.page-about {
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  border-bottom: 1px solid rgba(20, 20, 20, 0.14);
  padding: 26px 0 34px;
  background: var(--paper);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 7px;
  background-image: repeating-linear-gradient(to right, var(--stone) 0 1px, transparent 1px 14px);
  opacity: 0.3;
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  padding-top: 18px;
  border-top: 1px solid var(--indigo);
}

.page-about .about-hero .breadcrumbs {
  margin-bottom: 16px;
}

.page-about .about-hero__sep {
  margin: 0 6px;
  color: var(--stone);
}

.page-about .about-hero__kicker {
  margin: 0;
  color: var(--celadon);
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 6.2vw, 4.1rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
  max-width: 15ch;
  color: var(--indigo);
}

.page-about .about-hero__lede {
  font-size: 1rem;
  line-height: 1.78;
  margin: 18px 0 0;
  max-width: 42em;
  color: var(--ink);
}

.page-about .about-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(20, 20, 20, 0.14);
}

.page-about .about-facts__item {
  min-width: 0;
}

.page-about .about-facts dt {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--stone);
  line-height: 1.4;
}

.page-about .about-facts dd {
  margin: 4px 0 0;
  font-size: 1.25rem;
  line-height: 1.3;
  color: var(--ink);
}

.page-about .about-facts dd .num {
  color: var(--orange-deep);
  font-size: 1.5em;
}

.page-about .about-facts__note {
  margin: 14px 0 0;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

/* ---------- 主网格 ---------- */

.page-about .about-grid {
  padding-top: 30px;
  padding-bottom: 56px;
}

/* ---------- 时间轴 ---------- */

.page-about .about-axis {
  border-top: 1px solid var(--indigo);
  padding-top: 12px;
}

.page-about .about-axis .index-label {
  color: var(--stone);
  margin: 0;
}

.page-about .about-axis__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 4px;
  display: flex;
  gap: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-about .about-axis__list::-webkit-scrollbar {
  height: 3px;
}

.page-about .about-axis__list::-webkit-scrollbar-thumb {
  background: var(--celadon-pale);
}

.page-about .about-axis__item {
  flex: 0 0 auto;
  padding-right: 20px;
}

.page-about .about-axis__node {
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}

.page-about .about-axis__dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--celadon);
  flex: 0 0 auto;
}

.page-about .about-axis__year {
  font-size: 0.9375rem;
  color: var(--ink);
}

.page-about .about-axis__cap {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--stone);
}

.page-about .about-axis__node:hover .about-axis__cap,
.page-about .about-axis__node:focus-visible .about-axis__cap {
  color: var(--orange-deep);
}

/* ---------- 正文区 ---------- */

.page-about .about-body {
  min-width: 0;
  margin-top: 26px;
}

.page-about .about-sec {
  padding: 30px 0 8px;
  scroll-margin-top: calc(var(--quickbar-h) + 28px);
}

.page-about .about-sec + .about-sec,
.page-about .about-sec + .about-quote + .about-sec {
  border-top: 1px solid rgba(20, 20, 20, 0.12);
  margin-top: 28px;
}

.page-about .about-sec__head {
  margin-bottom: 16px;
}

.page-about .about-sec__head .index-label {
  margin: 0;
  color: var(--stone);
}

.page-about .about-sec__head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.4rem, 4.4vw, 2.05rem);
  line-height: 1.26;
  letter-spacing: -0.01em;
  margin: 8px 0 0;
  max-width: 20ch;
  color: var(--indigo);
  transition: color 0.24s var(--ease);
}

.page-about .about-sec:target .about-sec__head h2 {
  color: var(--orange-deep);
}

.page-about .about-sec p {
  font-size: 1rem;
  line-height: 1.78;
  margin: 0 0 14px;
  max-width: 34em;
}

.page-about .about-aside {
  border-left: 2px solid var(--celadon);
  padding-left: 14px;
  color: var(--ink);
  background: linear-gradient(to right, rgba(191, 216, 205, 0.28), transparent 78%);
}

/* ---------- 图片 ---------- */

.page-about .about-figure {
  margin: 24px 0 4px;
}

.page-about .about-figure .media__cap {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-about .media img,
.page-about .about-portrait img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 服务类目列表 ---------- */

