.page-about {
  --about-cut: 9deg;
  --about-shadow: 6px 6px 0 rgba(10, 20, 17, .4);
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 5vw, 2.4rem) 0 clamp(2.2rem, 6vw, 3.4rem);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(30, 122, 76, .42), transparent 62%),
    var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 44%;
  left: -14%;
  width: 138%;
  height: 68px;
  background: linear-gradient(90deg, rgba(30, 122, 76, 0) 0%, rgba(30, 122, 76, .5) 26%, rgba(255, 106, 43, .26) 100%);
  transform: rotate(-9deg);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.4rem, 4vw, 2rem);
}

.page-about .about-hero__main {
  display: grid;
  gap: .8rem;
}

.page-about .about-hero__title {
  margin: .1rem 0 0;
  font-family: var(--font-body);
  font-size: clamp(1.9rem, 7.4vw, 3.4rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -.02em;
  transform: skewX(-4deg);
  transform-origin: left bottom;
  max-width: 16ch;
}

.page-about .about-hero__lede {
  max-width: 48ch;
  margin: 0;
}

.page-about .about-hero__figures {
  list-style: none;
  margin: 0;
  padding: 1rem 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .6rem;
  border-top: 1px solid var(--line);
}

.page-about .about-figure__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 6vw, 2.3rem);
  line-height: 1;
  color: var(--orange);
  letter-spacing: -.01em;
}

.page-about .about-figure__unit {
  font-size: .55em;
  vertical-align: super;
}

.page-about .about-figure__label {
  display: block;
  margin-top: .3rem;
  font-size: .72rem;
  line-height: 1.45;
  color: var(--text-soft);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-section {
  position: relative;
  padding: clamp(2.2rem, 6vw, 3.8rem) 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-band {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  margin: 0 0 1.1rem;
  padding: .42rem 1.6rem .42rem .9rem;
  background: var(--grass);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  clip-path: polygon(0 0, 100% 0, calc(100% - 16px) 100%, 0 100%);
}

.page-about .about-band__idx {
  font-weight: 700;
  color: var(--cream);
}

.page-about .about-h2 {
  margin: 0 0 .85rem;
  font-family: var(--font-body);
  font-size: clamp(1.5rem, 4.8vw, 2.4rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.01em;
  transform: skewX(-3deg);
  transform-origin: left bottom;
}

.page-about .about-h2--light {
  color: var(--paper);
}

.page-about .about-p {
  margin: 0 0 .95rem;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-about .about-p--light {
  color: rgba(245, 247, 242, .82);
}

.page-about .about-inline-link {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 43, .5);
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 图片框 ---------- */
.page-about .about-figure {
  position: relative;
  margin: 0 0 1.2rem;
  border: 1px solid var(--line-strong);
  background: var(--ink-2);
  overflow: hidden;
}

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

.page-about .about-figure__label {
  margin: 0;
  padding: .55rem .8rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  line-height: 1.5;
  color: var(--sage);
}

/* ---------- 起源 ---------- */
.page-about .about-origin__grid {
  display: grid;
  gap: 1.4rem;
  align-items: start;
}

.page-about .about-sheet {
  background: var(--cream);
  color: var(--ink);
  border: 1px solid rgba(10, 20, 17, .4);
  box-shadow: var(--about-shadow);
  padding: 1.1rem 1.15rem;
}

.page-about .about-sheet__label {
  display: block;
  margin-bottom: .4rem;
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .18em;
  color: rgba(10, 20, 17, .58);
}

.page-about .about-sheet__title {
  margin: 0 0 .35rem;
  font-size: 1.02rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--ink);
}

.page-about .about-sheet__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.72;
  color: rgba(10, 20, 17, .78);
}

.page-about .about-origin__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-about .about-origin__list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .9rem;
  line-height: 1.65;
  color: rgba(10, 20, 17, .82);
  border-bottom: 1px dashed rgba(10, 20, 17, .2);
  padding-bottom: .5rem;
}

.page-about .about-origin__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-origin__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--grass);
  transform: rotate(45deg);
}

