/* ==============================================
   PAGE-ABOUT · 品牌介绍页专属样式
   作用域：.page-about
   ============================================== */

/* ---- 页面基础 ---- */
.page-about {
  background: var(--bg-dark);
  color: var(--silver);
  overflow-x: hidden;
}

/* ---- 首屏 Hero ---- */
.page-about .about-hero {
  position: relative;
  padding: 2rem 0 3rem;
  border-bottom: 3px solid var(--electric-blue);
  background:
    radial-gradient(circle at 85% 18%, rgba(0, 229, 255, 0.09) 0%, transparent 46%),
    linear-gradient(135deg, transparent 60%, rgba(57, 255, 20, 0.06) 100%);
}

.page-about .about-hero-visual {
  position: absolute;
  right: -0.75rem;
  top: 3.2rem;
  z-index: 0;
  pointer-events: none;
  font-family: var(--heading-font);
  font-size: 7rem;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px rgba(0, 229, 255, 0.34);
  transform: skewX(-10deg);
  text-align: center;
}

.page-about .about-hero-visual span {
  display: block;
}

.page-about .about-hero-visual em {
  display: block;
  font-style: normal;
  font-family: var(--heading-font);
  font-size: 0.78rem;
  letter-spacing: 0.38em;
  color: var(--electric-blue);
  margin-top: -0.4rem;
  margin-left: 0.4rem;
}

.page-about .about-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 46rem;
}

.page-about .about-hero .breadcrumb {
  margin-bottom: 1.5rem;
}

.page-about .about-hero h1 {
  font-family: var(--heading-font);
  font-size: 2.5rem;
  line-height: 1.05;
  color: var(--bg-paper);
  margin: 0.6rem 0 0.4rem;
  transform: skewX(-2deg);
}

.page-about .about-hero-lead {
  font-family: var(--heading-font);
  font-size: 1.2rem;
  color: var(--neon-green);
  margin: 0 0 1.2rem;
  letter-spacing: 0.03em;
}

.page-about .about-hero-desc {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--silver);
  max-width: 42rem;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.75rem;
}

/* ---- Hero 数据条 ---- */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.1rem;
  margin-top: 2.4rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(224, 230, 237, 0.18);
  position: relative;
  z-index: 2;
}

.page-about .about-stat {
  border-left: 3px solid var(--gold);
  padding-left: 0.9rem;
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--heading-font);
  font-size: 1.5rem;
  line-height: 1.1;
  color: var(--neon-green);
}

.page-about .about-stat-label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  color: var(--silver);
}

/* ---- 章节头 ---- */
.page-about .section-head {
  max-width: 820px;
  margin-bottom: 2rem;
}

.page-about .section-head h2 {
  font-family: var(--heading-font);
  font-size: 1.8rem;
  line-height: 1.2;
  color: var(--bg-paper);
  margin: 0.5rem 0 0;
  transform: skewX(-2deg);
}

.page-about .section-title {
  color: var(--neon-green);
  font-family: var(--heading-font);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---- 品牌故事 ---- */
.page-about .about-story-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-about .prose > p {
  color: var(--silver);
  font-size: 1rem;
  line-height: 1.75;
}

.page-about .prose > p + p {
  margin-top: 1rem;
}

.page-about .about-story-img {
  margin: 0;
  border: var(--border-w) solid var(--electric-blue);
  box-shadow: var(--shadow-hard);
  background: var(--bg-panel);
  transform: rotate(-1deg);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-story-img:hover {
  transform: rotate(0deg) translateY(-4px);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.45);
}

.page-about .about-story-img img,
.page-about .about-timeline-img img,
.page-about .about-local-img img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-story-img figcaption,
.page-about .about-timeline-img figcaption,
.page-about .about-local-img figcaption {
  padding: 0.7rem 1rem;
  font-size: 0.82rem;
  color: var(--silver);
  border-top: 2px solid var(--bg-dark);
}

