.page-about {
  --ab-pad: 20px;
  --ab-shadow: 6px 6px 0 rgba(11, 42, 67, 0.08);
}

.page-about .container {
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--ab-pad);
  width: 100%;
}

@media (min-width: 768px) {
  .page-about {
    --ab-pad: 40px;
  }
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  padding-top: 22px;
}

/* ---------- 通用标题块 ---------- */
.page-about .about-head {
  max-width: 66ch;
  margin-bottom: 40px;
}

.page-about .about-head .h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 10px 0 14px;
}

.page-about .about-head__note {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  margin: 0;
  color: inherit;
  opacity: 0.78;
}

.page-about .eyebrow {
  font-family: var(--font-ui);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  margin: 0;
}

.page-about.is-dark .about-head .h2,
.page-about .is-dark .about-head .h2 {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 34px 0 20px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.55;
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  display: grid;
  gap: 34px;
}

.page-about .about-hero__lead .eyebrow {
  color: var(--blueprint);
}

.page-about .about-hero .h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(33px, 6.2vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--paper);
  margin: 14px 0 22px;
  max-width: 18ch;
}

.page-about .about-hero__text {
  font-family: var(--font-body);
  font-size: clamp(15.5px, 1.4vw, 17.5px);
  line-height: 1.9;
  color: rgba(246, 243, 234, 0.8);
  max-width: 60ch;
  margin: 0 0 16px;
}

.page-about .about-hero__aside {
  border: 1px solid var(--line);
  border-top: 2px solid var(--amber);
  background: linear-gradient(180deg, rgba(11, 42, 67, 0.72), rgba(4, 18, 31, 0.5));
  padding: 22px 20px 18px;
}

.page-about .about-hero__aside-title {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--blueprint);
  margin: 0 0 8px;
}

.page-about .about-figures {
  margin: 0;
  display: grid;
}

.page-about .about-figures > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-about .about-figures > div:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-about .about-figures dt {
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

.page-about .about-figures dd {
  margin: 0;
  font-size: 26px;
  line-height: 1;
  color: var(--amber);
  white-space: nowrap;
}

@media (min-width: 960px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }
}

/* ---------- 纸面区块 ---------- */
.page-about .is-paper {
  background: var(--paper);
  color: var(--ink);
  position: relative;
}

.page-about .is-paper .eyebrow {
  color: var(--celadon);
}

.page-about .is-paper .about-head .h2 {
  color: var(--ink);
}

/* ---------- 品牌坐标 ---------- */
.page-about .about-coord {
  display: grid;
  gap: 34px;
}

.page-about .about-coord__text {
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.9;
  margin: 0;
  max-width: 60ch;
}

.page-about .about-rows {
  margin: 28px 0 0;
  border-top: 1px solid var(--line-ink);
}

.page-about .about-rows__item {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-ink);
}

.page-about .about-rows dt {
  font-family: var(--font-ui);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-about .about-rows dd {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-about .about-coord__side {
  display: grid;
  gap: 22px;
  align-content: start;
}

.page-about .about-stamp {
  border: 2px solid var(--celadon);
  padding: 18px 16px;
  transform: rotate(-1.4deg);
  background: rgba(47, 143, 122, 0.06);
}

.page-about .about-stamp__no {
  margin: 0 0 8px;
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--celadon);
}

.page-about .about-stamp__place {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 20px;
  color: var(--ink);
}

.page-about .about-coord__note {
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.85;
  color: #4c5666;
  margin: 0;
  border-left: 2px solid var(--cinnabar);
  padding-left: 14px;
}

@media (min-width: 900px) {
  .page-about .about-coord {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    gap: 56px;
  }

  .page-about .about-rows__item {
    grid-template-columns: 116px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

/* ---------- 发展历程 ---------- */
.page-about .about-history {
  display: grid;
  gap: 34px;
}

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

.page-about .about-tl__item {
  position: relative;
}

.page-about .about-tl__year {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--blueprint);
  padding-bottom: 8px;
}

