/* ===== 品牌档案页 · 页面专属样式 ===== */

/* 品牌声明 */
.page-about .about-manifesto {
  position: relative;
  padding: 26px 0 44px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(123, 47, 247, .08) 1px, transparent 1px),
    linear-gradient(0deg, rgba(123, 47, 247, .08) 1px, transparent 1px),
    var(--c-bg);
  background-size: 48px 48px;
}

.page-about .about-manifesto .container {
  position: relative;
}

.page-about .about-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 18px 0 0;
  font-family: var(--font-data);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--c-text-dim);
  text-transform: uppercase;
}

.page-about .about-serial {
  padding: 3px 8px;
  border: 1px solid var(--c-primary);
  color: var(--c-primary);
  background: var(--c-primary-soft);
}

.page-about .about-manifesto h1 {
  max-width: 900px;
  margin: 18px 0 16px;
  font-family: var(--font-title);
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: .01em;
}

.page-about .about-ax {
  display: inline-block;
  padding: 0 .14em;
  color: var(--c-data);
  background: var(--c-data-soft);
  transform: skewX(-8deg);
}

.page-about .about-lead {
  max-width: 660px;
  margin: 0;
  color: var(--c-text-dim);
  line-height: 1.8;
  font-size: .96rem;
}

.page-about .about-manifesto-meta dl {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
}

.page-about .about-manifesto-meta dl > div {
  min-width: 120px;
  padding: 10px 14px;
  border-left: 3px solid var(--c-primary);
  background: var(--c-bg-2);
}

.page-about .about-manifesto-meta dt {
  font-size: .74rem;
  color: var(--c-text-dim);
  letter-spacing: .08em;
}

.page-about .about-manifesto-meta dd {
  margin: 4px 0 0;
  font-family: var(--font-data);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--c-data);
  line-height: 1;
}

.page-about .about-manifesto-coord {
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--font-data);
  font-size: .68rem;
  color: var(--c-primary);
  letter-spacing: .1em;
  opacity: .8;
}

/* 通用区块头部 */
.page-about .about-section-head {
  display: grid;
  gap: 8px;
  margin-bottom: 28px;
}

.page-about .about-section-note {
  max-width: 540px;
  margin: 0;
  color: var(--c-text-dim);
  line-height: 1.7;
  font-size: .94rem;
}

.page-about .about-section-head .section-title,
.page-about .about-stats-head .section-title {
  margin: 0;
}

/* 发展时间轴 */
.page-about .about-timeline {
  padding: 40px 0 52px;
  border-top: 2px solid var(--c-border);
}

.page-about .about-timeline-grid {
  display: grid;
  gap: 30px;
}

.page-about .about-tl-list {
  position: relative;
}

.page-about .about-tl-list::before {
  content: '';
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 11px;
  width: 2px;
  background: linear-gradient(to bottom, var(--c-primary), var(--c-border) 45%, var(--c-data));
}

.page-about .about-tl-item {
  position: relative;
  padding-left: 36px;
  margin-bottom: 22px;
}

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

.page-about .about-tl-node {
  position: absolute;
  top: 4px;
  left: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  font-family: var(--font-data);
  font-size: .68rem;
  font-weight: 700;
  color: var(--c-primary);
  background: var(--c-bg);
  border: 2px solid var(--c-primary);
  transition: var(--transition);
}

.page-about .about-tl-item:hover .about-tl-node,
.page-about .about-tl-item:focus-within .about-tl-node {
  color: var(--c-text);
  background: var(--c-primary);
  box-shadow: 0 0 0 4px var(--c-primary-soft);
}

.page-about .about-tl-card {
  position: relative;
  padding: 14px 16px 16px;
  background: var(--c-bg-2);
  border: 2px solid var(--c-border);
  transition: var(--transition);
}

.page-about .about-tl-item:hover .about-tl-card,
.page-about .about-tl-item:focus-within .about-tl-card {
  border-color: var(--c-primary);
  background: var(--c-bg-3);
}

.page-about .about-tl-card::after {
  content: '';
  position: absolute;
  right: -2px;
  bottom: -2px;
  width: 26px;
  height: 26px;
  background: linear-gradient(135deg, transparent 62%, var(--c-primary) 62%);
}

