.page-about {
  background-color: var(--ink);
  background-image:
    linear-gradient(90deg, rgba(42, 74, 61, 0.22) 1px, transparent 1px),
    linear-gradient(180deg, rgba(42, 74, 61, 0.14) 1px, transparent 1px);
  background-size: 96px 96px;
  background-position: center top;
  color: var(--white);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

.page-about h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
}

.page-about h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.1vw, 23px);
  line-height: 1.34;
  margin: 0 0 8px;
}

.page-about p {
  margin: 0 0 14px;
}

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

.page-about .breadcrumb {
  padding-top: clamp(16px, 3vw, 26px);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-about .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-about .breadcrumb a:hover {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

.page-about .section-head {
  max-width: 62ch;
}

.page-about .kicker {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mint);
  margin-bottom: 10px;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding-bottom: clamp(44px, 7vw, 92px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  padding-top: clamp(20px, 3.6vw, 44px);
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 82px);
  line-height: 1.04;
  letter-spacing: -0.018em;
  margin: 12px 0 0;
  transform: skewX(-3deg);
  transform-origin: left bottom;
}

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

.page-about .about-hero__lead {
  margin-top: clamp(18px, 2.4vw, 26px);
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--muted);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-about .about-hero__figure {
  margin: 0;
  align-self: end;
  position: relative;
}

.page-about .about-hero__figure .figure__frame {
  border: 1px solid var(--line);
  box-shadow: 0 34px 70px -46px rgba(0, 0, 0, 0.95);
}

.page-about .about-hero__figure::before {
  content: "";
  position: absolute;
  inset: 14px -14px -14px 14px;
  border: 1px solid var(--line);
  z-index: -1;
  pointer-events: none;
}

.page-about .about-hero__side-note {
  display: none;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.34em;
  color: var(--line);
  writing-mode: vertical-rl;
  position: absolute;
  right: clamp(6px, 1.2vw, 18px);
  top: 34%;
}

/* ---------- 为什么是赛前十分钟 ---------- */

.page-about .about-why {
  padding-block: clamp(40px, 6vw, 84px);
  border-top: 1px solid var(--hair);
}

.page-about .about-why__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .about-why__body {
  max-width: 62ch;
  color: #d7e8de;
}

.page-about .about-why__note {
  background: var(--glass);
  border: 1px solid var(--line);
  border-left: 3px solid var(--mint);
  padding: clamp(18px, 2.6vw, 28px);
  backdrop-filter: blur(8px);
  transition: border-left-color 0.28s ease, transform 0.28s ease;
}

.page-about .about-why__note:hover {
  border-left-color: var(--cyan);
  transform: translateY(-3px);
}

.page-about .about-why__note blockquote {
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.5;
  color: var(--white);
}

.page-about .about-why__note-foot {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}

/* ---------- 阅读方法 ---------- */

.page-about .about-rhythm {
  padding-block: clamp(40px, 6vw, 84px);
}

.page-about .about-rhythm__intro {
  color: var(--muted);
  max-width: 58ch;
}

.page-about .about-rhythm__list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-about .about-rhythm__item {
  background: var(--ink-soft);
  padding: clamp(20px, 3vw, 32px);
  border-top: 2px solid transparent;
  transition: background-color 0.25s ease;
}

.page-about .about-rhythm__item:hover {
  background: var(--panel);
}

.page-about .about-rhythm__item:nth-child(1) {
  border-top-color: var(--mint);
}

.page-about .about-rhythm__item:nth-child(2) {
  border-top-color: var(--cyan);
}

.page-about .about-rhythm__item:nth-child(3) {
  border-top-color: var(--orange);
}

.page-about .about-rhythm__num {
  display: block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
  margin-bottom: 10px;
}

.page-about .about-rhythm__item p {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
}

/* ---------- 时间线 ---------- */

.page-about .about-timeline {
  padding-block: clamp(44px, 7vw, 92px);
  border-top: 1px solid var(--hair);
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(11, 26, 20, 0.92) 14%,
    rgba(11, 26, 20, 0.92) 86%,
    transparent 100%
  );
}

.page-about .about-timeline__intro {
  color: var(--muted);
  max-width: 56ch;
}

.page-about .about-timeline__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(22px, 3vw, 34px);
}

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

.page-about .about-timeline__figure .figure__frame {
  border: 1px solid var(--line);
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 clamp(22px, 3vw, 28px);
  border-left: 1px solid var(--line);
}

.page-about .about-timeline__node {
  position: relative;
  padding-bottom: clamp(20px, 3vw, 32px);
}

.page-about .about-timeline__node:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__node::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(22px, 3vw, 28px) - 5px);
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--mint);
  transition: background-color 0.25s ease;
}

.page-about .about-timeline__node:hover::before {
  background: var(--mint);
}

.page-about .about-timeline__node .tag {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mint);
  border: 1px solid var(--line);
  padding: 3px 9px;
  margin-bottom: 10px;
}

.page-about .about-timeline__node .tag--signal {
  color: var(--orange);
  border-color: rgba(255, 122, 26, 0.5);
}

