/* ===== page-faq 专属样式 ===== */
.page-faq {
  --faq-nav-width: 220px;
  --faq-gold-glow: 0 0 12px rgba(212, 175, 55, 0.35);
  --faq-crimson-bg: linear-gradient(135deg, #7a0000 0%, #8B0000 100%);
  --faq-answer-radius: 6px;
  --faq-transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  display: block;
  max-width: var(--content-max, 1200px);
  margin: 0 auto;
  padding: calc(var(--header-height, 64px) + 20px) var(--gap, 16px) 60px;
  color: var(--text-light, #FFFFFF);
  font-family: var(--font-body, 'Inter', 'Noto Sans SC', sans-serif);
  background: var(--bg-dark, #1A1A1A);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 0.85rem;
  color: var(--rock-gray, #8B8682);
}
.page-faq .breadcrumb a {
  color: var(--gold, #D4AF37);
  text-decoration: none;
  transition: color var(--faq-transition);
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--gold-light, #E8C84A);
  text-decoration: underline;
}
.page-faq .breadcrumb__sep {
  color: var(--gold, #D4AF37);
  font-size: 0.6rem;
  opacity: 0.7;
}
.page-faq .breadcrumb [aria-current="page"] {
  color: var(--text-light, #FFFFFF);
  font-weight: 500;
}

/* ---------- 标题区 ---------- */
.page-faq .faq-hero {
  margin-bottom: 40px;
  position: relative;
}
.page-faq .faq-hero__title {
  font-family: var(--font-heading, 'Overpass', 'Noto Sans SC', sans-serif);
  font-weight: 900;
  font-size: clamp(2.2rem, 6vw, 3.5rem);
  text-transform: uppercase;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #D4AF37, #8B0000);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0 0 8px;
  line-height: 1.15;
}
.page-faq .faq-hero__subtitle {
  font-size: 1.05rem;
  color: var(--rock-gray, #8B8682);
  margin: 0 0 24px;
  max-width: 580px;
  line-height: 1.6;
}

/* ---------- 搜索框 ---------- */
.page-faq .faq-search {
  position: relative;
  max-width: 480px;
}
.page-faq .faq-search__input {
  width: 100%;
  padding: 14px 18px 14px 48px;
  border: 1.5px solid var(--gold-dark, #B8962E);
  border-radius: var(--radius, 4px);
  background: var(--black-soft, #0D0D0D);
  color: var(--text-light, #FFFFFF);
  font-size: 1rem;
  font-family: var(--font-body, 'Inter', 'Noto Sans SC', sans-serif);
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
  box-sizing: border-box;
}
.page-faq .faq-search__input::placeholder {
  color: var(--rock-gray, #8B8682);
  opacity: 0.8;
}
.page-faq .faq-search__input:focus {
  outline: none;
  border-color: var(--gold, #D4AF37);
  box-shadow: var(--faq-gold-glow);
}
.page-faq .faq-search__icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  color: var(--gold, #D4AF37);
  pointer-events: none;
  line-height: 1;
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* ---------- 索引导航 ---------- */
.page-faq .faq-nav {
  flex-shrink: 0;
}
.page-faq .faq-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--gold-dark, #B8962E) transparent;
  padding-bottom: 8px;
}
.page-faq .faq-nav__list::-webkit-scrollbar {
  height: 4px;
}
.page-faq .faq-nav__list::-webkit-scrollbar-track {
  background: transparent;
}
.page-faq .faq-nav__list::-webkit-scrollbar-thumb {
  background: var(--gold-dark, #B8962E);
  border-radius: 4px;
}
.page-faq .faq-nav__item {
  flex-shrink: 0;
}
.page-faq .faq-nav__link {
  display: block;
  padding: 10px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gold, #D4AF37);
  background: transparent;
  border: 1px solid var(--gold-dark, #B8962E);
  border-radius: var(--radius, 4px);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--faq-transition), color var(--faq-transition), box-shadow var(--faq-transition);
  font-family: var(--font-heading, 'Overpass', 'Noto Sans SC', sans-serif);
  letter-spacing: 0.5px;
}
.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  background: rgba(212, 175, 55, 0.12);
  box-shadow: var(--faq-gold-glow);
  color: var(--gold-light, #E8C84A);
}
.page-faq .faq-nav__link:focus-visible {
  outline: 2px solid var(--gold, #D4AF37);
  outline-offset: 2px;
}

