/* ===== 页面专属样式：.page-faq ===== */
.page-faq {
  --faq-bg-deep: #1A1A1A;
  --faq-bg-card: #242424;
  --faq-bg-hover: #2E2E2E;
  --faq-gold: #D4AF37;
  --faq-gold-dim: rgba(212, 175, 55, 0.25);
  --faq-red: #C41E3A;
  --faq-text-primary: #F0EDE6;
  --faq-text-secondary: #B8B4AC;
  --faq-text-muted: #7A7670;
  --faq-border-light: rgba(212, 175, 55, 0.18);
  --faq-radius: 0;
  --faq-transition: 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  display: block;
  max-width: 1120px;
  margin: 0 auto;
  padding: 2.4rem 1.2rem 3.2rem;
  background: var(--faq-bg-deep);
  color: var(--faq-text-primary);
  font-family: 'Noto Sans SC', sans-serif;
  line-height: 1.6;
}

/* ===== 头部区域 ===== */
.faq-hero {
  margin-bottom: 2.8rem;
  border-bottom: 1px solid var(--faq-border-light);
  padding-bottom: 2rem;
  position: relative;
}

.faq-hero-decor {
  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
}

.faq-hero-icon {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  opacity: 0.9;
}

.faq-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--faq-text-muted);
  margin-bottom: 0.8rem;
  letter-spacing: 0.03em;
}

.faq-breadcrumb a {
  color: var(--faq-gold);
  text-decoration: none;
  transition: color var(--faq-transition);
}

.faq-breadcrumb a:hover,
.faq-breadcrumb a:focus-visible {
  color: var(--faq-red);
  text-decoration: underline;
}

.faq-breadcrumb-sep {
  color: var(--faq-text-muted);
  user-select: none;
}

.faq-heading {
  font-family: 'Noto Serif SC', serif;
  font-weight: 700;
  font-size: 2.2rem;
  letter-spacing: 0.06em;
  color: var(--faq-gold);
  margin: 0 0 0.4rem;
  line-height: 1.2;
  text-align: center;
}

.faq-subtitle {
  text-align: center;
  color: var(--faq-text-secondary);
  font-size: 0.95rem;
  margin: 0 0 1.6rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 快速导航 ===== */
.faq-toc {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 0.8rem;
  margin-top: 1.2rem;
}

.faq-toc-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--faq-text-secondary);
  text-decoration: none;
  padding: 0.3rem 0.6rem;
  border: 1px solid transparent;
  transition: all var(--faq-transition);
  letter-spacing: 0.02em;
}

.faq-toc-mark {
  color: var(--faq-red);
  font-size: 0.6rem;
  transition: transform var(--faq-transition);
}

.faq-toc-link:hover,
.faq-toc-link:focus-visible {
  color: var(--faq-gold);
  border-color: var(--faq-border-light);
  background: rgba(212, 175, 55, 0.06);
}

.faq-toc-link:hover .faq-toc-mark,
.faq-toc-link:focus-visible .faq-toc-mark {
  transform: translateX(2px);
}

/* ===== 手风琴容器 ===== */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--faq-border-light);
  border: 1px solid var(--faq-border-light);
  position: relative;
}

/* ===== 每个分类面板 ===== */
.faq-category {
  background: var(--faq-bg-card);
  position: relative;
}

/* 装饰底纹：宁夏地标剪影 */
.faq-category::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('{zhanqunpic:h:600w:800}');
  background-size: 360px auto;
  background-repeat: no-repeat;
  background-position: right bottom;
  opacity: 0.035;
  pointer-events: none;
  z-index: 0;
}

.faq-panel {
  position: relative;
  z-index: 1;
}

/* 分类标题（summary） */
.faq-panel-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.1rem 1.4rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--faq-transition);
  border-left: 3px solid transparent;
}

.faq-panel-header::-webkit-details-marker {
  display: none;
}

.faq-panel-header:hover,
.faq-panel-header:focus-visible {
  background: var(--faq-bg-hover);
}

.faq-panel[open] .faq-panel-header {
  border-left-color: var(--faq-red);
  background: rgba(196, 30, 58, 0.06);
}

