/* ===== 品牌档案页 · 页面专属样式 ===== */
.page-about {
  --about-line: rgba(90, 123, 166, 0.22);
  --about-gold-soft: rgba(212, 167, 44, 0.16);
  background: var(--navy-900);
  color: var(--off-white);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ---------- 档案封面 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding: 2rem 0 clamp(3rem, 6vw, 5rem);
  background:
    linear-gradient(rgba(90, 123, 166, 0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90, 123, 166, 0.10) 1px, transparent 1px),
    var(--navy-900);
  background-size: 44px 44px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: var(--navy-700);
  clip-path: polygon(18% 0, 100% 0, 100% 100%, 0 100%);
  z-index: -1;
}

.page-about .about-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
  font-family: var(--mono-font);
  font-size: 0.8125rem;
  color: var(--muted);
}

.page-about .about-breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .about-breadcrumb a:hover {
  color: var(--gold-500);
}

.page-about .about-breadcrumb-sep {
  color: var(--blue-300);
}

.page-about .about-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
}

.page-about .about-hero-eyebrow {
  margin: 0 0 0.75rem;
  font-family: var(--mono-font);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--gold-500);
}

.page-about .about-hero h1 {
  margin: 0 0 1.25rem;
  font-family: var(--title-font);
  font-size: var(--h1-size);
  font-weight: 800;
  line-height: 1.15;
  color: var(--white);
}

.page-about .about-hero-lead {
  max-width: 42rem;
  margin: 0 0 1.75rem;
  font-size: 1.0625rem;
  color: var(--off-white);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.page-about .about-hero-file {
  margin: 0;
  font-family: var(--mono-font);
  font-size: 0.8125rem;
  color: var(--muted);
}

.page-about .about-hero-plaque {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  min-height: 190px;
  padding: 1.75rem 5rem 1.75rem 2rem;
  background: linear-gradient(135deg, var(--gold-500), #a5821c);
  color: var(--navy-900);
  clip-path: polygon(0 0, 100% 0, 76% 100%, 0 100%);
}

.page-about .about-hero-plaque-num {
  font-family: var(--mono-font);
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--navy-900);
}

.page-about .about-hero-plaque-text {
  margin-top: 0.75rem;
  font-family: var(--title-font);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--navy-900);
}

.page-about .about-hero-plaque-dot {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  width: 12px;
  height: 12px;
  background: var(--red-500);
  border-radius: 50%;
  animation: about-dot-pulse 2.4s ease-in-out infinite;
}

.page-about .about-hero-plaque-flag {
  position: absolute;
  bottom: 1.1rem;
  right: 1.5rem;
  font-family: var(--mono-font);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--navy-900);
  background: var(--red-500);
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
}

@keyframes about-dot-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(230, 57, 70, 0.5); }
  50% { box-shadow: 0 0 0 8px rgba(230, 57, 70, 0); }
}

/* ---------- 通用段落 ---------- */
.page-about .about-section {
  padding: clamp(3rem, 6vw, 5rem) 0;
  border-top: 1px solid var(--about-line);
}

.page-about .about-section-heading {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.page-about .about-section-heading .section-number {
  font-family: var(--mono-font);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold-500);
}

.page-about .about-section-heading h2 {
  margin: 0;
  font-family: var(--title-font);
  font-size: var(--h2-size);
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-about .about-section-heading h2::after {
  content: "";
  display: inline-block;
  width: 44px;
  height: 4px;
  margin-left: 12px;
  background: var(--red-500);
  vertical-align: middle;
}

/* ---------- 01 品牌故事 ---------- */
.page-about .about-story-grid {
  display: grid;
  gap: 2rem;
}

.page-about .about-story-copy p {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--off-white);
}

.page-about .about-story-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

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

.page-about .about-story-figure img,
.page-about .about-map-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(90, 123, 166, 0.30);
}

.page-about .about-story-figure img {
  aspect-ratio: 8 / 5;
}

.page-about .about-story-figure figcaption,
.page-about .about-map-figure figcaption,
.page-about .about-honors-media figcaption {
  margin-top: 0.75rem;
  font-family: var(--mono-font);
  font-size: 0.8125rem;
  color: var(--muted);
}

/* ---------- 02 发展历程 ---------- */
.page-about .about-timeline-section {
  background:
    radial-gradient(circle at 100% 0%, rgba(212, 167, 44, 0.07), transparent 40%),
    var(--navy-700);
}

