.page-about {
  --about-side: 250px;
  --about-rule: rgba(16, 36, 62, 0.14);
  background:
    radial-gradient(900px 420px at 88% -8%, rgba(217, 164, 65, 0.18), transparent 68%),
    radial-gradient(700px 380px at -6% 10%, rgba(15, 139, 122, 0.12), transparent 70%),
    var(--paper);
  color: var(--text);
}

.page-about .breadcrumb {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-about .about-intro {
  position: relative;
  padding: clamp(22px, 4vw, 48px) 0 clamp(28px, 5vw, 60px);
}

.page-about .about-intro::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--table-gold), var(--feather-teal) 50%, transparent);
}

.page-about .about-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--feather-teal-deep);
}

.page-about .about-title {
  margin: 0 0 20px;
  max-width: 22ch;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5.4vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--ink-blue);
}

.page-about .about-lede {
  max-width: 60ch;
  margin: 0 0 clamp(24px, 4vw, 36px);
}

.page-about .about-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 clamp(26px, 4vw, 42px);
  padding: 1px;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-facts li {
  background: var(--paper);
  padding: clamp(14px, 2.4vw, 20px);
}

.page-about .fact-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  font-weight: 700;
  color: var(--feather-teal-deep);
  line-height: 1.2;
}

.page-about .fact-label {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-14);
  color: var(--text);
  opacity: 0.72;
}

.page-about .about-toc {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-about .toc-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.62);
  color: var(--ink-blue);
  text-decoration: none;
  font-size: var(--fs-14);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-about .toc-item:hover,
.page-about .toc-item:focus-visible {
  transform: translateY(-2px);
  border-color: var(--feather-teal);
  box-shadow: var(--shadow-1);
}

.page-about .toc-num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--table-gold);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-chapter {
  display: grid;
  gap: clamp(18px, 3vw, 34px);
  padding: clamp(40px, 6vw, 76px) 0;
  border-top: 1px solid var(--line);
}

.page-about .about-chapter:first-of-type {
  border-top: 0;
}

.page-about .chapter-num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(2.1rem, 6vw, 3.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--table-gold);
}

.page-about .chapter-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.45rem, 3.4vw, 2.1rem);
  line-height: 1.28;
  color: var(--ink-blue);
}

.page-about .chapter-body {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  max-width: 74ch;
}

.page-about .chapter-body p {
  margin: 0;
  line-height: 1.85;
}

.page-about p.chapter-lede {
  font-family: var(--font-heading);
  font-size: clamp(1.05rem, 2vw, 1.24rem);
  line-height: 1.72;
  color: var(--feather-teal-deep);
}

.page-about .chapter-body a {
  color: var(--feather-teal-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 图 ---------- */
.page-about .figure {
  margin: 0;
}

.page-about .figure-frame {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--mist);
}

.page-about .figure-frame.is-wide {
  aspect-ratio: 2 / 1;
}

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

.page-about .figure-caption {
  margin-top: 10px;
  font-size: var(--fs-14);
  opacity: 0.72;
}

/* ---------- 理念矩阵 ---------- */
.page-about .ethos-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .ethos-card {
  background: var(--paper);
  padding: clamp(18px, 3vw, 28px);
}

.page-about .ethos-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.2em;
  color: var(--table-gold);
}

.page-about .ethos-title {
  margin: 8px 0 10px;
  font-family: var(--font-heading);
  font-size: var(--fs-20);
  color: var(--ink-blue);
}

.page-about .ethos-card p {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.8;
}

/* ---------- 面板 ---------- */
.page-about .panel {
  padding: clamp(20px, 3.6vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--mist);
}

.page-about .panel-title {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: var(--fs-20);
  color: var(--ink-blue);
}

.page-about .panel-ink {
  background: var(--ink-blue);
  border-color: transparent;
  color: #dce8e5;
}

.page-about .panel-ink .panel-title {
  color: var(--table-gold-soft);
}

.page-about .panel-ink a {
  color: var(--table-gold-soft);
}

.page-about .panel-gold {
  background: linear-gradient(150deg, var(--table-gold-soft) 0%, #fcf7ec 72%);
  border-color: #e8d6ab;
}

.page-about .panel-teal {
  background: var(--feather-teal-deep);
  border-color: transparent;
  color: #e6f2ef;
}

/* ---------- 赛季年表 ---------- */
.page-about .season-track {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .season-node {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid var(--about-rule);
}

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

.page-about .season-code {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--feather-teal-deep);
}

.page-about .season-title {
  margin: 0 0 6px;
  font-family: var(--font-heading);
  font-size: var(--fs-20);
  color: var(--ink-blue);
}

.page-about .season-node p {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.8;
}

/* ---------- 团队 ---------- */
.page-about .team-layout {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
}

.page-about .team-text {
  display: grid;
  gap: 14px;
}

.page-about .card-accent {
  padding: clamp(18px, 2.6vw, 26px);
}

.page-about .card-accent h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: var(--fs-20);
  color: var(--ink-blue);
}

.page-about .card-accent p {
  margin: 0;
  line-height: 1.8;
}

/* ---------- 荣誉 ---------- */
.page-about .honor-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .honor-badge {
  padding: 18px;
  border: 1px solid rgba(242, 210, 139, 0.28);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.07);
  transition: transform 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}

.page-about .honor-badge:hover,
.page-about .honor-badge:focus-within {
  transform: translateY(-4px);
  background: rgba(242, 210, 139, 0.14);
  border-color: var(--table-gold);
}

.page-about .honor-year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--table-gold-soft);
}

.page-about .honor-name {
  margin: 8px 0 0;
  font-family: var(--font-heading);
  font-size: var(--fs-16);
  line-height: 1.5;
  color: #ffffff;
}

.page-about .honor-more {
  max-height: 0;
  margin: 0;
  overflow: hidden;
  opacity: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  transition: max-height 0.3s ease, opacity 0.3s ease, margin-top 0.3s ease;
}

.page-about .honor-badge:hover .honor-more,
.page-about .honor-badge:focus-within .honor-more,
.page-about .honor-badge:focus .honor-more {
  max-height: 9rem;
  margin-top: 10px;
  opacity: 1;
}

/* ---------- 结尾 ---------- */
.page-about .about-cta {
  display: grid;
  gap: 14px;
  margin-top: clamp(36px, 6vw, 72px);
  padding: clamp(28px, 4vw, 44px) 0 clamp(40px, 6vw, 72px);
  border-top: 1px solid var(--line);
}

.page-about .about-cta-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  color: var(--ink-blue);
}

.page-about .about-cta-note {
  margin: 0;
  max-width: 52ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  opacity: 0.82;
}

.page-about .about-cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .about-toc {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .season-node {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 6px 22px;
    align-items: start;
  }
}

@media (min-width: 760px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 860px) {
  .page-about .team-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }
}

@media (min-width: 920px) {
  .page-about .about-toc {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-about .about-chapter {
    grid-template-columns: var(--about-side) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 80px);
    align-items: start;
  }

  .page-about .chapter-aside {
    position: sticky;
    top: 92px;
  }
}

@media (max-width: 759px) {
  .page-about .honor-more {
    max-height: none;
    margin-top: 10px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}