.page-about {
  --about-axis: 92px;
  --about-node: 11px;
  background: var(--char);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + clamp(48px, 8vw, 112px)) 0 clamp(48px, 7vw, 96px);
  background:
    radial-gradient(115% 88% at 84% 6%, rgba(200, 255, 61, .10), transparent 58%),
    linear-gradient(180deg, var(--ink) 0%, var(--char) 100%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: 14%;
  width: 64%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 20%, var(--lime) 80%, transparent);
  transform: rotate(-11deg);
  opacity: .55;
  pointer-events: none;
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
}

.page-about .about-crumb {
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-about .about-kicker {
  margin: 0 0 14px;
  color: var(--orange);
}

.page-about .about-title {
  margin: 0 0 clamp(18px, 3vw, 32px);
  max-width: 17ch;
  font-size: clamp(2.6rem, 8.2vw, 6.2rem);
  line-height: .98;
  letter-spacing: -0.01em;
}

.page-about .about-em {
  color: var(--lime);
}

.page-about .about-lede {
  max-width: 58ch;
  margin: 0;
  color: var(--pale);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.8;
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(32px, 5vw, 56px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-stats li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 18px 22px;
  background: var(--ink);
}

.page-about .about-num {
  color: var(--lime);
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  line-height: 1;
}

.page-about .about-stat-label {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--mist);
}

/* ---------- 主体流 ---------- */

.page-about .about-stream {
  padding: clamp(48px, 7vw, 96px) 0 clamp(56px, 8vw, 120px);
  background: var(--char);
}

.page-about .about-records {
  position: relative;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, var(--gutter));
}

.page-about .record {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
  padding-block: clamp(34px, 5vw, 68px);
  border-top: 1px solid rgba(46, 58, 52, .55);
}

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

.page-about .record-axis {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-about .record-node {
  display: block;
  flex: none;
  width: var(--about-node);
  height: var(--about-node);
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(200, 255, 61, .12);
}

.page-about .record-tick {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--mist);
}

.page-about .record-body h2 {
  margin: 0 0 clamp(14px, 2vw, 22px);
  max-width: 24ch;
}

.page-about .record-body > p {
  max-width: 64ch;
  margin: 0 0 16px;
  color: var(--pale);
  font-size: 17px;
  line-height: 1.78;
}

.page-about .record-body > p:last-child {
  margin-bottom: 0;
}

.page-about .record-note {
  margin-top: 6px !important;
  padding-left: 14px;
  border-left: 3px solid var(--amber);
  color: var(--mist) !important;
  font-size: 15px !important;
}

/* ---------- 两栏图文 ---------- */

.page-about .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 44px);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-about .split-main {
  min-width: 0;
}

.page-about .media-frame {
  margin: 0;
  min-width: 0;
}

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

/* ---------- 编号卡 ---------- */

.page-about .code-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 3vw, 28px);
  background: var(--graphite);
  border-left: 3px solid var(--orange);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-about .code-label {
  color: var(--mist);
}

.page-about .code-value {
  align-self: flex-start;
  padding: 2px 0;
  background: none;
  border: 0;
  cursor: pointer;
  color: var(--white);
  font-family: var(--font-data);
  font-size: clamp(1.15rem, 3.6vw, 1.9rem);
  letter-spacing: .06em;
  border-bottom: 2px solid var(--line);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-about .code-value:hover,
.page-about .code-value:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-about .code-hint {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .code-parts {
  display: grid;
  gap: 1px;
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  background: var(--line);
}

.page-about .code-part {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 16px 18px;
  background: var(--ink);
}

.page-about .code-part dt {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-about .code-part dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 团队四栏 ---------- */

.page-about .team-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(20px, 3vw, 32px);
  background: var(--line);
}

.page-about .team-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--graphite);
  border-top: 2px solid transparent;
  transition: background .22s var(--ease), opacity .22s var(--ease), border-color .22s var(--ease);
}

.page-about .team-index {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-about .team-name {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--white);
}

.page-about .team-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

@media (hover: hover) {
  .page-about .team-row:hover .team-col {
    opacity: .42;
  }

  .page-about .team-row .team-col:hover {
    opacity: 1;
    background: var(--ink);
    border-top-color: var(--lime);
  }
}

/* ---------- 标签矩阵 ---------- */

.page-about .tag-matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(22px, 3vw, 36px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
}

.page-about .tag-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 16px 22px;
  background: var(--ink);
  transition: background .2s var(--ease);
}

.page-about .tag-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--lime);
  transition: width .24s var(--ease);
}

.page-about .tag-card:hover {
  background: var(--graphite);
}

.page-about .tag-card:hover::before {
  width: 100%;
}

.page-about .tag-card-name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--white);
}

.page-about .tag-card-note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
  transition: color .2s var(--ease);
}

.page-about .tag-card:hover .tag-card-note {
  color: var(--pale);
}

/* ---------- 赛季时间线 ---------- */

.page-about .era-list {
  display: grid;
  gap: 0;
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .era-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

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

.page-about .era-when {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--lime);
}

.page-about .era-what h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--white);
}

.page-about .era-what p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 收尾 ---------- */

.page-about .about-next {
  position: relative;
  overflow: hidden;
  padding: clamp(52px, 8vw, 110px) 0 clamp(64px, 9vw, 130px);
  background:
    linear-gradient(180deg, var(--char) 0%, var(--ink) 100%);
}

.page-about .about-next::before {
  content: "";
  position: absolute;
  top: 18%;
  left: -8%;
  width: 52%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--orange) 65%, transparent);
  transform: rotate(-9deg);
  opacity: .5;
  pointer-events: none;
}

.page-about .about-next-inner {
  position: relative;
  z-index: 1;
}

.page-about .about-next-title {
  margin: 0 0 clamp(14px, 2vw, 22px);
  max-width: 22ch;
}

.page-about .about-next-lede {
  max-width: 60ch;
  margin: 0 0 clamp(26px, 4vw, 44px);
  color: var(--pale);
  font-size: 17px;
  line-height: 1.78;
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .code-part {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

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

@media (min-width: 720px) {
  .page-about .team-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-records::before {
    content: "";
    position: absolute;
    top: clamp(34px, 5vw, 68px);
    bottom: clamp(34px, 5vw, 68px);
    left: calc(clamp(20px, 4vw, var(--gutter)) + 5px);
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--line) 5%, var(--line) 95%, transparent);
    pointer-events: none;
  }

  .page-about .record {
    grid-template-columns: var(--about-axis) minmax(0, 1fr);
    gap: clamp(28px, 3.6vw, 60px);
  }

  .page-about .record-axis {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    align-self: stretch;
    gap: 10px;
    padding-top: 6px;
  }

  .page-about .split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-about .split--reverse {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  }

  .page-about .era-item {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 28px;
    align-items: baseline;
  }
}

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

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

@media (min-width: 1441px) {
  .page-about .record {
    gap: 76px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team-col,
  .page-about .tag-card,
  .page-about .tag-card::before,
  .page-about .tag-card-note,
  .page-about .code-value {
    transition: none;
  }
}