.page-about {
  --page-accent-alpha: #39ff14;
  --page-accent-beta: #c0c0c0;
  --page-bg-card: rgba(255, 255, 255, 0.05);
  --page-border-card: 1px solid rgba(57, 255, 20, 0.3);
  --page-shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
  --page-radius-card: 12px;
  --page-transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --page-gap-grid: 1.5rem;
  --page-font-heading: 'Inter', system-ui, -apple-system, sans-serif;
  --page-font-body: 'Roboto', system-ui, -apple-system, sans-serif;
  --page-font-data: 'JetBrains Mono', 'Consolas', monospace;
  --page-mobile-breakpoint: 640px;
  --page-desktop-breakpoint: 1024px;

  background: var(--gradient-main, linear-gradient(135deg, #0b1a2a 0%, #1a3a5c 100%));
  color: var(--text-primary, #ffffff);
  font-family: var(--page-font-body);
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

/* ===== 面包屑 ===== */
.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.6rem;
  padding: 1rem 1.5rem;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  font-size: 0.85rem;
  color: var(--text-secondary, #a0b0c0);
}

.page-about .breadcrumb a {
  color: var(--page-accent-alpha);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--page-transition);
}

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

.page-about .breadcrumb .sep {
  color: var(--page-accent-beta);
  font-weight: 300;
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--text-primary);
  font-weight: 500;
}

/* ===== 通用容器 ===== */
.page-about .container {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.page-about .section {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

/* ===== 品牌故事区 ===== */
.page-about .brand-story {
  position: relative;
  overflow: hidden;
  padding-top: 2rem;
  padding-bottom: 4rem;
}

.page-about .brand-story__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.12;
  pointer-events: none;
}

.page-about .brand-story__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.page-about .brand-story__content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-about .brand-story__title {
  font-family: var(--page-font-heading);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text-primary);
  margin: 0 0 0.25rem;
  text-shadow: 0 2px 12px rgba(57, 255, 20, 0.15);
}

.page-about .brand-story__subtitle {
  font-size: 1.05rem;
  color: var(--page-accent-alpha);
  font-weight: 500;
  margin: 0 0 1rem;
  letter-spacing: 0.03em;
}

.page-about .brand-story__text {
  max-width: 700px;
  font-size: 1rem;
  color: var(--text-secondary, #a0b0c0);
  display: grid;
  gap: 1rem;
}

.page-about .brand-story__text p {
  margin: 0;
  line-height: 1.7;
}

.page-about .brand-story__stat {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 1rem 0.6rem;
  padding: 1.2rem 1.5rem;
  background: var(--page-bg-card);
  border: var(--page-border-card);
  border-radius: var(--page-radius-card);
  box-shadow: var(--page-shadow-card);
  margin-top: 1rem;
}

.page-about .brand-story__stat .data-number {
  font-family: var(--page-font-data);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--page-accent-alpha);
}

.page-about .brand-story__stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ===== 球队数据总览 ===== */
.page-about .team-overview {
  padding-top: 2rem;
  padding-bottom: 3rem;
}

.page-about .team-overview__heading {
  font-family: var(--page-font-heading);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  color: var(--text-primary);
  margin: 0 0 0.5rem;
}

.page-about .team-overview__desc {
  color: var(--text-secondary);
  margin: 0 0 2rem;
  font-size: 1rem;
}

.page-about .team-overview__footnote {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 2rem;
  border-top: 1px solid rgba(192,192,192,0.15);
  padding-top: 1.2rem;
}

/* ===== 球队网格 ===== */
.page-about .team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--page-gap-grid);
}

/* ===== 球队卡片 ===== */
.page-about .team-card {
  background: var(--page-bg-card);
  border: var(--page-border-card);
  border-radius: var(--page-radius-card);
  padding: 1.5rem 1.2rem 1.2rem;
  box-shadow: var(--page-shadow-card);
  transition: transform var(--page-transition), box-shadow var(--page-transition), border-color var(--page-transition);
  cursor: default;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-about .team-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 20%, rgba(57,255,20,0.04), transparent 70%);
  pointer-events: none;
  transition: opacity var(--page-transition);
  opacity: 0;
}

.page-about .team-card:hover,
.page-about .team-card:focus-within {
  transform: translateY(-6px);
  box-shadow: 0 8px 32px rgba(57, 255, 20, 0.18);
  border-color: var(--page-accent-alpha);
}

.page-about .team-card:hover::before,
.page-about .team-card:focus-within::before {
  opacity: 1;
}

.page-about .team-card__badge {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid rgba(57, 255, 20, 0.25);
  margin-bottom: 1rem;
  background: var(--page-bg-card);
  flex-shrink: 0;
  transition: border-color var(--page-transition), transform var(--page-transition);
}

.page-about .team-card:hover .team-card__badge,
.page-about .team-card:focus-within .team-card__badge {
  border-color: var(--page-accent-alpha);
  transform: scale(1.03);
}

.page-about .team-card__badge-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .team-card__name {
  font-family: var(--page-font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
  margin: 0 0 0.75rem;
  letter-spacing: -0.01em;
}

