.page-about {
  --about-edge: rgba(57, 255, 136, 0.42);
  --about-panel: rgba(16, 27, 58, 0.72);
  --about-gap: clamp(20px, 3vw, 34px);
}

/* 首屏 */
.page-about .about-hero {
  position: relative;
  padding: clamp(24px, 4vw, 44px) 0 clamp(30px, 5vw, 62px);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  left: -18%;
  width: 78%;
  height: 132%;
  background: radial-gradient(closest-side, rgba(57, 255, 136, 0.13), transparent 72%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -30%;
  width: 46%;
  height: 90%;
  background: radial-gradient(closest-side, rgba(255, 107, 53, 0.10), transparent 70%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.page-about .about-hero__title {
  margin: 16px 0 0;
  font-size: clamp(29px, 5.6vw, 56px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--neon);
}

.page-about .about-hero__lede {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
  color: var(--text);
}

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

.page-about .about-hero__stats {
  list-style: none;
  margin: 32px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 14px;
}

.page-about .about-hero__stats .stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* 图片容器 */
.page-about .about-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--r-l);
  border: 1px solid var(--line);
  background: var(--ink-800);
  box-shadow: var(--shadow);
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-figure figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px 16px 12px;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--white);
  background: linear-gradient(to top, rgba(10, 17, 40, 0.94), rgba(10, 17, 40, 0));
}

.page-about .about-figure--hero {
  border-radius: var(--r-xl);
}

/* 侧栏 + 正文骨架 */
.page-about .about-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: start;
  padding-top: clamp(28px, 4vw, 52px);
  padding-bottom: clamp(44px, 6vw, 88px);
}

.page-about .about-index {
  border-left: 2px solid var(--line-strong);
  padding-left: 14px;
}

.page-about .about-index__kicker {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-about .about-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-about .about-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 11px;
  border-radius: var(--r-s);
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-index__link .mono {
  font-size: 11px;
  color: var(--mute);
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  color: var(--white);
  background: rgba(57, 255, 136, 0.07);
}

.page-about .about-index__link[aria-current="true"] {
  color: var(--neon);
  background: var(--neon-dim);
}

.page-about .about-index__link[aria-current="true"] .mono {
  color: var(--neon);
}

/* 章节 */
.page-about .about-section {
  padding-top: clamp(30px, 4.5vw, 56px);
  scroll-margin-top: calc(var(--hdr-h) + 24px);
}

.page-about .about-section:first-child {
  padding-top: 0;
}

.page-about .about-section + .about-section {
  margin-top: clamp(30px, 4.5vw, 56px);
  border-top: 1px solid var(--line);
}

.page-about .about-section__eyebrow {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-about .about-section__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.26;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .about-text p {
  margin: 16px 0 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text);
}

/* 三张能力卡 */
.page-about .about-cards {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .about-card {
  position: relative;
  padding: 22px 20px 20px 24px;
  border-radius: var(--r-l);
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(22, 36, 77, 0.92), var(--about-panel));
  overflow: hidden;
}

.page-about .about-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--neon);
}

.page-about .about-card:nth-child(2)::before {
  background: var(--orange);
}

.page-about .about-card:nth-child(3)::before {
  background: var(--elec);
}

.page-about .about-card__idx {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mute);
}

.page-about .about-card__title {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-card__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* 赛季刻度 */
.page-about .about-seasons {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.page-about .about-seasons__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 12px;
  border-radius: var(--r-m);
  border: 1px solid var(--line);
  border-top: 2px solid var(--line-strong);
  background: var(--ink-800);
}

.page-about .about-seasons__item:last-child {
  border-top-color: var(--neon);
}

.page-about .about-seasons__num {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mute);
}

.page-about .about-seasons__label {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-figure--axis {
  margin-top: 24px;
  box-shadow: none;
}

.page-about .about-dims {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* 更新流程 */
.page-about .about-layout {
  margin-top: 22px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.page-about .about-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--r-m);
  background: rgba(16, 27, 58, 0.66);
  border: 1px solid var(--line);
}

.page-about .about-steps__num {
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
}

.page-about .about-steps__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-steps__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-about .about-figure--side {
  box-shadow: none;
}

/* 团队 */
.page-about .about-team {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .about-team__item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px;
  border-radius: var(--r-l);
  border: 1px solid var(--line);
  border-bottom: 3px solid rgba(138, 148, 166, 0.34);
  background: var(--about-panel);
}

.page-about .about-team__item:nth-child(1) {
  border-bottom-color: var(--neon);
}

.page-about .about-team__item:nth-child(2) {
  border-bottom-color: var(--orange);
}

.page-about .about-team__item:nth-child(3) {
  border-bottom-color: var(--elec);
}

.page-about .about-team__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-team__text {
  margin: 0;
  flex: 1;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-about .about-team__item .tag {
  align-self: flex-start;
}

.page-about .about-partners {
  margin-top: 22px;
  padding: 20px 22px;
  border-radius: var(--r-l);
  border: 1px dashed var(--line-strong);
  background: rgba(15, 42, 46, 0.42);
}

.page-about .about-partners__title {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-about .about-partners__text {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

/* 时间线 */
.page-about .about-timeline {
  list-style: none;
  margin: 30px 0 0;
  padding: 0 0 0 24px;
  position: relative;
  display: grid;
  gap: 16px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--neon), rgba(57, 255, 136, 0.06));
}

.page-about .about-timeline__item {
  position: relative;
  padding: 18px 20px;
  border-radius: var(--r-m);
  border: 1px solid var(--line);
  background: rgba(16, 27, 58, 0.55);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease);
}

.page-about .about-timeline__item:hover {
  border-color: var(--about-edge);
  background: rgba(22, 36, 77, 0.82);
  transform: translateX(4px);
}

.page-about .about-timeline__dot {
  position: absolute;
  left: -25px;
  top: 24px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--neon);
}

.page-about .about-timeline__meta {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-about .about-timeline__title {
  margin: 10px 0 0;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-timeline__text {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* 联系 */
.page-about .about-section--contact {
  border-top-color: var(--about-edge);
}

.page-about .about-contact {
  margin-top: 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: end;
}

.page-about .about-contact__panel {
  padding: 22px 22px 20px;
  border-radius: var(--r-l);
  border: 1px solid var(--line);
  border-left: 3px solid var(--neon);
  background: var(--ink-800);
}

.page-about .about-contact__label {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-about .about-contact__line {
  margin: 0 0 10px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-about .about-contact__key {
  flex: 0 0 42px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mute);
}

.page-about .about-contact__val {
  color: var(--white);
  word-break: break-word;
}

.page-about .about-contact__tools {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-about .about-contact__status {
  font-size: 13px;
  color: var(--neon);
}

.page-about .about-contact__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 响应式 */
@media (min-width: 640px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .about-seasons {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-about .about-contact {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 920px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }

  .page-about .about-figure--hero {
    margin-top: 24px;
  }

  .page-about .about-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (min-width: 1040px) {
  .page-about .about-body {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(26px, 3vw, 48px);
  }

  .page-about .about-body__aside {
    position: sticky;
    top: calc(var(--hdr-h) + 26px);
  }

  .page-about .about-index__list {
    display: grid;
    gap: 2px;
  }

  .page-about .about-index__link {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__item,
  .page-about .about-index__link {
    transition: none;
  }

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