.page-about {
  display: block;
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-top: clamp(28px, 5vw, 56px);
  padding-bottom: clamp(40px, 6vw, 72px);
}

.page-about .about-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: end;
  margin-bottom: clamp(32px, 5vw, 56px);
}

.page-about .about-hero__title {
  margin: 12px 0 20px;
  font-stretch: 88%;
  letter-spacing: -0.02em;
  line-height: 1.04;
}

.page-about .about-hero__leⅾe,
.page-about .about-hero__lede {
  max-width: 40ch;
  color: var(--paper);
  opacity: .88;
}

.page-about .about-hero__note {
  margin-top: 22px;
  color: var(--cyan);
  letter-spacing: .08em;
  font-size: 13px;
}

.page-about .about-hero__aside {
  display: grid;
  gap: 18px;
  padding: 22px 20px;
  background: var(--ink-800);
  border: 1px solid rgba(47, 224, 200, .16);
  border-radius: var(--radius-lg);
}

.page-about .about-hero__aside .v-note {
  writing-mode: vertical-rl;
  justify-self: end;
  color: var(--mute);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
}

.page-about .about-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 12px;
}

.page-about .about-hero__facts li {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mute);
}

.page-about .about-hero__facts .mono {
  display: block;
  font-size: 26px;
  color: var(--paper);
  letter-spacing: -0.01em;
}

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

/* ---------- 波纹分隔条 ---------- */
.page-about .ripple {
  height: 28px;
  margin: clamp(24px, 4vw, 44px) 0;
  background:
    radial-gradient(closest-side, rgba(47, 224, 200, .22), transparent 72%) 8% 50% / 220px 26px repeat-x,
    radial-gradient(closest-side, rgba(122, 92, 255, .2), transparent 72%) 38% 50% / 260px 22px repeat-x,
    radial-gradient(closest-side, rgba(255, 77, 141, .14), transparent 72%) 72% 50% / 240px 18px repeat-x;
  opacity: .9;
  transition: background-position 400ms var(--ease);
}

/* ---------- 通用块 ---------- */
.page-about .about-block {
  padding: clamp(20px, 3vw, 36px) 0;
}

.page-about .about-block h2 {
  margin: 10px 0 18px;
  font-stretch: 90%;
  letter-spacing: -0.015em;
  line-height: 1.08;
}

.page-about .about-block p {
  color: var(--paper);
  opacity: .86;
}

.page-about .section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-about .section-head p {
  max-width: 46ch;
  color: var(--mute);
  opacity: 1;
}

/* ---------- 我们为什么做内容目录 ---------- */
.page-about .about-why__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-why__body p {
  max-width: 42ch;
}

.page-about .about-why__panel {
  padding: 22px 20px;
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(122, 92, 255, .14), rgba(20, 27, 51, .9) 68%);
  border: 1px solid rgba(122, 92, 255, .22);
}

.page-about .about-why__panel-label {
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--violet);
}

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

.page-about .about-why__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  opacity: .84;
}

.page-about .about-why__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(47, 224, 200, .6);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 28px;
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, rgba(47, 224, 200, .6), rgba(122, 92, 255, .44), rgba(255, 77, 141, 0));
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 34px;
  display: grid;
  gap: 10px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--amber);
  box-shadow: 0 0 12px rgba(255, 165, 61, .5);
}

.page-about .about-timeline__stage {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--amber);
}

.page-about .about-timeline__card {
  padding: 22px 20px;
  border-radius: var(--radius-md);
  background: var(--ink-800);
  border: 1px solid rgba(232, 236, 245, .08);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .about-timeline__card:hover,
.page-about .about-timeline__card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(122, 92, 255, .55);
  box-shadow: 0 18px 40px -28px rgba(122, 92, 255, .9);
}

.page-about .about-timeline__title {
  margin: 0 0 10px;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-about .about-timeline__card p {
  margin: 0 0 14px;
  max-width: 40ch;
  font-size: 15px;
  line-height: 1.85;
}

.page-about .about-timeline__tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-timeline__media {
  display: grid;
  gap: 16px;
  justify-items: start;
}

.page-about .about-timeline__media .figure {
  width: 100%;
  margin: 0;
}

.page-about .about-timeline__side-note {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mute);
  justify-self: end;
}

/* ---------- 内容体系 ---------- */
.page-about .about-system__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-system__body p {
  max-width: 44ch;
}

.page-about .about-system__stats {
  display: grid;
  gap: 14px;
}

.page-about .about-system__stat {
  padding: 20px 20px;
  border-radius: var(--radius-md);
  background: var(--ink-800);
  border-left: 3px solid var(--cyan);
}

.page-about .about-system__stat:nth-child(2) {
  border-left-color: var(--violet);
}

.page-about .about-system__stat:nth-child(3) {
  border-left-color: var(--amber);
}

.page-about .about-system__num {
  display: block;
  font-size: 34px;
  line-height: 1;
  color: var(--paper);
  letter-spacing: -0.02em;
}

.page-about .about-system__label {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-about .about-system__stat:nth-child(2) .about-system__label {
  color: var(--violet);
}

.page-about .about-system__stat:nth-child(3) .about-system__label {
  color: var(--amber);
}

.page-about .about-system__stat p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
  opacity: 1;
}

.page-about .about-system__path {
  margin-top: 32px;
  padding: 24px 22px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(47, 224, 200, .12), rgba(122, 92, 255, .12) 60%, rgba(11, 16, 32, 0) 100%),
    var(--ink-800);
  border: 1px solid rgba(47, 224, 200, .18);
}

.page-about .about-system__path-label {
  margin: 0 0 16px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
}

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

.page-about .about-system__steps li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 15px;
  color: var(--paper);
  opacity: .88;
}

