.page-about {
  --node-mark: clamp(46px, 5vw, 60px);
  --about-rail: 180px;
  background: var(--ink);
  color: var(--cream);
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-about .about-breadcrumb-row {
  padding-block: 18px 0;
}

.page-about .breadcrumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-about .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0;
}

.page-about h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--white);
  margin: 10px 0 14px;
  text-wrap: balance;
}

.page-about h3 {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.4vw, 24px);
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--white);
  margin: 0 0 8px;
}

.page-about p {
  margin: 0 0 12px;
  line-height: 1.75;
}

.page-about .about-section-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-about .about-section-head .lede {
  max-width: 68ch;
}

/* 首屏框景 */
.page-about .about-hero {
  padding-block: 20px clamp(32px, 5vw, 60px);
}

.page-about .about-hero__frame {
  position: relative;
  border: 2px solid var(--line);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(95, 242, 214, 0.1), transparent 58%),
    linear-gradient(155deg, var(--district), var(--ink) 72%);
  box-shadow: var(--shadow-brut);
  padding: clamp(22px, 3.2vw, 44px);
  overflow: hidden;
}

.page-about .about-hero__frame::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 10px;
  background: repeating-linear-gradient(90deg, var(--line) 0 2px, transparent 2px 14px);
  opacity: 0.75;
}

.page-about .about-hero__frame::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 160px;
  height: 160px;
  border: 2px solid var(--line-faint);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 5.6vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--white);
  margin: 12px 0 18px;
  text-wrap: balance;
}

.page-about .about-hero .lede {
  color: var(--cream-70);
  max-width: 60ch;
}

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

.page-about .about-hero__plate {
  display: flex;
  align-items: flex-end;
}

.page-about .about-hero__plate-inner {
  display: grid;
  gap: 2px;
  min-width: 168px;
  padding: 16px 18px 18px;
  background: var(--ink-deep);
  border: 2px solid var(--orange);
  box-shadow: 6px 6px 0 0 rgba(255, 154, 77, 0.26);
}

.page-about .about-hero__plate-code {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mauve);
}

.page-about .about-hero__plate-year {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cream-52);
}

.page-about .about-hero__plate-year--now {
  color: var(--cyan);
}

.page-about .about-hero__plate-arrow {
  color: var(--orange);
  font-size: 16px;
  line-height: 1;
}

.page-about .about-hero__plate-note {
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--orange-soft);
  border-top: 1px solid var(--line-soft);
  padding-top: 6px;
}

/* 年份跳转刻度条 */
.page-about .about-jump {
  list-style: none;
  margin: 26px 0 0;
  padding: 14px 0 0;
  border-top: 2px solid var(--line-soft);
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-jump li {
  flex: 0 0 auto;
}

.page-about .about-jump a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line-faint);
  background: var(--panel-soft);
  color: var(--cream);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
    background-color var(--t-fast) var(--ease);
}

.page-about .about-jump a .mono {
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-about .about-jump a:hover,
.page-about .about-jump a:focus-visible {
  border-color: var(--cyan);
  background: var(--panel);
  color: var(--white);
}

/* 时间轴 */
.page-about .about-timeline__figure {
  margin: 0 0 clamp(22px, 3.4vw, 36px);
  border: 2px solid var(--line-faint);
}

.page-about .about-timeline__layout {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

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

.page-about .about-rail__label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mauve);
  margin-bottom: 14px;
}

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

.page-about .about-rail__years li {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--cream-52);
}

.page-about .about-rail__years li::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 6px;
  width: 10px;
  height: 2px;
  background: var(--line);
}

.page-about .about-rail__years li em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mauve);
}

.page-about .about-rail__years li.is-now {
  color: var(--cyan);
}

.page-about .about-rail__years li.is-now::before {
  background: var(--orange);
}

.page-about .about-rail__years li.is-now em {
  color: var(--orange-soft);
}

.page-about .about-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.6vw, 26px);
}

.page-about .about-node {
  position: relative;
  border: 2px solid var(--line-faint);
  background: var(--panel-soft);
  box-shadow: var(--shadow-brut-sm);
  padding: clamp(18px, 2.4vw, 28px) clamp(16px, 2.4vw, 28px)
    clamp(18px, 2.4vw, 28px) calc(var(--node-mark) + 14px);
  transition: border-color var(--t-fast) var(--ease);
}

