/* ===== about 页面专属样式 ===== */
.page-about {
  --about-paper: #f1ebdc;
  --about-paper-deep: #e0d6bb;
  --about-ink: #162923;
  --about-ink-dim: #5d6d64;
  --about-gold-line: rgba(255, 215, 0, 0.32);
  --about-red: #8B0000;
  scroll-padding-top: 120px;
}
.page-about .container {
  max-width: 1080px;
  margin-inline: auto;
  padding-inline: 24px;
}
.page-about [data-toc-target] {
  scroll-margin-top: 120px;
}

/* 面包屑 */
.page-about .breadcrumb {
  display: flex;
  align-items: center;
  margin-bottom: 28px;
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--color-text-dim);
}
.page-about .breadcrumb-link {
  color: var(--color-gold);
  text-decoration: none;
  border-bottom: 1px solid var(--about-gold-line);
}
.page-about .breadcrumb-link:hover {
  color: var(--color-amber);
}
.page-about .breadcrumb-sep {
  margin-inline: 10px;
  color: var(--color-text-dim);
}
.page-about .breadcrumb-current {
  color: var(--color-text);
}

/* 页头区 */
.page-about .about-hero {
  position: relative;
  padding: 32px 0 0;
  overflow: hidden;
  background: var(--color-bg);
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}
.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
  padding-bottom: 36px;
}
.page-about .about-vert-mark {
  position: absolute;
  z-index: 1;
  right: 8px;
  top: 32px;
  writing-mode: vertical-rl;
  font-family: var(--font-data);
  color: var(--color-gold);
  opacity: 0.55;
  letter-spacing: 0.2em;
  font-size: 12px;
  text-transform: uppercase;
}
.page-about .about-hero-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.page-about .skew-tag {
  display: inline-block;
  padding: 3px 8px;
  background: var(--color-red);
  color: var(--color-text);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  transform: skewX(-8deg);
}
.page-about .about-hero h1 {
  margin: 16px 0 18px;
  font-family: var(--font-title);
  font-size: clamp(36px, 6.4vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.page-about .about-hero-lead {
  max-width: 620px;
  margin-bottom: 28px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--color-text-dim);
}
.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.page-about .about-hero-ticker {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 24px;
  overflow-x: auto;
  margin-bottom: 28px;
  padding: 12px 0;
  border-top: 1px solid var(--about-gold-line);
  border-bottom: 1px solid var(--about-gold-line);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--color-amber);
  white-space: nowrap;
}
.page-about .about-hero-bars {
  height: 20px;
  background: repeating-linear-gradient(
    -45deg,
    rgba(255, 215, 0, 0.28) 0 14px,
    transparent 14px 28px
  );
}

/* 章节通用 */
.page-about .about-section {
  padding-block: 48px;
  border-block: 1px solid rgba(255, 255, 255, 0.04);
}
.page-about .about-section:nth-of-type(odd) {
  background: var(--color-bg);
}
.page-about .about-section:nth-of-type(even) {
  background: var(--color-bg-card);
}
.page-about .about-head {
  margin-bottom: 36px;
}
.page-about .about-head h2 {
  margin: 6px 0 0;
  font-family: var(--font-title);
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.25;
  color: var(--color-text);
}
.page-about .about-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold);
}
.page-about .about-index {
  color: var(--color-red);
  font-weight: 700;
}
.page-about .about-head-note {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-dim);
}
.page-about .about-head-intro {
  min-width: 0;
}
@media (min-width: 900px) {
  .page-about .about-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
  }
  .page-about .about-head-note {
    margin-top: 0;
    max-width: 260px;
    text-align: right;
  }
}

