/* =============================================
   page-faq – 支持中心专属样式
   作用域：.page-faq
   移动端优先 + 桌面媒体查询
   ============================================= */
.page-faq {
  --faq-deco-width: 340px;
  --faq-deco-gap: 48px;
  --faq-tab-radius: 6px;
  --faq-gold-glow: 0 0 20px rgba(255, 215, 0, 0.3);
  --faq-red-glow: 0 0 20px rgba(230, 0, 18, 0.25);
  color: var(--color-light-text, #F0F0F0);
  background-color: var(--color-primary-black, #0A0A0A);
  position: relative;
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 8px);
  padding: var(--space-lg, 32px) var(--space-md, 16px) 0;
  max-width: var(--container-max, 1280px);
  margin: 0 auto;
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
  font-size: 14px;
  color: var(--color-muted-text, #999999);
}
.page-faq .breadcrumb__link {
  color: var(--color-muted-text, #999999);
  text-decoration: none;
  transition: color var(--transition-fast, 200ms);
}
.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--color-secondary-gold, #FFD700);
}
.page-faq .breadcrumb__sep {
  color: var(--color-muted-text, #999999);
  font-size: 18px;
  line-height: 1;
}
.page-faq .breadcrumb__current {
  color: var(--color-light-text, #F0F0F0);
  font-weight: 700;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg, 32px);
  max-width: var(--container-max, 1280px);
  margin: 0 auto;
  padding: var(--space-xl, 64px) var(--space-md, 16px) var(--space-lg, 32px);
}
.page-faq .faq-hero__graphic {
  position: relative;
  flex-shrink: 0;
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
  border-radius: var(--radius-lg, 16px);
  overflow: hidden;
}
.page-faq .faq-hero__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg, 16px);
}
.page-faq .faq-hero__graphic-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255, 215, 0, 0.15), transparent 70%);
  pointer-events: none;
  border-radius: var(--radius-lg, 16px);
}
.page-faq .faq-hero__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.page-faq .faq-hero__title {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: clamp(42px, 10vw, 72px);
  line-height: 1;
  color: var(--color-primary-red, #E60012);
  text-transform: uppercase;
  transform: skewX(-4deg);
  margin: 0 0 var(--space-sm, 8px);
  letter-spacing: 0.02em;
  text-shadow: var(--faq-red-glow);
}
.page-faq .faq-hero__desc {
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
  font-size: clamp(16px, 2.5vw, 20px);
  line-height: 1.6;
  color: var(--color-light-text, #F0F0F0);
  margin: 0 0 var(--space-md, 16px);
  max-width: 680px;
}
.page-faq .faq-hero__note {
  font-family: var(--font-accent, 'Courier New', monospace);
  font-size: 14px;
  color: var(--color-muted-text, #999999);
  margin: 0;
  letter-spacing: 0.03em;
}

/* ---------- 标签切换 ---------- */
.page-faq .faq-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm, 8px);
  max-width: var(--container-max, 1280px);
  margin: 0 auto;
  padding: 0 var(--space-md, 16px) var(--space-lg, 32px);
  border-bottom: 1px solid var(--color-medium-surface, #2C2C2C);
}
.page-faq .faq-tabs__btn {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: 16px;
  padding: 10px 22px;
  border: none;
  background: transparent;
  color: var(--color-muted-text, #999999);
  cursor: pointer;
  border-radius: var(--faq-tab-radius);
  transition: all var(--transition-base, 300ms);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
}
.page-faq .faq-tabs__btn:hover,
.page-faq .faq-tabs__btn:focus-visible {
  color: var(--color-light-text, #F0F0F0);
  background: var(--color-dark-surface, #1A1A1A);
}
.page-faq .faq-tabs__btn--active,
.page-faq .faq-tabs__btn[aria-selected="true"] {
  color: var(--color-primary-red, #E60012);
  background: var(--color-dark-surface, #1A1A1A);
  box-shadow: inset 0 -3px 0 var(--color-primary-red, #E60012), var(--faq-red-glow);
}

/* ---------- 面板容器 ---------- */
.page-faq .faq-panels {
  max-width: var(--container-max, 1280px);
  margin: 0 auto;
  padding: 0 var(--space-md, 16px) var(--space-2xl, 80px);
}

