.page-about {
  --about-rail: 2px;
  --about-gap: clamp(18px, 2.6vw, 28px);
}

.page-about .story-hero {
  padding-block: clamp(24px, 4vw, 44px) clamp(34px, 5vw, 64px);
  border-bottom: var(--line);
}

.page-about .story-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: 18px;
}

.page-about .story-hero__text .label {
  display: inline-block;
  color: var(--cyan);
}

.page-about .story-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2.05rem, 7.2vw, 3.9rem);
  line-height: 1.1;
  letter-spacing: 0.025em;
  color: var(--warm-white);
}

.page-about .story-hero__lead {
  margin-top: 18px;
  color: var(--warm-white);
  opacity: 0.86;
  max-width: 34em;
}

.page-about .story-hero__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 18px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 2px solid var(--navy-700);
}

.page-about .story-meta {
  display: grid;
  gap: 4px;
}

.page-about .story-meta__value {
  font-size: clamp(1.35rem, 3.4vw, 1.8rem);
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-about .story-meta__label {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--warm-white);
  opacity: 0.72;
}

.page-about .story-hero__figure {
  position: relative;
  margin: 0;
  background: var(--navy-700);
  border: 2px solid var(--void);
  box-shadow: var(--shadow-hard);
}

.page-about .story-hero__figure::before,
.page-about .story-hero__figure::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid var(--cyan);
  pointer-events: none;
  z-index: 2;
}

.page-about .story-hero__figure::before {
  top: 8px;
  left: 8px;
  border-right: 0;
  border-bottom: 0;
}

.page-about .story-hero__figure::after {
  right: 8px;
  bottom: 8px;
  border-left: 0;
  border-top: 0;
}

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

.page-about .story-hero__caption {
  display: block;
  padding: 10px 14px;
  background: var(--navy-900);
  border-top: 2px solid var(--void);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--warm-white);
  opacity: 0.82;
}

.page-about .story-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
}

.page-about .story-main {
  min-width: 0;
  padding-block: clamp(34px, 5.4vw, 64px);
}

.page-about .story-section {
  margin-bottom: clamp(44px, 7vw, 84px);
}

.page-about .story-section:last-of-type {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-about .story-section__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  border-bottom: var(--line);
  padding-bottom: 12px;
}

.page-about .story-section__no {
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
  flex: none;
}

.page-about .story-section__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.6vw, 2.15rem);
  line-height: 1.28;
  letter-spacing: 0.025em;
  color: var(--warm-white);
}

.page-about .story-section__lead {
  margin: 18px 0 0;
  max-width: 34em;
  line-height: 1.8;
  color: var(--warm-white);
  opacity: 0.82;
}

.page-about .story-read {
  margin-top: 20px;
  max-width: 44rem;
  border: 2px solid var(--void);
  box-shadow: var(--shadow-soft);
}

.page-about .story-read p {
  font-size: 1rem;
  line-height: 1.85;
}

/* 版本刻度 */
.page-about .version-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-about .version-item {
  display: grid;
  gap: 9px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--navy-700);
}

.page-about .version-item__top {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-about .version-item__tag {
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  color: var(--warm-white);
}

.page-about .version-item--v4 .version-item__tag {
  color: var(--orange);
}

.page-about .version-item__name {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--warm-white);
  opacity: 0.66;
}

.page-about .version-item__meter {
  height: 12px;
  background: var(--navy-700);
  border: 2px solid var(--void);
}

.page-about .version-item__fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--cyan);
  transition: width var(--dur) var(--ease);
}

.page-about .version-item:nth-child(1) .version-item__fill { width: 24%; }
.page-about .version-item:nth-child(2) .version-item__fill { width: 50%; }
.page-about .version-item:nth-child(3) .version-item__fill { width: 76%; }
.page-about .version-item:nth-child(4) .version-item__fill { width: 100%; background: var(--orange); }