.page-about .about-tl-topline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-about .about-tl-period {
  font-family: var(--font-data);
  font-size: .76rem;
  letter-spacing: .05em;
  color: var(--c-text-dim);
}

.page-about .about-tl-card h3 {
  margin: 10px 0 6px;
  font-family: var(--font-title);
  font-size: 1.18rem;
  text-transform: uppercase;
  letter-spacing: .02em;
}

.page-about .about-tl-card p {
  margin: 0;
  color: var(--c-text-dim);
  line-height: 1.7;
  font-size: .93rem;
}

.page-about .about-tl-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--c-border-light);
}

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

.page-about .about-tl-facts li {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .8rem;
  color: var(--c-text-dim);
}

.page-about .about-tl-facts .data-number {
  color: var(--c-data);
  font-size: .92rem;
  font-weight: 700;
}

.page-about .about-tl-range {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 7px;
  border: 1px solid var(--c-border);
  font-family: var(--font-data);
  font-size: .7rem;
  color: var(--c-primary);
  background: var(--c-bg);
  transition: var(--transition);
}

.page-about .about-tl-item:hover .about-tl-range {
  border-color: var(--c-data);
  color: var(--c-data);
}

.page-about .about-tl-aside {
  display: grid;
  align-content: start;
  gap: 16px;
}

.page-about .about-tl-figure {
  margin: 0;
  border: 2px solid var(--c-border);
  background: var(--c-bg-2);
  box-shadow: var(--shadow-card);
}

.page-about .about-tl-figure img,
.page-about .about-stats-figure img,
.page-about .about-compliance-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-tl-figure figcaption,
.page-about .about-stats-figure figcaption,
.page-about .about-compliance-figure figcaption {
  padding: 9px 12px;
  border-top: 2px solid var(--c-border);
  font-family: var(--font-data);
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--c-text-dim);
}

.page-about .about-tl-legend {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  background: var(--c-bg-2);
  border: 2px solid var(--c-border);
}

.page-about .about-tl-legend p {
  display: flex;
  justify-content: space-between;
  margin: 0;
  font-size: .82rem;
  color: var(--c-text-dim);
}

.page-about .about-tl-legend .data-number {
  color: var(--c-data);
  font-weight: 700;
}

/* 数据实力概览 */
.page-about .about-stats {
  padding: 44px 0 54px;
  border-top: 2px solid var(--c-border);
  background:
    repeating-linear-gradient(-45deg, transparent 0 18px, rgba(57, 255, 20, .04) 18px 19px),
    var(--c-bg);
}

.page-about .about-stats-head {
  display: grid;
  gap: 8px;
  margin-bottom: 28px;
}

.page-about .about-stats-panel {
  display: grid;
  gap: 26px;
}

.page-about .about-stats-figure {
  margin: 0;
  border: 2px solid var(--c-border);
  box-shadow: var(--shadow-card);
}

.page-about .about-stats-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.page-about .about-stat-card {
  height: 180px;
  perspective: 900px;
}

.page-about .about-stat-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform .55s cubic-bezier(.2, .75, .3, 1);
}

.page-about .about-stat-card:hover .about-stat-inner,
.page-about .about-stat-card:focus-within .about-stat-inner {
  transform: rotateY(180deg);
}

.page-about .about-stat-face {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px;
  border: 2px solid var(--c-border);
  background: var(--c-bg-2);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.page-about .about-stat-face p {
  margin: 0;
  text-align: center;
  line-height: 1.6;
  font-size: .84rem;
  color: var(--c-text);
}

.page-about .about-stat-back {
  border-color: var(--c-primary);
  background: var(--c-primary-soft);
  transform: rotateY(180deg);
}

.page-about .about-stat-num {
  font-family: var(--font-data);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-data);
}

.page-about .about-stat-label {
  font-size: .74rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-text-dim);
}

/* 旧版资料回查 */
.page-about .about-archive {
  padding: 44px 0 54px;
  border-top: 2px solid var(--c-border);
  background: var(--c-bg-2);
}

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

.page-about .about-archive-copy .section-title {
  margin: 8px 0 10px;
}

.page-about .about-archive-copy > p:not(.section-title--sm) {
  margin: 0;
  color: var(--c-text-dim);
  line-height: 1.75;
}

.page-about .about-archive-steps {
  display: grid;
  gap: 8px;
  margin: 22px 0 26px;
  padding: 0;
  list-style: none;
}

