.page-about {
  --ab-line: rgba(46, 33, 24, .12);
  --ab-line-soft: rgba(46, 33, 24, .07);
  --ab-gap: clamp(40px, 6vw, 84px);
  background: var(--c-cream);
  color: var(--c-date);
  font-family: var(--pg-font-sans);
  padding-top: var(--pg-header-pad);
  overflow-x: hidden;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--pg-font-serif);
  font-weight: 900;
  color: var(--c-date);
  letter-spacing: .01em;
}

.page-about h2 {
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.25;
  margin: 10px 0 14px;
}

.page-about h3 {
  font-size: 19px;
  line-height: 1.35;
  margin: 0 0 8px;
}

.page-about p {
  line-height: 1.8;
  margin: 0 0 14px;
}

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

.page-about .pg-lead {
  font-size: 16.5px;
  line-height: 1.8;
  color: rgba(46, 33, 24, .82);
  max-width: 40em;
}

.page-about .pg-note {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-stone);
}

.page-about .pg-media {
  margin: 0;
}

.page-about .pg-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--pg-radius);
  background: var(--c-dune);
  object-fit: cover;
}

.page-about .pg-media__cap {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-stone);
}

.page-about .pg-link {
  color: var(--c-lake);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-about .pg-link:hover {
  color: var(--c-poplar);
}

.page-about a:focus-visible,
.page-about button:focus-visible {
  outline: 2px solid var(--c-poplar);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 封面 ---------- */
.page-about .about-hero {
  position: relative;
  background:
    radial-gradient(120% 95% at 8% 0%, #F4CC80 0%, rgba(244, 204, 128, 0) 62%),
    linear-gradient(165deg, var(--c-sand) 0%, var(--c-dune) 100%);
  border-radius: 0 0 var(--pg-radius-lg) var(--pg-radius-lg);
  padding: 18px 0 clamp(38px, 6vw, 72px);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, rgba(46, 33, 24, .06) 0 1px, transparent 1px 72px);
  pointer-events: none;
}

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

.page-about .pg-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: .05em;
  margin-bottom: clamp(24px, 5vw, 52px);
  color: rgba(46, 33, 24, .7);
}

.page-about .pg-breadcrumb__link {
  color: rgba(46, 33, 24, .72);
  text-decoration: none;
}

.page-about .pg-breadcrumb__link:hover {
  color: var(--c-poplar);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .pg-breadcrumb__current {
  color: var(--c-date);
  font-weight: 700;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 26px;
}

.page-about .about-hero__main .pg-eyebrow {
  color: var(--c-poplar-deep);
}

.page-about .about-hero__title {
  font-family: var(--pg-font-serif);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 62px);
  line-height: 1.14;
  margin: 12px 0 18px;
  max-width: 13em;
}

.page-about .about-hero__lead {
  max-width: 34em;
  color: rgba(46, 33, 24, .84);
}

.page-about .about-hero__card {
  background: rgba(251, 246, 236, .74);
  border: 1px solid rgba(46, 33, 24, .1);
  border-radius: var(--pg-radius-lg);
  padding: 20px 22px;
  backdrop-filter: none;
}

.page-about .about-hero__card-title {
  font-size: 12px;
  letter-spacing: .08em;
  font-weight: 700;
  color: var(--c-poplar);
  margin: 0 0 12px;
}

.page-about .about-hero__facts {
  margin: 0;
}

.page-about .about-hero__fact {
  padding: 11px 0;
  border-top: 1px solid rgba(46, 33, 24, .1);
}

.page-about .about-hero__fact:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-hero__fact dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-stone);
  margin-bottom: 4px;
}

.page-about .about-hero__fact dd {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.55;
  font-variant-numeric: tabular-nums;
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .62fr);
    align-items: end;
    gap: 44px;
  }
}

/* ---------- 时间轴区 ---------- */
.page-about .about-trail__wrap {
  display: grid;
  gap: 24px;
}

.page-about .about-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 2px 10px;
  scrollbar-width: none;
}

.page-about .about-rail::-webkit-scrollbar {
  display: none;
}

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

.page-about .about-rail__link {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .06em;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--ab-line);
  color: var(--c-stone);
  text-decoration: none;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}

.page-about .about-rail__link:hover {
  background: var(--c-dune);
  color: var(--c-date);
}

.page-about .about-rail__link[aria-current="true"] {
  background: var(--c-date);
  border-color: var(--c-date);
  color: var(--c-cream);
}

.page-about .about-trail__lead {
  margin-bottom: 26px;
}

.page-about .about-tl {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  position: relative;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 16px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--c-sand-deep) 0%, rgba(232, 178, 90, .28) 100%);
}

.page-about .about-tl__item {
  position: relative;
  padding-left: 42px;
  padding-bottom: 18px;
}

