.page-about {
  --about-rule: rgba(176, 138, 62, 0.26);
  --about-rule-soft: rgba(201, 194, 180, 0.45);
  --about-ink-soft: rgba(28, 35, 33, 0.72);
  --about-ivory-soft: rgba(246, 241, 231, 0.78);
  font-family: var(--font-body);
  color: var(--graphite);
  background: var(--ivory);
}

.page-about .about-h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.6rem, 4.4vw, 2.6rem);
  line-height: 1.24;
  letter-spacing: -0.01em;
  margin: 0.5rem 0 0;
  color: var(--canal);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 82% 12%, rgba(217, 184, 108, 0.22), transparent 58%),
    linear-gradient(160deg, var(--canal-deep) 0%, var(--canal) 58%, #0d4a4a 100%);
  color: var(--ivory);
  padding-bottom: 4.5rem;
}

.page-about .about-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-about .about-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  opacity: 0.34;
  filter: saturate(0.82);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(6, 40, 42, 0.55) 0%, rgba(6, 40, 42, 0.28) 42%, rgba(6, 40, 42, 0.88) 100%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 2;
  padding-top: 2rem;
  padding-bottom: 1rem;
}

.page-about .about-hero .breadcrumb__link,
.page-about .about-hero .breadcrumb__item {
  color: var(--about-ivory-soft);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.page-about .about-hero .breadcrumb__link:hover,
.page-about .about-hero .breadcrumb__link:focus-visible {
  color: var(--gold-light);
}

.page-about .about-hero__eyebrow {
  color: var(--gold-light);
  margin-top: 2.2rem;
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.1rem, 7.2vw, 4.6rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0.9rem 0 1.1rem;
  max-width: 18ch;
}

.page-about .about-hero__lede {
  max-width: var(--prose-max);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--about-ivory-soft);
  margin: 0;
}

.page-about .about-toc {
  list-style: none;
  margin: 2.4rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.25rem 1rem;
  border-top: 1px solid var(--about-rule);
  padding-top: 1rem;
}

.page-about .about-toc__link {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.55rem 0.2rem;
  text-decoration: none;
  color: var(--ivory);
  border-bottom: 1px solid transparent;
  transition: color 150ms var(--ease), border-color 150ms var(--ease);
}

.page-about .about-toc__num {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--gold-light);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.page-about .about-toc__label {
  font-size: 0.88rem;
  letter-spacing: 0.05em;
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus-visible {
  color: var(--gold-light);
  border-bottom-color: var(--gold-light);
}

.page-about .about-hero__arch {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  width: 100%;
  height: 70px;
  z-index: 2;
  color: var(--gold);
  opacity: 0.55;
  pointer-events: none;
}

/* ---------- 通用章节头 ---------- */
.page-about .about-head {
  max-width: var(--prose-max);
  margin-bottom: 2rem;
}

.page-about .about-head__lede {
  margin: 0.9rem 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--about-ink-soft);
}

.page-about .about-head--dark .about-h2 {
  color: var(--ivory);
}

.page-about .about-head--dark .eyebrow {
  color: var(--gold-light);
}

.page-about .about-head--dark .about-head__lede {
  color: var(--about-ivory-soft);
}

/* ---------- 品牌起点 ---------- */
.page-about .about-origin {
  background: var(--ivory);
}

.page-about .about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.4rem;
}

.page-about .about-origin__prose p {
  margin: 0 0 1.15rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--graphite);
}

.page-about .about-origin__prose p:first-child::first-letter {
  font-family: var(--font-display);
  font-size: 2.6rem;
  line-height: 1;
  color: var(--gold);
  padding-right: 0.12em;
  float: left;
  margin-top: 0.15em;
}

.page-about .about-facts {
  background: linear-gradient(170deg, #ffffff 0%, var(--water) 100%);
  border: 1px solid var(--about-rule);
  border-radius: var(--radius-l);
  padding: 1.5rem 1.4rem;
  box-shadow: 0 14px 34px rgba(11, 59, 60, 0.07);
}

.page-about .about-facts__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
}

