.page-about {
  --about-rule: rgba(140, 90, 43, 0.42);
  --about-hair: rgba(154, 176, 196, 0.2);
  --about-wash: rgba(6, 16, 25, 0.55);
  display: block;
  color: var(--mist);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 30px 0 52px;
  background:
    radial-gradient(130% 78% at 84% 4%, rgba(227, 177, 92, 0.16), transparent 62%),
    linear-gradient(178deg, var(--ink-deep) 0%, var(--ink) 68%, var(--ink) 100%);
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    180deg,
    rgba(154, 176, 196, 0.055) 0 1px,
    transparent 1px 4px
  );
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
}

.page-about .about-hero__aside {
  max-width: 340px;
}

.page-about .about-hero__frame {
  position: relative;
  margin: 16px 0 0;
  border: 1px solid var(--about-rule);
  box-shadow: 9px 9px 0 rgba(140, 90, 43, 0.2);
  overflow: hidden;
}

.page-about .about-hero__frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 5;
}

.page-about .about-hero__stamp {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 12px;
  background: var(--gold);
  color: var(--ink-deep);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.page-about .about-hero__ruler {
  height: 12px;
  margin-top: 22px;
  border-bottom: 1px solid var(--about-rule);
  background-image: repeating-linear-gradient(
    90deg,
    var(--about-rule) 0 1px,
    transparent 1px 12px
  );
}

.page-about .about-hero__title {
  margin: 18px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.1rem, 7.4vw, 4.1rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--gold-hi);
}

.page-about .about-hero__lede {
  max-width: 620px;
  margin: 18px 0 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 28px 0 0;
  padding: 1px;
  list-style: none;
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
}

.page-about .about-hero__stat {
  padding: 14px 13px;
  background: var(--ink-deep);
}

.page-about .about-hero__stat b {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-about .about-hero__stat span {
  display: block;
  margin-top: 5px;
  font-size: var(--fs-12);
  line-height: 1.5;
  color: var(--mist);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

/* ---------- 品牌纪年 ---------- */
.page-about .about-era {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
}

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

.page-about .about-era__rail {
  border-left: 1px solid var(--about-rule);
  padding-left: 18px;
}

.page-about .about-era__rail .eyebrow {
  margin-left: 6px;
}

.page-about .about-era__scale {
  margin: 22px 0 0;
  padding: 0 0 0 24px;
  list-style: none;
  border-left: 2px solid var(--about-rule);
}

.page-about .about-era__item {
  position: relative;
  padding-bottom: 26px;
}

.page-about .about-era__item:last-child {
  padding-bottom: 4px;
}

.page-about .about-era__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(227, 177, 92, 0.16);
}

.page-about .about-era__item--now::before {
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(70, 214, 176, 0.16);
}

.page-about .about-era__year {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-about .about-era__item--now .about-era__year {
  color: var(--mint);
}

.page-about .about-era__cap {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-era__body h2 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-28);
  letter-spacing: -0.02em;
  color: var(--gold-hi);
}

.page-about .about-era__body p {
  margin: 0 0 16px;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--mist);
}

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

/* ---------- 服务对象 ---------- */
.page-about .about-who {
  background: var(--ink);
}

.page-about .about-who__grid {
  display: grid;
  gap: 30px;
  margin-top: 8px;
}

.page-about .about-who__meters {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
}

.page-about .about-who__meter {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 18px 18px;
  background: var(--ink-deep);
}

.page-about .about-who__num {
  font-family: var(--font-mono);
  font-size: var(--fs-44);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--gold);
  white-space: nowrap;
}

.page-about .about-who__num small {
  font-size: 0.42em;
  letter-spacing: 0.08em;
  color: var(--gold-hi);
}

.page-about .about-who__lab {
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-who__cases h3 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-20);
  letter-spacing: -0.01em;
  color: var(--paper);
}

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

.page-about .about-who__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 14px 2px;
  border-bottom: 1px solid var(--about-hair);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 六项权益 ---------- */
.page-about .about-benefits {
  background:
    linear-gradient(180deg, var(--ink-deep) 0%, var(--ink) 40%, var(--ink) 100%);
}

.page-about .about-benefits__banner {
  position: relative;
  margin: 0 0 48px;
  border-top: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
}

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

.page-about .about-benefits__banner figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 16px;
  background: var(--gold);
  color: var(--ink-deep);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
}

.page-about .about-benefits__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-benefits__card {
  position: relative;
  color: var(--ink-soft);
  transition: transform var(--t-base) var(--ease),
    box-shadow var(--t-base) var(--ease);
}

.page-about .about-benefits__card:hover,
.page-about .about-benefits__card:focus-within {
  transform: translateY(-4px);
}

.page-about .about-benefits__no {
  display: block;
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--about-rule);
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--copper);
}

.page-about .about-benefits__card h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-20);
  letter-spacing: -0.01em;
  color: var(--ink-deep);
}

.page-about .about-benefits__card p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-about .about-benefits__more {
  margin-top: 12px !important;
  padding-top: 10px;
  border-top: 1px dashed rgba(140, 90, 43, 0.45);
  font-size: var(--fs-12) !important;
  line-height: 1.7 !important;
  color: var(--copper) !important;
  transition: color var(--t-fast) var(--ease);
}