/* 品牌定位 */
.page-about .position-layout {
  display: grid;
  gap: 40px;
}
.page-about .position-papers {
  position: relative;
  min-height: 220px;
  margin-top: 14px;
}
.page-about .paper-card {
  position: relative;
  z-index: 1;
  max-width: 620px;
  padding: 28px 24px;
  color: var(--about-ink);
  background: var(--about-paper);
  border: 1px solid var(--about-ink);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.2);
}
.page-about .paper-card-top {
  border-top: 4px solid var(--color-gold);
}
.page-about .paper-card-back {
  position: absolute;
  z-index: 0;
  inset: 14px 10px -8px 22px;
  transform: rotate(-1.6deg);
  background: var(--about-paper-deep);
  box-shadow: 4px 6px 0 rgba(0, 0, 0, 0.16);
}
.page-about .paper-card-back::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px dashed rgba(22, 41, 35, 0.35);
  pointer-events: none;
}
.page-about .paper-label {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 10px;
  background: var(--about-ink);
  color: var(--color-gold);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.08em;
}
.page-about .paper-text {
  margin-bottom: 10px;
  font-size: 15px;
  line-height: 1.75;
}
.page-about .paper-list {
  margin: 0;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
}
.page-about .paper-list li::marker {
  color: var(--color-red);
}

/* 品牌定位侧栏 */
.page-about .position-aside {
  position: relative;
}
.page-about .about-toc {
  margin-bottom: 20px;
  padding: 18px 20px;
  background: var(--color-bg-deep);
  border: 1px solid var(--about-gold-line);
  border-left: 4px solid var(--color-gold);
}
.page-about .about-toc-title {
  margin-bottom: 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold);
}
.page-about .about-toc-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: toc;
}
.page-about .about-toc-link {
  display: flex;
  gap: 10px;
  align-items: center;
  padding-block: 5px;
  color: var(--color-text);
  text-decoration: none;
  font-size: 15px;
}
.page-about .about-toc-link::before {
  counter-increment: toc;
  content: "0" counter(toc);
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--color-gold);
}
.page-about .about-toc-link:hover {
  color: var(--color-gold);
}
.page-about .about-principle {
  margin: 0 auto 0 0;
  max-width: 300px;
}
.page-about .about-principle p:first-child {
  margin-bottom: 6px;
  font-weight: 700;
  color: var(--color-gold);
}
.page-about .aside-vert {
  position: absolute;
  right: -10px;
  top: 44px;
  writing-mode: vertical-rl;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  opacity: 0.5;
}
@media (min-width: 900px) {
  .page-about .position-layout {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: start;
  }
}

/* 运营数据 */
.page-about .stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 26px;
}
.page-about .stat-block {
  position: relative;
  padding: 20px 18px;
  background: var(--color-bg-deep);
  border: 1px solid var(--about-gold-line);
  border-top: 4px solid var(--color-gold);
}
.page-about .stat-label {
  margin-bottom: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}
.page-about .stat-number {
  margin: 0 0 10px;
  font-family: var(--font-data);
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1;
  color: var(--color-gold);
  letter-spacing: -0.02em;
}
.page-about .stat-number .data-strong {
  font-size: 1.08em;
  color: var(--color-amber);
}
.page-about .stat-number sup {
  font-size: 0.5em;
  vertical-align: super;
  margin-left: 2px;
}
.page-about .stat-number .stat-sub {
  margin-left: 4px;
  font-size: 0.48em;
  color: var(--color-text);
}
.page-about .stat-foot {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-dim);
}
.page-about .stats-update-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-bottom: 28px;
  padding-block: 12px;
  border-top: 1px dashed var(--about-gold-line);
  border-bottom: 1px dashed var(--about-gold-line);
  font-size: 14px;
  color: var(--color-text);
}
.page-about .stats-update-strip span {
  position: relative;
  padding-left: 14px;
}
.page-about .stats-update-strip span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  transform: rotate(45deg);
  background: var(--color-red);
}
@media (min-width: 900px) {
  .page-about .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
}

