.page-about {
  --about-mark-w: 78px;
  background-color: var(--paper);
  color: var(--brown);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

/* ---------- 封面 ---------- */

.page-about .about-cover {
  position: relative;
  padding-block: clamp(28px, 4vw, 52px) clamp(40px, 6vw, 84px);
  background-image: repeating-linear-gradient(
    90deg,
    rgba(217, 199, 167, 0.5) 0 1px,
    transparent 1px 96px
  );
  border-bottom: 1px solid var(--rule);
}

.page-about .about-crumb {
  margin-bottom: clamp(26px, 5vw, 56px);
}

.page-about .about-cover__inner {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
}

@media (min-width: 900px) {
  .page-about .about-cover__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: end;
    column-gap: clamp(32px, 5vw, 72px);
  }
}

.page-about .about-cover__eyebrow {
  margin: 0 0 clamp(14px, 2vw, 22px);
  color: var(--slate);
}

.page-about .about-cover__title {
  margin: 0 0 clamp(18px, 2.6vw, 30px);
  color: var(--ink);
  max-width: 13em;
  text-wrap: balance;
}

.page-about .about-cover__lede {
  max-width: 34em;
  margin: 0;
  color: var(--slate);
  font-size: clamp(15px, 1.7vw, 17px);
}

.page-about .about-cover__index {
  border-top: 1px solid var(--rule);
  padding-top: 14px;
}

.page-about .about-cover__indexhead {
  margin: 0 0 12px;
  color: var(--slate);
}

.page-about .about-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: aboutidx;
}

.page-about .about-index a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(217, 199, 167, 0.95);
  color: var(--brown);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .about-index a span {
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--slate);
  min-width: 1.7em;
}

.page-about .about-index a:hover,
.page-about .about-index a:focus-visible {
  color: var(--signal);
}

.page-about .about-index a:hover span,
.page-about .about-index a:focus-visible span {
  color: var(--signal);
}

/* ---------- 赛季刻度带 ---------- */

.page-about .about-seasons {
  background: var(--ink);
  color: var(--mist);
  border-block: 1px solid var(--ink);
  padding: 13px var(--edge);
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-about .about-seasons__list {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(232, 236, 239, 0.72);
}

.page-about .about-seasons__list li {
  display: flex;
  align-items: center;
  white-space: nowrap;
}

.page-about .about-seasons__list li + li::before {
  content: "";
  width: clamp(16px, 4vw, 46px);
  height: 1px;
  background: rgba(232, 236, 239, 0.28);
  margin-inline: 10px;
}

.page-about .about-seasons__list .is-now {
  color: var(--signal);
}

.page-about .about-seasons__list .is-now::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
  margin-left: 8px;
}

/* ---------- 主体：刻度列 + 章节 ---------- */

.page-about .about-body {
  display: grid;
  gap: 0;
  align-items: start;
  padding-top: clamp(20px, 3vw, 40px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-about .about-scale {
  position: sticky;
  top: var(--toolbar-h);
  z-index: 4;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-about .about-scale__head {
  display: none;
}

.page-about .about-scale__list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 8px 0;
}

.page-about .about-scale__mark {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--slate);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.page-about .about-scale__num {
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: 0.06em;
}

.page-about .about-scale__name {
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-about .about-scale__mark:hover,
.page-about .about-scale__mark:focus-visible {
  color: var(--signal);
  background: rgba(255, 107, 26, 0.09);
}

@media (min-width: 1000px) {
  .page-about .about-body {
    grid-template-columns: var(--about-mark-w) minmax(0, 1fr);
    column-gap: clamp(28px, 4vw, 64px);
    padding-top: clamp(36px, 4vw, 64px);
  }

  .page-about .about-scale {
    position: sticky;
    top: calc(var(--toolbar-h) + 36px);
    align-self: start;
    background: transparent;
    border-bottom: 0;
    border-left: 1px solid var(--rule);
    padding-left: 16px;
    overflow: visible;
  }

  .page-about .about-scale__head {
    display: block;
    margin: 0 0 16px;
    font-size: 11px;
    letter-spacing: 0.24em;
    color: var(--slate);
  }

  .page-about .about-scale__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 0;
  }

  .page-about .about-scale__mark {
    padding: 0;
    border-radius: 0;
    flex-direction: column;
    gap: 2px;
  }

  .page-about .about-scale__name {
    font-size: 11px;
    color: inherit;
  }
}

.page-about .about-chapters {
  min-width: 0;
}

/* ---------- 章节通用 ---------- */

.page-about .about-chapter {
  scroll-margin-top: calc(var(--toolbar-h) + 76px);
  padding-block: clamp(40px, 5vw, 72px);
  border-top: 1px solid var(--rule);
}

.page-about .about-chapter:first-child {
  border-top: 0;
  padding-top: clamp(26px, 3vw, 44px);
}

.page-about .about-chapter__outline {
  border-left: 2px solid var(--rule);
  padding-left: clamp(14px, 2vw, 22px);
  margin-bottom: clamp(20px, 3vw, 34px);
  transition: border-color 0.3s ease;
}

.page-about .about-chapter:target .about-chapter__outline {
  border-left-color: var(--signal);
}

.page-about .about-chapter__idx {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: 25px;
  line-height: 1;
  letter-spacing: 0.08em;
  color: var(--field);
}

.page-about .about-chapter__kicker {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--slate);
}

.page-about .about-chapter__title {
  margin: 0;
  color: var(--ink);
}

/* ---------- 沿革标记 ---------- */

.page-about .about-marks {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-about .about-mark {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
}

.page-about .about-mark__num {
  font-family: var(--font-num);
  font-size: clamp(17px, 3vw, 21px);
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--field);
}

