.page-about {
  display: block;
  background: var(--hs-deep);
  color: var(--hs-silver);
}

.page-about .about-wrap {
  width: 100%;
  max-width: var(--hs-shell);
  margin-inline: auto;
  padding-inline: 20px;
}

@media (min-width: 900px) {
  .page-about .about-wrap {
    padding-inline: 40px;
  }
}

/* ---------- 面包屑后的首屏 ---------- */
.page-about .hs-breadcrumb {
  max-width: var(--hs-shell);
  margin-inline: auto;
  padding: 22px 20px 0;
}

@media (min-width: 900px) {
  .page-about .hs-breadcrumb {
    padding: 26px 40px 0;
  }
}

.page-about .about-hero {
  position: relative;
  padding: 26px 0 52px;
  background:
    radial-gradient(880px 420px at 84% -14%, rgba(255, 106, 26, .18), transparent 64%),
    radial-gradient(620px 340px at 6% 108%, rgba(56, 198, 229, .12), transparent 68%),
    linear-gradient(180deg, var(--hs-deep) 0%, var(--hs-stand) 128%);
}

.page-about .about-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--hs-font-mono);
  font-size: var(--hs-fs-12);
  letter-spacing: .2em;
  color: var(--hs-orange);
}

.page-about .about-rule {
  display: inline-block;
  width: 34px;
  height: 3px;
  border-radius: var(--hs-r-pill);
  background: linear-gradient(90deg, var(--hs-orange), var(--hs-amber));
}

.page-about .about-hero__title {
  margin: 20px 0 0;
  font-family: var(--hs-font-display);
  font-weight: 900;
  font-size: var(--hs-fs-3);
  line-height: 1.14;
  letter-spacing: -.012em;
  color: #fff;
}

@media (min-width: 900px) {
  .page-about .about-hero__title {
    font-size: var(--hs-fs-2);
    line-height: 1.08;
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero__title {
    font-size: var(--hs-fs-1);
  }
}

.page-about .about-hero__lead {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: var(--hs-fs-9);
  line-height: 1.85;
  color: var(--hs-silver);
}

@media (min-width: 900px) {
  .page-about .about-hero__lead {
    font-size: var(--hs-fs-8);
  }
}

.page-about .about-hero__facts {
  margin: 36px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--hs-line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

@media (min-width: 760px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
  }
}

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

.page-about .about-fact__key {
  margin: 0;
  font-family: var(--hs-font-mono);
  font-size: var(--hs-fs-12);
  letter-spacing: .12em;
  color: rgba(199, 210, 220, .6);
}

.page-about .about-fact__val {
  margin: 8px 0 0;
  font-family: var(--hs-font-mono);
  font-weight: 700;
  font-size: var(--hs-fs-6);
  line-height: 1.2;
  color: var(--hs-orange);
}

/* ---------- 章节通用 ---------- */
.page-about .about-section {
  padding: 52px 0;
}

@media (min-width: 900px) {
  .page-about .about-section {
    padding: 78px 0;
  }
}

.page-about .about-section--track {
  background: linear-gradient(180deg, var(--hs-deep) 0%, var(--hs-stand) 210%);
}

.page-about .about-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin-bottom: 26px;
  padding-top: 16px;
  border-top: 2px solid var(--hs-line-strong);
}

.page-about .about-head--spaced {
  margin-top: 56px;
}

@media (min-width: 900px) {
  .page-about .about-head--spaced {
    margin-top: 72px;
  }
}

.page-about .about-head__num {
  font-family: var(--hs-font-mono);
  font-size: var(--hs-fs-12);
  letter-spacing: .18em;
  color: var(--hs-orange);
}

.page-about .about-head__title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--hs-font-display);
  font-weight: 800;
  font-size: var(--hs-fs-5);
  line-height: 1.3;
  color: #fff;
}

@media (min-width: 900px) {
  .page-about .about-head__title {
    font-size: var(--hs-fs-4);
  }
}

.page-about .about-head__meta {
  font-family: var(--hs-font-mono);
  font-size: var(--hs-fs-12);
  letter-spacing: .1em;
  color: rgba(199, 210, 220, .58);
}

.page-about .about-lead-line {
  margin: 0 0 30px;
  max-width: 60ch;
  font-size: var(--hs-fs-9);
  line-height: 1.8;
  color: rgba(199, 210, 220, .82);
}

/* ---------- 左窄右宽双栏 ---------- */
.page-about .about-cols {
  display: grid;
  gap: 28px;
}

@media (min-width: 900px) {
  .page-about .about-cols {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }
}

.page-about .about-side {
  font-family: var(--hs-font-mono);
  font-size: var(--hs-fs-12);
  line-height: 1.9;
}

.page-about .about-side__row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--hs-line);
}

.page-about .about-side__key {
  flex: 0 0 auto;
  min-width: 5.5em;
  color: rgba(199, 210, 220, .5);
  letter-spacing: .06em;
}

