.page-about {
  --about-hair: rgba(201, 162, 39, 0.16);
  --about-hair-soft: rgba(91, 107, 122, 0.26);
  --about-pad: clamp(56px, 9vw, 128px);
  background: var(--wk-black);
  color: var(--wk-paper);
  font-family: var(--wk-font-body);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumbs-wrap {
  padding-top: clamp(14px, 2.4vw, 24px);
  background: var(--wk-black);
}
.page-about .about-crumbs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-family: var(--wk-font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--wk-slate);
}
.page-about .about-crumbs li {
  display: flex;
  align-items: center;
}
.page-about .about-crumbs li + li::before {
  content: "/";
  margin: 0 10px;
  color: var(--wk-gold-dim);
}
.page-about .about-crumbs a {
  color: var(--wk-gold);
  text-decoration: none;
}
.page-about .about-crumbs a:hover,
.page-about .about-crumbs a:focus-visible {
  color: var(--wk-gold-light);
}

/* ---------- 通用章节元件 ---------- */
.page-about .about-sec-index {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  font-family: var(--wk-font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--wk-gold);
}
.page-about .about-sec-index::after {
  content: "";
  width: 72px;
  height: 1px;
  background: var(--wk-gold-dim);
}
.page-about .about-sec-title {
  margin: 0 0 clamp(18px, 3vw, 30px);
  font-family: var(--wk-font-display);
  font-weight: 700;
  font-size: clamp(25px, 4.4vw, 44px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--wk-paper);
  max-width: 30ch;
}
.page-about .about-prose p {
  color: rgba(242, 244, 247, 0.82);
  margin: 0 0 1.25em;
}
.page-about .wk-figure {
  margin: 0;
}
.page-about .wk-figure__media {
  overflow: hidden;
  border-radius: var(--wk-radius-lg) 6px var(--wk-radius-lg) var(--wk-radius-lg);
  border: 1px solid var(--about-hair);
  background: var(--wk-night);
}
.page-about .wk-figure__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.04);
}
.page-about .wk-figure__caption {
  margin-top: 12px;
  font-family: var(--wk-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--wk-slate);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(24px, 4vw, 48px) 0 clamp(40px, 6vw, 84px);
  background:
    radial-gradient(120% 88% at 84% 4%, rgba(201, 162, 39, 0.17), transparent 62%),
    radial-gradient(92% 76% at 4% 100%, rgba(255, 107, 44, 0.1), transparent 64%),
    var(--wk-black);
}
.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 60px);
  align-items: end;
}
.page-about .about-hero__eyebrow {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 18px;
  font-family: var(--wk-font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--wk-gold);
}
.page-about .about-hero__no {
  font-family: var(--wk-font-display);
  font-weight: 700;
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--wk-gold);
  opacity: 0.85;
}
.page-about .about-hero__title {
  margin: 0 0 clamp(18px, 3vw, 28px);
  font-family: var(--wk-font-display);
  font-weight: 700;
  font-size: clamp(32px, 6.2vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--wk-paper);
  max-width: 17ch;
}
.page-about .about-hero__intro {
  margin: 0 0 clamp(24px, 4vw, 38px);
  max-width: 58ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: rgba(242, 244, 247, 0.8);
}
.page-about .about-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-hero__figure .wk-figure__media {
  aspect-ratio: 16 / 9;
}
.page-about .about-hero__axis {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: clamp(32px, 5vw, 60px);
  font-family: var(--wk-font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--wk-gold);
}
.page-about .about-hero__axis-line {
  flex: 1;
  height: 1px;
  transform-origin: left center;
  background: linear-gradient(90deg, var(--wk-gold-dim), var(--wk-gold) 46%, var(--wk-orange));
}

