/* ===== page-faq 专属样式 ===== */
.page-faq {
  --faq-bg-light: #F0F5FF;
  --faq-bg-card: #FFFFFF;
  --faq-border-light: #D6E4FF;
  --faq-text-muted: #555555;
  --faq-ring-color: var(--color-primary, #0055FF);
  --faq-accent-ring: var(--color-accent, #FF6B35);
  --faq-radius: 12px;
  --faq-gap: 1.5rem;

  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: var(--space-lg, 1.25rem) var(--space-md, 1rem) var(--space-2xl, 3rem);
  background: var(--color-bg, #FFFFFF);
  color: var(--color-text, #1A1A1A);
  font-family: var(--font-body, 'Inter', 'Noto Sans SC', sans-serif);
  line-height: var(--lh-body, 1.6);
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-small, 0.875rem);
  color: var(--color-text-secondary, #666);
  margin-bottom: var(--space-lg, 1.25rem);
  padding: 0;
  list-style: none;
}

.page-faq .breadcrumb-link {
  color: var(--color-primary, #0055FF);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s);
}

.page-faq .breadcrumb-link:hover,
.page-faq .breadcrumb-link:focus-visible {
  color: var(--color-primary-dark, #0033AA);
  text-decoration: underline;
}

.page-faq .breadcrumb-separator {
  color: var(--color-text-secondary, #666);
  user-select: none;
}

.page-faq .breadcrumb-item {
  color: var(--color-text-secondary, #666);
  font-weight: 600;
}

/* Hero 区 */
.page-faq .faq-hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--faq-gap);
  margin-bottom: var(--space-xl, 2rem);
  padding-bottom: var(--space-lg, 1.25rem);
  border-bottom: 2px solid var(--faq-border-light);
}

.page-faq .faq-hero-text {
  flex: 1 1 280px;
}

.page-faq .faq-hero-title {
  font-family: var(--font-heading, 'Inter', 'Noto Sans SC', sans-serif);
  font-weight: 700;
  font-style: italic;
  font-size: var(--fs-h2, clamp(1.5rem, 3.5vw, 2.5rem));
  line-height: var(--lh-heading, 1.15);
  color: var(--color-text, #1A1A1A);
  margin: 0 0 0.25rem;
}

.page-faq .faq-hero-subtitle {
  font-size: var(--fs-body, 1rem);
  color: var(--color-text-secondary, #666);
  margin: 0;
}

.page-faq .faq-hero-visual {
  flex: 0 0 auto;
  width: 180px;
}

.page-faq .faq-hero-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md, 8px);
  object-fit: cover;
}

/* 搜索框 */
.page-faq .faq-search-wrap {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin-top: var(--space-sm, 0.5rem);
}

.page-faq .faq-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary, #666);
  pointer-events: none;
  transition: color var(--transition-fast, 0.2s);
}

.page-faq .faq-search-input {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  font-family: var(--font-body, 'Inter', 'Noto Sans SC', sans-serif);
  font-size: var(--fs-body, 1rem);
  line-height: 1.5;
  color: var(--color-text, #1A1A1A);
  background: var(--faq-bg-light);
  border: 2px solid transparent;
  border-radius: var(--faq-radius);
  outline: none;
  transition: border-color var(--transition-fast, 0.2s), box-shadow var(--transition-fast, 0.2s);
  -webkit-appearance: none;
  appearance: none;
}

.page-faq .faq-search-input::placeholder {
  color: var(--faq-text-muted);
}

.page-faq .faq-search-input:focus {
  border-color: var(--faq-ring-color);
  box-shadow: 0 0 0 3px rgba(0, 85, 255, 0.15);
  background: var(--faq-bg-card);
}

.page-faq .faq-search-input:focus ~ .faq-search-icon {
  color: var(--faq-ring-color);
}

/* 常见问题区域标题 */
.page-faq .faq-section {
  margin-bottom: var(--space-2xl, 3rem);
}