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

.page-about .about-tl__item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 18px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--c-poplar);
  border: 3px solid var(--c-cream);
  box-shadow: 0 0 0 1px var(--c-poplar);
  transition: background .18s ease, box-shadow .18s ease;
}

.page-about .about-tl__card {
  background: var(--c-card);
  border: 1px solid var(--ab-line-soft);
  border-radius: var(--pg-radius);
  padding: 18px 20px;
  transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
}

.page-about .about-tl__item:hover .about-tl__card {
  background: var(--c-dune);
  box-shadow: 0 8px 20px rgba(46, 33, 24, .08);
  transform: translateY(-1px);
}

.page-about .about-tl__item:hover::before {
  background: var(--c-sand-deep);
  box-shadow: 0 0 0 1px var(--c-sand-deep), 0 0 0 6px rgba(232, 178, 90, .22);
}

.page-about .about-tl__year {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .1em;
  font-variant-numeric: tabular-nums;
  color: var(--c-cream);
  background: var(--c-poplar);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 10px;
}

.page-about .about-tl__card p {
  font-size: 15px;
  color: rgba(46, 33, 24, .82);
  margin: 0;
}

.page-about .about-trail__figure {
  margin-top: 8px;
}

@media (min-width: 1024px) {
  .page-about .about-trail__wrap {
    grid-template-columns: 176px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--pg-header-pad) + 8px);
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    overflow: visible;
    padding: 0 0 0 14px;
    border-left: 2px solid var(--ab-line);
  }

  .page-about .about-rail__title {
    display: block;
    font-size: 11.5px;
    letter-spacing: .1em;
    color: var(--c-stone);
    margin: 0 0 10px -14px;
    padding-left: 14px;
  }

  .page-about .about-rail__link {
    border: 0;
    border-radius: 0 999px 999px 0;
    padding: 9px 12px;
    margin-left: -14px;
    text-align: left;
    font-size: 12.5px;
  }

  .page-about .about-rail__link[aria-current="true"] {
    background: var(--c-sand);
    color: var(--c-date);
  }
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  background: linear-gradient(180deg, rgba(242, 227, 200, .55) 0%, rgba(251, 246, 236, 0) 78%);
}

.page-about .about-team__head {
  max-width: 44em;
  margin-bottom: 26px;
}

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

.page-about .about-team__figure {
  max-width: 720px;
  margin: 0 auto 32px;
}

.page-about .about-team__grid {
  display: grid;
  gap: 16px;
}

.page-about .about-team__col {
  background: var(--c-card);
  border: 1px solid var(--ab-line-soft);
  border-top: 4px solid var(--c-sand);
  border-radius: var(--pg-radius);
  padding: 22px;
  transition: box-shadow .2s ease, transform .2s ease;
}

.page-about .about-team__col--lake {
  border-top-color: var(--c-lake);
}

.page-about .about-team__col--grape {
  border-top-color: var(--c-grape);
}

.page-about .about-team__col:hover {
  box-shadow: 0 10px 24px rgba(46, 33, 24, .08);
  transform: translateY(-1px);
}

.page-about .about-team__num {
  font-family: var(--pg-font-serif);
  font-weight: 900;
  font-size: 42px;
  line-height: 1;
  color: var(--c-poplar);
  margin: 14px 0 14px;
  font-variant-numeric: tabular-nums;
}

.page-about .about-team__num span {
  font-family: var(--pg-font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--c-stone);
  margin-left: 6px;
}

.page-about .about-team__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-team__list li {
  position: relative;
  font-size: 14.5px;
  line-height: 1.65;
  padding: 9px 0 9px 16px;
  border-top: 1px solid var(--ab-line-soft);
  color: rgba(46, 33, 24, .82);
}

.page-about .about-team__list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-team__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-sand);
}

.page-about .about-team__list li:first-child::before {
  top: 8px;
}

@media (min-width: 900px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

/* ---------- 命名规则 ---------- */
.page-about .about-naming {
  padding-top: 0;
}

.page-about .about-naming__grid {
  display: grid;
  gap: 30px;
}

.page-about .about-naming__intro {
  max-width: 38em;
  color: rgba(46, 33, 24, .82);
  margin-bottom: 22px;
}

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

.page-about .about-layers__item {
  border-radius: var(--pg-radius-sm);
  padding: 16px 18px;
  border: 1px solid transparent;
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}

.page-about .about-layers__item--1 {
  max-width: 100%;
  background: var(--c-date);
  color: var(--c-cream);
}

.page-about .about-layers__item--2 {
  max-width: 90%;
  background: var(--c-sand);
  color: var(--c-date);
}

.page-about .about-layers__item--3 {
  max-width: 80%;
  background: var(--c-dune);
  color: var(--c-date);
}

.page-about .about-layers__item:hover {
  border-color: var(--c-lake);
  box-shadow: 0 0 0 3px rgba(31, 111, 139, .12);
  transform: translateX(2px);
}