/* 发展历程 */
.page-about .about-journey {
  padding-bottom: 48px;
}
.page-about .journey-scroll {
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-gold) var(--color-bg-deep);
}
.page-about .journey-track {
  display: flex;
  gap: 20px;
  width: max-content;
  min-width: 100%;
  margin: 0 auto;
  padding: 12px 24px 28px;
  list-style: none;
}
@media (min-width: 1080px) {
  .page-about .journey-track {
    padding-inline: calc((100vw - 1080px) / 2);
  }
}
.page-about .journey-node {
  display: flex;
  flex-direction: column;
  width: 240px;
  flex: 0 0 auto;
}
.page-about .journey-node-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--about-gold-line);
}
.page-about .journey-season {
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--color-gold);
  letter-spacing: 0.04em;
}
.page-about .journey-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-bg-deep);
  border: 3px solid var(--color-gold);
  box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.14);
  flex-shrink: 0;
}
.page-about .journey-dot-gold {
  background: var(--color-gold);
}
.page-about .journey-card {
  position: relative;
  flex: 1;
  padding: 22px 18px 34px;
  color: var(--about-ink);
  background: var(--about-paper);
  border: 1px solid #c9bfa2;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.14);
}
.page-about .journey-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-size: 17px;
  line-height: 1.4;
  color: var(--about-ink);
}
.page-about .journey-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--about-ink-dim);
}
.page-about .journey-tag {
  position: absolute;
  right: 14px;
  bottom: 12px;
  padding: 2px 8px;
  background: var(--color-red);
  color: var(--color-text);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.06em;
}
.page-about .journey-tag-gold {
  background: var(--color-gold);
  color: var(--about-ink);
}
.page-about .journey-card-current {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.2), 6px 6px 0 rgba(0, 0, 0, 0.14);
}
.page-about .journey-scroll-hint {
  margin: 8px 0 20px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-align: center;
  color: var(--color-gold);
  opacity: 0.7;
}

/* 团队与生态 */
.page-about .team-grid {
  display: grid;
  gap: 36px;
}
.page-about .team-copy {
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.8;
}
.page-about .team-copy p {
  margin-bottom: 14px;
}
.page-about .team-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 24px 0 0;
}
.page-about .team-fact {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  background: var(--color-bg-deep);
  border-left: 3px solid var(--color-gold);
}
.page-about .team-fact dt {
  font-size: 13px;
  color: var(--color-text-dim);
}
.page-about .team-fact dd {
  margin: 0;
  font-family: var(--font-data);
  color: var(--color-gold);
  font-size: 14px;
  letter-spacing: 0.04em;
}
@media (min-width: 900px) {
  .page-about .team-grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }
  .page-about .team-facts {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 图片容器 */
.page-about .about-image-box {
  margin: 0;
  border: 1px solid var(--about-gold-line);
  background: var(--color-bg-deep);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.18);
}
.page-about .about-image-box img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-about .about-image-box figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--about-gold-line);
  font-size: 13px;
  color: var(--color-text-dim);
  background: var(--color-bg-deep);
}
.page-about .about-image-stats {
  margin-top: 24px;
}
.page-about .about-image-stats img {
  aspect-ratio: 4 / 3;
}
.page-about .about-image-journey img {
  aspect-ratio: 5 / 2;
}
.page-about .about-image-team img {
  aspect-ratio: 3 / 2;
}

/* 延伸入口 */
.page-about .about-more {
  padding-block: 48px;
  background: var(--color-bg-deep);
  border-block: 4px solid var(--color-gold);
}
.page-about .about-more-grid {
  display: grid;
  gap: 16px;
}
.page-about .about-more-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 14px;
  align-items: baseline;
  padding: 20px;
  color: var(--color-text);
  text-decoration: none;
  background: var(--color-bg-card);
  border: 1px solid var(--about-gold-line);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.page-about .about-more-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-gold);
}
.page-about .more-card-index {
  grid-row: span 2;
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--color-gold);
}
.page-about .more-card-title {
  font-family: var(--font-title);
  font-size: 18px;
  color: var(--color-amber);
}
.page-about .more-card-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-dim);
}
@media (min-width: 900px) {
  .page-about .about-more-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

/* 移动端窄屏适配 */
@media (max-width: 560px) {
  .page-about .about-vert-mark {
    display: none;
  }
  .page-about .paper-card {
    padding: 22px 16px;
  }
  .page-about .about-hero-lead {
    font-size: 15px;
  }
  .page-about .stat-foot {
    font-size: 12px;
  }
  .page-about .team-fact {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}
@media (min-width: 768px) {
  .page-about .about-section {
    padding-block: 64px;
  }
  .page-about .about-more {
    padding-block: 64px;
  }
}
</main>