/* ===== page-faq 专属样式 ===== */
.page-faq {
  --faq-bg: var(--clr-primary-900);
  --faq-card-bg: var(--clr-neutral-100);
  --faq-card-border: var(--clr-primary-700);
  --faq-title-color: var(--clr-accent);
  --faq-text-color: var(--clr-neutral-100);
  --faq-question-bg: rgba(255,255,255,0.04);
  --faq-question-hover: rgba(33,150,243,0.08);
  --faq-answer-bg: rgba(255,255,255,0.02);
  --faq-accent-rule: var(--clr-accent);
  --faq-shadow-card: 0 2px 0 rgba(255,215,0,0.15), 0 8px 24px rgba(0,0,0,0.5);
  --faq-radius: 6px;
  --faq-gap: 2rem;

  display: block;
  background-color: var(--faq-bg);
  color: var(--faq-text-color);
  font-family: var(--ff-primary);
  padding: 2.5rem 0 4rem;
  line-height: var(--lh-body);
}

/* 容器复用共享 .container 但在此微调 */
.page-faq .container {
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
  padding: 0 var(--container-pad, 1.5rem);
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  color: var(--clr-primary-300);
}
.page-faq .breadcrumb__link {
  color: var(--clr-primary-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  border-bottom-color: var(--clr-accent);
  color: var(--clr-accent);
}
.page-faq .breadcrumb__sep {
  color: var(--clr-accent);
  font-weight: 700;
  margin: 0 0.1rem;
}
.page-faq .breadcrumb__current {
  color: var(--clr-accent-light);
  font-weight: 600;
}

/* 页面标题区 */
.page-faq .page-title {
  font-size: var(--fs-heading-lg);
  font-weight: var(--fw-heading);
  color: var(--clr-accent);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.page-faq .page-subtitle {
  font-size: 1.1rem;
  color: var(--clr-primary-300);
  margin: 0 0 2rem;
  max-width: 42em;
  line-height: 1.5;
}

/* 搜索框 */
.page-faq .faq-search {
  position: relative;
  margin-bottom: 2.5rem;
  max-width: 36rem;
}
.page-faq .faq-search__input {
  width: 100%;
  padding: 0.9rem 1rem 0.9rem 3rem;
  font-size: 1rem;
  font-family: var(--ff-primary);
  color: var(--clr-neutral-100);
  background-color: rgba(255,255,255,0.06);
  border: 1.5px solid var(--clr-primary-700);
  border-radius: var(--faq-radius);
  transition: border-color 0.25s, box-shadow 0.25s;
  outline: none;
  box-sizing: border-box;
}
.page-faq .faq-search__input::placeholder {
  color: var(--clr-primary-300);
  opacity: 0.7;
}
.page-faq .faq-search__input:focus,
.page-faq .faq-search__input:hover {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(255,215,0,0.12);
}
.page-faq .faq-search__icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--clr-accent);
  display: flex;
  align-items: center;
  pointer-events: none;
}
.page-faq .faq-search__icon svg {
  display: block;
}

/* 两栏网格 */
.page-faq .faq-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap, 2rem);
  margin-bottom: var(--faq-gap, 2rem);
}

/* FAQ 分区卡片 */
.page-faq .faq-section {
  background-color: var(--faq-card-bg);
  color: var(--clr-neutral-900);
  border-radius: var(--faq-radius);
  box-shadow: var(--faq-shadow-card);
  padding: 1.5rem 1.25rem 1.75rem;
  border-top: 4px solid var(--clr-accent);
  transition: box-shadow 0.3s;
}
.page-faq .faq-section:hover {
  box-shadow: 0 4px 0 rgba(255,215,0,0.2), 0 12px 32px rgba(0,0,0,0.55);
}