.page-about .about-node:hover {
  border-color: var(--line);
}

.page-about .about-node__marker {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--node-mark);
  height: var(--node-mark);
  display: grid;
  place-items: center;
  background: var(--panel);
  border-right: 2px solid var(--line-faint);
  border-bottom: 2px solid var(--line-faint);
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.08em;
}

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

.page-about .about-node__body p {
  color: var(--cream-70);
  max-width: 72ch;
}

.page-about .about-node__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .about-node__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cream);
}

.page-about .about-node__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-about .about-node--now {
  border-color: var(--orange);
  background: linear-gradient(160deg, rgba(255, 154, 77, 0.12), var(--panel-soft) 48%);
}

.page-about .about-node--now .about-node__marker {
  background: var(--orange);
  color: var(--ink-deep);
  border-color: var(--orange);
}

.page-about .about-node__figure {
  margin: 16px 0 6px;
}

.page-about .about-node__figure img {
  display: block;
  width: min(100%, 220px);
  height: auto;
  border: 2px solid var(--line-soft);
}

/* 折叠问答 */
.page-about .disclosure-group {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.page-about .disclosure {
  border: 1px solid var(--line-faint);
  background: var(--panel);
}

.page-about .disclosure h3 {
  margin: 0;
  font-size: 15px;
}

.page-about .disclosure-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: transparent;
  border: 0;
  color: var(--cream);
  font: inherit;
  font-size: 15px;
  text-align: left;
  cursor: pointer;
  transition: color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-about .disclosure-trigger::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: 16px;
  line-height: 1;
}

.page-about .disclosure-trigger[aria-expanded="true"]::after {
  content: "−";
  color: var(--orange);
}

.page-about .disclosure-trigger:hover,
.page-about .disclosure-trigger:focus-visible {
  background: var(--panel-soft);
  color: var(--white);
}

.page-about .disclosure-panel {
  padding: 0 14px 14px;
  border-top: 1px solid var(--line-faint);
  margin-top: 0;
}

.page-about .disclosure-panel p {
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--cream-70);
}

/* 团队与审核 */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-team__intro p {
  color: var(--cream-70);
  max-width: 62ch;
}

.page-about .about-team__figure {
  margin: 20px 0 0;
  border: 2px solid var(--line-faint);
}

.page-about .about-team__figure figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mauve);
  padding: 8px 10px;
  border-top: 1px solid var(--line-faint);
}

.page-about .about-tree {
  border: 2px solid var(--line-soft);
  background: var(--district);
  padding: clamp(16px, 2.4vw, 26px);
}

.page-about .about-tree__root {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  background: var(--ink-deep);
  border: 2px solid var(--cyan);
}

.page-about .about-tree__root-num {
  font-size: 26px;
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-tree__root-label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cream);
}

.page-about .about-tree__list {
  list-style: none;
  position: relative;
  margin: 0;
  padding: 18px 0 0 22px;
  display: grid;
  gap: 12px;
}

.page-about .about-tree__list::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 18px;
  width: 2px;
  background: var(--line-soft);
}

.page-about .about-tree__branch {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  padding: 10px 12px;
  background: var(--panel-soft);
  border-left: 2px solid var(--line);
}

.page-about .about-tree__branch::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 22px;
  width: 16px;
  height: 2px;
  background: var(--line-soft);
}

.page-about .about-tree__num {
  font-size: 18px;
  line-height: 1.2;
  color: var(--orange);
}

.page-about .about-tree__name {
  align-self: center;
  font-size: 14px;
  color: var(--white);
}

.page-about .about-tree__desc {
  grid-column: 1 / -1;
  font-size: 13px;
  line-height: 1.6;
  color: var(--cream-52);
}

.page-about .about-audit {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-audit li {
  border-top: 3px solid var(--orange);
  background: var(--panel-soft);
  padding: 14px 16px 16px;
}

.page-about .about-audit__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange-soft);
  margin-bottom: 6px;
}

.page-about .about-audit h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.page-about .about-audit p {
  font-size: 14px;
  color: var(--cream-70);
  margin: 0;
}

.page-about .about-audit__note {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mauve);
}

/* 合作生态 */
.page-about .about-eco__grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-about .about-dots {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18px, 1fr));
  gap: 8px;
  padding: clamp(14px, 2.4vw, 22px);
  border: 2px solid var(--line-faint);
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(95, 242, 214, 0.09), transparent 58%),
    var(--ink-deep);
}

