/* ===== FAQ 页面专属样式 ===== */
.page-faq {
  background: var(--bg-deep);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

/* ---------- Hero 区块 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 0 0 0;
  background-color: var(--bg-elevated);
  background-image:
    linear-gradient(rgba(69, 123, 157, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(69, 123, 157, 0.14) 1px, transparent 1px);
  background-size: 34px 34px;
  border-bottom: 3px solid var(--primary-red);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 74%, rgba(230, 57, 70, 0.18) 74%);
  pointer-events: none;
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
  padding-top: 24px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 24px;
  padding: 32px 0 0;
}

.page-faq .faq-hero__content {
  max-width: 760px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 4.8vw, 3.9rem);
  line-height: 1.08;
  color: var(--ink);
  margin: 10px 0 18px;
  letter-spacing: 0.01em;
}

.page-faq .faq-hero__sub {
  display: block;
  color: var(--data-cyan);
  font-size: clamp(1rem, 2vw, 1.45rem);
  line-height: 1.25;
  margin-top: 8px;
}

.page-faq .faq-hero__lead {
  color: var(--muted);
  font-size: 1.0625rem;
  max-width: 640px;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 24px;
}

.page-faq .faq-hero__stat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 0.9rem;
  color: var(--ink);
  background: rgba(29, 53, 87, 0.62);
  border: 1px solid rgba(69, 123, 157, 0.45);
  border-radius: 999px;
  padding: 6px 14px;
}

.page-faq .faq-hero__stat-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 0 3px rgba(42, 157, 143, 0.22);
}

.page-faq .faq-hero__media {
  margin-top: 8px;
}

.page-faq .faq-hero__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 1;
  object-fit: cover;
  border-radius: var(--radius-soft) var(--radius-soft) 0 0;
  border: 2px solid rgba(69, 123, 157, 0.5);
  border-bottom: none;
}

/* ---------- 快速过滤条 ---------- */
.page-faq .faq-filter {
  background: rgba(22, 33, 62, 0.7);
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}

.page-faq .faq-filter__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-filter__search {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
  padding-right: 4px;
}

.page-faq .faq-filter__search-icon {
  color: var(--accent-green);
}

.page-faq .faq-filter__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-filter__tag {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.85rem;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.page-faq .faq-filter__tag:hover {
  background: var(--primary-red);
  border-color: var(--primary-red);
  color: var(--ink);
}

.page-faq .faq-filter__hint {
  font-family: var(--font-data);
  font-size: 0.8rem;
  color: var(--border);
  margin-left: auto;
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 32px;
  padding: 32px 0 64px;
}

/* ---------- 侧边栏 ---------- */
.page-faq .faq-sidebar {
  align-self: start;
}

.page-faq .faq-sidebar__route-label {
  font-family: var(--font-data);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--border);
  margin: 0;
}

.page-faq .faq-sidebar__route-value {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--ink);
  margin: 2px 0 0;
  padding-left: 10px;
  border-left: 3px solid var(--accent-green);
}

.page-faq .faq-sidebar__title {
  font-family: var(--font-data);
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--muted);
  margin: 28px 0 14px;
  letter-spacing: 0.08em;
}

.page-faq .faq-sidebar__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-sidebar__list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--ink);
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}

.page-faq .faq-sidebar__list a:hover {
  background: var(--bg-elevated);
  color: var(--data-cyan);
}

.page-faq .faq-sidebar__code {
  font-family: var(--font-data);
  font-size: 0.8rem;
  color: var(--accent-green);
}

.page-faq .faq-sidebar__card {
  margin-top: 24px;
  background: var(--bg-elevated);
  border: 1px solid rgba(69, 123, 157, 0.5);
  border-radius: var(--radius);
  padding: 18px;
}

.page-faq .faq-sidebar__card-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary-red);
  box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.2);
  margin-bottom: 10px;
}

.page-faq .faq-sidebar__card-title {
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--ink);
}

.page-faq .faq-sidebar__card-text {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 14px;
}

/* ---------- FAQ 面板区 ---------- */
.page-faq .faq-panels {
  display: grid;
  gap: 40px;
  min-width: 0;
}

/* ---------- 分组标题 ---------- */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 16px);
  transition: box-shadow var(--transition);
}

