.page-about {
  --about-cut: 20px;
  --about-glow-violet: rgba(168, 85, 247, 0.4);
  --about-glow-cyan: rgba(34, 211, 238, 0.24);
  --about-panel: linear-gradient(148deg, rgba(26, 16, 48, 0.94), rgba(11, 7, 20, 0.78));
}

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

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(1.8rem, 6vw, 4.5rem));
  padding-bottom: clamp(2.4rem, 6vw, 4.5rem);
  overflow: hidden;
  isolation: isolate;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -25% -15% auto -25%;
  height: 145%;
  z-index: -1;
  background:
    radial-gradient(closest-side at 74% 20%, var(--about-glow-violet), transparent 72%),
    radial-gradient(closest-side at 18% 78%, var(--about-glow-cyan), transparent 70%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(1.8rem, 4vw, 3rem);
  align-items: start;
}

.page-about .about-hero__title {
  margin: 0.6rem 0 0;
  font-size: clamp(2.2rem, 7.4vw, 4.6rem);
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--white);
  text-wrap: balance;
}

.page-about .about-hero__lede {
  margin-top: clamp(1rem, 2.4vw, 1.6rem);
  max-width: 62ch;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(1.4rem, 3vw, 2rem);
}

.page-about .about-hero__coords {
  list-style: none;
  margin: clamp(1.6rem, 4vw, 2.6rem) 0 0;
  padding: 0 0 0 1rem;
  border-left: 2px solid var(--line-soft);
  display: grid;
  gap: 0.55rem;
}

.page-about .about-hero__coord {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--haze);
}

.page-about .about-hero__coord b {
  font-size: 1rem;
  font-weight: 700;
  color: var(--cyan);
}

.page-about .about-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, var(--about-cut) 100%, 0 calc(100% - var(--about-cut)));
}

.page-about .about-hero__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

/* ---------- 起点 ---------- */

.page-about .about-origin__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}

.page-about .about-origin .section__title {
  margin-top: 0.5rem;
}

.page-about .about-origin .prose + .prose {
  margin-top: 1rem;
}

.page-about .about-origin .prose strong {
  color: var(--mint);
  font-weight: 700;
}

.page-about .about-origin__more {
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
  display: inline-block;
}

.page-about .about-origin__plate {
  position: relative;
  padding: clamp(1.2rem, 3vw, 1.8rem);
  background: var(--about-panel);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--violet);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
}

.page-about .about-origin__plate-year {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 6vw, 2.8rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--violet);
  text-shadow: var(--shadow-neon);
  line-height: 1;
}

.page-about .about-origin__plate-text {
  margin: 0.7rem 0 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--white);
}

.page-about .about-origin__note {
  margin-top: 1rem;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--haze);
  border-left: 1px solid var(--line);
  padding-left: 0.9rem;
}

/* ---------- 信息标准 ---------- */

.page-about .about-standard {
  position: relative;
  background:
    linear-gradient(180deg, rgba(26, 16, 48, 0.72), rgba(11, 7, 20, 0)),
    radial-gradient(60% 60% at 90% 0%, rgba(34, 211, 238, 0.14), transparent 70%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-standard__head {
  max-width: 62ch;
}

.page-about .about-standard__lede {
  margin-top: 0.9rem;
}

.page-about .about-standard__tabs {
  margin-top: clamp(1.6rem, 4vw, 2.6rem);
}

.page-about .about-standard__tabs .segmented__list {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: thin;
}

.page-about .about-standard__tabs .segmented__btn {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.page-about .about-standard__tabs .segmented__btn.is-active {
  color: var(--cyan);
}

.page-about .about-standard__panel {
  margin-top: 0.9rem;
  padding: clamp(1.2rem, 3.2vw, 2.2rem);
  background: var(--about-panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, 0 100%);
}

.page-about .about-standard__p-title {
  margin: 0;
  font-size: clamp(1.05rem, 2.8vw, 1.4rem);
  line-height: 1.4;
  color: var(--white);
}

.page-about .about-standard__p-text {
  margin: 0.8rem 0 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--haze);
  max-width: 70ch;
}

.page-about .about-standard__chips {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-about .about-standard__chips li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.9rem;
  color: var(--white);
}

.page-about .about-standard__p-link {
  margin-top: 1.2rem;
  display: inline-block;
}

/* ---------- 发展历程 ---------- */

.page-about .about-road__head {
  max-width: 26ch;
}

.page-about .about-road__media {
  margin: clamp(1.4rem, 3.5vw, 2.2rem) 0 clamp(1.6rem, 4vw, 2.6rem);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
}

.page-about .about-road__media img {
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-about .about-road__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
  position: relative;
}

