.page-about {
  --about-edge-line: rgba(53, 242, 208, 0.28);
  --about-glass-line: rgba(53, 242, 208, 0.24);
  --about-soft-text: rgba(242, 247, 244, 0.8);
  display: block;
  overflow-x: clip;
  background: var(--c-void);
  color: var(--c-paper);
}

.page-about .about-crumbs {
  position: relative;
  z-index: 3;
  padding-top: 26px;
  padding-bottom: 4px;
}

/* ---------- 首屏框景 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(34px, 6vw, 66px) 0 clamp(78px, 10vw, 138px);
}

.page-about .about-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
  background: var(--c-coal);
}

.page-about .about-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  filter: saturate(0.6) contrast(1.1);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(78% 58% at 10% 16%, rgba(53, 242, 208, 0.14), transparent 68%),
    linear-gradient(166deg, rgba(7, 17, 15, 0.94) 0%, rgba(7, 17, 15, 0.56) 42%, rgba(7, 17, 15, 0.97) 100%);
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: clamp(26px, 5vw, 52px);
  align-items: end;
}

.page-about .about-hero__title {
  margin: 14px 0 18px;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 55px);
  line-height: 1.16;
  letter-spacing: 0.05em;
  color: var(--c-paper);
}

.page-about .about-hero__title span {
  display: block;
}

.page-about .about-hero__lede {
  max-width: 58ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: var(--about-soft-text);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero__note {
  padding: 22px 22px 20px;
  background: var(--c-glass);
  border: 1px solid var(--about-glass-line);
  border-radius: var(--r-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 26px 64px -34px rgba(0, 0, 0, 0.92);
}

.page-about .about-hero__quote {
  margin: 0 0 8px;
  font-family: var(--f-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.68;
  letter-spacing: 0.03em;
  color: var(--c-paper);
}

.page-about .about-hero__cite {
  display: block;
  margin: 0 0 16px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-grey);
}

.page-about .about-hero__ticks {
  list-style: none;
  margin: 0;
  padding: 15px 0 0;
  border-top: 1px solid var(--c-line);
  display: grid;
  gap: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--about-soft-text);
}

.page-about .about-hero__ticks .numeric {
  margin-right: 6px;
  font-weight: 700;
  color: var(--c-cyan);
}

.page-about .about-hero__edge {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  z-index: 1;
  height: clamp(38px, 7vw, 84px);
  background: var(--c-void);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  pointer-events: none;
}

/* ---------- 通用章节标题 ---------- */
.page-about .about-h2 {
  margin: 12px 0 14px;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(23px, 3.5vw, 37px);
  line-height: 1.28;
  letter-spacing: 0.04em;
  color: var(--c-paper);
}

.page-about .about-lede {
  max-width: 58ch;
  margin: 0 0 clamp(28px, 4vw, 44px);
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-grey);
}

/* ---------- 斜向时间线 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--c-line);
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 0 4px rgba(53, 242, 208, 0.12);
}

.page-about .about-timeline__year {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

.page-about .about-phase {
  background: var(--c-turf);
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  transition: border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-about .about-phase[open] {
  border-color: var(--about-edge-line);
  background:
    linear-gradient(180deg, rgba(53, 242, 208, 0.07), transparent 58%),
    var(--c-turf);
}

.page-about .about-phase__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--f-sans);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-paper);
}

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

.page-about .about-phase__summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
}

.page-about .about-phase__mark {
  flex: none;
  font-family: var(--f-mono);
  font-size: 15px;
  color: var(--c-cyan);
  transition: transform var(--t-fast) var(--ease);
}

.page-about .about-phase[open] .about-phase__mark {
  transform: rotate(45deg);
}

.page-about .about-phase__body {
  max-width: 62ch;
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.88;
  color: var(--about-soft-text);
}

.page-about .about-phase__body p {
  margin: 0;
}

/* ---------- 使用人群 ---------- */
.page-about .about-audience {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-about .about-audience__item {
  display: grid;
  gap: 8px;
  padding: 24px 0 26px;
  border-top: 1px solid var(--c-line);
}

.page-about .about-audience__num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--c-orange);
}

.page-about .about-audience__name {
  margin: 0;
  font-family: var(--f-sans);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.07em;
  color: var(--c-paper);
}

.page-about .about-audience__text {
  max-width: 46ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.88;
  color: var(--c-grey);
}

/* ---------- 内容生产四步 ---------- */
.page-about .about-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .about-flow__step {
  position: relative;
  padding: 22px 0 10px;
  border-top: 1px solid var(--c-line);
}

.page-about .about-flow__step::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 52px;
  height: 1px;
  background: var(--c-cyan);
}

.page-about .about-flow__num {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
}

.page-about .about-flow__name {
  margin: 0 0 8px;
  font-family: var(--f-sans);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-paper);
}

.page-about .about-flow__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-grey);
}

.page-about .about-process__note {
  margin: 30px 0 0;
  padding: 16px 20px;
  border-left: 2px solid var(--c-orange);
  background: rgba(23, 48, 41, 0.62);
  font-size: 14px;
  line-height: 1.85;
  color: var(--about-soft-text);
}

/* ---------- 能力版图 ---------- */
.page-about .about-capability__grid {
  display: grid;
  gap: clamp(22px, 4vw, 42px);
}

.page-about .about-capability__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--c-line);
  background: var(--c-turf);
}

.page-about .about-capability__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(198deg, rgba(7, 17, 15, 0.08), rgba(7, 17, 15, 0.72));
}

