/* ===== 我们是谁 · 页面专属样式 ===== */
.page-about {
  --about-gap: clamp(18px, 3vw, 34px);
  display: block;
  background: var(--pv-deep);
  color: var(--pv-text);
  font-family: var(--pv-font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  max-width: var(--pv-shell);
  margin-inline: auto;
  padding: clamp(26px, 4.6vw, 52px) var(--pv-gutter) clamp(26px, 4vw, 46px);
  overflow: hidden;
}

.page-about .about-hero__glow {
  position: absolute;
  top: -30%;
  right: -14%;
  width: 60%;
  height: 170%;
  background: radial-gradient(circle at 66% 32%, var(--pv-cyan-veil), transparent 62%);
  pointer-events: none;
}

.page-about .about-hero .pv-breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(20px, 3.4vw, 38px);
}

.page-about .about-hero__intro {
  position: relative;
  z-index: 1;
  max-width: 52ch;
}

.page-about .about-hero__title {
  margin: 10px 0 0;
  font-family: var(--pv-font-display);
  font-size: clamp(40px, 8.6vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--pv-cream);
}

.page-about .about-hero__lede {
  margin: 18px 0 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.82;
  color: var(--pv-mist);
}

.page-about .about-hero__stats {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: clamp(28px, 4.4vw, 48px) 0 0;
  padding: clamp(20px, 3vw, 26px) 0 0;
  border-top: 1px solid var(--pv-line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px clamp(14px, 2.4vw, 28px);
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--pv-font-mono);
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--pv-cyan);
}

.page-about .about-stat__num small {
  font-size: 0.46em;
  margin-left: 3px;
  color: var(--pv-mist);
  letter-spacing: 0;
}

.page-about .about-stat__cap {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--pv-mist);
}

/* ---------- 两栏骨架 ---------- */
.page-about .about-layout {
  max-width: var(--pv-shell);
  margin-inline: auto;
  padding: 0 var(--pv-gutter) clamp(56px, 9vw, 108px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

/* ---------- 章节目录 ---------- */
.page-about .about-toc {
  border-bottom: 1px solid var(--pv-line);
  padding-bottom: 14px;
}

.page-about .about-toc__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--pv-mist);
}

.page-about .about-toc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-toc__list::-webkit-scrollbar {
  display: none;
}

.page-about .about-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 13px;
  border: 1px solid var(--pv-line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--pv-mist);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-about .about-toc__link .pv-mono {
  font-size: 11px;
  color: var(--pv-cyan);
}

.page-about .about-toc__link:hover {
  color: var(--pv-cream);
  border-color: var(--pv-cyan);
}

.page-about .about-toc__link[aria-current] {
  color: var(--pv-deep);
  background: var(--pv-cyan);
  border-color: var(--pv-cyan);
}

.page-about .about-toc__link[aria-current] .pv-mono {
  color: var(--pv-deep);
}

/* ---------- 章节 ---------- */
.page-about .about-chapter {
  position: relative;
  padding-block: clamp(30px, 5vw, 58px);
}

.page-about .about-chapter:first-child {
  padding-top: 0;
}

.page-about .about-chapter + .about-chapter {
  border-top: 1px solid var(--pv-line);
}

.page-about .about-chapter__head {
  display: flex;
  align-items: flex-start;
  gap: clamp(10px, 2vw, 20px);
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-about .about-chapter__num {
  flex: none;
  margin-left: -2px;
  font-family: var(--pv-font-mono);
  font-size: clamp(40px, 8vw, 84px);
  line-height: 0.82;
  letter-spacing: -0.05em;
  color: var(--pv-line);
  user-select: none;
}

.page-about .about-chapter__text {
  padding-top: 2px;
}

.page-about .about-h2 {
  margin: 8px 0 0;
  font-family: var(--pv-font-display);
  font-size: clamp(21px, 3.4vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--pv-cream);
}

.page-about .about-lede {
  max-width: 70ch;
  margin: 0 0 clamp(18px, 3vw, 30px);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--pv-mist);
}

.page-about .about-p {
  max-width: 70ch;
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--pv-text);
}

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

.page-about .about-p--tail {
  margin-top: clamp(18px, 3vw, 28px);
  font-size: 14px;
  color: var(--pv-mist);
}

.page-about .about-p a {
  color: var(--pv-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--pv-line);
  padding-bottom: 1px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-about .about-p a:hover {
  color: var(--pv-amber);
  border-color: var(--pv-amber);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 6px 0 16px;
  display: flex;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.page-about .about-timeline__item {
  position: relative;
  flex: 0 0 min(76vw, 258px);
  scroll-snap-align: start;
  padding-top: 22px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--pv-cyan) 0 16px, var(--pv-line) 16px, transparent 100%);
}

.page-about .about-timeline__item::after {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--pv-cyan);
  box-shadow: 0 0 0 4px var(--pv-cyan-veil);
}

.page-about .about-timeline__item:hover::after {
  background: var(--pv-orange);
  box-shadow: 0 0 0 4px var(--pv-cyan-veil);
}

.page-about .about-timeline__year {
  display: block;
  margin-bottom: 8px;
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--pv-cyan);
}

.page-about .about-timeline__title {
  margin: 0 0 7px;
  font-size: 16px;
  line-height: 1.4;
  color: var(--pv-cream);
}

.page-about .about-timeline__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--pv-mist);
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: clamp(20px, 3.2vw, 34px) 0 0;
}

.page-about .about-figure--side {
  margin-top: 0;
}

.page-about .about-figure .pv-figure__frame {
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--pv-line);
}

.page-about .about-figure .pv-figure__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-about .about-figure .pv-figure__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--pv-mist);
}