/* 红色三角形标记 */
.faq-panel-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 0;
  height: 0;
  border-left: 7px solid var(--faq-red);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  flex-shrink: 0;
  transition: transform var(--faq-transition);
}

.faq-panel[open] .faq-panel-mark {
  transform: rotate(90deg);
}

.faq-panel-title {
  font-family: 'Noto Serif SC', serif;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  color: var(--faq-text-primary);
  flex: 1;
}

.faq-panel-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--faq-text-muted);
  letter-spacing: 0.04em;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--faq-border-light);
}

/* ===== 面板内容区 ===== */
.faq-panel-body {
  padding: 0.2rem 1.4rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

/* ===== 单个问题项 ===== */
.faq-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item-details {
  display: block;
}

.faq-item-q {
  display: block;
  padding: 0.85rem 0.6rem 0.85rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--faq-text-primary);
  cursor: pointer;
  list-style: none;
  position: relative;
  transition: color var(--faq-transition), background var(--faq-transition);
  border-left: 2px solid transparent;
}

.faq-item-q::-webkit-details-marker {
  display: none;
}

.faq-item-q::before {
  content: '?';
  position: absolute;
  left: 0;
  top: 0.85rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--faq-gold);
  opacity: 0.6;
  transition: opacity var(--faq-transition);
}

.faq-item-q:hover,
.faq-item-q:focus-visible {
  background: rgba(212, 175, 55, 0.05);
  color: var(--faq-gold);
  border-left-color: var(--faq-gold-dim);
}

.faq-item-q:hover::before {
  opacity: 1;
}

.faq-item-details[open] .faq-item-q {
  color: var(--faq-gold);
  border-left-color: var(--faq-gold);
}

.faq-item-details[open] .faq-item-q::before {
  content: '›';
  font-size: 1rem;
  opacity: 1;
  color: var(--faq-red);
}

/* ===== 答案内容 ===== */
.faq-item-a {
  padding: 0.2rem 0.6rem 0.8rem 1.2rem;
  font-size: 0.9rem;
  color: var(--faq-text-secondary);
  line-height: 1.7;
}

.faq-item-a p {
  margin: 0 0 0.5rem;
}

.faq-item-a p:last-child {
  margin-bottom: 0;
}

.faq-item-a a {
  color: var(--faq-gold);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--faq-transition);
}

.faq-item-a a:hover,
.faq-item-a a:focus-visible {
  color: var(--faq-red);
}

/* ===== 步骤列表（等宽字体） ===== */
.faq-steps {
  list-style: none;
  padding: 0;
  margin: 0.6rem 0 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.faq-step {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: var(--faq-text-primary);
}

.faq-step-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--faq-gold);
  letter-spacing: 0.05em;
  min-width: 2rem;
  text-align: right;
}

/* 步骤图 */
.faq-step-fig {
  margin: 0.8rem 0 0.2rem;
}

.faq-step-img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border: 1px solid var(--faq-border-light);
  background: rgba(0, 0, 0, 0.2);
}

/* ===== 底部CTA ===== */
.faq-footer-cta {
  margin-top: 2.4rem;
  text-align: center;
  padding: 1.6rem 1.2rem;
  border-top: 1px solid var(--faq-border-light);
}

.faq-cta-text {
  font-size: 1rem;
  color: var(--faq-text-secondary);
  margin: 0 0 0.8rem;
  font-family: 'Noto Serif SC', serif;
  letter-spacing: 0.04em;
}

.faq-cta-btn {
  display: inline-block;
  background: var(--faq-red);
  color: #FFFFFF;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: 'Noto Sans SC', sans-serif;
  padding: 0.7rem 2rem;
  text-decoration: none;
  border: none;
  letter-spacing: 0.04em;
  transition: background var(--faq-transition), transform var(--faq-transition);
}

.faq-cta-btn:hover,
.faq-cta-btn:focus-visible {
  background: #A0182E;
  transform: translateY(-1px);
}

/* ===== 折叠动画：平滑展开/收起 ===== */
.faq-panel-body,
.faq-item-a {
  overflow: hidden;
}

