/* ===== 页面作用域：.page-faq ===== */
.page-faq {
  --faq-hero-grad: linear-gradient(135deg, #0F1C3D 0%, #1A2D4A 100%);
  --faq-border-color: rgba(255, 107, 53, 0.25);
  --faq-active-bg: rgba(255, 107, 53, 0.08);
  --faq-hover-bg: rgba(255, 255, 255, 0.03);
  --faq-answer-bg: rgba(255, 255, 255, 0.02);
  --faq-nav-width: 200px;
  --faq-radius: 10px;

  display: block;
  width: 100%;
  background: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
}

/* ---------- 首屏 Hero ---------- */
.page-faq .faq-hero {
  background: var(--faq-hero-grad);
  padding: var(--space-xl) 0 var(--space-lg);
  border-bottom: 2px solid var(--faq-border-color);
  position: relative;
  overflow: hidden;
}
.page-faq .faq-hero::after {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.page-faq .faq-hero-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero-text {
  flex: 1 1 100%;
  text-align: center;
}
.page-faq .faq-hero-image {
  flex: 0 0 auto;
  width: 100%;
  max-width: 360px;
}
.page-faq .faq-hero-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  object-fit: cover;
}

/* 面包屑 */
.page-faq .faq-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  justify-content: center;
}
.page-faq .faq-breadcrumb a {
  color: var(--primary-orange);
  text-decoration: none;
  transition: color 0.2s;
}
.page-faq .faq-breadcrumb a:hover {
  color: var(--accent-yellow);
}
.page-faq .faq-breadcrumb-sep {
  color: var(--text-secondary);
  opacity: 0.5;
}

/* 标题与描述 */
.page-faq .faq-hero-title {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  margin: 0 0 var(--space-sm);
  letter-spacing: -0.02em;
  background: var(--highlight-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-faq .faq-hero-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto var(--space-md);
  line-height: 1.5;
}

/* 搜索框 */
.page-faq .faq-search-wrap {
  position: relative;
  max-width: 480px;
  margin: 0 auto;
}
.page-faq .faq-search-input {
  width: 100%;
  padding: 0.7rem 1rem 0.7rem 2.8rem;
  border: 1.5px solid var(--faq-border-color);
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-body);
  transition: border-color 0.3s, box-shadow 0.3s;
  outline: none;
  box-sizing: border-box;
}
.page-faq .faq-search-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}
.page-faq .faq-search-input:focus {
  border-color: var(--primary-orange);
  box-shadow: 0 0 0 3px var(--border-glow);
}
.page-faq .faq-search-icon {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  pointer-events: none;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  padding: var(--space-xl) 0 var(--space-2xl);
}
.page-faq .faq-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

/* ---------- 左侧导航 (移动端水平滚动) ---------- */
.page-faq .faq-nav {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  border-bottom: 1px solid var(--faq-border-color);
  padding-bottom: var(--space-sm);
  margin-bottom: var(--space-sm);
}
.page-faq .faq-nav::-webkit-scrollbar {
  display: none;
}
.page-faq .faq-nav-list {
  display: flex;
  gap: var(--space-sm);
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: max-content;
}
.page-faq .faq-nav-link {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.3s, color 0.3s, box-shadow 0.3s;
  border: 1px solid transparent;
}
.page-faq .faq-nav-link:hover {
  background: rgba(255, 107, 53, 0.12);
  color: var(--primary-orange);
  border-color: var(--faq-border-color);
}
.page-faq .faq-nav-link:focus-visible {
  outline: 2px solid var(--primary-orange);
  outline-offset: 2px;
}
.page-faq .faq-nav-icon {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: 0.7rem;
  color: var(--primary-orange);
  opacity: 0.7;
}

/* ---------- 内容区 ---------- */
.page-faq .faq-content {
  flex: 1;
  min-width: 0;
}

/* ---------- 每个分类 Section ---------- */
.page-faq .faq-section {
  margin-bottom: var(--space-2xl);
  scroll-margin-top: calc(var(--header-h) + var(--space-lg));
}
.page-faq .faq-section:last-of-type {
  margin-bottom: var(--space-xl);
}

/* 分类标题 */
.page-faq .section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  margin: 0 0 var(--space-md);
  color: var(--text-primary);
  letter-spacing: -0.01em;
  position: relative;
}
.page-faq .section-title-deco {
  display: inline-block;
  width: 4px;
  height: 1.6em;
  background: var(--highlight-grad);
  border-radius: 2px;
  flex-shrink: 0;
  transform: skewX(-8deg);
}

