.page-about {
  --about-line: rgba(236, 240, 241, 0.2);
  --about-dim: #95A5A6;
  --about-grid: rgba(52, 152, 219, 0.16);
  --about-card-dark: rgba(44, 62, 80, 0.45);
  position: relative;
}

.page-about .breadcrumb {
  padding-top: 24px;
  font-size: 13px;
}

.page-about .about-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 26px;
  padding: 34px 0 30px;
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--about-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.55;
  pointer-events: none;
}

.page-about .about-hero > * {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__text h1 {
  font-size: 30px;
  line-height: 1.2;
  margin: 0 0 12px;
}

.page-about .about-hero__lead {
  max-width: 560px;
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--about-dim);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 0;
}

.page-about .about-hero__stat {
  background: var(--about-card-dark);
  border: 1px solid var(--about-line);
  border-radius: 12px;
  padding: 14px 12px;
}

.page-about .about-hero__stat dt {
  font-size: 12px;
  color: var(--about-dim);
  margin-bottom: 4px;
}

.page-about .about-hero__stat dd {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-yellow);
  font-family: var(--font-mono);
}

.page-about .about-quick {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 26px 0;
}

.page-about .magnet {
  min-height: 108px;
}

.page-about .about-scope__inner,
.page-about .about-dim__inner,
.page-about .about-updates__inner,
.page-about .about-response__inner {
  padding: 34px 0;
}

.page-about .about-scope__head,
.page-about .about-dim__head,
.page-about .about-updates__head,
.page-about .about-find__head,
.page-about .about-response__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 22px;
}

.page-about .about-scope__head > div,
.page-about .about-dim__head > div,
.page-about .about-updates__head > div,
.page-about .about-find__head > div,
.page-about .about-response__head > div {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-about .about-scope__head h2,
.page-about .about-dim__head h2,
.page-about .about-updates__head h2,
.page-about .about-find__head h2,
.page-about .about-response__head h2 {
  margin: 0;
  font-size: 26px;
  line-height: 1.2;
}

.page-about .about-scope__head p,
.page-about .about-dim__head p,
.page-about .about-updates__head p,
.page-about .about-find__head p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-dim);
}

.page-about .about-scope__body {
  display: grid;
  gap: 28px;
}

.page-about .data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.page-about .data-table thead th {
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-yellow);
  padding: 10px 12px;
  border-bottom: 1px solid var(--about-line);
}

.page-about .data-table td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--about-line);
  vertical-align: top;
  line-height: 1.5;
}

.page-about .data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.04);
}

.page-about .about-scope__chart {
  margin: 0;
  border: 1px dashed var(--about-line);
  border-radius: 16px;
  padding: 14px;
  background: rgba(26, 31, 46, 0.28);
}

.page-about .about-scope__chart img,
.page-about .about-dim__chart img,
.page-about .about-updates__chart img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
}

.page-about .about-scope__chart figcaption,
.page-about .about-dim__chart figcaption,
.page-about .about-updates__chart figcaption {
  margin-top: 8px;
  font-size: 12px;
  color: var(--about-dim);
}

.page-about .about-dim__body {
  display: grid;
  gap: 28px;
}

.page-about .dim-node {
  background: rgba(26, 31, 46, 0.25);
  border: 1px solid var(--about-line);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 14px;
}

.page-about .dim-node summary {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
}

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

.page-about .dim-node__badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--accent-yellow);
  color: var(--text-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-about .dim-node__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-blue);
  background: rgba(52, 152, 219, 0.14);
  padding: 2px 8px;
  border-radius: 999px;
}

.page-about .dim-node ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--about-line);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 4px 12px;
}

.page-about .dim-node li {
  font-size: 14px;
  line-height: 1.75;
  padding-left: 14px;
  position: relative;
}

.page-about .dim-node li::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--accent-blue);
  border-radius: 50%;
  position: absolute;
  left: 2px;
  top: 11px;
}

.page-about .dim-node__tag {
  display: inline-block;
  font-size: 11px;
  color: var(--accent-yellow);
  border: 1px solid rgba(241, 196, 15, 0.4);
  padding: 0 6px;
  border-radius: 999px;
  margin-left: 6px;
  line-height: 1.5;
}

.page-about .about-dim__chart,
.page-about .about-updates__chart {
  margin: 0;
}

.page-about .about-updates__body {
  display: grid;
  gap: 28px;
}

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

.page-about .about-updates__timeline li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 9px 10px;
  border-bottom: 1px solid var(--about-line);
  font-size: 13px;
  line-height: 1.5;
}

.page-about .about-updates__timeline li:first-child {
  border-top: 1px solid var(--about-line);
}

.page-about .about-updates__timeline li:nth-child(even) {
  background: rgba(44, 62, 80, 0.28);
}

.page-about .about-updates__batch {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  color: var(--accent-yellow);
  margin-top: 1px;
}