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

/* ---------- 每个分类区块 ---------- */
.page-faq .faq-section {
  margin-bottom: 48px;
  scroll-margin-top: calc(var(--header-height, 64px) + 20px);
}
.page-faq .faq-section__title {
  font-family: var(--font-heading, 'Overpass', 'Noto Sans SC', sans-serif);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--gold, #D4AF37);
  margin: 0 0 6px;
  letter-spacing: 1px;
  position: relative;
  padding-left: 16px;
}
.page-faq .faq-section__title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: linear-gradient(to bottom, var(--gold, #D4AF37), var(--crimson, #8B0000));
  border-radius: 2px;
}
.page-faq .faq-section__intro {
  color: var(--rock-gray, #8B8682);
  font-size: 0.95rem;
  margin: 0 0 24px 16px;
  line-height: 1.6;
}

/* ---------- 单个问题项 ---------- */
.page-faq .faq-item {
  margin-bottom: 10px;
  border-bottom: 1px solid rgba(212, 175, 55, 0.15);
}
.page-faq .faq-item:last-child {
  border-bottom: none;
}

/* ---------- details / summary ---------- */
.page-faq .faq-details {
  display: block;
}
.page-faq .faq-details[open] {
  padding-bottom: 16px;
}

.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 12px 16px 16px;
  cursor: pointer;
  list-style: none;
  border-radius: var(--faq-answer-radius);
  transition: background var(--faq-transition);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.page-faq .faq-question::-webkit-details-marker {
  display: none;
}
.page-faq .faq-question:hover {
  background: rgba(212, 175, 55, 0.06);
}
.page-faq .faq-question:focus-visible {
  outline: 2px solid var(--gold, #D4AF37);
  outline-offset: -2px;
}

.page-faq .faq-question__marker {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gold, #D4AF37);
  border: 1.5px solid var(--gold-dark, #B8962E);
  border-radius: 50%;
  transition: transform var(--faq-transition), background var(--faq-transition), color var(--faq-transition);
  line-height: 1;
}
.page-faq .faq-details[open] .faq-question__marker {
  transform: rotate(45deg);
  background: var(--gold, #D4AF37);
  color: var(--black, #000000);
  border-color: var(--gold, #D4AF37);
}

.page-faq .faq-question__text {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-light, #FFFFFF);
  transition: color var(--faq-transition);
  font-family: var(--font-heading, 'Overpass', 'Noto Sans SC', sans-serif);
  letter-spacing: 0.3px;
  line-height: 1.4;
}
.page-faq .faq-details[open] .faq-question__text {
  color: var(--gold-light, #E8C84A);
}

/* ---------- 答案区域 ---------- */
.page-faq .faq-answer {
  padding: 8px 16px 12px 56px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-light, #FFFFFF);
  background: var(--faq-crimson-bg);
  border-radius: 0 var(--faq-answer-radius) var(--faq-answer-radius) var(--faq-answer-radius);
  margin: 0 0 8px;
}
.page-faq .faq-answer p {
  margin: 0 0 12px;
}
.page-faq .faq-answer p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-answer a.faq-link {
  color: var(--neon-blue, #00BFFF);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(0, 191, 255, 0.4);
  transition: color var(--faq-transition), text-decoration-color var(--faq-transition);
  font-weight: 500;
}
.page-faq .faq-answer a.faq-link:hover,
.page-faq .faq-answer a.faq-link:focus-visible {
  color: var(--neon-green, #39FF14);
  text-decoration-color: var(--neon-green, #39FF14);
}

/* 关键词高亮 */
.page-faq .faq-highlight {
  color: var(--neon-green, #39FF14);
  font-weight: 600;
  letter-spacing: 0.3px;
}

/* 步骤列表 */
.page-faq .faq-steps {
  margin: 12px 0 0 20px;
  padding: 0;
  list-style: decimal;
  color: var(--text-light, #FFFFFF);
}
.page-faq .faq-steps li {
  margin-bottom: 8px;
  padding-left: 8px;
}
.page-faq .faq-steps li strong {
  color: var(--gold-light, #E8C84A);
}

/* 联系列表 */
.page-faq .faq-contact-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}
.page-faq .faq-contact-list li {
  margin-bottom: 8px;
  padding: 6px 12px;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 4px;
  border-left: 3px solid var(--gold, #D4AF37);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 8px;
  padding: 0;
  max-width: 100%;
}
.page-faq .faq-figure__img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius, 4px);
  border: 1px solid rgba(212, 175, 55, 0.25);
  background: var(--black-soft, #0D0D0D);
  object-fit: cover;
}
.page-faq .faq-figure__cap {
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--rock-gray, #8B8682);
  font-style: italic;
  letter-spacing: 0.3px;
}