.page-about .about-benefits__card:hover .about-benefits__more {
  color: #7a4a1f !important;
}

.page-about .about-benefits__note {
  margin: 26px 0 0;
  padding: 14px 18px;
  border-left: 3px solid var(--gold);
  background: rgba(227, 177, 92, 0.08);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 适用范围对照 ---------- */
.page-about .about-scope {
  background: var(--ink-deep);
}

.page-about .about-scope__wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--about-hair);
}

.page-about .about-scope__table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: var(--fs-14);
}

.page-about .about-scope__table th {
  padding: 13px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  background: #030a11;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-scope__table td {
  padding: 15px 16px;
  vertical-align: top;
  line-height: 1.75;
  color: var(--mist);
  border-bottom: 1px solid var(--about-hair);
}

.page-about .about-scope__table tbody tr {
  transition: background var(--t-fast) var(--ease);
}

.page-about .about-scope__table tbody tr:hover,
.page-about .about-scope__table tbody tr:focus-within {
  background: rgba(227, 177, 92, 0.08);
}

.page-about .about-scope__table tbody tr:last-child td {
  border-bottom: 0;
}

.page-about .about-scope__table td:first-child {
  color: var(--paper);
}

.page-about .about-scope__table td:last-child::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--rose);
  vertical-align: middle;
}

/* ---------- 订阅核验 ---------- */
.page-about .about-verify {
  background: var(--ink);
}

.page-about .about-verify__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-verify__intro h2 {
  margin: 6px 0 16px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-28);
  letter-spacing: -0.02em;
  color: var(--gold-hi);
}

.page-about .about-verify__intro p {
  margin: 0 0 22px;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-verify__steps {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-about .about-verify__step {
  border: 1px solid var(--about-hair);
  border-left: 3px solid var(--copper);
  background: var(--about-wash);
  transition: border-color var(--t-base) var(--ease);
}

.page-about .about-verify__step[open] {
  border-left-color: var(--gold);
}

.page-about .about-verify__step summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-16);
  letter-spacing: -0.01em;
  color: var(--gold-hi);
}

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

.page-about .about-verify__step summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--copper);
}

.page-about .about-verify__step[open] summary::after {
  content: "－";
  color: var(--gold);
}

.page-about .about-verify__step summary span {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .about-verify__step p {
  margin: 0;
  padding: 0 18px 18px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-verify__hint {
  margin: 6px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--about-rule);
  font-size: var(--fs-12);
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
}

.page-about .about-team__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-team__body h2 {
  margin: 6px 0 16px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-28);
  letter-spacing: -0.02em;
  color: var(--gold-hi);
}

.page-about .about-team__body > p {
  margin: 0 0 20px;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--mist);
}

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

.page-about .about-team__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 13px 2px;
  border-bottom: 1px solid var(--about-hair);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-team__list li span {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--gold);
  padding: 2px 8px;
  border: 1px solid var(--about-rule);
  white-space: nowrap;
}

.page-about .about-team__figure {
  margin: 0;
  border: 1px solid var(--about-rule);
  box-shadow: 8px 8px 0 rgba(140, 90, 43, 0.18);
  overflow: hidden;
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-about .about-team__figure figcaption {
  padding: 12px 16px;
  background: var(--ink-deep);
  font-size: var(--fs-12);
  letter-spacing: 0.02em;
  color: var(--mist);
}

/* ---------- 服务承诺 ---------- */
.page-about .about-promise {
  background: var(--ink-deep);
}

.page-about .about-promise h2 {
  margin: 6px 0 20px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-28);
  letter-spacing: -0.02em;
  color: var(--gold-hi);
}

.page-about .about-promise .prose p {
  margin: 0 0 16px;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-promise__items {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 30px 0 0;
  padding: 1px;
  list-style: none;
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
}

.page-about .about-promise__items li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--ink);
}

.page-about .about-promise__k {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper);
}

.page-about .about-promise__items strong {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-16);
  line-height: 1.5;
  color: var(--gold-hi);
  word-break: break-word;
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  padding: 56px 0 72px;
  background: var(--ink);
}

.page-about .about-next__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 1px;
  list-style: none;
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
}

.page-about .about-next__list li {
  background: var(--ink-deep);
}

.page-about .about-next__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  text-decoration: none;
  font-size: var(--fs-14);
  line-height: 1.55;
  color: var(--paper);
  transition: background var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease);
}

.page-about .about-next__link span:last-child {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-about .about-next__link:hover,
.page-about .about-next__link:focus-visible {
  background: var(--ink-soft);
  color: var(--gold-hi);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .about-benefits__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 44px 0 72px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(230px, 300px) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-about .about-hero__main {
    margin-top: 64px;
  }

  .page-about .about-who__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-era__grid {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-era__rail {
    position: sticky;
    top: 88px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-benefits__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-verify__grid {
    grid-template-columns: 360px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 56px;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-benefits__card,
  .page-about .about-scope__table tbody tr,
  .page-about .about-verify__step,
  .page-about .about-next__link {
    transition: none;
  }

  .page-about .about-benefits__card:hover,
  .page-about .about-benefits__card:focus-within {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>