.page-about .about-updates__badge {
  flex: 0 0 auto;
  font-size: 11px;
  color: var(--status-new);
  border: 1px solid rgba(39, 174, 96, 0.6);
  padding: 1px 7px;
  border-radius: 999px;
  margin-left: auto;
}

.page-about .about-find {
  background: var(--card-cream);
  color: var(--text-dark);
  border-radius: 20px;
  margin: 28px 0;
  padding: 30px 18px;
}

.page-about .about-find__head h2 {
  color: var(--text-dark);
}

.page-about .about-find__head .index-mark {
  background: var(--accent-yellow);
  color: var(--text-dark);
}

.page-about .about-find__head p {
  color: #576574;
}

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

.page-about .about-find__steps li {
  background: var(--card-peach);
  border-radius: 16px;
  padding: 20px 16px;
}

.page-about .about-find__steps li:nth-child(even) {
  background: #FDEBD0;
}

.page-about .about-find__step-num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-blue);
}

.page-about .about-find__steps h3 {
  margin: 10px 0 6px;
  font-size: 16px;
  color: var(--text-dark);
}

.page-about .about-find__steps p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: #576574;
}

.page-about .about-response__head {
  margin-bottom: 8px;
}

.page-about .about-response__desc {
  max-width: 520px;
  margin: 0 0 24px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-dim);
}

.page-about .about-response__grid {
  display: grid;
  gap: 20px;
}

.page-about .about-response__sla {
  background: rgba(26, 31, 46, 0.5);
  border: 1px solid var(--about-line);
  border-radius: 16px;
  padding: 20px;
}

.page-about .about-response__sla-label {
  font-size: 12px;
  color: var(--about-dim);
  margin: 0 0 8px;
}

.page-about .about-response__sla-value {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--accent-yellow);
  line-height: 1.25;
}

.page-about .about-sla-bar__track {
  margin-top: 16px;
  height: 10px;
  border-radius: 999px;
  background: rgba(236, 240, 241, 0.14);
  overflow: hidden;
}

.page-about .about-sla-bar__fill {
  height: 100%;
  width: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--status-new) 0%, var(--accent-blue) 100%);
}

.page-about .about-response__sla-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--about-dim);
  margin-top: 8px;
}

.page-about .about-response__contacts {
  display: grid;
  gap: 12px;
}

.page-about .about-response__contact {
  background: rgba(244, 240, 230, 0.06);
  border: 1px solid var(--about-line);
  border-radius: 14px;
  padding: 14px;
}

.page-about .about-response__contact-label {
  display: block;
  font-size: 12px;
  color: var(--about-dim);
  margin-bottom: 6px;
}

.page-about .about-response__contact-value {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  word-break: break-word;
}

@media (max-width: 767px) {
  .page-about .data-table thead {
    display: none;
  }

  .page-about .data-table,
  .page-about .data-table tbody,
  .page-about .data-table tr,
  .page-about .data-table td {
    display: block;
    width: 100%;
  }

  .page-about .data-table tbody tr {
    padding: 6px 0;
    border-bottom: 1px solid var(--about-line);
  }

  .page-about .data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
  }

  .page-about .data-table td {
    display: grid;
    grid-template-columns: 92px 1fr;
    gap: 4px 10px;
    border: 0;
    padding: 4px 8px;
    font-size: 13px;
  }

  .page-about .data-table td::before {
    content: attr(data-label);
    color: var(--about-dim);
    font-size: 12px;
    padding-top: 1px;
  }

  .page-about .data-table td[data-label="内容类型"] {
    font-weight: 700;
    color: var(--accent-yellow);
  }

  .page-about .data-table td[data-label="内容类型"]::before {
    color: var(--about-dim);
    font-weight: 400;
  }
}

@media (min-width: 600px) {
  .page-about .about-response__contacts {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-response__contact--address {
    grid-column: 1 / -1;
  }
}

@media (min-width: 760px) {
  .page-about .about-find {
    padding: 36px 32px;
    margin: 36px 0;
  }

  .page-about .about-find__steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .page-about .about-scope__head,
  .page-about .about-dim__head,
  .page-about .about-updates__head,
  .page-about .about-find__head,
  .page-about .about-response__head {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }

  .page-about .about-scope__head p,
  .page-about .about-dim__head p,
  .page-about .about-updates__head p,
  .page-about .about-find__head p {
    max-width: 340px;
    text-align: right;
  }
}

@media (min-width: 780px) {
  .page-about .about-quick {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding: 34px 0;
  }
}

@media (min-width: 820px) {
  .page-about .about-response__grid {
    grid-template-columns: 0.75fr 1.25fr;
    align-items: center;
  }
}

@media (min-width: 920px) {
  .page-about .about-scope__body,
  .page-about .about-dim__body {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-about .about-scope__body {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

@media (min-width: 940px) {
  .page-about .about-updates__body {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }
}