.page-about {
  --about-gap: clamp(16px, 3vw, 24px);
  --about-rule: rgba(244, 247, 242, 0.14);
  --about-shadow: 6px 6px 0 #040C0A;
}

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

.page-about .about-h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.65rem, 5vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 10px 0 0;
  color: var(--text);
}

.page-about .about-section-head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 4vw, 34px);
}

.page-about .about-section-head__lead {
  margin: 12px 0 0;
  color: var(--text-dim);
  max-width: 54ch;
  font-size: 1rem;
  line-height: 1.7;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  padding: clamp(20px, 4vw, 36px) 0 clamp(38px, 6vw, 68px);
  border-bottom: 2px solid var(--about-rule);
  overflow-x: clip;
  background:
    radial-gradient(120% 90% at 92% 0%, rgba(198, 255, 46, 0.10), transparent 62%),
    radial-gradient(80% 70% at 0% 100%, rgba(52, 224, 200, 0.08), transparent 60%),
    var(--c-green);
}

.page-about .breadcrumb {
  margin-bottom: clamp(20px, 4vw, 34px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(26px, 5vw, 44px);
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 12px 0 18px;
  transform: skewX(-3deg);
  transform-origin: left bottom;
}

.page-about .about-hero__title span {
  display: block;
  font-size: 0.52em;
  letter-spacing: -0.01em;
  color: var(--c-lime);
  margin-top: 10px;
  transform: skewX(0deg);
}

.page-about .about-hero__lead .page-lead {
  max-width: 46ch;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* 记分板 */
.page-about .about-board {
  background: var(--c-teal);
  border: 2px solid var(--line-lime);
  box-shadow: var(--about-shadow);
  padding: clamp(16px, 3vw, 22px);
  transform: rotate(-1.1deg);
}

.page-about .about-board__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--c-lime);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-about .about-board__label::before {
  content: "";
  width: 22px;
  height: 8px;
  background: var(--c-lime);
  transform: skewX(-18deg);
}

.page-about .about-board__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-lime);
  border: 1px solid var(--line-lime);
}

.page-about .about-board__item {
  background: var(--c-teal);
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 78px;
  justify-content: space-between;
}

.page-about .about-board__key {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

.page-about .about-board__val {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 5.4vw, 1.9rem);
  line-height: 1;
  color: var(--c-lime);
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.page-about .about-board__val em {
  font-style: normal;
  font-size: 0.46em;
  color: var(--text-dim);
}

.page-about .about-board__item--hot .about-board__val {
  color: var(--c-orange);
}

.page-about .about-board__note {
  margin: 14px 0 0;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--text-dim);
  border-top: 1px dashed var(--about-rule);
  padding-top: 12px;
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 44px;
  }
  .page-about .about-board {
    margin-top: 6px;
  }
}

/* ---------- 起点 ---------- */
.page-about .about-origins__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-about .about-origins__copy p {
  margin: 14px 0 0;
  font-size: 1.02rem;
  line-height: 1.78;
  color: var(--text);
  max-width: 48ch;
}

.page-about .about-origins__copy p:first-of-type {
  margin-top: 18px;
}

.page-about .about-origins__points {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-origins__points li {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 7px 12px;
  border: 2px solid var(--line-lime);
  color: var(--c-lime);
  transform: skewX(-6deg);
  background: rgba(198, 255, 46, 0.06);
}

@media (min-width: 900px) {
  .page-about .about-origins__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
  }
}

/* ---------- 图片容器 ---------- */
.page-about .about-figure {
  margin: 0;
  border: 2px solid var(--about-rule);
  box-shadow: var(--about-shadow);
  background: var(--c-black);
  overflow: hidden;
}

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

.page-about .about-figure--wide {
  aspect-ratio: 4 / 3;
}

.page-about .about-figure--wide img {
  transform: skewX(-3deg) scale(1.07);
}

.page-about .about-figure--band {
  aspect-ratio: 16 / 9;
  margin-bottom: clamp(24px, 4vw, 38px);
}

.page-about .about-figure--square {
  aspect-ratio: 4 / 3;
}

.page-about .about-figure figcaption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  padding: 9px 12px;
  border-top: 2px solid var(--about-rule);
  background: var(--c-black);
}

@media (min-width: 760px) {
  .page-about .about-figure--wide,
  .page-about .about-figure--square {
    aspect-ratio: 2 / 1;
  }
  .page-about .about-figure--band {
    aspect-ratio: 21 / 9;
  }
}

/* ---------- 团队 ---------- */
.page-about .about-roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-about .about-role {
  border: 2px solid var(--about-rule);
  background: var(--c-teal);
  padding: 18px 16px 16px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-about .about-role:hover,
.page-about .about-role:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: var(--about-shadow);
  border-color: var(--line-lime);
}

.page-about .about-role__num {
  font-family: var(--font-mono);
  font-size: 2.1rem;
  line-height: 1;
  color: var(--c-orange);
  margin: 0;
}

.page-about .about-role__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.15rem;
  margin: 8px 0 6px;
  color: var(--text);
  letter-spacing: 0.01em;
}

.page-about .about-role__text {
  margin: 0 0 12px;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-about .about-role .tag {
  display: inline-block;
}

.page-about .about-team__tail {
  margin: 24px 0 0;
  padding-left: 14px;
  border-left: 4px solid var(--c-lime);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-dim);
  max-width: 52ch;
}

