.page-about {
  --about-marker-size: 3rem;
  --about-marker-line: 2px;
  --about-gap: 2rem;
  --about-card-min-height: 180px;
  --about-emph-scale: 1.05;
  display: block;
  width: 100%;
  background-color: var(--snow-white, #F8F9FA);
  color: var(--dark-blue, #0A2F44);
}

/* ===== 框景首屏 ===== */
.page-about .about-hero {
  position: relative;
  padding: 4rem 0 3rem;
  background: linear-gradient(135deg, var(--snow-white, #F8F9FA) 0%, rgba(30, 144, 255, 0.08) 100%);
  border-bottom: var(--about-marker-line) solid var(--light-gray, #E2E8F0);
}

.page-about .about-hero.box-frame {
  border: 2px solid var(--light-gray, #E2E8F0);
  border-top: none;
  border-radius: 0 0 1.25rem 1.25rem;
  position: relative;
  overflow: hidden;
}

.page-about .about-hero.box-frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4rem;
  height: 4rem;
  border-top: 3px solid var(--primary-blue, #1E90FF);
  border-left: 3px solid var(--primary-blue, #1E90FF);
  border-radius: 0.25rem 0 0 0;
  pointer-events: none;
}

.page-about .about-hero.box-frame::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 4rem;
  height: 4rem;
  border-top: 3px solid var(--accent-orange, #FF6B35);
  border-right: 3px solid var(--accent-orange, #FF6B35);
  border-radius: 0 0.25rem 0 0;
  pointer-events: none;
}

.page-about .about-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--dark-blue, #0A2F44);
  opacity: 0.7;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.page-about .about-breadcrumb a {
  color: var(--primary-blue, #1E90FF);
  text-decoration: none;
  transition: opacity 0.2s;
}

.page-about .about-breadcrumb a:hover,
.page-about .about-breadcrumb a:focus-visible {
  opacity: 0.7;
  outline: 2px solid var(--accent-orange, #FF6B35);
  outline-offset: 2px;
  border-radius: 2px;
}

.page-about .about-breadcrumb__sep {
  color: var(--accent-orange, #FF6B35);
  font-weight: 700;
}

.page-about .about-hero__title {
  font-family: var(--heading-font, "Inter", sans-serif);
  font-weight: var(--heading-weight, 700);
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  color: var(--dark-blue, #0A2F44);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.page-about .about-hero__subtitle {
  font-family: var(--heading-font, "Inter", sans-serif);
  font-weight: 400;
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--primary-blue, #1E90FF);
  margin: 0 0 0.75rem;
  line-height: 1.4;
}

.page-about .about-hero__desc {
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: var(--body-weight, 400);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--dark-blue, #0A2F44);
  max-width: 48rem;
  opacity: 0.85;
  margin: 0 0 1.25rem;
}

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

.page-about .about-hero__meta .badge {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  background-color: rgba(30, 144, 255, 0.12);
  color: var(--primary-blue, #1E90FF);
  border: 1px solid rgba(30, 144, 255, 0.25);
}

.page-about .about-hero__meta .badge--highlight {
  background-color: rgba(255, 107, 53, 0.12);
  color: var(--accent-orange, #FF6B35);
  border-color: rgba(255, 107, 53, 0.25);
}

.page-about .about-hero__meta .badge--new {
  background-color: rgba(40, 167, 69, 0.12);
  color: var(--success-green, #28A745);
  border-color: rgba(40, 167, 69, 0.25);
}

.page-about .about-hero__meta .badge--update {
  background-color: rgba(30, 144, 255, 0.12);
  color: var(--primary-blue, #1E90FF);
  border-color: rgba(30, 144, 255, 0.25);
}

/* ===== 品牌故事 ===== */
.page-about .about-story {
  padding: 3.5rem 0 2.5rem;
}

.page-about .section-label {
  font-family: var(--caption-font, "Inter", sans-serif);
  font-weight: var(--caption-weight, 300);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-orange, #FF6B35);
  margin: 0 0 2rem;
  position: relative;
  display: inline-block;
}

.page-about .section-label::after {
  content: "";
  display: block;
  width: 2.5rem;
  height: 2px;
  background-color: var(--accent-orange, #FF6B35);
  margin-top: 0.4rem;
}

.page-about .about-story__grid {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.page-about .story-item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.25rem;
  border-radius: 1rem;
  background-color: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(4px);
  transition: background-color 0.25s, box-shadow 0.25s;
  cursor: default;
}

.page-about .story-item:hover,
.page-about .story-item:focus-within {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 20px rgba(30, 144, 255, 0.08);
}