.page-about .about-system__steps .mono {
  color: var(--violet);
  font-size: 13px;
  letter-spacing: .1em;
}

.page-about .about-system__path-link {
  margin: 18px 0 0;
}

/* ---------- 重庆 ---------- */
.page-about .about-chongqing__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-chongqing__copy p {
  max-width: 44ch;
}

.page-about .about-chongqing__tiles {
  display: grid;
  gap: 14px;
}

.page-about .about-chongqing__tile {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--ink-800);
  border: 1px solid rgba(232, 236, 245, .08);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-chongqing__tile:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 165, 61, .5);
}

.page-about .about-chongqing__tile .mono {
  display: block;
  margin-bottom: 8px;
  font-size: 15px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-about .about-chongqing__tile p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
  opacity: 1;
}

.page-about .about-chongqing__tile--b .mono {
  color: var(--cyan);
}

.page-about .about-chongqing__tile--c .mono {
  color: var(--magenta);
}

/* ---------- 团队 ---------- */
.page-about .about-team__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-team__chips {
  display: grid;
  gap: 14px;
}

.page-about .about-team__group {
  padding: 18px 20px;
  border-radius: var(--radius-pill);
  background: var(--ink-800);
  border: 1px solid rgba(122, 92, 255, .22);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-team__group:hover {
  background: linear-gradient(120deg, rgba(122, 92, 255, .2), rgba(20, 27, 51, .9));
  border-color: rgba(122, 92, 255, .6);
}

.page-about .about-team__group-name {
  margin: 0 0 6px;
  font-size: 15px;
  letter-spacing: .08em;
  color: var(--paper);
}

.page-about .about-team__group-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}

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

.page-about .about-team__partners {
  margin-top: clamp(32px, 5vw, 48px);
  padding: 26px 22px;
  border-radius: var(--radius-lg);
  background: var(--ink-800);
  border: 1px solid rgba(255, 77, 141, .2);
}

.page-about .about-team__partners h3 {
  margin: 0 0 14px;
  font-stretch: 92%;
  color: var(--paper);
}

.page-about .about-team__partners p {
  max-width: 46ch;
}

.page-about .about-team__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 20px 0 0;
}

/* ---------- 收束 ---------- */
.page-about .about-close__inner {
  padding: clamp(28px, 5vw, 52px) 0 clamp(8px, 2vw, 20px);
  text-align: left;
}

.page-about .about-close__title {
  max-width: 24ch;
}

.page-about .about-close__text {
  max-width: 46ch;
}

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

.page-about .about-close__foot {
  margin-top: 28px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mute);
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.7fr) minmax(240px, 0.7fr);
    gap: 48px;
  }

  .page-about .about-why__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.8fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-timeline__layout {
    grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.8fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-timeline__media {
    position: sticky;
    top: 96px;
  }

  .page-about .about-system__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.9fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-system__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 24px;
  }

  .page-about .about-chongqing__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.9fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-chongqing__tiles {
    padding-top: 32px;
  }

  .page-about .about-chongqing__tile--a {
    transform: translateX(-14px);
  }

  .page-about .about-chongqing__tile--b {
    transform: translateX(18px);
  }

  .page-about .about-chongqing__tile--c {
    transform: translateX(4px);
  }

  .page-about .about-team__layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.9fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-team__figure {
    margin-top: 24px;
  }

  .page-about .section-head {
    grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.8fr);
    gap: 48px;
    align-items: end;
  }
}

@media (min-width: 1280px) {
  .page-about .about-hero__aside {
    padding: 26px 24px;
  }

  .page-about .about-system__stat {
    padding: 24px 22px;
  }
}

/* ---------- 无障碍与动效降级 ---------- */
.page-about a:focus-visible,
.page-about .about-timeline__card:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__card,
  .page-about .about-chongqing__tile,
  .page-about .about-team__group,
  .page-about .ripple {
    transition: none;
  }

  .page-about .about-timeline__card:hover,
  .page-about .about-timeline__card:focus-within,
  .page-about .about-chongqing__tile:hover {
    transform: none;
  }
}
</PAGE_CSS>>>

我完成了「壹乐游艺」品牌自述页的主体 HTML 与专属 CSS：

**HTML 结构**
- 面包屑 → 首屏（大标题 + 竖排注释 + 关键数字侧栏 + 江景氛围图）→ 我们为什么做内容目录 → 分阶段时间线（三步走：起步阶段 / 扩展期 / 当前阶段，含阶梯配图）→ 内容体系（12 个一级 / 64 个二级 / 单轮 15–30 条 + 找内容路径）→ 重庆本地根基 → 团队四小组协作 → 收束 CTA（应用中心 / 更新记录 / 问题解答三条合法路径）。
- 全页只用一个 `<h1>`，其余为 `<h2>` / `<h3>`，层级清晰。
- 三张 `{zhanqunpic:h:…w:…}` 占位图分布在不同语义区块（首屏不 lazy，其余 lazy + async）。
- 所有链接指向合法的站内路由，无表单、外链或下载/交易动作。

**CSS 要点**
- 所有选择器均限定在 `.page-about` 下，未触碰共享头部/页脚。
- 变量全部取自 site_kit 现有 token，未凭空造名。
- 移动端优先，含 1024px、1280px 两档媒体查询；桌面端使用非对称两栏（宽正文 + 窄侧栏），时间线配图 sticky，全宽内容不横向溢出。
- 通过 `.ripple` 波纹分隔条、竖排 `.v-note` 注释、电光紫/霓虹洋红/嘉陵江青的区块级色彩节奏、卡片悬停 4px 上浮 + 霓虹描边、`prefers-reduced-motion` 降级，落实了“纵向叙事 + 宽窄交替”的体验方向。