.page-about{
  --about-line: rgba(176, 196, 222, 0.16);
  --about-glow: rgba(244, 93, 34, 0.16);
  position: relative;
  overflow-x: clip;
  background-color: var(--primary-dark);
  background-image:
    linear-gradient(rgba(244, 93, 34, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 93, 34, 0.05) 1px, transparent 1px);
  background-size: 36px 36px;
}
.page-about img{
  max-width: 100%;
  height: auto;
}
.page-about h2{
  font-family: var(--display-font);
  font-size: clamp(1.75rem, 3.4vw, 2.75rem);
  line-height: 1.12;
  font-weight: 700;
  margin: 0.25rem 0 1rem;
  color: var(--text-primary);
}
.page-about p{
  line-height: 1.7;
}
.page-about .breadcrumb{
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1rem 1.25rem 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}
.page-about .breadcrumb a{
  color: var(--text-secondary);
  text-decoration: none;
}
.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible{
  color: var(--accent);
}
.page-about .breadcrumb-sep{
  color: rgba(176, 196, 222, 0.4);
}
.page-about .breadcrumb-current{
  color: var(--text-primary);
  font-weight: 500;
}
.page-about .section-title{
  display: inline-flex;
  margin-bottom: 0.5rem;
  color: var(--accent-gold);
}

/* Hero */
.page-about .about-hero{
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  padding: 2.5rem 1.25rem 3rem;
}
.page-about .about-hero__rail{
  display: none;
}
.page-about .about-hero__eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-gold);
}
.page-about .about-hero__eyebrow::before{
  content: "";
  width: 1.5rem;
  height: 2px;
  background: var(--accent);
  display: inline-block;
}
.page-about .about-hero h1{
  font-family: var(--display-font);
  font-weight: 900;
  font-size: clamp(2.25rem, 7vw, 4.25rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 0.75rem 0 1rem;
  color: var(--text-primary);
}
.page-about .about-hero__lead{
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 58ch;
  margin: 0 0 1.5rem;
}
.page-about .about-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.page-about .about-hero__stamp{
  width: 4.5rem;
  height: 4.5rem;
  margin-top: 1rem;
  margin-left: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent);
  border-radius: 50%;
  background: rgba(15, 33, 55, 0.85);
  transform: rotate(12deg);
  box-shadow: var(--shadow-sm);
}
.page-about .about-hero__stamp-year{
  font-family: var(--display-font);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
}
.page-about .about-hero__stamp-note{
  margin-top: 0.25rem;
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
}

/* 数据面板 */
.page-about .about-panel{
  padding: 0 1.25rem 2.5rem;
}
.page-about .about-panel__grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.page-about .about-panel__item{
  background: var(--surface);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1rem;
  box-shadow: var(--shadow-sm);
}
.page-about .about-panel__value{
  display: block;
  font-family: var(--display-font);
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
}
.page-about .about-panel__value small{
  font-size: 0.6em;
  color: var(--accent-gold);
  margin-left: 0.1em;
}
.page-about .about-panel__label{
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* 品牌使命 */
.page-about .about-mission{
  position: relative;
  padding: 3rem 1.25rem;
}
.page-about .about-mission__grid{
  display: grid;
  gap: 2rem;
  align-items: center;
}
.page-about .about-mission__copy p{
  color: var(--text-secondary);
  margin-bottom: 1rem;
}
.page-about .about-mission__figure{
  position: relative;
  margin: 0;
  z-index: 1;
}
.page-about .about-mission__figure::after{
  content: "";
  position: absolute;
  right: -0.75rem;
  bottom: -0.75rem;
  width: 100%;
  height: 100%;
  border: 1px solid rgba(244, 93, 34, 0.35);
  border-radius: var(--radius-lg);
  z-index: -1;
}
.page-about .about-mission__figure img{
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--about-line);
  box-shadow: var(--shadow-md);
}
.page-about .about-mission__figure figcaption{
  margin-top: 0.75rem;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--accent-gold);
}

/* 发展历程 */
.page-about .about-journey{
  position: relative;
  padding: 3rem 1.25rem 3.5rem;
  background: linear-gradient(180deg, transparent, rgba(15, 33, 55, 0.55), transparent);
}
.page-about .about-journey__bg{
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}
.page-about .about-journey__bg img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
  transform: scale(1.1);
}
.page-about .about-journey__head{
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin-bottom: 2.5rem;
}
.page-about .about-journey__head p{
  color: var(--text-secondary);
}
.page-about .about-journey__list{
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .about-journey__list::before{
  content: "";
  position: absolute;
  left: 1.75rem;
  top: 0.75rem;
  bottom: 0.75rem;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent 80%);
  opacity: 0.6;
  transform: translateX(-50%);
}
.page-about .about-journey__item{
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr);
  gap: 1rem;
  padding-bottom: 1.75rem;
}
.page-about .about-journey__year{
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--display-font);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}
.page-about .about-journey__card{
  background: var(--surface);
  border: 1px solid var(--about-line);
  border-radius: var(--radius-md);
  padding: 1rem 1.125rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.page-about .about-journey__card:hover,
.page-about .about-journey__card:focus-visible{
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-accent);
}
.page-about .about-journey__ver{
  display: inline-block;
  font-family: var(--display-font);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent-gold);
  border: 1px solid rgba(229, 168, 3, 0.4);
  border-radius: 999px;
  padding: 0.25rem 0.625rem;
  margin-bottom: 0.75rem;
}
.page-about .about-journey__card h3{
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
}
.page-about .about-journey__card p{
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin: 0;
}

