.page-about {
  --about-line: linear-gradient(180deg, rgba(227,176,75,0) 0%, rgba(227,176,75,.85) 6%, rgba(255,223,160,.95) 50%, rgba(227,176,75,.85) 94%, rgba(227,176,75,0) 100%);
  --about-gutter: 40px;
  padding-bottom: 64px;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 24px 0 44px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -26%;
  width: 94%;
  height: 132%;
  background: linear-gradient(150deg, rgba(75,36,130,.92) 0%, rgba(35,16,61,.55) 46%, rgba(18,10,31,0) 78%);
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 84%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: -14%;
  bottom: -18%;
  width: 52%;
  height: 58%;
  background: radial-gradient(circle at 34% 62%, rgba(227,176,75,.16), rgba(227,176,75,0) 70%);
  pointer-events: none;
}

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

.page-about .about-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: 16px;
}

.page-about .about-hero__copy h1 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(30px, 7.2vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 10px 0 16px;
  color: var(--gold-hi);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .page-about .about-hero__copy h1 {
    background-image: linear-gradient(102deg, #FFDFA0 0%, #E3B04B 44%, #8A5F18 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}

.page-about .about-hero__copy .lead {
  max-width: 620px;
  margin: 0;
  color: var(--ivory);
  font-size: 16px;
  line-height: 1.78;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-about .about-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .about-stats__item {
  position: relative;
  padding: 14px 12px 13px 16px;
  background: linear-gradient(158deg, rgba(35,16,61,.96), rgba(18,10,31,.92));
  border: 1px solid var(--edge);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-panel);
}

.page-about .about-stats__num {
  display: block;
  font-family: var(--num);
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold-hi);
}

.page-about .about-stats__key {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--silver);
}

/* ---------- 右侧章节圆点 ---------- */
.page-about .about-dots {
  display: none;
}

/* ---------- 纵向金线骨架 ---------- */
.page-about .about-body {
  position: relative;
  padding: 4px 0 12px;
}

.page-about .about-body::before {
  content: "";
  position: absolute;
  top: 14px;
  bottom: 46px;
  left: max(12px, calc(50% - 590px + 12px));
  width: 2px;
  background: var(--about-line);
  opacity: .72;
  pointer-events: none;
}

.page-about .about-body > .u-container {
  position: relative;
  padding-left: var(--about-gutter);
}

/* ---------- 章节 ---------- */
.page-about .about-chapter {
  position: relative;
  padding: 24px 0 34px;
}

.page-about .about-chapter + .about-chapter {
  border-top: 1px solid rgba(75,36,130,.5);
}

.page-about .about-node {
  position: absolute;
  left: -36px;
  top: 30px;
  width: 16px;
  height: 16px;
  display: grid;
  place-items: center;
  filter: drop-shadow(0 0 8px rgba(227,176,75,.6));
}

.page-about .about-node svg {
  display: block;
  width: 16px;
  height: 16px;
}

.page-about .about-chapter__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.page-about .section-title {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(22px, 4.6vw, 33px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--gold-hi);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .page-about .section-title {
    background-image: linear-gradient(96deg, #FFDFA0 0%, #E3B04B 56%, #B8862A 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}

.page-about .about-chip {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--night);
  background: linear-gradient(120deg, #FFDFA0, #E3B04B);
  border-radius: 3px;
  transform: rotate(-3deg);
  white-space: nowrap;
}

.page-about .about-chapter__body p {
  max-width: 700px;
  margin: 0 0 14px;
  color: var(--ivory);
  font-size: 16px;
  line-height: 1.78;
}

.page-about .about-chapter__body > p:last-child {
  margin-bottom: 0;
}

.page-about .about-note {
  position: relative;
  max-width: 700px;
  padding: 12px 14px 12px 18px;
  background: rgba(35,16,61,.6);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--gold-hi) !important;
  font-size: 15px !important;
}

/* ---------- 版本历程 ---------- */
.page-about .about-versions__lead {
  display: grid;
  gap: 16px;
  margin-bottom: 22px;
}

.page-about .about-plate {
  margin: 0;
  max-width: 340px;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}

.page-about .about-plate .media {
  width: 100%;
}

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

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-timeline__card {
  position: relative;
  height: 100%;
  padding: 15px 16px 15px 22px;
  background: linear-gradient(155deg, rgba(35,16,61,.96) 0%, rgba(18,10,31,.94) 100%);
  border: 1px solid var(--edge);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-panel);
  transition: border-color .28s ease, transform .28s ease;
}

