.page-about {
  --about-rail: 224px;
  --about-rail-top: 104px;
  --about-step-gap: 28px;
  background: var(--bg);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(24px, 4vw, 44px) 0 clamp(30px, 4.5vw, 52px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 96% at 6% 0%, rgba(200, 16, 46, 0.30), rgba(10, 12, 16, 0) 62%),
    radial-gradient(90% 84% at 94% 8%, rgba(47, 155, 255, 0.20), rgba(10, 12, 16, 0) 64%);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(34%, 380px);
  background: repeating-linear-gradient(118deg, rgba(200, 16, 46, 0.95) 0 8px, rgba(200, 16, 46, 0) 8px 24px);
  opacity: 0.16;
  pointer-events: none;
}

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

.page-about .about-hero h1 {
  max-width: 22ch;
  margin: 12px 0 0;
}

.page-about .about-lede {
  max-width: 68ch;
  margin: clamp(16px, 2vw, 24px) 0 0;
  font-size: clamp(15px, 0.5vw + 14px, 18px);
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 首屏数据条 ---------- */
.page-about .about-stats {
  list-style: none;
  margin: clamp(24px, 3.2vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  clip-path: var(--clip-cut);
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(14px, 2vw, 20px);
  background: var(--panel);
}

.page-about .about-stat-value {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.05;
  color: var(--white);
}

.page-about .about-stat-value em {
  font-style: normal;
  color: var(--blue);
}

.page-about .about-stat-label {
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  color: var(--muted);
}

/* ---------- 正文骨架：侧栏锚点 + 单列长文 ---------- */
.page-about .about-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  padding: clamp(26px, 4vw, 52px) 0 clamp(48px, 7vw, 96px);
}

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

.page-about .about-rail-title {
  margin: 0 0 12px;
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-about .about-rail-list {
  display: grid;
  gap: 1px;
}

.page-about .about-rail-link {
  position: relative;
  display: block;
  padding: 8px 8px 8px 16px;
  font-size: var(--fs-sm);
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--ease), background-color var(--ease);
}

.page-about .about-rail-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  bottom: 9px;
  width: 2px;
  background: var(--line-hi);
  transition: background-color var(--ease);
}

.page-about .about-rail-link:hover,
.page-about .about-rail-link:focus-visible {
  color: var(--white);
  background-color: rgba(47, 155, 255, 0.09);
}

.page-about .about-rail-link:hover::before,
.page-about .about-rail-link:focus-visible::before {
  background: var(--blue);
}

/* ---------- 章节 ---------- */
.page-about .about-flow > .about-sec + .about-sec {
  margin-top: clamp(30px, 4.5vw, 60px);
  padding-top: clamp(30px, 4.5vw, 60px);
  border-top: 1px solid var(--line);
}

.page-about .about-sec {
  scroll-margin-top: 96px;
}

.page-about .about-sec-head h2 {
  margin: 10px 0 0;
  max-width: 24ch;
}

.page-about .about-sec p {
  max-width: 68ch;
  margin: 16px 0 0;
  font-size: clamp(15px, 0.4vw + 14px, 17px);
  line-height: 1.85;
  color: var(--ink);
}

.page-about .about-sec p a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 六类赛事 ---------- */
.page-about .about-sports {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  clip-path: var(--clip-cut);
}

.page-about .about-sport {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 12px;
  padding: 14px 16px;
  background: var(--panel);
}

.page-about .about-sport-num {
  font-size: var(--fs-xs);
  color: var(--blue);
  letter-spacing: 0.08em;
}

.page-about .about-sport-name {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--white);
}

.page-about .about-sport-desc {
  grid-column: 2;
  margin: 0;
  max-width: 46ch;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: clamp(24px, 3vw, 36px) 0 0;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: var(--clip-cut);
  overflow: hidden;
}

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

.page-about .about-figure figcaption {
  padding: 11px 16px;
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* ---------- 团队环形分布 ---------- */
.page-about .about-ring {
  position: relative;
  width: 100%;
  margin: clamp(24px, 3vw, 36px) 0 0;
  display: grid;
  gap: 10px;
}

.page-about .about-ring::before,
.page-about .about-ring::after {
  content: none;
}

.page-about .about-role {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  clip-path: var(--clip-cut-sm);
  padding: 12px 14px;
  transition: border-color var(--ease), background-color var(--ease);
}

.page-about .about-role:hover {
  border-color: var(--line-hi);
  border-left-color: var(--blue);
  background: var(--panel-hi);
}

.page-about .about-role-num {
  display: block;
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  color: var(--blue);
}

.page-about .about-role-name {
  margin: 6px 0 0;
  font-size: var(--fs-md);
  color: var(--white);
}