.page-about .story-item__marker {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.page-about .story-item__num {
  font-family: var(--data-font, "Courier New", monospace);
  font-weight: var(--data-weight, 400);
  font-size: var(--about-marker-size, 3rem);
  line-height: 1;
  color: var(--primary-blue, #1E90FF);
  letter-spacing: -0.04em;
  transition: color 0.3s;
}

.page-about .story-item[data-expand="focus"]:hover .story-item__num,
.page-about .story-item[data-expand="focus"]:focus-within .story-item__num {
  color: var(--accent-orange, #FF6B35);
}

.page-about .story-item__tag {
  font-family: var(--caption-font, "Inter", sans-serif);
  font-weight: 500;
  font-size: 0.8rem;
  color: var(--dark-blue, #0A2F44);
  opacity: 0.6;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-about .story-item__content {
  flex: 1;
  min-width: 0;
}

.page-about .story-item__title {
  font-family: var(--heading-font, "Inter", sans-serif);
  font-weight: 600;
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--dark-blue, #0A2F44);
  margin: 0 0 0.5rem;
  line-height: 1.3;
}

.page-about .story-item__text {
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: var(--body-weight, 400);
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--dark-blue, #0A2F44);
  opacity: 0.85;
  margin: 0 0 1rem;
}

.page-about .story-item__image-wrap {
  margin-top: 0.75rem;
  border-radius: 0.75rem;
  overflow: hidden;
}

.page-about .story-item__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 0.75rem;
}

.page-about .story-item__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.5rem;
  font-size: 0.85rem;
}

/* ===== 核心优势 ===== */
.page-about .about-advantages {
  padding: 2.5rem 0 3.5rem;
  background: linear-gradient(180deg, var(--snow-white, #F8F9FA) 0%, rgba(30, 144, 255, 0.04) 100%);
  position: relative;
}

.page-about .about-advantages__header {
  margin-bottom: 2rem;
}

.page-about .about-advantages__intro {
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: 400;
  font-size: 1rem;
  color: var(--dark-blue, #0A2F44);
  opacity: 0.7;
  margin: 0.5rem 0 0;
}

.page-about .about-advantages__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-about .advantage-card {
  background-color: var(--snow-white, #F8F9FA);
  border: 1px solid var(--light-gray, #E2E8F0);
  border-radius: 1rem;
  padding: 1.25rem;
  min-height: var(--about-card-min-height, 180px);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s, box-shadow 0.25s, border-color 0.25s;
  cursor: default;
}

.page-about .advantage-card:hover,
.page-about .advantage-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(30, 144, 255, 0.10);
  border-color: rgba(30, 144, 255, 0.25);
  outline: none;
}

.page-about .advantage-card:focus-visible {
  outline: 2px solid var(--accent-orange, #FF6B35);
  outline-offset: 2px;
}

.page-about .advantage-card--emph {
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.04), rgba(30, 144, 255, 0.04));
  border-color: rgba(255, 107, 53, 0.15);
}

.page-about .advantage-card--emph:hover,
.page-about .advantage-card--emph:focus-visible {
  border-color: rgba(255, 107, 53, 0.35);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.10);
}

.page-about .advantage-card__icon {
  margin-bottom: 0.75rem;
}

.page-about .advantage-card__number {
  font-family: var(--data-font, "Courier New", monospace);
  font-weight: 700;
  font-size: 1.8rem;
  color: var(--primary-blue, #1E90FF);
  line-height: 1;
  transition: color 0.3s, transform 0.3s;
  display: inline-block;
}

.page-about .advantage-card:hover .advantage-card__number,
.page-about .advantage-card:focus-visible .advantage-card__number {
  color: var(--accent-orange, #FF6B35);
  transform: scale(var(--about-emph-scale, 1.05));
}

.page-about .advantage-card__number--big {
  font-size: 2.2rem;
  color: var(--accent-orange, #FF6B35);
}

.page-about .advantage-card:hover .advantage-card__number--big,
.page-about .advantage-card:focus-visible .advantage-card__number--big {
  color: var(--primary-blue, #1E90FF);
  transform: scale(1.08);
}

.page-about .advantage-card__title {
  font-family: var(--heading-font, "Inter", sans-serif);
  font-weight: 600;
  font-size: 1rem;
  color: var(--dark-blue, #0A2F44);
  margin: 0 0 0.35rem;
  line-height: 1.3;
}

.page-about .advantage-card__text {
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: var(--body-weight, 400);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--dark-blue, #0A2F44);
  opacity: 0.75;
  margin: 0;
  flex: 1;
}

.page-about .about-advantages__media {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}

