.page-about {
  --ab-side: 0px;
  --ab-gap: 0px;
  --ab-line: rgba(36, 26, 20, .14);
  --ab-gold-line: rgba(201, 162, 39, .45);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
}

@media (min-width: 860px) {
  .page-about {
    --ab-side: 96px;
    --ab-gap: 48px;
  }
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(31, 122, 99, .58) 0%, rgba(11, 18, 32, 0) 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(200, 50, 43, .38) 0%, rgba(11, 18, 32, 0) 58%),
    var(--night);
  color: var(--paper);
  padding: calc(var(--header-h) + 42px) 0 52px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201, 162, 39, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 162, 39, .1) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--ab-gold-line);
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .breadcrumb {
  color: rgba(244, 237, 225, .68);
}

.page-about .about-hero .breadcrumb__link {
  color: rgba(244, 237, 225, .68);
  text-decoration: none;
  transition: color 160ms var(--ease);
}

.page-about .about-hero .breadcrumb__link:hover {
  color: var(--gold);
}

.page-about .about-hero .kicker {
  display: inline-block;
  margin: 26px 0 0;
  color: var(--gold);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--vermillion);
  font-size: clamp(30px, 8vw, 52px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .about-hero__lede {
  margin: 22px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 237, 225, .86);
}

.page-about .about-hero__facts {
  margin: 36px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--ab-gold-line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 14px;
}

@media (min-width: 720px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0;
  }

  .page-about .about-fact {
    padding: 2px 16px;
    border-left: 1px solid rgba(201, 162, 39, .28);
  }

  .page-about .about-fact:first-child {
    border-left: 0;
    padding-left: 0;
  }
}

.page-about .about-fact__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 23px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-about .about-fact__label {
  display: block;
  margin-top: 7px;
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: .02em;
  color: rgba(244, 237, 225, .68);
}

/* ---------- 通用分章 ---------- */
.page-about .about-timeline,
.page-about .about-classify,
.page-about .about-update,
.page-about .about-cta {
  padding: 52px 0;
}

.page-about .about-rooms,
.page-about .about-team {
  padding: 52px 0;
}

@media (min-width: 860px) {
  .page-about .about-timeline,
  .page-about .about-classify,
  .page-about .about-update,
  .page-about .about-cta,
  .page-about .about-rooms,
  .page-about .about-team {
    padding: 76px 0;
  }
}

.page-about .about-classify {
  border-top: 1px solid var(--ab-line);
}

.page-about .about-cta {
  border-top: 1px solid var(--ab-line);
  background: var(--paper-lift);
}

/* ---------- 时间轴 ---------- */
.page-about .about-tl-nav {
  display: flex;
  gap: 8px;
  margin: 26px 0 30px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ab-line);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-tl-nav a {
  flex: 0 0 auto;
  padding: 7px 12px;
  border: 1px solid var(--ab-line);
  background: var(--paper-lift);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--jade-deep);
  text-decoration: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-about .about-tl-nav a:hover,
.page-about .about-tl-nav a:focus-visible {
  color: var(--vermillion);
  border-color: var(--vermillion);
}

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

.page-about .about-tl::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 5px;
  width: 1px;
  background: linear-gradient(180deg, var(--jade) 0%, var(--gold) 55%, var(--vermillion) 100%);
}

@media (min-width: 860px) {
  .page-about .about-tl::before {
    left: calc(var(--ab-side) + var(--ab-gap) / 2 - 0.5px);
  }
}

.page-about .about-tl__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 0 0 46px 34px;
}

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

.page-about .about-tl__item::before {
  content: "";
  position: absolute;
  top: 5px;
  left: 0;
  width: 11px;
  height: 11px;
  background: var(--paper);
  border: 2px solid var(--jade);
  z-index: 1;
}

.page-about .about-tl__item:last-child::before {
  border-color: var(--vermillion);
}

@media (min-width: 860px) {
  .page-about .about-tl__item {
    grid-template-columns: var(--ab-side) 1fr;
    column-gap: var(--ab-gap);
    padding-left: 0;
  }

  .page-about .about-tl__item::before {
    left: calc(var(--ab-side) + var(--ab-gap) / 2 - 5.5px);
  }
}

.page-about .about-tl__side {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

@media (min-width: 860px) {
  .page-about .about-tl__side {
    flex-direction: column;
    align-items: flex-end;
    gap: 5px;
    padding-top: 1px;
    text-align: right;
  }
}

.page-about .about-tl__num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--vermillion);
  line-height: 1.1;
}

.page-about .about-tl__year {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-about .about-tl__body h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink-brown);
}

.page-about .about-tl__body p {
  margin: 11px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
}

.page-about .about-tl__body p:nth-of-type(2) {
  max-width: 42ch;
  color: var(--ink-brown);
}

/* ---------- 图片 ---------- */
.page-about .about-fig {
  margin: 24px 0 0;
}

.page-about .about-fig .media__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-about .about-fig .media__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-rooms .about-fig {
  margin-top: 36px;
}

.page-about .about-rooms .about-fig .media__cap {
  color: rgba(244, 237, 225, .62);
}

/* ---------- 分类表 ---------- */
.page-about .about-table {
  margin-top: 26px;
  border: 1px solid var(--ink-brown);
  background: var(--paper-lift);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-table table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
}

.page-about .about-table th,
.page-about .about-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  font-size: 15px;
  line-height: 1.65;
  border-bottom: 1px solid var(--ab-line);
}

.page-about .about-table thead th {
  background: var(--jade);
  color: var(--paper);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  border-bottom: 0;
}

.page-about .about-table tbody tr:nth-child(even) {
  background: rgba(217, 207, 190, .34);
}

