.page-about {
  --about-gap: clamp(2.5rem, 6vw, 5rem);
  --about-dot: 14px;
}

/* ---- 面包屑定位 ---- */
.page-about .breadcrumbs {
  padding: 0.75rem 0;
}

/* ---- 品牌故事 ---- */
.about-story {
  position: relative;
  overflow: hidden;
  padding: var(--space-4) 0 var(--space-6);
  background-image:
    linear-gradient(rgba(26, 42, 74, 0.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 42, 74, 0.032) 1px, transparent 1px);
  background-size: 28px 28px;
}

.about-story::before {
  content: "10";
  position: absolute;
  right: -0.5rem;
  bottom: -2.5rem;
  font-family: var(--font-data);
  font-size: clamp(7rem, 16vw, 13rem);
  font-weight: 700;
  line-height: 1;
  color: rgba(26, 42, 74, 0.05);
  pointer-events: none;
  z-index: 0;
}

.about-story__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-5);
  align-items: center;
}

.about-story__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.5rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--color-red);
}

.about-story__kicker::before {
  content: "";
  width: 2rem;
  height: 2px;
  background: var(--color-gold);
}

.about-story h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 4.6vw, 3rem);
  line-height: 1.18;
  color: var(--color-deep-blue);
  margin: 0 0 var(--space-2);
}

.about-story__lead {
  font-family: var(--font-body);
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--color-deep-blue);
  margin: 0 0 var(--space-3);
  max-width: 60ch;
}

.about-story__body {
  display: grid;
  gap: var(--space-2);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.85;
  margin-bottom: var(--space-3);
}

.about-story__body p {
  margin: 0;
}

.about-story__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.about-story__figure {
  margin: 0;
}

.about-story__frame {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-deep-blue);
  padding: 8px;
  box-shadow: var(--shadow-warm);
  transform: rotate(1.25deg);
}

.about-story__frame::after {
  content: "";
  position: absolute;
  left: 10%;
  right: 10%;
  bottom: -10px;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-deep-blue) 0 2px,
    transparent 2px 10px
  );
  opacity: 0.35;
}

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

.about-story__figcaption {
  margin-top: var(--space-3);
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--color-deep-blue);
  text-align: right;
}

/* ---- 发展历程 ---- */
.about-timeline {
  padding: var(--about-gap) 0;
  background: var(--color-cream);
  border-top: 1px solid var(--color-sand);
}

.about-timeline .section-heading {
  margin-bottom: var(--space-3);
}

.about-timeline__wrap {
  position: relative;
  padding: var(--space-2) 0;
  margin-top: var(--space-2);
}

.about-timeline__wrap::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 10px;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--color-sand),
    var(--color-gold) 40%,
    var(--color-sand)
  );
}

.about-timeline__item {
  position: relative;
  padding: 0 0 var(--space-4) 3rem;
}

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

.about-timeline__dot {
  position: absolute;
  top: 0.5rem;
  left: 3px;
  width: var(--about-dot);
  height: var(--about-dot);
  border-radius: 50%;
  background: var(--color-gold);
  border: 3px solid var(--color-cream);
  box-shadow: 0 0 0 2px var(--color-deep-blue);
  z-index: 1;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.about-timeline__item:hover .about-timeline__dot {
  transform: scale(1.2);
  box-shadow: 0 0 0 2px var(--color-gold), 0 0 18px rgba(212, 175, 55, 0.4);
}

.about-timeline__year {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-red);
  margin-bottom: 0.5rem;
}

.about-timeline__card {
  background: #fff;
  border: 1px solid var(--color-sand);
  border-left: 3px solid var(--color-gold);
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-3);
  box-shadow: var(--shadow-warm);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.about-timeline__card:hover {
  transform: translateY(-2px);
  border-color: var(--color-gold);
  box-shadow: 0 6px 22px rgba(26, 42, 74, 0.12);
}

.about-timeline__card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  margin: 0 0 0.5rem;
}

.about-timeline__card p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--color-ink);
}

/* ---- 数字面板 ---- */
.about-numbers {
  position: relative;
  overflow: hidden;
  padding: var(--about-gap) 0;
  background: var(--color-deep-blue);
  color: var(--color-cream);
}

.about-numbers::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), rgba(245, 240, 230, 0.6), var(--color-gold));
}

.about-numbers::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(245, 240, 230, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 240, 230, 0.035) 1px, transparent 1px);
  background-size: 26px 26px;
  pointer-events: none;
}

.about-numbers .container {
  position: relative;
  z-index: 1;
}

.about-numbers .section-heading {
  border-bottom-color: rgba(245, 240, 230, 0.18);
}

.about-numbers .section-heading__title {
  color: var(--color-cream);
}

.about-numbers .section-heading__note {
  color: var(--color-gold);
}

.about-numbers__intro {
  font-family: var(--font-body);
  line-height: 1.8;
  color: rgba(245, 240, 230, 0.78);
  max-width: 58ch;
  margin: var(--space-2) 0 var(--space-3);
}

.about-numbers__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(245, 240, 230, 0.09);
  border: 1px solid rgba(245, 240, 230, 0.09);
}

.about-number {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 132px;
  padding: var(--space-3) var(--space-2);
  text-align: center;
  background: var(--color-deep-blue);
  transition: background 0.2s ease;
}