.page-about .about-tl__card {
  border: 1px solid var(--line);
  border-left: 2px solid var(--blueprint);
  background: linear-gradient(180deg, rgba(11, 42, 67, 0.78), rgba(11, 42, 67, 0.34));
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-about .about-tl__card[open] {
  border-left-color: var(--amber);
}

.page-about .about-tl__sum {
  cursor: pointer;
  list-style: none;
  padding: 17px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
}

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

.page-about .about-tl__sum::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--blueprint);
}

.page-about .about-tl__card[open] .about-tl__sum::after {
  content: "–";
  color: var(--amber);
}

.page-about .about-tl__ver {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 19px;
  color: var(--paper);
}

.page-about .about-tl__hint {
  font-family: var(--font-ui);
  font-size: 12.5px;
  color: var(--mist);
}

.page-about .about-tl__body {
  padding: 16px 20px 20px;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-tl__body p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(246, 243, 234, 0.78);
}

.page-about .about-history__media {
  margin: 0;
  border: 1px solid var(--line);
  padding: 10px;
  background: rgba(11, 42, 67, 0.5);
}

.page-about .about-history__media img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-about .about-history__media figcaption {
  font-family: var(--font-ui);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  padding: 10px 4px 2px;
}

@media (min-width: 900px) {
  .page-about .about-tl {
    padding-left: 122px;
    position: relative;
  }

  .page-about .about-tl::before {
    content: "";
    position: absolute;
    left: 92px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: linear-gradient(180deg, var(--blueprint), rgba(124, 199, 232, 0.04));
  }

  .page-about .about-tl__year {
    position: absolute;
    left: -122px;
    top: 22px;
    width: 80px;
    text-align: right;
    padding: 0;
  }

  .page-about .about-tl__item::before {
    content: "";
    position: absolute;
    left: -34px;
    top: 26px;
    width: 8px;
    height: 8px;
    background: var(--amber);
    transform: rotate(45deg);
  }

  .page-about .about-tl__card:hover {
    transform: translateX(3px);
  }
}

@media (min-width: 1024px) {
  .page-about .about-history {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

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

  .page-about .about-history__media img {
    height: 320px;
  }
}

/* ---------- 四地服务网络 ---------- */
.page-about .about-net {
  display: grid;
  gap: 16px;
}

.page-about .about-net__panel {
  background: #fff;
  border: 1px solid var(--line-ink);
  box-shadow: var(--ab-shadow);
  padding: 0 20px 20px;
  position: relative;
}

.page-about .about-net__panel::before {
  content: "";
  display: block;
  height: 5px;
  margin: 0 -20px 18px;
  background: var(--ab-region, var(--blueprint));
}

.page-about .about-net__panel[data-area-panel="上海"] {
  --ab-region: var(--celadon);
}

.page-about .about-net__panel[data-area-panel="广州"] {
  --ab-region: var(--cinnabar);
}

.page-about .about-net__panel[data-area-panel="北京"] {
  --ab-region: var(--blueprint);
}

.page-about .about-net__panel[data-area-panel="深圳"] {
  --ab-region: var(--cinnabar);
}

.page-about .about-net__head .h3 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 24px;
  line-height: 1.2;
  margin: 0 0 6px;
  color: var(--ink);
}

.page-about .about-net__role {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
  margin: 0 0 16px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line-ink);
}

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

.page-about .about-net__list li {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  padding-left: 16px;
  position: relative;
  color: #2a323d;
}

.page-about .about-net__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--ab-region, var(--blueprint));
}

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

@media (min-width: 760px) {
  .page-about .about-net {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 1100px) {
  .page-about .about-net {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-net__panel:nth-child(2),
  .page-about .about-net__panel:nth-child(4) {
    margin-top: 30px;
  }
}

/* ---------- 规格体系 ---------- */
.page-about .about-specs {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-spec {
  background: rgba(6, 26, 43, 0.92);
  padding: 26px 22px 24px;
  transition: background 0.25s ease;
}

.page-about .about-spec:hover {
  background: rgba(11, 42, 67, 0.96);
}

.page-about .about-spec__idx {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--amber);
  margin: 0 0 12px;
}

.page-about .about-spec .h3 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 22px;
  line-height: 1.25;
  color: var(--paper);
  margin: 0 0 12px;
}

