.page-products {
  --page-gold-glow: 0 0 12px rgba(245, 166, 35, 0.25);
  --page-blue-glow: 0 0 12px rgba(0, 212, 255, 0.25);
  --page-card-radius: 12px;
  --page-step-size: 3rem;
  --page-tab-transition: 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  display: block;
  background: var(--clr-bg-dark, #0D0B1E);
  color: var(--clr-text-primary, #FFFFFF);
  padding: 0 0 var(--space-2xl, 5rem);
  min-height: 60vh;
}

/* ── 面包屑 ── */
.page-products .breadcrumb {
  padding-top: calc(var(--header-top-height, 2.25rem) + var(--header-main-height, 3.5rem) + var(--space-lg, 2rem));
  padding-bottom: var(--space-sm, 0.5rem);
  font-size: 0.875rem;
}
.page-products .breadcrumb a {
  color: var(--clr-text-secondary, #BFB8D6);
  text-decoration: none;
  transition: color var(--transition-base, 0.3s ease);
}
.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus {
  color: var(--clr-gold, #F5A623);
  outline: none;
}
.page-products .breadcrumb__separator {
  color: var(--clr-gold, #F5A623);
  margin: 0 var(--space-xs, 0.25rem);
}
.page-products .breadcrumb span[aria-current="page"] {
  color: var(--clr-gold-light, #FFD773);
  font-weight: var(--font-weight-heading, 800);
}

/* ── Hero ── */
.page-products__hero {
  padding: var(--space-xl, 3rem) 0 var(--space-lg, 2rem);
  border-bottom: 1px solid var(--clr-divider, rgba(255,255,255,0.12));
  margin-bottom: var(--space-lg, 2rem);
}
.page-products__hero-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: var(--font-weight-heading, 800);
  font-size: clamp(1.75rem, 5vw, 3rem);
  line-height: var(--line-height-heading, 1.1);
  color: var(--clr-gold, #F5A623);
  text-shadow: var(--page-gold-glow);
  margin: 0 0 var(--space-sm, 0.5rem);
}
.page-products__hero-desc {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-weight: var(--font-weight-body, 400);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  line-height: var(--line-height-body, 1.6);
  color: var(--clr-text-secondary, #BFB8D6);
  max-width: 640px;
  margin: 0;
}

/* ── 标签页容器 ── */
.page-products__tabs {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg, 2rem);
  margin-bottom: var(--space-2xl, 5rem);
}
.page-products__tab-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* ── 标签导航 ── */
.page-products__tab-nav {
  display: flex;
  flex-flow: row nowrap;
  gap: var(--space-sm, 0.5rem);
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--clr-primary-400, #6A3E99) transparent;
  padding-bottom: var(--space-xs, 0.25rem);
  border-bottom: 1px solid var(--clr-divider, rgba(255,255,255,0.12));
}
.page-products__tab-nav::-webkit-scrollbar {
  height: 4px;
}
.page-products__tab-nav::-webkit-scrollbar-thumb {
  background: var(--clr-primary-400, #6A3E99);
  border-radius: 4px;
}
.page-products__tab-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 0.5rem);
  padding: var(--space-sm, 0.5rem) var(--space-md, 1rem);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--page-card-radius, 12px);
  cursor: pointer;
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 600;
  font-size: 1rem;
  color: var(--clr-text-secondary, #BFB8D6);
  transition: all var(--transition-base, 0.3s ease);
  white-space: nowrap;
  flex-shrink: 0;
}
.page-products__tab-label:hover,
.page-products__tab-label:focus-visible {
  color: var(--clr-gold-light, #FFD773);
  border-color: var(--clr-surface-overlay, rgba(255,255,255,0.08));
  background: var(--clr-surface-overlay, rgba(255,255,255,0.08));
  outline: none;
}
#tab-account:checked ~ .page-products__tab-nav label[for="tab-account"],
#tab-records:checked ~ .page-products__tab-nav label[for="tab-records"],
#tab-guide:checked ~ .page-products__tab-nav label[for="tab-guide"] {
  color: var(--clr-gold, #F5A623);
  background: var(--clr-surface-overlay, rgba(255,255,255,0.08));
  border-color: var(--clr-gold, #F5A623);
  box-shadow: var(--page-gold-glow);
}
.page-products__tab-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  font-size: 1.25rem;
  font-weight: var(--font-weight-heading, 800);
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-style: italic;
  color: var(--clr-gold, #F5A623);
  background: var(--clr-primary-200, #2D1B4E);
  border-radius: 50%;
  transition: all var(--transition-base, 0.3s ease);
  flex-shrink: 0;
}
#tab-account:checked ~ .page-products__tab-nav label[for="tab-account"] .page-products__tab-num,
#tab-records:checked ~ .page-products__tab-nav label[for="tab-records"] .page-products__tab-num,
#tab-guide:checked ~ .page-products__tab-nav label[for="tab-guide"] .page-products__tab-num {
  background: var(--clr-gold, #F5A623);
  color: var(--clr-primary-100, #1A0A2E);
  box-shadow: var(--page-gold-glow);
}
.page-products__tab-name {
  font-size: 0.95rem;
}

