.page-about {
  --about-cut: 20px;
  --about-gap: clamp(1.25rem, 3vw, 2.5rem);
  --about-shadow: 0 24px 60px rgba(2, 8, 18, 0.55);
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

.page-about .section {
  padding-block: clamp(2.25rem, 5vw, 4.5rem);
}

.page-about .eyebrow {
  letter-spacing: 0.22em;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-top: clamp(0.75rem, 2vw, 1.5rem);
}

.page-about .about-hero__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-hero h1.display-title {
  font-size: clamp(2rem, 7.2vw, 4.1rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin-top: 0.5rem;
}

.page-about .about-hero__accent {
  display: block;
  margin-top: 0.35rem;
  background: linear-gradient(96deg, var(--cyan) 0%, var(--violet) 58%, var(--magenta) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-about .about-hero__copy .lede {
  margin-top: 1.15rem;
  max-width: 46ch;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
  margin: 2rem 0 0;
  padding: 1.1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .about-fact {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}

.page-about .about-fact__num {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 5.4vw, 2.3rem);
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.page-about .about-fact__num small {
  font-size: 0.42em;
  margin-left: 0.15em;
  color: var(--orange);
  letter-spacing: 0.04em;
}

.page-about .about-fact__label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  line-height: 1.5;
}

/* 运行概览面板 */
.page-about .about-panel {
  position: relative;
  padding: clamp(1.25rem, 3vw, 1.9rem);
  background:
    linear-gradient(155deg, rgba(77, 245, 255, 0.09), transparent 46%),
    linear-gradient(180deg, var(--panel-strong), var(--panel));
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, var(--about-cut) 100%, 0 calc(100% - var(--about-cut)));
  box-shadow: var(--about-shadow);
}

.page-about .about-panel::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--magenta));
}

.page-about .about-panel__kicker {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-panel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.1rem;
}

.page-about .about-panel__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.72rem 0;
  border-bottom: 1px dashed rgba(123, 218, 255, 0.18);
}

.page-about .about-panel__key {
  font-size: 0.86rem;
  color: var(--muted);
}

.page-about .about-panel__val {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--orange);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-about .about-panel__note {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--dim);
}

/* ---------- 我们做什么 ---------- */
.page-about .about-mission__grid {
  display: grid;
  gap: var(--about-gap);
  align-items: start;
}

.page-about .about-mission__media {
  margin: 0;
  border: 1px solid var(--line);
}

.page-about .about-mission__copy p {
  margin-top: 1rem;
  color: var(--muted);
  line-height: 1.9;
}

.page-about .about-mission__points {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-about .about-mission__points li {
  position: relative;
  padding: 0.95rem 1rem 0.95rem 2.2rem;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--muted);
  background: rgba(10, 28, 49, 0.7);
  border-left: 2px solid var(--line-strong);
}

.page-about .about-mission__points li::before {
  content: "▸";
  position: absolute;
  left: 0.85rem;
  top: 0.85rem;
  color: var(--cyan);
  font-size: 0.8rem;
}

.page-about .about-mission__points strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--ink);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

/* ---------- 三类访客 ---------- */
.page-about .about-audience .section-head {
  max-width: 60ch;
}

.page-about .about-audience__rail {
  display: flex;
  gap: 1rem;
  margin-top: 1.75rem;
  padding: 0.25rem var(--pad) 1.25rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-audience__card {
  position: relative;
  flex: 0 0 min(82vw, 22rem);
  scroll-snap-align: start;
  padding: 1.4rem 1.3rem 1.5rem;
  background: linear-gradient(180deg, rgba(14, 39, 67, 0.92), rgba(7, 20, 38, 0.92));
  border: 1px solid var(--line);
  border-top-width: 3px;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-about .about-audience__card--cyan {
  border-top-color: var(--cyan);
}

.page-about .about-audience__card--orange {
  border-top-color: var(--orange);
}

.page-about .about-audience__card--magenta {
  border-top-color: var(--magenta);
}

.page-about .about-audience__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--dim);
}

.page-about .about-audience__card .card__title {
  margin: 0;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.page-about .about-audience__card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-audience__meta {
  margin-top: auto;
  padding-top: 0.8rem;
  border-top: 1px dashed rgba(123, 218, 255, 0.16);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--orange) !important;
}

/* ---------- 四步路径 ---------- */
.page-about .about-path__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-path__intro p {
  margin-top: 1rem;
  color: var(--muted);
  line-height: 1.9;
  max-width: 42ch;
}

