/* ===== 品牌文化 / page-about ===== */

.page-about {
  --pa-rail: 92px;
  background: var(--bg);
  color: var(--text);
  overflow-x: clip;
}

.page-about .breadcrumb {
  padding-top: 14px;
  padding-bottom: 6px;
  font-size: 13px;
  color: var(--text-muted);
}

.page-about a:focus-visible,
.page-about button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 38px 0 54px;
  background:
    radial-gradient(120% 100% at 92% -10%, rgba(198, 255, 61, .17), transparent 55%),
    radial-gradient(80% 90% at 0% 100%, rgba(255, 122, 47, .13), transparent 60%),
    linear-gradient(175deg, var(--ink-700) 0%, var(--ink-900) 74%);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(198, 255, 61, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198, 255, 61, .05) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(90% 80% at 72% 18%, #000 0%, transparent 76%);
  mask-image: radial-gradient(90% 80% at 72% 18%, #000 0%, transparent 76%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 46px;
  background: var(--bg);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  pointer-events: none;
}

.page-about .about-hero__shell {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-about .about-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(31px, 6vw, 62px);
  line-height: 1.06;
  letter-spacing: -.022em;
  color: var(--text);
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--accent);
}

.page-about .about-hero__lede {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.76;
  color: var(--text-muted);
}

.page-about .about-hero__aside {
  display: grid;
  gap: 14px;
  align-content: end;
}

.page-about .about-hero__badge {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(198, 255, 61, .38);
  border-radius: 999px;
  padding: 7px 14px;
}

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

.page-about .about-hero__facts li {
  background: rgba(15, 38, 71, .94);
  padding: 15px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-about .about-hero__facts b {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.page-about .about-hero__facts span {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-muted);
}

/* ---------- 主体骨架 ---------- */

.page-about .about-body {
  display: grid;
  gap: 34px;
  padding-top: 52px;
  padding-bottom: 0;
}

.page-about .about-index {
  display: none;
}

.page-about .about-sections {
  display: grid;
  gap: clamp(52px, 7vw, 92px);
}

.page-about .about-block {
  position: relative;
  scroll-margin-top: 92px;
}

.page-about .about-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-block__head .index-number {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--accent);
}

.page-about .about-block__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3vw, 32px);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -.012em;
  color: var(--text);
}

.page-about .about-block__body {
  font-size: 17px;
  line-height: 1.78;
  color: var(--text-muted);
}

.page-about .about-block__body p {
  margin: 0 0 16px;
}

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

.page-about .about-block__body strong {
  color: var(--text);
  font-weight: 700;
}

/* 分栏（媒体位置可换） */

.page-about .about-split {
  display: grid;
  gap: 26px;
}

.page-about .about-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  box-shadow: var(--shadow-1);
}

.page-about .about-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-media--tall img {
  aspect-ratio: 10 / 7;
}

/* ---------- 团队块 ---------- */

.page-about .team-blocks {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-about .team-block {
  position: relative;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  transition: border-color .22s ease, transform .22s ease;
}

.page-about .team-block:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.page-about .team-block--editorial {
  border-radius: 26px 26px 26px 6px;
  background: linear-gradient(160deg, rgba(11, 59, 60, .92) 0%, var(--bg-soft) 78%);
}

.page-about .team-block--data {
  border-radius: 26px 6px 26px 26px;
  background: linear-gradient(160deg, rgba(50, 32, 79, .88) 0%, var(--bg-soft) 78%);
}

.page-about .team-block--frontend {
  border-radius: 6px 26px 26px 26px;
  background: linear-gradient(160deg, rgba(29, 63, 115, .6) 0%, var(--bg-soft) 78%);
}

.page-about .team-block__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--accent);
}

.page-about .team-block h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
}

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

/* ---------- 赛季运转 ---------- */

.page-about .about-season {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--jade-800) 0%, var(--ink-700) 100%);
}

.page-about .about-season__banner {
  position: relative;
  margin: 0;
  aspect-ratio: 14 / 6;
  max-height: 280px;
  overflow: hidden;
}

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

.page-about .about-season__banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 18, 35, .12) 0%, rgba(11, 59, 60, .88) 100%);
}

.page-about .about-season__inner {
  padding: 24px 20px 26px;
}

.page-about .about-season__lead {
  margin: 0 0 20px;
  font-size: 16.5px;
  line-height: 1.72;
  color: rgba(227, 234, 243, .82);
}

.page-about .season-band {
  display: grid;
  gap: 2px;
  background: rgba(198, 255, 61, .2);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-about .season-band__phase {
  position: relative;
  padding: 20px 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .season-band__phase::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--accent);
}

.page-about .season-band__phase:nth-child(1) {
  background: linear-gradient(180deg, rgba(11, 59, 60, .96), rgba(7, 18, 35, .96));
}

.page-about .season-band__phase:nth-child(2) {
  background: linear-gradient(180deg, rgba(15, 38, 71, .96), rgba(7, 18, 35, .96));
}

.page-about .season-band__phase:nth-child(2)::before {
  background: var(--orange-500);
}

.page-about .season-band__phase:nth-child(3) {
  background: linear-gradient(180deg, rgba(29, 63, 115, .94), rgba(7, 18, 35, .96));
}

.page-about .season-band__phase:nth-child(4) {
  background: linear-gradient(180deg, rgba(11, 59, 60, .96), rgba(15, 38, 71, .96));
}

.page-about .season-band__phase:nth-child(4)::before {
  background: var(--orange-500);
}

.page-about .season-band__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--accent);
}

.page-about .season-band__phase h3 {
  margin: 0;
  font-size: 17.5px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
}