.page-about .about-role-desc {
  margin: 8px 0 0;
  font-size: var(--fs-sm);
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 三道流程 ---------- */
.page-about .about-steps {
  list-style: none;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .about-step {
  position: relative;
  padding: 18px 20px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  clip-path: var(--clip-cut);
}

.page-about .about-step-num {
  display: inline-block;
  margin-bottom: 10px;
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  color: var(--blue);
}

.page-about .about-step-title {
  margin: 0;
  font-size: var(--fs-md);
  color: var(--white);
}

.page-about .about-step p {
  max-width: none;
  margin: 10px 0 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-step-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-about .about-step-list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-xs);
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-step-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 9px;
  height: 1px;
  background: var(--green);
}

.page-about .about-refresh {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 18px;
  padding: 14px 18px;
  background: linear-gradient(90deg, rgba(200, 16, 46, 0.18), rgba(47, 155, 255, 0.12));
  border-left: 3px solid var(--green);
  clip-path: var(--clip-cut-sm);
}

.page-about .about-refresh p {
  margin: 0;
  max-width: 68ch;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 赛季里程碑时间轴 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
}

.page-about .about-ms {
  position: relative;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: clamp(22px, 3vw, 32px);
}

.page-about .about-ms::before {
  content: "";
  position: absolute;
  left: 26px;
  top: 54px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--line-hi), rgba(38, 43, 52, 0.15));
}

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

.page-about .about-ms:last-child::before {
  content: none;
}

.page-about .about-ms-index {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  background: var(--panel);
  border: 1px solid var(--line-hi);
  clip-path: var(--clip-cut-sm);
  font-size: var(--fs-sm);
  color: var(--blue);
  letter-spacing: 0.06em;
  transition: border-color var(--ease), color var(--ease);
}

.page-about .about-ms:hover .about-ms-index {
  border-color: var(--blue);
  color: var(--white);
}

.page-about .about-ms-body {
  padding-top: 4px;
}

.page-about .about-ms-title {
  margin: 0;
  font-size: var(--fs-md);
  color: var(--white);
}

.page-about .about-ms-body p {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: var(--fs-sm);
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 加入我们 ---------- */
.page-about .about-sec.about-join {
  padding: clamp(22px, 3vw, 34px);
  background: linear-gradient(140deg, rgba(200, 16, 46, 0.20), rgba(47, 155, 255, 0.12) 58%, rgba(20, 23, 29, 0.6));
  border-left: 3px solid var(--red);
  clip-path: var(--clip-cut);
}

.page-about .about-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 800px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .about-ring {
    display: block;
    width: min(100%, 520px);
    aspect-ratio: 1 / 1;
    margin: clamp(26px, 3vw, 40px) auto 0;
  }

  .page-about .about-ring::before {
    content: "";
    position: absolute;
    inset: 14%;
    border: 1px dashed var(--line-hi);
    border-radius: 50%;
  }

  .page-about .about-ring::after {
    content: "";
    position: absolute;
    inset: 32%;
    border-radius: 50%;
    border: 1px solid rgba(47, 155, 255, 0.28);
    background: radial-gradient(circle at 50% 50%, rgba(47, 155, 255, 0.18), rgba(10, 12, 16, 0) 72%);
  }

  .page-about .about-role {
    position: absolute;
    width: 42%;
    box-sizing: border-box;
    border-left-width: 1px;
    border-top: 3px solid var(--red);
  }

  .page-about .about-role:nth-child(1) {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about .about-role:nth-child(2) {
    top: 50%;
    right: -4%;
    transform: translateY(-50%);
  }

  .page-about .about-role:nth-child(3) {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about .about-role:nth-child(4) {
    top: 50%;
    left: -4%;
    transform: translateY(-50%);
  }

  .page-about .about-role:hover {
    border-top-color: var(--blue);
  }
}

@media (min-width: 880px) {
  .page-about .about-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--about-step-gap);
  }

  .page-about .about-step + .about-step::after {
    content: "";
    position: absolute;
    top: 44px;
    left: calc(-1 * var(--about-step-gap));
    width: var(--about-step-gap);
    height: 8px;
    background: linear-gradient(90deg, rgba(200, 16, 46, 0.75), rgba(47, 155, 255, 0.85));
    clip-path: polygon(0 40%, 62% 40%, 62% 0, 100% 50%, 62% 100%, 62% 60%, 0 60%);
  }
}

@media (min-width: 1040px) {
  .page-about .about-body {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    column-gap: clamp(36px, 4vw, 72px);
  }

  .page-about .about-rail {
    display: block;
  }

  .page-about .about-rail-inner {
    position: sticky;
    top: var(--about-rail-top);
    border-left: 1px solid var(--line);
    padding-left: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-rail-link,
  .page-about .about-role,
  .page-about .about-ms-index {
    transition: none;
  }
}
<<<END>>>