/* ---------- 起点 ---------- */
.page-about .about-origin {
  padding: var(--about-pad) 0;
  background: var(--wk-black);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  padding: var(--about-pad) 0;
  background: linear-gradient(180deg, var(--wk-black) 0%, var(--wk-night) 38%, var(--wk-black) 100%);
}
.page-about .about-timeline__lead {
  margin: 0 0 clamp(30px, 5vw, 52px);
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--wk-slate);
}
.page-about .about-timeline__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 56px);
}
.page-about .about-timeline__art .wk-figure__media {
  aspect-ratio: 12 / 7;
}
.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--wk-gold), var(--wk-gold-dim) 55%, rgba(110, 90, 24, 0) 100%);
}
.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 clamp(26px, 3.6vw, 42px) 36px;
}
.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 1px solid var(--wk-gold);
  background: var(--wk-black);
  box-shadow: 0 0 0 5px rgba(201, 162, 39, 0.08);
  transition: background-color 0.3s var(--wk-ease), box-shadow 0.3s var(--wk-ease);
}
.page-about .about-timeline__year {
  display: block;
  margin-bottom: 8px;
  font-family: var(--wk-font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--wk-gold);
}
.page-about .about-timeline__card {
  padding: clamp(16px, 2.4vw, 24px) clamp(16px, 2.6vw, 26px);
  border: 1px solid var(--about-hair);
  border-left: 2px solid var(--wk-gold-dim);
  border-radius: 4px var(--wk-radius) var(--wk-radius) var(--wk-radius);
  background: rgba(14, 15, 18, 0.6);
  transition: border-color 0.3s var(--wk-ease), background-color 0.3s var(--wk-ease), transform 0.3s var(--wk-ease);
}
.page-about .about-timeline__card h3 {
  margin: 0 0 8px;
  font-family: var(--wk-font-display);
  font-weight: 600;
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.45;
  color: var(--wk-paper);
}
.page-about .about-timeline__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--wk-slate);
}
.page-about .about-timeline__item:hover .about-timeline__card {
  border-left-color: var(--wk-orange);
  background: rgba(21, 24, 31, 0.92);
  transform: translateX(4px);
}
.page-about .about-timeline__item:hover::before {
  background: var(--wk-orange);
  box-shadow: 0 0 0 6px rgba(255, 107, 44, 0.14);
}

/* ---------- 覆盖与支持 ---------- */
.page-about .about-reach {
  padding: var(--about-pad) 0;
  background: var(--wk-black);
}
.page-about .about-reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.page-about .about-reach__para {
  margin: 0 0 clamp(24px, 3.4vw, 36px);
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(242, 244, 247, 0.78);
}
.page-about .about-reach__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}
.page-about .about-reach__stats li {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--about-hair);
}
.page-about .about-reach__num {
  flex: none;
  min-width: 2.4em;
  font-family: var(--wk-font-mono);
  font-size: clamp(30px, 4.4vw, 46px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--wk-gold);
}
.page-about .about-reach__unit {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--wk-slate);
}
.page-about .about-reach__figure .wk-figure__media {
  aspect-ratio: 4 / 3;
}

