/* ============ 品牌故事页 · page-about ============ */

.page-about {
  --about-rule: rgba(255, 255, 255, .18);
  --about-dim: rgba(255, 255, 255, .64);
  --about-ink-soft: rgba(255, 255, 255, .82);
}

.page-about .section--paper,
.page-about .section--card {
  --about-rule: rgba(36, 28, 22, .16);
  --about-dim: rgba(36, 28, 22, .6);
  --about-ink-soft: rgba(36, 28, 22, .78);
}

/* ---------- 左缘竖直索引 ---------- */

.page-about .season-rail {
  display: none;
}

.page-about .season-rail__link {
  display: block;
  padding: 6px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: rgba(255, 255, 255, .46);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-about .season-rail__link:hover,
.page-about .season-rail__link:focus-visible {
  color: var(--flag-white);
}

.page-about .season-rail__item.is-active .season-rail__link {
  color: var(--flag-yellow);
}

@media (min-width: 1200px) {
  .page-about .season-rail {
    display: block;
    position: fixed;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 30;
    width: 60px;
    padding: 14px 8px 14px 10px;
    background: rgba(11, 27, 51, .84);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 0;
  }

  .page-about .season-rail__label {
    margin: 0 0 10px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: .12em;
    color: rgba(255, 255, 255, .4);
  }

  .page-about .season-rail__list {
    margin: 0;
    padding: 0;
    list-style: none;
  }
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: calc(var(--header-h) + 44px) 0 64px;
  background:
    radial-gradient(120% 90% at 82% -10%, rgba(47, 111, 208, .34), transparent 58%),
    radial-gradient(90% 70% at 6% 100%, rgba(200, 54, 43, .2), transparent 52%),
    var(--ink);
  color: var(--flag-white);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 78%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 78%);
}

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

.page-about .about-hero__title {
  margin: 14px 0 0;
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6vw, 66px);
  line-height: 1.1;
  letter-spacing: -.02em;
}

.page-about .about-hero__lede {
  margin-top: 26px;
  max-width: 46ch;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255, 255, 255, .84);
}

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

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 44px 0 0;
  padding: 24px 0 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, .18);
}

.page-about .about-hero__facts li {
  padding: 14px 0;
}

.page-about .about-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--flag-yellow);
}

.page-about .about-hero__key {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(255, 255, 255, .66);
}

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

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

  .page-about .about-hero__facts li + li {
    padding-left: 26px;
    border-left: 1px solid rgba(255, 255, 255, .18);
  }
}

.page-about .about-hero__figure {
  margin: 60px 0 0;
  border: 1px solid rgba(255, 255, 255, .16);
}

/* ---------- 通用排版件 ---------- */

.page-about .about-h2 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.2;
  letter-spacing: -.02em;
}

.page-about .about-lede {
  margin: 0 0 8px;
  max-width: 52ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--about-ink-soft);
}

.page-about .prose p {
  margin: 0 0 18px;
  max-width: 36ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--about-ink-soft);
}

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

.page-about .media-frame {
  margin: 0;
}

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

.page-about .media-frame__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  line-height: 1.6;
  color: var(--about-dim);
}

.page-about .label-mono {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--about-dim);
}

.page-about .stamp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 62px;
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--flag-white);
  background: var(--flag-blue);
}

.page-about .stamp--red {
  background: var(--flag-red);
}

/* ---------- 起点 ---------- */

.page-about .about-start__grid {
  align-items: start;
  row-gap: 32px;
}

.page-about .about-start__mark {
  padding-top: 6px;
}

.page-about .contour-divider {
  margin-top: 56px;
  color: rgba(255, 255, 255, .26);
}

.page-about .contour-divider svg {
  display: block;
  width: 100%;
  height: 56px;
}

/* ---------- 团队 ---------- */

.page-about .about-team__grid {
  row-gap: 44px;
}

.page-about .team-roster {
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .team-roster__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  padding: 22px 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .team-roster__item:last-child {
  border-bottom: 1px solid var(--about-rule);
}