.page-faq .faq-group:target {
  box-shadow: 0 0 0 3px rgba(42, 157, 143, 0.35);
  border-radius: var(--radius-soft);
  padding: 6px;
  margin: -6px;
}

.page-faq .faq-group__header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--primary-blue);
  border-radius: var(--radius-soft);
  padding: 20px;
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
}

.page-faq .faq-group__num {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1;
  color: var(--primary-red);
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.25);
}

.page-faq .faq-group__header h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  margin: 0;
  color: var(--ink);
  line-height: 1.2;
}

.page-faq .faq-group__header p {
  margin: 4px 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}

/* ---------- 折叠面板 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.page-faq .faq-item {
  background: rgba(22, 33, 62, 0.42);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), background var(--transition);
}

.page-faq .faq-item:hover {
  border-color: var(--data-cyan);
  background: rgba(22, 33, 62, 0.68);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-faq .faq-item__mark {
  font-family: var(--font-data);
  font-size: 0.8rem;
  color: var(--accent-green);
  width: 48px;
  flex-shrink: 0;
}

.page-faq .faq-item__slash {
  color: var(--border);
}

.page-faq .faq-item__q {
  flex: 1;
  color: var(--ink);
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .faq-item__icon {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-red);
  color: var(--ink);
  font-family: var(--font-data);
  font-size: 1.1rem;
  line-height: 1;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
}

.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(45deg);
  background: var(--accent-green);
}

.page-faq .faq-item__a {
  padding: 0 18px 18px;
  color: var(--muted);
  font-size: 0.95rem;
  border-top: 1px dashed rgba(69, 123, 157, 0.4);
  margin: 0 12px;
}

.page-faq .faq-item__a p {
  margin: 14px 0 0;
}

.page-faq .faq-item__related {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(69, 123, 157, 0.3);
  font-size: 0.85rem;
}

.page-faq .faq-item__related-label {
  color: var(--muted);
}

.page-faq .faq-item__related a {
  color: var(--data-cyan);
  text-decoration: none;
  transition: color var(--transition);
}

.page-faq .faq-item__related a:hover {
  color: var(--accent-green);
}

/* ---------- 会员信息图 ---------- */
.page-faq .faq-group__media {
  margin: 16px 0 0;
}

.page-faq .faq-group__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  border-radius: var(--radius-soft);
  border: 2px solid rgba(69, 123, 157, 0.5);
}

.page-faq .faq-tier-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.page-faq .faq-tier-strip__item {
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--ink);
  background: var(--bg-elevated);
  border: 1px solid rgba(69, 123, 157, 0.5);
  border-radius: 999px;
  padding: 4px 12px;
}

/* ---------- CTA 区块 ---------- */
.page-faq .faq-cta {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-cta__panel {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--bg-elevated) 82%);
  border-radius: var(--radius-soft);
  padding: 28px 24px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}

.page-faq .faq-cta h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  margin: 6px 0 8px;
  color: var(--ink);
}

.page-faq .faq-cta__text {
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 620px;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-faq .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.page-faq .btn-primary {
  background: var(--primary-red);
  color: var(--ink);
}

.page-faq .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(230, 57, 70, 0.35);
}

.page-faq .btn-outline {
  border: 1px solid var(--border);
  color: var(--ink);
}

.page-faq .btn-outline:hover {
  background: rgba(42, 157, 143, 0.18);
  border-color: var(--accent-green);
}

/* ---------- 交互可见性 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 2px;
  border-radius: 8px;
}

.page-faq [data-reveal] {
  /* data-reveal 由全站 site.js 控制，无脚本时保持完整可见 */
}

/* ---------- 桌面端布局 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 48px;
    padding: 44px 0 80px;
  }

  .page-faq .faq-sidebar {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    padding-right: 4px;
  }

  .page-faq .faq-hero__grid {
    padding-top: 44px;
  }

  .page-faq .faq-hero__meta {
    margin-top: 30px;
  }

  .page-faq .faq-group__header {
    padding: 28px 32px;
    gap: 18px;
  }

  .page-faq .faq-item summary {
    padding: 18px 22px;
  }

  .page-faq .faq-item__a {
    padding: 0 22px 22px;
  }

  .page-faq .faq-cta__panel {
    padding: 40px 44px;
  }
}