/* =============================================
   问答中心 - 页面专属样式
   作用域：.page-faq
   ============================================= */
.page-faq {
  --faq-gold-grad: linear-gradient(135deg, #E4C76F 0%, #C9A84C 45%, #E4C76F 100%);
  --faq-shadow-sm: 6px 6px 0 rgba(11, 27, 58, 0.10);
  --faq-shadow-lg: 12px 12px 0 rgba(11, 27, 58, 0.16);
  --faq-deco-line: 1px solid rgba(11, 27, 58, 0.12);
  background: var(--ivory);
  color: var(--charcoal);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
}

.page-faq h1,
.page-faq h2,
.page-faq h3,
.page-faq h4 {
  font-family: var(--font-display);
  line-height: 1.15;
}

/* --------------------------------------------
   Hero 区
-------------------------------------------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 40px 0 56px;
  background:
    linear-gradient(135deg, rgba(201, 168, 76, 0.10) 0%, transparent 30%),
    linear-gradient(315deg, rgba(22, 46, 90, 0.85) 0%, transparent 34%),
    var(--deep);
  color: var(--ivory);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(201, 168, 76, 0.28) 0%, transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -50px;
  bottom: -90px;
  width: 300px;
  height: 300px;
  border: 3px solid rgba(201, 168, 76, 0.22);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-faq .faq-hero-watermark {
  position: absolute;
  right: -0.08em;
  top: 0.06em;
  z-index: 0;
  font-family: var(--font-display);
  font-size: 7rem;
  line-height: 0.8;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(201, 168, 76, 0.20);
  pointer-events: none;
  user-select: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero-topline {
  margin-bottom: 32px;
}

.page-faq .faq-breadcrumb {
  margin: 0 0 20px;
  font-size: 0.85rem;
  color: rgba(248, 244, 236, 0.7);
}

.page-faq .faq-breadcrumb a {
  color: var(--gold-light);
  text-decoration: none;
  transition: color 0.25s ease;
}

.page-faq .faq-breadcrumb a:hover {
  color: var(--coral);
}

.page-faq .faq-hero-banner-wrap {
  border: 3px solid rgba(201, 168, 76, 0.55);
  box-shadow: var(--faq-shadow-lg);
  display: inline-block;
  max-width: 100%;
}

.page-faq .faq-hero-banner {
  display: block;
  width: 100%;
  max-width: 800px;
  height: auto;
  vertical-align: bottom;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

.page-faq .faq-hero-copy .exhibit-tag {
  color: var(--gold-light);
  border-color: var(--gold-light);
}

.page-faq .faq-hero-copy h1 {
  margin: 14px 0 18px;
  font-size: clamp(2rem, 6vw, 4.2rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  max-width: 12em;
  background: linear-gradient(120deg, var(--gold-light) 0%, var(--gold) 40%, var(--gold-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-hero-desc {
  max-width: 38em;
  font-size: 1.02rem;
  color: rgba(248, 244, 236, 0.92);
  margin: 0;
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 30px;
}

.page-faq .faq-stat {
  border-left: 3px solid var(--gold);
  padding-left: 14px;
}

.page-faq .faq-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.9rem;
  line-height: 1.1;
  color: var(--gold-light);
}

.page-faq .faq-stat span {
  display: block;
  margin-top: 4px;
  font-size: 0.82rem;
  color: rgba(248, 244, 236, 0.72);
}

.page-faq .faq-hero-card {
  background: var(--ivory);
  color: var(--charcoal);
  border: 3px solid var(--gold);
  box-shadow: var(--faq-shadow-lg);
  padding: 26px 24px;
}

.page-faq .faq-card-kicker {
  display: block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--coral);
}

.page-faq .faq-hero-card h2 {
  margin: 8px 0 18px;
  font-size: 1.6rem;
  color: var(--deep);
}

.page-faq .faq-hero-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-hero-links li {
  padding: 14px 0;
  border-top: 1px solid var(--ivory-dark);
}

