.page-about {
  --about-sticky: calc(var(--header-h) + 36px);
  --about-gap: clamp(20px, 4vw, 44px);
  background:
    radial-gradient(120% 90% at 88% -8%, rgba(232, 182, 90, 0.10), transparent 55%),
    radial-gradient(90% 70% at 0% 4%, rgba(42, 157, 143, 0.10), transparent 60%),
    var(--ink-900);
  color: var(--white);
  overflow-x: clip;
}

.page-about .about-crumbs {
  padding-top: calc(var(--header-h) + clamp(18px, 4vw, 34px));
  font-size: 13px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  display: grid;
  gap: clamp(30px, 5vw, 62px);
  padding-top: clamp(20px, 3vw, 34px);
  padding-bottom: clamp(48px, 7vw, 96px);
  align-items: start;
}

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

.page-about .about-title {
  font-family: var(--font-display);
  font-size: clamp(34px, 7vw, 62px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 16px 0 0;
  color: var(--white);
  text-wrap: balance;
}

.page-about .about-title-accent {
  color: var(--gold);
  display: inline-block;
  position: relative;
}

.page-about .about-title-accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--gold), rgba(232, 182, 90, 0));
}

.page-about .about-lede {
  margin: 22px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.95;
  color: var(--muted);
}

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

.page-about .about-stats {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 34px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
}

.page-about .about-stats li {
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-about .about-stat-num {
  font-size: clamp(22px, 2.8vw, 30px);
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.02em;
}

.page-about .about-stat-label {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--faint);
}

.page-about .about-hero-media {
  position: relative;
  display: grid;
  gap: 20px;
}

.page-about .about-hero-figure {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-hero-frame {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lift);
}

.page-about .about-hero-frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-about .about-hero-frame::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 46%;
  background: linear-gradient(180deg, transparent, rgba(10, 18, 32, 0.72));
  pointer-events: none;
}

.page-about .about-hero-cap {
  font-size: 12.5px;
  color: var(--faint);
  letter-spacing: 0.02em;
}

.page-about .about-quote {
  margin: 0;
  padding: 20px 22px;
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, rgba(232, 182, 90, 0.16), rgba(18, 29, 47, 0.94) 65%);
  border: 1px solid rgba(232, 182, 90, 0.3);
}

.page-about .about-quote summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.9vw, 20px);
  line-height: 1.55;
  color: var(--gold-soft);
}

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

.page-about .about-quote summary::before {
  content: "＋";
  flex: none;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.9;
  color: var(--gold);
}

.page-about .about-quote[open] summary::before {
  content: "－";
}

.page-about .about-quote p {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(232, 182, 90, 0.22);
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 正文双栏 ---------- */
.page-about .about-body {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  padding-bottom: clamp(56px, 8vw, 108px);
}

.page-about .about-toc-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--faint);
}

.page-about .about-toc ol {
  list-style: none;
  margin: 14px 0 0;
  padding: 0 0 10px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

.page-about .about-toc a {
  display: block;
  white-space: nowrap;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 13px;
  line-height: 1.4;
  color: var(--faint);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-toc a:hover,
.page-about .about-toc a[aria-current="location"] {
  color: var(--ink-900);
  background: var(--gold);
  border-color: var(--gold);
}

.page-about .about-article {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-about .about-chapter {
  padding-top: clamp(36px, 5vw, 64px);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 26px);
}

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

.page-about .about-chapter-num {
  display: block;
  font-size: clamp(28px, 4.2vw, 42px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: rgba(232, 182, 90, 0.45);
  -webkit-text-stroke: 1px rgba(232, 182, 90, 0.5);
}

.page-about .about-chapter h2 {
  font-family: var(--font-display);
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  margin: 12px 0 20px;
  color: var(--white);
}

.page-about .about-chapter p {
  margin: 0 0 16px;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--muted);
}

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

/* ---------- 房间分类 ---------- */
.page-about .about-rooms {
  list-style: none;
  margin: 26px 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-rooms li {
  display: grid;
  gap: 8px;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: var(--ink-850);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-left-color 0.25s var(--ease);
}

.page-about .about-rooms li:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-left-color: var(--gold);
}

.page-about .about-rooms .tag {
  justify-self: start;
}

.page-about .about-room-name {
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.4;
  color: var(--white);
}

.page-about .about-room-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 规则配图 ---------- */
.page-about .about-rules-figure {
  margin: 24px 0 24px;
  display: grid;
  gap: 10px;
}

.page-about .about-rules-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 4 / 3;
}

.page-about .about-rules-frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-about .about-rules-figure figcaption {
  font-size: 12.5px;
  color: var(--faint);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  list-style: none;
  margin: 24px 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-about .about-team li {
  display: grid;
  gap: 4px;
  padding: 16px 16px 18px;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(26, 42, 66, 0.9), rgba(18, 29, 47, 0.9));
  border: 1px solid var(--line);
}

.page-about .about-team-num {
  font-size: 26px;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-team-role {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--white);
}

.page-about .about-team-desc {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--faint);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline-strip {
  position: relative;
  margin: 22px 0 30px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 5 / 2;
}

