.page-about {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.85;
  overflow-wrap: break-word;
}

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

.page-about .about-shell {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 18px;
}

.page-about .about-crumb {
  padding: 14px 18px 0;
  max-width: var(--wrap);
  margin: 0 auto;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  margin: 14px 18px 0;
  border-radius: var(--radius);
  background: var(--ink-green);
  isolation: isolate;
}

.page-about .about-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-about .about-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.55) sepia(0.12) brightness(0.85);
}

.page-about .about-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(158deg, rgba(18, 59, 46, 0.95) 0%, rgba(18, 59, 46, 0.78) 46%, rgba(30, 91, 71, 0.6) 100%);
}

.page-about .about-hero__body {
  position: relative;
  z-index: 1;
  padding: 36px 22px 30px;
  color: var(--paper);
}

.page-about .about-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-pale);
}

.page-about .about-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 30px;
  line-height: 1.32;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .about-hero__lede {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(245, 240, 228, 0.86);
}

.page-about .about-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid rgba(232, 217, 168, 0.32);
}

.page-about .about-facts__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 12px;
  border-left: 2px solid var(--gold);
}

.page-about .about-facts__item strong {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--gold-soft);
  letter-spacing: 0.02em;
}

.page-about .about-facts__item span {
  font-size: 13px;
  color: rgba(245, 240, 228, 0.72);
}

/* ---------- 棋路主线 ---------- */
.page-about .about-flow {
  --line-x: 6px;
  --pad-l: 26px;
  position: relative;
  padding-left: var(--pad-l);
  padding-bottom: 40px;
}

.page-about .about-flow::before {
  content: "";
  position: absolute;
  left: var(--line-x);
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(201, 162, 39, 0.42) 55%, rgba(201, 162, 39, 0.08) 100%);
}

.page-about .about-chapter {
  position: relative;
  margin-top: 46px;
}

.page-about .about-chapter::before {
  content: "";
  position: absolute;
  top: 12px;
  left: calc(var(--line-x) + 1px - 6px - var(--pad-l));
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--gold);
  box-sizing: border-box;
}

.page-about .about-chapter--last::before {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
}

.page-about .about-chapter__head {
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gold-pale);
}

.page-about .about-chapter__num {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--celadon);
}

.page-about .about-chapter__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.4;
  color: var(--ink-green);
}

.page-about .about-chapter__body p {
  margin: 0 0 1.1em;
  font-size: 15.5px;
  color: var(--ink);
}

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

.page-about .about-chapter__body a {
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid rgba(78, 140, 138, 0.45);
}

.page-about .about-chapter__body a:hover {
  color: var(--ink-green);
  border-bottom-color: var(--gold);
}

.page-about .about-note {
  margin-top: 20px;
}

.page-about .about-note p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 分栏 ---------- */
.page-about .about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: 20px;
}

.page-about .about-subhead {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--pine-green);
}

.page-about .about-split__main p {
  margin: 0 0 1em;
  font-size: 15.5px;
}

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

.page-about .about-split__main a {
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid rgba(78, 140, 138, 0.45);
}

.page-about .about-split__main a:hover {
  color: var(--ink-green);
  border-bottom-color: var(--gold);
}

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

/* ---------- 同心圆分工图 ---------- */
.page-about .about-rings {
  display: block;
  width: 100%;
  max-width: 240px;
  height: auto;
  margin: 4px auto 22px;
}

.page-about .about-rings__ring {
  fill: none;
  stroke-width: 1;
}

.page-about .about-rings__ring--outer {
  stroke: var(--gold-pale);
}

.page-about .about-rings__ring--mid {
  stroke: var(--gold);
  stroke-dasharray: 4 4;
}

.page-about .about-rings__ring--inner {
  stroke: var(--celadon);
}

.page-about .about-rings__core {
  fill: var(--ink-green);
}

.page-about .about-rings__label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-about .about-rings__label--a {
  fill: var(--wood);
}

.page-about .about-rings__label--b {
  fill: var(--gold);
}

.page-about .about-rings__label--c {
  fill: var(--celadon);
}

.page-about .about-rings__center {
  fill: var(--gold-pale);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
}

.page-about .about-team {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-team__row {
  display: flex;
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--paper-deep);
}

.page-about .about-team__row:first-child {
  border-top: none;
  padding-top: 0;
}

.page-about .about-team__dot {
  flex: none;
  width: 10px;
  height: 10px;
  margin-top: 9px;
  border-radius: 50%;
}

.page-about .about-team__dot--a {
  background: var(--wood);
}

.page-about .about-team__dot--b {
  background: var(--gold);
}

.page-about .about-team__dot--c {
  background: var(--celadon);
}

.page-about .about-team__title {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-green);
}

.page-about .about-team__row p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 深色引语块 ---------- */
.page-about .about-quote {
  margin: 48px calc(-18px - var(--pad-l)) 0;
  padding: 40px calc(18px + var(--pad-l));
  background: var(--ink-green);
  color: var(--paper);
  position: relative;
}

.page-about .about-quote::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(201, 162, 39, 0) 70%);
}

.page-about .about-quote__text {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--gold-pale);
  max-width: 22em;
}

.page-about .about-quote__sign {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(245, 240, 228, 0.66);
}

/* ---------- 段位 ---------- */
.page-about .about-ranks {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px 6px;
  margin: 24px 0 0;
  padding: 22px 12px;
  list-style: none;
  background: var(--paper-card);
  border: 1px solid var(--paper-deep);
  border-radius: var(--radius);
}