.page-about .about-road__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
  padding: clamp(1rem, 2.6vw, 1.5rem) clamp(1rem, 2.8vw, 1.7rem);
  background: var(--about-panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--violet);
  clip-path: polygon(0 0, calc(100% - var(--cut-sm)) 0, 100% var(--cut-sm), 100% 100%, var(--cut-sm) 100%, 0 calc(100% - var(--cut-sm)));
}

.page-about .about-road__item:nth-child(even) {
  border-left-color: var(--cyan);
}

.page-about .about-road__year {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-about .about-road__item:nth-child(even) .about-road__year {
  color: var(--violet);
}

.page-about .about-road__title {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.45;
  color: var(--white);
}

.page-about .about-road__text {
  margin: 0.4rem 0 0;
  font-size: 0.92rem;
  line-height: 1.68;
  color: var(--haze);
}

/* ---------- 团队 ---------- */

.page-about .about-team {
  background: linear-gradient(180deg, rgba(26, 16, 48, 0.5), rgba(11, 7, 20, 0));
  border-top: 1px solid var(--line);
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
  align-items: start;
}

.page-about .about-team .section__title {
  margin-top: 0.5rem;
}

.page-about .about-team .prose {
  margin-top: 0.9rem;
}

.page-about .about-team__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  margin-top: clamp(1.3rem, 3vw, 1.9rem);
}

.page-about .about-team__stats .stat {
  padding: 0.9rem 1rem;
  background: rgba(11, 7, 20, 0.7);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%);
}

.page-about .about-team__stats .stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--mint);
}

.page-about .about-team__stats .stat__label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--haze);
}

.page-about .about-team__foot {
  margin: clamp(1.1rem, 2.6vw, 1.5rem) 0 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--haze);
}

.page-about .about-team__foot a {
  color: var(--cyan);
  word-break: break-all;
}

.page-about .about-team__media {
  margin: 0;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, var(--about-cut) 100%, 0 calc(100% - var(--about-cut)));
}

.page-about .about-team__media img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 认可与合作 ---------- */

.page-about .about-trust__grid {
  display: grid;
  gap: clamp(1rem, 3vw, 1.6rem);
}

.page-about .about-trust__card {
  padding: clamp(1.3rem, 3.2vw, 2.2rem);
  background: var(--about-panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--amber);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, 0 100%);
}

.page-about .about-trust__card--alt {
  border-top-color: var(--mint);
}

.page-about .about-trust .section__title,
.page-about .about-trust__title {
  margin: 0.5rem 0 0;
  font-size: clamp(1.3rem, 3.4vw, 1.9rem);
  line-height: 1.28;
  color: var(--white);
}

.page-about .about-trust .prose {
  margin-top: 0.9rem;
}

.page-about .about-trust__link {
  margin-top: 1.2rem;
  display: inline-block;
}

/* ---------- 收藏与检查 ---------- */

.page-about .about-keep__panel {
  position: relative;
  padding: clamp(1.4rem, 4vw, 2.8rem);
  background:
    radial-gradient(80% 120% at 100% 0%, rgba(255, 138, 61, 0.18), transparent 65%),
    linear-gradient(150deg, rgba(26, 16, 48, 0.96), rgba(11, 7, 20, 0.86));
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, var(--about-cut) 100%, 0 calc(100% - var(--about-cut)));
}

.page-about .about-keep__head {
  max-width: 66ch;
}

.page-about .about-keep .section__title {
  margin-top: 0.5rem;
}

.page-about .about-keep .prose {
  margin-top: 0.9rem;
}

.page-about .about-keep__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(1.3rem, 3vw, 1.9rem);
}

.page-about .about-keep__meta {
  margin: clamp(1.2rem, 3vw, 1.6rem) 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--haze);
}

/* ---------- 断点 ---------- */

@media (min-width: 700px) {
  .page-about .about-standard__chips {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-team__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-trust__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
  }

  .page-about .about-hero__media img {
    aspect-ratio: 5 / 6;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .about-origin__side {
    margin-top: 3.2rem;
  }

  .page-about .about-road__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
  }

  .page-about .about-road__item {
    grid-template-columns: 5.5rem minmax(0, 1fr);
    align-items: start;
    gap: 1rem;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-about .about-team__media {
    margin-top: 1.6rem;
  }

  .page-about .about-standard__tabs .segmented__list {
    overflow: visible;
  }
}

@media (min-width: 1180px) {
  .page-about .about-road__item:nth-child(3n) {
    grid-column: span 2;
    grid-template-columns: 5.5rem minmax(0, 1fr);
  }
}
<<<END>>>