/* ── 面板容器 ── */
.page-products__tab-panels {
  position: relative;
  min-height: 280px;
}

/* ── 单个面板 ── */
.page-products__panel {
  display: none;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--page-tab-transition), transform var(--page-tab-transition);
  background: var(--clr-bg-card, #1E1A3A);
  border-radius: var(--page-card-radius, 12px);
  box-shadow: var(--shadow-card, 0 4px 24px rgba(0,0,0,0.3));
  border: 1px solid var(--clr-divider, rgba(255,255,255,0.12));
  overflow: hidden;
}
#tab-account:checked ~ .page-products__tab-panels #panel-account,
#tab-records:checked ~ .page-products__tab-panels #panel-records,
#tab-guide:checked ~ .page-products__tab-panels #panel-guide {
  display: block;
  opacity: 1;
  transform: translateY(0);
}
.page-products__panel-inner {
  display: flex;
  flex-flow: column nowrap;
  gap: var(--space-lg, 2rem);
  padding: var(--space-lg, 2rem);
}
.page-products__panel-content {
  flex: 1;
  min-width: 0;
}
.page-products__panel-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: var(--font-weight-heading, 800);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: var(--line-height-heading, 1.1);
  color: var(--clr-gold-light, #FFD773);
  margin: 0 0 var(--space-sm, 0.5rem);
}
.page-products__panel-desc {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-weight: var(--font-weight-body, 400);
  font-size: 1rem;
  line-height: var(--line-height-body, 1.6);
  color: var(--clr-text-secondary, #BFB8D6);
  margin: 0 0 var(--space-md, 1rem);
}
.page-products__panel-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-lg, 2rem);
  display: flex;
  flex-flow: column nowrap;
  gap: var(--space-sm, 0.5rem);
}
.page-products__panel-list li {
  position: relative;
  padding-left: 1.5rem;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-weight: var(--font-weight-body, 400);
  font-size: 0.95rem;
  line-height: var(--line-height-body, 1.6);
  color: var(--clr-text-primary, #FFFFFF);
}
.page-products__panel-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--clr-neon-blue, #00D4FF);
  font-weight: bold;
}
.page-products__panel-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm, 0.5rem);
}
.page-products__panel-img {
  flex-shrink: 0;
  border-radius: var(--border-radius, 8px);
  overflow: hidden;
  background: var(--clr-primary-200, #2D1B4E);
  align-self: center;
}
.page-products__panel-img img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ── 标签背景装饰 ── */
.page-products__tab-decor {
  display: none;
}

