.page-about {
  background: var(--navy);
  color: var(--white);
  overflow: hidden;
}

.page-about .container {
  max-width: var(--container);
  padding-inline: var(--container-pad);
}

/* ---------- 面包屑 ---------- */
.page-about .about-breadcrumb {
  padding-top: 28px;
  padding-bottom: 0;
}

/* ---------- 区块通用 ---------- */
.page-about .about-section {
  padding-block: 72px;
}

.page-about .about-section__head {
  max-width: 820px;
}

.page-about .about-section__head h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1.25;
  color: var(--white);
}

.page-about .about-section__head > p {
  margin: 0;
  font-size: var(--text-md);
  line-height: 1.7;
  color: var(--gray);
}

.page-about .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-about .section-tag span {
  color: var(--neon);
  font-weight: 700;
}

.page-about .section-tag::after {
  content: "";
  display: inline-block;
  width: 42px;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), transparent);
}

/* ---------- Hero 品牌宣言 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 96px;
  background:
    radial-gradient(circle at 85% 10%, rgba(255, 107, 53, 0.14), transparent 42%),
    linear-gradient(135deg, rgba(57, 255, 20, 0.07), transparent 42%),
    var(--navy);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--navy-edge) 1px, transparent 1px),
    linear-gradient(90deg, var(--navy-edge) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.32;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: -6%;
  right: -4%;
  bottom: 12px;
  height: 42px;
  background: var(--orange);
  transform: skewY(-1.8deg);
  opacity: 0.9;
  z-index: 1;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 2;
}

.page-about .about-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-about .about-hero__kicker::before {
  content: "";
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.7);
}

.page-about .about-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-about .about-hero h1 span {
  display: block;
  color: var(--neon);
}

.page-about .about-hero__lead {
  max-width: 720px;
  margin: 24px 0 32px;
  font-size: var(--text-md);
  line-height: 1.7;
  color: var(--white);
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 品牌简介 ---------- */
.page-about .about-intro {
  padding-top: 16px;
  padding-bottom: 80px;
}

.page-about .about-intro__grid {
  display: grid;
  gap: 40px;
  align-items: center;
}

.page-about .about-intro__content h2 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1.25;
}

.page-about .about-intro__content p {
  margin: 0 0 16px;
  line-height: 1.75;
  color: var(--gray);
}

.page-about .about-intro__content strong {
  color: var(--white);
  font-weight: 600;
}

.page-about .about-intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-intro__media {
  position: relative;
  margin: 0;
  background: var(--navy-deep);
  border: 1px solid var(--navy-edge);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .about-intro__media::after {
  content: "";
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 60px rgba(10, 31, 68, 0.5);
  pointer-events: none;
}

.page-about .about-intro__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 服务能力数据墙 ---------- */
.page-about .about-capability {
  position: relative;
  background: var(--navy-deep);
  border-block: 1px solid var(--navy-edge);
}

.page-about .about-capability__strip {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 40px;
  padding: 40px 24px;
  background:
    linear-gradient(var(--navy-edge) 1px, transparent 1px),
    linear-gradient(90deg, var(--navy-edge) 1px, transparent 1px),
    var(--navy);
  background-size: 32px 32px;
  border: 1px solid var(--navy-edge);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .about-capability__strip::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon), var(--orange), transparent);
}

.page-about .about-capability__stat {
  position: relative;
  padding-left: 24px;
  border-left: 2px solid var(--navy-edge);
}

.page-about .about-capability__stat::before {
  content: "";
  position: absolute;
  top: 6px;
  left: -5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.7);
}

.page-about .about-capability__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--neon);
}

.page-about .about-capability__suffix {
  margin-left: 3px;
  font-family: var(--font-body);
  font-size: 0.5em;
  vertical-align: super;
  color: var(--orange);
}

.page-about .about-capability__stat h3 {
  margin: 14px 0 8px;
  font-size: var(--text-md);
  color: var(--white);
}

.page-about .about-capability__stat p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--gray);
}

.page-about .about-capability__media {
  margin: 48px 0 0;
  background: var(--navy);
  border: 1px solid var(--navy-edge);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .about-capability__media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-capability__media figcaption {
  padding: 14px 18px;
  border-top: 1px solid var(--navy-edge);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--gray);
}

/* ---------- 发展里程碑 ---------- */
.page-about .about-milestones__banner {
  margin: 40px 0 0;
  background: var(--navy-deep);
  border: 1px solid var(--navy-edge);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .about-milestones__banner img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-timeline {
  position: relative;
  margin-top: 48px;
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 18px;
  padding: 28px 0;
  border-bottom: 1px solid var(--navy-edge);
}

.page-about .about-timeline__item:first-child {
  border-top: 1px solid var(--navy-edge);
}

.page-about .about-timeline__item:not(:first-child)::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), transparent 70%);
  transform: skewX(-42deg);
  transform-origin: left;
}

.page-about .about-timeline__year {
  display: inline-block;
  height: fit-content;
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
  color: var(--neon);
  transform: skewX(-6deg);
}

.page-about .about-timeline__content h3 {
  margin: 0 0 8px;
  font-size: var(--text-md);
  color: var(--white);
}

.page-about .about-timeline__content p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 品牌价值观 ---------- */
.page-about .about-values__grid {
  display: grid;
  gap: 20px;
  margin-top: 40px;
}

.page-about .about-values__item {
  position: relative;
  padding: 32px 24px;
  background: var(--navy-deep);
  border: 1px solid var(--navy-edge);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.page-about .about-values__item::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--navy-edge) 1px, transparent 1px),
    linear-gradient(90deg, var(--navy-edge) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.2;
  pointer-events: none;
}

.page-about .about-values__item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(var(--neon), var(--orange));
  transform: scaleY(0.35);
  transform-origin: top;
  transition: transform var(--duration) var(--ease);
}

.page-about .about-values__item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.page-about .about-values__item:hover::after {
  transform: scaleY(1);
}

.page-about .about-values__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--orange);
}

.page-about .about-values__svg {
  width: 54px;
  height: 54px;
  margin: 18px 0 22px;
  color: var(--neon);
}

.page-about .about-values__svg svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-about .about-values__item h3 {
  margin: 0 0 12px;
  font-size: var(--text-md);
  color: var(--white);
}

.page-about .about-values__item p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 底部 CTA ---------- */
.page-about .about-cta {
  position: relative;
  padding: 88px 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 75% 40%, rgba(255, 107, 53, 0.12), transparent 50%),
    var(--navy);
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--navy-edge) 1px, transparent 1px),
    linear-gradient(90deg, var(--navy-edge) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.28;
  pointer-events: none;
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 32px;
  background: var(--orange);
  transform: skewY(-1.5deg);
  transform-origin: left;
  opacity: 0.85;
}

.page-about .about-cta__inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.page-about .about-cta h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1.25;
}

.page-about .about-cta p {
  margin: 0 0 32px;
  font-size: var(--text-md);
  line-height: 1.7;
  color: var(--gray);
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 100px 0 120px;
  }

  .page-about .about-intro {
    padding-top: 24px;
    padding-bottom: 104px;
  }

  .page-about .about-intro__grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .page-about .about-capability__strip {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding: 56px 40px;
  }

  .page-about .about-timeline {
    margin-top: 56px;
  }

  .page-about .about-timeline__item {
    grid-template-columns: 140px 1fr;
    gap: 40px;
    padding: 36px 0;
  }

  .page-about .about-timeline__year {
    font-size: 2.8rem;
  }

  .page-about .about-values__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .page-about .about-section {
    padding-block: 96px;
  }

  .page-about .about-values__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero {
    padding: 120px 0 140px;
  }
}