.page-about .about-path__link {
  margin-top: 1.4rem;
}

.page-about .about-path__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
  counter-reset: none;
}

.page-about .about-step {
  position: relative;
  display: grid;
  grid-template-columns: 3.1rem minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1.15rem 0 1.15rem 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-step:first-child {
  border-top: 1px solid var(--line);
}

.page-about .about-step__num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--cyan);
  padding-top: 0.15rem;
}

.page-about .about-step:hover .about-step__num {
  color: var(--cyan);
  -webkit-text-stroke: 1px transparent;
}

.page-about .about-step__title {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-about .about-step__body p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 权益与资源 ---------- */
.page-about .about-assets__grid {
  display: grid;
  gap: var(--about-gap);
  align-items: start;
}

.page-about .about-assets__copy p {
  margin-top: 1rem;
  color: var(--muted);
  line-height: 1.9;
}

.page-about .about-assets__list {
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 2px solid var(--magenta);
}

.page-about .about-assets__item {
  display: grid;
  gap: 0.3rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-assets__item dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--magenta);
}

.page-about .about-assets__item dd {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-about .about-assets__media {
  margin: 0;
  border: 1px solid var(--line-strong);
}

/* ---------- 数字面板 ---------- */
.page-about .about-score__head {
  max-width: 52ch;
}

.page-about .about-score__board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1.75rem;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-score__cell {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: clamp(1.05rem, 3vw, 1.6rem);
  background: linear-gradient(170deg, var(--bg-2), var(--bg-1));
}

.page-about .about-score__num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3.1rem);
  font-weight: 700;
  line-height: 0.95;
  color: var(--cyan);
  letter-spacing: -0.03em;
}

.page-about .about-score__num small {
  font-size: 0.4em;
  margin-left: 0.1em;
  color: var(--orange);
}

.page-about .about-score__cell:nth-child(2) .about-score__num {
  color: var(--orange);
}

.page-about .about-score__cell:nth-child(3) .about-score__num {
  color: var(--violet);
}

.page-about .about-score__cell:nth-child(4) .about-score__num {
  color: var(--magenta);
}

.page-about .about-score__unit {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-about .about-score__cell p {
  margin: 0.35rem 0 0;
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--dim);
}

/* ---------- 结尾 ---------- */
.page-about .about-cta {
  padding-bottom: clamp(1rem, 3vw, 2rem);
}

.page-about .about-cta__inner {
  position: relative;
  display: grid;
  gap: 1.5rem;
  padding: clamp(1.5rem, 4vw, 2.6rem);
  background:
    radial-gradient(circle at 88% 12%, rgba(255, 63, 164, 0.16), transparent 55%),
    linear-gradient(120deg, rgba(77, 245, 255, 0.1), transparent 60%),
    var(--panel);
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
}

.page-about .about-cta__copy p {
  margin-top: 0.9rem;
  max-width: 56ch;
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-self: end;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-audience__rail {
    padding-inline: max(var(--pad), calc((100vw - var(--max)) / 2));
  }

  .page-about .about-score__board {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-assets__item {
    grid-template-columns: 8.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 1rem;
  }
}

@media (min-width: 980px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: end;
    gap: clamp(1.5rem, 3.5vw, 3.5rem);
  }

  .page-about .about-panel {
    margin-bottom: 0.55rem;
  }

  .page-about .about-mission__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(1.75rem, 4vw, 3.5rem);
  }

  .page-about .about-mission__media {
    order: 2;
  }

  .page-about .about-mission__copy {
    order: 1;
  }

  .page-about .about-audience__rail {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
    overflow: visible;
    padding-inline: 0;
    max-width: var(--max);
    margin-inline: auto;
    padding-left: var(--pad);
    padding-right: var(--pad);
  }

  .page-about .about-audience__card {
    flex: initial;
  }

  .page-about .about-path__grid {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1fr);
    gap: clamp(1.75rem, 4vw, 3.5rem);
    align-items: start;
  }

  .page-about .about-path__intro {
    position: sticky;
    top: 2.5rem;
  }

  .page-about .about-assets__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.78fr);
    gap: clamp(1.75rem, 4vw, 3.5rem);
  }

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-about .about-step,
  .page-about .about-audience__card {
    transition: border-color 0.28s var(--ease), background-color 0.28s var(--ease);
  }

  .page-about .about-audience__card:hover {
    border-color: var(--line-strong);
  }
}
<<<END>>>