/* ===== 页面专属：.page-faq ===== */
.page-faq {
  --faq-gold: #D4AF37;
  --faq-deep-red: #8B0000;
  --faq-dark-gray: #2F2F2F;
  --faq-bright-yellow: #FFD700;
  --faq-bg-light: #FFF8DC;
  --faq-bg-dark: #1A1A1A;
  --faq-text-light: #F5F5F5;
  --faq-text-dark: #1A1A1A;
  --faq-radius: 12px;
  --faq-shadow: 0 4px 20px rgba(0,0,0,0.08);
  --faq-transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
  background: var(--faq-bg-light);
  color: var(--faq-text-dark);
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  line-height: 1.7;
  padding: 0;
  margin: 0;
}

/* 容器 */
.page-faq .faq__container {
  max-width: var(--content-max, 980px);
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  position: relative;
}

/* 面包屑 */
.page-faq .faq__breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.6rem;
  font-size: 0.875rem;
  margin-bottom: 1.25rem;
  color: var(--faq-dark-gray);
  opacity: 0.85;
}
.page-faq .faq__breadcrumb-link {
  color: var(--faq-deep-red);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--faq-transition);
}
.page-faq .faq__breadcrumb-link:hover,
.page-faq .faq__breadcrumb-link:focus-visible {
  border-bottom-color: var(--faq-deep-red);
  outline: none;
}
.page-faq .faq__breadcrumb-sep {
  color: var(--faq-gold);
  font-weight: 700;
}
.page-faq .faq__breadcrumb-current {
  font-weight: 600;
  color: var(--faq-text-dark);
}

/* 标题区 */
.page-faq .faq__header {
  margin-bottom: 2.5rem;
  position: relative;
}
.page-faq .faq__title {
  font-family: var(--font-heading, Georgia, 'Times New Roman', serif);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--faq-text-dark);
  margin: 0 0 0.5rem;
  line-height: 1.2;
  letter-spacing: 0.02em;
  position: relative;
  display: inline-block;
}
.page-faq .faq__title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--faq-gold);
  margin-top: 0.5rem;
  border-radius: 2px;
}
.page-faq .faq__subtitle {
  font-size: 1rem;
  color: var(--faq-dark-gray);
  margin: 0.75rem 0 1.5rem;
  max-width: 640px;
  line-height: 1.6;
}

/* 搜索框（仅样式） */
.page-faq .faq__search {
  position: relative;
  max-width: 420px;
  margin-top: 1rem;
}
.page-faq .faq__search-input {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.75rem;
  border: 2px solid var(--faq-dark-gray);
  border-radius: 50px;
  background: #fff;
  font-size: 0.95rem;
  color: var(--faq-text-dark);
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  cursor: not-allowed;
  opacity: 0.85;
}
.page-faq .faq__search-input:focus {
  outline: none;
  border-color: var(--faq-gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.25);
}
.page-faq .faq__search-input::placeholder {
  color: #999;
  font-style: italic;
}
.page-faq .faq__search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--faq-dark-gray);
  width: 1.25rem;
  height: 1.25rem;
  pointer-events: none;
  opacity: 0.6;
}

/* 主体两栏布局 */
.page-faq .faq__body {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* 侧边分类导航 */
.page-faq .faq__nav {
  flex-shrink: 0;
}
.page-faq .faq__nav-card {
  background: var(--faq-bg-dark);
  border-radius: var(--faq-radius);
  padding: 1.75rem 1.5rem 2rem;
  box-shadow: var(--faq-shadow);
  text-align: center;
  border-top: 4px solid var(--faq-gold);
  position: relative;
  overflow: hidden;
}
.page-faq .faq__nav-card::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(212,175,55,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.page-faq .faq__nav-icon {
  display: block;
  margin: 0 auto 0.75rem;
  max-width: 80px;
  height: auto;
  border-radius: 50%;
  background: rgba(255,248,220,0.1);
  padding: 0.25rem;
}
.page-faq .faq__nav-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--faq-gold);
  margin-bottom: 1.25rem;
  font-weight: 600;
  opacity: 0.8;
}
.page-faq .faq__nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.page-faq .faq__nav-item {
  margin: 0;
}
.page-faq .faq__nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  color: var(--faq-text-light);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: background var(--faq-transition), transform var(--faq-transition);
}
.page-faq .faq__nav-link:hover,
.page-faq .faq__nav-link:focus-visible {
  background: rgba(212,175,55,0.18);
  transform: translateX(4px);
  outline: none;
}
.page-faq .faq__nav-link-icon {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--faq-gold);
  width: 1.8rem;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.page-faq .faq__nav-link-text {
  flex: 1;
}

/* 主问答区域 */
.page-faq .faq__main {
  flex: 1;
  min-width: 0;
}

/* 分类区块 */
.page-faq .faq__category {
  margin-bottom: 2.75rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid rgba(212,175,55,0.3);
}
.page-faq .faq__category:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}
.page-faq .faq__category-title {
  font-family: var(--font-heading, Georgia, 'Times New Roman', serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--faq-text-dark);
  margin: 0 0 0.25rem;
  line-height: 1.25;
}
.page-faq .faq__category-desc {
  font-size: 0.95rem;
  color: var(--faq-dark-gray);
  margin: 0 0 1.5rem;
  opacity: 0.8;
}