.page-about .about-mark__period {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--slate);
}

.page-about .about-mark p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 图片 ---------- */

.page-about .about-figure {
  margin: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.page-about .about-figure--wide {
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-about .about-figure--wide img {
  aspect-ratio: 2 / 1;
  border-radius: var(--radius-lg);
}

.page-about .about-figure--pan {
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-about .about-figure--pan img {
  aspect-ratio: 2 / 1;
  border-radius: var(--radius-lg);
}

.page-about .about-figure--tall img {
  aspect-ratio: 4 / 5;
}

.page-about .about-figure .media__caption {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

/* ---------- 双栏（正文 + 窄图） ---------- */

.page-about .about-duo {
  display: grid;
  gap: clamp(22px, 3vw, 32px);
  margin-top: clamp(24px, 4vw, 40px);
  align-items: start;
}

@media (min-width: 760px) {
  .page-about .about-duo {
    grid-template-columns: minmax(0, 1fr) 208px;
  }
}

/* ---------- 复核流程折叠 ---------- */

.page-about .about-flow {
  margin-top: clamp(26px, 4vw, 42px);
  border-top: 1px solid var(--rule);
}

.page-about .about-step {
  border-bottom: 1px solid var(--rule);
}

.page-about .about-step > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
}

.page-about .about-step > summary::-webkit-details-marker {
  display: none;
}

.page-about .about-step > summary::marker {
  content: "";
}

.page-about .about-step .accordion__idx {
  font-family: var(--font-num);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--slate);
  transition: color 0.25s ease;
}

.page-about .about-step .accordion__label {
  font-size: 16px;
  color: var(--brown);
  transition: color 0.25s ease;
}

.page-about .about-step .accordion__meta {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-about .about-step__sign {
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 17px;
  line-height: 1;
  color: var(--slate);
}

.page-about .about-step__sign::before {
  content: "＋";
}

.page-about .about-step[open] .about-step__sign::before {
  content: "－";
}

.page-about .about-step[open] .accordion__idx {
  color: var(--signal);
}

.page-about .about-step[open] .accordion__label {
  color: var(--ink);
}

.page-about .about-step .accordion__panel {
  padding: 0 0 18px;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--slate);
}

.page-about .about-step .accordion__panel p {
  margin: 0;
}

/* ---------- 四类口径台账 ---------- */

.page-about .about-ledger {
  margin-top: clamp(26px, 4vw, 42px);
  border-top: 1px solid var(--rule);
}

.page-about .about-ledger__row {
  display: grid;
  gap: 10px;
  padding: clamp(20px, 3vw, 30px) 0;
  border-bottom: 1px solid var(--rule);
}

.page-about .about-ledger__idx {
  margin: 0;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--field);
}

.page-about .about-ledger__title {
  margin: 0;
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-about .about-ledger__meta {
  margin: 0;
  display: grid;
  gap: 7px;
  max-width: 40em;
}

.page-about .about-ledger__meta > div {
  display: grid;
  grid-template-columns: 5.4em minmax(0, 1fr);
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.75;
}

.page-about .about-ledger__meta dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-about .about-ledger__meta dd {
  margin: 0;
  color: var(--brown);
}

.page-about .about-ledger__note {
  margin: 4px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--rule);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--slate);
  max-width: 38em;
}

@media (min-width: 760px) {
  .page-about .about-ledger__row {
    grid-template-columns: 104px minmax(0, 1fr);
    column-gap: 28px;
    row-gap: 8px;
  }

  .page-about .about-ledger__idx {
    grid-column: 1;
    grid-row: 1 / -1;
  }

  .page-about .about-ledger__title,
  .page-about .about-ledger__meta,
  .page-about .about-ledger__note {
    grid-column: 2;
  }
}

/* ---------- 内容边界 ---------- */

.page-about .about-boundary {
  list-style: none;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-about .about-boundary li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.page-about .about-boundary__mark {
  font-family: var(--font-num);
  font-size: 18px;
  line-height: 1.3;
  color: var(--alert);
}

.page-about .about-boundary strong {
  display: block;
  margin-bottom: 5px;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
}

.page-about .about-boundary p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate);
  max-width: 34em;
}

/* ---------- 受理事项 ---------- */

.page-about .about-cases {
  list-style: none;
  margin: clamp(24px, 4vw, 38px) 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-about .about-cases li {
  border-bottom: 1px solid var(--rule);
}

.page-about .about-cases__link {
  display: grid;
  gap: 5px;
  padding: 16px 0;
  color: inherit;
  text-decoration: none;
  transition: padding-left 0.24s ease;
}

.page-about .about-cases__name {
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  transition: color 0.22s ease;
}

.page-about .about-cases__desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
  max-width: 36em;
}

.page-about .about-cases__link:hover,
.page-about .about-cases__link:focus-visible {
  padding-left: 12px;
}

.page-about .about-cases__link:hover .about-cases__name,
.page-about .about-cases__link:focus-visible .about-cases__name {
  color: var(--signal);
}

.page-about .prose a {
  color: var(--field);
  text-decoration: underline;
  text-decoration-color: rgba(11, 110, 79, 0.35);
  text-underline-offset: 3px;
}

.page-about .prose a:hover,
.page-about .prose a:focus-visible {
  color: var(--signal);
  text-decoration-color: var(--signal);
}

/* ---------- 章节收尾索引条 ---------- */

.page-about .about-endnav {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 26px;
  margin-top: clamp(32px, 5vw, 52px);
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}

.page-about .about-endnav__link {
  color: var(--brown);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 3px;
  transition: color 0.22s ease, border-color 0.22s ease;
}

.page-about .about-endnav__link:hover,
.page-about .about-endnav__link:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-about .about-endnav__current {
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--slate);
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>