/* ========== 页面专属：常见问题 (page-faq) ========== */
.page-faq {
  --faq-marker-width: 6px;
  --faq-card-radius: 8px;
  --faq-transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --faq-bg-card: var(--color-surface);
  --faq-bg-body: var(--color-neutral-light);
  --faq-border-color: rgba(43, 59, 43, 0.12);
  --faq-shadow: 0 2px 8px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.03);
  --faq-summary-hover: rgba(232, 122, 30, 0.06);
  --faq-open-bg: rgba(43, 94, 59, 0.04);

  background: var(--faq-bg-body);
  min-height: 60vh;
  padding: 2rem 1rem 3rem;
}

/* 容器 */
.page-faq .container {
  max-width: var(--content-max-width, 1120px);
  margin: 0 auto;
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font: var(--font-caption);
  color: var(--color-metal-gray);
  margin-bottom: 1.2rem;
  padding: 0.4rem 0;
  letter-spacing: 0.02em;
}
.page-faq .breadcrumb__link {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-standard);
}
.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  border-bottom-color: var(--color-primary);
  outline: none;
}
.page-faq .breadcrumb__sep {
  color: var(--color-metal-gray);
  font-size: 1.1em;
  line-height: 1;
}
.page-faq .breadcrumb__current {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* 页面标题 */
.page-faq .page-heading {
  font: var(--font-heading);
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  letter-spacing: var(--letter-spacing-heading);
  color: var(--color-primary-variant);
  margin: 0 0 0.4rem;
  line-height: 1.15;
  position: relative;
  display: inline-block;
}
.page-faq .page-heading::after {
  content: '';
  display: block;
  width: 48px;
  height: 4px;
  background: var(--color-accent);
  margin-top: 0.3rem;
  border-radius: 2px;
}
.page-faq .page-desc {
  font: var(--font-body);
  color: var(--color-neutral-dark);
  margin: 0.6rem 0 2rem;
  max-width: 680px;
  line-height: 1.6;
}

/* ===== 手风琴区块 ===== */
.page-faq .faq-section {
  background: var(--faq-bg-card);
  border-radius: var(--faq-card-radius);
  box-shadow: var(--faq-shadow);
  margin-bottom: 1.5rem;
  overflow: hidden;
  border: var(--border-print);
  transition: box-shadow var(--transition-standard);
}
.page-faq .faq-section:focus-within {
  box-shadow: 0 0 0 2px var(--color-accent), var(--faq-shadow);
}

/* 区块标题 - 使用--section-marker色条 */
.page-faq .faq-section__title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font: var(--font-heading);
  font-size: clamp(1.1rem, 3vw, 1.35rem);
  letter-spacing: var(--letter-spacing-heading);
  color: var(--color-text-primary);
  margin: 0;
  padding: 1rem 1.25rem 0.75rem;
  background: rgba(245, 240, 232, 0.5);
  border-bottom: 1px solid var(--faq-border-color);
}
.page-faq .faq-section__marker {
  display: block;
  width: var(--faq-marker-width);
  height: 1.6em;
  border-radius: 3px;
  background: var(--section-marker, var(--color-primary));
  flex-shrink: 0;
  transition: background var(--transition-standard);
}

/* 区块主体 */
.page-faq .faq-section__body {
  padding: 0.25rem 0.25rem 0.5rem;
}

/* 带图片的区块：flex 布局 */
.page-faq .faq-section__body--with-image {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.page-faq .faq-section__questions {
  flex: 1 1 280px;
  min-width: 0;
}
.page-faq .faq-section__image-wrap {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 0.75rem 0.75rem 0.5rem 0;
}
.page-faq .faq-section__image {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 6px;
  background: var(--color-neutral-light);
  padding: 0.4rem;
  border: 1px solid var(--faq-border-color);
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

/* ===== 单个手风琴项 ===== */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-border-color);
  transition: background var(--faq-transition);
}
.page-faq .faq-item:last-child {
  border-bottom: none;
}
.page-faq .faq-item[open] {
  background: var(--faq-open-bg);
}

/* 问题行 (summary) */
.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1rem 1rem 1.25rem;
  font: var(--font-body);
  font-weight: 600;
  color: var(--color-text-primary);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--faq-transition), color var(--faq-transition);
  position: relative;
}
.page-faq .faq-item__q::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__q::marker {
  display: none;
  content: '';
}
.page-faq .faq-item__q:hover {
  background: var(--faq-summary-hover);
}
.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
  border-radius: 4px;
}

/* 自定义展开箭头 */
.page-faq .faq-item__q::after {
  content: '';
  margin-left: auto;
  width: 10px;
  height: 10px;
  border-right: 2.5px solid var(--color-primary);
  border-bottom: 2.5px solid var(--color-primary);
  transform: rotate(45deg);
  transition: transform var(--faq-transition);
  flex-shrink: 0;
  opacity: 0.7;
}
.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(-135deg);
  opacity: 1;
}

/* 问号图标 */
.page-faq .faq-item__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-text-on-dark);
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1;
  flex-shrink: 0;
  transition: background var(--faq-transition), transform var(--faq-transition);
}
.page-faq .faq-item[open] .faq-item__icon {
  background: var(--color-accent);
  transform: scale(1.05);
}

