.page-about {
  --about-border: rgba(11, 27, 43, 0.12);
  --about-border-soft: rgba(11, 27, 43, 0.07);
  --about-muted-ink: #46596d;
  background: var(--paper);
  color: var(--text-ink);
  font-family: var(--font-sans);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-about .about-shell {
  max-width: var(--bw-max);
  margin-inline: auto;
  padding: clamp(18px, 4vw, 40px) var(--bw-gutter) 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 40px);
}

.page-about .about-main {
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 6vw, 86px);
  min-width: 0;
}

.page-about .bw-lead {
  max-width: 64ch;
  color: var(--about-muted-ink);
}

/* ---------- 左轴刻度 ---------- */
.page-about .about-axis {
  min-width: 0;
}

.page-about .about-scale {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-about .about-scale__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--about-border);
  background: #ffffff;
  color: var(--text-ink);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  transition: border-color 0.2s var(--bw-ease), color 0.2s var(--bw-ease);
}

.page-about .about-scale__link:hover,
.page-about .about-scale__link:focus-visible {
  border-color: var(--brand-red);
  color: var(--brand-red);
}

.page-about .about-scale__link .bw-axis__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--brand-red);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-about .about-hero .bw-title--xl {
  max-width: 15em;
  letter-spacing: -0.015em;
  line-height: 1.18;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 14px;
  margin-top: 6px;
}

.page-about .about-hero__note {
  background: #ffffff;
  border-radius: var(--bw-radius);
  border: 1px solid var(--about-border-soft);
  border-left: 4px solid var(--brand-red);
  padding: clamp(18px, 2.4vw, 26px);
  box-shadow: 0 20px 48px -40px rgba(11, 27, 43, 0.9);
}

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

.page-about .about-hero__plate {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 12px;
  background: var(--ink-navy);
  border-radius: var(--bw-radius);
  padding: clamp(18px, 2.4vw, 26px);
}

.page-about .about-hero__plate dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted-dark);
  text-transform: uppercase;
}

.page-about .about-hero__plate dd {
  margin: 5px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 700;
  color: var(--text-inverse);
  letter-spacing: -0.02em;
}

/* ---------- 章节标题 ---------- */
.page-about .about-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-about .about-head .bw-title {
  max-width: 22em;
  line-height: 1.25;
}

/* ---------- 四条主线 ---------- */
.page-about .about-map {
  position: relative;
  border-radius: calc(var(--bw-radius) + 6px);
  padding: clamp(18px, 3vw, 38px);
  background:
    linear-gradient(rgba(11, 27, 43, 0.045) 1px, transparent 1px) 0 0 / 100% 54px,
    linear-gradient(90deg, rgba(11, 27, 43, 0.045) 1px, transparent 1px) 0 0 / 54px 100%,
    var(--paper-deep);
}

.page-about .about-map__grid {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-line-card {
  display: flex;
  flex-direction: column;
  gap: 9px;
  background: #ffffff;
  border: 1px solid var(--about-border);
  border-radius: var(--bw-radius);
  padding: 18px 16px 20px;
  transition: transform 0.25s var(--bw-ease), border-color 0.25s var(--bw-ease), box-shadow 0.25s var(--bw-ease);
}

.page-about .about-line-card:hover,
.page-about .about-line-card:focus-within {
  transform: translateY(-6px);
  border-color: var(--brand-red);
  box-shadow: 0 26px 46px -32px rgba(11, 27, 43, 0.6);
}

.page-about .about-line-card__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--brand-red);
}

.page-about .about-line-card__title {
  margin: 0;
  font-size: var(--bw-fs-h3);
  font-weight: 800;
  line-height: 1.3;
}

.page-about .about-line-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--about-muted-ink);
}

.page-about .about-line-card__detail {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--about-muted-ink);
  opacity: 0.72;
  padding-left: 10px;
  border-left: 2px solid var(--about-border);
  transition: opacity 0.25s var(--bw-ease), border-color 0.25s var(--bw-ease);
}

.page-about .about-line-card:hover .about-line-card__detail,
.page-about .about-line-card:focus-within .about-line-card__detail {
  opacity: 1;
  border-left-color: var(--aqua-live);
}

.page-about .about-line-card__link {
  margin-top: auto;
  font-size: 13px;
  font-weight: 600;
  align-self: flex-start;
}

/* ---------- 呼吸区 ---------- */
.page-about .about-breath {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--ink-navy);
  border-radius: var(--bw-radius);
  padding: clamp(26px, 4vw, 50px);
}

.page-about .about-breath::before {
  content: "";
  flex: 0 0 3px;
  align-self: stretch;
  min-height: 44px;
  border-radius: 3px;
  background: var(--aqua-live);
}

.page-about .about-breath__line {
  margin: 0;
  font-size: clamp(19px, 2.6vw, 30px);
  font-weight: 800;
  line-height: 1.5;
  color: var(--text-inverse);
  letter-spacing: -0.01em;
}

/* ---------- 图文 ---------- */
.page-about .about-shot {
  margin: 0 0 clamp(20px, 3vw, 30px);
}

.page-about .about-shot .bw-figure__media {
  border-radius: var(--bw-radius);
  overflow: hidden;
  background: var(--navy-raised);
}

.page-about .about-shot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.04);
}

.page-about .about-shot .bw-figure__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--about-muted-ink);
}

