.page-about {
  --ab-panel-pad: 22px;
  --ab-edge: 3px solid var(--line-kiwi);
  --ab-ink-soft: rgba(245, 248, 238, 0.78);
  position: relative;
  padding-bottom: 64px;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  margin: 20px 0 8px;
}
.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--muted);
}
.page-about .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--kiwi-deep);
}
.page-about .breadcrumb-list a {
  color: var(--kiwi-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-about .breadcrumb-list a:hover,
.page-about .breadcrumb-list a:focus-visible {
  border-bottom-color: var(--core);
}
.page-about .breadcrumb-list [aria-current="page"] {
  color: var(--paper);
  font-weight: 600;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 8px 0 34px;
}
.page-about .about-hero__grid {
  display: grid;
  gap: 22px;
}
.page-about .about-hero__lead h1 {
  margin: 10px 0 14px;
  font-size: clamp(30px, 8.4vw, 58px);
  line-height: 1.1;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--paper);
  text-wrap: balance;
}
.page-about .about-hero__copy {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ab-ink-soft);
  max-width: 46ch;
}
.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-about .about-tonight {
  position: relative;
  overflow: hidden;
  background: var(--core);
  color: var(--paper-ink);
  border: 3px solid var(--paper-ink);
  border-radius: var(--r-l);
  box-shadow: var(--shadow-hard);
  padding: 22px;
}
.page-about .about-tonight::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -60px;
  width: 180px;
  height: 180px;
  border-radius: 24px;
  background: var(--core-soft);
  transform: rotate(-6deg);
  opacity: 0.75;
}
.page-about .about-tonight__label {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  font-weight: 600;
  color: rgba(10, 26, 16, 0.7);
}
.page-about .about-tonight__year {
  position: relative;
  z-index: 1;
  margin: 4px 0 6px;
  font-size: clamp(60px, 18vw, 108px);
  line-height: 0.92;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper-ink);
}
.page-about .about-tonight__text {
  position: relative;
  z-index: 1;
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.65;
  max-width: 34ch;
}
.page-about .about-tonight__list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: 2px solid rgba(10, 26, 16, 0.35);
  display: grid;
  gap: 8px;
}
.page-about .about-tonight__list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(10, 26, 16, 0.78);
}
.page-about .about-tonight__list strong {
  font-size: 22px;
  font-weight: 700;
  color: var(--paper-ink);
}

/* ---------- 堆叠面板 ---------- */
.page-about .about-stack {
  display: grid;
  gap: var(--gap-panel);
  margin-top: 10px;
}
.page-about .about-panel {
  position: relative;
  background: var(--panel);
  border: var(--ab-edge);
  border-radius: var(--r-l);
  box-shadow: var(--shadow-hard);
  padding: var(--ab-panel-pad);
}
.page-about .about-panel .panel-head {
  margin-bottom: 18px;
}
.page-about .about-panel .panel-title {
  margin: 6px 0 8px;
  font-size: clamp(22px, 5.6vw, 34px);
  line-height: 1.2;
  font-weight: 900;
  color: var(--paper);
}
.page-about .about-panel .panel-note {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ab-ink-soft);
  max-width: 60ch;
}
.page-about .eyebrow {
  margin: 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--kiwi-soft);
}
.page-about .prose p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ab-ink-soft);
}
.page-about .prose p:last-child {
  margin-bottom: 0;
}

/* 缘起面板 */
.page-about .about-panel__grid {
  display: grid;
  gap: 22px;
}
.page-about .about-panel__figure {
  margin: 0;
}
.page-about .about-panel__figure figcaption,
.page-about .about-team__figure figcaption,
.page-about .about-partner__figure figcaption {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.page-about .img-frame {
  overflow: hidden;
  border: 3px solid var(--line-kiwi);
  border-radius: var(--r-m);
  background: var(--panel-2);
}
.page-about .img-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .img-frame--tall img {
  aspect-ratio: 11 / 15;
}
.page-about .img-frame--wide img {
  aspect-ratio: 7 / 4;
}
.page-about .img-frame--card img {
  aspect-ratio: 10 / 7;
}