.page-about .about-cats {
  list-style: none;
  margin: 20px 0 18px;
  padding: 0;
  border-top: 1px solid var(--ink);
}

.page-about .about-cats__item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 10px;
  padding: 13px 2px;
  border-bottom: 1px solid var(--paper-2);
  transition: background-color 0.22s var(--ease);
}

.page-about .about-cats__item:hover {
  background-color: var(--paper-2);
}

.page-about .about-cats__no {
  color: var(--gold);
  margin: 0;
}

.page-about .about-cats__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--indigo);
}

.page-about .about-cats__count {
  font-size: 0.875rem;
  color: var(--stone);
  white-space: nowrap;
}

.page-about .about-cats__count .num {
  font-size: 1.7em;
  color: var(--orange-deep);
  margin-right: 2px;
}

/* ---------- 认证表 ---------- */

.page-about .about-table-wrap {
  margin: 20px 0 18px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--indigo);
}

.page-about .about-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.page-about .about-table__cap {
  text-align: left;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--stone);
  padding: 10px 0 4px;
}

.page-about .about-table th,
.page-about .about-table td {
  text-align: left;
  vertical-align: top;
  padding: 12px 14px 12px 0;
  border-bottom: 1px solid var(--paper-2);
  line-height: 1.66;
}

.page-about .about-table thead th {
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--stone);
  padding-bottom: 8px;
}

.page-about .about-table tbody th {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--indigo);
  white-space: nowrap;
}

.page-about .about-table tbody tr {
  transition: background-color 0.22s var(--ease);
}

.page-about .about-table tbody tr:hover {
  background-color: var(--orange-sand);
}

/* ---------- 消毒五步 ---------- */

.page-about .about-steps {
  list-style: none;
  margin: 20px 0 18px;
  padding: 0;
}

.page-about .about-steps__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 2px 14px;
  padding: 14px 0;
  border-top: 1px solid var(--paper-2);
}

.page-about .about-steps__item:last-child {
  border-bottom: 1px solid var(--paper-2);
}

.page-about .about-steps__no {
  grid-row: 1 / span 2;
  font-size: 1.25rem;
  color: var(--celadon);
  line-height: 1.3;
}

.page-about .about-steps__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--indigo);
  line-height: 1.4;
}

.page-about .about-steps__note {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 全宽引文 ---------- */

.page-about .about-quote {
  margin: 32px 0 0;
  padding: 22px 20px;
  background: var(--orange-sand);
  border: 1px solid var(--ink);
}

.page-about .about-quote p {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.1rem, 3.2vw, 1.5rem);
  line-height: 1.5;
  letter-spacing: -0.01em;
  margin: 0;
  max-width: 24em;
  color: var(--ink);
}

/* ---------- 直营边界 ---------- */

.page-about .about-boundary {
  display: grid;
  gap: 12px;
  margin: 20px 0 18px;
}

.page-about .about-boundary__card {
  padding: 16px 16px 18px;
  border-color: var(--celadon-pale);
  background: var(--paper-2);
}

.page-about .about-boundary__card .index-label {
  margin: 0;
  color: var(--celadon);
}

.page-about .about-boundary__cities {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  margin: 8px 0 0;
  color: var(--indigo);
  max-width: none;
}

.page-about .about-boundary__note {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 6px 0 0;
  color: var(--stone);
  max-width: none;
}

/* ---------- 收束区 ---------- */

.page-about .about-sec--check {
  padding-bottom: 12px;
}

.page-about .about-check {
  background: var(--indigo);
  border: 1px solid var(--indigo);
  padding: 20px 18px 22px;
  margin: 20px 0 0;
}

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

.page-about .about-check__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--indigo-2);
}

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

.page-about .about-check__no {
  font-size: 1.5rem;
  color: var(--orange);
  line-height: 1.2;
}

.page-about .about-check__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  line-height: 1.42;
  margin: 0;
  color: var(--paper);
  max-width: none;
}

.page-about .about-check__desc {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 6px 0 0;
  color: rgba(246, 241, 231, 0.78);
  max-width: 36em;
}

