.page-about {
  background:
    radial-gradient(110% 62% at 100% 0%, rgba(14, 42, 51, .8), transparent 60%),
    var(--yx-ink);
  color: var(--yx-mist);
  overflow-x: clip;
}

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

/* 首屏 */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(32px, 6vw, 88px) 0 clamp(24px, 3.6vw, 48px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -34% -14% auto -14%;
  height: 120%;
  background:
    radial-gradient(44% 58% at 16% 34%, rgba(183, 255, 60, .16), transparent 62%),
    radial-gradient(38% 52% at 84% 10%, rgba(90, 216, 255, .13), transparent 68%);
  transform: skewY(-6deg);
  pointer-events: none;
  z-index: 0;
}

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

.page-about .about-hero__title {
  margin: clamp(14px, 2vw, 22px) 0 0;
  max-width: 22ch;
  font-weight: 200;
  line-height: 1.08;
  letter-spacing: -.012em;
}

.page-about .about-hero__lede {
  margin: clamp(16px, 2.2vw, 26px) 0 0;
  max-width: 58ch;
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  line-height: 1.78;
  color: rgba(242, 245, 243, .78);
}

.page-about .about-hero__pulse {
  display: inline-flex;
  align-items: center;
  gap: .62em;
  margin: clamp(16px, 2vw, 24px) 0 0;
  padding: .5em .95em;
  border: 1px solid rgba(255, 180, 74, .42);
  border-radius: 999px;
  font-family: var(--yx-mono);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--yx-amber);
  background: rgba(255, 180, 74, .06);
}

.page-about .about-hero__pulse::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--yx-amber);
  box-shadow: 0 0 0 0 rgba(255, 180, 74, .55);
  animation: about-pulse 2.8s var(--yx-ease) infinite;
}

@keyframes about-pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 180, 74, .5); }
  70% { box-shadow: 0 0 0 12px rgba(255, 180, 74, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 180, 74, 0); }
}

/* 首屏阅读路径 */
.page-about .about-paths {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(28px, 4vw, 52px);
  background: var(--yx-line);
  border-top: 1px solid var(--yx-line);
  border-bottom: 1px solid var(--yx-line);
}

.page-about .about-path {
  display: grid;
  gap: .3em;
  padding: clamp(16px, 2.4vw, 26px) clamp(14px, 2vw, 22px);
  background: var(--yx-ink);
  color: inherit;
  text-decoration: none;
  transition: background .3s var(--yx-ease);
}

.page-about .about-path:hover,
.page-about .about-path:focus-visible {
  background: var(--yx-deep-green);
}

.page-about .about-path__idx {
  font-family: var(--yx-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--yx-ice);
}

.page-about .about-path__name {
  font-size: clamp(.98rem, 1.5vw, 1.1rem);
  font-weight: 600;
  letter-spacing: .01em;
}

.page-about .about-path__meta {
  font-family: var(--yx-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--yx-mid);
}

/* 布局骨架 */
.page-about .yx-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.6vw, 48px);
  align-items: start;
}

.page-about .about-body {
  min-width: 0;
}

.page-about .about-section {
  padding: clamp(40px, 6vw, 88px) 0;
}

.page-about .about-section:first-child {
  padding-top: clamp(18px, 2.6vw, 34px);
}

.page-about .about-h2 {
  margin-top: .55em;
  font-weight: 200;
  max-width: 26ch;
}

.page-about .about-lede {
  margin: 1em 0 0;
  max-width: 64ch;
  line-height: 1.8;
  color: rgba(242, 245, 243, .74);
}

.page-about .about-h3 {
  margin: .35em 0 .5em;
  font-size: clamp(1.02rem, 1.6vw, 1.26rem);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: .01em;
}

.page-about .about-body-copy {
  margin: 0 0 1em;
  max-width: 62ch;
  line-height: 1.78;
  color: rgba(242, 245, 243, .72);
}

/* 时间线 */
.page-about .about-timeline {
  list-style: none;
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--yx-lime), rgba(183, 255, 60, .05));
}

.page-about .about-timeline > li {
  position: relative;
  padding: 0 0 clamp(24px, 4vw, 40px) clamp(32px, 5vw, 54px);
}

.page-about .about-timeline > li:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline > li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 9px;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--yx-ink);
  border: 2px solid var(--yx-lime);
  transform: rotate(45deg);
}

.page-about .about-year {
  margin: 0;
  font-family: var(--yx-mono);
  font-size: clamp(1.6rem, 4.4vw, 2.6rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--yx-mist);
}

.page-about .about-timeline p {
  margin: 0;
  max-width: 62ch;
  line-height: 1.78;
  color: rgba(242, 245, 243, .7);
}

