.page-about {
  background: var(--color-neutral);
  color: var(--color-ink);
  overflow-x: clip;
}

.page-about section[data-spy] {
  scroll-margin-top: 96px;
  position: relative;
}

.page-about section[data-spy][data-active="true"] h2::after {
  content: "";
  display: block;
  width: 46px;
  height: 4px;
  margin-top: 10px;
  background: linear-gradient(90deg, var(--color-ember), var(--color-bolt));
}

.page-about .about-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--color-bolt);
  border: 1px solid rgba(0, 229, 255, .4);
  padding: 4px 8px;
  background: rgba(0, 229, 255, .08);
  text-transform: uppercase;
}

.page-about .about-index--light {
  border-color: rgba(0, 229, 255, .5);
  background: rgba(0, 229, 255, .12);
}

.page-about .about-vertical-note {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .32em;
  color: var(--color-silver);
  text-transform: uppercase;
  white-space: nowrap;
  user-select: none;
}

.page-about .about-vertical-note--light {
  color: var(--color-silver);
}

/* 框景首屏 */
.page-about .about-hero {
  background:
    linear-gradient(215deg, transparent 62%, rgba(255, 107, 53, .16) 62%, rgba(255, 107, 53, .16) 64%, transparent 64%, transparent 82%, rgba(0, 229, 255, .1) 82%, rgba(0, 229, 255, .1) 83%, transparent 83%),
    var(--color-pitch);
  color: var(--color-white);
  padding: 28px 0 48px;
  position: relative;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 32px 32px;
  transform: perspective(420px) rotateX(12deg) scale(1.25);
  transform-origin: top center;
  pointer-events: none;
}

.page-about .about-hero .container {
  position: relative;
  z-index: 1;
}

.page-about .about-breadcrumbs {
  margin-bottom: 18px;
}

.page-about .about-hero__frame {
  position: relative;
  border: 1px solid rgba(255, 255, 255, .22);
  padding: 28px 20px 24px;
  background: rgba(11, 59, 46, .5);
  backdrop-filter: blur(2px);
}

.page-about .about-hero__corner {
  position: absolute;
  width: 22px;
  height: 22px;
  border: 0 solid var(--color-ember);
}

.page-about .about-hero__corner--tl {
  top: -2px;
  left: -2px;
  border-top-width: 3px;
  border-left-width: 3px;
}

.page-about .about-hero__corner--tr {
  top: -2px;
  right: -2px;
  border-top-width: 3px;
  border-right-width: 3px;
}

.page-about .about-hero__corner--bl {
  bottom: -2px;
  left: -2px;
  border-bottom-width: 3px;
  border-left-width: 3px;
}

.page-about .about-hero__corner--br {
  bottom: -2px;
  right: -2px;
  border-bottom-width: 3px;
  border-right-width: 3px;
}

.page-about .about-hero__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.page-about .about-hero__code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-silver);
  letter-spacing: .08em;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 7.5vw, 4.6rem);
  line-height: 1.06;
  margin: 0 0 14px;
  letter-spacing: .01em;
}

.page-about .about-hero__lead {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .78);
  max-width: 620px;
  margin: 0 0 28px;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, .18);
  padding-top: 18px;
}

.page-about .about-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-about .about-hero__stat .data-value {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 5.5vw, 2rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-ember);
}

.page-about .about-hero__stat .data-value em {
  font-style: normal;
  font-size: .6em;
  margin-left: 2px;
  color: var(--color-bolt);
}

.page-about .about-hero__stat-label {
  font-size: 12px;
  color: rgba(255, 255, 255, .7);
}

/* 品牌故事 */
.page-about .about-story {
  padding: 72px 0 56px;
}

.page-about .about-story__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about .about-story__aside {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-about .about-story__aside h2,
.page-about .about-journey__aside h2,
.page-about .about-team__aside h2,
.page-about .about-honors__aside h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.1;
  margin: 0;
}