/* ---------- 单个面板 ---------- */
.page-faq .faq-panel {
  display: none;
}
.page-faq .faq-panel--active,
.page-faq .faq-panel[aria-hidden="false"] {
  display: block;
}
.page-faq .faq-panel__heading {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: clamp(24px, 4vw, 32px);
  color: var(--color-secondary-gold, #FFD700);
  margin: 0 0 var(--space-lg, 32px);
  padding-bottom: var(--space-sm, 8px);
  border-bottom: 2px solid var(--color-secondary-gold, #FFD700);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  transform: skewX(-3deg);
}

/* ---------- 平板端配图 ---------- */
.page-faq .faq-tablet-visual {
  margin-bottom: var(--space-lg, 32px);
  border-radius: var(--radius-md, 8px);
  overflow: hidden;
  max-width: 600px;
  background: var(--color-dark-surface, #1A1A1A);
  border: 1px solid var(--color-medium-surface, #2C2C2C);
}
.page-faq .faq-tablet-visual__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 手风琴列表 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm, 8px);
}

/* ---------- 单个手风琴项 ---------- */
.page-faq .faq-item {
  background: var(--color-dark-surface, #1A1A1A);
  border-radius: var(--radius-md, 8px);
  border: 1px solid var(--color-medium-surface, #2C2C2C);
  transition: border-color var(--transition-base, 300ms), box-shadow var(--transition-base, 300ms);
  overflow: hidden;
}
.page-faq .faq-item:hover {
  border-color: rgba(255, 215, 0, 0.3);
  box-shadow: var(--faq-gold-glow);
}
.page-faq .faq-item[open] {
  border-color: var(--color-secondary-gold, #FFD700);
  box-shadow: var(--faq-gold-glow);
}

/* ---------- 问题（summary） ---------- */
.page-faq .faq-item__question {
  display: flex;
  align-items: center;
  gap: var(--space-md, 16px);
  padding: var(--space-md, 16px) var(--space-lg, 32px);
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
  font-size: clamp(15px, 1.8vw, 18px);
  font-weight: 600;
  color: var(--color-light-text, #F0F0F0);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--transition-fast, 200ms);
}
.page-faq .faq-item__question::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__question:hover {
  background: rgba(255, 215, 0, 0.04);
}
.page-faq .faq-item__question:focus-visible {
  outline: 2px solid var(--color-secondary-gold, #FFD700);
  outline-offset: -2px;
}

/* 金色问号图标 */
.page-faq .faq-item__icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--color-secondary-gold, #FFD700);
  transition: transform var(--transition-base, 300ms);
}
.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(10deg) scale(1.1);
}

/* 展开指示器（右侧箭头） */
.page-faq .faq-item__indicator {
  margin-left: auto;
  flex-shrink: 0;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--color-muted-text, #999);
  border-bottom: 2px solid var(--color-muted-text, #999);
  transform: rotate(45deg);
  transition: transform var(--transition-base, 300ms), border-color var(--transition-base, 300ms);
}
.page-faq .faq-item[open] .faq-item__indicator {
  transform: rotate(-135deg);
  border-color: var(--color-secondary-gold, #FFD700);
}

/* ---------- 答案 ---------- */
.page-faq .faq-item__answer {
  padding: 0 var(--space-lg, 32px) var(--space-lg, 32px);
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-light-text, #F0F0F0);
  border-top: 1px solid var(--color-medium-surface, #2C2C2C);
  padding-top: var(--space-md, 16px);
}
.page-faq .faq-item__answer p {
  margin: 0 0 var(--space-sm, 8px);
}

/* 复制按钮 */
.page-faq .faq-item__copy {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs, 4px);
  padding: 6px 14px;
  font-family: var(--font-accent, 'Courier New', monospace);
  font-size: 12px;
  color: var(--color-secondary-gold, #FFD700);
  background: transparent;
  border: 1px solid var(--color-secondary-gold, #FFD700);
  border-radius: var(--radius-sm, 4px);
  cursor: pointer;
  transition: all var(--transition-fast, 200ms);
  margin-top: var(--space-sm, 8px);
}
.page-faq .faq-item__copy:hover,
.page-faq .faq-item__copy:focus-visible {
  background: var(--color-secondary-gold, #FFD700);
  color: var(--color-primary-black, #0A0A0A);
}

