.page-about {
  --about-line: rgba(95, 242, 208, 0.16);
  --about-line-strong: rgba(95, 242, 208, 0.38);
  --about-orange-line: rgba(255, 138, 61, 0.3);
  color: var(--white);
}

/* ---------- 通用页面级排版 ---------- */
.page-about .section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4.6vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 6px 0 14px;
  max-width: 22ch;
}

.page-about .about-hero__inner,
.page-about .about-audience__main,
.page-about .about-flow__main {
  min-width: 0;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(34px, 6vw, 76px) 0 clamp(28px, 4.5vw, 56px);
  border-bottom: 1px solid var(--about-line);
  background:
    radial-gradient(115% 85% at 8% 0%, rgba(95, 242, 208, 0.11), transparent 62%),
    radial-gradient(70% 60% at 100% 8%, rgba(255, 138, 61, 0.08), transparent 66%);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -22%;
  top: 10%;
  width: min(540px, 74vw);
  aspect-ratio: 1 / 1;
  border: 1px solid var(--about-line);
  border-radius: 50%;
  pointer-events: none;
}

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

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(29px, 7vw, 64px);
  line-height: 1.06;
  letter-spacing: -0.028em;
  margin: 10px 0 16px;
  max-width: 17ch;
}

.page-about .about-hero__lead {
  max-width: 58ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-hero__stats {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__stats li {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-about .about-hero__stats .mono {
  font-size: 19px;
  color: var(--cyan);
  letter-spacing: 0.04em;
  border-left: 2px solid var(--cyan);
  padding-left: 10px;
}

/* ---------- 服务对象 ---------- */
.page-about .about-audience__grid {
  align-items: start;
}

.page-about .about-audience__text {
  max-width: 56ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

.page-about .about-audience__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-audience__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-audience__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

.page-about .about-audience__list strong {
  color: var(--white);
  font-weight: 700;
}

.page-about .about-audience__card {
  display: grid;
  gap: 12px;
  padding: 20px;
}

.page-about .about-audience__card-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
  margin: 0;
}

.page-about .about-audience__card-line {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 运营历程 ---------- */
.page-about .about-journey {
  border-top: 1px solid var(--about-line);
}

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

.page-about .about-journey__lead {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .about-journey__media {
  margin: 26px 0 36px;
}

.page-about .about-journey__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about .about-journey .log-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 6px 0 6px 34px;
}

.page-about .about-journey .log-list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg,
    var(--cyan) 0%,
    rgba(95, 242, 208, 0.35) 40%,
    rgba(95, 242, 208, 0.08) 100%);
}

.page-about .about-journey .log-item {
  position: relative;
  padding: 0 0 30px;
}

.page-about .about-journey .log-item:last-of-type {
  padding-bottom: 0;
}

.page-about .about-journey .log-item:first-of-type {
  padding-top: 0;
}

.page-about .about-journey .log-node {
  position: absolute;
  left: -34px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--muted);
  transition: background-color 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.page-about .about-journey .log-item.is-in .log-node {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 0 6px rgba(95, 242, 208, 0.13);
}

.page-about .log-era {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
  margin: 0 0 6px;
}

.page-about .log-title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 8px;
}

.page-about .log-text {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.78;
}

.page-about .log-more {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--cyan-line);
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background-color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-about .log-more:hover {
  background: var(--glass);
  border-color: var(--cyan);
}

.page-about .log-more__icon {
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.24s var(--ease);
}

.page-about .log-more[aria-expanded="false"] .log-more__icon {
  transform: rotate(-135deg) translateY(-2px);
}

.page-about .log-panel {
  max-height: 30rem;
  overflow: hidden;
  opacity: 1;
  transition: max-height 0.24s var(--ease), opacity 0.24s var(--ease);
}

.page-about .log-panel[data-open="false"] {
  max-height: 0;
  opacity: 0;
}

.page-about .log-panel .qa-item__inner {
  padding-top: 14px;
}

.page-about .log-facts {
  margin: 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--about-line);
  display: grid;
  gap: 8px;
}

.page-about .log-facts__row {
  display: flex;
  gap: 14px;
  font-size: 14px;
  line-height: 1.65;
}

.page-about .log-facts__row dt {
  flex: 0 0 72px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-about .log-facts__row dd {
  margin: 0;
  color: var(--white);
}

.page-about .about-panel {
  margin: 0 0 30px;
  padding: 18px 20px;
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: var(--ink-800);
  display: grid;
  gap: 8px;
}

.page-about .about-panel__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--orange-soft);
}

.page-about .about-panel__figures {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
}