.page-faq .faq-hero-links li:first-child {
  border-top: 0;
}

.page-faq .faq-hero-links a {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--deep);
  text-decoration: none;
  transition: color 0.25s ease;
}

.page-faq .faq-hero-links a:hover {
  color: var(--coral);
}

.page-faq .faq-hero-links li span {
  display: block;
  margin-top: 4px;
  font-size: 0.84rem;
  color: var(--slate);
}

/* --------------------------------------------
   通用区块
-------------------------------------------- */
.page-faq .faq-section {
  padding: 56px 0;
}

.page-faq .faq-title-row {
  margin-bottom: 28px;
}

.page-faq .faq-title-box h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  color: var(--deep);
  margin: 0;
}

/* --------------------------------------------
   热点问题
-------------------------------------------- */
.page-faq .faq-hot {
  background: var(--ivory);
}

.page-faq .faq-hot-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

/* --------------------------------------------
   手风琴组件
-------------------------------------------- */
.page-faq .faq-item {
  border: 3px solid var(--deep);
  box-shadow: var(--faq-shadow-sm);
  background: #FFFDF8;
  transition: box-shadow 0.3s ease;
}

.page-faq .faq-item[open] {
  box-shadow: var(--faq-shadow-lg);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
}

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

.page-faq .faq-q {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.3;
  color: var(--deep);
}

.page-faq .faq-toggle {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  border: 2px solid var(--gold);
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease, color 0.3s ease;
}

.page-faq .faq-toggle svg {
  width: 18px;
  height: 18px;
  display: block;
}

.page-faq .faq-item[open] .faq-toggle {
  background: var(--gold);
  color: var(--deep);
}

.page-faq .faq-item[open] .faq-toggle-v {
  display: none;
}

.page-faq .faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-faq .faq-item[open] .faq-a {
  grid-template-rows: 1fr;
}

.page-faq .faq-a-inner {
  overflow: hidden;
  padding: 0 20px;
  border-top: 1px solid transparent;
  transition: padding 0.45s ease, border-color 0.3s ease;
}

.page-faq .faq-item[open] .faq-a-inner {
  padding-top: 16px;
  padding-bottom: 20px;
  border-top-color: rgba(11, 27, 58, 0.12);
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-guide-img {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
  margin: 18px auto 0;
  border: 3px solid var(--deep);
  box-shadow: var(--faq-shadow-sm);
}

/* --------------------------------------------
   按分类浏览
-------------------------------------------- */
.page-faq .faq-cat {
  background: var(--ivory-dark);
}

.page-faq .faq-cat-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-faq .faq-sidebar {
  position: relative;
}

.page-faq .faq-sidebar-inner {
  background: var(--deep);
  padding: 28px 24px;
  border: 3px solid var(--gold);
  box-shadow: var(--faq-shadow-lg);
  position: sticky;
  top: 90px;
}

.page-faq .faq-sidebar-num {
  display: block;
  font-family: var(--font-display);
  font-size: 3.2rem;
  line-height: 1;
  font-weight: 700;
  color: rgba(201, 168, 76, 0.28);
  margin-bottom: 6px;
}

.page-faq .faq-sidebar .exhibit-tag {
  color: var(--gold-light);
  border-color: var(--gold-light);
}

.page-faq .faq-sidebar h2 {
  margin: 10px 0 20px;
  font-size: 1.75rem;
  color: var(--gold);
}

.page-faq .faq-cat-nav {
  display: flex;
  flex-direction: column;
}

.page-faq .faq-cat-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 4px;
  color: var(--ivory);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  font-family: var(--font-display);
  transition: color 0.25s ease, background 0.25s ease;
}

.page-faq .faq-cat-link:last-child {
  border-bottom: 0;
}

.page-faq .faq-cat-link:hover,
.page-faq .faq-cat-link:active {
  color: var(--gold-light);
  background: rgba(255, 255, 255, 0.04);
}