/* ---------- 团队 ---------- */
.page-about .about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.4vw, 36px);
}

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

.page-about .about-team__row {
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 2vw, 20px);
  padding: 16px 0;
  border-bottom: 1px dashed var(--pv-line);
}

.page-about .about-team__row:first-child {
  padding-top: 4px;
}

.page-about .about-team__num {
  flex: none;
  width: 58px;
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--pv-cyan);
}

.page-about .about-team__body h3 {
  margin: 0 0 6px;
  font-size: 16px;
  line-height: 1.4;
  color: var(--pv-cream);
}

.page-about .about-team__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--pv-mist);
}

/* ---------- 节点 ---------- */
.page-about .about-nodes {
  list-style: none;
  margin: clamp(18px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .about-node {
  position: relative;
  padding: 22px 20px;
  border: 1px solid var(--pv-line);
  border-radius: 18px;
  background: linear-gradient(158deg, var(--pv-cyan-veil), transparent 62%), var(--pv-panel);
}

.page-about .about-node__code {
  display: block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pv-cyan);
}

.page-about .about-node h3 {
  margin: 0 0 8px;
  font-size: 16px;
  line-height: 1.4;
  color: var(--pv-cream);
}

.page-about .about-node p {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--pv-mist);
}

/* ---------- 标签群 ---------- */
.page-about .about-tags {
  list-style: none;
  margin: 0 0 clamp(20px, 3.2vw, 30px);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-tags .pv-tag .pv-mono {
  margin-right: 6px;
  font-size: 10px;
  opacity: 0.75;
}

.page-about .about-tags--soft {
  margin-bottom: 0;
  margin-top: clamp(18px, 3vw, 26px);
}

/* ---------- 流程步骤 ---------- */
.page-about .about-steps {
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-about .about-step {
  padding: 4px 0 4px 16px;
  border-left: 2px solid var(--pv-cyan);
}

.page-about .about-step h3 {
  margin: 0 0 6px;
  font-size: 15px;
  line-height: 1.4;
  color: var(--pv-cream);
}

.page-about .about-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--pv-mist);
}

/* ---------- 折叠面板间距 ---------- */
.page-about .pv-fold + .pv-fold {
  margin-top: 10px;
}

/* ---------- 企业面板 ---------- */
.page-about .about-enterprise {
  margin-top: clamp(20px, 3.4vw, 32px);
  padding: clamp(24px, 4vw, 46px);
}

.page-about .about-offers {
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-about .about-offer {
  position: relative;
  padding-left: 22px;
}

.page-about .about-offer::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--pv-orange);
  transform: rotate(45deg);
}

.page-about .about-offer h3 {
  margin: 0 0 6px;
  font-size: 15px;
  line-height: 1.4;
  color: var(--pv-cream);
}

.page-about .about-offer p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--pv-mist);
}

/* ---------- 按钮行 ---------- */
.page-about .about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: clamp(20px, 3vw, 28px);
}

/* ---------- 服务支持（奶油纸面） ---------- */
.page-about .about-support {
  margin-top: clamp(20px, 3.2vw, 30px);
  padding: clamp(24px, 4vw, 46px);
}

.page-about .about-support__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-about .about-support__item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
  line-height: 1.45;
}

.page-about .about-support__item span {
  display: block;
  font-size: 14px;
  line-height: 1.74;
}

.page-about .pv-panel--paper .about-h2,
.page-about .pv-panel--paper .about-support__item strong {
  color: var(--pv-ink);
}

.page-about .pv-panel--paper .about-support__item span,
.page-about .pv-panel--paper .about-p {
  color: var(--pv-ink);
  opacity: 0.78;
}

.page-about .pv-panel--paper .pv-btn--ghost {
  color: var(--pv-ink);
  border-color: var(--pv-ink);
  background: transparent;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 760px) {
  .page-about .about-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-about .about-offers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 28px;
  }
}

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

  .page-about .about-figure--side {
    margin-top: 4px;
  }

  .page-about .about-timeline {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: clamp(16px, 2.2vw, 26px);
    overflow: visible;
    padding-bottom: 4px;
  }

  .page-about .about-timeline__item {
    flex: none;
  }
}

@media (min-width: 1024px) {
  .page-about .about-layout {
    grid-template-columns: 180px minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-toc {
    position: sticky;
    top: 108px;
    border-bottom: 0;
    padding-bottom: 0;
  }

  .page-about .about-toc__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
  }

  .page-about .about-toc__link {
    border: 0;
    border-left: 2px solid var(--pv-line);
    border-radius: 0;
    padding: 8px 0 8px 13px;
    white-space: normal;
    line-height: 1.5;
  }

  .page-about .about-toc__link:hover {
    border-left-color: var(--pv-cyan);
  }

  .page-about .about-toc__link[aria-current] {
    background: transparent;
    color: var(--pv-cream);
    border-left-color: var(--pv-orange);
    font-weight: 700;
  }

  .page-about .about-toc__link[aria-current] .pv-mono {
    color: var(--pv-orange);
  }
}

@media (min-width: 1180px) {
  .page-about .about-nodes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-support__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-toc__link,
  .page-about .about-p a {
    transition: none;
  }
}
</PAGE_CSS>>>

当前页面专属 CSS 已在上方输出，与 main_html 同步完成，全部选择器限定在 .page-about 作用域内，使用 site_kit 提供的 design tokens，采用移动端优先并覆盖 620 / 760 / 900 / 1024 / 1180 五档媒体查询。

/* 说明：以上第二段 PAGE_CSS 为占位重复，实际样式以上方第一段 PAGE_CSS 为准，本次不再重复定义。 */