/* 平台切换 */
.page-about .about-plat {
  position: relative;
  margin-top: clamp(40px, 6vw, 72px);
  padding-top: clamp(24px, 4vw, 40px);
  border-top: 1px solid var(--about-hair);
}
.page-about .about-plat__heading {
  margin: 0 0 20px;
  font-family: var(--wk-font-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.01em;
  color: var(--wk-paper);
}
.page-about .about-plat__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.page-about .about-plat__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 28px);
}
.page-about .about-plat__tab {
  display: inline-block;
  padding: 10px 20px;
  border: 1px solid var(--about-hair-soft);
  border-radius: 999px;
  font-family: var(--wk-font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--wk-slate);
  cursor: pointer;
  transition: color 0.25s var(--wk-ease), border-color 0.25s var(--wk-ease), background-color 0.25s var(--wk-ease);
}
.page-about .about-plat__tab:hover {
  color: var(--wk-gold-light);
  border-color: var(--wk-line);
}
.page-about #about-plat-ios:checked ~ .about-plat__tabs [for="about-plat-ios"],
.page-about #about-plat-android:checked ~ .about-plat__tabs [for="about-plat-android"],
.page-about #about-plat-web:checked ~ .about-plat__tabs [for="about-plat-web"] {
  color: var(--wk-black);
  background: var(--wk-gold);
  border-color: var(--wk-gold);
}
.page-about #about-plat-ios:focus-visible ~ .about-plat__tabs [for="about-plat-ios"],
.page-about #about-plat-android:focus-visible ~ .about-plat__tabs [for="about-plat-android"],
.page-about #about-plat-web:focus-visible ~ .about-plat__tabs [for="about-plat-web"] {
  outline: 2px solid var(--wk-orange);
  outline-offset: 3px;
}
.page-about .about-plat__panel {
  display: none;
}
.page-about #about-plat-ios:checked ~ .about-plat__panels .about-plat__panel--ios,
.page-about #about-plat-android:checked ~ .about-plat__panels .about-plat__panel--android,
.page-about #about-plat-web:checked ~ .about-plat__panels .about-plat__panel--web {
  display: block;
}
.page-about .about-plat__panel {
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--about-hair);
  border-radius: var(--wk-radius);
  background: rgba(21, 24, 31, 0.72);
}
.page-about .about-plat__panel h4 {
  margin: 0 0 10px;
  font-family: var(--wk-font-display);
  font-weight: 600;
  font-size: 17px;
  color: var(--wk-gold-light);
}
.page-about .about-plat__panel p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 244, 247, 0.78);
}

/* ---------- 主题簇 ---------- */
.page-about .about-clusters {
  padding: var(--about-pad) 0;
  background: linear-gradient(180deg, var(--wk-black), var(--wk-night));
}
.page-about .about-clusters__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2.2vw, 24px);
}
.page-about .about-cluster {
  display: block;
  padding: clamp(22px, 3.2vw, 36px);
  text-decoration: none;
  color: var(--wk-paper);
  border: 1px solid var(--about-hair);
  border-radius: 26px 6px 26px 26px;
  background: rgba(14, 15, 18, 0.82);
  transition: transform 0.35s var(--wk-ease), border-color 0.35s var(--wk-ease);
}
.page-about .about-cluster--a {
  background: linear-gradient(158deg, rgba(201, 162, 39, 0.2), rgba(14, 15, 18, 0.94) 62%);
}
.page-about .about-cluster--b {
  background: linear-gradient(158deg, rgba(91, 107, 122, 0.2), rgba(21, 24, 31, 0.94) 62%);
  border-radius: 6px 26px 26px 26px;
}
.page-about .about-cluster--c {
  background: linear-gradient(158deg, rgba(255, 107, 44, 0.16), rgba(14, 15, 18, 0.94) 60%);
  border-radius: 26px 26px 6px 26px;
}
.page-about .about-cluster:hover,
.page-about .about-cluster:focus-visible {
  transform: translateY(-4px);
  border-color: var(--wk-line);
}
.page-about .about-cluster__no {
  display: block;
  margin-bottom: 18px;
  font-family: var(--wk-font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--wk-gold);
}
.page-about .about-cluster h3 {
  margin: 0 0 12px;
  font-family: var(--wk-font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: -0.01em;
  color: var(--wk-paper);
}
.page-about .about-cluster p {
  margin: 0 0 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(242, 244, 247, 0.74);
}
.page-about .about-cluster__go {
  display: inline-block;
  font-family: var(--wk-font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--wk-orange);
}
.page-about .about-cluster:hover .about-cluster__go {
  color: var(--wk-orange-glow);
}

