/* ===== 品牌故事页 /story/ ===== */
.page-about {
  --ab-pad: clamp(20px, 5vw, 72px);
  --ab-wide: 1180px;
  --ab-narrow: 800px;
  --ab-hair: rgba(58, 74, 68, .95);
  --ab-hair-paper: rgba(11, 18, 16, .3);
  --ab-body-ink: #22302B;
  display: block;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  padding: calc(var(--bar-h) + 34px) var(--ab-pad) 48px;
  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(68deg, rgba(159, 179, 172, .055) 0 1px, transparent 1px 46px),
    radial-gradient(120% 90% at 88% 4%, rgba(23, 230, 200, .11), transparent 58%),
    radial-gradient(90% 70% at 2% 96%, rgba(255, 122, 26, .07), transparent 62%);
  border-bottom: 2px solid var(--ab-hair);
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  top: 130px;
  width: 240px;
  height: 240px;
  border: 2px solid rgba(23, 230, 200, .26);
  transform: rotate(-4deg);
  pointer-events: none;
}

.page-about .ab-hero__inner {
  position: relative;
  max-width: var(--ab-wide);
  margin: 0 auto;
}

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mute);
  margin-bottom: 30px;
}

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

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

.page-about .ab-hero__eyebrow {
  color: var(--cyan);
}

.page-about .ab-hero__title {
  margin: 18px 0 22px;
  font-family: var(--font-head);
  font-weight: 200;
  font-size: clamp(42px, 10.5vw, 116px);
  line-height: .93;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-about .ab-hero__hl {
  color: var(--cyan);
  font-weight: 300;
}

.page-about .ab-hero__lede {
  max-width: 60ch;
  margin: 0 0 16px;
  font-size: 17px;
  line-height: 1.85;
  color: #CFD8D3;
}

.page-about .ab-hero__sub {
  max-width: 56ch;
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid var(--orange);
  font-size: 15px;
  line-height: 1.8;
  color: var(--mute);
}

.page-about .ab-hero__cue {
  margin: 40px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mute);
}

/* ---------- 章节索引条 ---------- */
.page-about .ab-toc {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  background: var(--ab-hair);
  border-bottom: 2px solid var(--ab-hair);
}

.page-about .ab-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 14px;
  background: var(--ink);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--mute);
  transition: background var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}

.page-about .ab-toc__num {
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: .14em;
  transition: color var(--dur-1) var(--ease);
}

.page-about .ab-toc__link:hover,
.page-about .ab-toc__link:focus-visible {
  background: var(--cyan);
  color: var(--ink);
  outline: none;
}

.page-about .ab-toc__link:hover .ab-toc__num,
.page-about .ab-toc__link:focus-visible .ab-toc__num {
  color: var(--ink);
}

/* ---------- 章节基座 ---------- */
.page-about .ab-sec {
  padding: 58px var(--ab-pad);
  position: relative;
}

.page-about .ab-sec--ink {
  background: var(--ink);
  color: var(--paper);
  background-image: repeating-linear-gradient(122deg, rgba(159, 179, 172, .04) 0 1px, transparent 1px 52px);
}

.page-about .ab-sec--deep {
  background: var(--ink-2);
  color: var(--paper);
  background-image: repeating-linear-gradient(122deg, rgba(159, 179, 172, .045) 0 1px, transparent 1px 52px);
}

.page-about .ab-sec--paper {
  background: var(--paper);
  color: var(--ink);
}

.page-about .ab-sec--paper + .ab-sec--paper {
  border-top: 2px solid var(--ab-hair-paper);
}

.page-about .ab-inner {
  max-width: var(--ab-wide);
  margin: 0 auto;
}

.page-about .ab-inner--narrow {
  max-width: var(--ab-narrow);
}

/* ---------- 章节标题组 ---------- */
.page-about .ab-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 16px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--ab-hair);
  margin-bottom: 32px;
}

.page-about .ab-sec--paper .ab-head {
  border-bottom-color: var(--ab-hair-paper);
}

.page-about .ab-head__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
  padding-top: 6px;
}

.page-about .ab-sec--paper .ab-head__num {
  color: var(--cyan-on-paper);
}

.page-about .ab-head__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(28px, 5.4vw, 56px);
  line-height: 1.02;
  letter-spacing: -.02em;
}

/* ---------- 正文 ---------- */
.page-about .ab-body p {
  margin: 0 0 1.05em;
  font-size: 16px;
  line-height: 1.85;
  max-width: 64ch;
}

