.page-about {
  --about-rule: rgba(43, 74, 99, 0.26);
  --about-rule-soft: rgba(43, 74, 99, 0.16);
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: clip;
}

.page-about .about-crumb {
  padding: clamp(14px, 2.4vw, 24px) 0 0;
}

/* ---------- 首屏框景 ---------- */
.page-about .about-hero {
  padding: clamp(14px, 2.6vw, 30px) 0 clamp(40px, 7vw, 96px);
}

.page-about .about-hero__frame {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  padding: clamp(22px, 4vw, 54px);
  border: 1px solid var(--about-rule);
  background:
    linear-gradient(180deg, rgba(11, 27, 43, 0.05), rgba(11, 27, 43, 0) 48%),
    var(--paper);
}

.page-about .about-hero__frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: repeating-linear-gradient(90deg, var(--line-blue) 0 1px, transparent 1px 26px);
  opacity: 0.32;
}

.page-about .about-hero__kicker {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dy-orange-deep);
}

.page-about .about-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(36px, 7.4vw, 90px);
  line-height: 0.98;
  letter-spacing: 0.006em;
  color: var(--ink);
  text-wrap: balance;
}

.page-about .about-hero__lede {
  margin: 0 0 clamp(20px, 3vw, 28px);
  max-width: 46ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--ink-800);
}

.page-about .about-facts {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: clamp(16px, 2vw, 20px) 0 0;
  list-style: none;
  border-top: 2px solid var(--dy-orange);
}

.page-about .about-fact {
  display: grid;
  grid-template-columns: 66px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
}

.page-about .about-fact__num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-about .about-fact__lbl {
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-800);
}

@media (min-width: 900px) {
  .page-about .about-hero__frame {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: end;
  }
}

/* ---------- 章节骨架 ---------- */
.page-about .about-sec {
  padding: clamp(48px, 7vw, 104px) 0;
}

.page-about .about-sec--soft {
  background: var(--cool);
}

.page-about .about-sec--ink {
  position: relative;
  background: var(--ink);
  color: var(--cool);
}

.page-about .about-sec--ink::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line-blue);
}

.page-about .about-grid {
  display: grid;
  gap: clamp(22px, 3.5vw, 48px);
}

.page-about .about-idx {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--dy-orange-deep);
}

.page-about .about-idx--dark {
  color: var(--dy-orange);
}

.page-about .about-h2 {
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 3.6vw, 46px);
  line-height: 1.1;
  letter-spacing: 0.004em;
  color: var(--ink);
  text-wrap: balance;
}

.page-about .about-sec--ink .about-h2 {
  color: var(--paper);
}

.page-about .about-prose {
  display: grid;
  gap: clamp(14px, 1.6vw, 18px);
  max-width: 66ch;
}

.page-about .about-prose p {
  margin: 0;
  font-size: clamp(15px, 1.55vw, 16.5px);
  line-height: 1.82;
  color: var(--ink-800);
}

.page-about .about-prose a {
  color: var(--dy-orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-sec--ink .about-lede-dark {
  margin: 0;
  max-width: 44ch;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.8;
  color: var(--cool);
}

.page-about .about-sec-head {
  max-width: 760px;
}

.page-about .about-sec-head__lede {
  margin: 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--ink-800);
}

@media (min-width: 900px) {
  .page-about .about-grid--3-9 {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  }
  .page-about .about-grid--5-7 {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

/* ---------- 图片与旁注 ---------- */
.page-about .about-figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
}

.page-about .about-figure .media-frame {
  max-width: 100%;
}

.page-about .about-figure .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-about .media-frame--tilt {
    transform: rotate(-1.6deg);
    transform-origin: center;
  }
}

.page-about .about-note {
  margin-top: clamp(22px, 3vw, 32px);
  padding: 2px 0 2px 18px;
  max-width: 62ch;
  border-left: 2px solid var(--dy-orange);
}

.page-about .about-note__title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
}

.page-about .about-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-800);
}

/* ---------- 团队构成 ---------- */
.page-about .team-list {
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-rule);
}