.page-about .season-band__phase p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.66;
  color: rgba(227, 234, 243, .76);
}

/* ---------- 版本时间轴 ---------- */

.page-about .version-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0 0 0 34px;
  position: relative;
}

.page-about .version-list::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--accent) 0%, rgba(198, 255, 61, .3) 42%, var(--line) 100%);
}

.page-about .version-list__item {
  position: relative;
  padding-bottom: 20px;
}

.page-about .version-list__item:last-child {
  padding-bottom: 0;
}

.page-about .version-list__item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 8px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(198, 255, 61, .13);
  transition: transform .2s ease;
}

.page-about .version-list__item:hover::before {
  transform: scale(1.06);
}

.page-about .version-list__card {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 18px 20px 20px;
  transition: border-color .22s ease, transform .22s ease;
}

.page-about .version-list__item:hover .version-list__card {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.page-about .version-list__ver {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--accent);
  border: 1px solid rgba(198, 255, 61, .34);
  border-radius: 999px;
  padding: 3px 11px;
  margin-bottom: 10px;
}

.page-about .version-list__card h3 {
  margin: 0 0 8px;
  font-size: 17.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

.page-about .version-list__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-muted);
}

/* ---------- 社区与伙伴 ---------- */

.page-about .community-panel {
  position: relative;
  border-radius: var(--radius-xl);
  padding: 28px 22px 30px;
  border: 1px solid var(--line);
  overflow: hidden;
  background:
    radial-gradient(105% 130% at 100% 0%, rgba(198, 255, 61, .17), transparent 58%),
    linear-gradient(150deg, var(--violet-800) 0%, var(--ink-700) 100%);
}

.page-about .community-panel::before {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(198, 255, 61, .2), transparent 72%);
  pointer-events: none;
}

.page-about .community-panel__lead {
  position: relative;
  margin: 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.76;
  color: rgba(227, 234, 243, .88);
}

.page-about .community-facts {
  position: relative;
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .community-facts li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.65;
  color: rgba(227, 234, 243, .76);
}

.page-about .community-facts b {
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.page-about .community-panel__note {
  position: relative;
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(227, 234, 243, .16);
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(227, 234, 243, .66);
}

/* ---------- 收束色带 ---------- */

.page-about .about-next {
  position: relative;
  margin-top: clamp(56px, 8vw, 96px);
  padding: clamp(70px, 9vw, 108px) 0;
  background:
    radial-gradient(80% 120% at 92% 50%, rgba(198, 255, 61, .15), transparent 62%),
    linear-gradient(112deg, var(--violet-800) 0%, var(--ink-700) 52%, var(--jade-800) 100%);
  clip-path: polygon(0 30px, 100% 0, 100% calc(100% - 30px), 0 100%);
}

.page-about .about-next__shell {
  display: grid;
  gap: 16px;
  max-width: 780px;
}

.page-about .about-next__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
}

.page-about .about-next h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.2vw, 42px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.018em;
  color: var(--white-50);
}

.page-about .about-next p {
  margin: 0;
  font-size: 17px;
  line-height: 1.74;
  color: rgba(227, 234, 243, .8);
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
}

.page-about .about-next .btn--ghost {
  border: 1px solid rgba(198, 255, 61, .45);
  color: var(--accent);
  background: transparent;
  transition: background-color .22s ease, color .22s ease, border-color .22s ease;
}

.page-about .about-next .btn--ghost:hover,
.page-about .about-next .btn--ghost:focus-visible {
  background: var(--accent);
  color: var(--ink-900);
  border-color: var(--accent);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-about .season-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-season__inner {
    padding: 28px 26px 32px;
  }

  .page-about .community-panel {
    padding: 34px 32px 36px;
  }

  .page-about .community-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 32px;
  }
}

@media (min-width: 840px) {
  .page-about .about-split {
    gap: 40px;
    align-items: start;
  }

  .page-about .about-split--media-last {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-about .about-split--media-first {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .page-about .team-blocks {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 18px;
    margin-top: 32px;
  }

  .page-about .team-block--editorial {
    grid-column: span 4;
  }

  .page-about .team-block--data {
    grid-column: span 2;
  }

  .page-about .team-block--frontend {
    grid-column: 2 / -1;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 52px 0 72px;
  }

  .page-about .about-hero__shell {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: 56px;
  }
}

@media (min-width: 1060px) {
  .page-about .about-body {
    grid-template-columns: var(--pa-rail) minmax(0, 1fr);
    gap: 60px;
    padding-top: 72px;
  }

  .page-about .about-index {
    display: block;
    position: sticky;
    top: 92px;
    align-self: start;
  }

  .page-about .about-index ol {
    list-style: none;
    margin: 0;
    padding: 2px 0 2px 16px;
    border-left: 1px solid var(--line);
    display: grid;
    gap: 16px;
  }

  .page-about .about-index a {
    position: relative;
    display: block;
    font-family: var(--font-mono);
    font-size: 11.5px;
    line-height: 1.45;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--text-muted);
    text-decoration: none;
    transition: color .22s ease;
  }

  .page-about .about-index a::before {
    content: "";
    position: absolute;
    left: -16px;
    top: 7px;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width .24s ease;
  }

  .page-about .about-index a:hover,
  .page-about .about-index a:focus-visible {
    color: var(--accent);
  }

  .page-about .about-index a:hover::before,
  .page-about .about-index a:focus-visible::before {
    width: 9px;
  }

  .page-about .about-block--w6 {
    max-width: 76%;
  }

  .page-about .about-block--w9 {
    max-width: 68%;
    margin-left: auto;
  }
}
<<<PAGE_CSS_END>>>