.about-number:hover {
  background: rgba(212, 175, 55, 0.08);
}

.about-number__value {
  font-family: var(--font-data);
  font-size: clamp(1.8rem, 4.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-gold);
}

.about-number__label {
  margin-top: 0.7rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.5;
  color: rgba(245, 240, 230, 0.76);
}

.about-numbers__foot {
  margin-top: var(--space-3);
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(245, 240, 230, 0.65);
}

/* ---- 资质与认证 ---- */
.about-cert {
  padding: var(--about-gap) 0;
  background: var(--color-cream);
  border-bottom: 1px solid var(--color-sand);
}

.about-cert__grid {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}

.about-cert__lead {
  margin: var(--space-3) 0 0;
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.85;
  max-width: 58ch;
}

.about-cert__list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.about-cert__item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--color-sand);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: var(--shadow-warm);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.about-cert__item:hover {
  transform: translateY(-2px);
  border-color: var(--color-gold);
  box-shadow: 0 8px 24px rgba(26, 42, 74, 0.1);
}

.about-cert__badge {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  font-family: var(--font-data);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-deep-blue);
  background: linear-gradient(135deg, var(--color-light-gold), var(--color-gold));
  border-radius: var(--radius);
}

.about-cert__info h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  margin: 0 0 0.375rem;
}

.about-cert__info p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--color-ink);
}

.about-cert__figure {
  margin: 0;
}

.about-cert__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--color-sand);
  box-shadow: var(--shadow-warm);
}

/* ---- 合作生态 ---- */
.about-partners {
  padding: var(--about-gap) 0;
  background: #fff;
  border-bottom: 1px solid var(--color-sand);
}

.about-partners__intro {
  max-width: 62ch;
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.85;
  margin: var(--space-3) 0 0;
}

.about-partners__grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.about-partner {
  position: relative;
  overflow: hidden;
  background: var(--color-cream);
  border: 1px solid var(--color-sand);
  border-top: 3px solid var(--color-deep-blue);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-3);
  box-shadow: var(--shadow-warm);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.about-partner:hover {
  transform: translateY(-4px);
  border-color: var(--color-gold);
  box-shadow: 0 10px 28px rgba(26, 42, 74, 0.13);
}

.about-partner__index {
  position: absolute;
  top: var(--space-2);
  right: var(--space-3);
  font-family: var(--font-data);
  font-size: 2.6rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(26, 42, 74, 0.1);
}

.about-partner h3 {
  position: relative;
  z-index: 1;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  margin: 0 0 0.7rem;
}

.about-partner p {
  position: relative;
  z-index: 1;
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--color-ink);
}

/* ---- 荣誉展示 ---- */
.about-awards {
  padding: var(--about-gap) 0;
  background: var(--color-cream);
}

.about-awards__grid {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-4);
}

.about-awards__cards {
  display: grid;
  gap: var(--space-4);
}

.about-award {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-gold);
  box-shadow:
    inset 0 0 0 4px #fff,
    inset 0 0 0 5px var(--color-sand),
    0 6px 18px rgba(43, 30, 14, 0.07);
  padding: var(--space-4);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.about-award:hover {
  transform: rotate(-1.2deg) scale(1.015);
  box-shadow:
    inset 0 0 0 4px #fff,
    inset 0 0 0 5px var(--color-gold),
    0 12px 32px rgba(212, 175, 55, 0.22);
}

.about-award__year {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #fff;
  background: var(--color-deep-blue);
  padding: 0.3rem 0.8rem;
  margin-bottom: 0.8rem;
}

.about-award h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  margin: 0 0 0.5rem;
}

.about-award p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--color-ink);
}

.about-awards__figure {
  margin: 0;
}

.about-awards__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-deep);
}

/* ---- 底部联系指引 ---- */
.about-cta {
  padding: var(--space-5) 0;
  background: var(--color-deep-blue);
}

.about-cta__box {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}

.about-cta__text h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--color-cream);
  margin: 0 0 0.5rem;
}

.about-cta__text p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.72);
}

.about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ---- 桌面端增强 ---- */
@media (min-width: 768px) {
  .about-story {
    padding-top: var(--space-5);
  }

  .about-story__grid {
    grid-template-columns: 7fr 5fr;
    gap: var(--space-5);
  }

  .about-story__body {
    grid-template-columns: 1fr 1fr;
    column-gap: 2.25rem;
  }

  .about-timeline__wrap::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .about-timeline__item {
    width: 50%;
    padding: 0 3.25rem var(--space-5) 0;
    text-align: right;
  }

  .about-timeline__item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 3.25rem;
    text-align: left;
  }

  .about-timeline__dot {
    top: 0.55rem;
    right: -7px;
    left: auto;
  }

  .about-timeline__item:nth-child(even) .about-timeline__dot {
    left: -7px;
    right: auto;
  }

  .about-numbers__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .about-number {
    min-height: 150px;
    padding: var(--space-3);
  }

  .about-cert__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
  }

  .about-cert__figure {
    order: -1;
  }

  .about-partners__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }

  .about-awards__grid {
    grid-template-columns: 3fr 2fr;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    transform: none !important;
  }
}