/* ===== page-about 专属样式 ===== */
.page-about {
  /* 自定义变量 */
  --page-accent: #FF6B35;
  --page-primary: #00B4D8;
  --page-text: #2D3436;
  --page-text-light: #636E72;
}

/* 面包屑 */
.page-about .breadcrumb {
  padding: 1rem 2rem 0;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--page-text-light);
  max-width: var(--max-w);
  margin: 0 auto;
}
.page-about .breadcrumb a {
  color: var(--page-primary);
  text-decoration: none;
}
.page-about .breadcrumb__sep {
  margin: 0 0.4rem;
}

/* 分屏首屏 */
.page-about .hero-split {
  display: flex;
  min-height: 70vh;
  position: relative;
  overflow: hidden;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}
.page-about .hero-left {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem 0;
  position: relative;
  z-index: 2;
}
.page-about .hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--page-primary);
  margin: 0;
  line-height: 1.05;
}
.page-about .hero-subtitle {
  font-family: var(--font-body);
  font-size: 1.2rem;
  color: var(--page-text-light);
  letter-spacing: 0.15em;
  margin: 0.5rem 0 1rem;
  text-transform: uppercase;
}
.page-about .hero-rotate-note {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--page-accent);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  position: absolute;
  left: -1.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: linear-gradient(180deg, var(--page-accent) 50%, transparent 50%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.8;
}
.page-about .hero-desc {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--page-text);
  max-width: 80%;
  margin-top: 1.2rem;
}
.page-about .hero-right {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.page-about .hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
  filter: blur(4px);
}
.page-about .data-flow {
  width: 90%;
  max-width: 380px;
  height: auto;
  position: relative;
  z-index: 1;
}
.page-about .flow-path {
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  animation: flowPath 4s linear infinite;
}
.page-about .flow-dot {
  filter: drop-shadow(0 0 6px var(--page-accent));
}
@keyframes flowPath {
  to { stroke-dashoffset: 0; }
}
/* 悬停加速数据动效 */
.page-about .data-anim-box:hover .progress-bar__fill {
  transition-duration: 0.2s;
}
.page-about .data-anim-box:hover .progress-bar__fill::after {
  animation-duration: 0.8s;
}

/* 章节通用 */
.page-about .section {
  padding: 4rem 2rem;
  max-width: var(--max-w);
  margin: 0 auto;
}
.page-about .section__inner {
  position: relative;
}
.page-about .section__title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--page-primary-dark, #0077B6);
  margin-bottom: 2rem;
  padding-left: 1.5rem;
  border-left: 4px solid var(--page-accent);
}
.page-about .section .glass-card {
  background: var(--color-glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: box-shadow 0.3s ease;
  cursor: default;
}
.page-about .section .glass-card:hover {
  box-shadow: var(--shadow-lg);
}

/* 理念 section */
.page-about .mission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--gap);
}
.page-about .mission-grid .card__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.8rem;
}
.page-about .mission-grid .card__heading {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0;
}
.page-about .mission-grid .badge--accent {
  background: var(--page-accent);
  color: #fff;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
}
.page-about .mission-grid .card__footer {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--page-primary);
  cursor: pointer;
  font-weight: 600;
  transition: color 0.2s;
}
.page-about .mission-grid .card__footer:hover {
  color: var(--page-accent);
}
.page-about .mission-grid .card__extra {
  margin-top: 0.8rem;
  border-top: 1px solid var(--color-border);
  padding-top: 0.8rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 数据透明承诺 */
.page-about .trust-wrap {
  display: flex;
  gap: var(--gap);
  flex-wrap: wrap;
  align-items: flex-start;
}
.page-about .trust-text {
  flex: 1 1 55%;
  min-width: 280px;
}
.page-about .trust-text p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--page-text);
}
.page-about .trust-list {
  list-style: none;
  padding-left: 0;
  margin-top: 1rem;
}
.page-about .trust-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}
.page-about .trust-list li::before {
  content: "\2713";
  color: var(--page-accent);
  position: absolute;
  left: 0;
  font-weight: bold;
}
.page-about .data-anim-box {
  margin-top: 2rem;
  background: var(--color-card);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  box-shadow: var(--shadow-sm);
}
.page-about .data-label {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}
.page-about .progress-bar {
  height: 10px;
  background: #e0e7ef;
  border-radius: 6px;
  overflow: hidden;
}
.page-about .progress-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--page-primary), var(--page-accent));
  border-radius: 6px;
  transition: width 1.5s ease;
  position: relative;
}
.page-about .progress-bar__fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
  border-radius: 6px;
}
@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
.page-about .data-note {
  font-size: 0.8rem;
  color: var(--page-text-light);
  margin-top: 0.3rem;
}
.page-about .trust-visual {
  flex: 1 1 40%;
  min-width: 250px;
}
.page-about .trust-chart {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: block;
}

/* 球迷社区 */
.page-about .community-layout {
  display: flex;
  gap: var(--gap);
  flex-wrap: wrap;
  align-items: center;
}
.page-about .community-card {
  flex: 1 1 55%;
  min-width: 280px;
}
.page-about .community-card .card__body p {
  font-size: 1rem;
  line-height: 1.7;
}
.page-about .community-stats {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.2rem;
  flex-wrap: wrap;
}
.page-about .stat-item {
  text-align: center;
}
.page-about .stat-number {
  font-family: var(--font-number);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-number, #0984E3);
  display: block;
}
.page-about .stat-label {
  font-size: 0.8rem;
  color: var(--page-text-light);
  letter-spacing: 0.05em;
}
.page-about .community-img {
  flex: 1 1 40%;
  min-width: 250px;
}
.page-about .community-img img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  object-fit: cover;
}
.page-about .community-cta {
  margin-top: 2rem;
  text-align: center;
}
.page-about .community-cta .btn {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 600;
  transition: background 0.2s, color 0.2s;
  margin: 0.3rem;
}
.page-about .btn-accent {
  background: var(--page-accent);
  color: #fff;
}
.page-about .btn-accent:hover {
  background: #e55a2a;
}
.page-about .btn-sm {
  font-size: 0.9rem;
  padding: 0.4rem 1rem;
}

/* 联系提醒 */
.page-about .contact-reminder {
  text-align: center;
  padding: 2rem 2rem 3rem;
  border-top: 1px solid var(--color-border);
}
.page-about .contact-reminder p {
  font-size: 0.9rem;
  color: var(--page-text-light);
}
.page-about .contact-reminder a {
  color: var(--page-primary);
  text-decoration: underline;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .page-about .hero-split {
    flex-direction: column;
    min-height: auto;
    padding: 0 1rem;
  }
  .page-about .hero-left {
    padding: 2rem 0 1rem;
  }
  .page-about .hero-rotate-note {
    position: static;
    writing-mode: horizontal-tb;
    transform: none;
    -webkit-text-fill-color: var(--page-accent);
    background: none;
    display: inline-block;
    margin-bottom: 0.5rem;
  }
  .page-about .hero-desc {
    max-width: 100%;
  }
  .page-about .hero-right {
    min-height: 200px;
    padding: 1rem 0;
  }
  .page-about .hero-bg {
    object-fit: contain;
    filter: blur(2px);
    opacity: 0.15;
  }
  .page-about .section {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .page-about .mission-grid {
    grid-template-columns: 1fr;
  }
  .page-about .trust-wrap {
    flex-direction: column;
  }
  .page-about .community-layout {
    flex-direction: column;
  }
  .page-about .community-img {
    order: -1;
  }
}

.page-about {
  --page-primary-dark: var(--color-primary-dark);
}