.page-about {
  --ab-line: rgba(25, 247, 210, 0.24);
  --ab-line-soft: rgba(25, 247, 210, 0.12);
  --ab-card: #0B1F1A;
  --ab-card-2: #12352C;
  padding-bottom: 64px;
}

.page-about .breadcrumb ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 20px 0 18px;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-about .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-about .breadcrumb li + li::before {
  content: "/";
  color: var(--ab-line);
}

.page-about .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 首屏封面 ---------- */

.page-about .ab-hero__cover {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--ab-line);
  background: linear-gradient(155deg, #0B1F1A 0%, #0A0D0C 68%);
  box-shadow: var(--hard-dark);
  padding: 26px 20px 28px;
  display: grid;
  gap: 26px;
}

.page-about .ab-hero__cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 54px 54px;
  pointer-events: none;
}

.page-about .ab-hero__text,
.page-about .ab-hero__figure {
  position: relative;
  z-index: 1;
}

.page-about .ab-hero__title {
  font-family: var(--font-display);
  font-size: clamp(29px, 7.4vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 14px 0 16px;
  max-width: 22ch;
}

.page-about .ab-hero__lede {
  color: var(--gray);
  font-size: 15px;
  line-height: 1.8;
  margin: 0 0 22px;
  max-width: 54ch;
}

.page-about .ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .ab-hero__figure {
  margin: 0;
  border: 2px solid var(--ab-line-soft);
  box-shadow: var(--hard);
  background: var(--panel);
  overflow: hidden;
}

.page-about .ab-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

/* ---------- 横向数据条 ---------- */

.page-about .ab-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ab-line-soft);
  border: 2px solid var(--ab-line-soft);
  margin-top: 18px;
}

.page-about .ab-strip__cell {
  background: #0A0D0C;
  padding: 14px 12px;
}

.page-about .ab-strip__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 5.4vw, 30px);
  line-height: 1.05;
  color: var(--volt);
  letter-spacing: -0.01em;
}

.page-about .ab-strip__label {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
}

/* ---------- 章节通用 ---------- */

.page-about .ab-section {
  padding-top: 56px;
}

.page-about .ab-head {
  display: grid;
  gap: 10px;
  max-width: 64ch;
}

.page-about .ab-head__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-about .ab-head h2 {
  font-family: var(--font-display);
  font-size: clamp(23px, 4.8vw, 38px);
  line-height: 1.16;
  color: var(--white);
  margin: 0;
}

.page-about .ab-head p {
  color: var(--gray);
  font-size: 15px;
  line-height: 1.78;
  margin: 0;
}

/* ---------- 运营方法 ---------- */

.page-about .ab-flow {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.page-about .ab-step {
  position: relative;
  border: 2px solid var(--ab-line-soft);
  border-left: 4px solid var(--cyan);
  background: var(--ab-card);
  padding: 20px 18px 18px;
  box-shadow: var(--hard-dark);
}

.page-about .ab-step:nth-child(2) {
  border-left-color: var(--volt);
}

.page-about .ab-step:nth-child(3) {
  border-left-color: var(--orange);
}

.page-about .ab-step:nth-child(4) {
  border-left-color: var(--gray);
}

.page-about .ab-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  color: var(--volt);
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.page-about .ab-step h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 8px;
}

.page-about .ab-step p {
  color: var(--gray);
  font-size: 14px;
  line-height: 1.78;
  margin: 0;
}

.page-about .ab-step__stat {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--ab-line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-about .ab-method__figure {
  margin: 26px 0 0;
  border: 2px solid var(--ab-line-soft);
  box-shadow: var(--hard);
  background: var(--panel);
  overflow: hidden;
}

.page-about .ab-method__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

/* ---------- 赛季时间线 ---------- */

.page-about .ab-tl {
  margin-top: 26px;
  display: grid;
  gap: 28px;
}

.page-about .ab-tl__figure {
  margin: 0 0 24px;
  border: 2px solid var(--ab-line-soft);
  box-shadow: var(--hard-dark);
  background: var(--panel);
  overflow: hidden;
}

.page-about .ab-tl__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.page-about .ab-tl__list {
  list-style: none;
  position: relative;
  margin: 0;
  padding: 4px 0 4px 30px;
  display: grid;
  gap: 20px;
}

.page-about .ab-tl__list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan) 0%, rgba(230, 255, 59, 0.55) 55%, rgba(255, 122, 26, 0.55) 100%);
}

.page-about .ab-tl__item {
  position: relative;
}

.page-about .ab-tl__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 6px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--cyan);
  background: var(--ink);
}

.page-about .ab-tl__item:nth-child(2)::before {
  border-color: var(--volt);
}

.page-about .ab-tl__item:nth-child(4)::before {
  border-color: var(--orange);
}

.page-about .ab-tl__item:nth-child(5)::before {
  border-color: var(--gray);
}

.page-about .ab-tl__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--volt);
  border: 1px solid rgba(230, 255, 59, 0.36);
  padding: 3px 8px;
  margin-bottom: 10px;
}

.page-about .ab-tl__card {
  border: 2px solid var(--ab-line-soft);
  background: var(--ab-card);
  padding: 16px;
}

.page-about .ab-tl__card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 8px;
}

.page-about .ab-tl__card p {
  color: var(--gray);
  font-size: 14px;
  line-height: 1.78;
  margin: 0;
}

.page-about .ab-tl__aside {
  display: grid;
  gap: 12px;
  align-content: start;
}