/* ── 下载前须知 ── */
.page-products__notice {
  margin-bottom: var(--space-2xl, 5rem);
  padding: var(--space-lg, 2rem);
  background: linear-gradient(135deg, var(--clr-primary-200, #2D1B4E) 0%, var(--clr-bg-card, #1E1A3A) 100%);
  border-radius: var(--page-card-radius, 12px);
  border: 1px solid var(--clr-divider, rgba(255,255,255,0.12));
  box-shadow: var(--shadow-card, 0 4px 24px rgba(0,0,0,0.3));
}
.page-products__notice-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: var(--font-weight-heading, 800);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: var(--line-height-heading, 1.1);
  color: var(--clr-neon-blue, #00D4FF);
  text-shadow: var(--page-blue-glow);
  margin: 0 0 var(--space-md, 1rem);
}
.page-products__notice-inner {
  display: flex;
  flex-flow: column nowrap;
  gap: var(--space-lg, 2rem);
}
.page-products__notice-content {
  flex: 1;
  min-width: 0;
}
.page-products__notice-content p {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-weight: var(--font-weight-body, 400);
  font-size: 1rem;
  line-height: var(--line-height-body, 1.6);
  color: var(--clr-text-secondary, #BFB8D6);
  margin: 0 0 var(--space-md, 1rem);
}
.page-products__notice-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm, 0.5rem);
  color: var(--clr-neon-blue, #00D4FF);
  border-color: var(--clr-neon-blue, #00D4FF);
}
.page-products__notice-btn:hover,
.page-products__notice-btn:focus-visible {
  background: var(--clr-neon-blue, #00D4FF);
  color: var(--clr-primary-100, #1A0A2E);
  box-shadow: var(--page-blue-glow);
  outline: none;
}
.page-products__notice-img {
  border-radius: var(--border-radius, 8px);
  overflow: hidden;
  background: var(--clr-primary-200, #2D1B4E);
  align-self: center;
}
.page-products__notice-img img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ── WELCOME 新人奖励 ── */
.page-products__welcome {
  margin-bottom: var(--space-2xl, 5rem);
  padding: var(--space-lg, 2rem);
  background: var(--clr-bg-card, #1E1A3A);
  border-radius: var(--page-card-radius, 12px);
  border: 1px solid var(--clr-divider, rgba(255,255,255,0.12));
  box-shadow: var(--shadow-card, 0 4px 24px rgba(0,0,0,0.3));
}
.page-products__welcome-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: var(--font-weight-heading, 800);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: var(--line-height-heading, 1.1);
  color: var(--clr-gold, #F5A623);
  text-shadow: var(--page-gold-glow);
  margin: 0 0 var(--space-xs, 0.25rem);
}
.page-products__welcome-desc {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-weight: var(--font-weight-body, 400);
  font-size: 1rem;
  line-height: var(--line-height-body, 1.6);
  color: var(--clr-text-secondary, #BFB8D6);
  margin: 0 0 var(--space-lg, 2rem);
}
.page-products__welcome-steps {
  display: flex;
  flex-flow: column nowrap;
  gap: var(--space-md, 1rem);
  margin-bottom: var(--space-lg, 2rem);
}
.page-products__step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md, 1rem);
  padding: var(--space-md, 1rem);
  background: var(--clr-surface-overlay, rgba(255,255,255,0.08));
  border-radius: var(--border-radius, 8px);
  border-left: 3px solid var(--clr-neon-blue, #00D4FF);
  transition: background var(--transition-base, 0.3s ease), box-shadow var(--transition-base, 0.3s ease);
}
.page-products__step:hover {
  background: var(--clr-primary-200, #2D1B4E);
  box-shadow: var(--page-blue-glow);
}
.page-products__step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--page-step-size, 3rem);
  height: var(--page-step-size, 3rem);
  font-size: 1.5rem;
  font-weight: var(--font-weight-heading, 800);
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-style: italic;
  color: var(--clr-primary-100, #1A0A2E);
  background: var(--clr-gold, #F5A623);
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: var(--page-gold-glow);
}
.page-products__step-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: var(--line-height-heading, 1.1);
  color: var(--clr-gold-light, #FFD773);
  margin: 0 0 var(--space-xs, 0.25rem);
}
.page-products__step-desc {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-weight: var(--font-weight-body, 400);
  font-size: 0.9rem;
  line-height: var(--line-height-body, 1.6);
  color: var(--clr-text-secondary, #BFB8D6);
  margin: 0;
}
.page-products__welcome-img {
  border-radius: var(--border-radius, 8px);
  overflow: hidden;
  background: var(--clr-primary-200, #2D1B4E);
}
.page-products__welcome-img img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ── 内部链接区域 ── */
.page-products__links {
  padding: var(--space-lg, 2rem) 0;
  border-top: 1px solid var(--clr-divider, rgba(255,255,255,0.12));
}
.page-products__links-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: var(--font-weight-heading, 800);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  line-height: var(--line-height-heading, 1.1);
  color: var(--clr-text-secondary, #BFB8D6);
  margin: 0 0 var(--space-md, 1rem);
  text-align: center;
}
.page-products__links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-md, 1rem);
}
.page-products__link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm, 0.5rem);
  padding: var(--space-md, 1rem) var(--space-sm, 0.5rem);
  background: var(--clr-surface-overlay, rgba(255,255,255,0.08));
  border-radius: var(--border-radius, 8px);
  text-decoration: none;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--clr-text-secondary, #BFB8D6);
  border: 1px solid transparent;
  transition: all var(--transition-base, 0.3s ease);
  text-align: center;
}
.page-products__link-card:hover,
.page-products__link-card:focus-visible {
  color: var(--clr-gold, #F5A623);
  border-color: var(--clr-gold, #F5A623);
  background: var(--clr-primary-200, #2D1B4E);
  box-shadow: var(--page-gold-glow);
  outline: none;
  transform: translateY(-2px);
}
.page-products__link-icon {
  font-size: 1.5rem;
  color: var(--clr-neon-blue, #00D4FF);
  transition: color var(--transition-base, 0.3s ease);
}
.page-products__link-card:hover .page-products__link-icon,
.page-products__link-card:focus-visible .page-products__link-icon {
  color: var(--clr-gold, #F5A623);
}