.page-about .about-rank {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.page-about .about-rank__dot {
  display: grid;
  place-items: center;
  width: 100%;
  max-width: 46px;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--gold-pale);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-green);
  transition: transform 200ms var(--ease), background-color 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-about .about-rank:hover .about-rank__dot {
  transform: rotate(6deg);
  background: var(--ink-green);
  border-color: var(--gold);
  color: var(--gold-pale);
}

.page-about .about-rank__name {
  font-size: 12px;
  color: var(--wood);
  white-space: nowrap;
}

.page-about .about-ranks__note {
  margin: 12px 0 0;
  font-size: 13.5px;
  color: var(--wood);
}

/* ---------- 复核节奏 ---------- */
.page-about .about-cycle {
  margin: 22px 0 8px;
  padding: 26px 18px 20px;
  background: var(--paper-deep);
  border-radius: var(--radius);
}

.page-about .about-cycle__bar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  position: relative;
  padding-top: 14px;
}

.page-about .about-cycle__bar::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 19px;
  height: 2px;
  background: linear-gradient(90deg, rgba(201, 162, 39, 0.25) 0%, var(--gold) 50%, rgba(201, 162, 39, 0.25) 100%);
}

.page-about .about-cycle__pt {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-green);
}

.page-about .about-cycle__pt i {
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--gold);
}

.page-about .about-cycle__pt--autumn i {
  border-color: var(--cinnabar);
}

.page-about .about-cycle__cap {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-green);
  text-align: center;
}

/* ---------- 沿革 ---------- */
.page-about .about-timeline {
  margin-top: 18px;
}

.page-about .about-timeline .disclosure + .disclosure {
  margin-top: 10px;
}

.page-about .about-timeline .disclosure__trigger {
  gap: 10px;
}

.page-about .about-year {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cinnabar);
}

.page-about .about-timeline .disclosure__panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
}

/* ---------- 本地服务 ---------- */
.page-about .about-mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--ink-green);
  word-break: break-all;
}

.page-about .about-plate {
  padding: 22px 18px;
  background: var(--paper-card);
  border: 1px solid var(--gold-pale);
  border-radius: var(--radius);
}

.page-about .about-plate__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-green);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--paper-deep);
}

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

.page-about .about-plate__row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--paper-deep);
}

.page-about .about-plate__row:last-child {
  border-bottom: none;
}

.page-about .about-plate__row dt {
  font-size: 13.5px;
  color: var(--wood);
  flex: none;
}

.page-about .about-plate__row dd {
  margin: 0;
  font-size: 13.5px;
  color: var(--ink);
  text-align: right;
}

.page-about .about-plate__btn {
  margin-top: 18px;
  display: inline-block;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 780px) {
  .page-about .about-shell {
    padding: 0 32px;
  }

  .page-about .about-hero {
    margin: 20px auto 0;
    width: calc(100% - 64px);
    max-width: var(--wrap);
  }

  .page-about .about-hero__body {
    padding: 66px 56px 58px;
    max-width: 720px;
  }

  .page-about .about-hero__title {
    font-size: 48px;
    line-height: 1.26;
  }

  .page-about .about-hero__lede {
    font-size: 16px;
    margin-top: 22px;
  }

  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-top: 34px;
    padding-top: 22px;
  }

  .page-about .about-flow {
    --pad-l: 64px;
    --line-x: 20px;
    padding-bottom: 60px;
  }

  .page-about .about-chapter {
    margin-top: 66px;
  }

  .page-about .about-chapter::before {
    top: 14px;
    width: 14px;
    height: 14px;
    left: calc(var(--line-x) + 1px - 7px - var(--pad-l));
  }

  .page-about .about-chapter__title {
    font-size: 30px;
  }

  .page-about .about-chapter__body p {
    font-size: 16px;
    max-width: 46em;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 38px;
    margin-top: 26px;
    align-items: start;
  }

  .page-about .about-split--rev {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-about .about-note {
    max-width: 46em;
  }

  .page-about .about-quote {
    margin: 70px calc(-32px - var(--pad-l)) 0;
    padding: 62px calc(32px + var(--pad-l));
  }

  .page-about .about-quote__text {
    font-size: 34px;
    line-height: 1.5;
  }

  .page-about .about-quote__sign {
    font-size: 14.5px;
    margin-top: 22px;
    padding-left: 18px;
    border-left: 2px solid rgba(201, 162, 39, 0.5);
  }

  .page-about .about-rings {
    max-width: 270px;
    margin: 0 auto 28px;
  }

  .page-about .about-ranks {
    grid-template-columns: repeat(9, minmax(0, 1fr));
    gap: 10px;
    padding: 26px 20px;
  }

  .page-about .about-rank__dot {
    max-width: 52px;
    font-size: 17px;
  }

  .page-about .about-cycle {
    padding: 34px 40px 26px;
  }

  .page-about .about-cycle__bar {
    padding-top: 18px;
  }

  .page-about .about-cycle__bar::before {
    top: 23px;
  }

  .page-about .about-cycle__pt {
    font-size: 13px;
  }

  .page-about .about-plate {
    padding: 26px 24px;
  }
}

@media (min-width: 1080px) {
  .page-about .about-hero__title {
    font-size: 56px;
  }

  .page-about .about-chapter__title {
    font-size: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-rank__dot {
    transition: none;
  }

  .page-about .about-rank:hover .about-rank__dot {
    transform: none;
  }
}
<<<END>>>