/* ---------- 结尾图文 ---------- */

.page-about .about-end {
  display: grid;
  gap: 22px;
  margin: 26px 0 0;
}

.page-about .about-end p {
  font-size: 1rem;
  line-height: 1.78;
  margin: 0;
  max-width: 34em;
}

.page-about .about-portrait {
  margin: 0;
  background: var(--paper-2);
  border: 1px solid var(--celadon-pale);
}

.page-about .about-portrait figcaption {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--stone);
  padding: 10px 12px 12px;
  line-height: 1.6;
}

/* ---------- 修订摘要 ---------- */

.page-about .about-revisions {
  margin-top: 20px;
  border-top: 1px solid var(--ink);
  padding-top: 12px;
}

.page-about .about-revisions summary {
  cursor: pointer;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--indigo);
  list-style: none;
  padding: 4px 0;
}

.page-about .about-revisions summary::-webkit-details-marker {
  display: none;
}

.page-about .about-revisions summary::before {
  content: "+ ";
  color: var(--orange);
}

.page-about .about-revisions[open] summary::before {
  content: "− ";
}

.page-about .about-revisions p {
  margin: 10px 0 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--stone);
  max-width: 36em;
}

.page-about .about-revisions__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.page-about .about-end__more {
  margin: 22px 0 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--stone);
  max-width: 36em;
}

.page-about .about-end__more a {
  color: var(--orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 桌面端 ---------- */

@media (min-width: 960px) {

  .page-about .about-hero {
    padding: 34px 0 46px;
  }

  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px 28px;
  }

  .page-about .about-grid {
    display: grid;
    grid-template-columns: 148px minmax(0, 1fr);
    column-gap: 64px;
    padding-top: 44px;
    padding-bottom: 76px;
  }

  .page-about .about-axis {
    position: sticky;
    top: calc(var(--quickbar-h) + 28px);
    align-self: start;
    border-top: 1px solid var(--indigo);
    padding-top: 14px;
  }

  .page-about .about-axis__list {
    display: block;
    overflow: visible;
    margin-top: 16px;
    position: relative;
    padding: 0;
  }

  .page-about .about-axis__list::before {
    content: "";
    position: absolute;
    left: 3px;
    top: 10px;
    bottom: 10px;
    width: 1px;
    background: var(--celadon-pale);
  }

  .page-about .about-axis__item {
    display: block;
    padding: 0 0 0 20px;
    position: relative;
  }

  .page-about .about-axis__item + .about-axis__item {
    margin-top: 20px;
  }

  .page-about .about-axis__node {
    display: block;
    white-space: normal;
  }

  .page-about .about-axis__dot {
    position: absolute;
    left: -20px;
    top: 6px;
    width: 7px;
    height: 7px;
    display: block;
  }

  .page-about .about-axis__year {
    display: block;
    font-size: 1.125rem;
    color: var(--indigo);
    line-height: 1.3;
  }

  .page-about .about-axis__cap {
    display: block;
    margin-top: 2px;
    line-height: 1.5;
  }

  .page-about .about-body {
    margin-top: 0;
    position: relative;
  }

  .page-about .about-body::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    right: -30px;
    width: 5px;
    background-image: repeating-linear-gradient(to bottom, var(--stone) 0 1px, transparent 1px 16px);
    opacity: 0.26;
    pointer-events: none;
  }

  .page-about .about-sec {
    padding: 38px 0 10px;
  }

  .page-about .about-boundary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-quote {
    padding: 30px 34px;
    margin-top: 40px;
  }

  .page-about .about-check {
    padding: 28px 30px 30px;
  }

  .page-about .about-end {
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 36px;
    align-items: start;
    margin-top: 34px;
  }

  .page-about .about-figure {
    margin-top: 28px;
  }
}

@media (min-width: 1280px) {

  .page-about .about-grid {
    grid-template-columns: 168px minmax(0, 1fr);
    column-gap: 80px;
  }

  .page-about .about-sec p {
    max-width: 36em;
  }

  .page-about .about-end {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 48px;
  }
}

/* ---------- 动效克制 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-about .about-cats__item,
  .page-about .about-table tbody tr,
  .page-about .about-sec__head h2 {
    transition: none;
  }
}
<<<END>>>