.page-about {
  display: block;
  color: var(--ivory);
  padding-bottom: clamp(48px, 8vw, 104px);
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about figure {
  margin: 0;
}

.page-about .breadcrumb {
  padding-top: clamp(16px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-block: clamp(16px, 3vw, 30px) clamp(34px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(115% 85% at 88% 0%, rgba(16, 42, 67, 0.85), transparent 62%),
    radial-gradient(70% 65% at 0% 100%, rgba(212, 166, 58, 0.10), transparent 70%);
}

.page-about .about-rail-note {
  display: none;
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
}

.page-about .about-hero__title {
  margin: 14px 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 9vw, 78px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--ivory);
  -webkit-text-stroke: 1px rgba(212, 166, 58, 0.28);
}

.page-about .about-hero__title span {
  display: block;
  margin-top: 0.22em;
  font-size: clamp(20px, 4.4vw, 38px);
  letter-spacing: 0.02em;
  color: var(--gold);
  -webkit-text-stroke: 0;
}

.page-about .about-hero__lead {
  max-width: 60ch;
  margin: 0 0 clamp(18px, 3vw, 26px);
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.9;
  color: var(--mist);
}

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

.page-about .about-hero__points li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ivory);
}

.page-about .about-hero__points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 8px;
  height: 8px;
  transform: rotate(45deg);
  border: 1px solid var(--cyan);
  background: rgba(56, 224, 208, 0.22);
}

.page-about .about-emblem img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-gold);
  background: var(--ink-800);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-about .about-emblem__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-about .about-facts {
  margin: clamp(16px, 3vw, 24px) 0 0;
  border-top: 1px solid var(--line-gold);
}

.page-about .about-facts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-facts dt {
  font-size: 13px;
  color: var(--mist);
  white-space: nowrap;
}

.page-about .about-facts dd {
  margin: 0;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--gold-hi);
}

.page-about .about-facts__more {
  margin: clamp(16px, 3vw, 22px) 0 0;
}

/* ---------- 章节骨架 ---------- */
.page-about .about-block {
  padding-block: clamp(34px, 6vw, 74px);
  border-bottom: 1px solid var(--line);
}

.page-about .about-block__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 4vw, 48px);
}

.page-about .about-chapter__no {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.32em;
  color: var(--gold);
}

.page-about .about-chapter__no::after {
  content: "";
  display: block;
  width: 44px;
  height: 1px;
  margin-top: 10px;
  background: linear-gradient(90deg, var(--gold), rgba(212, 166, 58, 0));
}

.page-about .about-chapter__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 3.6vw, 38px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-about .about-chapter__note {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-about .about-text p {
  margin: 0 0 1.15em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.9;
  color: var(--mist);
  max-width: 66ch;
}

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

/* ---------- 会馆由来 ---------- */
.page-about .about-tenets {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-tenets li {
  padding: clamp(16px, 2.6vw, 22px);
  background: linear-gradient(180deg, rgba(16, 42, 67, 0.72), rgba(11, 21, 48, 0.92));
}

.page-about .about-tenets h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--gold-hi);
}

.page-about .about-tenets p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), var(--cyan) 58%, rgba(56, 224, 208, 0));
}

.page-about .tl-item {
  position: relative;
  padding-bottom: clamp(14px, 2.4vw, 22px);
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 18px;
  width: 11px;
  height: 11px;
  transform: rotate(45deg);
  border: 1px solid var(--gold);
  background: var(--ink-900);
  transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-about .tl-item:hover::before,
.page-about .tl-item:focus-within::before {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(56, 224, 208, 0.16);
}

.page-about .tl-card {
  padding: clamp(15px, 2.6vw, 24px);
  border: 1px solid var(--line);
  border-left: 2px solid rgba(212, 166, 58, 0.42);
  background: linear-gradient(180deg, rgba(11, 21, 48, 0.95), rgba(11, 21, 48, 0.7));
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-about .tl-item:hover .tl-card,
.page-about .tl-item:focus-within .tl-card {
  border-color: var(--line-gold);
  border-left-color: var(--gold);
  transform: translateY(-3px);
}