.faq-panel:not([open]) .faq-panel-body {
  display: none;
}

.faq-item-details:not([open]) .faq-item-a {
  display: none;
}

/* ===== 移动端优先：窄屏优化 ===== */
@media (max-width: 599px) {
  .page-faq {
    padding: 1.2rem 0.8rem 2rem;
  }

  .faq-heading {
    font-size: 1.6rem;
  }

  .faq-subtitle {
    font-size: 0.85rem;
    padding: 0 0.4rem;
  }

  .faq-toc {
    gap: 0.3rem;
  }

  .faq-toc-link {
    font-size: 0.78rem;
    padding: 0.25rem 0.5rem;
  }

  .faq-panel-header {
    padding: 0.9rem 1rem;
  }

  .faq-panel-title {
    font-size: 1rem;
  }

  .faq-panel-count {
    font-size: 0.65rem;
    padding: 0.1rem 0.4rem;
  }

  .faq-panel-body {
    padding: 0.2rem 1rem 1rem;
  }

  .faq-item-q {
    font-size: 0.88rem;
    padding: 0.7rem 0.4rem 0.7rem 1rem;
  }

  .faq-item-a {
    font-size: 0.84rem;
    padding: 0.2rem 0.4rem 0.6rem 1rem;
  }

  .faq-step-num {
    font-size: 0.7rem;
    min-width: 1.6rem;
  }

  .faq-hero-icon {
    width: 140px;
    height: auto;
  }

  .faq-footer-cta {
    padding: 1.2rem 0.8rem;
  }

  .faq-cta-btn {
    padding: 0.6rem 1.6rem;
    font-size: 0.9rem;
  }

  /* 地标装饰在窄屏上减弱 */
  .faq-category::before {
    opacity: 0.015;
    background-size: 200px auto;
  }
}

/* ===== 桌面端增强 ===== */
@media (min-width: 600px) {
  .faq-hero-decor {
    justify-content: flex-start;
  }

  .faq-heading {
    font-size: 2.6rem;
    text-align: left;
  }

  .faq-subtitle {
    text-align: left;
    margin-left: 0;
    margin-right: 0;
  }

  .faq-toc {
    justify-content: flex-start;
  }

  .faq-panel-header {
    padding: 1.2rem 1.8rem;
  }

  .faq-panel-body {
    padding: 0.4rem 1.8rem 1.6rem;
  }

  .faq-item-q {
    font-size: 1rem;
    padding: 0.9rem 0.8rem 0.9rem 1.6rem;
  }

  .faq-item-q::before {
    left: 0.2rem;
    top: 0.9rem;
  }

  .faq-item-a {
    padding: 0.3rem 0.8rem 0.9rem 1.6rem;
    font-size: 0.92rem;
  }

  .faq-steps {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.2rem 1.2rem;
  }

  .faq-step {
    flex: 1 0 180px;
  }

  .faq-step-fig {
    margin-top: 0.6rem;
  }

  .faq-category::before {
    background-size: 420px auto;
    opacity: 0.045;
  }
}

/* ===== 宽桌面优化 ===== */
@media (min-width: 1024px) {
  .page-faq {
    padding: 3.2rem 2rem 4rem;
  }

  .faq-heading {
    font-size: 3rem;
  }

  .faq-panel-header {
    padding: 1.4rem 2rem;
  }

  .faq-panel-title {
    font-size: 1.25rem;
  }

  .faq-panel-body {
    padding: 0.6rem 2rem 1.8rem;
  }

  .faq-category::before {
    background-size: 500px auto;
  }
}

/* ===== 高对比度 / 焦点样式 ===== */
.faq-toc-link:focus-visible,
.faq-panel-header:focus-visible,
.faq-item-q:focus-visible,
.faq-cta-btn:focus-visible {
  outline: 2px solid var(--faq-gold);
  outline-offset: 2px;
}

/* ===== 打印支持 ===== */
@media print {
  .page-faq {
    background: #FFFFFF;
    color: #1A1A1A;
    padding: 0;
    max-width: 100%;
  }

  .faq-panel-header {
    border-left-color: #C41E3A !important;
    background: transparent !important;
  }

  .faq-panel[open] .faq-panel-header {
    background: transparent !important;
  }

  .faq-toc,
  .faq-footer-cta,
  .faq-hero-decor {
    display: none;
  }
}