.page-about {
  --about-rail: 32px;
  --about-rail-x: 10px;
  --about-dot: rgba(124, 147, 166, 0.42);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  padding-bottom: var(--gap-xl);
  overflow-x: hidden;
}

@media (min-width: 900px) {
  .page-about {
    --about-rail: 46px;
    --about-rail-x: 15px;
  }
}

/* 显现与章节高亮 */
.page-about .tpg-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .55s ease, transform .55s ease;
}

.page-about .tpg-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tpg-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* 首屏 */
.page-about .about-hero {
  margin-top: var(--gap-l);
  padding: var(--gap-m) 0 0;
}

.page-about .about-hero__eyebrow {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .3rem;
  margin: 0 0 var(--gap-m);
  padding: .38rem .85rem;
  font-size: .8rem;
  letter-spacing: .04em;
  color: var(--ink-2);
  background: var(--sand);
  border: 2px solid var(--ink-2);
  border-radius: var(--pill);
}

.page-about .about-hero__title {
  margin: 0 0 var(--gap-m);
  max-width: 20ch;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.9rem, 7.2vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-about .about-hero__title::after {
  content: "";
  display: block;
  width: 74px;
  height: 8px;
  margin-top: .7rem;
  background: var(--orange);
  border-radius: var(--pill);
}

.page-about .about-hero__lead {
  margin: 0 0 var(--gap-l);
  max-width: 64ch;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--gap-m);
}

.page-about .about-hero__link {
  padding-bottom: 2px;
  font-weight: 700;
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  transition: color .2s ease;
}

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

.page-about .about-hero__figure {
  margin: var(--gap-l) 0 0;
}

.page-about .about-hero__figure .tpg-figure__media {
  overflow: hidden;
  border: 3px solid var(--ink-2);
  border-radius: var(--radius-m) var(--radius-m) var(--radius-xl) var(--radius-xl);
  background: var(--sand);
  box-shadow: var(--shadow-deep);
}

/* 阶段导航 */
.page-about .about-spy {
  display: flex;
  gap: .4rem;
  margin: var(--gap-xl) 0 0;
  padding: .45rem;
  overflow-x: auto;
  border: var(--line-dashed);
  border-radius: var(--pill);
  scrollbar-width: none;
}

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

.page-about .about-spy .tpg-spy__link {
  flex: 0 0 auto;
  padding: .4rem .95rem;
  font-size: .875rem;
  font-weight: 700;
  white-space: nowrap;
  color: var(--ink-2);
  text-decoration: none;
  background: var(--white);
  border: 2px solid transparent;
  border-radius: var(--pill);
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-about .about-spy .tpg-spy__link:hover,
.page-about .about-spy .tpg-spy__link:focus-visible,
.page-about .about-spy .tpg-spy__link[aria-current="page"] {
  color: var(--paper);
  background: var(--orange);
  border-color: var(--ink-2);
}

/* 纵向时间轴 */
.page-about .about-track {
  position: relative;
  display: grid;
  gap: var(--gap-xl);
  margin-top: var(--gap-xl);
  padding-left: var(--about-rail);
}

.page-about .about-track::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: calc(var(--about-rail-x) - 2px);
  width: 4px;
  border-radius: 4px;
  background-image: repeating-linear-gradient(
    to bottom,
    var(--sand) 0 10px,
    transparent 10px 20px
  );
}

.page-about .about-stage {
  position: relative;
  scroll-margin-top: 110px;
}

.page-about .about-stage::before {
  content: "";
  position: absolute;
  top: .95rem;
  left: calc(var(--about-rail-x) - var(--about-rail) - 7px);
  width: 14px;
  height: 14px;
  background: var(--paper);
  border: 3px solid var(--ink-2);
  border-radius: 4px;
  z-index: 1;
  transition: background .35s ease, transform .35s ease;
}

.page-about .about-stage:has(.tpg-chapter.is-current)::before {
  background: var(--orange);
  transform: scale(1.2);
}

/* 章节头 */
.page-about .about-stage .tpg-chapter {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .7rem;
}

.page-about .about-stage .tpg-chapter__no {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-about .about-stage .tpg-chapter__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.35rem, 4.6vw, 2.05rem);
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-about .about-stage .tpg-chapter__rule {
  flex: 1 1 40px;
  height: 0;
  border-top: var(--line-dashed);
  align-self: center;
}

/* 正文段落 */
.page-about .about-stage > p,
.page-about .about-team__intro p {
  margin: var(--gap-m) 0 0;
  max-width: 68ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-about .about-quote {
  margin: var(--gap-l) 0 0;
  max-width: 26ch;
  padding-left: var(--gap-m);
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.3rem, 4.4vw, 1.95rem);
  line-height: 1.5;
  letter-spacing: -.01em;
  color: var(--ink);
  border-left: 6px solid var(--orange);
}