/* ---------- 三道流程 ---------- */
.page-about .about-steps {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-step {
  position: relative;
  margin-left: 7px;
  padding: 0 0 26px 28px;
  border-left: 2px dashed rgba(46, 196, 182, 0.45);
}

.page-about .about-step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-about .about-step::before {
  content: "";
  position: absolute;
  left: -9px;
  top: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--aqua-live);
  box-shadow: 0 0 0 4px rgba(46, 196, 182, 0.2);
}

.page-about .about-step__no {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--aqua-live);
  text-transform: uppercase;
}

.page-about .about-step__title {
  margin: 0 0 6px;
  font-size: var(--bw-fs-h3);
  font-weight: 800;
  line-height: 1.35;
}

.page-about .about-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--about-muted-ink);
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-about .about-bars {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-about .about-bar__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.page-about .about-bar__label {
  font-size: 15px;
  font-weight: 700;
}

.page-about .about-bar__value {
  font-size: 13px;
  font-weight: 700;
  color: var(--brand-red);
}

.page-about .about-bar__track {
  height: 12px;
  border-radius: 999px;
  background: var(--paper-deep);
  overflow: hidden;
}

.page-about .about-bar__fill {
  display: block;
  height: 100%;
  border-radius: 999px;
}

.page-about .about-bar__fill--red {
  background: var(--brand-red);
}

.page-about .about-bar__fill--ink {
  background: var(--ink-navy);
}

.page-about .about-bar__fill--deep {
  background: var(--brand-red-deep);
}

.page-about .about-bar__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--about-muted-ink);
}

.page-about .about-partners {
  background: #ffffff;
  border: 1px solid var(--about-border-soft);
  border-radius: var(--bw-radius);
  padding: clamp(18px, 2.6vw, 28px);
}

.page-about .about-partners__title {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-about .about-partners__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-about .about-partners__list li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-muted-ink);
  padding-left: 14px;
  position: relative;
}

.page-about .about-partners__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber-flag);
}

.page-about .about-partners__list .bw-mono {
  color: var(--text-ink);
  font-weight: 700;
  margin-right: 6px;
}

.page-about .about-partners__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--about-border-soft);
  font-size: 13px;
  line-height: 1.75;
  color: var(--about-muted-ink);
}

/* ---------- 赛季积累 ---------- */
.page-about .about-seasons__grid {
  display: grid;
  gap: 16px;
}

.page-about .about-seasons .about-shot {
  margin: 0;
}

.page-about .about-shot--fill .bw-figure__media {
  height: 100%;
  min-height: 200px;
}

.page-about .about-shot--fill img {
  height: 100%;
}

.page-about .about-figures {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--navy-line);
  border-radius: var(--bw-radius);
  overflow: hidden;
}

.page-about .about-figures > div {
  background: var(--ink-navy);
  padding: 16px 14px;
}

.page-about .about-figures dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted-dark);
}

.page-about .about-figures dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(21px, 2.8vw, 30px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-inverse);
}

.page-about .about-seasons__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--about-muted-ink);
}

/* ---------- 行动 ---------- */
.page-about .about-action__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-about .about-action__contact {
  border-top: 1px solid var(--about-border-soft);
  padding-top: clamp(18px, 2.4vw, 26px);
}

.page-about .about-action__contact p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--about-muted-ink);
  max-width: 62ch;
}

.page-about .about-action__meta {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--text-ink) !important;
  word-break: break-word;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }

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

  .page-about .about-seasons__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: stretch;
  }
}

@media (min-width: 860px) {
  .page-about .about-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-about .about-step {
    margin-left: 0;
    padding: 30px 24px 0 0;
    border-left: 0;
    border-top: 2px dashed rgba(46, 196, 182, 0.45);
  }

  .page-about .about-step:last-child {
    padding-right: 0;
    border-top-color: transparent;
  }

  .page-about .about-step::before {
    left: 0;
    top: -9px;
  }
}

@media (min-width: 900px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-about .about-shell {
    grid-template-columns: var(--bw-axis) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-axis {
    position: sticky;
    top: 104px;
  }

  .page-about .about-scale {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
    border-left: 1px solid var(--about-border);
  }

  .page-about .about-scale__link {
    width: 100%;
    border: 0;
    border-radius: 0;
    background: transparent;
    padding: 9px 0 9px 14px;
    position: relative;
    opacity: 0.62;
    font-size: 13px;
  }

  .page-about .about-scale__link::before {
    content: "";
    position: absolute;
    left: -1px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    border-radius: 0 3px 3px 0;
    background: var(--brand-red);
    transition: height 0.25s var(--bw-ease);
  }

  .page-about .about-scale__link:hover,
  .page-about .about-scale__link:focus-visible {
    opacity: 1;
    color: var(--text-ink);
  }

  .page-about .about-scale__link:hover::before,
  .page-about .about-scale__link:focus-visible::before {
    height: 58%;
  }
}

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

  .page-about .about-line-card:nth-child(2) {
    margin-top: 22px;
  }

  .page-about .about-line-card:nth-child(3) {
    margin-top: 44px;
  }

  .page-about .about-line-card:nth-child(4) {
    margin-top: 66px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-line-card,
  .page-about .about-line-card__detail,
  .page-about .about-scale__link,
  .page-about .about-scale__link::before {
    transition: none;
  }

  .page-about .about-line-card:hover,
  .page-about .about-line-card:focus-within {
    transform: none;
  }
}
<<<END>>>