.page-about .about-dots span {
  aspect-ratio: 1;
  background: var(--line-soft);
  transition: background-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-about .about-dots span:nth-child(3n) {
  background: rgba(95, 242, 214, 0.5);
}

.page-about .about-dots span:nth-child(7n) {
  background: rgba(142, 130, 168, 0.6);
}

.page-about .about-dots span:hover {
  background: var(--orange);
  transform: scale(1.25);
}

.page-about .about-eco__map-note {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cream-70);
}

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

.page-about .about-eco__list li {
  padding: 12px 0 12px 16px;
  border-left: 3px solid var(--cyan);
  background: linear-gradient(90deg, rgba(95, 242, 214, 0.08), transparent 72%);
}

.page-about .about-eco__num {
  display: block;
  font-size: 22px;
  line-height: 1.1;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-about .about-eco__list strong {
  display: block;
  font-size: 14px;
  color: var(--white);
  margin: 2px 0 4px;
}

.page-about .about-eco__list p {
  margin: 0;
  font-size: 14px;
  color: var(--cream-52);
}

/* 资质 */
.page-about .about-badges {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.page-about .about-badges li {
  position: relative;
  padding: 16px;
  background: var(--panel-soft);
  border: 2px solid var(--line-faint);
}

.page-about .about-badges li::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 14px;
  height: 14px;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
}

.page-about .about-badges__code {
  display: block;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-about .about-badges p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cream-70);
}

.page-about .about-honor__note {
  margin-top: 16px;
  font-size: 14px;
  color: var(--cream-52);
}

/* 收尾入口 */
.page-about .about-next__panel {
  border: 2px solid var(--line);
  background: linear-gradient(135deg, var(--district), var(--ink) 78%);
  box-shadow: var(--shadow-brut);
  padding: clamp(20px, 3.4vw, 40px);
}

.page-about .about-next__panel > p {
  color: var(--cream-70);
  max-width: 64ch;
}

.page-about .about-next__links {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-about .about-next__card {
  display: block;
  padding: 16px;
  text-decoration: none;
  color: var(--cream);
  border: 2px solid var(--line-faint);
  background: var(--panel-soft);
  transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease),
    background-color var(--t-fast) var(--ease);
}

.page-about .about-next__card .mono {
  display: block;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange-soft);
  margin-bottom: 8px;
}

.page-about .about-next__card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--white);
  margin-bottom: 6px;
}

.page-about .about-next__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--cream-52);
}

.page-about .about-next__card:hover,
.page-about .about-next__card:focus-visible {
  border-color: var(--orange);
  background: var(--panel);
  transform: translateY(-2px);
}

/* 断点 */
@media (min-width: 760px) {
  .page-about .about-audit {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.65fr);
    align-items: end;
  }

  .page-about .about-eco__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-timeline__layout {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-about .about-rail {
    display: block;
    position: sticky;
    top: 110px;
    align-self: start;
    padding-left: 24px;
    border-left: 2px solid var(--line-soft);
  }

  .page-about .about-node {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: 1ms !important;
    animation: none !important;
  }

  .page-about .about-dots span:hover,
  .page-about .about-next__card:hover,
  .page-about .about-next__card:focus-visible {
    transform: none;
  }
}


<main id="main-content" class="page-about">
  <div class="container about-breadcrumb-row">
    <nav class="breadcrumbs" aria-label="面包屑导航">
      <ol>
        <li><a href="/">街区首页</a></li>
        <li aria-current="page">品牌轨迹</li>
      </ol>
    </nav>
  </div>