.page-about .about-timeline__card::before {
  content: "";
  position: absolute;
  top: 13px;
  bottom: 13px;
  left: 7px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--gold-hi), var(--gold-deep));
  opacity: .85;
}

.page-about .about-timeline__item:hover .about-timeline__card,
.page-about .about-timeline__item:focus-within .about-timeline__card {
  border-color: var(--gold);
  transform: translateY(-3px);
}

.page-about .about-timeline__idx {
  display: inline-block;
  font-family: var(--num);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--gold);
  margin-bottom: 4px;
}

.page-about .about-timeline__card h3 {
  margin: 0 0 6px;
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ivory);
}

.page-about .about-timeline__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-about .about-timeline__more {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height .3s ease, opacity .3s ease, margin-top .3s ease;
}

.page-about .about-timeline__item:hover .about-timeline__more,
.page-about .about-timeline__item:focus-within .about-timeline__more {
  max-height: 120px;
  opacity: 1;
  margin-top: 8px;
}

@media (hover: none) {
  .page-about .about-timeline__more {
    max-height: none;
    opacity: 1;
    margin-top: 8px;
  }
}

/* ---------- 团队分工 ---------- */
.page-about .about-team__layout {
  display: grid;
  gap: 22px;
}

.page-about .about-crew {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0;
}

.page-about .about-crew__cell {
  padding: 14px 12px;
  background: rgba(35,16,61,.72);
  border: 1px solid var(--edge);
  border-radius: var(--radius-sm);
}

.page-about .about-crew__num {
  display: block;
  font-family: var(--num);
  font-size: 25px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-about .about-crew__unit {
  font-size: 13px;
  margin-left: 2px;
  color: var(--gold-hi);
}

.page-about .about-crew__name {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ivory);
}

.page-about .about-crew__desc {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.62;
  color: var(--silver);
}

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

.page-about .about-team__figure .media {
  width: 100%;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}

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

.page-about .about-team__figure figcaption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--silver);
}

/* ---------- 文档流程 ---------- */
.page-about .about-flow {
  list-style: none;
  margin: 6px 0 20px;
  padding: 0;
}

.page-about .about-flow__step {
  position: relative;
  padding: 14px 0 14px 60px;
  border-top: 1px dashed rgba(75,36,130,.75);
}

.page-about .about-flow__step:first-child {
  border-top: 0;
}

.page-about .about-flow__num {
  position: absolute;
  left: 0;
  top: 8px;
  font-family: var(--num);
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold);
  opacity: .85;
}

.page-about .about-flow__step h3 {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ivory);
}

.page-about .about-flow__step p {
  margin: 0;
  max-width: 660px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 协作与荣誉 ---------- */
.page-about .about-partners {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.page-about .about-partners__card {
  padding: 18px 16px;
  background: linear-gradient(160deg, rgba(35,16,61,.95), rgba(18,10,31,.9));
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
}

.page-about .about-partners__card h3 {
  margin: 10px 0 8px;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 800;
  color: var(--ivory);
}

.page-about .about-partners__card p {
  margin: 0;
  max-width: none;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--silver);
}

/* ---------- 未来 ---------- */
.page-about .about-next__grid {
  display: grid;
  gap: 24px;
}

.page-about .about-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-next__list li {
  position: relative;
  padding: 14px 14px 14px 50px;
  background: rgba(35,16,61,.55);
  border: 1px solid var(--edge);
  border-radius: var(--radius-sm);
}

.page-about .about-next__idx {
  position: absolute;
  left: 14px;
  top: 14px;
  font-family: var(--num);
  font-size: 20px;
  font-weight: 800;
  line-height: 1;
  color: var(--gold-hi);
}

.page-about .about-next__list h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ivory);
}

.page-about .about-next__list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-about .about-next__figure {
  margin: 0 0 14px;
  opacity: .12;
  max-width: 240px;
}

.page-about .about-next__figure .media {
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius);
}

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

.page-about .about-next__aside p {
  max-width: none;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--silver);
  margin-bottom: 14px;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero {
    padding: 34px 0 56px;
  }