/* ── 桌面端 (≥768px) ── */
@media (min-width: 768px) {
  .page-products__tabs {
    grid-template-columns: 220px 1fr;
    gap: var(--space-xl, 3rem);
  }
  .page-products__tab-nav {
    flex-flow: column nowrap;
    gap: var(--space-sm, 0.5rem);
    border-bottom: none;
    border-right: 1px solid var(--clr-divider, rgba(255,255,255,0.12));
    padding-right: var(--space-md, 1rem);
    padding-bottom: 0;
    overflow-x: visible;
  }
  .page-products__tab-label {
    white-space: normal;
    width: 100%;
    padding: var(--space-md, 1rem);
  }
  .page-products__tab-panels {
    min-height: 320px;
  }
  .page-products__panel-inner {
    flex-flow: row nowrap;
    align-items: flex-start;
  }
  .page-products__panel-img {
    max-width: 300px;
  }
  .page-products__notice-inner {
    flex-flow: row nowrap;
    align-items: center;
  }
  .page-products__notice-img {
    max-width: 400px;
  }
  .page-products__welcome-steps {
    flex-flow: row nowrap;
  }
  .page-products__step {
    flex: 1;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border-left: none;
    border-top: 3px solid var(--clr-neon-blue, #00D4FF);
    padding: var(--space-lg, 2rem) var(--space-md, 1rem);
  }
  .page-products__step-num {
    margin-bottom: var(--space-sm, 0.5rem);
  }
  .page-products__links-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-products__tab-decor {
    display: block;
    position: absolute;
    right: 0;
    bottom: -1.5rem;
    width: 200px;
    height: 200px;
    opacity: 0.15;
    pointer-events: none;
    overflow: hidden;
    border-radius: 50%;
    z-index: 0;
  }
  .page-products__tab-decor img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
}

/* ── 大桌面端 (≥1024px) ── */
@media (min-width: 1024px) {
  .page-products__tabs {
    grid-template-columns: 260px 1fr;
  }
  .page-products__tab-nav {
    gap: var(--space-md, 1rem);
  }
  .page-products__tab-label {
    font-size: 1.05rem;
    padding: var(--space-md, 1rem) var(--space-lg, 2rem);
  }
  .page-products__panel-inner {
    padding: var(--space-xl, 3rem);
    gap: var(--space-xl, 3rem);
  }
}