.page-about .team-card__record {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem 1rem;
  margin-bottom: 0.5rem;
}

.page-about .team-card__stat {
  font-family: var(--page-font-data);
  font-size: 0.9rem;
  color: var(--page-accent-alpha);
  background: rgba(57, 255, 20, 0.06);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  white-space: nowrap;
}

.page-about .team-card__extra {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.5s ease, opacity 0.4s ease, margin 0.3s ease;
  margin-top: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.page-about .team-card:hover .team-card__extra,
.page-about .team-card:focus-within .team-card__extra {
  max-height: 300px;
  opacity: 1;
  margin-top: 1rem;
}

.page-about .team-card__extra-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.page-about .team-card__matches {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.3rem 0.6rem;
  width: 100%;
  max-width: 220px;
}

.page-about .team-card__matches li {
  font-family: var(--page-font-data);
  font-size: 0.82rem;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
  padding: 0.25rem 0.4rem;
  border-radius: 4px;
  text-align: center;
}

.page-about .team-card__subscribe {
  margin-top: 0.4rem;
  font-size: 0.85rem;
  padding: 0.45rem 1.2rem;
  background: var(--page-accent-alpha);
  color: #0b1a2a;
  border: none;
  border-radius: 6px;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--page-transition), transform var(--page-transition);
  font-family: var(--page-font-body);
}

.page-about .team-card__subscribe:hover,
.page-about .team-card__subscribe:focus-visible {
  background: #2ee010;
  transform: scale(1.04);
}

/* ===== 订阅小屏版 ===== */
.page-about .subscribe-mobile {
  padding-top: 2rem;
  padding-bottom: 4rem;
}

.page-about .subscribe-mobile__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.page-about .subscribe-mobile__visual {
  display: flex;
  justify-content: center;
  order: -1;
}

.page-about .subscribe-mobile__mockup {
  max-width: 180px;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 8px 40px rgba(57, 255, 20, 0.12);
  border: 1px solid rgba(57, 255, 20, 0.15);
  transition: transform var(--page-transition), box-shadow var(--page-transition);
}

.page-about .subscribe-mobile__mockup:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 48px rgba(57, 255, 20, 0.2);
}

.page-about .subscribe-mobile__content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-about .subscribe-mobile__heading {
  font-family: var(--page-font-heading);
  font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--text-primary);
  margin: 0;
}

.page-about .subscribe-mobile__desc {
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
  max-width: 580px;
}

.page-about .subscribe-mobile__features {
  list-style: none;
  margin: 0.4rem 0 0.8rem;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-about .subscribe-mobile__features li {
  padding-left: 1.6rem;
  position: relative;
  color: var(--text-primary);
  font-weight: 400;
}

.page-about .subscribe-mobile__features li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--page-accent-alpha);
  font-weight: 700;
}

/* ===== Toast 模拟提示 ===== */
.page-about .subscribe-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: rgba(11, 26, 42, 0.92);
  border: 1px solid var(--page-accent-alpha);
  color: var(--page-accent-alpha);
  padding: 0.8rem 2rem;
  border-radius: 40px;
  font-family: var(--page-font-body);
  font-size: 0.95rem;
  font-weight: 500;
  box-shadow: 0 6px 30px rgba(57, 255, 20, 0.15);
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 999;
  pointer-events: none;
  white-space: nowrap;
}

.page-about .subscribe-toast[data-visible="true"] {
  transform: translateX(-50%) translateY(0);
}

/* ===== 滚动显现 ===== */
.page-about .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.page-about .reveal[data-visible="true"] {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 桌面端 ===== */
@media (min-width: 641px) {
  .page-about .brand-story__content {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .brand-story__text {
    grid-column: 1 / -1;
    max-width: 780px;
  }

  .page-about .brand-story__stat {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .page-about .team-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
}

@media (min-width: 1025px) {
  .page-about .subscribe-mobile__inner {
    grid-template-columns: 200px 1fr;
    gap: 3rem;
  }

  .page-about .subscribe-mobile__visual {
    order: 0;
  }

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

  .page-about .brand-story {
    padding-top: 3rem;
    padding-bottom: 5rem;
  }
}

/* ===== 减少动效 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-about .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-about .team-card,
  .page-about .team-card__badge,
  .page-about .team-card__extra,
  .page-about .subscribe-mobile__mockup,
  .page-about .subscribe-toast {
    transition: none;
  }

  .page-about .team-card__extra {
    max-height: none;
    opacity: 1;
    margin-top: 1rem;
  }
}

/* ===== 窄屏保护 ===== */
@media (max-width: 640px) {
  .page-about .breadcrumb {
    padding: 0.75rem 1rem;
    font-size: 0.78rem;
  }

  .page-about .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .page-about .section {
    padding-top: 2rem;
    padding-bottom: 2rem;
  }

  .page-about .team-card__matches {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .subscribe-mobile__mockup {
    max-width: 140px;
  }

  .page-about .subscribe-toast {
    font-size: 0.82rem;
    padding: 0.6rem 1.2rem;
    white-space: normal;
    max-width: 90vw;
    text-align: center;
  }
}