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

.page-about .about-capability__panels {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .about-capability__panel {
  padding: 22px 22px 24px;
  background: var(--c-turf);
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
}

.page-about .about-capability__panel--glass {
  background: var(--c-glass);
  border-color: var(--about-glass-line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.page-about .about-capability__label {
  margin: 0;
  font-family: var(--f-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--c-grey);
}

.page-about .about-capability__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 16px;
  padding: 0;
}

.page-about .about-capability__tags li {
  padding: 5px 13px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--c-paper);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-about .about-capability__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--about-soft-text);
}

.page-about .about-capability__facts {
  display: grid;
  gap: 12px;
  margin: 14px 0 0;
}

.page-about .about-capability__facts div {
  display: grid;
  gap: 3px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-line);
}

.page-about .about-capability__facts div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .about-capability__facts dt {
  font-family: var(--f-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

.page-about .about-capability__facts dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--about-soft-text);
}

/* ---------- 新疆本地服务 ---------- */
.page-about .about-xinjiang__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-about .about-xinjiang__intro {
  max-width: 54ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-soft-text);
}

.page-about .about-xinjiang__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
}

.page-about .about-xinjiang__list li {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-top: 1px solid var(--c-line);
}

.page-about .about-xinjiang__key {
  font-family: var(--f-sans);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
}

.page-about .about-xinjiang__desc {
  font-size: 14px;
  line-height: 1.82;
  color: var(--c-grey);
}

.page-about .about-xinjiang__figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--c-line);
  clip-path: polygon(0 0, 100% 0, 100% 93%, 0 100%);
}

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

/* ---------- 合作与荣誉 ---------- */
.page-about .about-partners__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-partner {
  height: 100%;
  background: var(--c-coal);
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  transition: border-color var(--t-fast) var(--ease);
}

.page-about .about-partner[open] {
  border-color: rgba(255, 122, 61, 0.45);
}

.page-about .about-partner__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--f-sans);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-paper);
}

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

.page-about .about-partner__summary:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: -2px;
}

.page-about .about-partner__mark {
  flex: none;
  font-family: var(--f-mono);
  color: var(--c-orange);
  transition: transform var(--t-fast) var(--ease);
}

.page-about .about-partner[open] .about-partner__mark {
  transform: rotate(45deg);
}

.page-about .about-partner__body {
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.82;
  color: var(--c-grey);
}

.page-about .about-partner__body p {
  margin: 0;
}

.page-about .about-award {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 26px;
  padding: 20px 22px;
  border: 1px solid rgba(255, 122, 61, 0.32);
  background: linear-gradient(102deg, rgba(255, 122, 61, 0.18), rgba(23, 48, 41, 0.92) 58%);
}

.page-about .about-award__kicker {
  margin: 0;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-peach);
}

.page-about .about-award__text {
  max-width: 52ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-paper);
}

/* ---------- 下一步入口 ---------- */
.page-about .about-next__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-about .about-next__link {
  display: grid;
  gap: 6px;
  padding: 22px 0;
  border-top: 1px solid var(--c-line);
  text-decoration: none;
  color: inherit;
  transition: padding-left var(--t-fast) var(--ease);
}

.page-about .about-next__name {
  font-family: var(--f-sans);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-paper);
  transition: color var(--t-fast) var(--ease);
}

.page-about .about-next__desc {
  font-size: 14px;
  line-height: 1.74;
  color: var(--c-grey);
}

.page-about .about-next__link:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 4px;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-about .about-xinjiang__list li {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-about .about-partners__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-next__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 44px;
  }
}

@media (min-width: 800px) {
  .page-about .about-audience {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(34px, 5vw, 66px);
  }

  .page-about .about-audience__item {
    padding-right: 8px;
  }
}

@media (min-width: 880px) {
  .page-about .about-timeline__item {
    grid-template-columns: 154px minmax(0, 1fr);
    gap: 30px;
    margin-bottom: 16px;
    padding-left: 0;
    border-left: 0;
  }

  .page-about .about-timeline__item::before {
    display: none;
  }

  .page-about .about-timeline__year {
    align-self: stretch;
    padding: 13px 26px 0 0;
    border-right: 1px solid var(--c-line);
    font-size: 22px;
    text-align: right;
  }
}

@media (min-width: 900px) {
  .page-about .about-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-flow__step {
    padding: 22px 24px 14px;
    border-right: 1px solid var(--c-line);
  }

  .page-about .about-flow__step:first-child {
    padding-left: 0;
  }

  .page-about .about-flow__step:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-about .about-flow__step::before {
    left: 0;
  }

  .page-about .about-flow__step:first-child::before {
    left: 0;
  }
}

@media (min-width: 920px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.88fr);
  }
}

@media (min-width: 960px) {
  .page-about .about-capability__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-xinjiang__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
  }
}

@media (hover: hover) {
  .page-about .about-capability__tags li:hover {
    border-color: var(--c-cyan);
    color: var(--c-cyan);
  }

  .page-about .about-next__link:hover {
    padding-left: 14px;
  }

  .page-about .about-next__link:hover .about-next__name {
    color: var(--c-cyan);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-phase,
  .page-about .about-phase__mark,
  .page-about .about-partner,
  .page-about .about-partner__mark,
  .page-about .about-capability__tags li,
  .page-about .about-next__link,
  .page-about .about-next__name {
    transition-duration: 0.01ms;
  }
}