/* ===== page-about 品牌档案页面专属样式 ===== */
.page-about {
  --color-about-primary: #FF6B35;
  --color-about-secondary: #F9A825;
  --color-about-deep: #0B1A30;
  --color-about-dark: #0F1A2E;
  --color-about-medium: #1A2A44;
  --color-about-border: #2E5BFF;
  --color-about-text: #FFFFFF;
  --color-about-muted: #C0C0C0;
  --gradient-about-accent: linear-gradient(135deg, #FF6B35, #F9A825);
  --gradient-about-glow: linear-gradient(90deg, transparent, #2E5BFF, transparent);

  display: block;
  background-color: var(--color-about-deep);
  color: var(--color-about-text);
  font-family: 'PingFang SC', 'Microsoft YaHei UI', sans-serif;
  line-height: 1.6;
  padding: 0;
  margin: 0;
  width: 100%;
  min-height: 100vh;
}

/* 内层容器，控制最大宽度 */
.page-about__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
  box-sizing: border-box;
}

/* ---------- 英雄区 ---------- */
.page-about__hero {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 3rem;
  border-bottom: 2px solid var(--color-about-medium);
  padding-bottom: 2rem;
}

.page-about__hero-content {
  position: relative;
  z-index: 2;
}

.page-about__hero-title {
  font-family: Impact, 'Arial Black', sans-serif;
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--color-about-text);
  margin: 0 0 0.75rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.page-about__hero-text {
  font-size: 1rem;
  color: var(--color-about-muted);
  max-width: 680px;
  margin: 0 0 1.25rem;
}

.page-about__hero-cta {
  display: inline-block;
  padding: 0.7rem 1.8rem;
  border: none;
  border-radius: 0;
  background: var(--gradient-about-accent);
  color: var(--color-about-deep);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: box-shadow 0.2s, transform 0.2s;
  box-shadow: 0 0 8px rgba(255, 107, 53, 0.5);
}

.page-about__hero-cta:hover {
  box-shadow: 0 0 20px rgba(255, 107, 53, 0.8);
  transform: translateY(-2px);
}

.page-about__hero-visual {
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  border: 2px solid var(--color-about-medium);
  box-shadow: 0 0 12px rgba(46, 91, 255, 0.2);
}

.page-about__hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 两列网格 ---------- */
.page-about__grid {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .page-about__grid {
    flex-direction: row;
    gap: 2rem;
  }
  .page-about__brand,
  .page-about__timeline {
    flex: 1;
  }
}

.page-about__section-title {
  font-family: Impact, 'Arial Black', sans-serif;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--color-about-primary);
  margin: 0 0 1rem;
  position: relative;
  display: inline-block;
}

.page-about__section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--gradient-about-accent);
  margin-top: 6px;
}

/* ---------- 品牌介绍 ---------- */
.page-about__brand-text {
  font-size: 1rem;
  color: var(--color-about-muted);
  margin: 0 0 1rem;
  line-height: 1.7;
}

/* ---------- 时间线 ---------- */
.page-about__timeline-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-left: 1.5rem;
  border-left: 3px solid var(--color-about-medium);
}

.page-about__timeline-item {
  position: relative;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  cursor: default;
  transition: background-color 0.2s;
  padding: 0.5rem 0.5rem 0.5rem 0;
  border-radius: 4px;
}

.page-about__timeline-item:hover {
  background-color: rgba(26, 42, 68, 0.7);
}

.page-about__timeline-dot {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-about-primary);
  border: 3px solid var(--color-about-secondary);
  box-shadow: 0 0 8px rgba(249, 168, 37, 0.6);
  margin-top: 5px;
  transition: box-shadow 0.2s;
}

.page-about__timeline-item:hover .page-about__timeline-dot {
  box-shadow: 0 0 16px rgba(249, 168, 37, 0.9);
}

.page-about__timeline-content {
  flex: 1;
}

.page-about__timeline-version {
  display: block;
  font-family: Impact, 'Arial Black', sans-serif;
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--color-about-secondary);
  margin-bottom: 0.25rem;
}

.page-about__timeline-desc {
  font-size: 0.9rem;
  color: var(--color-about-muted);
  margin: 0 0 0.5rem;
}

.page-about__timeline-badge {
  display: block;
  width: 60px;
  height: 60px;
  border: 2px solid var(--color-about-medium);
  object-fit: cover;
  margin-top: 0.5rem;
}

.page-about__timeline-link {
  display: inline-block;
  color: var(--color-about-primary);
  text-decoration: underline 1px dashed;
  text-underline-offset: 4px;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.page-about__timeline-link:hover {
  color: var(--color-about-secondary);
}

/* ---------- 合规与备案 ---------- */
.page-about__compliance {
  margin-bottom: 2.5rem;
  padding: 1.5rem;
  border: 2px solid var(--color-about-secondary);
  box-shadow: 0 0 12px rgba(249, 168, 37, 0.2);
  background-color: var(--color-about-dark);
}

.page-about__compliance-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.page-about__compliance-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border: none;
  object-fit: contain;
}

.page-about__compliance-text {
  font-size: 0.95rem;
  color: var(--color-about-text);
  margin: 0 0 0.5rem;
}

.text-small {
  font-size: 0.85rem;
  color: var(--color-about-muted);
}

/* ---------- 联系我们 ---------- */
.page-about__contact {
  margin-bottom: 2.5rem;
}

.page-about__contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .page-about__contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .page-about__contact-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.page-about__contact-item {
  padding: 1rem;
  border: 1px solid var(--color-about-medium);
  background-color: var(--color-about-dark);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.page-about__contact-item:hover {
  border-color: var(--color-about-border);
  box-shadow: 0 0 8px rgba(46, 91, 255, 0.3);
}

.page-about__contact-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-about-secondary);
  margin-bottom: 0.25rem;
  font-weight: 700;
}

.page-about__contact-value {
  display: block;
  font-size: 0.95rem;
  color: var(--color-about-text);
  word-break: break-all;
  margin-bottom: 0.25rem;
}

.page-about__contact-note {
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-about__breadcrumb {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-about-medium);
  font-size: 0.85rem;
  color: var(--color-about-muted);
}

.page-about__breadcrumb a {
  color: var(--color-about-primary);
  text-decoration: none;
  transition: color 0.2s;
}

.page-about__breadcrumb a:hover {
  color: var(--color-about-secondary);
  text-decoration: underline;
}

.page-about__breadcrumb span[aria-current="page"] {
  color: var(--color-about-text);
}

/* ---------- 响应式微调 ---------- */
@media (max-width: 480px) {
  .page-about__hero-title {
    font-size: 1.6rem;
  }
  .page-about__section-title {
    font-size: 1.3rem;
  }
  .page-about__timeline-list {
    padding-left: 1rem;
  }
  .page-about__compliance-card {
    flex-direction: column;
  }
  .page-about__contact-grid {
    gap: 1rem;
  }
}

/* 确保所有图片响应 */
.page-about img {
  max-width: 100%;
  height: auto;
}
<<</PAGE_CSS>>>