/* ---------- 额外帮助区 ---------- */
.page-faq .faq-extra {
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid rgba(212, 175, 55, 0.2);
}
.page-faq .faq-extra__inner {
  text-align: center;
  max-width: 520px;
  margin: 0 auto;
}
.page-faq .faq-extra__title {
  font-family: var(--font-heading, 'Overpass', 'Noto Sans SC', sans-serif);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--gold, #D4AF37);
  margin: 0 0 12px;
  letter-spacing: 1px;
}
.page-faq .faq-extra__text {
  color: var(--rock-gray, #8B8682);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0 0 24px;
}
.page-faq .faq-extra__btn {
  display: inline-block;
  padding: 14px 36px;
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-heading, 'Overpass', 'Noto Sans SC', sans-serif);
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--black, #000000);
  background: linear-gradient(135deg, #D4AF37, #B8962E);
  border: none;
  border-radius: var(--radius, 4px);
  text-decoration: none;
  transition: box-shadow var(--faq-transition), transform var(--faq-transition);
  cursor: pointer;
}
.page-faq .faq-extra__btn:hover,
.page-faq .faq-extra__btn:focus-visible {
  box-shadow: 0 0 24px rgba(212, 175, 55, 0.5);
  transform: translateY(-2px);
}
.page-faq .faq-extra__btn:focus-visible {
  outline: 2px solid var(--gold, #D4AF37);
  outline-offset: 4px;
}

/* ---------- 滚动显现动画 ---------- */
@media (prefers-reduced-motion: no-preference) {
  .page-faq [data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
  .page-faq [data-reveal][data-revealed] {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ===== 桌面端 ≥768px ===== */
@media (min-width: 768px) {
  .page-faq {
    padding: calc(var(--header-height, 64px) + 32px) var(--gap, 24px) 80px;
  }

  .page-faq .faq-layout {
    flex-direction: row;
    gap: 40px;
  }

  /* 导航垂直 */
  .page-faq .faq-nav {
    width: var(--faq-nav-width, 220px);
    position: sticky;
    top: calc(var(--header-height, 64px) + 24px);
    align-self: flex-start;
  }
  .page-faq .faq-nav__list {
    flex-direction: column;
    gap: 6px;
    overflow-x: visible;
    padding-bottom: 0;
  }
  .page-faq .faq-nav__link {
    white-space: normal;
    padding: 12px 18px;
    font-size: 0.95rem;
    border-color: rgba(212, 175, 55, 0.2);
    border-left: 3px solid transparent;
    transition: border-color var(--faq-transition), background var(--faq-transition), box-shadow var(--faq-transition);
  }
  .page-faq .faq-nav__link:hover,
  .page-faq .faq-nav__link:focus-visible {
    border-left-color: var(--gold, #D4AF37);
    background: rgba(212, 175, 55, 0.08);
  }

  /* 内容区留白 */
  .page-faq .faq-answer {
    padding: 12px 24px 16px 64px;
  }

  /* 图片适应 */
  .page-faq .faq-figure__img {
    max-width: 90%;
  }
}

/* ===== 大桌面 ≥1024px ===== */
@media (min-width: 1024px) {
  .page-faq .faq-nav {
    width: 240px;
  }
  .page-faq .faq-nav__link {
    padding: 14px 22px;
    font-size: 1rem;
  }
  .page-faq .faq-section__title {
    font-size: 1.8rem;
  }
  .page-faq .faq-question__text {
    font-size: 1.1rem;
  }
  .page-faq .faq-answer {
    font-size: 1rem;
    padding: 16px 32px 20px 72px;
  }
}

/* ===== 移动端安全间距 ===== */
@media (max-width: 420px) {
  .page-faq {
    padding-left: 10px;
    padding-right: 10px;
  }
  .page-faq .faq-question {
    padding: 12px 8px 12px 10px;
  }
  .page-faq .faq-question__text {
    font-size: 0.95rem;
  }
  .page-faq .faq-answer {
    padding: 8px 12px 12px 40px;
    font-size: 0.88rem;
  }
  .page-faq .faq-search__input {
    padding: 12px 14px 12px 42px;
    font-size: 0.9rem;
  }
}