.page-about {
  --about-gap: clamp(48px, 7vw, 88px);
  --about-line: rgba(167, 178, 194, 0.18);
  background: var(--ink-900);
  color: var(--cream);
  padding-bottom: var(--about-gap);
}

.page-about .breadcrumb {
  padding-top: 26px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 34px 0 clamp(52px, 8vw, 96px);
  isolation: isolate;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -190px;
  right: -150px;
  width: min(580px, 82vw);
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at 58% 42%, rgba(216, 166, 74, 0.22), rgba(216, 166, 74, 0) 68%);
  z-index: -1;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 130px;
  background: linear-gradient(180deg, rgba(17, 31, 54, 0), rgba(17, 31, 54, 0.55));
  clip-path: polygon(0 100%, 100% 32%, 100% 100%, 0 100%);
  z-index: -1;
  pointer-events: none;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 36px;
}

.page-about .about-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-sans);
  font-size: clamp(2.05rem, 6.4vw, 3.6rem);
  line-height: 1.16;
  letter-spacing: 0.055em;
  font-weight: 800;
}

.page-about .about-hero h1 em {
  font-style: normal;
  color: var(--gold-bright);
  background: linear-gradient(180deg, transparent 68%, rgba(216, 166, 74, 0.3) 68%);
}

.page-about .about-hero .lead {
  margin: 22px 0 0;
  max-width: 44ch;
  color: var(--mist);
  font-size: 1rem;
  line-height: 1.85;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-stamp {
  position: relative;
  padding: 22px 20px 18px;
  border: 1px solid rgba(167, 178, 194, 0.22);
  border-radius: 20px;
  background: linear-gradient(155deg, rgba(30, 51, 82, 0.86), rgba(17, 31, 54, 0.55));
  box-shadow: 0 26px 60px -34px rgba(0, 0, 0, 0.92);
}

.page-about .about-stamp::before {
  content: "";
  position: absolute;
  top: 22px;
  right: 20px;
  width: 34px;
  height: 2px;
  background: var(--gold);
}

.page-about .about-stamp__title {
  margin: 0 0 8px;
  font-family: var(--font-num);
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-about .about-stamp__list {
  display: grid;
  gap: 0;
}

.page-about .about-stamp__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(167, 178, 194, 0.14);
}

.page-about .about-stamp__row:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-about .about-stamp__k {
  font-size: 0.82rem;
  color: var(--mist);
  flex: 0 0 auto;
}

.page-about .about-stamp__v {
  font-size: 0.9rem;
  color: var(--cream);
  text-align: right;
  font-weight: 600;
}

/* ---------- 大事记 ---------- */
.page-about .about-archive {
  padding: var(--about-gap) 0 0;
  position: relative;
}

.page-about .about-archive__grid {
  display: grid;
  gap: 34px;
}

.page-about .about-index__label {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  color: var(--mist);
}

.page-about .about-index__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-about .about-index__list li {
  flex: 0 0 auto;
}

.page-about .about-index__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid rgba(167, 178, 194, 0.2);
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-about .about-index__num {
  font-family: var(--font-num);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-about .about-index__list a:hover,
.page-about .about-index__list a:focus-visible {
  color: var(--cream);
  border-color: rgba(243, 206, 123, 0.6);
  background: rgba(216, 166, 74, 0.1);
}

.page-about .about-index__note {
  margin: 18px 0 0;
  padding-left: 12px;
  border-left: 2px solid rgba(79, 167, 154, 0.6);
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-figure {
  margin: 0 0 34px;
}

.page-about .about-archive__title {
  margin: 0 0 26px;
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  letter-spacing: 0.05em;
  color: var(--cream);
}

.page-about .milestone {
  position: relative;
  padding: 0 0 32px 26px;
  border-left: 1px solid var(--about-line);
}

.page-about .milestone:last-of-type {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-about .milestone::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(216, 166, 74, 0.14);
}

.page-about .milestone__year {
  margin: 0;
  font-family: var(--font-num);
  font-size: 1.5rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  line-height: 1;
}

.page-about .milestone__title {
  margin: 8px 0 10px;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--cream);
}

.page-about .milestone p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--mist);
  max-width: 60ch;
}

/* ---------- 分类内容体系 ---------- */
.page-about .about-system {
  position: relative;
  isolation: isolate;
  padding: var(--about-gap) 0;
  margin-top: var(--about-gap);
}

.page-about .about-system::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, var(--ink-800), rgba(17, 31, 54, 0.75));
  clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%);
  z-index: -1;
  pointer-events: none;
}

.page-about .about-system__grid {
  display: grid;
  gap: 34px;
}

.page-about .about-system__head h2 {
  margin: 14px 0 0;
  font-size: clamp(1.5rem, 4.2vw, 2.1rem);
  letter-spacing: 0.05em;
  line-height: 1.3;
}

.page-about .about-system__head p {
  margin: 16px 0 24px;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--mist);
  max-width: 40ch;
}

.page-about .about-stat-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
  margin-bottom: 26px;
}

.page-about .about-stat {
  display: grid;
  gap: 4px;
  padding: 18px 10px 18px 0;
}

.page-about .about-stat + .about-stat {
  padding-left: 16px;
  border-left: 1px solid var(--about-line);
}

.page-about .about-stat__num {
  font-family: var(--font-num);
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--gold-bright);
}