  <section class="about-hero">
    <div class="container">
      <div class="about-hero__frame">
        <div class="about-hero__grid">
          <div class="about-hero__copy">
            <p class="eyebrow">品牌轨迹 · 2019 至今</p>
            <h1>六年门牌更替，PG 把这条路走成了街区</h1>
            <p class="lede">2019 年 3 月第一次亮灯时，我们只有一个朴素的念头：让中文用户找内容时不用猜。六年下来，这条街长出了 12 个一级分类、36 个二级标签和一百二十余篇帮助条目，每一次版本更新都在同一张地图上留下编号。常来的朋友知道位置从来没挪过，第一次来的人顺着门牌号也能走完。</p>
            <div class="about-hero__actions">
              <a class="btn btn--primary" href="/catalog/">查看资源目录</a>
              <a class="btn btn--ghost" href="/notes/">读更新笔记</a>
            </div>
          </div>
          <div class="about-hero__plate" aria-hidden="true">
            <div class="about-hero__plate-inner">
              <span class="about-hero__plate-code mono">PG · BLOCK 01</span>
              <strong class="about-hero__plate-year">2019</strong>
              <span class="about-hero__plate-arrow">↓</span>
              <strong class="about-hero__plate-year about-hero__plate-year--now">2025</strong>
              <span class="about-hero__plate-note mono">V4 / 06 · 12</span>
            </div>
          </div>
        </div>
      </div>
      <ul class="about-jump" aria-label="按年份跳转到里程碑">
        <li><a href="#node-2019"><span class="mono">2019</span>第一块门牌</a></li>
        <li><a href="#node-2021"><span class="mono">2021</span>目录变厚</a></li>
        <li><a href="#node-2023"><span class="mono">2023</span>底层重构</a></li>
        <li><a href="#node-2025"><span class="mono">2025</span>V4 更新</a></li>
      </ul>
    </div>
  </section>

  <section class="section about-timeline" id="milestones">
    <div class="container">
      <header class="about-section-head">
        <p class="eyebrow">里程碑 · V1 — V4</p>
        <h2>四个版本，四次把路面重新铺平</h2>
        <p class="lede">每个版本要解决的其实是同一件事：让路径更短，让说明离内容更近。下面四个节点记下了目录结构、帮助文档和维护方式的变化。</p>
      </header>

      <figure class="about-timeline__figure media-frame media-frame--16x9">
        <img src="{zhanqunpic:h:800w:1200}" width="1200" height="800" alt="抽象夜间门牌与路牌沿纵向排列，青绿与暖橙灯箱勾勒出时间推进的路径">
        <figcaption>门牌沿街排列，编号对应每一次版本更新</figcaption>
      </figure>

      <div class="about-timeline__layout">
        <aside class="about-rail" aria-hidden="true">
          <span class="about-rail__label mono">YEAR</span>
          <ul class="about-rail__years">
            <li><span class="mono">2019</span><em>V1</em></li>
            <li><span class="mono">2021</span><em>V2</em></li>
            <li><span class="mono">2023</span><em>V3</em></li>
            <li class="is-now"><span class="mono">2025</span><em>V4</em></li>
          </ul>
        </aside>

        <ol class="about-track">
          <li class="about-node" id="node-2019">
            <div class="about-node__marker mono">V1</div>
            <div class="about-node__body">
              <p class="about-node__year mono">2019 · 03</p>
              <h3>第一块门牌挂上去</h3>
              <p>2019 年 3 月，PG 品牌站上线。第一版只做一件事：把中文用户常找的内容分类排成一条能顺着走的目录。分类在前、说明在后，这个顺序从第一天保持到今天。</p>
              <ul class="about-node__list">
                <li>资源目录与基础帮助文档同时开放</li>
                <li>确定一级分类与二级标签的层级关系</li>
                <li>栏目按编号固定位置，方便记住也方便口耳相传</li>
              </ul>
            </div>
          </li>

          <li class="about-node" id="node-2021">
            <div class="about-node__marker mono">V2</div>
            <div class="about-node__body">
              <p class="about-node__year mono">2021 · 升级</p>
              <h3>目录变厚，路径变短</h3>
              <p>V2 把分类体系重新梳理了一遍，标签不再只是装饰，厂商列表也第一次有了明确的排序规则。点进任何一个分类，看到的都是按内容类型、版本适配和更新时间排好的结果。</p>
              <ul class="about-node__list">
                <li>厂商列表改用三把尺子排序，翻找次数明显减少</li>
                <li>下载与明细入口固定到列表右侧，位置不再跳动</li>
                <li>帮助文档新增常用入口索引，问题自己就能找到答案</li>
              </ul>
            </div>
          </li>

          <li class="about-node" id="node-2023">
            <div class="about-node__marker mono">V3</div>
            <div class="about-node__body">
              <p class="about-node__year mono">2023 · 重构</p>
              <h3>从一份目录，变成一份档案</h3>
              <p>V3 是一次底层重构。帮助文档从散落的问答整理成 8 个一级目录，分类、版本与帮助条目之间第一次有了稳定的互相指向；内容安全与信息审核团队也开始执行三级审核，每条资源记录平均经过两次复核。</p>
              <ul class="about-node__list">
                <li>帮助文档按 8 个一级目录重新归位</li>
                <li>三级审核进入日常运行，问题记录退回上一环节重走</li>
                <li>更新笔记按周发布，每月首个工作日汇总上月记录</li>
              </ul>
            </div>
          </li>