/* ---------- 时间轴 ---------- */
.page-about .about-path__lede {
  margin-bottom: 1.2rem;
  max-width: 54ch;
}

.page-about .about-path__figure img {
  aspect-ratio: 16 / 9;
}

.page-about .about-path__body {
  display: grid;
  gap: 1.4rem;
}

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

.page-about .about-yearnav__label {
  margin: 0 0 .6rem;
  font-family: var(--font-mono);
  font-size: .64rem;
  letter-spacing: .2em;
  color: var(--sage);
  text-transform: uppercase;
}

.page-about .about-yearnav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .1rem;
}

.page-about .about-yearnav__link {
  display: block;
  padding: .3rem .5rem .3rem .7rem;
  border-left: 2px solid var(--line);
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: .08em;
  color: var(--text-soft);
  text-decoration: none;
  transition: color .18s ease, border-color .18s ease;
}

.page-about .about-yearnav__link:hover,
.page-about .about-yearnav__link:focus-visible {
  color: var(--orange);
  border-left-color: var(--orange);
}

.page-about .about-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-about .about-step {
  position: relative;
  padding: .9rem 0 1.1rem 1.3rem;
  border-left: 2px solid var(--line-strong);
  scroll-margin-top: 6.5rem;
}

.page-about .about-step::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 1.35rem;
  width: 12px;
  height: 12px;
  background: var(--orange);
  transform: rotate(45deg);
}

.page-about .about-step__year {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 6.6vw, 2.4rem);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--orange);
  margin-bottom: .35rem;
}

.page-about .about-step__title {
  margin: 0 0 .35rem;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}

.page-about .about-step__text {
  margin: 0 0 .7rem;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--text-soft);
}

/* 时间轴手风琴 */
.page-about .about-step .accordion__item {
  border: 0;
}

.page-about .about-step .accordion__trigger {
  display: flex;
  align-items: center;
  gap: .5rem;
  width: 100%;
  padding: .58rem .8rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  text-align: left;
  cursor: pointer;
  transition: border-color .18s ease, color .18s ease;
}

.page-about .about-step .accordion__trigger::after {
  content: "＋";
  margin-left: auto;
  color: var(--orange);
}

.page-about .about-step .accordion__trigger[aria-expanded="true"] {
  border-color: var(--orange);
  color: var(--orange);
}

.page-about .about-step .accordion__trigger[aria-expanded="true"]::after {
  content: "－";
}

.page-about .about-step .accordion__panel {
  padding: .8rem .2rem .1rem;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-about .about-step .accordion__panel p {
  margin: 0;
}

/* ---------- 值守 ---------- */
.page-about .about-editorial__grid {
  display: grid;
  gap: 1.3rem;
  align-items: start;
}

.page-about .about-editorial__figure img {
  aspect-ratio: 3 / 2;
}

.page-about .about-editorial__cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .7rem;
  margin-top: 1.4rem;
}

.page-about .about-mini {
  padding: .85rem .9rem 1rem;
  background: var(--ink-2);
  border-top: 3px solid var(--grass);
}

.page-about .about-mini__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 5.4vw, 2rem);
  line-height: 1;
  color: var(--orange);
}

.page-about .about-mini__unit {
  font-size: .52em;
  margin-left: .1em;
}

.page-about .about-mini__text {
  margin: .45rem 0 0;
  font-size: .82rem;
  line-height: 1.6;
  color: var(--text-soft);
}

/* ---------- 区域 ---------- */
.page-about .about-region__grid {
  display: grid;
  gap: 1.4rem;
  align-items: start;
}

.page-about .about-region__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .8rem;
  margin: 1.2rem 0 1.1rem;
}

.page-about .about-stat {
  padding-left: .8rem;
  border-left: 2px solid var(--grass-lit);
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 5.2vw, 1.95rem);
  line-height: 1;
  color: var(--paper);
}

.page-about .about-stat__unit {
  font-size: .5em;
  margin-left: .12em;
  color: var(--orange);
}

.page-about .about-stat__label {
  display: block;
  margin-top: .35rem;
  font-size: .76rem;
  line-height: 1.5;
  color: var(--sage);
}