/* ---- 发展历程 ---- */
.page-about .section-dark {
  background: linear-gradient(180deg, var(--bg-dark) 0%, #0B1018 100%);
}

.page-about .about-timeline {
  list-style: none;
  margin: 2.6rem 0 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--gold) 0%, var(--electric-blue) 55%, var(--neon-green) 100%);
  transform: skewX(-14deg);
  transform-origin: top;
}

.page-about .timeline-item {
  position: relative;
  padding-left: 2.6rem;
  padding-bottom: 2.2rem;
  transition: background 0.2s ease;
}

.page-about .timeline-item:last-child {
  padding-bottom: 0;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.4rem;
  width: 16px;
  height: 16px;
  background: var(--bg-dark);
  border: 3px solid var(--gold);
  transform: skewX(-14deg);
  z-index: 1;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-about .timeline-item:hover::before {
  background: var(--gold);
}

.page-about .timeline-item:hover .timeline-body {
  border-left-color: var(--neon-green);
}

.page-about .timeline-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 0.6rem;
}

.page-about .timeline-year {
  font-family: var(--heading-font);
  font-size: 1.05rem;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-about .version-chip {
  display: inline-block;
  background: var(--electric-blue);
  color: var(--bg-dark);
  font-family: var(--heading-font);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  padding: 0.18rem 0.55rem;
  transform: skewX(-6deg);
  border: 2px solid var(--electric-blue);
}

.page-about .timeline-body {
  border-left: 3px solid var(--bg-panel);
  transition: border-color 0.2s ease;
}

.page-about .timeline-body h3 {
  font-family: var(--heading-font);
  font-size: 1.25rem;
  color: var(--bg-paper);
  margin: 0 0 0.45rem;
}

.page-about .timeline-body p {
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--silver);
  max-width: 44rem;
}

.page-about .about-timeline-img {
  margin: 2.6rem 0 0;
  border: var(--border-w) solid var(--electric-blue);
  box-shadow: var(--shadow-hard);
  background: var(--bg-panel);
}

/* ---- 数据体系（暖纸色反色） ---- */
.page-about .about-data {
  background: var(--bg-paper);
  color: #242424;
}

.page-about .about-data .section-head h2 {
  color: #0D1117;
}

.page-about .about-data .section-title {
  color: #1C6B13;
}

.page-about .about-data-grid {
  display: grid;
  gap: 1.4rem;
}

.page-about .about-data-panel {
  background: rgba(255, 255, 255, 0.5);
  border: 3px solid #0D1117;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.22);
  padding: 1.4rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.page-about .about-data-panel:hover {
  transform: translate3d(-3px, -3px, 0);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.28);
  background: rgba(255, 255, 255, 0.72);
}

.page-about .about-data-panel h3 {
  font-family: var(--heading-font);
  font-size: 1.1rem;
  color: #0D1117;
  margin: 0 0 0.7rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.page-about .about-data-panel h3::before {
  content: "";
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  background: var(--neon-green);
  border: 2px solid #0D1117;
  transform: skewX(-10deg);
}

.page-about .about-data-panel p {
  color: #303030;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---- 覆盖明细 ---- */
.page-about .about-coverage-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 2.4rem 0 1.1rem;
}

.page-about .about-coverage-head h3 {
  font-family: var(--heading-font);
  font-size: 1.15rem;
  color: #0D1117;
  margin: 0;
}

.page-about .about-coverage {
  display: grid;
  gap: 0.7rem;
}

.page-about .coverage-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.42);
  border: 2px solid #0D1117;
  padding: 0.65rem 0.85rem;
  cursor: default;
  transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.page-about .coverage-row:hover {
  background: rgba(57, 255, 20, 0.3);
  transform: translateX(6px);
  border-color: #0D1117;
}

