.page-about {
  --about-gap: clamp(14px, 2.4vw, 22px);
  --about-pad: clamp(16px, 4vw, 40px);
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about * {
  box-sizing: border-box;
}

.page-about .about-inner {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
}

.page-about .about-band {
  padding: clamp(40px, 6.5vw, 84px) var(--about-pad);
}

.page-about .about-band--hero {
  padding-top: clamp(18px, 3vw, 30px);
  padding-bottom: clamp(24px, 3.5vw, 40px);
}

.page-about .about-band--ink {
  background: var(--ink-900);
  color: var(--cream);
}

.page-about .about-crumbs {
  margin-bottom: clamp(14px, 2vw, 22px);
}

/* 首屏 */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 130% at 92% -10%, rgba(37, 107, 96, 0.38), transparent 58%),
    radial-gradient(90% 100% at 0% 110%, rgba(201, 71, 10, 0.22), transparent 60%),
    var(--ink-900);
  color: var(--cream);
  padding: clamp(24px, 4vw, 52px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--orange-400) 0 2px, transparent 2px 20px);
  opacity: 0.55;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 1px solid rgba(91, 182, 166, 0.35);
  pointer-events: none;
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(22px, 3.6vw, 44px);
  position: relative;
  z-index: 1;
}

.page-about .about-eyebrow {
  color: var(--celadon-500);
  letter-spacing: 0.12em;
  margin: 0 0 14px;
  font-size: 12px;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(31px, 5.4vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  color: var(--cream);
}

.page-about .about-hero__lede {
  margin: 0 0 26px;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--mist);
  max-width: 46ch;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-btn-ghost {
  background: transparent;
  color: var(--cream);
  border-color: rgba(244, 239, 230, 0.36);
}

.page-about .about-btn-ghost:hover {
  border-color: var(--orange-400);
  color: var(--orange-400);
}

.page-about .about-hero__figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(244, 239, 230, 0.14);
  background: var(--ink-800);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 14 / 9;
}

/* 章节导航 */
.page-about .about-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: clamp(16px, 2.4vw, 24px);
}

.page-about .about-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  color: var(--ink-soft);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus-visible {
  color: var(--orange-600);
  border-color: var(--orange-600);
  transform: translateY(-2px);
}

.page-about .about-toc__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--celadon-700);
}

/* 章节标题 */
.page-about .about-section--paper {
  background: rgba(255, 255, 255, 0.5);
}

.page-about .about-head {
  max-width: 64ch;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-about .about-head .eyebrow {
  color: var(--celadon-700);
  letter-spacing: 0.12em;
  margin: 0 0 12px;
  font-size: 12px;
}

.page-about .about-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  color: var(--ink);
}

.page-about .about-head__lede {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-about .about-head--ink .about-head__title {
  color: var(--cream);
}

.page-about .about-head--ink .about-head__lede {
  color: var(--mist);
}

/* 三张说明牌 */
.page-about .about-notes {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-note {
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 4px solid var(--orange-600);
  border-radius: var(--radius-md);
  padding: 22px 22px 24px;
}

.page-about .about-note--celadon {
  border-top-color: var(--celadon-500);
}

.page-about .about-note__tag {
  display: inline-block;
  margin-bottom: 12px;
}

.page-about .about-note__title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 10px;
  color: var(--ink);
}

.page-about .about-note__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* 发展历程 */
.page-about .about-arc__grid {
  display: grid;
  gap: clamp(24px, 3.6vw, 44px);
}

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

.page-about .about-arc__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  object-fit: cover;
}

.page-about .about-arc__caption {
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

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

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 14px;
  width: 2px;
  background: linear-gradient(180deg, var(--orange-600), var(--celadon-500));
  opacity: 0.42;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 26px 40px;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--paper);
  border: 3px solid var(--orange-600);
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--orange-600);
  margin-bottom: 4px;
}

.page-about .about-timeline__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--ink);
}

.page-about .about-timeline__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-soft);
  max-width: 48ch;
}

/* 团队 */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
}

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

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-about .about-team__caption {
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.page-about .about-roles {
  display: grid;
  gap: 12px;
}