.page-about .about-story__lead {
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  font-weight: 700;
  line-height: 1.55;
  margin: 0 0 20px;
  color: var(--color-ink);
}

.page-about .about-story__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 36px;
}

.page-about .about-story__copy p {
  font-size: 15px;
  line-height: 1.75;
  color: #3A4A44;
  margin: 0 0 14px;
}

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

.page-about .about-story__figure::before {
  content: "";
  position: absolute;
  inset: 14px -14px -14px 14px;
  border: 2px solid var(--color-bolt);
  z-index: 0;
  opacity: .6;
}

.page-about .about-story__figure img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-about .about-story__principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-story__principle {
  background: var(--color-white);
  padding: 18px 18px 16px;
  position: relative;
  border-left: 3px solid var(--color-ember);
  box-shadow: var(--shadow-sm);
}

.page-about .about-story__principle::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 10px;
  height: 10px;
  background: var(--color-bolt);
}

.page-about .about-story__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-bolt);
}

.page-about .about-story__principle h3 {
  margin: 6px 0 6px;
  font-size: 17px;
}

.page-about .about-story__principle p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: #3A4A44;
}

/* 发展历程 */
.page-about .about-journey {
  padding: 72px 0 40px;
  background: linear-gradient(180deg, var(--color-neutral) 0%, #E7EDE9 100%);
  position: relative;
}

.page-about .about-journey__aside {
  position: relative;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-about .about-journey__hint {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-silver);
  margin-top: 4px;
}

.page-about .about-journey__scroller {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-bolt) transparent;
}

.page-about .about-journey__track {
  display: grid;
  grid-template-columns: repeat(6, 180px);
  gap: 32px;
  align-items: start;
  min-width: 1336px;
  padding: 0 48px;
  position: relative;
}

.page-about .about-journey__svg {
  grid-column: 1 / -1;
  grid-row: 1;
  width: 100%;
  height: 72px;
  pointer-events: none;
}

.page-about .about-journey__item {
  grid-row: 2;
  background: var(--color-white);
  padding: 20px 18px;
  border-top: 3px solid var(--color-bolt);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
}

.page-about .about-journey__item::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 14px;
  height: 14px;
  background: var(--color-ember);
  clip-path: polygon(0 0, 100% 100%, 0 100%);
}

.page-about .about-journey__item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-top-color: var(--color-ember);
}

.page-about .about-journey__year {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--color-pitch);
  display: inline-block;
  margin-bottom: 6px;
}

.page-about .about-journey__heading {
  font-size: 16px;
  margin: 0 0 8px;
  color: var(--color-ink);
}

.page-about .about-journey__desc {
  font-size: 13px;
  line-height: 1.65;
  color: #3A4A44;
  margin: 0;
}

/* 核心团队 */
.page-about .about-team {
  background: var(--color-pitch);
  color: var(--color-white);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}

.page-about .about-team::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 36px 36px;
  -webkit-mask-image: radial-gradient(circle at 70% 40%, #000 0%, transparent 78%);
  mask-image: radial-gradient(circle at 70% 40%, #000 0%, transparent 78%);
  pointer-events: none;
}

.page-about .about-team .container {
  position: relative;
  z-index: 1;
}

.page-about .about-team__aside {
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-about .about-team__aside h2 {
  color: var(--color-white);
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

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

.page-about .about-team__figure::after {
  content: "";
  position: absolute;
  right: -10px;
  bottom: -10px;
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-ember);
  z-index: 0;
}

.page-about .about-team__figure img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-about .about-team__content h3 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin: 0 0 14px;
  color: var(--color-white);
}

.page-about .about-team__content p {
  color: rgba(255, 255, 255, .76);
  font-size: 15px;
  line-height: 1.75;
  margin: 0 0 24px;
}

.page-about .about-team__roster {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-about .about-team__roster li {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .14);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-team__roster strong {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--color-bolt);
}

.page-about .about-team__roster span {
  font-size: 13px;
  line-height: 1.65;
  color: rgba(255, 255, 255, .72);
}