/* 数据面板 */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(12px, 2vw, 18px);
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-about .about-stat {
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--yx-line);
  border-radius: 18px;
  background: linear-gradient(158deg, rgba(30, 37, 43, .92), rgba(7, 10, 12, .92));
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--yx-mono);
  font-size: clamp(1.85rem, 4.6vw, 2.9rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--yx-ice);
}

.page-about .about-stat__num--lime {
  color: var(--yx-lime);
}

.page-about .about-stat__num--amber {
  color: var(--yx-amber);
}

.page-about .about-stat__key {
  display: block;
  margin-top: .7em;
  font-size: .8rem;
  letter-spacing: .07em;
  color: var(--yx-mid);
}

.page-about .about-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

/* 图文并排 */
.page-about .about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.2vw, 40px);
  align-items: center;
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-about .about-split--stack {
  margin-top: clamp(28px, 4vw, 48px);
}

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

.page-about .about-figure img {
  display: block;
  width: 100%;
  border-radius: 22px;
  object-fit: cover;
  border: 1px solid var(--yx-line);
}

.page-about .about-figure--wide {
  margin-top: clamp(26px, 3.6vw, 44px);
}

.page-about .about-links {
  margin: clamp(14px, 2vw, 22px) 0 0;
}

/* 资质牌 */
.page-about .about-honors {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(22px, 3vw, 34px);
  background: var(--yx-line);
  border: 1px solid var(--yx-line);
  border-radius: 18px;
  overflow: hidden;
}

.page-about .about-honor {
  padding: clamp(18px, 2.6vw, 28px);
  background: var(--yx-carbon);
}

.page-about .about-honor p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.7;
  color: rgba(242, 245, 243, .72);
}

.page-about .about-honor__year {
  display: inline-flex;
  margin: 0;
  padding: .35em .7em;
  border: 1px dashed rgba(183, 255, 60, .5);
  border-radius: 999px;
  font-family: var(--yx-mono);
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--yx-lime);
}

/* 本地盟市 */
.page-about .about-cities {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
}

.page-about .about-city {
  padding: clamp(14px, 2vw, 20px);
  border: 1px solid var(--yx-line);
  border-radius: 14px;
  background: rgba(18, 23, 27, .62);
  transition: border-color .3s var(--yx-ease), background .3s var(--yx-ease), transform .3s var(--yx-ease);
}

.page-about .about-city:hover {
  border-color: rgba(90, 216, 255, .55);
  background: var(--yx-deep-ice);
  transform: translateY(-3px);
}

.page-about .about-city strong {
  display: block;
  font-size: .98rem;
  font-weight: 600;
  letter-spacing: .01em;
}

.page-about .about-city span {
  display: block;
  margin-top: .45em;
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--yx-mid);
}

/* 推荐理由 */
.page-about .about-reasons {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-about .about-reason {
  position: relative;
  padding: clamp(20px, 2.8vw, 30px) clamp(18px, 2.6vw, 28px) clamp(20px, 2.8vw, 30px) clamp(52px, 6.4vw, 72px);
  border: 1px solid var(--yx-line);
  border-radius: 20px;
  background: linear-gradient(140deg, rgba(31, 58, 26, .5), rgba(18, 23, 27, .92) 62%);
}

.page-about .about-reason__idx {
  position: absolute;
  left: clamp(16px, 2.2vw, 24px);
  top: clamp(21px, 2.9vw, 31px);
  font-family: var(--yx-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--yx-lime);
}

.page-about .about-reason .about-body-copy {
  margin-bottom: 0;
}

/* 结尾行动区 */
.page-about .about-cta {
  margin-top: clamp(30px, 4.6vw, 58px);
  padding: clamp(24px, 4vw, 46px);
  border: 1px solid rgba(183, 255, 60, .22);
  border-radius: 26px;
  background: linear-gradient(118deg, rgba(31, 58, 26, .85), rgba(14, 42, 51, .88));
}

.page-about .about-cta__title {
  margin: 0;
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 200;
  letter-spacing: .01em;
}

.page-about .about-cta .about-body-copy {
  margin-top: 1em;
  color: rgba(242, 245, 243, .78);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
}

/* 断点：路径分栏 */
@media (min-width: 720px) {
  .page-about .about-paths {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-cities {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-honors {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 880px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  }

  .page-about .about-split--reverse > .about-figure {
    order: 2;
  }
}

@media (min-width: 1024px) {
  .page-about .yx-layout {
    grid-template-columns: var(--yx-rail) minmax(0, 1fr);
  }
}

@media (min-width: 1080px) {
  .page-about .about-cities {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__pulse::before {
    animation: none;
  }

  .page-about .about-path,
  .page-about .about-city {
    transition: none;
  }

  .page-about .about-city:hover {
    transform: none;
  }
}