/* ---------- 服务版图 ---------- */
.page-about .about-panel--map {
  background: var(--ink-deep);
}
.page-about .about-map-wrap {
  display: grid;
  gap: 20px;
}
.page-about .about-map__visual {
  border: 2px solid var(--line-soft);
  border-radius: var(--r-m);
  background:
    linear-gradient(rgba(108, 194, 74, 0.07) 1px, transparent 1px) 0 0 / 100% 32px,
    linear-gradient(90deg, rgba(108, 194, 74, 0.07) 1px, transparent 1px) 0 0 / 32px 100%,
    var(--panel-2);
  padding: 8px;
}
.page-about .about-map {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}
.page-about .about-map__pulse {
  animation: ab-pulse 2s ease-in-out infinite;
  transform-origin: 310px 212px;
  opacity: 0.7;
}
@keyframes ab-pulse {
  0%, 100% { transform: scale(1); opacity: 0.55; }
  50% { transform: scale(1.35); opacity: 0.15; }
}

/* 分段标签 */
.page-about .tablist {
  position: relative;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line-kiwi);
  scrollbar-width: thin;
}
.page-about .tab {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 10px 16px;
  border: 2px solid var(--line-kiwi);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--kiwi-soft);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.22s ease, color 0.22s ease, border-color 0.22s ease;
}
.page-about .tab[aria-selected="true"] {
  background: var(--kiwi);
  border-color: var(--kiwi);
  color: var(--ink-deep);
}
.page-about .tab:focus-visible {
  outline: 3px solid var(--core);
  outline-offset: 2px;
}
.page-about .tab-indicator {
  display: none;
}

.page-about .about-region-panel {
  padding: 18px 0 0;
}
.page-about .about-region-panel__num {
  margin: 0 0 8px;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.05;
  color: var(--core);
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.page-about .about-region-panel__num span {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.page-about .about-region-panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ab-ink-soft);
}
.page-about .about-inline-link {
  display: inline-block;
  margin-top: 18px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--core);
  text-decoration: none;
  border-bottom: 1px dashed var(--core);
  padding-bottom: 3px;
}
.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- 窄索引条 ---------- */
.page-about .about-strip {
  background: var(--core-soft);
  border: 3px solid var(--paper-ink);
  border-radius: var(--r-m);
  box-shadow: var(--shadow-soft);
  padding: 16px 18px;
  transform: rotate(-1deg);
}
.page-about .about-strip__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
}
.page-about .about-strip__list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-left: 3px solid var(--paper-ink);
  padding-left: 10px;
}
.page-about .about-strip__list strong {
  font-size: 26px;
  font-weight: 700;
  color: var(--paper-ink);
  line-height: 1;
}
.page-about .about-strip__list span {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(10, 26, 16, 0.72);
}

/* ---------- 团队 ---------- */
.page-about .about-team__figure {
  margin: 0 0 20px;
}
.page-about .about-team__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-about .about-team__item {
  position: relative;
  background: var(--panel-2);
  border: 2px solid var(--line-soft);
  border-left: 5px solid var(--kiwi);
  border-radius: var(--r-m);
  padding: 16px 18px;
}
.page-about .about-team__num {
  margin: 0;
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  color: var(--kiwi);
}
.page-about .about-team__item h3 {
  margin: 6px 0 8px;
  font-size: 18px;
  font-weight: 800;
  color: var(--paper);
}
.page-about .about-team__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ab-ink-soft);
}
.page-about .about-team__meta {
  margin-top: 12px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