.page-about .about-role {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-role__num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 3.2vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--orange-600);
}

.page-about .about-role__name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  margin: 0;
  color: var(--ink);
}

.page-about .about-role__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-about .about-role--ink {
  background: var(--ink-800);
  border-color: transparent;
}

.page-about .about-role--ink .about-role__num {
  color: var(--orange-400);
}

.page-about .about-role--ink .about-role__name {
  color: var(--cream);
}

.page-about .about-role--ink .about-role__text {
  color: var(--mist);
}

.page-about .about-role--celadon {
  background: var(--celadon-700);
  border-color: transparent;
}

.page-about .about-role--celadon .about-role__num {
  color: var(--cream);
}

.page-about .about-role--celadon .about-role__name {
  color: var(--cream);
}

.page-about .about-role--celadon .about-role__text {
  color: rgba(244, 239, 230, 0.84);
}

/* 服务能力 */
.page-about .about-cap {
  display: grid;
  gap: 12px;
}

.page-about .about-cap__item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: border-color 0.22s var(--ease);
}

.page-about .about-cap__item:hover {
  border-color: var(--celadon-500);
}

.page-about .about-cap__item summary {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-cap__item summary::-webkit-details-marker {
  display: none;
}

.page-about .about-cap__item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--orange-600);
}

.page-about .about-cap__item[open] summary::after {
  content: "\2212";
}

.page-about .about-cap__item summary:focus-visible {
  outline: 2px solid var(--orange-600);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.page-about .about-cap__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--celadon-700);
}

.page-about .about-cap__body {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-about .about-cap__more {
  grid-column: 1 / -1;
  background: var(--ink-800);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.page-about .about-cap__more-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--cream);
  max-width: 40ch;
}

/* 续费与保障 */
.page-about .about-stats {
  display: grid;
  gap: 18px;
}

.page-about .about-stat {
  padding-top: 14px;
  border-top: 2px solid rgba(255, 138, 76, 0.55);
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--orange-400);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-about .about-guards {
  display: grid;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-about .about-guard {
  display: flex;
  gap: 12px;
  margin: 0;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(244, 239, 230, 0.12);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-about .about-guard::before {
  content: "\25C6";
  font-size: 10px;
  line-height: 2.4;
  color: var(--celadon-500);
  flex: none;
}

/* 结尾行动区 */
.page-about .about-band--cta {
  padding-top: clamp(24px, 3vw, 40px);
  padding-bottom: clamp(48px, 7vw, 90px);
}

.page-about .about-cta {
  border-radius: var(--radius-lg);
  padding: clamp(26px, 4vw, 48px);
  background:
    radial-gradient(100% 140% at 100% 0%, rgba(201, 71, 10, 0.32), transparent 60%),
    linear-gradient(140deg, var(--ink-800), var(--ink-900));
  color: var(--cream);
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  align-items: center;
  justify-content: space-between;
}

.page-about .about-cta__copy {
  max-width: 46ch;
}

.page-about .about-cta__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  margin: 0 0 10px;
  color: var(--cream);
}

.page-about .about-cta__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-about .about-cta__ghost {
  background: transparent;
  color: var(--cream);
  border-color: rgba(244, 239, 230, 0.36);
}

.page-about .about-cta__ghost:hover {
  border-color: var(--orange-400);
  color: var(--orange-400);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-about .about-roles {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-guards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 760px) {
  .page-about .about-notes {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-cap {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: 1.12fr 0.88fr;
    align-items: center;
  }

  .page-about .about-hero__figure img {
    aspect-ratio: auto;
    height: 100%;
    min-height: 300px;
  }
}

@media (min-width: 980px) {
  .page-about .about-arc__grid {
    grid-template-columns: 0.82fr 1.18fr;
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1040px) {
  .page-about .about-cap {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-toc__link,
  .page-about .about-cap__item {
    transition: none;
  }

  .page-about .about-toc__link:hover,
  .page-about .about-toc__link:focus-visible {
    transform: none;
  }
}
<<<END>>>