.page-about .about-facts__item {
  display: grid;
  gap: 0.2rem;
  padding-bottom: 1.05rem;
  border-bottom: 1px dashed var(--about-rule-soft);
}

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

.page-about .about-facts__num {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 600;
  line-height: 1;
  color: var(--canal);
  font-variant-numeric: tabular-nums;
}

.page-about .about-facts__text {
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--about-ink-soft);
}

/* ---------- 四条原则 ---------- */
.page-about .about-principles {
  background: var(--water);
  overflow: hidden;
}

.page-about .about-principles__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}

.page-about .about-principles__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.page-about .about-principle {
  position: relative;
  background: var(--ivory);
  border: 1px solid var(--about-rule-soft);
  border-radius: var(--radius-m) var(--radius-l) var(--radius-m) var(--radius-m);
  padding: 1.4rem 1.3rem 1.3rem;
  transition: transform 150ms var(--ease), border-color 150ms var(--ease), box-shadow 150ms var(--ease);
}

.page-about .about-principle:hover,
.page-about .about-principle:focus-within {
  transform: translateY(-2px);
  border-color: var(--gold-light);
  box-shadow: 0 16px 30px rgba(11, 59, 60, 0.1);
}

.page-about .about-principle__num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.4rem;
  line-height: 1;
  color: var(--gold);
  opacity: 0.5;
  font-variant-numeric: tabular-nums;
}

.page-about .about-principle__title {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 0.5rem 0 0.6rem;
  color: var(--canal);
}

.page-about .about-principle__text {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--about-ink-soft);
}

.page-about .about-principle__link {
  display: inline-block;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  color: var(--canal);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 0.15rem;
  transition: color 150ms var(--ease), border-color 150ms var(--ease);
}

.page-about .about-principle__link:hover,
.page-about .about-principle__link:focus-visible {
  color: var(--coral);
  border-color: var(--coral);
}

.page-about .about-principles__figure {
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--canal);
  border: 1px solid var(--about-rule);
}

.page-about .about-principles__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 4;
}

.page-about .about-principles__caption {
  padding: 0.8rem 1rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--gold-light);
  background: var(--canal);
}

/* ---------- 应用场景 ---------- */
.page-about .about-scenarios {
  background: var(--ivory);
}

.page-about .about-scenarios__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.page-about .about-scenario {
  position: relative;
  padding: 1.4rem 1.2rem 1.3rem 1.5rem;
  background: #fffdf7;
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-m) var(--radius-m) 0;
  transition: border-color 150ms var(--ease), background-color 150ms var(--ease);
}

.page-about .about-scenario:nth-child(even) {
  background: var(--water);
  border-left-color: var(--coral);
}

.page-about .about-scenario:hover,
.page-about .about-scenario:focus-within {
  border-left-color: var(--canal);
}

.page-about .about-scenario__tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--canal);
  background: rgba(176, 138, 62, 0.16);
  border-radius: 999px;
  padding: 0.22rem 0.7rem;
}

.page-about .about-scenario__title {
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 600;
  line-height: 1.45;
  margin: 0.7rem 0 0.55rem;
  color: var(--canal);
}

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

.page-about .about-scenario__link {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--coral);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 105, 91, 0.45);
  padding-bottom: 0.1rem;
}

.page-about .about-scenario__link:hover,
.page-about .about-scenario__link:focus-visible {
  color: var(--canal);
  border-color: var(--gold);
}

/* ---------- 发展历程 ---------- */
.page-about .about-timeline {
  background:
    radial-gradient(110% 70% at 18% 0%, rgba(217, 184, 108, 0.18), transparent 62%),
    linear-gradient(180deg, var(--canal) 0%, var(--canal-deep) 100%);
  color: var(--ivory);
}

.page-about .about-timeline__figure {
  margin: 0 0 2rem;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--about-rule);
}

.page-about .about-timeline__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 2 / 1;
  opacity: 0.92;
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.6rem;
  position: relative;
  display: grid;
  gap: 1.4rem;
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 0.36rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: linear-gradient(180deg, var(--gold-light), rgba(217, 184, 108, 0.12));
}