/* 分类配图 */
.page-faq .faq-section-img {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: var(--faq-radius);
  margin: 0 0 var(--space-md);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  object-fit: cover;
  border: 1px solid var(--faq-border-color);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* 每个条目 */
.page-faq .faq-item {
  border: 1px solid var(--faq-border-color);
  border-radius: var(--faq-radius);
  background: rgba(255, 255, 255, 0.02);
  transition: background 0.3s, border-color 0.3s;
  overflow: hidden;
}
.page-faq .faq-item:has(.faq-toggle:checked) {
  background: var(--faq-active-bg);
  border-color: rgba(255, 107, 53, 0.4);
}

/* 隐藏 checkbox */
.page-faq .faq-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* 问题标签（可点击区域） */
.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
  transition: background 0.2s, color 0.2s;
  position: relative;
}
.page-faq .faq-question::after {
  content: '';
  margin-left: auto;
  width: 10px;
  height: 10px;
  border-right: 2.5px solid var(--primary-orange);
  border-bottom: 2.5px solid var(--primary-orange);
  transform: rotate(45deg);
  transition: transform 0.3s;
  flex-shrink: 0;
  opacity: 0.7;
}
.page-faq .faq-item:has(.faq-toggle:checked) .faq-question::after {
  transform: rotate(-135deg);
  opacity: 1;
}
.page-faq .faq-question:hover {
  background: var(--faq-hover-bg);
  color: var(--primary-orange);
}
.page-faq .faq-question:focus-visible {
  outline: 2px solid var(--primary-orange);
  outline-offset: -2px;
}

/* 答案区域 */
.page-faq .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 1.2rem;
  background: var(--faq-answer-bg);
}
.page-faq .faq-toggle:checked ~ .faq-answer {
  max-height: 300px;
  padding: 0 1.2rem 1.2rem;
}
.page-faq .faq-answer p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}
.page-faq .faq-answer a {
  color: var(--primary-orange);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}
.page-faq .faq-answer a:hover {
  color: var(--accent-yellow);
}

/* ---------- 底部引导 ---------- */
.page-faq .faq-footer-note {
  text-align: center;
  padding: var(--space-lg) 0 0;
  border-top: 1px solid var(--faq-border-color);
  margin-top: var(--space-lg);
}
.page-faq .faq-footer-note p {
  color: var(--text-secondary);
  font-size: 1rem;
}
.page-faq .faq-footer-note a {
  color: var(--primary-orange);
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s;
}
.page-faq .faq-footer-note a:hover {
  color: var(--accent-yellow);
  text-decoration: underline;
}

/* ---------- 滚动渐入 (data-reveal) ---------- */
.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.page-faq [data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式 ===== */
/* ≥ 768px */
@media (min-width: 768px) {
  .page-faq .faq-hero-inner {
    flex-direction: row;
    text-align: left;
    align-items: center;
  }
  .page-faq .faq-hero-text {
    text-align: left;
  }
  .page-faq .faq-hero-desc {
    margin: 0 0 var(--space-md);
  }
  .page-faq .faq-search-wrap {
    margin: 0;
  }
  .page-faq .faq-hero-image {
    max-width: 320px;
  }
  .page-faq .faq-breadcrumb {
    justify-content: flex-start;
  }
  .page-faq .faq-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--space-xl);
  }
  .page-faq .faq-nav {
    width: var(--faq-nav-width);
    flex-shrink: 0;
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
    position: sticky;
    top: calc(var(--header-h) + var(--space-md));
    overflow: visible;
  }
  .page-faq .faq-nav-list {
    flex-direction: column;
    gap: var(--space-xs);
    min-width: 0;
  }
  .page-faq .faq-nav-link {
    border-radius: var(--radius-md);
    padding: 0.6rem 1rem;
    white-space: normal;
    background: transparent;
    border: 1px solid transparent;
  }
  .page-faq .faq-nav-link:hover {
    background: rgba(255, 107, 53, 0.08);
    border-color: var(--faq-border-color);
  }
}

/* ≥ 1024px */
@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: var(--space-2xl) 0 var(--space-xl);
  }
  .page-faq .faq-hero-image {
    max-width: 360px;
  }
  .page-faq .faq-nav {
    --faq-nav-width: 220px;
  }
  .page-faq .faq-section-img {
    max-width: 440px;
  }
  .page-faq .faq-question {
    padding: 1.1rem 1.4rem;
    font-size: 1.05rem;
  }
  .page-faq .faq-toggle:checked ~ .faq-answer {
    padding: 0 1.4rem 1.4rem;
  }
}