/* ==========================================================
   品牌档案 /company/ · page-about 页面专属样式
   作用域限定 .page-about，移动端优先，含桌面断点
   ========================================================== */
.page-about {
  --about-line: rgba(192, 192, 192, 0.22);
  --about-line-strong: rgba(192, 192, 192, 0.45);
  background: var(--color-bg-deep);
}

.page-about .breadcrumb {
  margin-top: 20px;
}

/* 锚点滚动偏移 */
.page-about [id] {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-about img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 Hero ---------- */
.page-about .page-about-hero {
  position: relative;
  overflow: hidden;
  padding: 44px 0 52px;
  border-bottom: 1px solid var(--about-line);
}

.page-about .page-about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -8%;
  width: 42%;
  height: 10px;
  background: var(--color-accent-orange);
  transform: skewX(-22deg);
}

.page-about .page-about-hero::after {
  content: "";
  position: absolute;
  top: 26px;
  right: 3%;
  width: 180px;
  height: 1px;
  background: var(--color-accent-green);
  transform: rotate(-14deg);
  opacity: 0.55;
}

.page-about .page-about-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
}

.page-about .page-about-kicker {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  color: var(--color-accent-orange);
  text-transform: uppercase;
  margin: 0 0 14px;
}

.page-about .page-about-hero-copy h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 7.6vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin: 0 0 22px;
  border-left: 6px solid var(--color-accent-orange);
  padding-left: 18px;
}

.page-about .page-about-hero-lead {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text-light);
  max-width: 58ch;
  margin: 0 0 28px;
}

.page-about .page-about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .page-about-hero-side {
  display: none;
}

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

.page-about .page-about-hero-stats .stat-card {
  position: relative;
  background: var(--color-bg-panel);
  border: 1px solid var(--about-line);
  padding: 18px 16px;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition);
}

.page-about .page-about-hero-stats .stat-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 14px;
  height: 14px;
  background: var(--color-accent-orange);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

.page-about .page-about-hero-stats .stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-green);
}

.page-about .page-about-hero-stats .stat-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-accent-green);
  display: block;
}

.page-about .page-about-hero-stats .stat-label {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--color-text-light);
  display: block;
  margin-top: 6px;
}

.page-about .page-about-live-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent-green);
  margin-right: 8px;
  vertical-align: middle;
  box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.15);
  animation: page-about-blink 1.6s ease-in-out infinite;
}

@keyframes page-about-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ---------- 本页目录 ---------- */
.page-about .page-about-toc {
  padding: 22px 0;
  border-bottom: 1px solid var(--about-line);
}

.page-about .page-about-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 20px;
}

.page-about .page-about-toc a {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text-light);
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.page-about .page-about-toc a:hover,
.page-about .page-about-toc a:focus-visible {
  color: var(--color-white);
  border-bottom-color: var(--color-accent-orange);
}

.page-about .page-about-toc a span {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-accent-orange);
}

/* ---------- 章节通用 ---------- */
.page-about .page-about-section-index {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--color-accent-orange);
  text-transform: uppercase;
  margin: 0 0 12px;
}

.page-about h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.625rem, 4vw, 2.5rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--color-white);
  margin: 0 0 22px;
}

.page-about h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  line-height: 1.25;
  color: var(--color-white);
  letter-spacing: 0.01em;
  margin: 0 0 8px;
}

.page-about .page-about-mission h2,
.page-about .page-about-history h2,
.page-about .page-about-team h2,
.page-about .page-about-honors h2 {
  position: relative;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--about-line);
  margin-bottom: 28px;
}

.page-about .page-about-mission h2::after,
.page-about .page-about-history h2::after,
.page-about .page-about-team h2::after,
.page-about .page-about-honors h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 64px;
  height: 6px;
  background: var(--color-accent-orange);
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

/* ---------- 01 我们是谁 ---------- */
.page-about .page-about-mission {
  padding: 64px 0 72px;
  border-bottom: 1px solid var(--about-line);
}