/* 资质与荣誉 */
.page-about .about-honors {
  padding: 72px 0;
}

.page-about .about-honors__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-honors__aside {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-about .about-honors__desc {
  font-size: 14px;
  line-height: 1.7;
  color: #3A4A44;
  margin: 12px 0 0;
  max-width: 260px;
}

.page-about .about-honors__main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

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

.page-about .about-honors__figure img {
  width: 100%;
  height: auto;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-about .about-honors__list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-about .about-honors__item {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(11, 59, 46, .08);
}

.page-about .about-honors__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  background: none;
  border: 0;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  text-align: left;
  list-style: none;
  color: var(--color-ink);
}

.page-about .about-honors__trigger::-webkit-details-marker {
  display: none;
}

.page-about .about-honors__year {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-ember);
  border: 1px solid rgba(255, 107, 53, .35);
  padding: 2px 8px;
  flex: 0 0 auto;
}

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

.page-about .about-honors__arrow {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-silver);
  border-bottom: 2px solid var(--color-silver);
  transform: rotate(45deg);
  transition: transform .2s var(--ease);
}

.page-about .about-honors__item[open] .about-honors__arrow {
  transform: rotate(-135deg);
}

.page-about .about-honors__body {
  display: none;
  padding: 0 18px 18px 62px;
}

.page-about .about-honors__item[open] .about-honors__body {
  display: block;
}

.page-about .about-honors__body p {
  font-size: 14px;
  line-height: 1.7;
  color: #3A4A44;
  margin: 0;
  border-left: 2px solid var(--color-bolt);
  padding-left: 12px;
}

/* 底部 CTA */
.page-about .about-cta {
  padding: 0 0 72px;
}

.page-about .about-cta__card {
  background: linear-gradient(120deg, var(--color-pitch) 0%, #0E4B39 100%);
  color: var(--color-white);
  padding: 40px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
  overflow: hidden;
}

.page-about .about-cta__card::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 200px;
  height: 200px;
  border: 24px solid rgba(255, 107, 53, .16);
  border-radius: 50%;
}

.page-about .about-cta__card > * {
  position: relative;
  z-index: 1;
}

.page-about .about-cta__copy {
  max-width: 480px;
}

.page-about .about-cta__copy h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  color: var(--color-white);
  margin: 12px 0 10px;
}

.page-about .about-cta__copy p {
  color: rgba(255, 255, 255, .72);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

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

/* 入场显现 */
.page-about [data-reveal][data-revealed="true"] {
  animation: page-about-reveal .5s var(--ease) both;
}

@keyframes page-about-reveal {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 桌面端布局 */
@media (min-width: 760px) {
  .page-about .about-story__cols {
    grid-template-columns: 1.15fr .85fr;
    gap: 28px;
  }

  .page-about .about-story__principles {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .page-about .about-honors__main {
    grid-template-columns: .8fr 1.2fr;
    gap: 32px;
    align-items: start;
  }

  .page-about .about-cta__card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 40px 48px;
  }

  .page-about .about-journey__hint {
    display: none;
  }
}

@media (min-width: 900px) {
  .page-about .about-story__grid {
    grid-template-columns: 280px 1fr;
    gap: 48px;
  }

  .page-about .about-story__aside,
  .page-about .about-journey__aside,
  .page-about .about-team__aside,
  .page-about .about-honors__aside {
    position: sticky;
    top: 120px;
    align-self: start;
    padding-bottom: 40px;
  }

  .page-about .about-vertical-note {
    position: absolute;
    right: -18px;
    bottom: 0;
  }

  .page-about .about-team__grid {
    grid-template-columns: .95fr 1.05fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-honors__grid {
    grid-template-columns: 320px 1fr;
    gap: 56px;
  }
}

@media (max-width: 520px) {
  .page-about .about-hero__stats {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .page-about .about-hero__stat {
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
  }

  .page-about .about-vertical-note {
    display: none;
  }

  .page-about .about-cta__actions .btn {
    width: 100%;
    justify-content: center;
  }
}