.page-about .coverage-tag {
  font-family: var(--heading-font);
  font-size: 0.82rem;
  color: #0D1117;
  background: var(--neon-green);
  border: 2px solid #0D1117;
  padding: 0.14rem 0.5rem;
  transform: skewX(-6deg);
  flex: 0 0 auto;
}

.page-about .coverage-row:nth-child(even) .coverage-tag {
  background: var(--electric-blue);
}

.page-about .coverage-desc {
  font-size: 0.9rem;
  color: #222;
  line-height: 1.5;
}

/* ---- 数据体系底注 ---- */
.page-about .about-data-footer {
  margin-top: 2.2rem;
  padding: 1.2rem 1.3rem;
  background: rgba(255, 255, 255, 0.35);
  border-left: 5px solid var(--gold);
}

.page-about .about-data-footer p {
  margin: 0;
  color: #333;
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---- 版本对照 ---- */
.page-about .about-versions-lead {
  max-width: 860px;
  margin: 0 0 2rem;
  padding-left: 1.1rem;
  border-left: 4px solid var(--neon-green);
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--silver);
}

.page-about .about-versions-grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .version-card {
  background: var(--bg-panel);
  border: var(--border-w) solid var(--electric-blue);
  box-shadow: var(--shadow-sm);
  padding: 1.6rem 1.4rem;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-about .version-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hard);
}

.page-about .version-card h3 {
  font-family: var(--heading-font);
  font-size: 2.4rem;
  line-height: 1;
  margin: 0 0 0.2rem;
  color: transparent;
  -webkit-text-stroke: 2px var(--electric-blue);
  transform: skewX(-6deg);
}

.page-about .version-tagline {
  font-family: var(--heading-font);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--electric-blue);
  margin: 0 0 1.2rem;
}

.page-about .version-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .version-card li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.65rem;
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--silver);
}

.page-about .version-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.6em;
  height: 0.6em;
  background: var(--electric-blue);
  transform: skewX(-12deg);
}

.page-about .version-v4 {
  border-color: var(--gold);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.45);
}

.page-about .version-v4 h3 {
  -webkit-text-stroke: 2px var(--gold);
}

.page-about .version-v4 .version-tagline {
  color: var(--gold);
}

.page-about .version-v4 li::before {
  background: var(--gold);
}

.page-about .version-v4:hover {
  border-color: var(--neon-green);
}

/* ---- 河南本地化 ---- */
.page-about .about-local {
  position: relative;
  border-top: 3px solid var(--electric-blue);
  border-bottom: 3px solid var(--electric-blue);
  background:
    linear-gradient(135deg, transparent 75%, rgba(0, 229, 255, 0.08) 75%),
    var(--bg-dark);
}

.page-about .about-local-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-about .about-local-copy > p:first-child {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--silver);
  max-width: 46rem;
}

.page-about .about-local-list {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
}

.page-about .about-local-list li {
  display: flex;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(224, 230, 237, 0.14);
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--silver);
}

.page-about .local-label {
  flex: 0 0 5.8em;
  font-family: var(--heading-font);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--neon-green);
}

.page-about .about-local-note {
  margin-top: 1.1rem;
  padding-left: 0.85rem;
  border-left: 3px solid var(--gold);
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(224, 230, 237, 0.75);
}

.page-about .about-local-img {
  margin: 0;
  border: var(--border-w) solid var(--electric-blue);
  box-shadow: var(--shadow-hard);
  background: var(--bg-panel);
  transition: transform 0.2s ease;
}

.page-about .about-local-img:hover {
  transform: rotate(1deg);
}

/* ---- 底部 CTA ---- */
.page-about .about-cta {
  background: var(--bg-panel);
  border-top: 4px solid var(--neon-green);
}

.page-about .about-cta-grid {
  display: grid;
  gap: 1.2rem;
}

.page-about .cta-card {
  display: block;
  background: var(--bg-dark);
  border: var(--border-w) solid var(--electric-blue);
  box-shadow: var(--shadow-sm);
  padding: 1.7rem 1.4rem;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-about .cta-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-hard);
}