/* 答案区域 */
.page-faq .faq-item__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.35s ease, padding 0.3s ease;
  opacity: 0;
  padding: 0 1.25rem 0 3.2rem;
  color: var(--color-neutral-dark);
  font: var(--font-body);
  line-height: 1.7;
  border-left: 3px solid transparent;
}
.page-faq .faq-item[open] .faq-item__a {
  max-height: 600px;
  opacity: 1;
  padding: 0.6rem 1.25rem 1.2rem 3.2rem;
  border-left-color: var(--color-accent);
}

/* 答案内部排版 */
.page-faq .faq-item__a p {
  margin: 0 0 0.5rem;
}
.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item__a strong {
  color: var(--color-primary-variant);
  font-weight: 700;
}

/* 联系列表 */
.page-faq .faq-contact-list {
  margin: 0.4rem 0 0.2rem;
  padding: 0;
  list-style: none;
}
.page-faq .faq-contact-list li {
  padding: 0.2rem 0;
  font: var(--font-body);
}
.page-faq .faq-contact-list li strong {
  color: var(--color-primary-variant);
}

/* 内联链接 */
.page-faq .faq-link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-standard), color var(--transition-standard);
}
.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--color-accent-variant);
  border-bottom-color: var(--color-accent-variant);
  outline: none;
}
.page-faq .faq-item__a a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-standard), color var(--transition-standard);
}
.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--color-accent-variant);
  border-bottom-color: var(--color-accent-variant);
  outline: none;
}

/* ===== 滚动显现 (data-reveal) ===== */
.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.page-faq [data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-faq .faq-item__a {
    transition: none;
  }
  .page-faq .faq-item__q::after {
    transition: none;
  }
  .page-faq .faq-item__icon {
    transition: none;
  }
}

/* ===== 窄屏适配 (移动端优先) ===== */
@media (max-width: 640px) {
  .page-faq {
    padding: 1.2rem 0.75rem 2.5rem;
  }
  .page-faq .page-heading {
    font-size: 1.5rem;
  }
  .page-faq .page-desc {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
  }
  .page-faq .faq-section__title {
    padding: 0.8rem 1rem 0.6rem;
    font-size: 1rem;
  }
  .page-faq .faq-section__body {
    padding: 0.15rem 0.15rem 0.4rem;
  }
  .page-faq .faq-item__q {
    padding: 0.8rem 0.8rem 0.8rem 1rem;
    font-size: 0.95rem;
    gap: 0.4rem;
  }
  .page-faq .faq-item__a {
    padding: 0 1rem 0 2.6rem;
    font-size: 0.9rem;
  }
  .page-faq .faq-item[open] .faq-item__a {
    padding: 0.4rem 1rem 0.9rem 2.6rem;
  }
  .page-faq .faq-item__icon {
    width: 1.4rem;
    height: 1.4rem;
    font-size: 0.7rem;
  }
  .page-faq .faq-section__body--with-image {
    flex-direction: column;
  }
  .page-faq .faq-section__image-wrap {
    align-self: center;
    padding: 0.25rem 0 0.75rem;
  }
  .page-faq .faq-section__image {
    width: 80px;
    height: 80px;
  }
  .page-faq .faq-section__image[alt*="平板"] {
    width: 120px;
    height: 120px;
  }
  .page-faq .breadcrumb {
    font-size: 0.75rem;
    margin-bottom: 0.8rem;
  }
  .page-faq .faq-contact-list li {
    font-size: 0.9rem;
  }
}

/* ===== 桌面增强 ===== */
@media (min-width: 768px) {
  .page-faq {
    padding: 2.5rem 2rem 4rem;
  }
  .page-faq .faq-section__title {
    padding: 1.2rem 1.5rem 0.8rem;
  }
  .page-faq .faq-item__q {
    padding: 1.1rem 1.5rem 1.1rem 1.75rem;
  }
  .page-faq .faq-item__a {
    padding: 0 1.75rem 0 3.6rem;
  }
  .page-faq .faq-item[open] .faq-item__a {
    padding: 0.6rem 1.75rem 1.2rem 3.6rem;
  }
  .page-faq .faq-section__image-wrap {
    padding: 0.5rem 1rem 0.5rem 0;
  }
}

/* ===== 宽屏内容约束 ===== */
@media (min-width: 1024px) {
  .page-faq .faq-section__body--with-image {
    flex-wrap: nowrap;
  }
  .page-faq .faq-section__image-wrap {
    min-width: 120px;
  }
}

/* ===== 高对比度 /  prefers-contrast ===== */
@media (prefers-contrast: high) {
  .page-faq {
    --faq-border-color: var(--color-neutral-dark);
  }
  .page-faq .faq-section {
    border-width: 2px;
  }
  .page-faq .faq-item__q::after {
    opacity: 1;
  }
  .page-faq .faq-item__icon {
    background: var(--color-primary-variant);
  }
  .page-faq .faq-item[open] .faq-item__icon {
    background: var(--color-accent-variant);
  }
}

/* ===== 打印样式 ===== */
@media print {
  .page-faq {
    background: #fff;
    padding: 0.5in;
  }
  .page-faq .faq-section {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }
  .page-faq .faq-item__a {
    max-height: none;
    opacity: 1;
    padding: 0.4rem 1.25rem 0.8rem 3.2rem;
  }
  .page-faq .faq-item[open] .faq-item__a {
    padding: 0.4rem 1.25rem 0.8rem 3.2rem;
  }
  .page-faq .faq-item__q::after {
    display: none;
  }
  .page-faq .faq-item__q {
    cursor: default;
  }
  .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
  }
  .page-faq .faq-section__image-wrap {
    display: none;
  }
}

.page-faq {
  --section-marker: transparent;
}