.page-about .about-timeline__item {
  position: relative;
  outline: none;
}

.page-about .about-timeline__dot {
  position: absolute;
  left: -1.6rem;
  top: 0.42rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold-light);
  transform: translateX(0.03rem);
  box-shadow: 0 0 0 4px rgba(217, 184, 108, 0.16);
}

.page-about .about-timeline__phase {
  margin: 0 0 0.2rem;
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--gold-light);
}

.page-about .about-timeline__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
  color: var(--ivory);
}

.page-about .about-timeline__more {
  margin: 0.45rem 0 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--about-ivory-soft);
  max-height: 12rem;
  opacity: 1;
  transition: max-height 220ms var(--ease), opacity 220ms var(--ease);
}

/* ---------- 品牌问答 ---------- */
.page-about .about-faq {
  background: var(--ivory);
}

.page-about .about-faq__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}

.page-about .about-faq__lede {
  margin: 0.9rem 0 1.4rem;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--about-ink-soft);
  max-width: 46ch;
}

.page-about .about-faq__list {
  border-top: 1px solid var(--about-rule-soft);
}

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

.page-about .about-faq__list .accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: left;
  padding: 1.05rem 0.2rem;
  font-size: 0.96rem;
  line-height: 1.6;
  color: var(--canal);
}

.page-about .about-faq__list .accordion__panel-inner p {
  margin: 0;
  padding: 0 0.2rem 1.15rem;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--about-ink-soft);
  max-width: 62ch;
}

/* ---------- 尾段引导 ---------- */
.page-about .about-next {
  background: linear-gradient(120deg, var(--water) 0%, var(--ivory) 58%, #f1e9da 100%);
  border-top: 1px solid var(--about-rule-soft);
}

.page-about .about-next__inner {
  max-width: 720px;
}

.page-about .about-next__title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.6vw, 2rem);
  font-weight: 600;
  color: var(--canal);
  margin: 0 0 0.7rem;
}

.page-about .about-next__text {
  margin: 0 0 1.5rem;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--about-ink-soft);
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 平板及桌面 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero__inner {
    padding-top: 3rem;
    padding-bottom: 1.5rem;
  }

  .page-about .about-toc {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-about .about-scenarios__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.15rem;
  }

  .page-about .about-principles__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem 1.25rem;
  }

  .page-about .about-principle:nth-child(even) {
    transform: translateY(1.6rem);
  }

  .page-about .about-principles__grid {
    padding-bottom: 1.6rem;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero {
    padding-bottom: 5.5rem;
  }

  .page-about .about-hero__arch {
    height: 110px;
  }

  .page-about .about-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    gap: 3.4rem;
    align-items: start;
  }

  .page-about .about-facts {
    margin-top: 1.6rem;
  }

  .page-about .about-principles__layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 2.6rem;
    align-items: start;
  }

  .page-about .about-principles__figure {
    position: sticky;
    top: 6.5rem;
  }

  .page-about .about-timeline__figure {
    margin-bottom: 2.6rem;
  }

  .page-about .about-timeline__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem 2.6rem;
    padding-left: 0;
    padding-top: 1.2rem;
  }

  .page-about .about-timeline__list::before {
    left: 0;
    right: 0;
    top: 0;
    bottom: auto;
    width: auto;
    height: 1px;
    background: linear-gradient(90deg, var(--gold-light), rgba(217, 184, 108, 0.12));
  }

  .page-about .about-timeline__dot {
    left: 0;
    top: -1.2rem;
  }

  .page-about .about-timeline__more {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
  }

  .page-about .about-timeline__item:hover .about-timeline__more,
  .page-about .about-timeline__item:focus-within .about-timeline__more,
  .page-about .about-timeline__item:focus .about-timeline__more {
    max-height: 12rem;
    opacity: 1;
  }

  .page-about .about-faq__inner {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 3.4rem;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__more,
  .page-about .about-principle,
  .page-about .about-toc__link {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>