.page-faq {
  --faq-hero-glow: rgba(212, 175, 55, 0.15);
  --faq-nav-width: 220px;
  --faq-num-size: 2.4rem;
  --faq-item-radius: 6px;
  --faq-transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 100%;
  padding: 1rem 1rem 3rem;
  margin: 0 auto;
  color: var(--text-primary);
  font-family: var(--font-body);
  background: var(--background);
  box-sizing: border-box;
}

/* ---- Hero 区 ---- */
.page-faq .faq-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1rem 1.5rem;
  position: relative;
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 30%, var(--faq-hero-glow) 0%, transparent 70%);
  pointer-events: none;
}
.page-faq .faq-hero-icon {
  width: 120px;
  height: 120px;
  object-fit: contain;
  filter: drop-shadow(0 0 20px rgba(212, 175, 55, 0.3));
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 2.2rem;
  margin: 0.75rem 0 0.4rem;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero-sub {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 480px;
  position: relative;
  z-index: 1;
  margin: 0;
}

/* ---- 面包屑 ---- */
.page-faq .faq-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.5rem 0.25rem 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}
.page-faq .faq-breadcrumb a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
.page-faq .faq-breadcrumb a:hover {
  color: var(--text-primary);
}
.page-faq .faq-breadcrumb-sep {
  color: var(--border);
  user-select: none;
}

/* ---- 左右布局 ---- */
.page-faq .faq-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  width: 100%;
  max-width: var(--content-max-width, 1280px);
  margin: 0 auto;
}

/* ---- 左侧快速导航 ---- */
.page-faq .faq-nav {
  flex-shrink: 0;
  width: 100%;
}
.page-faq .faq-nav-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin: 0 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.page-faq .faq-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.page-faq .faq-nav-link {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
}
.page-faq .faq-nav-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(212, 175, 55, 0.06);
}

/* ---- 手风琴容器 ---- */
.page-faq .faq-accordion {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ---- 单个问题项 ---- */
.page-faq .faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--faq-item-radius);
  overflow: hidden;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
}
.page-faq .faq-item:hover {
  border-color: var(--secondary);
  box-shadow: 0 0 0 1px rgba(91, 45, 142, 0.15);
}

/* ---- 问题标题（可点击） ---- */
.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 1rem 1.25rem;
  cursor: pointer;
  user-select: none;
  background: transparent;
  transition: background var(--faq-transition);
  position: relative;
}
.page-faq .faq-question:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
.page-faq .faq-question:hover {
  background: rgba(91, 45, 142, 0.05);
}
.page-faq .faq-q-num {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--faq-num-size);
  line-height: 1;
  color: var(--accent);
  flex-shrink: 0;
  min-width: 2.8rem;
  transition: transform var(--faq-transition);
}
.page-faq .faq-item:hover .faq-q-num {
  transform: scale(1.12);
}
.page-faq .faq-q-text {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--text-primary);
  flex: 1;
  letter-spacing: 0.02em;
}
.page-faq .faq-q-icon {
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: transform var(--faq-transition);
  line-height: 1;
}

/* ---- 答案区域 ---- */
.page-faq .faq-answer {
  display: block;
  overflow: hidden;
  transition: max-height var(--faq-transition), opacity var(--faq-transition);
  border-top: 0 solid var(--border);
}
.page-faq .faq-answer-inner {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-secondary);
}
.page-faq .faq-answer-inner p {
  margin: 0 0 0.75rem;
}
.page-faq .faq-answer-inner p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-answer-img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 0.75rem 0;
  border: 1px solid var(--border);
  object-fit: cover;
}
.page-faq .faq-answer-meta {
  font-size: 0.82rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
  margin-top: 0.75rem;
}
.page-faq .faq-answer-meta a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
.page-faq .faq-answer-meta a:hover {
  color: var(--text-primary);
}

/* ---- 联系方式列表 ---- */
.page-faq .faq-contact-list {
  list-style: none;
  margin: 0.5rem 0 0.75rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.page-faq .faq-contact-list li {
  font-size: 0.95rem;
  color: var(--text-secondary);
}
.page-faq .faq-contact-list a {
  color: var(--accent);
  text-decoration: none;
}
.page-faq .faq-contact-list a:hover {
  text-decoration: underline;
}

/* ---- 手风琴折叠状态（JS 驱动） ---- */
.page-faq .faq-item[data-collapsed="true"] .faq-answer {
  max-height: 0 !important;
  opacity: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-top-width: 0;
}
.page-faq .faq-item[data-collapsed="true"] .faq-q-icon {
  transform: rotate(0deg);
}
.page-faq .faq-item:not([data-collapsed="true"]) .faq-q-icon {
  transform: rotate(45deg);
}

/* ---- 桌面端 (≥768px) ---- */
@media (min-width: 768px) {
  .page-faq {
    padding: 2rem 2rem 4rem;
  }
  .page-faq .faq-hero {
    padding: 3rem 2rem 2rem;
  }
  .page-faq .faq-hero-icon {
    width: 180px;
    height: 180px;
  }
  .page-faq .faq-hero-title {
    font-size: 3rem;
  }
  .page-faq .faq-hero-sub {
    font-size: 1.1rem;
  }
  .page-faq .faq-layout {
    flex-direction: row;
    gap: 2.5rem;
    align-items: flex-start;
  }
  .page-faq .faq-nav {
    width: var(--faq-nav-width);
    position: sticky;
    top: calc(var(--header-height, 120px) + 1.5rem);
    align-self: flex-start;
  }
  .page-faq .faq-nav-list {
    flex-direction: column;
    gap: 0.25rem;
  }
  .page-faq .faq-nav-link {
    white-space: normal;
    font-size: 0.9rem;
    padding: 0.4rem 0.9rem;
    border: none;
    border-left: 2px solid var(--border);
    border-radius: 0;
    background: transparent;
  }
  .page-faq .faq-nav-link:hover {
    border-left-color: var(--accent);
    background: rgba(212, 175, 55, 0.04);
  }
  .page-faq .faq-accordion {
    flex: 1;
    min-width: 0;
  }
  .page-faq .faq-q-text {
    font-size: 1.1rem;
  }
  .page-faq .faq-q-num {
    font-size: 2.8rem;
    min-width: 3.2rem;
  }
  .page-faq .faq-answer-inner {
    padding: 0 1.5rem 1.5rem 1.5rem;
    font-size: 1rem;
  }
  .page-faq .faq-answer-img {
    max-width: 420px;
  }
}

/* ---- 大桌面端 (≥1024px) ---- */
@media (min-width: 1024px) {
  .page-faq .faq-hero-title {
    font-size: 3.5rem;
  }
  .page-faq .faq-nav {
    width: 240px;
  }
  .page-faq .faq-q-num {
    font-size: 3.2rem;
    min-width: 3.6rem;
  }
}

/* ---- 防止横向溢出 ---- */
.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}
.page-faq img {
  max-width: 100%;
  height: auto;
}