.page-about .cta-card h3 {
  font-family: var(--heading-font);
  font-size: 1.3rem;
  color: var(--bg-paper);
  margin: 0 0 0.5rem;
}

.page-about .cta-card p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--silver);
  margin: 0;
}

.page-about .cta-arrow {
  display: inline-block;
  margin-top: 0.8rem;
  font-family: var(--heading-font);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--electric-blue);
  transition: letter-spacing 0.2s ease;
}

.page-about .cta-card:hover .cta-arrow {
  letter-spacing: 0.1em;
}

.page-about .cta-apps {
  border-color: var(--neon-green);
}

.page-about .cta-apps .cta-arrow {
  color: var(--neon-green);
}

.page-about .cta-apps:hover {
  background: rgba(57, 255, 20, 0.06);
}

.page-about .cta-journal {
  border-color: var(--electric-blue);
}

.page-about .cta-journal .cta-arrow {
  color: var(--electric-blue);
}

.page-about .cta-journal:hover {
  background: rgba(0, 229, 255, 0.06);
}

.page-about .cta-connect {
  border-color: var(--gold);
}

.page-about .cta-connect .cta-arrow {
  color: var(--gold);
}

.page-about .cta-connect:hover {
  background: rgba(255, 201, 71, 0.05);
}

/* ===== 平板端 ===== */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 3rem 0 4rem;
  }

  .page-about .about-hero h1 {
    font-size: 3.2rem;
  }

  .page-about .about-hero-lead {
    font-size: 1.4rem;
  }

  .page-about .about-hero-visual {
    font-size: 11rem;
    right: 1rem;
    top: 2.2rem;
    -webkit-text-stroke: 3px rgba(0, 229, 255, 0.4);
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }

  .page-about .about-stat-num {
    font-size: 1.8rem;
  }

  .page-about .section-head h2 {
    font-size: 2.2rem;
  }

  .page-about .about-story-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 2.5rem;
  }

  .page-about .about-timeline::before {
    left: 218px;
    transform: skewX(-10deg);
  }

  .page-about .timeline-item {
    display: grid;
    grid-template-columns: 220px 1fr;
    column-gap: 2.2rem;
    padding-left: 0;
  }

  .page-about .timeline-item::before {
    left: 212px;
    top: 0.45rem;
    transform: skewX(-10deg);
  }

  .page-about .timeline-meta {
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    padding-right: 1.4rem;
    margin-bottom: 0;
  }

  .page-about .version-chip {
    margin-top: 0.35rem;
  }

  .page-about .timeline-body {
    padding-left: 1.4rem;
  }

  .page-about .about-data-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.6rem;
  }

  .page-about .about-versions-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .page-about .about-local-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2.5rem;
  }

  .page-about .about-cta-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

/* ===== 桌面端微调 ===== */
@media (min-width: 1024px) {
  .page-about .about-hero-desc {
    font-size: 1.05rem;
  }

  .page-about .about-hero-visual {
    font-size: 13rem;
    right: 3rem;
    top: 1.5rem;
  }

  .page-about .about-hero h1 {
    font-size: 3.6rem;
  }

  .page-about .section-head h2 {
    font-size: 2.4rem;
  }

  .page-about .timeline-item {
    grid-template-columns: 240px 1fr;
    column-gap: 2.5rem;
  }

  .page-about .about-timeline::before {
    left: 238px;
  }

  .page-about .timeline-item::before {
    left: 232px;
  }

  .page-about .timeline-year {
    font-size: 1.3rem;
  }

  .page-about .about-data-panel {
    padding: 1.7rem;
  }

  .page-about .version-card {
    padding: 2rem 1.8rem;
  }

  .page-about .cta-card {
    padding: 2rem 1.8rem;
  }
}