.page-about .about-timeline-wrap {
  position: relative;
}

.page-about .about-timeline-svg {
  display: none;
}

.page-about .about-timeline-list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.page-about .about-timeline-item {
  display: grid;
  gap: 0.5rem 0;
}

.page-about .about-timeline-year {
  margin: 0;
  font-family: var(--mono-font);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--gold-500);
}

.page-about .about-timeline-card {
  background: rgba(10, 26, 58, 0.78);
  border: 1px solid rgba(90, 123, 166, 0.20);
  border-left: 4px solid var(--gold-500);
  border-radius: 6px;
  padding: 1.25rem 1.25rem 1.4rem;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-about .about-timeline-card:hover {
  transform: translateY(-3px);
  border-color: var(--gold-500);
}

.page-about .about-timeline-card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--title-font);
  font-size: 1.125rem;
  color: var(--white);
}

.page-about .about-timeline-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--off-white);
}

/* ---------- 03 规模与覆盖 ---------- */
.page-about .about-scale-lead {
  max-width: 46rem;
  margin: 0 0 2rem;
  font-size: 1.0625rem;
  color: var(--off-white);
}

.page-about .about-stats-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr 1fr;
}

.page-about .about-stat-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 150px;
  padding: 1.25rem;
  background: linear-gradient(145deg, var(--navy-700), rgba(18, 41, 79, 0.40));
  border: 1px solid rgba(90, 123, 166, 0.22);
  border-top: 3px solid var(--gold-500);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-about .about-stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold-500);
}

.page-about .about-stat-label {
  font-family: var(--mono-font);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .about-stat-value {
  display: block;
  margin: 0.5rem 0;
  font-family: var(--mono-font);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--white);
}

.page-about .about-stat-unit {
  margin-left: 0.18em;
  font-size: 0.5em;
  color: var(--gold-500);
}

.page-about .about-stat-desc {
  font-size: 0.8125rem;
  color: var(--muted);
}

.page-about .about-scale-map {
  display: grid;
  gap: 2rem;
  margin-top: 3rem;
}

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

.page-about .about-map-figure img {
  aspect-ratio: 1 / 1;
  max-height: 520px;
  margin-inline: auto;
}

.page-about .about-map-notes {
  padding: 1.5rem;
  background: rgba(18, 41, 79, 0.45);
  border: 1px solid rgba(90, 123, 166, 0.22);
  border-left: 4px solid var(--red-500);
}

.page-about .about-map-notes h3 {
  margin: 0 0 0.75rem;
  font-family: var(--title-font);
  font-size: 1.375rem;
  color: var(--white);
}

.page-about .about-map-notes > p {
  margin: 0 0 0.75rem;
  font-size: 0.9375rem;
  color: var(--off-white);
}

.page-about .about-map-list {
  margin: 0 0 1.5rem;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.5rem;
}

.page-about .about-map-list li {
  font-size: 0.9375rem;
  color: var(--off-white);
}

/* ---------- 04 资质与荣誉 ---------- */
.page-about .about-honors-section {
  background:
    radial-gradient(circle at 8% 0%, rgba(212, 167, 44, 0.08), transparent 42%),
    var(--navy-900);
}

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

.page-about .about-honor {
  position: relative;
  padding: 2rem 1.5rem 1.5rem;
  text-align: center;
  background: linear-gradient(180deg, rgba(18, 41, 79, 0.92), rgba(10, 26, 58, 0.92));
  border: 1px solid rgba(212, 167, 44, 0.35);
  border-radius: 14px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-about .about-honor:hover {
  transform: translateY(-5px);
  border-color: var(--gold-500);
}

.page-about .about-honor-seal {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 88px;
  height: 88px;
  margin: 0 auto 1.25rem;
  border: 2px solid var(--gold-500);
  border-radius: 18px;
  background: rgba(212, 167, 44, 0.06);
  font-family: var(--mono-font);
  font-weight: 700;
  color: var(--gold-500);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about .about-honor:hover .about-honor-seal {
  transform: scale(1.06);
  box-shadow: 0 8px 28px rgba(212, 167, 44, 0.22);
}

.page-about .about-honor-seal span {
  font-size: 1.25rem;
  line-height: 1.2;
}

.page-about .about-honor-seal em {
  font-style: normal;
  font-size: 0.72em;
  letter-spacing: 0.04em;
}

.page-about .about-honor h3 {
  margin: 0 0 0.75rem;
  font-family: var(--title-font);
  font-size: 1.25rem;
  color: var(--white);
}