.page-about .about-layers__depth {
  display: block;
  font-size: 11.5px;
  letter-spacing: .1em;
  font-weight: 700;
  margin-bottom: 6px;
  opacity: .8;
}

.page-about .about-layers__item h3 {
  color: inherit;
  font-size: 18px;
  margin-bottom: 4px;
}

.page-about .about-layers__item p {
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
  opacity: .88;
}

.page-about .about-naming__note {
  max-width: 38em;
}

.page-about .about-naming__figure {
  max-width: 400px;
}

@media (min-width: 1024px) {
  .page-about .about-naming__grid {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-naming__figure {
    max-width: none;
  }
}

/* ---------- 互校 ---------- */
.page-about .about-review__panel {
  background: var(--c-lake-deep);
  color: var(--c-cream);
  border-radius: var(--pg-radius-lg);
  padding: clamp(26px, 5vw, 54px);
  display: grid;
  gap: 26px;
}

.page-about .about-review__eyebrow {
  color: var(--c-sand);
}

.page-about .about-review__panel h2 {
  color: var(--c-cream);
  max-width: 16em;
}

.page-about .about-review__lead {
  color: rgba(251, 246, 236, .82);
  font-size: 16px;
  line-height: 1.8;
  max-width: 34em;
  margin: 0;
}

.page-about .about-review__link {
  color: var(--c-sand);
}

.page-about .about-review__link:hover {
  color: var(--c-cream);
}

.page-about .about-review__check {
  list-style: none;
  margin: 0;
  padding: 0;
  align-self: start;
}

.page-about .about-review__check .pg-check__row {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 14.5px;
  line-height: 1.65;
  color: rgba(251, 246, 236, .9);
  padding: 12px 6px;
  border-top: 1px solid rgba(251, 246, 236, .16);
  transition: background .18s ease, box-shadow .18s ease, color .18s ease;
}

.page-about .about-review__check .pg-check__row:first-child {
  border-top: 0;
}

.page-about .about-review__check .pg-check__row:hover {
  background: rgba(251, 246, 236, .07);
  box-shadow: inset 3px 0 0 var(--c-sand);
  color: var(--c-cream);
}

.page-about .about-review__check .pg-check__num {
  font-family: var(--pg-font-serif);
  font-weight: 900;
  font-size: 13px;
  color: var(--c-sand);
  letter-spacing: .08em;
  flex: 0 0 auto;
}

@media (min-width: 960px) {
  .page-about .about-review__panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 48px;
    align-items: start;
  }
}

/* ---------- 三条做法 ---------- */
.page-about .about-practice__head {
  margin-bottom: 26px;
}

.page-about .about-practice__list {
  display: grid;
  gap: 16px;
}

.page-about .about-practice__item {
  background: var(--c-card);
  border: 1px solid var(--ab-line-soft);
  border-radius: var(--pg-radius);
  padding: 24px 22px;
  transition: background .2s ease, box-shadow .2s ease;
}

.page-about .about-practice__item:hover {
  background: #FFF8EA;
  box-shadow: 0 10px 24px rgba(46, 33, 24, .07);
}

.page-about .about-practice__num {
  font-family: var(--pg-font-serif);
  font-weight: 900;
  font-size: 40px;
  line-height: 1;
  color: rgba(199, 91, 39, .34);
  margin: 0 0 12px;
  font-variant-numeric: tabular-nums;
}

.page-about .about-practice__item p:last-child {
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(46, 33, 24, .82);
  margin: 0;
}

@media (min-width: 900px) {
  .page-about .about-practice__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

/* ---------- 收尾 ---------- */
.page-about .about-next {
  padding: 0 0 var(--ab-gap);
}

.page-about .about-next__inner {
  background: linear-gradient(118deg, var(--c-sand) 0%, #F1C77F 58%, var(--c-dune) 100%);
  border-radius: var(--pg-radius-lg);
  padding: clamp(24px, 4vw, 42px);
  display: grid;
  gap: 20px;
}

.page-about .about-next__text {
  font-family: var(--pg-font-serif);
  font-weight: 900;
  font-size: clamp(19px, 2.6vw, 25px);
  line-height: 1.45;
  margin: 0;
  max-width: 22em;
}

.page-about .about-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-next .pg-btn--ghost {
  border-color: rgba(46, 33, 24, .32);
  color: var(--c-date);
  background: rgba(251, 246, 236, .55);
}

.page-about .about-next .pg-btn--ghost:hover {
  background: rgba(251, 246, 236, .9);
}

@media (min-width: 860px) {
  .page-about .about-next__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }

  .page-about .about-tl__item:hover .about-tl__card,
  .page-about .about-team__col:hover,
  .page-about .about-layers__item:hover {
    transform: none;
  }
}
<<<END>>>