.page-about .page-about-mission-narrow {
  max-width: 720px;
}

.page-about .page-about-mission p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text-light);
  margin: 0 0 16px;
}

.page-about .page-about-mission .page-about-mission-lead {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--color-white);
  margin-bottom: 24px;
}

.page-about .page-about-mission a {
  color: var(--color-accent-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 230, 118, 0.45);
  transition: color var(--transition), border-color var(--transition);
}

.page-about .page-about-mission a:hover,
.page-about .page-about-mission a:focus-visible {
  color: var(--color-white);
  border-bottom-color: var(--color-white);
}

.page-about .page-about-mission .page-about-trust {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--color-white);
  border-left: 5px solid var(--color-accent-orange);
  padding: 6px 0 6px 18px;
  margin-top: 32px;
}

/* ---------- 02 发展历程 ---------- */
.page-about .page-about-history {
  padding: 64px 0 72px;
  border-bottom: 1px solid var(--about-line);
  background: linear-gradient(180deg, rgba(255, 107, 53, 0.05), transparent 38%),
    var(--color-bg-deep);
}

.page-about .page-about-history-grid {
  display: grid;
  gap: 32px;
  margin-top: 12px;
}

.page-about .page-about-history-figure {
  margin: 0;
}

.page-about .page-about-history-figure img {
  display: block;
  width: 100%;
  border: 2px solid var(--about-line-strong);
}

.page-about .page-about-figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-silver);
  margin-top: 8px;
}

.page-about .page-about-timeline {
  display: grid;
  gap: 24px;
}

.page-about .page-about-timeline-svg {
  width: 100%;
  max-width: 300px;
  height: auto;
  justify-self: start;
}

.page-about .page-about-timeline-path {
  stroke: var(--color-accent-green);
  stroke-width: 2;
  stroke-dasharray: 3 7;
  fill: none;
}

.page-about .page-about-timeline-node circle {
  fill: var(--color-accent-orange);
  stroke: var(--color-bg-deep);
  stroke-width: 3;
}

.page-about .page-about-timeline-node-last circle {
  fill: var(--color-accent-green);
}

.page-about .page-about-timeline-year {
  fill: var(--color-white);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
}

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

.page-about .page-about-milestone {
  background: var(--color-bg-panel);
  border: 1px solid var(--about-line);
  border-left: 4px solid var(--color-accent-orange);
  padding: 20px 18px;
  transition: transform var(--transition), border-color var(--transition);
}

.page-about .page-about-milestone:hover {
  transform: translateX(4px);
  border-color: var(--color-accent-orange);
}

.page-about .page-about-milestone .page-about-milestone-tag {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--color-accent-orange);
  text-transform: uppercase;
  margin: 0 0 8px;
}

.page-about .page-about-milestone p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-light);
  margin: 0;
}

.page-about .page-about-milestone h3 {
  margin-bottom: 10px;
}

/* ---------- 03 团队与能力 ---------- */
.page-about .page-about-team {
  padding: 64px 0 72px;
  border-bottom: 1px solid var(--about-line);
}

.page-about .page-about-team-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-about .page-about-team-copy p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text-light);
  margin: 0 0 18px;
}

.page-about .page-about-capability-list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .page-about-capability-item {
  background: var(--color-bg-panel);
  border-left: 3px solid var(--color-accent-orange);
  padding: 14px 16px;
}

.page-about .page-about-capability-item dt {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  letter-spacing: 0.05em;
  color: var(--color-white);
  text-transform: uppercase;
  margin-bottom: 5px;
}

.page-about .page-about-capability-item dd {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-text-light);
  margin: 0;
}

.page-about .page-about-team-figure {
  margin: 0;
}

.page-about .page-about-team-figure img {
  display: block;
  width: 100%;
  border: 2px solid var(--about-line-strong);
}

/* ---------- 04 资质与荣誉 ---------- */
.page-about .page-about-honors {
  padding: 64px 0 72px;
  border-bottom: 1px solid var(--about-line);
  background: linear-gradient(135deg, rgba(0, 230, 118, 0.04), transparent 52%),
    var(--color-bg-deep);
}