.page-about .about-side__val {
  flex: 1 1 auto;
  min-width: 0;
  color: var(--hs-silver);
}

.page-about .about-prose p {
  margin: 0 0 1.15em;
  font-size: var(--hs-fs-9);
  line-height: 1.9;
  color: var(--hs-silver);
}

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

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: 32px 0 0;
}

.page-about .about-figure--wide {
  margin-top: 42px;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--hs-r-md);
  object-fit: cover;
  box-shadow: var(--hs-shadow-1);
}

.page-about .about-figure figcaption {
  margin-top: 12px;
  font-family: var(--hs-font-mono);
  font-size: var(--hs-fs-12);
  line-height: 1.7;
  color: rgba(199, 210, 220, .58);
}

/* ---------- 赛季赛道时间轴 ---------- */
.page-about .about-track {
  display: grid;
  gap: 26px;
}

@media (min-width: 760px) {
  .page-about .about-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 28px;
  }
}

@media (min-width: 1120px) {
  .page-about .about-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .about-season {
  position: relative;
  min-width: 0;
  padding-top: 26px;
  border-top: 2px solid var(--hs-line-strong);
}

.page-about .about-season::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--hs-orange);
  box-shadow: 0 0 0 5px rgba(255, 106, 26, .16);
}

.page-about .about-season[open]::before {
  background: var(--hs-green);
  box-shadow: 0 0 0 5px rgba(46, 212, 122, .16);
}

.page-about .about-season summary {
  display: block;
  list-style: none;
  cursor: pointer;
}

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

.page-about .about-season__phase {
  display: block;
  font-family: var(--hs-font-mono);
  font-size: var(--hs-fs-12);
  letter-spacing: .14em;
  color: var(--hs-orange);
}

.page-about .about-season[open] .about-season__phase {
  color: var(--hs-green);
}

.page-about .about-season__name {
  display: block;
  margin-top: 7px;
  font-family: var(--hs-font-display);
  font-size: var(--hs-fs-7);
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
}

.page-about .about-season__name::after {
  content: "＋";
  margin-left: 8px;
  font-family: var(--hs-font-mono);
  font-size: var(--hs-fs-11);
  color: var(--hs-orange);
}

.page-about .about-season[open] .about-season__name::after {
  content: "－";
  color: var(--hs-green);
}

.page-about .about-season__body {
  margin-top: 12px;
  font-size: var(--hs-fs-11);
  line-height: 1.8;
  color: rgba(199, 210, 220, .8);
}

.page-about .about-season__body p {
  margin: 0 0 8px;
}

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

/* ---------- 深色带：团队与流程 ---------- */
.page-about .about-belt {
  position: relative;
  padding: 56px 0 64px;
  background: linear-gradient(155deg, var(--hs-stand) 0%, var(--hs-indigo) 58%, var(--hs-wine) 100%);
}

.page-about .about-belt::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -46px;
  height: 48px;
  background: var(--hs-deep);
  clip-path: polygon(0 0, 100% 0, 100% 0, 0 100%);
  pointer-events: none;
}

@media (min-width: 900px) {
  .page-about .about-belt {
    padding: 76px 0 84px;
  }

  .page-about .about-belt::before {
    top: -60px;
    height: 62px;
  }
}

.page-about .about-side--dark .about-side__row {
  border-bottom-color: rgba(199, 210, 220, .22);
}

.page-about .about-side--dark .about-side__key {
  color: rgba(199, 210, 220, .58);
}

.page-about .about-crew {
  display: grid;
  gap: 14px;
  margin: 34px 0 0;
}

@media (min-width: 640px) {
  .page-about .about-crew {
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  }
}

.page-about .about-crew__card {
  padding: 22px 18px;
  border-radius: var(--hs-r-md);
  background: rgba(6, 23, 36, .5);
  transition: background var(--hs-dur) var(--hs-ease), transform var(--hs-dur) var(--hs-ease);
}

.page-about .about-crew__card:hover,
.page-about .about-crew__card:focus-within {
  background: rgba(6, 23, 36, .8);
  transform: translateY(-3px);
}

.page-about .about-crew__num {
  margin: 0;
  font-family: var(--hs-font-mono);
  font-weight: 700;
  font-size: var(--hs-fs-3);
  line-height: 1;
  color: var(--hs-orange);
}

.page-about .about-crew__unit {
  margin-left: 5px;
  font-size: var(--hs-fs-12);
  font-weight: 400;
  color: var(--hs-silver);
}

.page-about .about-crew__label {
  margin: 12px 0 0;
  font-size: var(--hs-fs-10);
  font-weight: 700;
  color: #fff;
}

.page-about .about-crew__more {
  margin: 8px 0 0;
  font-size: var(--hs-fs-12);
  line-height: 1.75;
  color: rgba(199, 210, 220, .68);
  transition: color var(--hs-dur) var(--hs-ease);
}

