.page-about {
  background: var(--grass-900);
  color: var(--paper);
  padding-bottom: 64px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  margin: 16px 0 32px;
}
.page-about .about-hero__frame {
  position: relative;
  border: 1px solid rgba(255, 106, 19, 0.5);
  padding: 32px 20px 28px;
  background: linear-gradient(140deg, rgba(30, 90, 64, 0.62) 0%, rgba(6, 26, 58, 0.55) 100%);
}
.page-about .about-hero__frame::before,
.page-about .about-hero__frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--orange);
}
.page-about .about-hero__frame::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
}
.page-about .about-hero__frame::after {
  right: -1px;
  bottom: -1px;
  border-top: none;
  border-left: none;
}
.page-about .about-hero__season {
  position: absolute;
  top: -9px;
  left: 16px;
  padding: 0 10px;
  background: var(--grass-900);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--orange);
}
.page-about h1 {
  margin: 10px 0 16px;
  font-size: clamp(27px, 6.4vw, 56px);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.02em;
  max-width: 20ch;
}
.page-about .about-hero__lede {
  max-width: 60ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.82);
}
.page-about .about-hero__ledger {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-about .about-hero__ledger-item {
  border-left: 2px solid var(--orange);
  padding-left: 12px;
}
.page-about .about-hero__ledger-value {
  display: block;
  font-family: var(--mono);
  font-size: 28px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--neon);
}
.page-about .about-hero__ledger-label {
  display: block;
  margin-top: 7px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 布局 ---------- */
.page-about .about-layout {
  display: grid;
  gap: 26px;
}
.page-about .about-flow {
  min-width: 0;
}

/* ---------- 章节索引 ---------- */
.page-about .about-index {
  border-top: 2px solid var(--orange);
  padding-top: 12px;
}
.page-about .about-index__title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted);
}
.page-about .about-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-about .about-index__list::-webkit-scrollbar {
  display: none;
}
.page-about .about-index__link {
  display: block;
  white-space: nowrap;
  padding: 7px 12px;
  border-radius: 3px;
  font-size: 13.5px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.22s var(--ease), background 0.22s var(--ease), box-shadow 0.22s var(--ease);
}
.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  color: var(--paper);
  background: rgba(255, 106, 19, 0.1);
}
.page-about .about-index__link[aria-current="page"] {
  color: var(--neon);
  background: rgba(255, 106, 19, 0.14);
  box-shadow: inset 0 -2px 0 var(--orange);
}

/* ---------- 章节通用 ---------- */
.page-about .about-chapter {
  padding: 38px 0 6px;
  border-top: 1px solid var(--line);
}
.page-about .about-chapter:first-child {
  border-top: none;
  padding-top: 0;
}
.page-about .about-chapter--deep {
  border-top-color: transparent;
  background: linear-gradient(160deg, var(--grass-800), var(--grass-900));
  padding: 30px 18px 26px;
  margin: 26px 0;
}
.page-about .about-chapter__index {
  display: inline-block;
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--orange);
}
.page-about .about-chapter__title {
  margin: 0 0 18px;
  max-width: 22ch;
  font-size: clamp(22px, 4.4vw, 38px);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-about .about-chapter__body p,
.page-about .about-chapter__lede {
  max-width: 62ch;
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.78);
}
.page-about .about-chapter__body > p:last-child,
.page-about .about-chapter__lede:last-child {
  margin-bottom: 0;
}
.page-about .about-chapter__body--tail {
  margin-top: 22px !important;
  font-size: 15px !important;
  color: rgba(244, 241, 234, 0.66) !important;
}
.page-about .about-link {
  color: var(--orange-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 131, 57, 0.5);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-about .about-link:hover,
.page-about .about-link:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* ---------- 团队分工 ---------- */
.page-about .about-crew {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}
.page-about .about-crew__item {
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 18px 22px;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}
.page-about .about-crew__item:hover {
  background: var(--glass-2);
  transform: translateY(-3px);
}
.page-about .about-crew__num {
  display: block;
  font-family: var(--mono);
  font-size: 40px;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--neon);
}
.page-about .about-crew__item h3 {
  margin: 12px 0 8px;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-about .about-crew__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 241, 234, 0.68);
}

/* ---------- 图 ---------- */
.page-about .about-figure {
  margin: 26px 0 0;
}
.page-about .about-figure__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.page-about .about-figure__cap {
  display: block;
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--muted);
}

/* ---------- 现场记录流程 ---------- */
.page-about .about-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}
.page-about .about-steps__item {
  position: relative;
  padding: 0 0 26px 26px;
  border-left: 1px solid rgba(255, 106, 19, 0.32);
}
.page-about .about-steps__item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}
.page-about .about-steps__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--orange);
}
.page-about .about-steps__item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-about .about-steps__item p {
  max-width: 58ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(244, 241, 234, 0.72);
}

/* ---------- 照片墙 ---------- */
.page-about .about-wall {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}
.page-about .about-wall__shot {
  position: relative;
  margin: 0;
}
.page-about .about-wall__shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.page-about .about-wall__tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 9px;
  background: var(--orange);
  color: #101210;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  transform: rotate(-2.5deg);
}
.page-about .about-wall__cap {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-about .about-partners__item {
  border-left: 2px solid var(--orange);
  padding: 4px 0 4px 14px;
}
.page-about .about-partners__num {
  display: block;
  font-family: var(--mono);
  font-size: 34px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--paper);
}
.page-about .about-partners__label {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--muted);
}
.page-about .about-partner-note {
  margin: 24px 0 0;
  padding: 18px 20px;
  background: linear-gradient(120deg, var(--blue-a), var(--blue-b));
  border-left: 3px solid var(--neon);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 241, 234, 0.88);
}

/* ---------- 赛季里程碑 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}
.page-about .about-timeline__item {
  position: relative;
  display: grid;
  gap: 8px;
  padding-bottom: 24px;
}
.page-about .about-timeline__item::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: rgba(244, 241, 234, 0.08);
}
.page-about .about-timeline__item:last-child::after {
  display: none;
}
.page-about .about-timeline__year {
  font-family: var(--mono);
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--orange);
}
.page-about .about-timeline__title,
.page-about .about-timeline__body h3 {
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-about .about-timeline__body p {
  max-width: 58ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 241, 234, 0.72);
}

/* ---------- 断点 ---------- */
@media (min-width: 600px) {
  .page-about .about-hero__frame {
    padding: 38px 32px 34px;
  }
  .page-about .about-hero__ledger {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
  .page-about .about-partners {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
  .page-about .about-timeline__item {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 26px;
    padding-bottom: 28px;
  }
}

@media (min-width: 700px) {
  .page-about .about-crew {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-chapter--deep {
    padding: 38px 32px 34px;
  }
}

@media (min-width: 720px) {
  .page-about .about-wall {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: 20px;
  }
  .page-about .about-wall__shot--b {
    margin-top: 48px;
  }
}

@media (min-width: 960px) {
  .page-about .about-layout {
    grid-template-columns: 178px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
  .page-about .about-index {
    position: sticky;
    top: 92px;
  }
  .page-about .about-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-about .about-index__link {
    white-space: normal;
    padding: 8px 10px 8px 13px;
    border-left: 2px solid rgba(244, 241, 234, 0.14);
    border-radius: 0;
  }
  .page-about .about-index__link[aria-current="page"] {
    box-shadow: none;
    border-left-color: var(--orange);
  }
  .page-about .about-chapter {
    padding: 46px 0 6px;
  }
  .page-about .about-chapter:first-child {
    padding-top: 0;
  }
}
</main>