          <li class="about-node about-node--now" id="node-2025">
            <div class="about-node__marker mono">V4</div>
            <div class="about-node__body">
              <p class="about-node__year mono">2025 · 06 · 12</p>
              <h3>V4：把六年的路重铺一遍</h3>
              <p>2025 年 6 月 12 日，V4 版本更新。厂商列表按内容类型、版本适配与更新时间重新排序，下载与明细入口固定在列表右侧；帮助文档和记录明细之间可以互相跳转，遇到问题先自助找答案，再决定要不要找人。</p>
              <figure class="about-node__figure">
                <img src="{zhanqunpic:h:1000w:1000}" width="1000" height="1000" alt="霓虹青与暖橙交叠的抽象门牌编号图形，突出 V4 版本节点标识" loading="lazy" decoding="async">
              </figure>
              <div class="disclosure-group">
                <article class="disclosure" data-disclosure>
                  <h3>
                    <button class="disclosure-trigger" data-disclosure-trigger aria-expanded="false" aria-controls="v4-q1">V4 换了排序，习惯的入口还在吗？</button>
                  </h3>
                  <div class="disclosure-panel" id="v4-q1" data-disclosure-panel hidden>
                    <p>一级分类的编号和栏目位置保持连续，原来的走法仍然通。改动集中在列表排序和右侧入口的固定位置上，常用的下载与明细会比以前少点一次。</p>
                  </div>
                </article>
                <article class="disclosure" data-disclosure>
                  <h3>
                    <button class="disclosure-trigger" data-disclosure-trigger aria-expanded="false" aria-controls="v4-q2">手机上和电脑上看，差别大吗？</button>
                  </h3>
                  <div class="disclosure-panel" id="v4-q2" data-disclosure-panel hidden>
                    <p>V4 把左侧的纵向导览压成顶部刻度，卡片改为单列。只玩固定分类的朋友两步内就能到目标分类，字号和对比度也一并调过，夜里看更省力。</p>
                  </div>
                </article>
              </div>
            </div>
          </li>
        </ol>
      </div>
    </div>
  </section>

  <section class="section about-team" id="team">
    <div class="container">
      <div class="about-team__grid">
        <div class="about-team__intro">
          <p class="eyebrow">团队 · 审核</p>
          <h2>这条街每天有人巡场</h2>
          <p>65 人的运营团队分四块协作：内容运营盯分类与栏目，技术支持守版本与入口，客户服务接住每一个提问，品牌与设计让标识始终认得出来。一条资源记录从进站到上线，要过三级审核、两次复核。</p>
          <figure class="about-team__figure">
            <img src="{zhanqunpic:h:800w:1200}" width="1200" height="800" alt="无人物的抽象工作台与节点关系图，表现内容维护与审核协作" loading="lazy" decoding="async">
            <figcaption>一条记录从进站到上线，途经三道关卡</figcaption>
          </figure>
        </div>

        <div class="about-team__tree">
          <div class="about-tree">
            <div class="about-tree__root">
              <span class="about-tree__root-num mono">65</span>
              <span class="about-tree__root-label">运营团队</span>
            </div>
            <ul class="about-tree__list">
              <li class="about-tree__branch">
                <span class="about-tree__num mono">28</span>
                <span class="about-tree__name">内容运营</span>
                <span class="about-tree__desc">分类维护、栏目更新与记录整理</span>
              </li>
              <li class="about-tree__branch">
                <span class="about-tree__num mono">16</span>
                <span class="about-tree__name">技术支持</span>
                <span class="about-tree__desc">版本适配、下载入口与访问保障</span>
              </li>
              <li class="about-tree__branch">
                <span class="about-tree__num mono">12</span>
                <span class="about-tree__name">客户服务</span>
                <span class="about-tree__desc">工单应答、问题跟进与通道转接</span>
              </li>
              <li class="about-tree__branch">
                <span class="about-tree__num mono">9</span>
                <span class="about-tree__name">品牌与设计</span>
                <span class="about-tree__desc">门牌体系、栏目视觉与内容呈现</span>
              </li>
            </ul>
          </div>
        </div>
      </div>