/* ---------- 底部联系引导 ---------- */
.page-faq .faq-cta {
  background: var(--color-dark-surface, #1A1A1A);
  border-top: 2px solid var(--color-primary-red, #E60012);
  padding: var(--space-2xl, 80px) var(--space-md, 16px);
  margin-top: var(--space-xl, 64px);
}
.page-faq .faq-cta__inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.page-faq .faq-cta__title {
  font-family: var(--font-heading, Impact, 'Arial Black', sans-serif);
  font-size: clamp(28px, 5vw, 42px);
  color: var(--color-primary-red, #E60012);
  margin: 0 0 var(--space-md, 16px);
  text-transform: uppercase;
  transform: skewX(-4deg);
  text-shadow: var(--faq-red-glow);
}
.page-faq .faq-cta__text {
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-light-text, #F0F0F0);
  margin: 0 0 var(--space-lg, 32px);
}
.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md, 16px);
  margin-bottom: var(--space-lg, 32px);
}
.page-faq .faq-cta__note {
  font-size: 14px;
  color: var(--color-muted-text, #999999);
  font-family: var(--font-body, 'Helvetica Neue', Arial, sans-serif);
}
.page-faq .faq-cta__link {
  color: var(--color-accent-blue, #00BFFF);
  text-decoration: none;
  transition: color var(--transition-fast, 200ms);
}
.page-faq .faq-cta__link:hover,
.page-faq .faq-cta__link:focus-visible {
  color: var(--color-light-text, #F0F0F0);
  text-decoration: underline;
}

/* =============================================
   桌面端媒体查询 (min-width: 768px)
   ============================================= */
@media (min-width: 768px) {
  .page-faq .breadcrumb {
    padding-left: var(--space-lg, 32px);
    padding-right: var(--space-lg, 32px);
  }

  .page-faq .faq-hero {
    flex-direction: row;
    align-items: stretch;
    gap: var(--faq-deco-gap);
    padding: var(--space-2xl, 80px) var(--space-lg, 32px) var(--space-xl, 64px);
  }
  .page-faq .faq-hero__graphic {
    width: var(--faq-deco-width);
    max-width: var(--faq-deco-width);
    min-height: 500px;
    margin: 0;
    align-self: stretch;
  }
  .page-faq .faq-hero__img {
    height: 100%;
    object-fit: cover;
  }
  .page-faq .faq-hero__title {
    font-size: 72px;
  }
  .page-faq .faq-hero__desc {
    font-size: 20px;
  }

  .page-faq .faq-tabs {
    padding-left: var(--space-lg, 32px);
    padding-right: var(--space-lg, 32px);
    gap: var(--space-md, 16px);
  }
  .page-faq .faq-tabs__btn {
    font-size: 18px;
    padding: 12px 28px;
  }

  .page-faq .faq-panels {
    padding-left: var(--space-lg, 32px);
    padding-right: var(--space-lg, 32px);
  }

  .page-faq .faq-item__question {
    padding: var(--space-md, 16px) var(--space-lg, 32px);
    font-size: 18px;
  }
  .page-faq .faq-item__answer {
    padding-left: var(--space-lg, 32px);
    padding-right: var(--space-lg, 32px);
    font-size: 17px;
  }
}

/* =============================================
   大桌面端 (min-width: 1024px)
   ============================================= */
@media (min-width: 1024px) {
  .page-faq .faq-hero__graphic {
    min-height: 580px;
  }
  .page-faq .faq-panel__heading {
    font-size: 32px;
  }
  .page-faq .faq-list {
    gap: var(--space-md, 16px);
  }
}

/* =============================================
   宽屏溢出保护
   ============================================= */
@media (min-width: 1400px) {
  .page-faq .faq-hero {
    padding-left: 0;
    padding-right: 0;
  }
  .page-faq .faq-tabs {
    padding-left: 0;
    padding-right: 0;
  }
  .page-faq .faq-panels {
    padding-left: 0;
    padding-right: 0;
  }
}