/* 折叠面板项 */
.page-faq .faq__item {
  margin-bottom: 0.75rem;
  border-radius: var(--faq-radius);
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  overflow: hidden;
  transition: box-shadow var(--faq-transition);
  border-left: 4px solid var(--faq-gold);
}
.page-faq .faq__item[open] {
  box-shadow: 0 4px 24px rgba(0,0,0,0.1);
  border-left-color: var(--faq-deep-red);
}

/* 问题样式 */
.page-faq .faq__question {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--faq-text-dark);
  cursor: pointer;
  list-style: none;
  transition: background var(--faq-transition), color var(--faq-transition);
  user-select: none;
  -webkit-user-select: none;
}
.page-faq .faq__question::-webkit-details-marker {
  display: none;
}
.page-faq .faq__question::marker {
  display: none;
  content: '';
}
.page-faq .faq__question:hover {
  background: rgba(212,175,55,0.06);
}
.page-faq .faq__question:focus-visible {
  outline: 2px solid var(--faq-gold);
  outline-offset: -2px;
  border-radius: var(--faq-radius) var(--faq-radius) 0 0;
}

/* 金色问号装饰（伪元素） */
.page-faq .faq__question-marker {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--faq-gold);
  color: var(--faq-bg-dark);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  transition: background var(--faq-transition), transform var(--faq-transition);
}
.page-faq .faq__question-marker::before {
  content: '?';
  font-family: var(--font-heading, Georgia, serif);
}
.page-faq .faq__item[open] .faq__question-marker {
  background: var(--faq-deep-red);
  color: #fff;
  transform: rotate(12deg);
}

/* 答案内容 */
.page-faq .faq__answer {
  padding: 0 1.25rem 1.25rem 3.25rem;
  font-size: 0.95rem;
  color: var(--faq-dark-gray);
  line-height: 1.7;
  animation: faqFadeIn 0.4s ease;
}
.page-faq .faq__answer p {
  margin: 0 0 0.75rem;
}
.page-faq .faq__answer p:last-child {
  margin-bottom: 0;
}
.page-faq .faq__answer-img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid rgba(0,0,0,0.06);
  margin-top: 1rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

/* 链接样式 */
.page-faq .faq__link {
  color: var(--faq-deep-red);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  transition: color var(--faq-transition), text-decoration-color var(--faq-transition);
}
.page-faq .faq__link:hover,
.page-faq .faq__link:focus-visible {
  color: var(--faq-gold);
  text-decoration-color: var(--faq-gold);
  outline: none;
}

/* 帮助提示 */
.page-faq .faq__help-note {
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  background: rgba(212,175,55,0.08);
  border-radius: var(--faq-radius);
  border-left: 4px solid var(--faq-gold);
  font-size: 0.95rem;
  color: var(--faq-dark-gray);
}
.page-faq .faq__help-note p {
  margin: 0;
}

/* 动画定义 */
@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 滚动显现支持 */
.page-faq [data-reveal="fade-up"] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.page-faq [data-reveal="fade-up"].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* 屏幕阅读器辅助 */
.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;
}

/* reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .page-faq [data-reveal="fade-up"] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-faq .faq__question:hover {
    transform: none !important;
  }
  .page-faq .faq__nav-link:hover {
    transform: none !important;
  }
}

/* ===== 移动端优先（375px 基准） ===== */
@media (min-width: 640px) {
  .page-faq .faq__container {
    padding: 2.5rem 2rem 4rem;
  }
  .page-faq .faq__title {
    font-size: 2.75rem;
  }
  .page-faq .faq__title::after {
    width: 80px;
  }
  .page-faq .faq__category-title {
    font-size: 1.8rem;
  }
  .page-faq .faq__question {
    padding: 1.1rem 1.5rem;
    font-size: 1.1rem;
  }
  .page-faq .faq__answer {
    padding-left: 3.5rem;
    padding-right: 1.5rem;
  }
}

/* 桌面端两栏布局 */
@media (min-width: 860px) {
  .page-faq .faq__container {
    padding: 3rem 2.5rem 5rem;
  }
  .page-faq .faq__body {
    flex-direction: row;
    align-items: flex-start;
    gap: 2.5rem;
  }
  .page-faq .faq__nav {
    width: 260px;
    position: sticky;
    top: 2rem;
  }
  .page-faq .faq__nav-card {
    padding: 2rem 1.5rem 2.25rem;
  }
  .page-faq .faq__nav-icon {
    max-width: 100px;
  }
  .page-faq .faq__main {
    flex: 1;
    max-width: 680px;
  }
  .page-faq .faq__title {
    font-size: 3.25rem;
  }
  .page-faq .faq__category-title {
    font-size: 2rem;
  }
  .page-faq .faq__item {
    margin-bottom: 0.875rem;
  }
  .page-faq .faq__question {
    padding: 1.2rem 1.75rem;
    font-size: 1.15rem;
  }
  .page-faq .faq__answer {
    padding: 0 1.75rem 1.5rem 4rem;
    font-size: 1rem;
  }
  .page-faq .faq__answer-img {
    max-width: 360px;
  }
}

/* 超宽屏优化 */
@media (min-width: 1200px) {
  .page-faq .faq__container {
    padding: 3.5rem 3rem 6rem;
  }
  .page-faq .faq__nav {
    width: 300px;
  }
  .page-faq .faq__main {
    max-width: 750px;
  }
  .page-faq .faq__title {
    font-size: 3.75rem;
  }
}