.page-about {
  --about-rail: 172px;
  background: var(--cream);
  color: var(--ink);
  padding-bottom: clamp(36px, 7vw, 88px);
  overflow-x: hidden;
}

.page-about .about-topbar {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(12px, 2vw, 20px) var(--gutter) 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 18px;
}

.page-about .about-topbar__note {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--brown);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(18px, 3.4vw, 40px) var(--gutter) clamp(34px, 6vw, 72px);
  display: grid;
  gap: clamp(28px, 5vw, 56px);
}

.page-about .about-hero__lede {
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--ink);
  margin: 0;
}

.page-about .about-hero h1 {
  margin: 0.18em 0 0.4em;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-weight: 900;
  font-size: clamp(2.6rem, 8vw, 5.2rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
}

.page-about .about-hero__line {
  display: block;
}

.page-about .about-hero__line--accent {
  color: var(--red);
}

.page-about .about-hero__stats {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: clamp(14px, 2.4vw, 20px) 0 0;
  border-top: var(--line-gold);
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 3vw, 34px);
}

.page-about .about-hero__stats li {
  display: grid;
  gap: 2px;
}

.page-about .about-hero__stats .num {
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  line-height: 1;
  color: var(--red);
  letter-spacing: 0.02em;
}

.page-about .about-hero__stats .num span {
  font-size: 0.5em;
  margin-left: 1px;
}

.page-about .about-hero__stats li > span:last-child {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--brown);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 28px);
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
}

.page-about .about-hero__figure .media {
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

.page-about .about-hero__figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--brown);
}

.page-about .about-hero__figure .chip-ring {
  position: absolute;
  top: -26px;
  right: -14px;
  width: 92px;
  height: 92px;
  z-index: 2;
  opacity: 0.9;
}

.page-about .about-hero__scribble {
  display: none;
  position: absolute;
  top: 6px;
  left: -32px;
  margin: 0;
  writing-mode: vertical-rl;
  font-size: 11px;
  letter-spacing: 0.34em;
  color: var(--brown);
}

/* ---------- 主体 ---------- */
.page-about .about-body {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-about .about-rail {
  margin-bottom: clamp(22px, 4vw, 36px);
}

.page-about .about-rail__kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--brown);
}

.page-about .about-rail__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-rail__list li {
  flex: none;
}

.page-about .about-rail__list a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  white-space: nowrap;
  padding: 8px 15px;
  border: var(--line-gold);
  border-radius: var(--r-pill);
  background: rgba(247, 240, 227, 0.72);
  color: var(--ink);
  font-size: 13px;
  text-decoration: none;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-about .about-rail__list a:hover,
.page-about .about-rail__list a:focus-visible {
  background: var(--red);
  border-color: var(--red);
  color: var(--champagne);
}

.page-about .about-rail__num {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-about .about-rail__list a:hover .about-rail__num,
.page-about .about-rail__list a:focus-visible .about-rail__num {
  color: var(--champagne);
}

/* ---------- 章节卡 ---------- */
.page-about .chapter {
  position: relative;
  background: var(--cream);
  border: 1px solid rgba(20, 16, 15, 0.08);
  border-radius: var(--r-lg);
  padding: clamp(22px, 3.4vw, 44px);
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-about .chapter--tint {
  background: var(--sand);
  border-color: rgba(212, 162, 76, 0.3);
}

.page-about .chapter--dark {
  background: var(--red-deep);
  border-color: rgba(212, 162, 76, 0.45);
  color: var(--cream);
}

.page-about .chapter__head {
  display: grid;
  gap: 4px 18px;
  margin-bottom: clamp(16px, 2.8vw, 26px);
}

.page-about .chapter__num {
  font-family: "Bebas Neue", "DIN Condensed", "Noto Sans SC", sans-serif;
  font-size: clamp(2.9rem, 7vw, 5rem);
  line-height: 0.82;
  letter-spacing: 0.02em;
  background: linear-gradient(160deg, var(--gold) 10%, var(--red) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-about .chapter--dark .chapter__num {
  background: linear-gradient(160deg, var(--champagne) 10%, var(--gold) 88%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-about .chapter h2 {
  margin: 0 0 6px;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-weight: 800;
  font-size: clamp(1.45rem, 3.2vw, 2.3rem);
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-about .chapter--dark h2 {
  color: var(--champagne);
}