.page-about .about-archive-steps li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--c-bg);
  border: 2px solid var(--c-border);
  transition: var(--transition);
}

.page-about .about-archive-steps li:hover {
  border-color: var(--c-data);
}

.page-about .about-archive-steps .data-number {
  width: 28px;
  color: var(--c-primary);
  font-weight: 700;
}

.page-about .about-archive-data {
  padding: 26px;
  background: var(--c-bg);
  border: 2px solid var(--c-border);
  box-shadow: var(--shadow-card);
}

.page-about .about-archive-metree {
  border-left: 4px solid var(--c-data);
  padding-left: 16px;
}

.page-about .about-archive-path-label {
  margin: 0 0 8px;
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-text-dim);
}

.page-about .about-archive-metree .data-number {
  display: inline-block;
  margin: 0 0 6px;
  font-size: 1.1rem;
  color: var(--c-text);
}

.page-about .about-archive-fields {
  margin: 0;
  font-size: .84rem;
  color: var(--c-text-dim);
  line-height: 1.6;
}

.page-about .about-archive-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--c-border-light);
  color: var(--c-text-dim);
  font-size: .84rem;
  line-height: 1.7;
}

/* 合规与备案 */
.page-about .about-compliance {
  padding: 44px 0 54px;
  border-top: 2px solid var(--c-border);
}

.page-about .about-compliance-grid {
  display: grid;
  gap: 26px;
}

.page-about .about-compliance-copy .section-title {
  margin: 8px 0 10px;
}

.page-about .about-compliance-copy > p:not(.section-title--sm) {
  margin: 0;
  color: var(--c-text-dim);
  line-height: 1.75;
}

.page-about .about-compliance-list {
  display: grid;
  margin: 20px 0 16px;
  border: 2px solid var(--c-border);
  background: var(--c-bg-2);
}

.page-about .about-compliance-list > div {
  display: grid;
  grid-template-columns: 118px 1fr;
}

.page-about .about-compliance-list dt {
  padding: 11px 12px;
  font-size: .78rem;
  color: var(--c-text-dim);
  background: var(--c-primary-soft);
}

.page-about .about-compliance-list dd {
  margin: 0;
  padding: 11px 12px;
  align-self: center;
  font-family: var(--font-data);
  font-size: .84rem;
  color: var(--c-text);
}

.page-about .about-compliance-note {
  font-size: .8rem;
  color: var(--c-text-dim);
}

.page-about .about-compliance-figure {
  margin: 0;
  border: 2px solid var(--c-border);
  box-shadow: var(--shadow-card);
}

/* 团队与组织 */
.page-about .about-team {
  padding: 44px 0 54px;
  border-top: 2px solid var(--c-border);
  background: var(--c-bg);
}

.page-about .about-team-grid {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.page-about .about-team-card {
  position: relative;
  padding: 18px 16px;
  border: 2px solid var(--c-border);
  background: var(--c-bg-2);
  transition: var(--transition);
}

.page-about .about-team-card:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.page-about .about-team-code {
  display: inline-block;
  padding: 2px 7px;
  border: 1px solid var(--c-border);
  font-family: var(--font-data);
  font-size: .72rem;
  color: var(--c-primary);
}

.page-about .about-team-card h3 {
  margin: 12px 0 8px;
  font-family: var(--font-title);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: .03em;
}

.page-about .about-team-card p {
  margin: 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--c-text-dim);
}

/* 页面收束 CTA */
.page-about .about-cta {
  padding: 48px 0;
  border-top: 2px solid var(--c-border);
  background:
    linear-gradient(100deg, var(--c-primary-soft) 0%, transparent 55%),
    var(--c-bg);
}

.page-about .about-cta .section-title {
  margin: 8px 0 8px;
}

.page-about .about-cta p {
  color: var(--c-text-dim);
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* 响应式布局 */
@media (min-width: 720px) {
  .page-about .about-tl-item {
    padding-left: 52px;
    margin-bottom: 28px;
  }

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

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

@media (min-width: 920px) {
  .page-about .about-timeline-grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 40px;
  }

  .page-about .about-stats-panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 40px;
    align-items: center;
  }

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

  .page-about .about-archive-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 48px;
    align-items: center;
  }

  .page-about .about-compliance-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-about .about-team-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}