.page-about .page-about-honor-list {
  display: grid;
  gap: 20px;
  margin-top: 12px;
}

.page-about .page-about-honor-card {
  position: relative;
  background: var(--color-bg-panel);
  border: 2px solid var(--color-accent-orange);
  padding: 26px 22px 22px;
  outline: none;
  transition: transform var(--transition), box-shadow var(--transition);
}

.page-about .page-about-honor-card:hover,
.page-about .page-about-honor-card:focus-within,
.page-about .page-about-honor-card:focus-visible {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-lg);
}

.page-about .page-about-honor-badge {
  display: inline-block;
  background: var(--color-accent-orange);
  color: var(--color-bg-deep);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 7px 14px 7px 11px;
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  margin-bottom: 16px;
}

.page-about .page-about-honor-card h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.page-about .page-about-honor-summary {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-light);
  margin: 0 0 14px;
}

.page-about .page-about-honor-detail {
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-silver);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  padding-top: 0;
  border-top: 1px dashed transparent;
  transition: max-height 0.4s ease, opacity 0.4s ease, margin-top 0.3s ease, padding-top 0.3s ease;
}

.page-about .page-about-honor-card:hover .page-about-honor-detail,
.page-about .page-about-honor-card:focus-within .page-about-honor-detail,
.page-about .page-about-honor-card:focus-visible .page-about-honor-detail {
  max-height: 220px;
  opacity: 1;
  margin-top: 14px;
  padding-top: 14px;
  border-top-color: var(--about-line-strong);
}

.page-about .page-about-honors-figure {
  margin: 28px 0 0;
}

.page-about .page-about-honors-figure img {
  display: block;
  width: 100%;
  border: 1px solid var(--about-line);
}

/* ---------- 底部引导 ---------- */
.page-about .page-about-outro {
  padding: 56px 0 72px;
}

.page-about .page-about-outro-inner {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.page-about .page-about-outro h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.625rem, 4vw, 2.25rem);
  margin-bottom: 18px;
}

.page-about .page-about-outro p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text-light);
  margin: 0;
}

.page-about .page-about-outro a {
  color: var(--color-accent-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 230, 118, 0.45);
  transition: color var(--transition), border-color var(--transition);
}

.page-about .page-about-outro a:hover,
.page-about .page-about-outro a:focus-visible {
  color: var(--color-white);
  border-bottom-color: var(--color-white);
}

/* ---------- 平板断点 ---------- */
@media (min-width: 720px) {
  .page-about .page-about-hero {
    padding: 56px 0 64px;
  }

  .page-about .page-about-hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    column-gap: 40px;
    align-items: start;
  }

  .page-about .page-about-hero-side {
    display: block;
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
    margin-top: 8px;
  }

  .page-about .page-about-hero-side span {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    letter-spacing: 0.32em;
    color: var(--color-silver);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    text-transform: uppercase;
  }

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

  .page-about .page-about-toc ol {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .page-about-timeline {
    grid-template-columns: 240px 1fr;
    column-gap: 28px;
    align-items: start;
  }
}

/* ---------- 桌面断点 ---------- */
@media (min-width: 1024px) {
  .page-about .page-about-history-grid {
    grid-template-columns: 300px 1fr;
    column-gap: 40px;
    align-items: start;
  }

  .page-about .page-about-team-grid {
    grid-template-columns: 1fr 0.88fr;
    column-gap: 48px;
  }

  .page-about .page-about-honor-list {
    grid-template-columns: repeat(3, 1fr);
    column-gap: 24px;
    row-gap: 24px;
  }
}

/* ---------- 无 hover 触屏：展开徽章详情 ---------- */
@media (hover: none) {
  .page-about .page-about-honor-detail {
    max-height: none;
    opacity: 1;
    margin-top: 14px;
    padding-top: 14px;
    border-top-color: var(--about-line-strong);
  }
}