.page-faq {
  background: var(--bg);
}

.page-faq .container {
  width: min(100% - 40px, var(--content-max));
  margin-inline: auto;
}

/* ===== Hero 首屏 ===== */
.page-faq .faq-hero {
  position: relative;
  padding: 28px 0 48px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  background:
    radial-gradient(ellipse at 78% 10%, rgba(123, 44, 191, 0.10), transparent 55%),
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 169, 0, 0.08), transparent 70%);
  pointer-events: none;
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 36px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--dim);
}

.page-faq .breadcrumb a {
  color: var(--dim);
  text-decoration: none;
  transition: color 120ms ease;
}

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

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--gold);
}

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .faq-hero-copy .pill {
  margin-bottom: 20px;
}

.page-faq .faq-hero-copy h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .page-intro {
  margin: 0 0 24px;
  max-width: 480px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--dim);
}

.page-faq .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.page-faq .hero-meta .mono-label {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: rgba(15, 37, 71, 0.6);
  color: var(--dim);
  font-size: 12px;
}

.page-faq .faq-hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-panel);
}

/* ===== 问答终端布局 ===== */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 40px 0 64px;
}

/* ===== 分类目录 ===== */
.page-faq .faq-catalog {
  align-self: start;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.page-faq .faq-catalog-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--dim);
}

.page-faq .faq-catalog-hint {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0;
  color: var(--dim);
}

.page-faq .catalog-list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .catalog-list::-webkit-scrollbar {
  display: none;
}

.page-faq .catalog-list li {
  flex-shrink: 0;
}

.page-faq .catalog-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--bg);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--dim);
  text-decoration: none;
  white-space: nowrap;
  transition: color 120ms ease, border-color 120ms ease, background 120ms ease, transform 120ms ease;
}

.page-faq .catalog-link:hover,
.page-faq .catalog-link:focus-visible {
  color: var(--gold-light);
  border-color: rgba(242, 169, 0, 0.45);
  background: rgba(242, 169, 0, 0.06);
  transform: translateY(-1px);
}

.page-faq .catalog-count {
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: var(--line);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
}

.page-faq .catalog-foot {
  display: none;
}

/* ===== 问题区块 ===== */
.page-faq .faq-content {
  min-width: 0;
}

.page-faq .faq-section {
  margin-bottom: 40px;
  scroll-margin-top: 96px;
}

.page-faq .faq-section:target .section-head h2 {
  color: var(--gold-light);
  text-decoration: underline;
  text-decoration-color: rgba(242, 169, 0, 0.6);
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

.page-faq .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin-bottom: 18px;
}

.page-faq .section-head .mono-label {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1.2;
  color: var(--text);
}

.page-faq .section-head p {
  flex-basis: 100%;
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--dim);
}

/* ===== 折叠面板 ===== */
.page-faq .faq-item {
  margin-bottom: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(242, 169, 0, 0.45);
  box-shadow: 0 0 0 3px rgba(242, 169, 0, 0.06);
  animation: faqGoldFlash 180ms ease;
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
  border-radius: var(--radius-md);
}

.page-faq .faq-q {
  line-height: 1.5;
}

.page-faq .faq-toggle {
  position: relative;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  transition: transform 160ms ease, border-color 160ms ease;
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--gold);
  border-radius: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-toggle::before {
  width: 10px;
  height: 2px;
}

.page-faq .faq-toggle::after {
  width: 2px;
  height: 10px;
}

.page-faq .faq-item[open] .faq-toggle {
  transform: rotate(180deg);
  border-color: rgba(242, 169, 0, 0.5);
}

.page-faq .faq-item[open] .faq-toggle::after {
  opacity: 0;
}

/* 答案区：网格 sheet 线装饰 */
.page-faq .faq-a {
  padding: 0 20px 20px;
  border-top: 1px dashed var(--line-strong);
  font-size: 14px;
  line-height: 1.75;
  color: var(--dim);
  background-image:
    linear-gradient(rgba(44, 79, 143, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44, 79, 143, 0.12) 1px, transparent 1px);
  background-size: 20px 20px;
}

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

.page-faq .faq-a .btn {
  margin-top: 16px;
}

.page-faq .faq-list-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-faq .faq-list-inner li {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--line);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
}

/* ===== 小屏适配内部布局 ===== */
.page-faq .faq-mobile-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-mobile-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-strong);
}

.page-faq .faq-mobile-media::after {
  content: "小屏优先";
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: rgba(11, 29, 58, 0.8);
  border: 1px solid rgba(242, 169, 0, 0.35);
  color: var(--gold-light);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-faq .faq-mobile-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ===== 检索范围卡 ===== */
.page-faq .faq-search-scope {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  padding: 18px 20px;
  background: linear-gradient(135deg, rgba(123, 44, 191, 0.14), rgba(242, 169, 0, 0.06));
  border: 1px solid rgba(181, 123, 255, 0.25);
  border-radius: var(--radius-md);
}

.page-faq .search-scope-icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid rgba(242, 169, 0, 0.35);
  color: var(--gold);
}

.page-faq .search-scope-copy {
  min-width: 0;
}

.page-faq .search-scope-copy .mono-label {
  display: block;
  margin-bottom: 4px;
  color: var(--violet-mist);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .search-scope-copy p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--dim);
}

/* ===== 底部 CTA ===== */
.page-faq .faq-cta {
  padding: 0 0 72px;
}

.page-faq .faq-cta-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 32px;
  background:
    radial-gradient(ellipse at 85% 20%, rgba(242, 169, 0, 0.10), transparent 55%),
    var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.page-faq .faq-cta .mono-label {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .faq-cta h2 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--text);
}

.page-faq .faq-cta p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--dim);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-cta-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease, transform 120ms ease;
}

.page-faq .faq-cta-actions .btn-gold {
  background: var(--gold);
  color: var(--bg);
}

.page-faq .faq-cta-actions .btn-gold:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
}

.page-faq .faq-cta-actions .btn-ghost {
  border: 1px solid var(--line-strong);
  color: var(--text);
}

.page-faq .faq-cta-actions .btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold-light);
  transform: translateY(-2px);
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 40px 0 64px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: center;
    gap: 48px;
  }

  .page-faq .faq-shell {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 48px;
    padding: 56px 0 80px;
  }

  .page-faq .faq-catalog {
    position: sticky;
    top: 96px;
    padding: 24px;
  }

  .page-faq .catalog-list {
    flex-direction: column;
    overflow: visible;
  }

  .page-faq .catalog-list li {
    flex-shrink: 1;
  }

  .page-faq .catalog-link {
    display: flex;
    width: 100%;
    white-space: normal;
  }

  .page-faq .catalog-foot {
    display: block;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
    text-align: right;
    color: var(--dim);
    font-size: 11px;
  }

  .page-faq .faq-mobile-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
    gap: 24px;
  }

  .page-faq .faq-mobile-media {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-cta-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 40px 48px;
  }
}

@keyframes faqGoldFlash {
  0% {
    border-color: transparent;
    box-shadow: 0 0 0 0 rgba(242, 169, 0, 0);
  }
  100% {
    border-color: rgba(242, 169, 0, 0.45);
    box-shadow: 0 0 0 3px rgba(242, 169, 0, 0.06);
  }
}