.page-about {
  --about-gap: clamp(20px, 4vw, 36px);
  --about-card-pad: clamp(20px, 3.4vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(78px, 11vw, 132px) 0 clamp(40px, 7vw, 80px);
  background:
    radial-gradient(130% 120% at 88% 4%, rgba(216, 166, 75, 0.28), rgba(216, 166, 75, 0) 58%),
    linear-gradient(158deg, var(--ink-soft) 0%, var(--ink) 38%, var(--ink-deep) 100%);
  color: var(--text-on-ink);
  border-bottom: 3px solid var(--gold);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    rgba(240, 206, 132, 0.09) 0 2px,
    rgba(240, 206, 132, 0) 2px 16px
  );
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 5vw, 48px);
}

.page-about .about-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 13px;
  color: rgba(232, 223, 201, 0.7);
}

.page-about .about-crumbs a {
  color: var(--gold-light);
  text-decoration: none;
}

.page-about .about-crumbs a:hover {
  text-decoration: underline;
}

.page-about .about-crumbs span[aria-current="page"] {
  color: rgba(232, 223, 201, 0.92);
}

.page-about .about-kicker {
  display: inline-block;
  margin: 0 0 16px;
  padding: 6px 14px;
  border: 1px solid rgba(216, 166, 75, 0.6);
  border-radius: 999px;
  background: rgba(216, 166, 75, 0.1);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-light);
}

.page-about .about-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(30px, 7.4vw, 56px);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-about .about-hero__lead {
  margin: 0 0 26px;
  max-width: 48ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(232, 223, 201, 0.88);
}

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

.page-about .about-hero__figure {
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid rgba(216, 166, 75, 0.55);
  box-shadow: var(--shadow-2);
}

/* ---------- 通用图表与正文 ---------- */
.page-about .cs-figure {
  margin: 0;
}

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

.page-about .cs-section {
  padding: clamp(48px, 8vw, 92px) 0;
}

.page-about .about-no {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: 0.16em;
  font-weight: 600;
  color: var(--gold-deep);
}

.page-about .about-no .cs-num {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: var(--red);
  color: var(--cream);
  font-size: 13px;
  font-weight: 700;
}

.page-about .about-no--onink {
  color: var(--gold-light);
}

.page-about .about-no--onink .cs-num {
  background: var(--gold);
  color: var(--ink-deep);
}

.page-about .about-head {
  max-width: 64ch;
}

.page-about .about-head .cs-lead {
  margin-top: 12px;
  color: var(--text-soft);
}

/* ---------- 我们是谁 ---------- */
.page-about .about-story__inner {
  display: grid;
  gap: clamp(24px, 5vw, 44px);
}

.page-about .about-story__figure {
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--line-gold);
}

.page-about .about-story__body .cs-prose {
  margin: 0 0 16px;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-about .about-facts {
  list-style: none;
  margin: var(--about-gap) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-facts li {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 14px 18px;
  border-radius: var(--radius-s);
  background: var(--cream-2);
  border-left: 3px solid var(--gold);
}

.page-about .about-facts strong {
  color: var(--red-deep);
  font-size: 15px;
  white-space: nowrap;
}

.page-about .about-facts strong.cs-num {
  font-family: var(--font-mono);
  font-size: 18px;
}

.page-about .about-facts span {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-soft);
}

/* ---------- 为谁服务 ---------- */
.page-about .about-audience__flow {
  display: grid;
  gap: 16px;
  margin-top: var(--about-gap);
}

.page-about .about-aud-card {
  position: relative;
  padding: var(--about-card-pad);
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}

.page-about .about-aud-card h3 {
  margin-top: 0;
  color: var(--ink);
}

.page-about .about-aud-card p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-about .about-aud-card .cs-num {
  color: var(--red-deep);
  font-weight: 700;
}

.page-about .about-aud-card--accent {
  background: linear-gradient(140deg, var(--cream-2), var(--cream));
  border-color: var(--line-gold);
}

/* ---------- 能为你做什么 ---------- */
.page-about .about-serve__inner {
  display: grid;
  gap: clamp(24px, 5vw, 44px);
}

.page-about .about-serve__figure {
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--line-gold);
}

.page-about .about-list {
  list-style: none;
  margin: var(--about-gap) 0 0;
  padding: 0;
}

.page-about .about-list li {
  position: relative;
  padding: 20px 0 20px 34px;
  border-top: 1px dashed var(--line);
}

.page-about .about-list li:last-child {
  border-bottom: 1px dashed var(--line);
}

.page-about .about-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 26px;
  width: 11px;
  height: 11px;
  background: var(--gold);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-about .about-list h3 {
  margin: 0;
  color: var(--ink);
}

.page-about .about-list p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 做事的准绳 ---------- */
.page-about .about-rules__card {
  padding: clamp(26px, 5vw, 48px);
  border-radius: var(--radius-l);
}

.page-about .about-rules__title {
  color: var(--cream);
}

.page-about .about-rules__grid {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

.page-about .about-rules__item {
  padding-top: 18px;
  border-top: 1px solid rgba(216, 166, 75, 0.45);
}

.page-about .about-rules__item h3 {
  margin: 0;
  color: var(--gold-light);
}

.page-about .about-rules__item p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(232, 223, 201, 0.82);
}

/* ---------- 联系我们 ---------- */
.page-about .about-reach__inner {
  display: grid;
  gap: clamp(24px, 5vw, 44px);
}

.page-about .about-reach__copy .cs-prose {
  margin: 0 0 24px;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-about .about-reach__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-reach__meta {
  margin: 0;
  display: grid;
  gap: 16px;
  padding: var(--about-card-pad);
  border-radius: var(--radius-m);
  background: var(--cream-2);
  border: 1px solid var(--line-gold);
}

.page-about .about-reach__meta dt {
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.page-about .about-reach__meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}

.page-about .about-reach__meta dd.cs-num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--red-deep);
}

/* ---------- 响应式 ---------- */
@media (min-width: 780px) {
  .page-about .about-audience__flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-aud-card--wide {
    grid-column: span 2;
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 24px;
    align-items: start;
  }

  .page-about .about-aud-card--wide p {
    margin-top: 0;
  }

  .page-about .about-rules__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-about .about-reach__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
  }

  .page-about .about-story__inner {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-about .about-serve__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-about .about-serve__figure {
    position: sticky;
    top: 104px;
  }

  .page-about .about-reach__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-serve__figure {
    position: static;
  }
}