.page-about {
  --about-gap: clamp(18px, 3.6vw, 36px);
  --about-hair: rgba(22, 52, 76, 0.9);
  background: var(--ink-900);
  color: var(--text);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding-top: calc(var(--header-h) + clamp(26px, 5vw, 60px));
  padding-bottom: 0;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -18% -12% auto -12%;
  height: 76%;
  background:
    radial-gradient(48% 62% at 22% 16%, rgba(31, 224, 196, 0.16), transparent 68%),
    radial-gradient(42% 56% at 84% 4%, rgba(240, 178, 60, 0.12), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.page-about .about-hero .breadcrumb {
  margin-bottom: clamp(16px, 3vw, 28px);
}

.page-about h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: var(--fs-64);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 18ch;
}

.page-about h1 em {
  font-style: normal;
  color: var(--neon-soft);
}

.page-about .about-hero-lead {
  margin: clamp(16px, 3vw, 26px) 0 0;
  max-width: 40ch;
  font-size: var(--fs-20);
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-hero-stats {
  margin-top: clamp(24px, 4vw, 40px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-hair);
  border: 1px solid var(--line-hair);
}

.page-about .about-hero-stat {
  background: var(--ink-900);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-hero-num {
  font-size: var(--fs-40);
  font-weight: 700;
  line-height: 1;
  color: var(--neon);
  letter-spacing: -0.02em;
}

.page-about .about-hero-key {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-about .about-hero-fig {
  position: relative;
  margin: clamp(26px, 5vw, 54px) 0 0;
  overflow: hidden;
  border-top: 1px solid var(--line-neon);
  border-bottom: 1px solid var(--line-neon);
}

.page-about .about-hero-fig::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), transparent 56%, var(--gold));
  opacity: 0.9;
}

.page-about .about-hero-fig img {
  display: block;
  width: 100%;
  height: clamp(200px, 40vw, 440px);
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}

/* ---------- 通用小件 ---------- */
.page-about .about-lead {
  margin: 14px 0 0;
  max-width: 44ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-figure {
  margin: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line-hair);
}

.page-about .about-figure figcaption,
.page-about .about-figure-cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 起点 ---------- */
.page-about .about-origin-grid {
  display: grid;
  gap: clamp(22px, 4vw, 38px);
}

.page-about .about-origin-body p {
  margin: 0 0 1em;
  max-width: 36em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-origin-body p:first-child {
  color: var(--text);
}

.page-about .about-origin-note {
  padding: clamp(20px, 3vw, 30px);
  color: var(--ink-900);
  transform: rotate(-1.2deg);
  box-shadow: 8px 10px 0 rgba(22, 52, 76, 0.55);
}

.page-about .about-origin-note p {
  margin: 0;
  font-size: var(--fs-20);
  line-height: 1.65;
  font-weight: 700;
}

.page-about .about-note-label {
  display: block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-700);
  font-weight: 400;
}

/* ---------- 数字带 ---------- */
.page-about .about-band {
  margin: clamp(26px, 4vw, 44px) 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-hair);
  border-top: 1px solid var(--neon);
  border-bottom: 1px solid var(--line-hair);
}

.page-about .about-band-cell {
  background: var(--ink-800);
  padding: clamp(16px, 2.6vw, 26px);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .about-band-num {
  font-size: clamp(1.5rem, 4.4vw, 2.35rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--neon-soft);
}

.page-about .about-band-key {
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 空间清单 ---------- */
.page-about .about-spaces-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-40);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-about .about-spaces-head p {
  margin: 10px 0 22px;
  max-width: 38ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-space-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-hair);
  border: 1px solid var(--line-hair);
}

.page-about .about-space {
  background: var(--ink-900);
  padding: clamp(16px, 2.4vw, 24px);
  display: grid;
  gap: 6px;
  transition: background 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-about .about-space:hover {
  background: var(--ink-800);
  box-shadow: inset 0 0 0 1px rgba(31, 224, 196, 0.38);
}

.page-about .about-space-idx {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--neon);
}

.page-about .about-space h4 {
  margin: 0;
  font-size: var(--fs-20);
  font-weight: 800;
}

.page-about .about-space p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 场馆图与分布示意 ---------- */
.page-about .about-venues-media {
  margin-top: clamp(24px, 4vw, 40px);
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-diagram {
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  border: 1px solid var(--line-hair);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-900));
}

.page-about .about-diagram svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-diagram-cap {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

/* ---------- 接待流程 ---------- */
.page-about .about-service-grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-about .about-steps {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
}

.page-about .about-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-top: 1px solid var(--line-hair);
}

.page-about .about-step:last-child {
  border-bottom: 1px solid var(--line-hair);
}