.page-about .about-timeline__node p {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
}

/* ---------- 团队 ---------- */

.page-about .about-team {
  padding-block: clamp(40px, 6vw, 84px);
  border-top: 1px solid var(--hair);
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-about .about-team__figure {
  margin: 0;
  order: 2;
}

.page-about .about-team__figure .figure__frame {
  border: 1px solid var(--line);
}

.page-about .about-team__body {
  order: 1;
  max-width: 60ch;
  color: #d7e8de;
}

.page-about .about-team__stats {
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
  margin: clamp(20px, 3vw, 28px) 0 0;
}

.page-about .about-team__stat {
  background: var(--panel);
  padding: 16px 18px;
}

.page-about .about-team__stat dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-about .about-team__stat dd {
  margin: 6px 0 0;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 34px);
  line-height: 1;
  color: var(--mint);
}

/* ---------- 覆盖规模 ---------- */

.page-about .about-scale {
  padding-block: clamp(40px, 6vw, 84px);
}

.page-about .about-scale__intro {
  color: var(--muted);
}

.page-about .about-scale__intro a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 160, 0.45);
}

.page-about .about-scale__intro a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-about .about-scale__bars {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 22px);
}

.page-about .about-scale__bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 4px 14px;
}

.page-about .about-scale__label {
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-about .about-scale__value {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 24px);
  color: var(--white);
  line-height: 1;
}

.page-about .about-scale__track {
  grid-column: 1 / -1;
  display: block;
  height: 6px;
  background: rgba(42, 74, 61, 0.62);
  overflow: hidden;
}

.page-about .about-scale__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--mint), var(--cyan));
  width: 40%;
}

.page-about .about-scale__bar:nth-child(1) .about-scale__fill {
  width: 30%;
}

.page-about .about-scale__bar:nth-child(2) .about-scale__fill {
  width: 78%;
}

.page-about .about-scale__bar:nth-child(3) .about-scale__fill {
  width: 56%;
}

.page-about .about-scale__bar:nth-child(4) .about-scale__fill {
  width: 68%;
}

.page-about .about-scale__bar:nth-child(5) .about-scale__fill {
  width: 44%;
}

.page-about .about-scale__audience {
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
  margin-top: clamp(26px, 4vw, 40px);
}

.page-about .about-scale__card {
  background: rgba(17, 38, 30, 0.72);
  border: 0;
  border-left: 2px solid var(--line);
  padding: clamp(18px, 2.6vw, 26px);
  transition: border-left-color 0.25s ease, background-color 0.25s ease;
}

.page-about .about-scale__card:hover {
  border-left-color: var(--cyan);
  background: rgba(24, 52, 42, 0.85);
}

.page-about .about-scale__card h3 {
  color: var(--white);
}

.page-about .about-scale__card p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

/* ---------- 数据保障 ---------- */

.page-about .about-sources {
  padding-block: clamp(40px, 6vw, 84px);
  border-top: 1px solid var(--hair);
}

.page-about .about-sources__intro {
  color: var(--muted);
}

.page-about .about-sources__grid {
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-about .about-sources__cell {
  background: var(--ink-soft);
  padding: clamp(18px, 2.6vw, 26px);
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-about .about-sources__cell strong {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(26px, 3.6vw, 38px);
  line-height: 1;
  color: var(--mint);
}

.page-about .about-sources__cell span {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-about .about-sources__cell:nth-child(3) strong {
  color: var(--cyan);
}

.page-about .about-sources__note {
  margin-top: clamp(18px, 2.6vw, 26px);
  padding-left: 14px;
  border-left: 2px solid var(--orange);
  max-width: 62ch;
  line-height: 1.8;
}

/* ---------- 收尾 ---------- */

.page-about .about-cta {
  padding-block: clamp(44px, 7vw, 92px);
}

.page-about .about-cta__inner {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--mint);
  padding: clamp(26px, 4.2vw, 54px);
}

.page-about .about-cta__inner::after {
  content: "KAIYUN";
  position: absolute;
  right: -8px;
  bottom: -26px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(58px, 12vw, 138px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: rgba(56, 242, 160, 0.06);
  pointer-events: none;
  user-select: none;
}

.page-about .about-cta__inner h2,
.page-about .about-cta__inner p {
  position: relative;
  z-index: 1;
}

.page-about .about-cta__inner p {
  color: var(--muted);
  max-width: 62ch;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
  position: relative;
  z-index: 1;
}

/* ---------- 响应式 ---------- */

@media (min-width: 600px) {
  .page-about .about-team__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 780px) {
  .page-about .about-rhythm__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
    align-items: end;
  }

  .page-about .about-hero__side-note {
    display: block;
  }

  .page-about .about-why__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
    align-items: start;
  }

  .page-about .about-timeline__grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: center;
  }

  .page-about .about-team__figure {
    order: 1;
  }

  .page-about .about-team__body {
    order: 2;
  }
}

@media (min-width: 980px) {
  .page-about .about-sources__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>