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

.page-about .ab-sec--paper .ab-body p {
  color: var(--ab-body-ink);
}

.page-about .ab-body--lead {
  margin-bottom: 30px;
}

.page-about .ab-body--lead p {
  font-size: 17px;
  color: #CFD8D3;
}

.page-about .ab-body .text-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 2px solid rgba(23, 230, 200, .45);
  transition: border-color var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}

.page-about .ab-sec--paper .ab-body .text-link {
  color: var(--cyan-on-paper);
  border-bottom-color: rgba(10, 127, 110, .4);
}

.page-about .ab-body .text-link:hover,
.page-about .ab-body .text-link:focus-visible {
  border-bottom-color: currentColor;
}

/* ---------- 旁注 ---------- */
.page-about .ab-note {
  margin: 28px 0 0;
  padding: 6px 0 6px 16px;
  border-left: 3px solid var(--red);
  max-width: 48ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
}

.page-about .ab-note .text-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 230, 200, .5);
}

.page-about .ab-sec--paper .ab-note {
  color: var(--ink-mute-on-paper);
}

.page-about .ab-sec--paper .ab-note .text-link {
  color: var(--cyan-on-paper);
  border-bottom-color: rgba(10, 127, 110, .5);
}

/* ---------- 错位分栏 ---------- */
.page-about .ab-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

/* ---------- 版本时间线 ---------- */
.page-about .ab-tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 4px;
  border-left: 2px solid var(--ab-hair-paper);
}

.page-about .ab-tl__item {
  position: relative;
  padding: 0 0 30px 26px;
}

.page-about .ab-tl__item:last-child {
  padding-bottom: 0;
}

.page-about .ab-tl__item::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 6px;
  width: 10px;
  height: 10px;
  background: var(--paper);
  border: 2px solid var(--cyan-on-paper);
  transform: rotate(45deg);
  transition: transform var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}

.page-about .ab-tl__item:hover::before,
.page-about .ab-tl__item:focus-within::before {
  transform: rotate(45deg) scale(1.35);
  background: var(--cyan);
}

.page-about .ab-tl__ver {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: #B84A0A;
}

.page-about .ab-tl__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(20px, 3vw, 26px);
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-about .ab-tl__text {
  margin: 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--ink-mute-on-paper);
}

/* ---------- 图 ---------- */
.page-about .ab-fig {
  margin: 0;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  background: var(--ink-3);
}

.page-about .ab-sec--paper .ab-fig {
  border-color: var(--ink);
  box-shadow: var(--shadow-hard);
}

.page-about .ab-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .ab-fig__cap {
  padding: 10px 14px;
  border-top: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  line-height: 1.6;
  color: var(--mute);
  background: var(--ink);
}

.page-about .ab-sec--paper .ab-fig__cap {
  border-top-color: var(--ink);
  color: var(--ink-mute-on-paper);
  background: var(--paper-2);
}

.page-about .ab-fig--wide {
  max-width: 100%;
  margin: 34px auto 0;
}

.page-about .ab-fig--tall {
  align-self: start;
}

/* ---------- 团队卡片 ---------- */
.page-about .ab-crew {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-about .ab-crew__item {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--ink-3);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-soft);
  transition: transform var(--dur-1) var(--ease), box-shadow var(--dur-1) var(--ease);
}

.page-about .ab-crew__item:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.page-about .ab-crew__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 42px;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
  margin-bottom: 12px;
}

.page-about .ab-crew__role {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 21px;
  line-height: 1.2;
  color: var(--paper);
}

.page-about .ab-crew__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #B9C6C0;
}

.page-about .ab-crew__text .text-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 230, 200, .5);
}

.page-about .ab-crew__text .text-link:hover,
.page-about .ab-crew__text .text-link:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 收束动作 ---------- */
.page-about .ab-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

/* ---------- 移动端 / 平板 ---------- */
@media (min-width: 720px) {
  .page-about .ab-toc {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .ab-sec {
    padding: 92px var(--ab-pad);
  }

  .page-about .ab-hero {
    padding-top: calc(var(--bar-h) + 64px);
    padding-bottom: 64px;
  }

  .page-about .ab-split {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 52px;
  }

  .page-about .ab-split--reverse {
    grid-template-columns: 340px minmax(0, 1fr);
  }

  .page-about .ab-fig--wide {
    margin-top: 40px;
  }
}

@media (min-width: 1100px) {
  .page-about .ab-shift {
    margin-left: 20%;
    max-width: 940px;
  }

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

  .page-about .ab-fig--wide {
    max-width: 880px;
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-crew__item,
  .page-about .ab-tl__item::before,
  .page-about .ab-toc__link {
    transition: none;
  }

  .page-about .ab-crew__item:hover {
    transform: none;
  }
}
<<<END>>>