/* 资质认证 */
.page-about .about-cert{
  padding: 3rem 1.25rem;
  display: grid;
  gap: 2rem;
}
.page-about .about-cert__content p{
  color: var(--text-secondary);
}
.page-about .about-cert__badges{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.page-about .about-cert__badge{
  border: 1px solid rgba(229, 168, 3, 0.45);
  background: linear-gradient(135deg, rgba(229, 168, 3, 0.12), transparent);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  text-align: center;
}
.page-about .about-cert__badge-num{
  display: block;
  font-family: var(--display-font);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--accent-gold);
}
.page-about .about-cert__badge-label{
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

/* 团队组织 */
.page-about .about-team{
  padding: 3rem 1.25rem;
  display: grid;
  gap: 2rem;
}
.page-about .about-team__visual{
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--about-line);
  box-shadow: var(--shadow-md);
}
.page-about .about-team__visual img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-about .about-team__content > p{
  color: var(--text-secondary);
}
.page-about .about-team__cards{
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}
.page-about .about-team__card{
  background: linear-gradient(135deg, var(--surface), var(--surface-light));
  border: 1px solid var(--about-line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 1.375rem 1.125rem;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.page-about .about-team__card:hover,
.page-about .about-team__card:focus-visible{
  transform: translateX(6px);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  outline: none;
}
.page-about .about-team__count{
  display: block;
  font-family: var(--display-font);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}
.page-about .about-team__card h3{
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0.25rem 0 0.375rem;
  color: var(--text-primary);
}
.page-about .about-team__card p{
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0 0 0.75rem;
}
.page-about .about-team__scope{
  display: block;
  width: fit-content;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--accent-gold);
  background: rgba(229, 168, 3, 0.1);
  border-radius: 999px;
  padding: 0.375rem 0.625rem;
}

/* 行业认可 */
.page-about .about-honor{
  padding: 3rem 1.25rem 3.5rem;
  display: grid;
  gap: 2rem;
  align-items: center;
}
.page-about .about-honor__ribbon{
  background: linear-gradient(110deg, var(--accent), #D8430F);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  clip-path: polygon(0 0, 88% 0, 100% 18%, 100% 100%, 8% 100%, 0 86%);
  box-shadow: var(--shadow-accent);
}
.page-about .about-honor__year{
  display: block;
  font-family: var(--display-font);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, 0.95);
}
.page-about .about-honor__title{
  display: block;
  margin-top: 0.5rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: #fff;
}
.page-about .about-honor__text p{
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

/* 延伸阅读 */
.page-about .about-refer{
  padding: 3rem 1.25rem 4rem;
}
.page-about .about-refer > p{
  color: var(--text-secondary);
}
.page-about .about-refer__links{
  display: grid;
  gap: 0.875rem;
  margin-top: 1.5rem;
}
.page-about .about-refer__links a{
  display: block;
  position: relative;
  background: var(--surface);
  border: 1px solid var(--about-line);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  color: var(--text-primary);
  font-weight: 500;
  text-decoration: none;
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}
.page-about .about-refer__links a::after{
  content: "→";
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-weight: 700;
}
.page-about .about-refer__links a:hover,
.page-about .about-refer__links a:focus-visible{
  border-color: var(--accent);
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
}

@media (min-width: 720px){
  .page-about .about-panel__grid{
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-mission__grid{
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2.5rem;
  }
  .page-about .about-cert{
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
  .page-about .about-team__cards{
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .about-refer__links{
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px){
  .page-about{
    background-size: 48px 48px;
  }
  .page-about .about-hero{
    grid-template-columns: auto minmax(0, 1fr);
    gap: 2rem;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 4.5rem 3rem 5rem;
  }
  .page-about .about-hero__rail{
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 3.5rem;
  }
  .page-about .about-hero__rail-num{
    font-family: var(--display-font);
    font-size: 1.25rem;
    color: var(--accent-gold);
  }
  .page-about .about-hero__rail-line{
    flex: 1;
    width: 2px;
    background: linear-gradient(var(--accent), transparent);
  }
  .page-about .about-hero__rail-text{
    writing-mode: vertical-rl;
    font-size: 0.6875rem;
    letter-spacing: 0.35em;
    color: var(--text-secondary);
  }
  .page-about .about-hero__content{
    max-width: 760px;
  }
  .page-about .about-hero__stamp{
    position: absolute;
    right: 3rem;
    bottom: 4rem;
    width: 6rem;
    height: 6rem;
    margin: 0;
  }
  .page-about .about-hero__stamp-year{
    font-size: 1.5rem;
  }
  .page-about .about-journey{
    display: grid;
    grid-template-columns: minmax(4rem, 1fr) minmax(0, 46rem) 1fr;
    column-gap: 2.5rem;
    padding: 5rem 3rem 5.5rem;
  }
  .page-about .about-journey::before{
    content: "";
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 6rem;
    background: linear-gradient(180deg, rgba(244, 93, 34, 0.25), rgba(229, 168, 3, 0.1));
    clip-path: polygon(0 0, 100% 12%, 88% 100%, 0 88%);
    z-index: 0;
  }
  .page-about .about-journey__head,
  .page-about .about-journey__list{
    grid-column: 2;
  }
  .page-about .about-journey__head{
    margin-bottom: 3rem;
  }
  .page-about .about-journey__item{
    grid-template-columns: 4rem minmax(0, 1fr);
    gap: 1.25rem;
  }
  .page-about .about-journey__year{
    width: 4rem;
    height: 4rem;
    font-size: 0.875rem;
  }
  .page-about .about-journey__list::before{
    left: 2rem;
  }
  .page-about .about-team{
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 5rem 3rem;
  }
  .page-about .about-team__content{
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 2rem;
    align-items: end;
  }
  .page-about .about-team__cards{
    grid-column: 1 / -1;
  }
  .page-about .about-honor{
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 4rem 3rem 5rem;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 3rem;
  }
  .page-about .about-refer{
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 3rem 3rem 5rem;
  }
}