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

  .page-about .about-stats__num {
    font-size: 30px;
  }

  .page-about .about-versions__lead {
    grid-template-columns: 300px minmax(0, 1fr);
    align-items: start;
    gap: 24px;
  }

  .page-about .about-plate {
    max-width: none;
  }

  .page-about .about-crew {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }

  .page-about .about-partners {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-about {
    --about-gutter: 56px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, .58fr);
    align-items: end;
    gap: 44px;
    margin-top: 26px;
  }

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

  .page-about .about-node {
    left: -44px;
    top: 32px;
  }

  .page-about .about-chapter {
    padding: 30px 0 42px;
  }

  .page-about .about-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 26px;
  }

  .page-about .about-timeline__item:nth-child(even) {
    margin-top: 36px;
  }

  .page-about .about-team__layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 30px;
    align-items: start;
  }

  .page-about .about-team__figure {
    transform: translateY(-10px) rotate(.6deg);
  }

  .page-about .about-partners__card--offset {
    margin-top: 26px;
  }

  .page-about .about-next__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    gap: 32px;
    align-items: start;
  }

  .page-about .about-next__aside {
    border-left: 1px solid rgba(75,36,130,.6);
    padding-left: 24px;
  }
}

@media (min-width: 1200px) {
  .page-about .about-dots {
    display: grid;
    gap: 16px;
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
  }

  .page-about .about-dots__item {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    font-size: 11px;
    letter-spacing: .08em;
    color: var(--silver);
    text-decoration: none;
    transition: color .2s ease;
  }

  .page-about .about-dots__item::after {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 1px solid var(--gold);
    background: transparent;
    transition: background .2s ease, box-shadow .2s ease;
  }

  .page-about .about-dots__item:hover,
  .page-about .about-dots__item:focus-visible {
    color: var(--gold-hi);
  }

  .page-about .about-dots__item:hover::after,
  .page-about .about-dots__item:focus-visible::after {
    background: var(--gold);
    box-shadow: 0 0 10px rgba(227,176,75,.75);
  }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__card,
  .page-about .about-timeline__more {
    transition: none;
  }

  .page-about .about-timeline__item:hover .about-timeline__card,
  .page-about .about-timeline__item:focus-within .about-timeline__card {
    transform: none;
  }
}

.page-about {
  --about-line: linear-gradient(180deg, rgba(227,176,75,0) 0%, rgba(227,176,75,.85) 6%, rgba(255,223,160,.95) 50%, rgba(227,176,75,.85) 94%, rgba(227,176,75,0) 100%);
  --about-gutter: 40px;
  padding-bottom: 64px;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 24px 0 44px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -26%;
  width: 94%;
  height: 132%;
  background: linear-gradient(150deg, rgba(75,36,130,.92) 0%, rgba(35,16,61,.55) 46%, rgba(18,10,31,0) 78%);
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 84%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: -14%;
  bottom: -18%;
  width: 52%;
  height: 58%;
  background: radial-gradient(circle at 34% 62%, rgba(227,176,75,.16), rgba(227,176,75,0) 70%);
  pointer-events: none;
}

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

.page-about .about-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: 16px;
}

.page-about .about-hero__copy h1 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(30px, 7.2vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 10px 0 16px;
  color: var(--gold-hi);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .page-about .about-hero__copy h1 {
    background-image: linear-gradient(102deg, #FFDFA0 0%, #E3B04B 44%, #8A5F18 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}

.page-about .about-hero__copy .lead {
  max-width: 620px;
  margin: 0;
  color: var(--ivory);
  font-size: 16px;
  line-height: 1.78;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-about .about-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .about-stats__item {
  position: relative;
  padding: 14px 12px 13px 16px;
  background: linear-gradient(158deg, rgba(35,16,61,.96), rgba(18,10,31,.92));
  border: 1px solid var(--edge);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-panel);
}

.page-about .about-stats__num {
  display: block;
  font-family: var(--num);
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold-hi);
}

.page-about .about-stats__key {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--silver);
}

/* ---------- 右侧章节圆点 ---------- */
.page-about .about-dots {
  display: none;
}

/* ---------- 纵向金线骨架 ---------- */
.page-about .about-body {
  position: relative;
  padding: 4px 0 12px;
}

.page-about .about-body::before {
  content: "";
  position: absolute;
  top: 14px;
  bottom: 46px;
  left: max(12px, calc(50% - 590px + 12px));
  width: 2px;
  background: var(--about-line);
  opacity: .72;
  pointer-events: none;
}

