.page-about {
  --pane-before: #E4D9C7;
  --pane-after: #FBF5EB;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .hero-about__split {
  margin-top: 22px;
}

.page-about .hero-about__title {
  max-width: 13em;
  color: var(--sand);
}

.page-about .hero-about__lede {
  margin-top: 20px;
  max-width: 32em;
  color: rgba(243, 233, 218, 0.8);
}

.page-about .hero-about__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 24px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.page-about .hero-about__stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-about .hero-about__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--gold-light);
}

.page-about .hero-about__label {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-about .hero-hall {
  position: relative;
  min-height: clamp(240px, 36vw, 420px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 26%, rgba(232, 206, 122, 0.26), rgba(201, 162, 39, 0.06) 48%, transparent 72%),
    linear-gradient(165deg, #2B221C 0%, #14100E 78%);
  overflow: hidden;
}

.page-about .hero-hall__lantern {
  position: absolute;
  left: 50%;
  top: 30%;
  width: clamp(96px, 18vw, 156px);
  aspect-ratio: 5 / 6;
  transform: translate(-50%, -50%);
  border-radius: 50% 50% 46% 46% / 42% 42% 58% 58%;
  background: radial-gradient(circle at 50% 32%, #F7E7B2, #E8CE7A 38%, #C9A227 72%, #8C6B14 100%);
  box-shadow: 0 0 80px 24px rgba(201, 162, 39, 0.22), 0 0 160px 62px rgba(201, 162, 39, 0.1);
  opacity: 0.92;
}

.page-about .hero-hall__lattice {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(to right, rgba(232, 206, 122, 0.15) 0 1px, transparent 1px 28px);
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 28%, #000 72%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 28%, #000 72%, transparent);
}

/* ---------- 时间轴 ---------- */
.page-about .timeline-intro {
  margin-top: 14px;
}

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

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--line) 5%, var(--line) 92%, transparent);
}

.page-about .stage {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: 0 0 50px 30px;
}

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

.page-about .stage__side {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.page-about .stage__dot {
  position: absolute;
  left: -35px;
  top: 5px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--muted);
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.page-about .stage.is-in .stage__dot {
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(201, 162, 39, 0.16);
}

.page-about .stage__index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
}

.page-about .stage__name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text);
}

.page-about .stage__body {
  min-width: 0;
}

.page-about .stage__title {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-about .stage__text p,
.page-about .stage__lead {
  margin: 0 0 14px;
  font-size: 17px;
  line-height: 1.9;
  color: var(--text);
  max-width: 34em;
}

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

.page-about .stage__lead {
  margin-bottom: 24px;
}

.page-about .stage__link-line {
  margin: 18px 0 0 !important;
  font-size: 16px !important;
}

.page-about .stage__link-line a {
  color: var(--gold-deep);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about .stage__link-line a:hover {
  color: var(--wine);
}

.page-about .stage__tags {
  margin-top: 18px;
}

.page-about .stage__follow {
  margin: 26px 0 18px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
  max-width: 34em;
}

/* ---------- 阶段内图文 ---------- */
.page-about .stage__body--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

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

.page-about .media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  box-shadow: var(--sh-1);
}

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

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

.page-about .figure--wide {
  aspect-ratio: 3 / 2;
}

.page-about .figure--landscape {
  aspect-ratio: 14 / 9;
}

/* ---------- 换装对比 ---------- */
.page-about .compare {
  display: grid;
  gap: 18px;
}

.page-about .compare__row {
  display: grid;
  gap: 12px;
  padding: 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: var(--sand-2);
}

.page-about .compare__label {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--wine);
}

.page-about .compare__panes {
  display: grid;
  gap: 12px;
}

.page-about .compare__pane {
  padding: 16px 18px;
  border-radius: var(--r-sm);
}

.page-about .compare__pane p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.85;
}

.page-about .compare__pane--before {
  background: var(--pane-before);
  color: #5A5148;
}

.page-about .compare__pane--after {
  background: var(--pane-after);
  border: 1px solid var(--line);
  color: var(--text);
}

.page-about .compare__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-about .compare__pane--before .compare__tag {
  color: #8A7F72;
}

.page-about .compare__pane--after .compare__tag {
  color: var(--gold-deep);
}

.page-about .relaunch-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 26px;
  margin-top: 26px;
  padding: 22px 26px;
  border-radius: var(--r-md);
  border-left: 3px solid var(--gold);
  background: var(--ink-2);
  box-shadow: var(--sh-1);
}

.page-about .relaunch-note__num {
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--gold-light);
}

.page-about .relaunch-note p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--sand);
}

/* ---------- 反馈档案卡 ---------- */
.page-about .voice-list {
  display: grid;
  gap: 18px;
}

.page-about .voice-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 24px 22px;
}

.page-about .voice-card__quote {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.7;
  color: var(--gold-light);
}

.page-about .voice-card__fix {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 后续方向 ---------- */
.page-about .next-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-about .next-item {
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-about .next-item__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
}

.page-about .next-item h4 {
  margin: 10px 0 8px;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--text);
}

.page-about .next-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

/* ---------- 收尾 ---------- */
.page-about .cta-panel {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-about .cta-panel__title {
  color: var(--sand);
  margin-bottom: 14px;
}

.page-about .cta-panel__text {
  margin: 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 34em;
}

.page-about .cta-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- 桌面与平板 ---------- */
@media (min-width: 768px) {
  .page-about .hero-about__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .stage__body--split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 32px;
    align-items: start;
  }

  .page-about .compare__row {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }

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

  .page-about .voice-card {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 20px;
  }

  .page-about .next-list {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 26px;
  }
}

@media (min-width: 1024px) {
  .page-about .timeline::before {
    left: calc((100% - 48px) * 0.25);
  }

  .page-about .stage {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: 48px;
    padding: 0 0 84px 0;
    align-items: start;
  }

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

  .page-about .stage__side {
    flex-direction: column;
    align-items: flex-end;
    gap: 18px;
    padding-top: 4px;
    text-align: right;
  }

  .page-about .stage__dot {
    left: auto;
    right: -5px;
    top: 6px;
  }

  .page-about .stage__name {
    writing-mode: vertical-rl;
    text-orientation: upright;
    font-size: 24px;
    letter-spacing: 0.24em;
  }

  .page-about .cta-panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    gap: 48px;
  }

  .page-about .cta-panel__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1200px) {
  .page-about .stage {
    padding-bottom: 96px;
  }
}

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