.page-about .about-advantages__phone {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 1.25rem;
  box-shadow: 0 8px 32px rgba(30, 144, 255, 0.12);
  object-fit: contain;
}

/* ===== 地域情怀 ===== */
.page-about .about-region {
  padding: 3rem 0 2.5rem;
  position: relative;
}

.page-about .about-region::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--primary-blue, #1E90FF), var(--accent-orange, #FF6B35), transparent);
  opacity: 0.25;
}

.page-about .about-region__layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.page-about .about-region__content {
  flex: 1;
}

.page-about .about-region__text {
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: var(--body-weight, 400);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--dark-blue, #0A2F44);
  opacity: 0.85;
  margin: 0 0 1rem;
}

.page-about .about-region__text:last-of-type {
  margin-bottom: 1.5rem;
}

.page-about .about-region__stats {
  display: flex;
  gap: 2rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.page-about .region-stat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-about .region-stat__num {
  font-family: var(--data-font, "Courier New", monospace);
  font-weight: 700;
  font-size: 2.2rem;
  line-height: 1;
  color: var(--primary-blue, #1E90FF);
  transition: color 0.3s;
}

.page-about .region-stat__num[data-highlight]:hover {
  color: var(--accent-orange, #FF6B35);
}

.page-about .region-stat__label {
  font-family: var(--caption-font, "Inter", sans-serif);
  font-weight: 300;
  font-size: 0.8rem;
  color: var(--dark-blue, #0A2F44);
  opacity: 0.6;
  margin-top: 0.25rem;
}

.page-about .about-region__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.page-about .about-region__icon {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 1rem;
  object-fit: contain;
  background: linear-gradient(135deg, rgba(30, 144, 255, 0.06), rgba(255, 107, 53, 0.06));
  padding: 0.75rem;
}

.page-about .about-region__caption {
  font-family: var(--caption-font, "Inter", sans-serif);
  font-weight: 300;
  font-size: 0.75rem;
  color: var(--dark-blue, #0A2F44);
  opacity: 0.5;
  text-align: center;
}

/* ===== 信任提示 ===== */
.page-about .about-trust {
  padding: 1.5rem 0 2.5rem;
}

.page-about .about-trust__text {
  font-family: var(--body-font, "Inter", sans-serif);
  font-weight: 300;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--dark-blue, #0A2F44);
  opacity: 0.6;
  text-align: center;
  max-width: 36rem;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  background-color: rgba(30, 144, 255, 0.04);
  border-radius: 1rem;
  border: 1px solid var(--light-gray, #E2E8F0);
}

/* ===== 响应式：平板 768px+ ===== */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 5rem 0 3.5rem;
  }

  .page-about .about-story {
    padding: 4rem 0 3rem;
  }

  .page-about .story-item {
    flex-direction: row;
    gap: 2rem;
    padding: 1.5rem 2rem;
  }

  .page-about .story-item__marker {
    flex-direction: column;
    align-items: flex-end;
    width: 5rem;
    min-width: 5rem;
    text-align: right;
    padding-top: 0.25rem;
  }

  .page-about .story-item__num {
    font-size: 3.5rem;
  }

  .page-about .about-advantages__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .advantage-card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    max-width: 50%;
    justify-self: center;
  }

  .page-about .about-advantages__media {
    margin-top: 2.5rem;
  }

  .page-about .about-region__layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 3rem;
  }

  .page-about .about-region__content {
    flex: 2;
  }

  .page-about .about-region__visual {
    flex: 1;
    align-items: center;
    padding-top: 0.5rem;
  }
}

/* ===== 响应式：桌面 1024px+ ===== */
@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 6rem 0 4rem;
  }

  .page-about .about-hero__title {
    font-size: 3.5rem;
  }

  .page-about .about-story {
    padding: 5rem 0 4rem;
  }

  .page-about .about-story__grid {
    max-width: 56rem;
  }

  .page-about .story-item {
    padding: 2rem 2.5rem;
    gap: 2.5rem;
  }

  .page-about .story-item__marker {
    width: 6rem;
    min-width: 6rem;
  }

  .page-about .story-item__num {
    font-size: 4rem;
  }

  .page-about .about-advantages__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .page-about .advantage-card:last-child:nth-child(odd) {
    grid-column: auto;
    max-width: none;
    justify-self: auto;
  }

  .page-about .about-advantages__intro {
    font-size: 1.1rem;
  }

  .page-about .about-region {
    padding: 4rem 0 3rem;
  }

  .page-about .about-region__text {
    font-size: 1rem;
  }

  .page-about .about-region__layout {
    gap: 4rem;
  }

  .page-about .region-stat__num {
    font-size: 2.5rem;
  }
}