.page-about .about-inline-link {
  color: var(--ink-2);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--cyan);
}

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

/* 旁注卡 */
.page-about .about-aside {
  display: grid;
  gap: var(--gap-m);
  margin-top: var(--gap-l);
}

@media (min-width: 760px) {
  .page-about .about-aside {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .about-aside .tpg-note {
  padding: var(--gap-m);
  background: var(--white);
  border: 2px solid var(--ink-2);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-card);
}

.page-about .about-aside .tpg-note p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-about .about-aside .tpg-note strong {
  color: var(--ink);
}

@media (min-width: 760px) {
  .page-about .about-aside .tpg-note:nth-child(even) {
    margin-top: 18px;
  }
}

/* 团队分工 */
.page-about .about-team {
  display: grid;
  gap: var(--gap-l);
  margin-top: var(--gap-l);
}

@media (min-width: 900px) {
  .page-about .about-team {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

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

.page-about .about-team__figure .tpg-figure__media {
  overflow: hidden;
  border: 3px solid var(--ink-2);
  border-radius: var(--radius-l);
  background: var(--sand);
  box-shadow: var(--shadow-card);
}

.page-about .about-roster {
  display: flex;
  gap: var(--gap-m);
  margin-top: var(--gap-l);
  padding: .25rem .25rem var(--gap-m);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--sand) transparent;
}

.page-about .about-role {
  flex: 0 0 82%;
  display: flex;
  flex-direction: column;
  gap: .7rem;
  padding: var(--gap-m) var(--gap-m) var(--gap-l);
  scroll-snap-align: start;
  background: var(--ink-2);
  border: 3px solid var(--ink-2);
  border-radius: var(--radius-m);
  box-shadow: 4px 4px 0 0 var(--orange);
}

@media (min-width: 700px) {
  .page-about .about-role {
    flex: 0 0 330px;
  }
}

.page-about .about-role__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
}

.page-about .about-role__name {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.1rem;
  line-height: 1.35;
  color: var(--paper);
}

.page-about .about-role__count {
  flex: 0 0 auto;
  padding: .12rem .55rem;
  font-size: .75rem;
  font-weight: 700;
  color: var(--amber);
  background: var(--ink);
  border: 2px solid var(--amber);
  border-radius: var(--pill);
}

.page-about .about-role__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--sand);
}

/* 时间线横图 */
.page-about .about-strip {
  margin: var(--gap-l) 0 0;
}

.page-about .about-strip .tpg-figure__media {
  overflow: hidden;
  border: 3px solid var(--ink-2);
  border-radius: var(--radius-l);
  background: var(--sand);
  box-shadow: var(--shadow-card);
}

/* 玩家分布 */
.page-about .about-map {
  margin-top: var(--gap-l);
  padding: var(--gap-l) var(--gap-m);
  border: 3px solid var(--steel);
  border-radius: var(--radius-l);
  background-color: var(--paper);
  background-image: radial-gradient(
    circle,
    var(--about-dot) 1.5px,
    transparent 1.7px
  );
  background-size: 14px 14px;
}

.page-about .about-map__note {
  margin: 0;
  max-width: 60ch;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--steel);
}

.page-about .about-map__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-m);
  margin: var(--gap-l) 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 720px) {
  .page-about .about-map__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-about .about-map__stats li {
  padding: var(--gap-m);
  background: var(--white);
  border: 2px solid var(--steel);
  border-radius: var(--radius-m);
}

.page-about .about-map__num {
  display: block;
  font-size: clamp(1.25rem, 4.6vw, 1.55rem);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--steel);
}

.page-about .about-map__label {
  display: block;
  margin-top: .3rem;
  font-size: .8125rem;
  line-height: 1.5;
  color: var(--steel);
}

/* 长期坚持 */
.page-about .about-promise {
  display: grid;
  gap: var(--gap-m);
  margin-top: var(--gap-l);
}

.page-about .about-promise__item {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
  padding: var(--gap-m);
  background: var(--white);
  border: 2px solid var(--ink-2);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-card);
}

.page-about .about-promise__mark {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  font-size: .85rem;
  font-weight: 700;
  color: var(--ink);
  background: var(--amber);
  border: 3px solid var(--ink-2);
  border-radius: 10px;
}

.page-about .about-promise__name {
  margin: 0 0 .3rem;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.08rem;
  color: var(--ink);
}

.page-about .about-promise__item p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--ink-2);
}

/* 收尾行动区 */
.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-m);
  margin-top: var(--gap-l);
  padding: var(--gap-l) var(--gap-m);
  background: var(--ink-2);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-deep);
}

.page-about .about-cta__text {
  margin: 0;
  max-width: 34ch;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.05rem, 3.8vw, 1.35rem);
  line-height: 1.55;
  color: var(--paper);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}
<<<END>>>