.page-about .about-panel__figures li {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

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

/* ---------- 数据流程 ---------- */
.page-about .about-flow {
  border-top: 1px solid var(--about-line);
}

.page-about .about-flow__text {
  max-width: 56ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

.page-about .about-flow__steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-about .about-flow__step {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 0 14px;
  padding: 18px 0;
  border-top: 1px solid var(--about-line);
}

.page-about .about-flow__step:last-child {
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-flow__idx {
  grid-row: 1 / span 2;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-about .about-flow__step h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .about-flow__step p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.78;
}

.page-about .about-flow__media {
  margin: 24px 0 0;
}

/* ---------- 团队与分工 ---------- */
.page-about .about-team {
  border-top: 1px solid var(--about-line);
}

.page-about .about-team__lead {
  max-width: 56ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

.page-about .team-bands {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-about .team-band {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "name num"
    "desc desc";
  align-items: center;
  gap: 6px 14px;
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: var(--ink-800);
  border: 1px solid var(--about-line);
  overflow: hidden;
  transition: border-color 0.22s var(--ease);
}

.page-about .team-band::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: calc(var(--band, 8) * 3.125%);
  background: linear-gradient(90deg, rgba(95, 242, 208, 0.18), rgba(95, 242, 208, 0.02));
  pointer-events: none;
}

.page-about .team-band:hover {
  border-color: var(--about-line-strong);
}

.page-about .team-band > * {
  position: relative;
  z-index: 1;
}

.page-about .team-band__name {
  grid-area: name;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-about .team-band__num {
  grid-area: num;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-about .team-band__desc {
  grid-area: desc;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-team__media {
  margin: 30px 0 0;
}

/* ---------- 赛季内容 ---------- */
.page-about .about-columns {
  border-top: 1px solid var(--about-line);
}

.page-about .about-columns__lead {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  max-width: 58ch;
}

.page-about .about-columns__grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-about .about-column {
  position: relative;
  padding: 24px 22px;
  border-radius: var(--r-md);
  background: var(--ink-800);
  border: 1px solid var(--about-line);
  overflow: hidden;
}

.page-about .about-column::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 120px;
  height: 120px;
  border: 1px solid var(--about-line);
  border-radius: 50%;
  pointer-events: none;
}

.page-about .about-column__tag {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-about .about-column__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .about-column__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 合作方式 ---------- */
.page-about .about-coop {
  border-top: 1px solid var(--about-line);
}

.page-about .about-coop__inner {
  position: relative;
  padding: clamp(26px, 5vw, 52px);
  border-radius: var(--r-lg);
  border: 1px solid var(--cyan-line);
  background:
    radial-gradient(95% 130% at 100% 0%, rgba(95, 242, 208, 0.14), transparent 62%),
    var(--ink-800);
}

.page-about .about-coop__lead {
  max-width: 56ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

.page-about .about-coop__list {
  list-style: none;
  margin: 24px 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-coop__list li {
  padding: 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--about-line);
  background: rgba(6, 17, 15, 0.55);
}

.page-about .about-coop__item-title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .about-coop__list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

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

.page-about .about-coop__links {
  list-style: none;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--about-line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.page-about .about-coop__links a {
  font-size: 14px;
  color: var(--cyan);
  border-bottom: 1px solid var(--cyan-line);
  padding-bottom: 2px;
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero__lead {
    font-size: 16px;
  }

  .page-about .about-journey .log-list {
    padding-left: 42px;
  }

  .page-about .about-journey .log-node {
    left: -42px;
  }

  .page-about .about-journey .log-list::before {
    left: 9px;
  }

  .page-about .about-journey .log-node {
    margin-left: 1px;
  }
}

@media (min-width: 900px) {
  .page-about .about-columns__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-about .team-band {
    grid-template-columns: minmax(140px, 200px) 1fr auto;
    grid-template-areas: "name desc num";
    gap: 0 20px;
    padding: 18px 22px;
  }

  .page-about .team-band__desc {
    font-size: 13.5px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-journey__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: 40px;
  }

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

  .page-about .about-journey__notes .note-vertical {
    position: sticky;
    top: 120px;
  }

  .page-about .about-flow__grid {
    align-items: start;
  }

  .page-about .about-flow__media {
    margin-top: 34px;
  }

  .page-about .about-journey__media {
    margin: 34px 0 48px;
  }
}

@media (min-width: 1240px) {
  .page-about .about-hero::after {
    right: -8%;
  }

  .page-about .about-panel {
    padding: 22px 26px;
  }
}
<<<END>>>

.page-about {
  --band: 1rem;
}