      <ol class="about-audit">
        <li>
          <span class="about-audit__no mono">01</span>
          <h3>一级初审</h3>
          <p>分类、标签与描述是否对得上内容本身，明显跑偏的当场退回。</p>
        </li>
        <li>
          <span class="about-audit__no mono">02</span>
          <h3>二级复审</h3>
          <p>版本号、适配地区与更新时间逐项确认，避免用户按错门牌。</p>
        </li>
        <li>
          <span class="about-audit__no mono">03</span>
          <h3>三级终审</h3>
          <p>表述规范与内容安全最后过一遍，通过后才出现在公开列表里。</p>
        </li>
      </ol>
      <p class="about-audit__note">每条资源记录平均经过两次复核；被退回的记录补齐信息后，从对应环节重新走一遍。</p>
    </div>
  </section>

  <section class="section about-eco" id="eco">
    <div class="container">
      <header class="about-section-head">
        <p class="eyebrow">合作生态 · 覆盖</p>
        <h2>这条街不是我们一家在铺</h2>
        <p class="lede">内容的丰富度和访问的稳定性，靠的是长期合作。我们把厂商、技术服务商与行业组织放在同一张街区图上，各自负责一段。</p>
      </header>

      <div class="about-eco__grid">
        <div class="about-eco__map">
          <div class="about-dots" aria-hidden="true">
            <span></span><span></span><span></span><span></span><span></span><span></span><span></span>
            <span></span><span></span><span></span><span></span><span></span><span></span><span></span>
            <span></span><span></span><span></span><span></span><span></span><span></span><span></span>
            <span></span><span></span><span></span><span></span><span></span>
          </div>
          <p class="about-eco__map-note">内容分发与访问服务覆盖 26 个省份，月均 86 万人次从这里经过。无论从哪条路进来，看到的分类与版本信息都是同一个版本。</p>
        </div>

        <ul class="about-eco__list">
          <li>
            <span class="about-eco__num mono">48</span>
            <strong>家内容厂商</strong>
            <p>按内容类型、版本适配与更新时间进入厂商列表，右侧固定展示下载与明细入口。</p>
          </li>
          <li>
            <span class="about-eco__num mono">12</span>
            <strong>家技术服务商</strong>
            <p>承接分发链路与访问保障，让高峰期打开页面的速度保持稳定。</p>
          </li>
          <li>
            <span class="about-eco__num mono">06</span>
            <strong>个行业内容合作组织</strong>
            <p>在内容与技术上长期协作，栏目调整前会一起过一遍影响范围。</p>
          </li>
        </ul>
      </div>
    </div>
  </section>

  <section class="section about-honor">
    <div class="container">
      <header class="about-section-head">
        <p class="eyebrow">资质 · 观察</p>
        <h2>被看见的六年</h2>
      </header>
      <ul class="about-badges">
        <li>
          <span class="about-badges__code mono">ISO 9001</span>
          <p>质量管理体系认证，覆盖内容生产与服务流程。</p>
        </li>
        <li>
          <span class="about-badges__code mono">ISO 27001</span>
          <p>信息安全管理体系认证，覆盖数据与访问管理。</p>
        </li>
        <li>
          <span class="about-badges__code mono">2024</span>
          <p>获评区域数字经济内容服务创新案例。</p>
        </li>
        <li>
          <span class="about-badges__code mono">2023</span>
          <p>入选省级数字服务观察样本。</p>
        </li>
      </ul>
      <p class="about-honor__note">六年间累计发布 460 余篇品牌与产品说明，形成一份可以慢慢翻的内容档案。</p>
    </div>
  </section>

  <section class="section about-next">
    <div class="container">
      <div class="about-next__panel">
        <p class="eyebrow">继续往前走</p>
        <h2>想了解更多，三条路都通</h2>
        <p>帮助文档里客服通道和常用入口排在前面，7×12 小时可以自助查询；人工客服在工作日 9:00–18:00 在线。想聊合作，也欢迎直接找到我们。</p>
        <div class="about-next__links">
          <a class="about-next__card" href="/faqs/">
            <span class="mono">01</span>
            <strong>帮助索引</strong>
            <p>常用入口、客服通道与常见问题集中在这里。</p>
          </a>
          <a class="about-next__card" href="/find-us/">
            <span class="mono">02</span>
            <strong>找到我们</strong>
            <p>电话、邮箱与工作时间一目了然。</p>
          </a>
          <a class="about-next__card" href="/catalog/">
            <span class="mono">03</span>
            <strong>资源目录</strong>
            <p>按分类和版本，直接找到你要的那一栏。</p>
          </a>
        </div>
      </div>
    </div>
  </section>
</main>