/* ---------- 权益 ---------- */
.page-about .about-panel--rights {
  background: var(--panel);
}
.page-about .about-rights__panel {
  margin-top: 18px;
  background: var(--ink-deep);
  border: 2px solid var(--line-kiwi);
  border-radius: var(--r-m);
  padding: 18px;
}
.page-about .about-rights__suit {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--core);
}
.page-about .about-rights__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-about .about-rights__list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line-soft);
}
.page-about .about-rights__list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.page-about .about-rights__list span {
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 700;
  color: var(--kiwi-soft);
  padding-top: 2px;
}
.page-about .about-rights__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}
.page-about .about-rights__foot {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ab-ink-soft);
}
.page-about .about-rights__foot a {
  color: var(--core);
  text-decoration: none;
  border-bottom: 1px solid var(--core);
}
.page-about .about-rights__foot a:hover,
.page-about .about-rights__foot a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- 时间线 ---------- */
.page-about .about-panel--rail {
  background: var(--panel-2);
}
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
  counter-reset: ab-node;
}
.page-about .about-timeline__item {
  position: relative;
  padding-left: 26px;
  border-left: 2px dashed var(--line-kiwi);
}
.page-about .about-timeline__tick {
  position: absolute;
  left: -8px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--signal);
  border: 3px solid var(--panel-2);
}
.page-about .about-timeline__year {
  margin: 0;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--core);
}
.page-about .about-timeline__item h3 {
  margin: 6px 0 6px;
  font-size: 17px;
  font-weight: 800;
  color: var(--paper);
}
.page-about .about-timeline__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ab-ink-soft);
}

/* ---------- 合作 ---------- */
.page-about .about-panel--partner {
  background: var(--panel);
}
.page-about .about-partner__grid {
  display: grid;
  gap: 20px;
}
.page-about .about-partner__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}
.page-about .about-partner__stats div {
  flex: 1 1 120px;
  background: var(--ink-deep);
  border: 2px solid var(--line-kiwi);
  border-radius: var(--r-m);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-about .about-partner__stats strong {
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--core);
}
.page-about .about-partner__stats span {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.page-about .about-partner__figure {
  margin: 0;
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  background: linear-gradient(115deg, var(--kiwi) 0%, var(--kiwi-soft) 62%, var(--core-soft) 100%);
  border: 3px solid var(--paper-ink);
  border-radius: var(--r-l);
  box-shadow: var(--shadow-hard);
  padding: 24px 20px;
  display: grid;
  gap: 18px;
  color: var(--paper-ink);
}
.page-about .about-cta .eyebrow {
  color: rgba(10, 26, 16, 0.66);
}
.page-about .about-cta h2 {
  margin: 6px 0 8px;
  font-size: clamp(22px, 6vw, 34px);
  line-height: 1.18;
  font-weight: 900;
  color: var(--paper-ink);
}
.page-about .about-cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(10, 26, 16, 0.82);
  max-width: 48ch;
}
.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-about .about-strip__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-team__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
  .page-about .about-rights__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 22px;
  }
  .page-about .about-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 26px;
  }
  .page-about .about-cta {
    grid-template-columns: 5fr 7fr;
    align-items: center;
    padding: 30px 28px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 980px) {
  .page-about {
    --ab-panel-pad: 34px;
  }
  .page-about .about-hero__grid {
    grid-template-columns: 5fr 7fr;
    gap: 40px;
    align-items: start;
  }
  .page-about .about-panel__grid {
    grid-template-columns: 7fr 5fr;
    gap: 32px;
    align-items: start;
  }
  .page-about .about-map-wrap {
    grid-template-columns: 7fr 5fr;
    gap: 28px;
    align-items: start;
  }
  .page-about .about-partner__grid {
    grid-template-columns: 7fr 5fr;
    gap: 30px;
    align-items: start;
  }
  .page-about .about-team__figure {
    margin-bottom: 26px;
  }
  .page-about .about-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    border-top: 3px solid var(--line-kiwi);
    padding-top: 0;
  }
  .page-about .about-timeline__item {
    border-left: none;
    border-right: 2px dashed var(--line-kiwi);
    padding: 22px 18px 0 0;
    margin-right: 18px;
  }
  .page-about .about-timeline__item:last-child {
    border-right: none;
    margin-right: 0;
    padding-right: 0;
  }
  .page-about .about-timeline__tick {
    left: -8px;
    top: -8px;
  }
}

@media (min-width: 1180px) {
  .page-about .about-stack > *:nth-child(even) {
    margin-left: 42px;
  }
  .page-about .about-strip {
    padding: 18px 26px;
  }
}

/* ---------- 无障碍与降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-map__pulse {
    animation: none;
    opacity: 0.5;
  }
  .page-about .tab,
  .page-about .about-inline-link,
  .page-about .about-rights__foot a {
    transition: none;
  }
  .page-about .about-strip {
    transform: none;
  }
}
<<<END>>>