/* ===== 品牌概况 page-about 专属样式 ===== */
.page-about {
  --map-stroke: #c07c5a;
  --map-fill: #e8d5c4;
  --map-water: #a5c42233;
  --tag-bg: #0a1f3d0d;
  --tag-text: #0a1f3d;
  --timeline-line: #0a1f3d;
  --timeline-dot: #d4a843;
  --timeline-dot-ring: #d4a84333;
  --card-shadow: 0 2px 12px rgba(10, 31, 61, 0.08);
  --hero-clip: polygon(0 0, 100% 0, 100% 88%, 0 100%);

  background: #f5f0e8;
}
/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  padding-top: 1.25rem;
  padding-bottom: 0.75rem;
  font-size: 0.8125rem;
  color: #7a7a7a;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.page-about .breadcrumb a {
  color: #0a1f3d;
  text-decoration: none;
  transition: color 0.2s;
}
.page-about .breadcrumb a:hover {
  color: #f46d2d;
}
.page-about .breadcrumb__sep {
  color: #c07c5a;
  font-weight: 300;
}
/* ---------- Hero ---------- */
.page-about__hero {
  position: relative;
  background: #0a1f3d;
  color: #fff;
  clip-path: var(--hero-clip);
  padding: 2.5rem 0 4rem;
  overflow: hidden;
}
.page-about__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0px,
    transparent 8px,
    rgba(255, 255, 255, 0.02) 8px,
    rgba(255, 255, 255, 0.02) 10px
  );
  pointer-events: none;
}
.page-about__hero-decor {
  position: absolute;
  right: -6%;
  bottom: -8%;
  width: 30%;
  height: 50%;
  background: rgba(244, 109, 45, 0.12);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}
.page-about__hero-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
  position: relative;
  z-index: 1;
}
.page-about__hero-text {
  flex: 1 1 280px;
}
.page-about__hero-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 0.75rem;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.page-about__hero-subtitle {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.88);
  max-width: 520px;
  margin: 0;
}
.page-about__hero-figure {
  flex: 0 0 auto;
  width: 140px;
  height: 140px;
  border-radius: 0;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 88%, 12% 100%);
  background: #f5f0e8;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-about__hero-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* ---------- 通用区块 ---------- */
.page-about__section {
  padding: 3rem 0;
}
.page-about__section-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: #0a1f3d;
  margin: 0 0 1.75rem;
  position: relative;
  display: inline-block;
}
.page-about__section-title::after {
  content: "";
  display: block;
  width: 52px;
  height: 4px;
  background: #f46d2d;
  margin-top: 0.4rem;
  clip-path: polygon(0 0, 100% 0, 90% 100%, 0 100%);
}
/* ---------- 品牌定位 ---------- */
.page-about__positioning-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.page-about__positioning-text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: #2c2c2c;
  max-width: 720px;
  margin: 0;
}
.page-about__positioning-tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.page-about__tag {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--tag-bg);
  color: var(--tag-text);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  border-left: 3px solid #f46d2d;
  clip-path: polygon(0 0, 100% 0, 96% 100%, 0 100%);
}
/* ---------- 发展历程 ---------- */
.page-about__timeline-section {
  background: #f0ebe1;
}
.page-about__timeline {
  position: relative;
  padding-left: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
/* 竖线 */
.page-about__timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--timeline-line);
  border-radius: 2px;
}
.page-about__timeline-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.page-about__timeline-node {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.page-about__timeline-dot {
  position: absolute;
  left: -1.5rem;
  top: 0.35rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--timeline-dot);
  box-shadow: 0 0 0 4px var(--timeline-dot-ring);