.page-about .about-step-idx {
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--neon);
}

.page-about .about-step h3 {
  margin: 0 0 6px;
  font-size: var(--fs-20);
  font-weight: 800;
}

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

.page-about .about-service-fig {
  margin: 0;
}

.page-about .about-service-fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line-hair);
}

/* ---------- 团队 ---------- */
.page-about .about-team-grid {
  margin-top: clamp(22px, 4vw, 36px);
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-team-card {
  padding: clamp(20px, 3vw, 28px);
  display: grid;
  gap: 10px;
  align-content: start;
  border-left: 2px solid var(--line-neon);
}

.page-about .about-team-card h3 {
  margin: 0;
  font-size: var(--fs-20);
  font-weight: 800;
}

.page-about .about-team-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-team-meta {
  margin: 6px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line-hair);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--neon-soft);
}

/* ---------- 时间刻度 ---------- */
.page-about .about-track-scale {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-track-scale::-webkit-scrollbar {
  display: none;
}

.page-about .about-track-tick a {
  display: block;
  white-space: nowrap;
  padding: 6px 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-about .about-track-tick a:hover,
.page-about .about-track-tick a:focus-visible {
  color: var(--neon-soft);
  border-bottom-color: var(--neon);
}

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

.page-about .about-track-item {
  position: relative;
  padding: 20px 0 20px 26px;
  border-top: 1px solid var(--line-hair);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-about .about-track-item:first-child {
  border-top-color: var(--line-neon);
}

.page-about .about-track-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  width: 8px;
  height: 8px;
  background: var(--neon);
  transform: rotate(45deg);
  transition: background 200ms var(--ease);
}

.page-about .about-track-item:target::before {
  background: var(--gold);
}

.page-about .about-track-year {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--neon);
}

.page-about .about-track-item h3 {
  margin: 0 0 6px;
  font-size: var(--fs-20);
  font-weight: 800;
}

.page-about .about-track-item p {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 合作 ---------- */
.page-about .about-partners {
  border-top: 1px solid var(--line-neon);
  background: linear-gradient(180deg, rgba(11, 35, 56, 0.92), rgba(5, 20, 31, 1));
}

.page-about .about-partners-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .about-partners-main .btn {
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .about-partners-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-hair);
  border: 1px solid var(--line-hair);
}

.page-about .about-partners-list li {
  background: var(--ink-900);
  padding: 18px 20px;
  display: grid;
  gap: 8px;
}

.page-about .about-partner-kind {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-about .about-partners-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 收尾 ---------- */
.page-about .about-next {
  border-top: 1px solid var(--line-hair);
}

.page-about .about-next-inner {
  display: grid;
  gap: 16px;
}

.page-about .about-next-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-40);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.page-about .about-next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 900px) {
  .page-about .about-origin-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    align-items: start;
  }

  .page-about .about-origin-lead {
    grid-column: 1 / span 5;
  }

  .page-about .about-origin-body {
    grid-column: 6 / span 7;
    margin-top: 54px;
  }

  .page-about .about-origin-note {
    grid-column: 3 / span 4;
    margin-top: 10px;
  }

  .page-about .about-venues-media {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-service-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-service-fig {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

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

  .page-about .about-team-card:nth-child(2) {
    margin-top: 32px;
  }

  .page-about .about-team-card:nth-child(3) {
    margin-top: 64px;
  }

  .page-about .about-track {
    display: grid;
    grid-template-columns: 132px minmax(0, 1fr);
    column-gap: clamp(20px, 4vw, 56px);
    align-items: start;
  }

  .page-about .about-track-scale {
    position: sticky;
    top: calc(var(--header-h) + 30px);
    display: grid;
    gap: 0;
    margin: 0;
    padding: 0;
    overflow: visible;
    border-left: 1px solid var(--line-hair);
  }

  .page-about .about-track-tick a {
    padding: 12px 0 12px 16px;
    border-bottom: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
  }

  .page-about .about-track-tick a:hover,
  .page-about .about-track-tick a:focus-visible {
    border-left-color: var(--neon);
  }

  .page-about .about-partners-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: start;
  }

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

  .page-about .about-next-inner .about-next-title,
  .page-about .about-next-inner .about-lead {
    grid-column: 1;
  }

  .page-about .about-next-actions {
    grid-column: 2;
    grid-row: 1 / span 3;
    align-self: end;
    margin-top: 0;
  }
}

@media (min-width: 1080px) {
  .page-about .about-space-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-space,
  .page-about .about-track-tick a,
  .page-about .about-track-item::before {
    transition: none;
  }

  .page-about .about-origin-note {
    transform: none;
  }
}