.page-about .chapter__lede {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--brown);
}

.page-about .chapter--dark .chapter__lede {
  color: rgba(242, 217, 160, 0.82);
}

.page-about .chapter__body {
  font-size: 15.5px;
  line-height: 1.82;
}

.page-about .chapter__body > p {
  margin: 0 0 1em;
}

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

.page-about .chapter__body a {
  color: var(--red);
  text-decoration: none;
  border-bottom: 1px solid rgba(142, 27, 44, 0.4);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-about .chapter__body a:hover,
.page-about .chapter__body a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--gold);
}

.page-about .chapter--dark .chapter__body a {
  color: var(--champagne);
  border-bottom-color: rgba(242, 217, 160, 0.45);
}

.page-about .chapter--dark .chapter__body a:hover,
.page-about .chapter--dark .chapter__body a:focus-visible {
  color: #fff;
  border-bottom-color: var(--gold);
}

.page-about .chapter__intro {
  margin: 0 0 1em;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: rgba(242, 217, 160, 0.75);
}

/* ---------- 图片块 ---------- */
.page-about .about-figure {
  margin: clamp(18px, 3vw, 28px) 0 0;
}

.page-about .about-figure .media {
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid rgba(212, 162, 76, 0.35);
}

.page-about .about-figure figcaption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--brown);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 clamp(16px, 2.6vw, 24px);
  border-left: 1px solid rgba(212, 162, 76, 0.6);
  display: grid;
  gap: clamp(10px, 1.8vw, 16px);
}

.page-about .about-timeline__item {
  position: relative;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(16px, 2.6vw, 24px) - 5px);
  top: 16px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(212, 162, 76, 0.18);
}

.page-about .tl__summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 4px 0;
}

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

.page-about .tl__summary::after {
  content: "＋";
  margin-left: auto;
  font-size: 15px;
  color: var(--gold);
  transition: color var(--t-fast) var(--ease);
}

.page-about .tl[open] .tl__summary::after {
  content: "－";
  color: var(--red);
}

.page-about .tl__summary:hover::after {
  color: var(--red);
}

.page-about .tl__year {
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-weight: 800;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--red);
}

.page-about .tl__theme {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--brown);
}

.page-about .tl__body p {
  margin: 6px 0 4px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink);
}

/* ---------- 三条做法 ---------- */
.page-about .about-rules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.6vw, 24px);
}

.page-about .about-rules__item {
  display: grid;
  gap: 4px 18px;
  padding-left: 16px;
  border-left: 3px solid rgba(212, 162, 76, 0.55);
}

.page-about .about-rules__item h3 {
  margin: 0;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: 1.06rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--red-deep);
}

.page-about .about-rules__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  margin-bottom: clamp(16px, 2.6vw, 24px);
}

.page-about .team-ring {
  width: min(216px, 62vw);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(
    var(--gold) 0 32.4%,
    var(--red) 32.4% 70.6%,
    var(--red-deep) 70.6% 88.2%,
    var(--brown) 88.2% 100%
  );
  box-shadow: 0 18px 36px -28px rgba(20, 16, 15, 0.8);
}

.page-about .team-ring__core {
  width: 63%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: var(--cream);
  display: grid;
  place-content: center;
  gap: 2px;
  text-align: center;
  box-shadow: inset 0 0 0 1px rgba(212, 162, 76, 0.45);
}

.page-about .team-ring__core .num {
  font-size: clamp(1.9rem, 4vw, 2.4rem);
  line-height: 1;
  color: var(--red);
}

.page-about .team-ring__core span {
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--brown);
}

.page-about .team-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-about .team-legend li {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 2px 12px;
  padding: 11px 14px;
  border: 1px solid rgba(20, 16, 15, 0.1);
  border-radius: var(--r-md);
  background: rgba(247, 240, 227, 0.75);
  transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-about .team-legend li:hover,
.page-about .team-legend li:focus-within {
  border-color: var(--gold);
  transform: translateY(-2px);
}

.page-about .team-legend__swatch {
  grid-row: 1 / span 2;
  width: 12px;
  height: 12px;
  margin-top: 5px;
  border-radius: 3px;
}