@media (min-width: 640px) {
  .page-about .about-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-about .about-roles {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline__body {
  display: grid;
  gap: 20px;
}

.page-about .about-years {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-about .about-years__link {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--text-dim);
  background: var(--c-black);
  border: 2px solid var(--about-rule);
  padding: 9px 14px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.page-about .about-years__link:hover,
.page-about .about-years__link:focus-visible {
  color: var(--c-green);
  background: var(--c-lime);
  border-color: var(--c-lime);
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .year-card {
  background: var(--c-black);
  border-top: 1px solid var(--about-rule);
  border-right: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
  border-left: 4px solid var(--c-lime);
  padding: 16px 18px;
  transition: background 0.18s ease, border-left-color 0.18s ease;
}

.page-about .year-card:hover {
  background: var(--c-teal);
}

.page-about .year-card:target {
  background: var(--c-teal);
  border-left-color: var(--c-orange);
}

.page-about .year-card__year {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--c-orange);
  margin: 0 0 6px;
  letter-spacing: 0.06em;
}

.page-about .year-card__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.2rem;
  margin: 0 0 8px;
  color: var(--text);
}

.page-about .year-card__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--text-dim);
}

@media (min-width: 900px) {
  .page-about .about-timeline__body {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
  .page-about .about-years {
    flex-direction: column;
    overflow: visible;
    position: sticky;
    top: calc(var(--header-h) + 20px);
    padding-bottom: 0;
  }
  .page-about .about-years__link {
    border-left-width: 4px;
  }
}

/* ---------- 校验 ---------- */
.page-about .about-checks__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-checks__steps {
  display: block;
}

.page-about .about-step {
  border: 2px solid var(--about-rule);
  background: var(--c-green);
  transition: border-color 0.18s ease;
}

.page-about .about-step + .about-step {
  margin-top: 12px;
}

.page-about .about-step[open] {
  border-color: var(--line-lime);
}

.page-about .about-step__head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  min-height: 52px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.02rem;
  color: var(--text);
}

.page-about .about-step__head::-webkit-details-marker {
  display: none;
}

.page-about .about-step__head::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 1.3rem;
  line-height: 1;
  color: var(--c-lime);
}

.page-about .about-step[open] .about-step__head::after {
  content: "\2212";
}

.page-about .about-step[open] .about-step__head {
  background: var(--c-teal);
}

.page-about .about-step__no {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--c-orange);
  letter-spacing: 0.08em;
}

.page-about .about-step__text {
  margin: 0;
  padding: 4px 18px 18px;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-dim);
  border-top: 1px dashed var(--about-rule);
  padding-top: 14px;
}

.page-about .about-cadence {
  background: var(--c-black);
  border: 2px solid var(--line-lime);
  box-shadow: var(--about-shadow);
  padding: 18px 16px;
}

.page-about .about-cadence__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  margin: 0 0 14px;
  color: var(--c-lime);
  letter-spacing: 0.02em;
}

.page-about .about-cadence__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-cadence__item {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--about-rule);
}

.page-about .about-cadence__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-cadence__time {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--c-timer);
  letter-spacing: 0.02em;
}

.page-about .about-cadence__text {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text);
}

@media (min-width: 900px) {
  .page-about .about-checks__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 28px;
  }
}

/* ---------- 合作与荣誉 ---------- */
.page-about .about-honors {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 4px 4px 16px;
  scrollbar-width: thin;
}

.page-about .about-honors:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: 4px;
}

.page-about .honor-card {
  flex: 0 0 82%;
  scroll-snap-align: start;
  background: var(--c-teal);
  border: 2px solid var(--about-rule);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 216px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-about .honor-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--about-shadow);
  border-color: var(--line-orange);
}

.page-about .honor-card__figure {
  font-family: var(--font-mono);
  font-size: 2rem;
  line-height: 1;
  color: var(--c-orange);
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 3px;
}

.page-about .honor-card__figure em {
  font-style: normal;
  font-size: 0.42em;
  color: var(--text-dim);
}

.page-about .honor-card__label {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  margin: 0;
  color: var(--text);
  line-height: 1.3;
}

.page-about .honor-card__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-dim);
}

@media (min-width: 700px) {
  .page-about .honor-card {
    flex-basis: 46%;
  }
}

@media (min-width: 1100px) {
  .page-about .honor-card {
    flex-basis: 30%;
  }
}

/* ---------- 区域协作 ---------- */
.page-about .about-region__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-about .about-region__copy p {
  margin: 14px 0 0;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--text);
  max-width: 50ch;
}

.page-about .about-contact {
  margin: 24px 0 0;
  padding: 0;
  border-top: 2px solid var(--about-rule);
}

.page-about .about-contact__row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--about-rule);
}

.page-about .about-contact__key {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--c-timer);
  letter-spacing: 0.04em;
  padding-top: 2px;
}

.page-about .about-contact__value {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-about .about-region__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

@media (min-width: 640px) {
  .page-about .about-contact__row {
    grid-template-columns: 100px minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-about .about-region__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
  }
  .page-about .about-region__grid .about-figure {
    order: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-role,
  .page-about .honor-card,
  .page-about .year-card,
  .page-about .about-years__link {
    transition: none;
  }
  .page-about .about-role:hover,
  .page-about .honor-card:hover {
    transform: none;
  }
  .page-about .about-hero__title {
    transform: none;
  }
  .page-about .about-board {
    transform: none;
  }
}
<<<END>>>