display: flex;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-who__item:nth-child(2) {
    transform: none;
  }
}