/* ==================== 品牌文化页 · 页面作用域 ==================== */
.page-about {
  --about-gap: 28px;
}

/* ---------- 面包屑上间距 ---------- */
.page-about .crumbs {
  margin: 24px 0 8px;
}

/* ---------- 首屏：不对称分栏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 16px 0 52px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 22%, rgba(124, 77, 255, 0.22), transparent 55%),
    radial-gradient(circle at 12% 78%, rgba(34, 224, 192, 0.12), transparent 50%);
  pointer-events: none;
  z-index: -1;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-hero__copy h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 7.2vw, 54px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 18px 0 20px;
  max-width: 16ch;
}

.page-about .about-hero__lead {
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--text-dim);
  max-width: 56ch;
  margin: 0;
}

.page-about .about-hero__toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-about .about-hero__toc .chip {
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-hero__toc .chip:hover,
.page-about .about-hero__toc .chip:focus-visible {
  border-color: var(--violet-soft);
  background: rgba(124, 77, 255, 0.16);
  color: var(--text);
}

.page-about .about-hero__media {
  margin: 0;
  border-radius: 24px 24px 24px 8px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

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

/* ---------- 阶段带 ---------- */
.page-about .about-stages {
  padding: 40px 0 12px;
  position: relative;
}

.page-about .about-stages__title {
  font-family: var(--font-display);
  font-size: clamp(20px, 3.6vw, 26px);
  font-weight: 700;
  color: var(--text);
  margin: 0 0 6px;
}

.page-about .about-stages__lead {
  font-size: 14px;
  color: var(--text-dim);
  margin: 0;
}

.page-about .about-stages__track {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding: 22px 20px 30px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-stages__track::-webkit-scrollbar {
  height: 6px;
}

.page-about .about-stages__track::-webkit-scrollbar-track {
  background: transparent;
}

.page-about .about-stages__track::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 3px;
}

.page-about .stage-block {
  flex: 0 0 auto;
  width: var(--stage-w, 200px);
  scroll-snap-align: start;
  padding: 18px 18px 22px;
  min-height: 148px;
  border-radius: 22px 22px 22px 6px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--ink-2) 0%, var(--ink-3) 100%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: flex-end;
}

.page-about .stage-block__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--text-dim);
}

.page-about .stage-block__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
}

.page-about .stage-block__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-about .stage-block--1 { --stage-w: 180px; border-top: 3px solid var(--teal); }
.page-about .stage-block--2 { --stage-w: 250px; border-top: 3px solid var(--violet); }
.page-about .stage-block--3 { --stage-w: 220px; border-top: 3px solid var(--gold); }
.page-about .stage-block--4 { --stage-w: 270px; border-top: 3px solid var(--violet-soft); }

/* ---------- 章节通用 ---------- */
.page-about .about-chapter {
  position: relative;
  padding: 56px 0 44px;
}

.page-about .about-chapter::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: 52px;
  background: linear-gradient(90deg, var(--line), transparent 82%);
}

.page-about .about-chapter .section-head {
  margin-bottom: 32px;
}

.page-about .about-chapter .section-title {
  font-family: var(--font-display);
  font-size: clamp(24px, 5vw, 36px);
  font-weight: 800;
  line-height: 1.18;
  color: var(--text);
  margin: 8px 0 12px;
  max-width: 20ch;
}

.page-about .about-chapter .section-lead {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--text-dim);
  max-width: 52ch;
  margin: 0;
}

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

.page-about .about-chapter__after {
  margin-top: 28px;
}

.page-about .about-chapter .prose p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-dim);
  margin: 0 0 16px;
  max-width: 66ch;
}

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

.page-about .about-chapter .prose a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px dashed rgba(34, 224, 192, 0.45);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-chapter .prose a:hover,
.page-about .about-chapter .prose a:focus-visible {
  color: var(--violet-soft);
  border-bottom-color: var(--violet-soft);
}

/* ---------- 02 规则章节：文图并排 ---------- */
.page-about .about-chapter__body--duo {
  display: grid;
  gap: 28px;
}

.page-about .about-chapter__fig {
  margin: 0;
  border-radius: 22px 22px 22px 8px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

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

/* ---------- 03 团队表 ---------- */
.page-about .about-team-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
}