.page-about .tl-card__stage {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-about .tl-card__title {
  margin: 0 0 8px;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ivory);
}

.page-about .tl-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .tl-card__meta {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(56, 224, 208, 0.85);
}

.page-about .tl-card__link {
  margin: 10px 0 0;
  font-size: 14px;
}

.page-about .tl-card__link a {
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 201, 109, 0.4);
  padding-bottom: 1px;
}

.page-about .tl-card__link a:hover,
.page-about .tl-card__link a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-about .about-wide-figure {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-about .about-wide-figure img,
.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-cyan);
  background: var(--ink-800);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-about .about-wide-figure figcaption,
.page-about .about-team__figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

/* ---------- 团队与运营 ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

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

.page-about .role-list__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 14px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid rgba(123, 77, 255, 0.7);
  background: rgba(16, 42, 67, 0.5);
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-about .role-list__item:hover,
.page-about .role-list__item:focus-within {
  border-color: var(--line-gold);
  background: rgba(16, 42, 67, 0.78);
}

.page-about .role-list__role {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--ivory);
}

.page-about .role-list__count {
  margin: 0;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--gold-hi);
  white-space: nowrap;
}

.page-about .role-list__desc {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .rhythm-list {
  list-style: none;
  margin: clamp(22px, 3.4vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line-gold);
}

.page-about .rhythm-list__item {
  padding: clamp(14px, 2.4vw, 20px);
  background: var(--ink-900);
}

.page-about .rhythm-list__when {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-about .rhythm-list__what {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 服务准则 ---------- */
.page-about .rule-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(12px, 2vw, 18px);
}

.page-about .rule-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 16px;
  padding: clamp(14px, 2.4vw, 20px);
  border-left: 2px solid var(--cyan);
  background: linear-gradient(90deg, rgba(16, 42, 67, 0.62), rgba(11, 21, 48, 0.35));
}

.page-about .rule-item:nth-child(2) {
  border-left-color: var(--violet);
}

.page-about .rule-item:nth-child(3) {
  border-left-color: var(--wine);
}

.page-about .rule-item:nth-child(4) {
  border-left-color: var(--gold);
}

.page-about .rule-item__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .rule-item h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ivory);
}

.page-about .rule-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-inline-cta {
  margin: clamp(18px, 3vw, 26px) 0 0;
}

/* ---------- 合作与成绩 ---------- */
.page-about .about-block--trust {
  background:
    radial-gradient(90% 70% at 100% 0%, rgba(140, 47, 74, 0.20), transparent 68%),
    radial-gradient(80% 70% at 0% 100%, rgba(123, 77, 255, 0.16), transparent 70%);
}

.page-about .trust-grid {
  margin-top: clamp(20px, 3vw, 30px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line-gold);
}

.page-about .trust-cell {
  padding: clamp(14px, 2.4vw, 22px);
  background: rgba(5, 10, 24, 0.86);
}

.page-about .trust-cell__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-variant-numeric: tabular-nums;
  color: var(--gold-hi);
  line-height: 1.2;
}

.page-about .trust-cell__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.4vw, 32px);
}

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

  .page-about .rhythm-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 880px) {
  .page-about .about-tenets {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: start;
  }

  .page-about .about-timeline {
    padding-left: 34px;
  }

  .page-about .tl-item::before {
    left: -34px;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-about .about-block__inner {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
    align-items: start;
  }

  .page-about .about-chapter {
    position: sticky;
    top: 120px;
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero {
    padding-left: 34px;
  }

  .page-about .about-rail-note {
    display: block;
    position: absolute;
    top: clamp(72px, 9vw, 122px);
    left: 8px;
    margin: 0;
    writing-mode: vertical-rl;
    letter-spacing: 0.42em;
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--mist);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-card,
  .page-about .tl-item::before,
  .page-about .role-list__item {
    transition: none;
  }

  .page-about .tl-item:hover .tl-card,
  .page-about .tl-item:focus-within .tl-card {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>
</main>