.page-about .about-body > .u-container {
  position: relative;
  padding-left: var(--about-gutter);
}

/* ---------- 章节 ---------- */
.page-about .about-chapter {
  position: relative;
  padding: 24px 0 34px;
}

.page-about .about-chapter + .about-chapter {
  border-top: 1px solid rgba(75,36,130,.5);
}

.page-about .about-node {
  position: absolute;
  left: -36px;
  top: 30px;
  width: 16px;
  height: 16px;
  display: grid;
  place-items: center;
  filter: drop-shadow(0 0 8px rgba(227,176,75,.6));
}

.page-about .about-node svg {
  display: block;
  width: 16px;
  height: 16px;
}

.page-about .about-chapter__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.page-about .section-title {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(22px, 4.6vw, 33px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--gold-hi);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .page-about .section-title {
    background-image: linear-gradient(96deg, #FFDFA0 0%, #E3B04B 56%, #B8862A 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}

.page-about .about-chip {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--night);
  background: linear-gradient(120deg, #FFDFA0, #E3B04B);
  border-radius: 3px;
  transform: rotate(-3deg);
  white-space: nowrap;
}

.page-about .about-chapter__body p {
  max-width: 700px;
  margin: 0 0 14px;
  color: var(--ivory);
  font-size: 16px;
  line-height: 1.78;
}

.page-about .about-chapter__body > p:last-child {
  margin-bottom: 0;
}

.page-about .about-note {
  position: relative;
  max-width: 700px;
  padding: 12px 14px 12px 18px;
  background: rgba(35,16,61,.6);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--gold-hi) !important;
  font-size: 15px !important;
}

/* ---------- 版本历程 ---------- */
.page-about .about-versions__lead {
  display: grid;
  gap: 16px;
  margin-bottom: 22px;
}

.page-about .about-plate {
  margin: 0;
  max-width: 340px;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}

.page-about .about-plate .media {
  width: 100%;
}

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

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-timeline__card {
  position: relative;
  height: 100%;
  padding: 15px 16px 15px 22px;
  background: linear-gradient(155deg, rgba(35,16,61,.96) 0%, rgba(18,10,31,.94) 100%);
  border: 1px solid var(--edge);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-panel);
  transition: border-color .28s ease, transform .28s ease;
}

.page-about .about-timeline__card::before {
  content: "";
  position: absolute;
  top: 13px;
  bottom: 13px;
  left: 7px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--gold-hi), var(--gold-deep));
  opacity: .85;
}

.page-about .about-timeline__item:hover .about-timeline__card,
.page-about .about-timeline__item:focus-within .about-timeline__card {
  border-color: var(--gold);
  transform: translateY(-3px);
}

.page-about .about-timeline__idx {
  display: inline-block;
  font-family: var(--num);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--gold);
  margin-bottom: 4px;
}

.page-about .about-timeline__card h3 {
  margin: 0 0 6px;
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ivory);
}

.page-about .about-timeline__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-about .about-timeline__more {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height .3s ease, opacity .3s ease, margin-top .3s ease;
}

.page-about .about-timeline__item:hover .about-timeline__more,
.page-about .about-timeline__item:focus-within .about-timeline__more {
  max-height: 120px;
  opacity: 1;
  margin-top: 8px;
}

@media (hover: none) {
  .page-about .about-timeline__more {
    max-height: none;
    opacity: 1;
    margin-top: 8px;
  }
}

/* ---------- 团队分工 ---------- */
.page-about .about-team__layout {
  display: grid;
  gap: 22px;
}

.page-about .about-crew {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0;
}

.page-about .about-crew__cell {
  padding: 14px 12px;
  background: rgba(35,16,61,.72);
  border: 1px solid var(--edge);
  border-radius: var(--radius-sm);
}

.page-about .about-crew__num {
  display: block;
  font-family: var(--num);
  font-size: 25px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-about .about-crew__unit {
  font-size: 13px;
  margin-left: 2px;
  color: var(--gold-hi);
}

.page-about .about-crew__name {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ivory);
}

.page-about .about-crew__desc {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.62;
  color: var(--silver);
}

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

.page-about .about-team__figure .media {
  width: 100%;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}

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

.page-about .about-team__figure figcaption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--silver);
}

