.page-about {
  --about-slice: 48px;
  --about-gap: 24px;
  background-color: var(--night);
  color: var(--moon);
}

.page-about .breadcrumb {
  padding: 24px 0 4px;
}

.page-about .section-head {
  margin-bottom: 36px;
}

.page-about .section-head--dark .section-index {
  color: var(--amber);
}

.page-about .section-head--dark h2 {
  color: var(--moon);
}

/* 首屏区 */
.page-about .about-hero {
  position: relative;
  background: linear-gradient(140deg, var(--night) 0%, var(--night-2) 72%, #173a55 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-slice)), 0 100%);
  padding: 32px 0 calc(64px + var(--about-slice));
}

.page-about .about-hero__inner {
  display: grid;
  gap: 32px;
}

.page-about .about-hero__kicker {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 16px;
  padding: 6px 14px;
  border: 1px solid rgba(255, 179, 0, 0.35);
  background: rgba(255, 179, 0, 0.08);
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-about .about-hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.12;
  margin: 0 0 20px;
  max-width: 680px;
  letter-spacing: -0.02em;
}

.page-about .about-hero h1::after {
  content: "";
  display: block;
  width: 104px;
  height: 6px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--amber), var(--orange));
  clip-path: polygon(0 0, 100% 0, 80% 100%, 0 100%);
}

.page-about .about-hero__lede {
  font-size: 17px;
  line-height: 1.75;
  color: var(--moon);
  opacity: 0.9;
  max-width: 620px;
  margin-bottom: 28px;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero__media {
  position: relative;
  margin: 0;
}

.page-about .about-hero__media::before {
  content: "";
  position: absolute;
  top: -14px;
  right: -8px;
  width: 64px;
  height: 64px;
  border: 2px solid rgba(255, 179, 0, 0.55);
  border-radius: 50%;
  box-shadow: 0 0 0 12px rgba(255, 179, 0, 0.06);
}

.page-about .about-hero__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 22px 52px rgba(0, 0, 0, 0.35);
}

/* 本页目录 */
.page-about .about-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 18px 20px;
  margin: 40px 0 0;
  background: rgba(18, 43, 62, 0.65);
  border: 1px solid rgba(58, 90, 124, 0.55);
  border-radius: var(--radius);
}

.page-about .about-index__label {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-right: 8px;
}

.page-about .about-index a {
  font-size: 14px;
  color: var(--moon);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-index a:hover {
  color: var(--amber);
  border-color: rgba(255, 179, 0, 0.5);
  background: rgba(255, 179, 0, 0.06);
}

/* 品牌故事 */
.page-about .about-story {
  background: var(--paper);
  color: var(--ink);
  padding: 64px 0;
}

.page-about .about-story__grid {
  display: grid;
  gap: 28px;
}

.page-about .about-story__main,
.page-about .about-team__content,
.page-about .about-honors__intro {
  color: var(--ink);
}

.page-about .about-story__aside {
  border-left: 3px solid var(--amber);
  padding-left: 20px;
}

.page-about .about-story__quote {
  font-size: 1.3rem;
  font-weight: 800;
  line-height: 1.5;
  color: var(--night);
  margin: 0 0 12px;
}

.page-about .about-story__note {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

/* 发展里程碑 */
.page-about .about-milestones {
  background: linear-gradient(160deg, var(--night-2) 0%, var(--night) 100%);
  clip-path: polygon(0 var(--about-slice), 100% 0, 100% calc(100% - var(--about-slice)), 0 100%);
  padding: calc(64px + var(--about-slice)) 0 calc(64px + var(--about-slice));
}

.page-about .about-milestones__layout {
  display: grid;
  gap: 40px;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--amber), rgba(58, 90, 124, 0.6), transparent);
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 48px;
  padding-bottom: 36px;
}

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

.page-about .about-timeline__dot {
  position: absolute;
  left: 6px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 179, 0, 0.18);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .about-timeline__item:hover .about-timeline__dot {
  transform: scale(1.25);
  box-shadow: 0 0 0 8px rgba(255, 179, 0, 0.22);
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-data);
  font-size: 14px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.page-about .about-timeline__body h3 {
  font-size: 1.18rem;
  color: var(--moon);
  margin: 0 0 8px;
}

.page-about .about-timeline__body p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--muted);
  margin: 0;
  max-width: 540px;
}

.page-about .about-milestones__media {
  margin: 0;
}

.page-about .about-milestones__media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.4);
}

/* 团队与组织 */
.page-about .about-team {
  background: var(--paper);
  color: var(--ink);
  padding: 64px 0;
}

.page-about .about-team__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-team__media {
  margin: 0;
}

.page-about .about-team__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 18px 44px rgba(13, 32, 48, 0.18);
}

/* 资质与认证 */
.page-about .about-cert {
  background: var(--night);
  clip-path: polygon(0 var(--about-slice), 100% 0, 100% 100%, 0 100%);
  padding: calc(64px + var(--about-slice)) 0 64px;
}

.page-about .about-cert__grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.page-about .about-cert__card {
  background: var(--night-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .about-cert__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.3);
}

.page-about .about-cert__badge {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  color: var(--night);
  background: var(--amber);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}

.page-about .about-cert__card h3 {
  font-size: 1.1rem;
  color: var(--moon);
  margin: 0 0 8px;
}

.page-about .about-cert__card p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
}

/* 生态与荣誉 */
.page-about .about-honors {
  background: var(--paper);
  color: var(--ink);
  padding: 64px 0;
}

.page-about .about-honors__wrap {
  display: grid;
  gap: 32px;
}

.page-about .about-honors__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-honors__list li {
  background: linear-gradient(145deg, #faf4ea 0%, #f7eddc 100%);
  border: 1px solid rgba(122, 139, 154, 0.22);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .about-honors__list li:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(13, 32, 48, 0.12);
}

.page-about .about-honors__award {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: 8px;
  letter-spacing: 0.06em;
}

.page-about .about-honors__list strong {
  display: block;
  font-size: 1.15rem;
  color: var(--night);
  margin-bottom: 6px;
}

.page-about .about-honors__list p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
}

/* 底部 CTA */
.page-about .about-cta {
  background: linear-gradient(135deg, var(--night) 0%, var(--night-2) 68%, #173a55 100%);
  clip-path: polygon(0 var(--about-slice), 100% 0, 100% 100%, 0 100%);
  padding: calc(64px + var(--about-slice)) 0 72px;
}

.page-about .about-cta__inner {
  max-width: 640px;
}

.page-about .about-cta h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--moon);
  margin: 0 0 16px;
}

.page-about .about-cta p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0 0 28px;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-about .about-cert__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding-top: 56px;
  }

  .page-about .about-hero__inner {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-story,
  .page-about .about-team,
  .page-about .about-honors {
    padding-top: 96px;
    padding-bottom: 96px;
  }

  .page-about .about-story__grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
  }

  .page-about .about-milestones {
    padding-top: calc(96px + var(--about-slice));
    padding-bottom: calc(96px + var(--about-slice));
  }

  .page-about .about-milestones__layout {
    grid-template-columns: 7fr 4fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: 5fr 7fr;
    gap: 56px;
    align-items: center;
  }

  .page-about .about-cert {
    padding-top: calc(96px + var(--about-slice));
    padding-bottom: 96px;
  }

  .page-about .about-cert__grid {
    gap: 24px;
  }

  .page-about .about-honors__wrap {
    grid-template-columns: 5fr 7fr;
    gap: 56px;
    align-items: start;
  }

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

  .page-about .about-cta {
    padding-top: calc(96px + var(--about-slice));
    padding-bottom: 96px;
  }
}