  flex-shrink: 0;
  z-index: 1;
}
.page-about__timeline-version {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  color: #d4a843;
  background: #0a1f3d;
  padding: 0.15rem 0.7rem;
  letter-spacing: 0.03em;
  clip-path: polygon(0 0, 100% 0, 94% 100%, 0 100%);
  display: inline-block;
}
.page-about__timeline-details {
  margin-left: 0;
  width: 100%;
}
.page-about__timeline-summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  padding: 0.25rem 0;
  transition: color 0.2s;
  font-family: var(--font-body);
}
.page-about__timeline-summary::-webkit-details-marker {
  display: none;
}
.page-about__timeline-summary:hover {
  color: #f46d2d;
}
.page-about__timeline-title {
  font-size: 1rem;
  font-weight: 600;
  color: #0a1f3d;
  flex: 1;
}
.page-about__timeline-toggle {
  font-size: 1.25rem;
  font-weight: 300;
  color: #c07c5a;
  transition: transform 0.25s;
  flex-shrink: 0;
  width: 1.5rem;
  text-align: center;
}
.page-about__timeline-details[open] .page-about__timeline-toggle {
  transform: rotate(45deg);
  color: #f46d2d;
}
.page-about__timeline-desc {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: #2c2c2c;
  padding: 0.5rem 0 0.25rem 1.2rem;
  border-left: 2px dashed #d4a84366;
  margin-left: 0.3rem;
}
.page-about__timeline-desc p {
  margin: 0;
}
/* 时间线动画 */
.page-about__timeline-details[open] .page-about__timeline-desc {
  animation: page-about-fadeIn 0.25s ease;
}
@keyframes page-about-fadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* ---------- 地域联系 ---------- */
.page-about__location {
  background: #fff;
}
.page-about__location-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: center;
}
.page-about__location-map {
  flex: 1 1 280px;
  min-width: 220px;
  max-width: 480px;
}
.page-about__map-svg {
  display: block;
  width: 100%;
  height: auto;
}
.page-about__map-body {
  fill: var(--map-fill);
  stroke: var(--map-stroke);
  stroke-width: 2;
  transition: fill 0.3s;
}
.page-about__map-water {
  fill: var(--map-water);
  stroke: #a5c422;
  stroke-width: 0.8;
  opacity: 0.5;
}
.page-about__map-marker {
  fill: #f46d2d;
  stroke: #fff;
  stroke-width: 1.5;
  cursor: pointer;
  transition: r 0.2s, fill 0.2s;
}
.page-about__map-marker:hover {
  r: 7;
  fill: #d4a843;
}
.page-about__map-marker:focus-visible {
  outline: 2px solid #0a1f3d;
  outline-offset: 2px;
}
.page-about__location-text {
  flex: 1 1 260px;
}
.page-about__location-text p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: #2c2c2c;
  margin: 0 0 1rem;
}
.page-about__location-addr {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: #7a7a7a;
  padding: 0.6rem 1rem;
  background: #f5f0e8;
  border-left: 3px solid #d4a843;
  margin: 0;
}
/* ---------- 服务承诺 ---------- */
.page-about__commitment {
  background: #f5f0e8;
}
.page-about__commitment-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.page-about__commitment-card {
  background: #fff;
  padding: 1.5rem 1.25rem;
  box-shadow: var(--card-shadow);
  clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%);
  transition: transform 0.2s, box-shadow 0.2s;
}
.page-about__commitment-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(10, 31, 61, 0.12);
}
.page-about__commitment-icon {
  color: #f46d2d;
  margin-bottom: 0.75rem;
  width: 36px;
  height: 36px;
}
.page-about__commitment-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: #0a1f3d;
  margin: 0 0 0.5rem;
}
.page-about__commitment-text {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #2c2c2c;
  margin: 0;
}
.page-about__commitment-visual {
  margin-top: 1rem;
  border-radius: 0;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 98% 100%, 0 96%);
  background: #e8d5c4;
}
.page-about__commitment-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
/* ---------- 内部链接 ---------- */