.page-about .about-spec__text {
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(246, 243, 234, 0.78);
  margin: 0 0 16px;
}

.page-about .about-spec__meta {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--blueprint);
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
}

.page-about .about-specs__media {
  margin: 30px 0 0;
  border: 1px solid var(--line);
  padding: 10px;
  background: rgba(11, 42, 67, 0.4);
}

.page-about .about-specs__media img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.page-about .about-specs__media figcaption {
  font-family: var(--font-ui);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  padding: 12px 4px 2px;
}

@media (min-width: 900px) {
  .page-about .about-specs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-spec {
    padding: 32px 30px 28px;
  }

  .page-about .about-specs__media img {
    height: 380px;
  }
}

/* ---------- 团队与资质 ---------- */
.page-about .about-team {
  display: grid;
  gap: 32px;
}

.page-about .about-team__media {
  margin: 0;
  border: 1px solid var(--line-ink);
  padding: 10px;
  background: #fff;
  box-shadow: var(--ab-shadow);
}

.page-about .about-team__media img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.page-about .about-team__body .h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 38px);
  line-height: 1.2;
  color: var(--ink);
  margin: 10px 0 16px;
}

.page-about .about-team__text {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: #2a323d;
  margin: 0 0 24px;
  max-width: 58ch;
}

.page-about .about-cert {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-ink);
  border: 1px solid var(--line-ink);
}

.page-about .about-cert__item {
  background: var(--paper);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.page-about .about-cert__item:hover {
  background: #fff;
  transform: translateX(3px);
}

.page-about .about-cert__k {
  font-family: var(--font-ui);
  font-size: 14px;
  color: #4c5666;
}

.page-about .about-cert__v {
  font-size: 18px;
  color: var(--amber);
  white-space: nowrap;
}

.page-about .about-team__note {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.8;
  color: #4c5666;
  margin: 0;
  border-left: 2px solid var(--celadon);
  padding-left: 14px;
}

@media (min-width: 900px) {
  .page-about .about-team {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
    gap: 60px;
    align-items: start;
  }

  .page-about .about-team__media img {
    height: 420px;
  }
}

/* ---------- 合作生态 ---------- */
.page-about .about-eco {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-eco__item {
  background: rgba(6, 26, 43, 0.65);
  padding: 24px 4px 26px;
  display: grid;
  gap: 8px;
}

.page-about .about-eco__k {
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--coral);
}

.page-about .about-eco__item .h3 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 22px;
  line-height: 1.25;
  color: var(--paper);
  margin: 0;
}

.page-about .about-eco__item p {
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(246, 243, 234, 0.76);
  margin: 0;
  max-width: 44ch;
}

@media (min-width: 860px) {
  .page-about .about-eco {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    background: transparent;
  }

  .page-about .about-eco__item {
    padding: 24px 30px 30px;
    border-left: 1px solid var(--line);
  }

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

/* ---------- 延伸入口 ---------- */
.page-about .about-next {
  border-top: 1px solid var(--line);
}

.page-about .about-next .h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.2;
  color: var(--paper);
  margin: 10px 0 28px;
}

.page-about .about-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-next__item a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "k i"
    "d i";
  align-items: center;
  gap: 6px 18px;
  padding: 20px 18px;
  background: rgba(6, 26, 43, 0.9);
  color: var(--paper);
  text-decoration: none;
  transition: background 0.22s ease;
}

.page-about .about-next__item a:hover,
.page-about .about-next__item a:focus-visible {
  background: rgba(11, 42, 67, 0.98);
}

.page-about .about-next__k {
  grid-area: k;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 19px;
  color: var(--paper);
}

.page-about .about-next__d {
  grid-area: d;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(246, 243, 234, 0.7);
}

.page-about .about-next__i {
  grid-area: i;
  font-size: 18px;
  color: var(--amber);
  transition: transform 0.22s ease;
}

.page-about .about-next__item a:hover .about-next__i {
  transform: translateX(5px);
}

@media (min-width: 860px) {
  .page-about .about-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-next__item a {
    padding: 26px 26px;
  }
}
<<<END>>>