.page-about {
  --about-primary: #ff6f00;
  --about-accent: #ffd600;
  --about-surface: #1a1a2e;
  --about-bg-start: #0d0d0d;
  --about-bg-end: #1a1a2e;
  --about-glow: rgba(255, 111, 0, 0.35);
  --about-text-light: #ffffff;
  --about-text-muted: #b0bec5;
  --about-card-bg: #12121f;
  --about-border-glow: #ffd600;
  --font-heading: "Impact", "Arial Black", "Franklin Gothic Bold", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", "Microsoft YaHei", sans-serif;
  padding: 0;
  margin: 0;
  background: linear-gradient(145deg, var(--about-bg-start) 0%, var(--about-bg-end) 100%);
  color: var(--about-text-light);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
}

/* 面包屑 */
.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.6rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.2rem 1.5rem 0;
  font-size: 0.85rem;
  color: var(--about-text-muted);
}
.page-about .breadcrumb a {
  color: var(--about-primary);
  text-decoration: none;
  transition: color 0.2s;
}
.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--about-accent);
  text-decoration: underline;
}
.page-about .breadcrumb [aria-current="page"] {
  color: var(--about-text-light);
  font-weight: 600;
}

/* 数字高亮 */
.page-about .num-highlight {
  display: inline-block;
  color: var(--about-primary);
  font-weight: 700;
  text-shadow: 0 0 8px var(--about-glow), 0 0 16px var(--about-glow);
  letter-spacing: 0.04em;
}

/* 首屏英雄区 */
.page-about .hero-story {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
}
.page-about .hero-story__text {
  flex: 1 1 100%;
  text-align: center;
}
.page-about .hero-story__title {
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 12vw, 6rem);
  line-height: 1.05;
  margin: 0 0 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.1em;
  letter-spacing: 0.04em;
}
.page-about .hero-story__mark {
  display: inline-block;
  color: var(--about-text-light);
  text-shadow:
    0 0 12px var(--about-glow),
    0 0 30px var(--about-glow),
    0 0 60px rgba(255, 111, 0, 0.2);
  animation: heroPulse 3s ease-in-out infinite alternate;
}
@keyframes heroPulse {
  0% { text-shadow: 0 0 8px var(--about-glow), 0 0 20px var(--about-glow); }
  100% { text-shadow: 0 0 16px var(--about-glow), 0 0 40px var(--about-glow), 0 0 80px rgba(255, 111, 0, 0.25); }
}
.page-about .hero-story__subtitle {
  display: block;
  font-family: var(--font-body);
  font-size: clamp(1rem, 4vw, 1.6rem);
  font-weight: 400;
  color: var(--about-accent);
  text-shadow: 0 0 6px rgba(255, 214, 0, 0.3);
  letter-spacing: 0.3em;
  margin-top: 0.3rem;
  width: 100%;
}
.page-about .hero-story__desc {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--about-text-muted);
  max-width: 600px;
  margin: 1.2rem auto 0;
  line-height: 1.7;
}
.page-about .hero-story__visual {
  flex: 0 0 auto;
  width: 100%;
  max-width: 400px;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 0 20px rgba(255, 111, 0, 0.15), 0 0 40px rgba(255, 111, 0, 0.05);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.page-about .hero-story__visual:hover,
.page-about .hero-story__visual:focus-within {
  transform: scale(1.02);
  box-shadow: 0 0 30px rgba(255, 111, 0, 0.3), 0 0 60px rgba(255, 111, 0, 0.1);
}
.page-about .hero-story__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

/* 通用标题 */
.page-about .section-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 6vw, 3rem);
  line-height: 1.15;
  color: var(--about-text-light);
  margin: 0 0 1.8rem;
  letter-spacing: 0.02em;
  position: relative;
  text-shadow: 0 0 6px var(--about-glow);
}
.page-about .section-heading--alt {
  text-align: center;
  color: var(--about-accent);
  text-shadow: 0 0 10px rgba(255, 214, 0, 0.25);
}