/* ---------- 文档流程 ---------- */
.page-about .about-flow {
  list-style: none;
  margin: 6px 0 20px;
  padding: 0;
}

.page-about .about-flow__step {
  position: relative;
  padding: 14px 0 14px 60px;
  border-top: 1px dashed rgba(75,36,130,.75);
}

.page-about .about-flow__step:first-child {
  border-top: 0;
}

.page-about .about-flow__num {
  position: absolute;
  left: 0;
  top: 8px;
  font-family: var(--num);
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold);
  opacity: .85;
}

.page-about .about-flow__step h3 {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ivory);
}

.page-about .about-flow__step p {
  margin: 0;
  max-width: 660px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 协作与荣誉 ---------- */
.page-about .about-partners {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.page-about .about-partners__card {
  padding: 18px 16px;
  background: linear-gradient(160deg, rgba(35,16,61,.95), rgba(18,10,31,.9));
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
}

.page-about .about-partners__card h3 {
  margin: 10px 0 8px;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 800;
  color: var(--ivory);
}

.page-about .about-partners__card p {
  margin: 0;
  max-width: none;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--silver);
}

/* ---------- 未来 ---------- */
.page-about .about-next__grid {
  display: grid;
  gap: 24px;
}

.page-about .about-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-next__list li {
  position: relative;
  padding: 14px 14px 14px 50px;
  background: rgba(35,16,61,.55);
  border: 1px solid var(--edge);
  border-radius: var(--radius-sm);
}

.page-about .about-next__idx {
  position: absolute;
  left: 14px;
  top: 14px;
  font-family: var(--num);
  font-size: 20px;
  font-weight: 800;
  line-height: 1;
  color: var(--gold-hi);
}

.page-about .about-next__list h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ivory);
}

.page-about .about-next__list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-about .about-next__figure {
  margin: 0 0 14px;
  opacity: .12;
  max-width: 240px;
}

.page-about .about-next__figure .media {
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius);
}

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

.page-about .about-next__aside p {
  max-width: none;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--silver);
  margin-bottom: 14px;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero {
    padding: 34px 0 56px;
  }

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

  .page-about .about-stats__num {
    font-size: 30px;
  }

  .page-about .about-versions__lead {
    grid-template-columns: 300px minmax(0, 1fr);
    align-items: start;
    gap: 24px;
  }

  .page-about .about-plate {
    max-width: none;
  }

  .page-about .about-crew {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }

  .page-about .about-partners {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-about {
    --about-gutter: 56px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, .58fr);
    align-items: end;
    gap: 44px;
    margin-top: 26px;
  }

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

  .page-about .about-node {
    left: -44px;
    top: 32px;
  }

  .page-about .about-chapter {
    padding: 30px 0 42px;
  }

  .page-about .about-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 26px;
  }

  .page-about .about-timeline__item:nth-child(even) {
    margin-top: 36px;
  }

  .page-about .about-team__layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 30px;
    align-items: start;
  }

  .page-about .about-team__figure {
    transform: translateY(-10px) rotate(.6deg);
  }

  .page-about .about-partners__card--offset {
    margin-top: 26px;
  }

  .page-about .about-next__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    gap: 32px;
    align-items: start;
  }

  .page-about .about-next__aside {
    border-left: 1px solid rgba(75,36,130,.6);
    padding-left: 24px;
  }
}

@media (min-width: 1200px) {
  .page-about .about-dots {
    display: grid;
    gap: 16px;
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
  }

  .page-about .about-dots__item {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    font-size: 11px;
    letter-spacing: .08em;
    color: var(--silver);
    text-decoration: none;
    transition: color .2s ease;
  }

  .page-about .about-dots__item::after {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 1px solid var(--gold);
    background: transparent;
    transition: background .2s ease, box-shadow .2s ease;
  }

  .page-about .about-dots__item:hover,
  .page-about .about-dots__item:focus-visible {
    color: var(--gold-hi);
  }

  .page-about .about-dots__item:hover::after,
  .page-about .about-dots__item:focus-visible::after {
    background: var(--gold);
    box-shadow: 0 0 10px rgba(227,176,75,.75);
  }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__card,
  .page-about .about-timeline__more {
    transition: none;
  }

  .page-about .about-timeline__item:hover .about-timeline__card,
  .page-about .about-timeline__item:focus-within .about-timeline__card {
    transform: none;
  }
}
<<<END>>>