.page-about .about-region__note {
  margin: 0;
  padding: .8rem .9rem;
  background: rgba(30, 122, 76, .16);
  border-left: 3px solid var(--orange);
  font-size: .88rem;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-about .about-region__figure img {
  aspect-ratio: 9 / 11;
}

/* ---------- 合作 ---------- */
.page-about .about-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
  margin: 1.2rem 0 0;
}

.page-about .about-tag {
  padding: .48rem .8rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--text-soft);
  background: var(--ink-2);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.page-about .about-tag--lg {
  font-size: .88rem;
  padding: .62rem 1.05rem;
  color: var(--paper);
  background: var(--grass);
  border-color: transparent;
}

.page-about .about-tag--warm {
  color: var(--orange);
  background: transparent;
  border-color: rgba(255, 106, 43, .6);
}

.page-about .about-partners__note {
  margin: 1.1rem 0 0;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--sage);
  max-width: 58ch;
}

.page-about .about-partners__note .about-inline-link {
  color: var(--orange);
}

/* ---------- 工作方式 ---------- */
.page-about .about-flow {
  display: grid;
  gap: .8rem;
  margin: 1.2rem 0 0;
}

.page-about .about-flow__item {
  padding: 1rem 1.05rem 1.1rem;
  background: var(--ink-2);
  border-top: 3px solid var(--grass);
}

.page-about .about-flow__item:nth-child(2) {
  border-top-color: var(--orange);
}

.page-about .about-flow__item:nth-child(3) {
  border-top-color: var(--yellow);
}

.page-about .about-flow__idx {
  display: block;
  margin-bottom: .45rem;
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .18em;
  color: var(--sage);
}

.page-about .about-flow__title {
  margin: 0 0 .35rem;
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--paper);
}

.page-about .about-flow__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--text-soft);
}

.page-about .about-workflow__note {
  margin: 1.2rem 0 0;
  padding: .75rem .9rem;
  border-left: 3px solid var(--grass-lit);
  background: rgba(18, 33, 26, .9);
  font-size: .88rem;
  line-height: 1.7;
  color: var(--sage);
  max-width: 62ch;
}

/* ---------- 收束 ---------- */
.page-about .about-cta {
  padding: clamp(2.2rem, 6vw, 3.6rem) 0 clamp(2.4rem, 6.5vw, 4rem);
  background:
    linear-gradient(128deg, rgba(30, 122, 76, .34) 0%, rgba(10, 20, 17, .94) 58%),
    var(--ink-2);
}

.page-about .about-cta__inner {
  display: grid;
  gap: 1.3rem;
  align-items: start;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  align-items: center;
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  width: 100%;
  margin-top: .35rem;
  font-size: .84rem;
  color: var(--sage);
}

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

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

@media (min-width: 860px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    align-items: end;
    column-gap: 2.4rem;
  }

  .page-about .about-hero__figures {
    grid-template-columns: 1fr;
    gap: .9rem;
    padding: 0 0 0 1.4rem;
    border-top: 0;
    border-left: 1px solid var(--line);
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 2.4rem;
  }

  .page-about .about-path__figure img {
    aspect-ratio: 2 / 1;
  }

  .page-about .about-path__body {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 2.4rem;
  }

  .page-about .about-yearnav {
    display: block;
    position: sticky;
    top: 7rem;
  }

  .page-about .about-step {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr);
    column-gap: 1.5rem;
    padding-left: 1.8rem;
  }

  .page-about .about-step__year {
    margin-bottom: 0;
  }

  .page-about .about-editorial__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 2.2rem;
  }

  .page-about .about-region__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 2.4rem;
    align-items: center;
  }

  .page-about .about-flow {
    grid-template-columns: 1.12fr .92fr 1.12fr;
    gap: 1rem;
  }

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 2.2rem;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .page-about .about-hero::before {
    height: 84px;
  }

  .page-about .about-editorial__figure {
    margin-bottom: 0;
  }

  .page-about .about-region__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__title,
  .page-about .about-h2 {
    transform: none;
  }

  .page-about .about-yearnav__link,
  .page-about .about-step .accordion__trigger {
    transition: none;
  }
}
<<<END>>>