.page-about .about-crew__card:hover .about-crew__more,
.page-about .about-crew__card:focus-within .about-crew__more {
  color: var(--hs-silver);
}

/* ---------- 校验步骤 ---------- */
.page-about .about-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
  counter-reset: chk;
}

.page-about .about-steps__item {
  position: relative;
  padding: 18px 18px 18px 62px;
  border-radius: var(--hs-r-sm);
  background: rgba(6, 23, 36, .42);
  counter-increment: chk;
}

.page-about .about-steps__item::before {
  content: counter(chk, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 18px;
  font-family: var(--hs-font-mono);
  font-size: var(--hs-fs-6);
  font-weight: 700;
  line-height: 1;
  color: var(--hs-green);
}

.page-about .about-steps__name {
  margin: 0;
  font-size: var(--hs-fs-10);
  font-weight: 700;
  color: #fff;
}

.page-about .about-steps__desc {
  margin: 7px 0 0;
  font-size: var(--hs-fs-11);
  line-height: 1.85;
  color: rgba(199, 210, 220, .8);
}

.page-about .about-note-line {
  margin: 24px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--hs-cyan);
  font-size: var(--hs-fs-11);
  line-height: 1.85;
  color: rgba(199, 210, 220, .78);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partner-figure {
  display: grid;
  gap: 28px;
  margin-top: 36px;
}

@media (min-width: 980px) {
  .page-about .about-partner-figure {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 48px;
    align-items: start;
  }

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

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

.page-about .about-partners__item {
  display: flex;
  gap: 16px;
  padding: 20px;
  border-radius: var(--hs-r-md);
  border-left: 3px solid var(--hs-cyan);
  background: rgba(27, 42, 84, .34);
}

.page-about .about-partners__item--orange {
  border-left-color: var(--hs-orange);
}

.page-about .about-partners__num {
  flex: 0 0 auto;
  font-family: var(--hs-font-mono);
  font-size: var(--hs-fs-4);
  font-weight: 700;
  line-height: 1;
  color: var(--hs-cyan);
}

.page-about .about-partners__item--orange .about-partners__num {
  color: var(--hs-orange);
}

.page-about .about-partners__name {
  margin: 0;
  font-size: var(--hs-fs-10);
  font-weight: 700;
  color: #fff;
}

.page-about .about-partners__desc {
  margin: 8px 0 0;
  font-size: var(--hs-fs-11);
  line-height: 1.8;
  color: rgba(199, 210, 220, .8);
}

/* ---------- 数字回应 ---------- */
.page-about .about-numbers {
  position: relative;
  padding: 56px 0 68px;
  background:
    radial-gradient(720px 340px at 10% -6%, rgba(46, 212, 122, .1), transparent 62%),
    radial-gradient(640px 320px at 92% 108%, rgba(255, 106, 26, .14), transparent 64%),
    linear-gradient(180deg, var(--hs-deep) 0%, var(--hs-stand) 130%);
}

@media (min-width: 900px) {
  .page-about .about-numbers {
    padding: 78px 0 88px;
  }
}

.page-about .about-numbers__grid {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 620px) {
  .page-about .about-numbers__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-about .about-numbers__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 30px;
  }
}

.page-about .about-stat {
  min-width: 0;
  padding-top: 18px;
  border-top: 2px solid rgba(255, 106, 26, .5);
}

.page-about .about-stat__num {
  margin: 0;
  font-family: var(--hs-font-mono);
  font-weight: 700;
  font-size: var(--hs-fs-3);
  line-height: 1.05;
  color: #fff;
  word-break: break-word;
}

.page-about .about-stat__unit {
  margin-left: 6px;
  font-size: var(--hs-fs-7);
  font-weight: 400;
  color: var(--hs-orange);
}

.page-about .about-stat__note {
  margin: 12px 0 0;
  font-size: var(--hs-fs-11);
  line-height: 1.8;
  color: rgba(199, 210, 220, .78);
}

.page-about .about-numbers__line {
  margin: 34px 0 0;
  max-width: 62ch;
  font-size: var(--hs-fs-9);
  line-height: 1.85;
  color: var(--hs-silver);
}

.page-about .about-cta {
  margin-top: 34px;
  padding: 26px 22px;
  border-radius: var(--hs-r-lg);
  background: linear-gradient(120deg, rgba(255, 106, 26, .16), rgba(56, 198, 229, .12));
  border: 1px solid var(--hs-line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

@media (min-width: 900px) {
  .page-about .about-cta {
    padding: 30px 32px;
  }
}

.page-about .about-cta__text {
  margin: 0;
  flex: 1 1 260px;
  min-width: 0;
  font-size: var(--hs-fs-10);
  line-height: 1.8;
  color: var(--hs-silver);
}

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

.page-about .about-cta__actions .hs-btn {
  white-space: nowrap;
}

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

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