/* 分区头部 */
.page-faq .faq-section__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.page-faq .faq-section__icon {
  width: 60px;
  height: 60px;
  border-radius: 4px;
  object-fit: cover;
  border: 2px solid var(--clr-primary-700);
  background-color: var(--clr-primary-900);
  box-shadow: 0 2px 0 var(--clr-accent);
  flex-shrink: 0;
}
.page-faq .faq-section__title {
  font-size: var(--fs-heading-md);
  font-weight: var(--fw-heading);
  color: var(--clr-primary-900);
  margin: 0;
  line-height: 1.2;
  flex: 1 1 auto;
}
.page-faq .tag--section {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1.5px solid var(--clr-accent);
  color: var(--clr-primary-900);
  background-color: rgba(255,215,0,0.1);
  border-radius: 2px;
  line-height: 1.4;
  white-space: nowrap;
}

/* 问题列表容器 */
.page-faq .faq-section__items {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* 单个问题项 (details) */
.page-faq .faq-item {
  border: 1px solid rgba(26,58,107,0.2);
  border-radius: var(--faq-radius);
  background-color: rgba(245,247,250,0.6);
  overflow: hidden;
  transition: border-color 0.2s, background-color 0.2s;
}
.page-faq .faq-item:hover {
  border-color: var(--clr-primary-500);
  background-color: rgba(245,247,250,0.85);
}

/* 问题标题 (summary) */
.page-faq .faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--clr-primary-900);
  cursor: pointer;
  list-style: none;
  transition: background-color 0.2s, color 0.2s;
  user-select: none;
  line-height: 1.4;
}
.page-faq .faq-item__question::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__question::marker {
  display: none;
  content: "";
}
.page-faq .faq-item[open] > .faq-item__question {
  background-color: var(--clr-primary-700);
  color: var(--clr-neutral-100);
}
.page-faq .faq-item__question:hover,
.page-faq .faq-item__question:focus-visible {
  background-color: var(--clr-primary-500);
  color: var(--clr-neutral-100);
  outline: none;
}

/* 展开指示器 */
.page-faq .faq-item__indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
  transition: transform 0.3s;
  position: relative;
}
.page-faq .faq-item__indicator::before,
.page-faq .faq-item__indicator::after {
  content: "";
  position: absolute;
  background-color: currentColor;
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}
.page-faq .faq-item__indicator::before {
  width: 2px;
  height: 1rem;
}
.page-faq .faq-item__indicator::after {
  width: 1rem;
  height: 2px;
}
.page-faq .faq-item[open] .faq-item__indicator::before {
  transform: rotate(90deg);
  opacity: 0;
}
.page-faq .faq-item[open] .faq-item__indicator {
  transform: rotate(45deg);
}

/* 答案区域 */
.page-faq .faq-item__answer {
  padding: 0.6rem 1rem 1.2rem;
  font-size: 0.9rem;
  color: var(--clr-primary-700);
  line-height: 1.65;
  background-color: var(--faq-answer-bg);
  border-top: 1px solid rgba(26,58,107,0.08);
}
.page-faq .faq-item__answer p {
  margin: 0 0 0.75rem;
}
.page-faq .faq-item__answer p:last-child {
  margin-bottom: 0;
}

/* 答案中的按钮紧凑变体 */
.page-faq .btn--sm {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 3px;
  text-decoration: none;
  text-align: center;
  transition: background-color 0.2s, transform 0.15s;
  line-height: 1.5;
}
.page-faq .btn--accent.btn--sm {
  background-color: var(--clr-accent);
  color: var(--clr-primary-900);
  border: 1px solid var(--clr-accent);
}
.page-faq .btn--accent.btn--sm:hover,
.page-faq .btn--accent.btn--sm:focus-visible {
  background-color: var(--clr-accent-light);
  transform: translateY(-1px);
}