/* ---------- 团队构成 ---------- */

.page-about .ab-team__grid {
  margin-top: 26px;
  display: grid;
  gap: 24px;
}

.page-about .ab-team__bars {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .ab-team__row {
  border-left: 3px solid var(--ab-line);
  padding-left: 14px;
}

.page-about .ab-team__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-about .ab-team__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-about .ab-team__count {
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--volt);
}

.page-about .ab-team__track {
  display: block;
  height: 8px;
  margin: 10px 0 8px;
  background: rgba(25, 247, 210, 0.1);
  border: 1px solid var(--ab-line-soft);
}

.page-about .ab-team__fill {
  display: block;
  height: 100%;
}

.page-about .ab-team__fill--ops {
  width: 34%;
  background: var(--cyan);
}

.page-about .ab-team__fill--prod {
  width: 38%;
  background: var(--volt);
}

.page-about .ab-team__fill--edit {
  width: 16%;
  background: var(--orange);
}

.page-about .ab-team__fill--care {
  width: 12%;
  background: var(--gray);
}

.page-about .ab-team__desc {
  color: var(--gray);
  font-size: 13.5px;
  line-height: 1.72;
  margin: 0;
}

.page-about .ab-team__note {
  border: 2px solid var(--orange);
  background: var(--panel);
  box-shadow: var(--hard-warm);
  padding: 20px 18px;
}

.page-about .ab-team__note-kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 10px;
}

.page-about .ab-team__note p + p,
.page-about .ab-team__note > p:last-child {
  color: var(--gray);
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
}

/* ---------- 资质 ---------- */

.page-about .ab-creds__grid {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .ab-creds__item {
  border: 2px solid var(--ab-line-soft);
  background:
    linear-gradient(180deg, rgba(18, 53, 44, 0.55) 0%, rgba(10, 13, 12, 0.9) 100%);
  padding: 20px 18px;
}

.page-about .ab-creds__mark {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--cyan);
  border: 1px solid var(--ab-line);
  padding: 3px 10px;
  margin-bottom: 12px;
}

.page-about .ab-creds__item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 8px;
}

.page-about .ab-creds__item p {
  color: var(--gray);
  font-size: 14px;
  line-height: 1.76;
  margin: 0;
}

/* ---------- 合作生态 ---------- */

.page-about .ab-eco__plates {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .ab-eco__plate {
  position: relative;
  border: 2px solid var(--ab-line-soft);
  background: var(--ab-card);
  padding: 18px 16px 16px 54px;
  box-shadow: var(--hard-dark);
}

.page-about .ab-eco__idx {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--ink);
  background: var(--volt);
  border-right: 2px solid var(--ab-line-soft);
}

.page-about .ab-eco__plate h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 8px;
}

.page-about .ab-eco__plate p {
  color: var(--gray);
  font-size: 14px;
  line-height: 1.76;
  margin: 0;
}

/* ---------- 下一步 ---------- */

.page-about .ab-next__panel {
  border: 2px solid var(--ab-line);
  background: linear-gradient(140deg, #0B1F1A 0%, #0A0D0C 70%);
  box-shadow: var(--hard);
  padding: 26px 20px;
  display: grid;
  gap: 26px;
}

.page-about .ab-next__body h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 4.8vw, 34px);
  line-height: 1.2;
  color: var(--white);
  margin: 12px 0 12px;
}

.page-about .ab-next__body p {
  color: var(--gray);
  font-size: 15px;
  line-height: 1.8;
  margin: 0 0 20px;
  max-width: 52ch;
}

.page-about .ab-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .ab-next__facts {
  margin: 0;
  display: grid;
  gap: 12px;
  border-top: 1px dashed var(--ab-line-soft);
  padding-top: 20px;
}

.page-about .ab-next__fact {
  display: grid;
  gap: 4px;
}

.page-about .ab-next__fact dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-about .ab-next__fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-about .ab-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 960px) {
  .page-about {
    padding-bottom: 96px;
  }

  .page-about .ab-hero__cover {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
    gap: 36px;
    padding: 40px 36px;
  }

  .page-about .ab-hero__figure {
    align-self: stretch;
  }

  .page-about .ab-hero__figure img {
    height: 100%;
    aspect-ratio: auto;
    min-height: 260px;
  }

  .page-about .ab-section {
    padding-top: 84px;
  }

  .page-about .ab-method__figure {
    margin-top: 32px;
  }

  .page-about .ab-tl {
    grid-template-columns: minmax(0, 1fr) 244px;
    gap: 36px;
    align-items: start;
  }

  .page-about .ab-tl__aside {
    position: sticky;
    top: 24px;
  }

  .page-about .ab-team__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 30px;
    align-items: start;
  }

  .page-about .ab-creds__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

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

  .page-about .ab-next__panel {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
    gap: 36px;
    padding: 36px 34px;
  }

  .page-about .ab-next__facts {
    border-top: 0;
    border-left: 1px dashed var(--ab-line-soft);
    padding-top: 0;
    padding-left: 24px;
  }
}

@media (min-width: 1200px) {
  .page-about .ab-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .ab-step {
    padding: 22px 18px 20px;
  }

  .page-about .ab-flow .ab-step:nth-child(2) {
    margin-top: 22px;
  }

  .page-about .ab-flow .ab-step:nth-child(4) {
    margin-top: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .breadcrumb a {
    transition: none;
  }
}