.page-about .about-timeline-strip img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.7;
}

.page-about .about-timeline-strip::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 18, 32, 0.55), rgba(10, 18, 32, 0.1) 55%, rgba(10, 18, 32, 0.55));
  pointer-events: none;
}

.page-about .about-timeline-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  border-left: 1px solid var(--line-strong);
  display: grid;
  gap: 26px;
}

.page-about .about-timeline-list li {
  position: relative;
  display: grid;
  gap: 6px;
}

.page-about .about-timeline-list li::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(232, 182, 90, 0.14);
}

.page-about .about-timeline-list li:nth-child(1)::before { background: var(--teal); box-shadow: 0 0 0 4px rgba(42, 157, 143, 0.18); }
.page-about .about-timeline-list li:nth-child(2)::before { background: var(--white); box-shadow: 0 0 0 4px rgba(244, 239, 230, 0.14); }
.page-about .about-timeline-list li:nth-child(3)::before { background: var(--red); box-shadow: 0 0 0 4px rgba(209, 73, 91, 0.18); }
.page-about .about-timeline-list li:nth-child(4)::before { background: var(--green); box-shadow: 0 0 0 4px rgba(106, 153, 78, 0.2); }
.page-about .about-timeline-list li:nth-child(5)::before { background: var(--yellow); box-shadow: 0 0 0 4px rgba(242, 193, 78, 0.18); }

.page-about .about-year {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .about-timeline-list p {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 奶油纸阅读区 ---------- */
.page-about .about-chapter--paper {
  margin-top: clamp(36px, 5vw, 62px);
  padding: clamp(24px, 4vw, 42px);
  border-top: 0;
  border-radius: var(--radius-xl);
  background: var(--paper);
  color: var(--paper-ink);
  box-shadow: var(--shadow-lift);
}

.page-about .about-chapter--paper .about-chapter-num {
  color: rgba(42, 30, 18, 0.32);
  -webkit-text-stroke: 1px rgba(42, 30, 18, 0.38);
}

.page-about .about-chapter--paper h2 {
  color: var(--paper-ink);
}

.page-about .about-chapter--paper p {
  color: rgba(42, 30, 18, 0.78);
  max-width: 58ch;
}

.page-about .about-chapter--paper strong {
  color: var(--paper-ink);
  font-family: var(--font-display);
  font-size: 16.5px;
}

/* ---------- 结尾行动区 ---------- */
.page-about .about-cta {
  width: var(--shell);
  box-sizing: border-box;
  margin: 0 auto clamp(56px, 8vw, 108px);
  padding: clamp(28px, 5vw, 54px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(130% 150% at 100% 0%, rgba(232, 182, 90, 0.2), transparent 62%),
    var(--ink-800);
  border: 1px solid rgba(232, 182, 90, 0.26);
}

.page-about .about-cta-eyebrow {
  margin: 0;
  color: var(--gold);
  letter-spacing: 0.2em;
  font-size: 11.5px;
}

.page-about .about-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.8vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  margin: 12px 0 14px;
  color: var(--white);
}

.page-about .about-cta-lede {
  margin: 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-cta-note {
  margin: 24px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.85;
  color: var(--faint);
}

.page-about .about-cta-note a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 182, 90, 0.4);
}

.page-about .about-cta-mail {
  color: var(--gold-soft);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 760px) {
  .page-about .about-rooms li {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    column-gap: 18px;
    row-gap: 6px;
  }

  .page-about .about-rooms .tag {
    grid-row: span 2;
    align-self: start;
    margin-top: 2px;
  }

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

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: center;
  }

  .page-about .about-hero-media::before {
    content: "";
    position: absolute;
    left: -12px;
    top: 8%;
    bottom: 12%;
    width: 3px;
    border-radius: var(--radius-pill);
    background: linear-gradient(180deg, var(--teal) 0 20%, var(--white) 20% 40%, var(--red) 40% 60%, var(--green) 60% 80%, var(--yellow) 80% 100%);
    opacity: 0.65;
    pointer-events: none;
  }
}

@media (min-width: 960px) {
  .page-about .about-body {
    grid-template-columns: 208px minmax(0, 1fr);
    column-gap: clamp(32px, 5vw, 68px);
    align-items: start;
  }

  .page-about .about-toc {
    position: sticky;
    top: var(--about-sticky);
  }

  .page-about .about-toc ol {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    border-bottom: 0;
    border-left: 1px solid var(--line);
    padding-bottom: 0;
  }

  .page-about .about-toc a {
    white-space: normal;
    padding: 10px 0 10px 16px;
    margin-left: -1px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    font-size: 14px;
    line-height: 1.45;
    background: transparent;
  }

  .page-about .about-toc a:hover,
  .page-about .about-toc a[aria-current="location"] {
    color: var(--gold);
    background: transparent;
    border-left-color: var(--gold);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-rooms li,
  .page-about .about-toc a {
    transition: none;
  }

  .page-about .about-rooms li:hover {
    transform: none;
  }
}
<<<END>>>