.page-faq .faq-section-title {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm, 0.5rem);
  font-family: var(--font-heading, 'Inter', 'Noto Sans SC', sans-serif);
  font-weight: 700;
  font-style: italic;
  font-size: var(--fs-h2, clamp(1.5rem, 3.5vw, 2.5rem));
  line-height: var(--lh-heading, 1.15);
  color: var(--color-text, #1A1A1A);
  margin: 0 0 var(--space-lg, 1.25rem);
}

.page-faq .section-number {
  font-size: 0.7em;
  font-weight: 700;
  font-style: normal;
  color: var(--faq-ring-color);
  opacity: 0.5;
  letter-spacing: 0.05em;
}

/* 两栏布局 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}

/* 问题列表 */
.page-faq .faq-questions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: var(--faq-bg-light);
  padding: var(--space-md, 1rem);
  border-radius: var(--faq-radius);
  border: 1px solid var(--faq-border-light);
}

.page-faq .faq-q-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 0.5rem);
  padding: 0.75rem 1rem;
  background: transparent;
  border-radius: var(--radius-md, 8px);
  text-decoration: none;
  color: var(--color-text, #1A1A1A);
  font-weight: 500;
  font-size: var(--fs-body, 1rem);
  transition: background var(--transition-fast, 0.2s), color var(--transition-fast, 0.2s), box-shadow var(--transition-fast, 0.2s);
  outline: none;
}

.page-faq .faq-q-link:hover {
  background: var(--faq-bg-card);
  color: var(--faq-ring-color);
}

.page-faq .faq-q-link:focus-visible {
  outline: 2px solid var(--faq-ring-color);
  outline-offset: 2px;
}

/* 当前选中的问题（:target 高亮） */
.page-faq .faq-q-link:target,
.page-faq .faq-q-link[aria-selected="true"] {
  background: var(--faq-bg-card);
  color: var(--faq-ring-color);
  font-weight: 600;
  box-shadow: 0 1px 4px rgba(0, 85, 255, 0.12);
  border-left: 4px solid var(--faq-ring-color);
}

/* 编号圆 */
.page-faq .faq-q-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--faq-ring-color);
  color: #fff;
  font-weight: 700;
  font-size: var(--fs-small, 0.875rem);
  font-style: normal;
  transition: background var(--transition-fast, 0.2s);
}

.page-faq .faq-q-link:hover .faq-q-num {
  background: var(--color-primary-dark, #0033AA);
}

.page-faq .faq-q-link:target .faq-q-num,
.page-faq .faq-q-link[aria-selected="true"] .faq-q-num {
  background: var(--faq-accent-ring);
}

.page-faq .faq-q-text {
  flex: 1;
  line-height: 1.4;
}

/* 答案区域 */
.page-faq .faq-answers {
  position: relative;
  background: var(--faq-bg-card);
  border-radius: var(--faq-radius);
  border: 1px solid var(--faq-border-light);
  min-height: 200px;
  padding: var(--space-lg, 1.25rem);
}

.page-faq .faq-answer-item {
  display: none;
  animation: faqFadeIn 0.25s ease;
}

.page-faq .faq-answer-item:target {
  display: block;
}

/* 默认提示：没有:target时显示 */
.page-faq .faq-default {
  display: block;
}

/* 当有任意:target时隐藏默认提示 */
.page-faq .faq-answers:has(#faq-1:target) .faq-default,
.page-faq .faq-answers:has(#faq-2:target) .faq-default,
.page-faq .faq-answers:has(#faq-3:target) .faq-default,
.page-faq .faq-answers:has(#faq-4:target) .faq-default,
.page-faq .faq-answers:has(#faq-5:target) .faq-default,
.page-faq .faq-answers:has(#faq-6:target) .faq-default,
.page-faq .faq-answers:has(#faq-7:target) .faq-default,
.page-faq .faq-answers:has(#faq-8:target) .faq-default {
  display: none;
}