.page-about .team-row {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  gap: 6px 14px;
  align-items: baseline;
  padding: 16px 10px 16px 12px;
  border-bottom: 1px solid var(--about-rule-soft);
  border-left: 2px solid transparent;
  transition: background 0.22s var(--ease), border-color 0.22s var(--ease), padding-left 0.22s var(--ease);
}

.page-about .team-row:hover,
.page-about .team-row:focus-within {
  background: var(--paper);
  border-left-color: var(--dy-orange);
  padding-left: 18px;
}

.page-about .team-row__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--dy-orange-deep);
}

.page-about .team-row__body {
  min-width: 0;
}

.page-about .team-row__role {
  display: block;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-about .team-row__desc {
  display: block;
  margin-top: 3px;
  font-size: 14px;
  line-height: 1.66;
  color: var(--ink-800);
}

.page-about .team-row__count {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink);
  white-space: nowrap;
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  display: grid;
  gap: 18px;
  margin-top: clamp(28px, 4vw, 48px);
}

.page-about .about-timeline .accordion__item {
  position: relative;
  padding: 14px 0 8px;
  border-top: 1px solid var(--line-blue);
}

.page-about .about-timeline .accordion__item::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--dy-orange);
  transform: rotate(45deg);
}

.page-about .about-timeline .accordion__trigger {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  width: 100%;
  margin: 0;
  padding: 0 0 10px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--ink);
  font-family: var(--font-body);
}

.page-about .about-timeline .accordion__index {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .about-timeline .accordion__label {
  display: block;
  width: 100%;
  font-family: var(--font-display);
  font-size: clamp(17px, 1.8vw, 21px);
  font-weight: 700;
  line-height: 1.28;
  color: var(--ink);
}

.page-about .about-timeline .accordion__icon {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--dy-orange-deep);
}

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

.page-about .about-timeline .accordion__item[data-open] .accordion__icon::before {
  content: "-";
}

.page-about .about-timeline .accordion__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--ink-800);
}

@media (min-width: 860px) {
  .page-about .about-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(14px, 2vw, 26px);
    align-items: start;
  }
  .page-about .about-timeline .accordion__item:nth-child(2) {
    margin-top: 30px;
  }
  .page-about .about-timeline .accordion__item:nth-child(3) {
    margin-top: 60px;
  }
  .page-about .about-timeline .accordion__item:nth-child(4) {
    margin-top: 90px;
  }
}

/* ---------- 统计条 ---------- */
.page-about .region-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-blue);
  border: 1px solid var(--line-blue);
}

.page-about .region-stat {
  padding: clamp(16px, 2vw, 24px) clamp(12px, 1.6vw, 18px);
  background: var(--ink);
}

.page-about .region-stat__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1;
  color: var(--paper);
}

.page-about .region-stat__num small {
  margin-left: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.page-about .region-stat__lbl {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.5;
  letter-spacing: 0.05em;
  color: var(--steel);
}

@media (min-width: 720px) {
  .page-about .region-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 荣誉 ---------- */
.page-about .about-award {
  display: grid;
  gap: 8px;
  margin-top: clamp(26px, 3.4vw, 38px);
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--cool);
  border-left: 3px solid var(--dy-orange);
}

.page-about .about-award__year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--dy-orange-deep);
}

.page-about .about-award__text {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 26px);
  line-height: 1.22;
  color: var(--ink);
}

.page-about .about-award__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-800);
}

/* ---------- 收尾入口 ---------- */
.page-about .about-cta-wrap {
  padding: clamp(40px, 6vw, 88px) 0 clamp(48px, 7vw, 104px);
  background: var(--paper);
}

.page-about .about-cta {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 56px);
  background: var(--ink-800);
  color: var(--paper);
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 120px;
  height: 120px;
  background: var(--dy-orange);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  opacity: 0.85;
  pointer-events: none;
}

.page-about .about-cta__title {
  position: relative;
  z-index: 1;
  margin: 0 0 clamp(18px, 2.4vw, 28px);
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.14;
  color: var(--paper);
}

.page-about .about-cta__links {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 560px) {
  .page-about .about-cta::after {
    width: 72px;
    height: 72px;
  }
  .page-about .about-cta__links .btn {
    width: 100%;
    text-align: center;
  }
}
<<<END>>>