.page-about .about-team {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-about .about-team__caption {
  text-align: left;
  padding: 16px 18px 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--text-dim);
}

.page-about .about-team th,
.page-about .about-team td {
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.62;
}

.page-about .about-team thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
}

.page-about .about-team tbody th {
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
}

.page-about .about-team tbody td {
  color: var(--text-dim);
}

.page-about .about-team td.mono {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--teal);
  width: 72px;
  white-space: nowrap;
}

.page-about .about-team tbody tr {
  transition: background 0.2s var(--ease);
}

.page-about .about-team tbody tr:hover {
  background: rgba(124, 77, 255, 0.09);
}

.page-about .about-team tbody tr:last-child th,
.page-about .about-team tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- 04 赛季结构 ---------- */
.page-about .about-chapter--season {
  position: relative;
}

.page-about .season-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 4px;
}

.page-about .season-node {
  flex: 1 1 96px;
  min-width: 92px;
  border-radius: 14px;
  border: 1px solid var(--line);
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--ink-2);
}

.page-about .season-node--a {
  border-top: 3px solid var(--violet);
}

.page-about .season-node--b {
  border-top: 3px solid var(--teal);
  background: rgba(34, 224, 192, 0.06);
}

.page-about .season-node__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--text-dim);
}

.page-about .season-node__num {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
  color: var(--text);
}

.page-about .season-node--b .season-node__num {
  color: var(--teal);
}

.page-about .season-node__unit {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
}

/* ---------- 横向主题带 ---------- */
.page-about .about-community {
  position: relative;
  margin: 12px 0 24px;
}

.page-about .about-community__band {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: 22px 22px 22px 8px;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-about .about-community__band img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  max-height: 420px;
}

.page-about .about-community__band figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 20px 22px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--text);
  background: linear-gradient(180deg, transparent, rgba(11, 10, 31, 0.92));
}

/* ---------- 05 社群地图 ---------- */
.page-about .about-chapter__body--reverse {
  direction: ltr;
}

.page-about .about-map-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  padding: 20px 18px 16px;
}

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

.page-about .about-map__dots circle {
  fill: var(--line);
}

.page-about .about-map__hot circle {
  fill: var(--teal);
  filter: drop-shadow(0 0 6px rgba(34, 224, 192, 0.65));
}

.page-about .about-map__caption {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

/* ---------- 06 三件事 ---------- */
.page-about .about-values {
  display: grid;
  gap: 16px;
}

.page-about .about-value {
  padding: 26px 22px 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(175deg, var(--ink-2) 0%, var(--ink-3) 100%);
}

.page-about .about-value--a { border-top: 3px solid var(--violet); }
.page-about .about-value--b { border-top: 3px solid var(--teal); }
.page-about .about-value--c { border-top: 3px solid var(--gold); }

.page-about .about-value__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  display: block;
  margin-bottom: 12px;
}

.page-about .about-value h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 12px;
  line-height: 1.3;
}

.page-about .about-value p {
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
  margin: 0;
}

.page-about .about-value--a h3 { color: var(--violet-soft); }
.page-about .about-value--b h3 { color: var(--teal); }
.page-about .about-value--c h3 { color: var(--gold); }

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero {
    padding: 28px 0 68px;
  }

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

  .page-about .about-chapter {
    padding: 72px 0 56px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 44px;
  }

  .page-about .about-chapter__body--duo {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
    gap: 40px;
  }

  .page-about .about-chapter__body--reverse {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-about .about-chapter__body--duo .about-chapter__fig {
    position: sticky;
    top: 88px;
  }

  .page-about .about-stages__track {
    padding: 24px max(20px, calc((100vw - var(--shell-max)) / 2 + 20px)) 34px;
  }

  .page-about .about-stages__title,
  .page-about .about-stages__lead {
    padding-left: max(0px, calc((100vw - var(--shell-max)) / 2 - 20px + 20px));
  }
}

@media (min-width: 1100px) {
  .page-about .about-chapter .section-title {
    max-width: 22ch;
  }

  .page-about .season-node {
    flex: 1 1 110px;
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__toc .chip,
  .page-about .about-chapter .prose a,
  .page-about .about-team tbody tr {
    transition: none;
  }

  .page-about .about-stages__track {
    scroll-snap-type: none;
  }
}
</main>