.page-faq .faq-cat-num {
  font-size: 0.78rem;
  color: var(--coral);
  letter-spacing: 0.08em;
}

.page-faq .faq-cat-name {
  font-weight: 600;
  font-size: 0.98rem;
}

.page-faq .faq-cat-content {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.page-faq .faq-cat-group {
  background: var(--ivory);
  border: 3px solid var(--deep);
  box-shadow: var(--faq-shadow-sm);
  padding: 22px 18px 24px;
  scroll-margin-top: 110px;
}

.page-faq .faq-cat-group h3 {
  margin: 0 0 18px;
  font-size: 1.35rem;
  color: var(--deep);
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-cat-group h3::before {
  content: "";
  flex: 0 0 auto;
  width: 18px;
  height: 3px;
  background: var(--gold);
}

.page-faq .faq-cat-group .faq-item {
  margin-bottom: 12px;
}

.page-faq .faq-cat-group .faq-item:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------
   旧版对照索引
-------------------------------------------- */
.page-faq .faq-compare {
  background: var(--deep);
}

.page-faq .faq-compare .faq-title-box h2 {
  color: var(--gold);
}

.page-faq .faq-compare .section-sub {
  color: rgba(248, 244, 236, 0.72);
}

.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: 3px solid var(--gold);
  box-shadow: var(--faq-shadow-lg);
  background: var(--ivory);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(11, 27, 58, 0.12);
}

.page-faq .faq-table thead th {
  background: var(--deep);
  color: var(--gold);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 3px solid var(--gold);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table tbody th {
  font-family: var(--font-display);
  font-size: 0.98rem;
  color: var(--deep);
  white-space: nowrap;
}

.page-faq .faq-table td {
  font-size: 0.94rem;
  color: var(--charcoal);
}

.page-faq .faq-table tbody tr {
  transition: background 0.2s ease;
}

.page-faq .faq-table tbody tr:hover {
  background: #FFF7E2;
}

/* --------------------------------------------
   帮助 CTA
-------------------------------------------- */
.page-faq .faq-help {
  background: var(--deep-2);
}

.page-faq .faq-help-card {
  border: 3px solid var(--gold);
  background: linear-gradient(135deg, var(--deep) 0%, var(--deep-2) 100%);
  color: var(--ivory);
  padding: 36px 24px;
  text-align: center;
  box-shadow: var(--faq-shadow-lg);
}

.page-faq .faq-help-card .exhibit-tag {
  color: var(--gold-light);
  border-color: var(--gold-light);
  display: inline-flex;
}

.page-faq .faq-help-card h2 {
  margin: 12px 0 12px;
  color: var(--gold);
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.page-faq .faq-help-card p {
  max-width: 36em;
  margin: 0 auto 24px;
  color: rgba(248, 244, 236, 0.85);
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

/* --------------------------------------------
   焦点可见
-------------------------------------------- */
.page-faq .faq-cat-link:focus-visible,
.page-faq .faq-item summary:focus-visible,
.page-faq .faq-hero-links a:focus-visible,
.page-faq .faq-breadcrumb a:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 2px;
}

/* --------------------------------------------
   桌面端 ≥ 900px
-------------------------------------------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 56px 0 80px;
  }

  .page-faq .faq-hero-watermark {
    font-size: 12rem;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 1.4fr 0.9fr;
    gap: 48px;
  }

  .page-faq .faq-hot-list {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .page-faq .faq-cat-layout {
    grid-template-columns: 300px 1fr;
    gap: 36px;
  }

  .page-faq .faq-section {
    padding: 80px 0;
  }

  .page-faq .faq-cat-group {
    padding: 28px 26px 30px;
  }
}

/* --------------------------------------------
   无障碍：减少动态效果
-------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-a,
  .page-faq .faq-a-inner,
  .page-faq .faq-item,
  .page-faq .faq-item[open],
  .page-faq .faq-toggle,
  .page-faq .faq-hero::before,
  .page-faq .faq-hero::after {
    transition: none;
  }
}