/* 通用问题区域 */
.page-faq .faq-general {
  background-color: var(--faq-card-bg);
  color: var(--clr-neutral-900);
  border-radius: var(--faq-radius);
  box-shadow: var(--faq-shadow-card);
  padding: 1.5rem 1.25rem 1.75rem;
  border-top: 4px solid var(--clr-primary-500);
  margin-bottom: var(--faq-gap, 2rem);
  transition: box-shadow 0.3s;
}
.page-faq .faq-general:hover {
  box-shadow: 0 4px 0 rgba(33,150,243,0.25), 0 12px 32px rgba(0,0,0,0.55);
}
.page-faq .faq-general__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.page-faq .faq-general__title {
  font-size: var(--fs-heading-md);
  font-weight: var(--fw-heading);
  color: var(--clr-primary-900);
  margin: 0;
  line-height: 1.2;
  flex: 1 1 auto;
}
.page-faq .tag--general {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1.5px solid var(--clr-primary-500);
  color: var(--clr-primary-700);
  background-color: rgba(33,150,243,0.08);
  border-radius: 2px;
  line-height: 1.4;
  white-space: nowrap;
}
.page-faq .faq-general__items {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.page-faq .faq-general .faq-item {
  border-color: rgba(33,150,243,0.15);
}
.page-faq .faq-general .faq-item:hover {
  border-color: var(--clr-primary-500);
}
.page-faq .faq-general .faq-item[open] > .faq-item__question {
  background-color: var(--clr-primary-500);
  color: var(--clr-neutral-100);
}

/* 底部 CTA */
.page-faq .faq-cta {
  margin-top: 0.5rem;
  padding: 2rem 1.5rem;
  text-align: center;
  background-color: rgba(255,255,255,0.03);
  border: 1px solid var(--clr-primary-700);
  border-radius: var(--faq-radius);
}
.page-faq .faq-cta__text {
  font-size: 1.05rem;
  color: var(--clr-primary-300);
  margin: 0 0 1rem;
  max-width: 32em;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}
.page-faq .btn--primary.btn--lg {
  display: inline-block;
  padding: 0.8rem 2.2rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 4px;
  text-decoration: none;
  text-align: center;
  border: 2px solid var(--clr-accent);
  background-color: var(--clr-accent);
  color: var(--clr-primary-900);
  transition: background-color 0.25s, transform 0.15s, box-shadow 0.25s;
  line-height: 1.5;
}
.page-faq .btn--primary.btn--lg:hover,
.page-faq .btn--primary.btn--lg:focus-visible {
  background-color: var(--clr-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 0 rgba(255,215,0,0.25);
  outline: none;
}

/* 辅助 */
.page-faq .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ===== 响应式：窄屏优先 → 桌面两栏 ===== */
@media (min-width: 768px) {
  .page-faq {
    padding: 3.5rem 0 5rem;
  }

  .page-faq .faq-columns {
    grid-template-columns: 1fr 1fr;
    gap: var(--faq-gap, 2rem);
  }

  .page-faq .faq-section {
    padding: 1.75rem 1.5rem 2rem;
  }

  .page-faq .faq-general {
    padding: 1.75rem 1.5rem 2rem;
  }

  .page-faq .faq-section__icon {
    width: 72px;
    height: 72px;
  }

  .page-faq .faq-item__question {
    font-size: 1rem;
    padding: 1rem 1.2rem;
  }

  .page-faq .faq-item__answer {
    padding: 0.8rem 1.2rem 1.4rem;
    font-size: 0.95rem;
  }

  .page-faq .faq-cta {
    padding: 2.5rem 2rem;
  }

  .page-faq .faq-cta__text {
    font-size: 1.15rem;
  }

  .page-faq .btn--primary.btn--lg {
    font-size: 1.05rem;
    padding: 0.9rem 2.5rem;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-columns {
    gap: 2.5rem;
  }

  .page-faq .faq-section {
    padding: 2rem 1.75rem 2.25rem;
  }

  .page-faq .faq-general {
    padding: 2rem 1.75rem 2.25rem;
  }
}