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

.page-about .about-table tbody td:first-child {
  border-left: 3px solid var(--gold);
  font-weight: 800;
  color: var(--ink-brown);
  white-space: nowrap;
}

.page-about .about-table tbody td:nth-child(3),
.page-about .about-table tbody td:nth-child(4),
.page-about .about-table tbody td:nth-child(5) {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--jade-deep);
}

.page-about .about-classify__foot {
  margin: 22px 0 0;
  max-width: 62ch;
  padding-left: 14px;
  border-left: 3px solid var(--vermillion);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-brown);
}

/* ---------- 厅别（深色） ---------- */
.page-about .about-rooms {
  position: relative;
  background: var(--night);
  color: var(--paper);
}

.page-about .about-rooms .kicker {
  color: var(--gold);
}

.page-about .about-rooms .section-title {
  color: var(--paper);
}

.page-about .about-rooms .note {
  color: rgba(244, 237, 225, .66);
}

.page-about .about-room-grid {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 26px;
  border: 1px solid var(--ab-gold-line);
}

.page-about .about-room {
  padding: 24px 22px 26px;
  border-top: 1px solid rgba(201, 162, 39, .3);
}

.page-about .about-room:first-child {
  border-top: 0;
}

@media (min-width: 800px) {
  .page-about .about-room-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-room {
    border-top: 0;
    border-left: 1px solid rgba(201, 162, 39, .3);
  }

  .page-about .about-room:first-child {
    border-left: 0;
  }
}

.page-about .about-room h3 {
  margin: 16px 0 0;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--gold);
}

.page-about .about-room p {
  margin: 12px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 237, 225, .84);
}

.page-about .about-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 34px;
  border-top: 1px solid var(--ab-gold-line);
  border-bottom: 1px solid var(--ab-gold-line);
}

@media (min-width: 860px) {
  .page-about .about-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-about .about-band__item {
  padding: 20px 16px;
  border-bottom: 1px solid rgba(201, 162, 39, .22);
}

.page-about .about-band__item:nth-child(2n) {
  border-left: 1px solid rgba(201, 162, 39, .22);
}

.page-about .about-band__item:nth-last-child(-n+2) {
  border-bottom: 0;
}

@media (min-width: 860px) {
  .page-about .about-band__item {
    border-bottom: 0;
    border-left: 1px solid rgba(201, 162, 39, .22);
  }

  .page-about .about-band__item:first-child {
    border-left: 0;
    padding-left: 0;
  }
}

.page-about .about-band__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-about .about-band__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: .02em;
  color: rgba(244, 237, 225, .62);
}

/* ---------- 更新机制 ---------- */
.page-about .about-update__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

@media (min-width: 900px) {
  .page-about .about-update__grid {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

.page-about .about-update__main .section-title {
  margin-top: 10px;
}

.page-about .about-update__main p {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--ink);
}

.page-about .about-sidecard {
  padding: 22px 20px 24px;
  border: 1px solid var(--ink-brown);
  background: var(--paper-lift);
  border-top: 3px solid var(--jade);
}

.page-about .about-sidecard h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink-brown);
}

.page-about .about-sidecard p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.page-about .about-awards {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-about .about-awards li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--ab-line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-brown);
}

.page-about .about-awards li:last-child {
  border-bottom: 0;
}

.page-about .about-awards__num {
  flex: 0 0 auto;
  min-width: 42px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--vermillion);
}

/* ---------- 团队（深色） ---------- */
.page-about .about-team {
  background: var(--ink-brown);
  color: var(--paper);
  position: relative;
}

.page-about .about-team::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--ab-gold-line);
}

.page-about .about-team .kicker {
  color: var(--gold);
}

.page-about .about-team .section-title {
  color: var(--paper);
}

.page-about .about-team .note {
  color: rgba(244, 237, 225, .64);
}

.page-about .about-duties {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 26px;
  border-top: 1px solid rgba(201, 162, 39, .3);
}

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

.page-about .about-duty {
  padding: 24px 0 26px;
  border-bottom: 1px solid rgba(201, 162, 39, .22);
}

@media (min-width: 880px) {
  .page-about .about-duty {
    padding: 26px 26px 10px 0;
    border-bottom: 0;
    border-right: 1px solid rgba(201, 162, 39, .22);
  }

  .page-about .about-duty:last-child {
    border-right: 0;
    padding-right: 0;
  }
}

.page-about .about-duty__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--vermillion);
}

.page-about .about-duty h3 {
  margin: 12px 0 0;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .about-duty p {
  margin: 12px 0 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 237, 225, .82);
}

.page-about .about-team__note {
  margin-top: 30px;
  padding-left: 16px;
  border-left: 3px solid var(--jade);
}

.page-about .about-team__note p {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 237, 225, .86);
}

/* ---------- 行动区 ---------- */
.page-about .about-cta__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

@media (min-width: 880px) {
  .page-about .about-cta__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

.page-about .about-cta__head .section-title {
  margin-top: 10px;
}

.page-about .about-cta__lede {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-links li {
  border-top: 1px solid var(--ab-line);
}

.page-about .about-links li:last-child {
  border-bottom: 1px solid var(--ab-line);
}

.page-about .about-links a {
  display: block;
  padding: 15px 4px 15px 16px;
  border-left: 3px solid transparent;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-brown);
  text-decoration: none;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), padding-left 160ms var(--ease);
}

.page-about .about-links a:hover,
.page-about .about-links a:focus-visible {
  border-left-color: var(--vermillion);
  color: var(--vermillion);
  padding-left: 20px;
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-tl-nav a,
  .page-about .about-links a,
  .page-about .about-hero .breadcrumb__link {
    transition: none;
  }
}
<<<END>>>