.page-about .team-legend__swatch--gold {
  background: var(--gold);
}

.page-about .team-legend__swatch--red {
  background: var(--red);
}

.page-about .team-legend__swatch--deep {
  background: var(--red-deep);
}

.page-about .team-legend__swatch--brown {
  background: var(--brown);
}

.page-about .team-legend__name {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
}

.page-about .team-legend__note {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--brown);
}

/* ---------- 审核卡牌 ---------- */
.page-about .audit-stack {
  display: grid;
  gap: 13px;
}

.page-about .audit-card {
  background: var(--cream);
  border: 1px solid rgba(212, 162, 76, 0.55);
  border-radius: var(--r-md);
  padding: 15px 17px;
  box-shadow: var(--shadow-card);
  transition: transform var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease);
}

.page-about .audit-card:nth-child(1) {
  transform: rotate(-0.8deg);
}

.page-about .audit-card:nth-child(2) {
  transform: rotate(0.7deg);
}

.page-about .audit-card:nth-child(3) {
  transform: rotate(-0.4deg);
}

.page-about .audit-card:hover,
.page-about .audit-card[open] {
  transform: rotate(0deg) translateY(-2px);
  border-color: var(--gold);
}

.page-about .audit-card__summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-about .audit-card__summary::-webkit-details-marker {
  display: none;
}

.page-about .audit-card__step {
  flex: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--red);
  color: var(--champagne);
  font-size: 12px;
  letter-spacing: 0;
}

.page-about .audit-card__name {
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.page-about .audit-card__summary::after {
  content: "＋";
  margin-left: auto;
  font-size: 17px;
  color: var(--gold);
  transition: color var(--t-fast) var(--ease);
}

.page-about .audit-card[open] .audit-card__summary::after {
  content: "－";
  color: var(--red);
}

.page-about .audit-card p {
  margin: 10px 0 2px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--brown);
}

/* ---------- 赛事 ---------- */
.page-about .event-grid {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(16px, 2.6vw, 22px);
}

.page-about .event-card {
  padding: 15px 17px;
  border: var(--line-gold);
  border-radius: var(--r-md);
  background: rgba(247, 240, 227, 0.78);
  transition: background var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-about .event-card:hover {
  background: var(--cream);
  transform: translateY(-2px);
}

.page-about .event-card h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--red-deep);
}

.page-about .event-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--brown);
}

/* ---------- 合作 CTA ---------- */
.page-about .about-cta {
  position: relative;
  overflow: hidden;
  margin-top: clamp(28px, 4.5vw, 52px);
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid rgba(212, 162, 76, 0.55);
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--red) 0%, var(--red-deep) 100%);
  color: var(--cream);
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 1px solid rgba(212, 162, 76, 0.4);
  box-shadow: 0 0 0 26px rgba(212, 162, 76, 0.1), 0 0 0 54px rgba(212, 162, 76, 0.06);
  pointer-events: none;
}

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

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

.page-about .about-cta h2 {
  margin: 8px 0 12px;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-weight: 900;
  font-size: clamp(1.6rem, 3.6vw, 2.6rem);
  line-height: 1.2;
  color: var(--champagne);
}

.page-about .about-cta p {
  max-width: 36em;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(247, 240, 227, 0.88);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .about-cta .btn--outline {
  color: var(--champagne);
  border-color: rgba(242, 217, 160, 0.65);
}

.page-about .about-cta .btn--outline:hover,
.page-about .about-cta .btn--outline:focus-visible {
  background: rgba(242, 217, 160, 0.14);
  color: #fff;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .about-rules__item {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: start;
    padding-left: 18px;
  }

  .page-about .chapter__head {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: end;
  }

  .page-about .event-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 760px) {
  .page-about .team-grid {
    grid-template-columns: 216px minmax(0, 1fr);
    align-items: center;
  }

  .page-about .team-ring {
    margin: 0;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-about .about-hero__figure {
    margin-top: -16px;
  }

  .page-about .about-hero__scribble {
    display: block;
  }

  .page-about .about-body {
    display: grid;
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 62px);
    align-items: start;
  }

  .page-about .about-rail {
    position: sticky;
    top: 92px;
    margin-bottom: 0;
  }

  .page-about .about-rail__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 6px;
    margin-top: 14px;
  }

  .page-about .about-rail__list a {
    width: 100%;
    padding: 10px 14px;
    justify-content: flex-start;
  }
}
<<<END>>>