.page-about__links {
  background: #0a1f3d;
  color: #fff;
}
.page-about__links .page-about__section-title {
  color: #fff;
}
.page-about__links .page-about__section-title::after {
  background: #d4a843;
}
.page-about__links-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.page-about__link-item {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  padding: 0.6rem 1.4rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  background: transparent;
  clip-path: polygon(0 0, 100% 0, 96% 100%, 0 100%);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.page-about__link-item:hover {
  background: #f46d2d;
  border-color: #f46d2d;
  color: #fff;
}
/* ---------- 响应式：桌面端 ≥768px ---------- */
@media (min-width: 768px) {
  .page-about .breadcrumb {
    padding-top: 1.75rem;
    font-size: 0.875rem;
  }
  .page-about__hero {
    padding: 3.5rem 0 5rem;
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
  }
  .page-about__hero-title {
    font-size: 3.5rem;
  }
  .page-about__hero-subtitle {
    font-size: 1.125rem;
  }
  .page-about__hero-figure {
    width: 180px;
    height: 180px;
  }
  .page-about__section {
    padding: 4.5rem 0;
  }
  .page-about__section-title {
    font-size: 2rem;
    margin-bottom: 2.25rem;
  }
  .page-about__section-title::after {
    width: 64px;
  }
  .page-about__positioning-grid {
    flex-direction: row;
    align-items: flex-start;
    gap: 2.5rem;
  }
  .page-about__positioning-text {
    flex: 2;
    font-size: 1.0625rem;
  }
  .page-about__positioning-tags {
    flex: 1;
    flex-direction: column;
    gap: 0.6rem;
  }
  .page-about__tag {
    font-size: 0.875rem;
  }
  .page-about__timeline {
    padding-left: 3rem;
    gap: 2.5rem;
  }
  .page-about__timeline::before {
    left: 10px;
  }
  .page-about__timeline-dot {
    left: -2rem;
    width: 16px;
    height: 16px;
  }
  .page-about__timeline-version {
    font-size: 1rem;
    padding: 0.2rem 0.9rem;
  }
  .page-about__timeline-title {
    font-size: 1.125rem;
  }
  .page-about__timeline-desc {
    font-size: 1rem;
    padding-left: 1.5rem;
  }
  .page-about__timeline-item {
    flex-direction: row;
    align-items: flex-start;
    gap: 1rem;
  }
  .page-about__timeline-node {
    flex-shrink: 0;
    min-width: 100px;
  }
  .page-about__timeline-details {
    flex: 1;
  }
  .page-about__location-grid {
    flex-wrap: nowrap;
    gap: 3rem;
  }
  .page-about__location-map {
    flex: 0 0 380px;
  }
  .page-about__location-text p {
    font-size: 1.0625rem;
  }
  .page-about__commitment-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  .page-about__commitment-card {
    padding: 2rem 1.5rem;
  }
  .page-about__links-grid {
    gap: 1.25rem;
  }
  .page-about__link-item {
    font-size: 1rem;
    padding: 0.7rem 1.8rem;
  }
}
/* ---------- 桌面端大屏 ≥1024px ---------- */
@media (min-width: 1024px) {
  .page-about__hero-title {
    font-size: 4rem;
  }
  .page-about__hero-subtitle {
    font-size: 1.25rem;
    max-width: 600px;
  }
  .page-about__hero-figure {
    width: 220px;
    height: 220px;
  }
  .page-about__section-title {
    font-size: 2.25rem;
  }
  .page-about__timeline {
    padding-left: 4rem;
  }
  .page-about__timeline::before {
    left: 12px;
  }
  .page-about__timeline-dot {
    left: -2.6rem;
    width: 18px;
    height: 18px;
  }
  .page-about__location-map {
    flex-basis: 440px;
  }
}
/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about__timeline-details[open] .page-about__timeline-desc {
    animation: none;
  }
  .page-about__commitment-card {
    transition: none;
  }
  .page-about__commitment-card:hover {
    transform: none;
  }
  .page-about__map-marker {
    transition: none;
  }
  .page-about__map-marker:hover {
    r: 5;
  }
  .page-about__timeline-toggle {
    transition: none;
  }
}