.page-about .about-honor p {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  color: var(--off-white);
}

.page-about .about-honor-note {
  font-family: var(--mono-font);
  font-size: 0.8125rem;
  color: var(--gold-500);
  opacity: 0.75;
  transition: opacity 0.2s ease;
}

.page-about .about-honor:hover .about-honor-note {
  opacity: 1;
}

.page-about .about-honors-media {
  margin: 2.5rem 0 0;
}

.page-about .about-honors-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid rgba(90, 123, 166, 0.22);
}

/* ---------- 05 合作伙伴 ---------- */
.page-about .about-partners-section {
  background: var(--navy-700);
}

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

.page-about .about-partner-block {
  padding: 1.75rem;
  background: rgba(10, 26, 58, 0.60);
  border-top: 4px solid var(--gold-500);
  border-radius: 0 0 6px 6px;
  transition: transform 0.25s ease;
}

.page-about .about-partner-block:hover {
  transform: translateY(-3px);
}

.page-about .about-partner-block h3 {
  margin: 0 0 0.75rem;
  font-family: var(--title-font);
  font-size: 1.25rem;
  color: var(--white);
}

.page-about .about-partner-block p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--off-white);
}

/* ---------- 收尾入口 ---------- */
.page-about .about-connect-section {
  padding: clamp(2rem, 4vw, 3.5rem) 0;
}

.page-about .about-connect-card {
  margin: 0;
  padding: 2.5rem 1.5rem;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(212, 167, 44, 0.18), transparent 60%),
    var(--navy-700);
  border: 1px solid rgba(212, 167, 44, 0.25);
  border-radius: 18px;
}

.page-about .about-connect-card h2 {
  margin: 0 0 0.75rem;
  font-family: var(--title-font);
  font-size: var(--h3-size);
  color: var(--white);
}

.page-about .about-connect-card p {
  max-width: 40rem;
  margin: 0 auto 1.5rem;
  font-size: 0.9375rem;
  color: var(--off-white);
}

.page-about .about-connect-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

/* ---------- 时间线装饰动画 ---------- */
@keyframes about-dash {
  to { stroke-dashoffset: -120; }
}

.page-about .about-timeline-path {
  stroke: var(--blue-300);
  stroke-width: 2;
  stroke-dasharray: 8 10;
  animation: about-dash 36s linear infinite;
}

.page-about .about-timeline-dot {
  fill: var(--blue-300);
}

.page-about .about-timeline-dot--first {
  fill: var(--gold-500);
  stroke: var(--gold-500);
  stroke-width: 2;
}

/* ---------- 桌面端增强 ---------- */
@media (min-width: 820px) {

  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.9fr);
    align-items: center;
    gap: 3rem;
  }

  .page-about .about-hero-plaque {
    min-height: 230px;
    padding: 2.5rem 5rem 2.5rem 2.5rem;
  }

  .page-about .about-story-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 3rem;
    align-items: start;
  }

  .page-about .about-timeline-wrap {
    padding-left: 0;
  }

  .page-about .about-timeline-svg {
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 150px;
    z-index: 0;
    opacity: 0.55;
    pointer-events: none;
  }

  .page-about .about-timeline-list {
    gap: 2.5rem;
  }

  .page-about .about-timeline-item {
    grid-template-columns: 150px minmax(0, 1fr);
    column-gap: 1.25rem;
    row-gap: 0;
    align-items: start;
  }

  .page-about .about-timeline-year {
    position: sticky;
    top: 6rem;
    font-size: 2.5rem;
    text-align: right;
    padding-right: 0.75rem;
    margin: 0;
    border-right: 2px solid var(--gold-500);
  }

  .page-about .about-timeline-card {
    margin-left: 0;
  }

  .page-about .about-stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
  }

  .page-about .about-scale-map {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: center;
    gap: 3rem;
  }

  .page-about .about-map-notes {
    padding: 2rem;
  }

  .page-about .about-honors-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }

  .page-about .about-partner-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }
}

/* ---------- 窄屏细节保护 ---------- */
@media (max-width: 420px) {
  .page-about .about-stat-value {
    font-size: clamp(2rem, 9vw, 2.75rem);
  }

  .page-about .about-stat-card {
    min-height: 132px;
    padding: 1rem;
  }

  .page-about .about-hero-plaque {
    min-height: 160px;
    padding-right: 4rem;
  }

  .page-about .about-connect-card {
    padding: 2rem 1rem;
  }
}