/* 我们的故事 */
.page-about .origin-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
}
.page-about .origin-section__inner {
  display: flex;
  flex-direction: column;
}
.page-about .origin-section__body {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: flex-start;
}
.page-about .origin-section__prose {
  flex: 1 1 100%;
}
.page-about .origin-section__prose p {
  font-size: 1rem;
  color: var(--about-text-muted);
  margin: 0 0 1.2rem;
  max-width: 680px;
  line-height: 1.8;
}
.page-about .origin-section__link {
  display: inline-block;
  margin-top: 0.6rem;
}
.page-about .origin-section__emblem {
  flex: 0 0 auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--about-border-glow);
  box-shadow: 0 0 16px rgba(255, 214, 0, 0.2);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.page-about .origin-section__emblem:hover,
.page-about .origin-section__emblem:focus-within {
  transform: scale(1.06);
  box-shadow: 0 0 28px rgba(255, 214, 0, 0.35);
}
.page-about .origin-section__icon {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 发展理念 */
.page-about .vision-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
}
.page-about .vision-section__inner {
  display: flex;
  flex-direction: column;
}
.page-about .vision-section__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.8rem;
  margin-bottom: 2.5rem;
}
.page-about .vision-card {
  background: var(--about-card-bg);
  border: 1px solid rgba(255, 214, 0, 0.15);
  border-radius: 4px;
  padding: 1.8rem 1.5rem;
  position: relative;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.page-about .vision-card:hover,
.page-about .vision-card:focus-within {
  border-color: var(--about-border-glow);
  box-shadow: 0 0 20px rgba(255, 214, 0, 0.08), inset 0 0 20px rgba(255, 111, 0, 0.03);
  transform: translateY(-3px);
}
.page-about .vision-card__num {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  line-height: 1;
  color: var(--about-primary);
  text-shadow: 0 0 8px var(--about-glow);
  opacity: 0.7;
}
.page-about .vision-card__title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  line-height: 1.3;
  color: var(--about-text-light);
  margin: 0;
  letter-spacing: 0.02em;
}
.page-about .vision-card__text {
  font-size: 0.95rem;
  color: var(--about-text-muted);
  line-height: 1.7;
  margin: 0;
}
.page-about .vision-card__img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 3px;
  margin-top: 0.6rem;
  border: 1px solid rgba(255, 214, 0, 0.08);
  transition: transform 0.35s ease;
}
.page-about .vision-card__img:hover {
  transform: scale(1.02);
}
.page-about .vision-section__cta {
  text-align: center;
  font-size: 1rem;
  color: var(--about-text-muted);
  padding-top: 0.8rem;
  border-top: 1px solid rgba(255, 214, 0, 0.1);
}
.page-about .vision-section__cta a {
  color: var(--about-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s, text-shadow 0.2s;
}
.page-about .vision-section__cta a:hover,
.page-about .vision-section__cta a:focus-visible {
  color: var(--about-accent);
  text-shadow: 0 0 6px rgba(255, 214, 0, 0.2);
  text-decoration: underline;
}

/* 信任声明 */
.page-about .trust-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.8rem 1.5rem 3rem;
}
.page-about .trust-section__inner {
  background: rgba(255, 111, 0, 0.06);
  border-left: 4px solid var(--about-primary);
  padding: 1.2rem 1.8rem;
  border-radius: 0 4px 4px 0;
}
.page-about .trust-section__text {
  font-size: 0.95rem;
  color: var(--about-text-muted);
  margin: 0;
  line-height: 1.7;
}

/* 按钮通用 */
.page-about .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.8rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: 3px;
  cursor: default;
  transition: background 0.25s, border-color 0.25s, box-shadow 0.25s, transform 0.2s;
}
.page-about .btn-primary {
  background: var(--about-primary);
  color: #ffffff;
  border-color: var(--about-primary);
  box-shadow: 0 0 10px rgba(255, 111, 0, 0.2);
}
.page-about .btn-primary:hover,
.page-about .btn-primary:focus-visible {
  background: #ff8c22;
  border-color: var(--about-accent);
  box-shadow: 0 0 20px rgba(255, 111, 0, 0.4), 0 0 40px rgba(255, 111, 0, 0.1);
  transform: translateY(-2px);
}

/* ===== 桌面端媒体查询 ===== */
@media (min-width: 768px) {
  .page-about .hero-story {
    flex-direction: row;
    text-align: left;
    padding: 3.5rem 2.5rem 4rem;
    gap: 3rem;
  }
  .page-about .hero-story__text {
    text-align: left;
    flex: 1 1 55%;
  }
  .page-about .hero-story__title {
    justify-content: flex-start;
  }
  .page-about .hero-story__subtitle {
    text-align: left;
  }
  .page-about .hero-story__desc {
    margin-left: 0;
    margin-right: 0;
  }
  .page-about .hero-story__visual {
    flex: 0 0 40%;
    max-width: 400px;
  }

  .page-about .origin-section__body {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }
  .page-about .origin-section__prose {
    flex: 1 1 65%;
  }
  .page-about .origin-section__emblem {
    flex: 0 0 140px;
    width: 140px;
    height: 140px;
  }

  .page-about .vision-section__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
  .page-about .vision-card {
    padding: 2rem 1.8rem;
  }
  .page-about .vision-card__img {
    max-width: 100%;
  }

  .page-about .breadcrumb {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
  }
  .page-about .origin-section,
  .page-about .vision-section,
  .page-about .trust-section {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
  }
}

@media (min-width: 1200px) {
  .page-about .hero-story {
    padding: 4.5rem 3rem 5rem;
  }
  .page-about .hero-story__visual {
    max-width: 480px;
  }
  .page-about .origin-section,
  .page-about .vision-section,
  .page-about .trust-section {
    padding-left: 3rem;
    padding-right: 3rem;
  }
  .page-about .origin-section__emblem {
    flex: 0 0 160px;
    width: 160px;
    height: 160px;
  }
}
</<PAGE_CSS>>