.page-about .version-item__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--warm-white);
  opacity: 0.78;
  max-width: 38em;
}

/* 校对流程 */
.page-about .steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 26px;
}

.page-about .step {
  background: var(--navy-700);
  border: 2px solid var(--void);
  padding: 16px 16px 18px;
  transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .step:hover,
.page-about .step:focus,
.page-about .step:focus-visible {
  border-color: var(--cyan);
  box-shadow: var(--shadow-soft);
  transform: translate(-2px, -2px);
  outline: none;
}

.page-about .step__no {
  display: block;
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-about .step__title {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  color: var(--warm-white);
}

.page-about .step__text {
  margin: 8px 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--warm-white);
  opacity: 0.8;
}

.page-about .step__note {
  margin: 10px 0 0;
  padding-left: 0;
  border-left: 2px solid transparent;
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--warm-white);
  opacity: 0.55;
  transition: opacity var(--dur) var(--ease), padding-left var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .step:hover .step__note,
.page-about .step:focus .step__note,
.page-about .step:focus-visible .step__note {
  opacity: 1;
  padding-left: 10px;
  border-left-color: var(--cyan);
}

/* 图片块 */
.page-about .story-figure {
  margin: 26px 0 0;
  background: var(--navy-700);
  border: 2px solid var(--void);
  box-shadow: var(--shadow-soft);
}

.page-about .story-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-about .story-figure--wide img {
  aspect-ratio: 7 / 3;
}

.page-about .story-figure__caption {
  display: block;
  padding: 10px 14px;
  border-top: 2px solid var(--void);
  background: var(--navy-900);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--warm-white);
  opacity: 0.8;
}

/* 球队库数据条 */
.page-about .stat-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  margin-top: 24px;
  background: var(--void);
  border: 2px solid var(--void);
}

.page-about .stat-strip__item {
  display: grid;
  gap: 6px;
  padding: 16px 14px;
  background: var(--navy-700);
}

.page-about .stat-strip__num {
  font-size: clamp(1.3rem, 3.6vw, 1.75rem);
  color: var(--cyan);
  letter-spacing: 0.03em;
}

.page-about .stat-strip__label {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--warm-white);
  opacity: 0.72;
}

.page-about .story-disclosure {
  margin-top: 24px;
  border: 2px solid var(--void);
  background: var(--navy-700);
}

.page-about .story-disclosure summary {
  cursor: pointer;
  padding: 14px 16px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: 0.03em;
  color: var(--warm-white);
}

.page-about .story-disclosure .disclosure__body {
  padding: 0 16px 16px;
  border-top: 2px solid var(--navy-900);
}

.page-about .story-disclosure .disclosure__body p {
  margin: 12px 0 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--warm-white);
  opacity: 0.82;
}

.page-about .story-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* 合作 */
.page-about .partner-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
  background: var(--navy-700);
  border: 2px solid var(--void);
}

.page-about .partner-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 16px;
  background: var(--navy-900);
}

.page-about .partner-item__num {
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--orange);
  line-height: 1;
}

.page-about .partner-item__title {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-about .partner-item__text {
  margin: 8px 0 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--warm-white);
  opacity: 0.8;
  max-width: 38em;
}

/* 引语面板 */
.page-about .story-quote {
  margin-bottom: clamp(44px, 7vw, 84px);
  padding: clamp(24px, 4.6vw, 52px);
  background: var(--navy-700);
  border: 2px solid var(--void);
  box-shadow: var(--shadow-hard);
}

.page-about .story-quote .label {
  color: var(--amber);
}

.page-about .story-quote__title {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.7rem, 5vw, 2.9rem);
  line-height: 1.18;
  letter-spacing: 0.03em;
  color: var(--warm-white);
}

.page-about .creed {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.page-about .creed__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding-top: 20px;
  border-top: 2px solid var(--navy-900);
}

.page-about .creed__no {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--orange);
  padding-top: 6px;
}