@keyframes faqFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-answer-heading {
  font-family: var(--font-heading, 'Inter', 'Noto Sans SC', sans-serif);
  font-weight: 700;
  font-size: var(--fs-h3, clamp(1.1rem, 2vw, 1.5rem));
  line-height: var(--lh-heading, 1.15);
  color: var(--color-text, #1A1A1A);
  margin: 0 0 var(--space-sm, 0.5rem);
}

.page-faq .faq-answer-item p {
  margin: 0 0 var(--space-sm, 0.5rem);
  color: var(--color-text, #1A1A1A);
  font-size: var(--fs-body, 1rem);
}

.page-faq .faq-answer-prompt {
  color: var(--faq-text-muted);
  font-style: italic;
}

.page-faq .faq-contact-link {
  color: var(--faq-ring-color);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast, 0.2s);
}

.page-faq .faq-contact-link:hover,
.page-faq .faq-contact-link:focus-visible {
  color: var(--color-primary-dark, #0033AA);
}

/* 联系客服区域 */
.page-faq .faq-contact-section {
  margin-bottom: var(--space-2xl, 3rem);
  background: var(--faq-bg-light);
  border-radius: var(--faq-radius);
  border: 1px solid var(--faq-border-light);
  padding: var(--space-xl, 2rem) var(--space-lg, 1.25rem);
}

.page-faq .faq-contact-inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--faq-gap);
  align-items: flex-start;
}

.page-faq .faq-contact-info {
  flex: 1 1 300px;
}

.page-faq .faq-contact-title {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm, 0.5rem);
  font-family: var(--font-heading, 'Inter', 'Noto Sans SC', sans-serif);
  font-weight: 700;
  font-style: italic;
  font-size: var(--fs-h2, clamp(1.5rem, 3.5vw, 2.5rem));
  line-height: var(--lh-heading, 1.15);
  color: var(--color-text, #1A1A1A);
  margin: 0 0 var(--space-md, 1rem);
}

.page-faq .faq-contact-desc {
  color: var(--color-text-secondary, #666);
  font-size: var(--fs-body, 1rem);
  margin: 0 0 var(--space-lg, 1.25rem);
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0 0 var(--space-md, 1rem);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-faq .faq-contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 0.5rem);
  font-size: var(--fs-body, 1rem);
  color: var(--color-text, #1A1A1A);
}

.page-faq .faq-contact-icon {
  flex-shrink: 0;
  color: var(--faq-ring-color);
}

.page-faq .faq-contact-note {
  font-size: var(--fs-small, 0.875rem);
  color: var(--faq-text-muted);
  margin: 0 0 var(--space-lg, 1.25rem);
  padding: var(--space-sm, 0.5rem) var(--space-md, 1rem);
  background: rgba(0, 85, 255, 0.06);
  border-left: 3px solid var(--faq-ring-color);
  border-radius: var(--radius-sm, 4px);
}

.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm, 0.5rem);
}

.page-faq .faq-contact-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.5rem;
  font-family: var(--font-nav, 'Inter', sans-serif);
  font-weight: 600;
  font-size: var(--fs-small, 0.875rem);
  letter-spacing: 0.3px;
  border-radius: var(--radius-sm, 4px);
  text-decoration: none;
  transition: background var(--transition-fast, 0.2s), color var(--transition-fast, 0.2s), box-shadow var(--transition-fast, 0.2s);
  cursor: pointer;
  border: 2px solid transparent;
}

.page-faq .faq-contact-actions .btn-primary {
  background: var(--color-accent, #FF6B35);
  color: var(--color-text-on-accent, #FFFFFF);
  border-color: var(--color-accent, #FF6B35);
}

.page-faq .faq-contact-actions .btn-primary:hover,
.page-faq .faq-contact-actions .btn-primary:focus-visible {
  background: var(--color-accent-light, #FF9A5E);
  border-color: var(--color-accent-light, #FF9A5E);
  box-shadow: 0 2px 12px rgba(255, 107, 53, 0.3);
}