.page-about .team-roster__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--flag-red);
  padding-top: 3px;
}

.page-about .team-roster__name {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  letter-spacing: -.01em;
}

.page-about .team-roster__text p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--about-ink-soft);
}

/* ---------- 校对 ---------- */

.page-about .about-proof__grid {
  row-gap: 32px;
  align-items: start;
}

.page-about .about-proof__lead .stamp {
  margin-bottom: 20px;
}

.page-about .about-quote {
  margin: 36px 0 0;
  padding: 4px 0 4px 26px;
  border-left: 3px solid var(--flag-red);
}

.page-about .about-quote__text {
  margin: 0;
  max-width: 30ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.45;
  letter-spacing: -.01em;
  color: var(--flag-white);
}

.page-about .about-proof__link {
  margin: 28px 0 0;
}

/* ---------- 友谊赛 ---------- */

.page-about .about-friendlies__grid {
  row-gap: 36px;
  align-items: start;
}

.page-about .about-friendlies__mark .stamp {
  margin-bottom: 18px;
}

.page-about .about-stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin: 28px 0 0;
}

.page-about .about-stat dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--about-dim);
}

.page-about .about-stat dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--flag-yellow);
}

.page-about .section--paper .about-stat dd,
.page-about .section--card .about-stat dd {
  color: var(--flag-red);
}

/* ---------- 合作生态 ---------- */

.page-about .about-partners__grid {
  margin-top: 40px;
  gap: 36px 32px;
}

.page-about .partner-card {
  padding-top: 22px;
  border-top: 2px solid var(--flag-red);
}

.page-about .partner-card:nth-child(2) {
  border-top-color: var(--flag-green);
}

.page-about .partner-card:nth-child(3) {
  border-top-color: var(--flag-blue);
}

.page-about .partner-card__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(38px, 5vw, 54px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--brown);
}

.page-about .partner-card__name {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: -.01em;
  color: var(--brown);
}

.page-about .partner-card__desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(36, 28, 22, .74);
}

/* ---------- 版本演进 ---------- */

.page-about .version-track {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 44px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .version-track__item {
  position: relative;
  padding: 26px 0 26px 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .version-track__item::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--flag-red);
}

.page-about .version-track__id {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--flag-yellow);
}

.page-about .version-track__name {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -.01em;
}

.page-about .version-track__item p {
  margin: 0;
  max-width: 30ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--about-ink-soft);
}

@media (min-width: 880px) {
  .page-about .version-track {
    grid-template-columns: repeat(4, 1fr);
    gap: 0 28px;
  }

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

.page-about .about-versions__figure {
  margin-top: 56px;
  border: 1px solid var(--about-rule);
}

/* ---------- 服务范围与联系 ---------- */

.page-about .about-service__grid {
  row-gap: 48px;
  align-items: start;
}

.page-about .about-service__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.page-about .contact-block {
  margin: 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .contact-block__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--about-rule);
}

@media (min-width: 560px) {
  .page-about .contact-block__row {
    grid-template-columns: 132px 1fr;
    gap: 22px;
    align-items: baseline;
  }
}

.page-about .contact-block__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--about-dim);
}

.page-about .contact-block__val {
  margin: 0;
  font-size: 17px;
  line-height: 1.6;
  color: var(--brown);
  word-break: break-word;
}

.page-about .contact-block__val--mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

.page-about .about-service__note {
  margin: 22px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(36, 28, 22, .66);
}

/* ---------- 窄屏兜底 ---------- */

@media (max-width: 759px) {
  .page-about .about-hero {
    padding-top: calc(var(--header-h) + 28px);
  }

  .page-about .about-hero__lede,
  .page-about .prose p,
  .page-about .about-lede {
    max-width: 100%;
  }

  .page-about .team-roster__item {
    grid-template-columns: 32px 1fr;
    gap: 12px;
  }

  .page-about .about-hero__num {
    font-size: 26px;
  }
}
<<<END>>>