.page-about .creed__text {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.25rem, 3.4vw, 1.95rem);
  line-height: 1.32;
  letter-spacing: 0.02em;
  color: var(--warm-white);
}

.page-about .creed__sub {
  margin: 10px 0 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--warm-white);
  opacity: 0.72;
  max-width: 34em;
}

/* 联系 */
.page-about .story-section--talk {
  margin-bottom: 0;
}

.page-about .talk-panel {
  display: grid;
  gap: 2px;
  margin-top: 22px;
  border: 2px solid var(--void);
  background: var(--void);
}

.page-about .talk-panel__body {
  padding: clamp(18px, 3vw, 28px);
  background: var(--navy-700);
}

.page-about .talk-panel__text {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.82;
  color: var(--warm-white);
  opacity: 0.84;
  max-width: 34em;
}

.page-about .talk-panel__contact {
  margin: 0;
  padding: clamp(18px, 3vw, 28px);
  background: var(--navy-900);
  display: grid;
  gap: 14px;
}

.page-about .talk-row {
  display: grid;
  gap: 5px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--navy-700);
}

.page-about .talk-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .talk-row dt {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-about .talk-row dd {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--warm-white);
  word-break: break-word;
}

.page-about .talk-row dd a {
  color: var(--warm-white);
  text-decoration: none;
  border-bottom: 2px solid var(--mid-blue);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

/* 右侧索引 */
.page-about .story-index {
  display: none;
}

.page-about .story-index .label {
  color: var(--cyan);
}

.page-about .story-index__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-about .story-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 0;
  font-size: 0.84rem;
  letter-spacing: 0.06em;
  color: var(--warm-white);
  opacity: 0.75;
  text-decoration: none;
  border-left: 3px solid transparent;
  padding-left: 10px;
  transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .story-index__list a:hover,
.page-about .story-index__list a:focus-visible {
  opacity: 1;
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-about .story-index__list .num {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

/* 响应式 */
@media (min-width: 620px) {
  .page-about .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .story-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 44px;
    align-items: end;
  }

  .page-about .story-hero__figure {
    margin-top: 24px;
  }

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

  .page-about .story-main {
    position: relative;
    padding-left: 38px;
  }

  .page-about .story-main::before {
    content: "";
    position: absolute;
    left: 6px;
    top: 0;
    bottom: 0;
    width: var(--about-rail);
    background: var(--navy-700);
  }

  .page-about .story-section,
  .page-about .story-quote {
    position: relative;
  }

  .page-about .story-section::before,
  .page-about .story-quote::before {
    content: "";
    position: absolute;
    left: -38px;
    top: 14px;
    width: 12px;
    height: 12px;
    background: var(--cyan);
    border: 2px solid var(--void);
  }

  .page-about .story-quote::before {
    left: -38px;
    top: 32px;
    background: var(--orange);
  }

  .page-about .story-figure--wide img {
    aspect-ratio: 14 / 6;
  }
}

@media (min-width: 1024px) {
  .page-about .story-shell {
    grid-template-columns: minmax(0, 1fr) 176px;
    column-gap: 48px;
    align-items: start;
  }

  .page-about .story-index {
    display: block;
    position: sticky;
    top: 96px;
    padding-block: clamp(34px, 5.4vw, 64px);
    border-left: 2px solid var(--navy-700);
    padding-left: 18px;
  }

  .page-about .talk-panel {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }

  .page-about .talk-panel__contact {
    border-left: 2px solid var(--void);
  }
}

@media (min-width: 1180px) {
  .page-about .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .version-item__fill,
  .page-about .step,
  .page-about .step__note,
  .page-about .story-index__list a,
  .page-about .talk-row dd a {
    transition: none;
  }

  .page-about .step:hover,
  .page-about .step:focus,
  .page-about .step:focus-visible {
    transform: none;
  }
}
<<<END>>>