.page-faq .faq-contact-actions .btn-secondary {
  background: transparent;
  color: var(--faq-ring-color);
  border-color: var(--faq-ring-color);
}

.page-faq .faq-contact-actions .btn-secondary:hover,
.page-faq .faq-contact-actions .btn-secondary:focus-visible {
  background: var(--faq-bg-light);
  color: var(--color-primary-dark, #0033AA);
  border-color: var(--color-primary-dark, #0033AA);
}

.page-faq .faq-contact-visual {
  flex: 0 0 auto;
  width: 200px;
  align-self: center;
}

.page-faq .faq-contact-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md, 8px);
  object-fit: contain;
}

/* 附加帮助链接 */
.page-faq .faq-links-section {
  text-align: center;
  padding: var(--space-lg, 1.25rem) 0;
  border-top: 1px solid var(--color-border, #E0E0E0);
}

.page-faq .faq-links-text {
  font-size: var(--fs-body, 1rem);
  color: var(--color-text-secondary, #666);
  margin: 0;
}

.page-faq .faq-links-text a {
  color: var(--faq-ring-color);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 500;
  transition: color var(--transition-fast, 0.2s);
}

.page-faq .faq-links-text a:hover,
.page-faq .faq-links-text a:focus-visible {
  color: var(--color-primary-dark, #0033AA);
}

/* ===== 响应式：桌面 >= 768px ===== */
@media (min-width: 768px) {
  .page-faq {
    padding: var(--space-xl, 2rem) var(--space-lg, 1.25rem) var(--space-2xl, 3rem);
  }

  .page-faq .faq-hero {
    flex-wrap: nowrap;
  }

  .page-faq .faq-hero-visual {
    width: 260px;
  }

  .page-faq .faq-search-wrap {
    max-width: 420px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 1fr 1.6fr;
    align-items: start;
  }

  .page-faq .faq-questions {
    position: sticky;
    top: calc(var(--header-height, 64px) + var(--space-md, 1rem));
    max-height: 70vh;
    overflow-y: auto;
  }

  .page-faq .faq-answers {
    min-height: 300px;
    padding: var(--space-xl, 2rem);
  }

  .page-faq .faq-contact-section {
    padding: var(--space-xl, 2rem) var(--space-lg, 1.25rem);
  }

  .page-faq .faq-contact-inner {
    flex-wrap: nowrap;
  }

  .page-faq .faq-contact-visual {
    width: 240px;
  }
}

/* ===== 大屏桌面 >= 1024px ===== */
@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 1fr 1.8fr;
  }

  .page-faq .faq-hero-visual {
    width: 320px;
  }

  .page-faq .faq-contact-visual {
    width: 280px;
  }
}

/* ===== 移动端适配：小屏细节 ===== */
@media (max-width: 479px) {
  .page-faq .faq-hero-title {
    font-size: var(--fs-h3, clamp(1.1rem, 2vw, 1.5rem));
  }

  .page-faq .faq-section-title {
    font-size: var(--fs-h3, clamp(1.1rem, 2vw, 1.5rem));
  }

  .page-faq .faq-contact-title {
    font-size: var(--fs-h3, clamp(1.1rem, 2vw, 1.5rem));
  }

  .page-faq .faq-q-link {
    padding: 0.6rem 0.75rem;
    font-size: var(--fs-small, 0.875rem);
  }

  .page-faq .faq-answers {
    padding: var(--space-md, 1rem);
  }

  .page-faq .faq-contact-section {
    padding: var(--space-lg, 1.25rem) var(--space-md, 1rem);
  }

  .page-faq .faq-contact-visual {
    width: 140px;
    margin: 0 auto;
  }

  .page-faq .faq-search-input {
    font-size: var(--fs-small, 0.875rem);
  }

  .page-faq .breadcrumb {
    font-size: var(--fs-tiny, 0.75rem);
  }
}