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  font-style: normal;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mauve);
}

.page-about .about-rail__years li.is-now {
  color: var(--cyan);
}

.page-about .about-rail__years li.is-now::before {
  background: var(--orange);
}

.page-about .about-rail__years li.is-now em {
  color: var(--orange-soft);
}

.page-about .about-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.6vw, 26px);
}

.page-about .about-node {
  position: relative;
  border: 2px solid var(--line-faint);
  background: var(--panel-soft);
  box-shadow: var(--shadow-brut-sm);
  padding: clamp(18px, 2.4vw, 28px) clamp(16px, 2.4vw, 28px)
    clamp(18px, 2.4vw, 28px) calc(var(--node-mark) + 14px);
  transition: border-color var(--t-fast) var(--ease);
}

.page-about .about-node:hover {
  border-color: var(--line);
}

.page-about .about-node__marker {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--node-mark);
  height: var(--node-mark);
  display: grid;
  place-items: center;
  background: var(--panel);
  border-right: 2px solid var(--line-faint);
  border-bottom: 2px solid var(--line-faint);
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.08em;
}

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

.page-about .about-node__body p {
  color: var(--cream-70);
  max-width: 72ch;
}

.page-about .about-node__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .about-node__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cream);
}

.page-about .about-node__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-about .about-node--now {
  border-color: var(--orange);
  background: linear-gradient(160deg, rgba(255, 154, 77, 0.12), var(--panel-soft) 48%);
}

.page-about .about-node--now .about-node__marker {
  background: var(--orange);
  color: var(--ink-deep);
  border-color: var(--orange);
}

.page-about .about-node__figure {
  margin: 16px 0 6px;
}

.page-about .about-node__figure img {
  display: block;
  width: min(100%, 220px);
  height: auto;
  border: 2px solid var(--line-soft);
}

/* 折叠问答 */
.page-about .disclosure-group {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.page-about .disclosure {
  border: 1px solid var(--line-faint);
  background: var(--panel);
}

.page-about .disclosure h3 {
  margin: 0;
  font-size: 15px;
}

.page-about .disclosure-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: transparent;
  border: 0;
  color: var(--cream);
  font: inherit;
  font-size: 15px;
  text-align: left;
  cursor: pointer;
  transition: color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-about .disclosure-trigger::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: 16px;
  line-height: 1;
}

.page-about .disclosure-trigger[aria-expanded="true"]::after {
  content: "−";
  color: var(--orange);
}

.page-about .disclosure-trigger:hover,
.page-about .disclosure-trigger:focus-visible {
  background: var(--panel-soft);
  color: var(--white);
}

.page-about .disclosure-panel {
  padding: 0 14px 14px;
  border-top: 1px solid var(--line-faint);
  margin-top: 0;
}

.page-about .disclosure-panel p {
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--cream-70);
}

/* 团队与审核 */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-team__intro p {
  color: var(--cream-70);
  max-width: 62ch;
}

.page-about .about-team__figure {
  margin: 20px 0 0;
  border: 2px solid var(--line-faint);
}

.page-about .about-team__figure figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mauve);
  padding: 8px 10px;
  border-top: 1px solid var(--line-faint);
}

.page-about .about-tree {
  border: 2px solid var(--line-soft);
  background: var(--district);
  padding: clamp(16px, 2.4vw, 26px);
}

.page-about .about-tree__root {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  background: var(--ink-deep);
  border: 2px solid var(--cyan);
}

.page-about .about-tree__root-num {
  font-size: 26px;
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-tree__root-label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cream);
}

.page-about .about-tree__list {
  list-style: none;
  position: relative;
  margin: 0;
  padding: 18px 0 0 22px;
  display: grid;
  gap: 12px;
}

.page-about .about-tree__list::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 18px;
  width: 2px;
  background: var(--line-soft);
}

.page-about .about-tree__branch {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  padding: 10px 12px;
  background: var(--panel-soft);
  border-left: 2px solid var(--line);
}

.page-about .about-tree__branch::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 22px;
  width: 16px;
  height: 2px;
  background: var(--line-soft);
}