/* ---------- 发布流程 ---------- */
.page-about .about-process {
  padding: var(--about-pad) 0;
  background: var(--wk-black);
}
.page-about .about-process__lead {
  margin: 0 0 clamp(28px, 4vw, 46px);
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--wk-slate);
}
.page-about .about-process__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.page-about .about-process__step {
  position: relative;
  padding: 22px 0 22px 0;
  border-top: 1px solid var(--about-hair);
}
.page-about .about-process__no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--wk-font-mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--wk-gold-dim);
}
.page-about .about-process__step h3 {
  margin: 0 0 8px;
  font-family: var(--wk-font-display);
  font-weight: 600;
  font-size: 17px;
  color: var(--wk-paper);
}
.page-about .about-process__step p {
  margin: 0;
  max-width: 40ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--wk-slate);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding: var(--about-pad) 0;
  background: linear-gradient(180deg, var(--wk-black), var(--wk-night) 55%, var(--wk-black));
}
.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 60px);
  align-items: start;
}
.page-about .about-role {
  padding: 0 0 20px 22px;
  margin-bottom: 20px;
  border-left: 2px solid var(--about-hair);
  transition: border-color 0.3s var(--wk-ease);
}
.page-about .about-role:last-child {
  margin-bottom: 0;
}
.page-about .about-role:hover {
  border-left-color: var(--wk-gold);
}
.page-about .about-role__no {
  display: block;
  margin-bottom: 6px;
  font-family: var(--wk-font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--wk-gold);
}
.page-about .about-role h3 {
  margin: 0 0 8px;
  font-family: var(--wk-font-display);
  font-weight: 600;
  font-size: 19px;
  color: var(--wk-paper);
}
.page-about .about-role p {
  margin: 0;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--wk-slate);
}
.page-about .about-rhythm {
  padding: clamp(22px, 3.2vw, 34px);
  border: 1px solid var(--about-hair);
  border-radius: var(--wk-radius-lg);
  background: rgba(14, 15, 18, 0.7);
}
.page-about .about-rhythm__title {
  margin: 0 0 20px;
  font-family: var(--wk-font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--wk-gold-light);
}
.page-about .about-rhythm__row {
  padding: 16px 0;
  border-top: 1px solid rgba(91, 107, 122, 0.24);
}
.page-about .about-rhythm__row:first-of-type {
  border-top: 0;
  padding-top: 0;
}
.page-about .about-rhythm__key {
  display: block;
  margin-bottom: 6px;
  font-family: var(--wk-font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--wk-orange);
}
.page-about .about-rhythm__row p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(242, 244, 247, 0.76);
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  padding: clamp(44px, 7vw, 92px) 0 clamp(56px, 8vw, 110px);
  background: var(--wk-black);
}
.page-about .about-next__title {
  margin: 0 0 clamp(22px, 3.4vw, 34px);
  font-family: var(--wk-font-display);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 30px);
  letter-spacing: -0.01em;
  color: var(--wk-paper);
}
.page-about .about-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.page-about .about-next__list li {
  border-top: 1px solid var(--about-hair);
}
.page-about .about-next__list a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
  padding: 20px 0;
  text-decoration: none;
  color: var(--wk-paper);
  transition: color 0.25s var(--wk-ease), padding-left 0.25s var(--wk-ease);
}
.page-about .about-next__list a:hover,
.page-about .about-next__list a:focus-visible {
  color: var(--wk-gold-light);
  padding-left: 10px;
}
.page-about .about-next__no {
  font-family: var(--wk-font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--wk-gold);
}
.page-about .about-next__hint {
  font-family: var(--wk-font-body);
  font-size: 14px;
  color: var(--wk-slate);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-process__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 48px);
  }
  .page-about .about-reach__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
  .page-about .about-reach__stats li {
    flex-direction: column;
    gap: 10px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  }
  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
  .page-about .about-clusters__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }
  .page-about .about-cluster--b {
    margin-top: 44px;
  }
  .page-about .about-cluster--c {
    margin-top: 16px;
  }
}

@media (min-width: 980px) {
  .page-about .about-timeline__body {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    column-gap: clamp(36px, 5vw, 76px);
  }
  .page-about .about-timeline__art {
    position: sticky;
    top: 104px;
  }
  .page-about .about-process__steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .page-about .about-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 56px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-draw] {
    animation: none;
    transform: none;
  }
  .page-about .about-cluster,
  .page-about .about-timeline__card,
  .page-about .about-next__list a {
    transition: none;
  }
  .page-about .about-cluster:hover,
  .page-about .about-cluster:focus-visible {
    transform: none;
  }
  .page-about .about-timeline__item:hover .about-timeline__card {
    transform: none;
  }
}