.page-about .about-stat__label {
  font-size: 0.76rem;
  color: var(--mist);
  letter-spacing: 0.06em;
}

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

.page-about .about-team {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid rgba(167, 178, 194, 0.14);
  border-radius: 14px;
  background: rgba(10, 19, 36, 0.55);
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-about .about-team:hover {
  border-color: rgba(216, 166, 74, 0.5);
  background: rgba(10, 19, 36, 0.78);
}

.page-about .about-team__name {
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-about .about-team__desc {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 老用户权益 ---------- */
.page-about .about-rights {
  padding: var(--about-gap) 0;
}

.page-about .about-rights__grid {
  display: grid;
  gap: 34px;
}

.page-about .about-rights__copy h2 {
  margin: 14px 0 0;
  font-size: clamp(1.5rem, 4.2vw, 2.1rem);
  letter-spacing: 0.05em;
  line-height: 1.3;
}

.page-about .about-rights__copy > p {
  margin: 16px 0 26px;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--mist);
  max-width: 62ch;
}

.page-about .rights-cards {
  display: grid;
  gap: 14px;
}

.page-about .rights-card {
  padding: 20px 18px 22px;
  border: 1px solid rgba(167, 178, 194, 0.18);
  border-radius: 16px;
  background: linear-gradient(170deg, rgba(30, 51, 82, 0.72), rgba(10, 19, 36, 0.6));
  transition: border-color 0.3s var(--ease), translate 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-about .rights-card:hover,
.page-about .rights-card:focus-within {
  border-color: rgba(216, 166, 74, 0.58);
  translate: 0 -6px;
  box-shadow: 0 18px 42px -26px rgba(216, 166, 74, 0.55);
}

.page-about .rights-card__num {
  display: block;
  font-family: var(--font-num);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  color: var(--cinnabar);
}

.page-about .rights-card__title {
  margin: 8px 0 8px;
  font-size: 1.02rem;
  letter-spacing: 0.05em;
  color: var(--cream);
}

.page-about .rights-card__desc {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-rights .meta-note {
  margin: 24px 0 20px;
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--mist);
}

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

/* ---------- 服务地区 ---------- */
.page-about .about-region {
  padding: var(--about-gap) 0;
  background: linear-gradient(180deg, rgba(17, 31, 54, 0), rgba(17, 31, 54, 0.7), rgba(10, 19, 36, 0));
}

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

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

.page-about .about-region__copy h2 {
  margin: 14px 0 0;
  font-size: clamp(1.5rem, 4.2vw, 2.1rem);
  letter-spacing: 0.05em;
  line-height: 1.3;
}

.page-about .about-region__copy p {
  margin: 16px 0 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .region-points {
  list-style: none;
  margin: 22px 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .region-point {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--cream);
}

.page-about .region-point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 2px;
  background: var(--jade);
}

.page-about .about-region__copy .btn {
  margin-top: 20px;
}

/* ---------- 内容标准与节奏 ---------- */
.page-about .about-rhythm {
  padding: var(--about-gap) 0 0;
}

.page-about .rhythm-head {
  max-width: 62ch;
  margin-bottom: 34px;
}

.page-about .rhythm-head h2 {
  margin: 14px 0 0;
  font-size: clamp(1.5rem, 4.2vw, 2.1rem);
  letter-spacing: 0.05em;
  line-height: 1.3;
}

.page-about .rhythm-head .lead {
  margin: 16px 0 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .rhythm-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--about-line);
}

.page-about .rhythm-item {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--about-line);
}

.page-about .rhythm-item__num {
  font-family: var(--font-num);
  font-size: 0.95rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-about .rhythm-item__title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--cream);
}

.page-about .rhythm-item__desc {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-cta {
  display: grid;
  gap: 18px;
  margin-top: 38px;
  padding: 26px 22px;
  border: 1px solid rgba(216, 166, 74, 0.28);
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(30, 51, 82, 0.7), rgba(10, 19, 36, 0.35));
}

.page-about .about-cta p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--cream);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .rights-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

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

  .page-about .rights-card:nth-child(3) {
    transform: translateY(36px);
  }

  .page-about .rhythm-item {
    grid-template-columns: 62px minmax(0, 200px) minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }

  .page-about .about-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 26px 30px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.85fr);
    gap: 56px;
    align-items: end;
  }

  .page-about .about-system__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.28fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-region__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 52px;
    align-items: center;
  }
}

@media (min-width: 940px) {
  .page-about .about-rights__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.82fr);
    gap: 52px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-archive__grid {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
  }

  .page-about .about-index__list {
    display: block;
    overflow: visible;
    margin-top: 16px;
  }

  .page-about .about-index__list li + li {
    margin-top: 2px;
  }

  .page-about .about-index__list a {
    display: flex;
    padding: 10px 0 10px 14px;
    border: 0;
    border-left: 2px solid rgba(167, 178, 194, 0.2);
    border-radius: 0;
    background: none;
    font-size: 0.9rem;
  }

  .page-about .about-index__list a:hover,
  .page-about .about-index__list a:focus-visible {
    background: none;
    border-left-color: var(--gold);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .rights-card:hover,
  .page-about .rights-card:focus-within {
    translate: 0 0;
  }

  .page-about .about-index__list a,
  .page-about .about-team,
  .page-about .rights-card {
    transition: none;
  }
}
<<<END>>>