.page-about .about-tree__num {
  font-size: 18px;
  line-height: 1.2;
  color: var(--orange);
}

.page-about .about-tree__name {
  align-self: center;
  font-size: 14px;
  color: var(--white);
}

.page-about .about-tree__desc {
  grid-column: 1 / -1;
  font-size: 13px;
  line-height: 1.6;
  color: var(--cream-52);
}

.page-about .about-audit {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-audit li {
  border-top: 3px solid var(--orange);
  background: var(--panel-soft);
  padding: 14px 16px 16px;
}

.page-about .about-audit__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange-soft);
  margin-bottom: 6px;
}

.page-about .about-audit h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.page-about .about-audit p {
  font-size: 14px;
  color: var(--cream-70);
  margin: 0;
}

.page-about .about-audit__note {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mauve);
}

/* 合作生态 */
.page-about .about-eco__grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-about .about-dots {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18px, 1fr));
  gap: 8px;
  padding: clamp(14px, 2.4vw, 22px);
  border: 2px solid var(--line-faint);
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(95, 242, 214, 0.09), transparent 58%),
    var(--ink-deep);
}

.page-about .about-dots span {
  aspect-ratio: 1;
  background: var(--line-soft);
  transition: background-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-about .about-dots span:nth-child(3n) {
  background: rgba(95, 242, 214, 0.5);
}

.page-about .about-dots span:nth-child(7n) {
  background: rgba(142, 130, 168, 0.6);
}

.page-about .about-dots span:hover {
  background: var(--orange);
  transform: scale(1.25);
}

.page-about .about-eco__map-note {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cream-70);
}

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

.page-about .about-eco__list li {
  padding: 12px 0 12px 16px;
  border-left: 3px solid var(--cyan);
  background: linear-gradient(90deg, rgba(95, 242, 214, 0.08), transparent 72%);
}

.page-about .about-eco__num {
  display: block;
  font-size: 22px;
  line-height: 1.1;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-about .about-eco__list strong {
  display: block;
  font-size: 14px;
  color: var(--white);
  margin: 2px 0 4px;
}

.page-about .about-eco__list p {
  margin: 0;
  font-size: 14px;
  color: var(--cream-52);
}

/* 资质 */
.page-about .about-badges {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.page-about .about-badges li {
  position: relative;
  padding: 16px;
  background: var(--panel-soft);
  border: 2px solid var(--line-faint);
}

.page-about .about-badges li::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 14px;
  height: 14px;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
}

.page-about .about-badges__code {
  display: block;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-about .about-badges p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cream-70);
}

.page-about .about-honor__note {
  margin-top: 16px;
  font-size: 14px;
  color: var(--cream-52);
}

/* 收尾入口 */
.page-about .about-next__panel {
  border: 2px solid var(--line);
  background: linear-gradient(135deg, var(--district), var(--ink) 78%);
  box-shadow: var(--shadow-brut);
  padding: clamp(20px, 3.4vw, 40px);
}

.page-about .about-next__panel > p {
  color: var(--cream-70);
  max-width: 64ch;
}

.page-about .about-next__links {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-about .about-next__card {
  display: block;
  padding: 16px;
  text-decoration: none;
  color: var(--cream);
  border: 2px solid var(--line-faint);
  background: var(--panel-soft);
  transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease),
    background-color var(--t-fast) var(--ease);
}

.page-about .about-next__card .mono {
  display: block;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange-soft);
  margin-bottom: 8px;
}

.page-about .about-next__card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--white);
  margin-bottom: 6px;
}

.page-about .about-next__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--cream-52);
}

.page-about .about-next__card:hover,
.page-about .about-next__card:focus-visible {
  border-color: var(--orange);
  background: var(--panel);
  transform: translateY(-2px);
}

/* 断点 */
@media (min-width: 760px) {
  .page-about .about-audit {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.65fr);
    align-items: end;
  }

  .page-about .about-eco__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-timeline__layout {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-about .about-rail {
    display: block;
    position: sticky;
    top: 110px;
    align-self: start;
    padding-left: 24px;
    border-left: 2px solid var(--line-soft);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: 1ms !important;
    animation: none !important;
  }

  .page-about .about-dots span:hover,
  .page-about .about-next__card:hover,
  .page-about .about-next__card:focus-visible {
    transform: none;
  }
}