.page-faq {
  --faq-sidebar-w: 280px;
  --faq-hero-h: 420px;
  --faq-gap: clamp(24px, 4vw, 64px);
  color: var(--c-gray);
  background:
    radial-gradient(circle at 85% 10%, rgba(0, 255, 136, 0.08), transparent 32%),
    radial-gradient(circle at 10% 80%, rgba(255, 106, 0, 0.06), transparent 28%),
    var(--c-dark);
}

.page-faq .faq-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: clamp(340px, 70vw, var(--faq-hero-h));
  overflow: hidden;
  background: linear-gradient(120deg, var(--c-dark) 0%, var(--c-primary) 52%, #152B44 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 48px), 0 100%);
}

.page-faq .faq-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  filter: saturate(0.75) contrast(1.15);
}

.page-faq .faq-hero__content {
  position: relative;
  z-index: 1;
  padding-top: clamp(32px, 7vw, 72px);
  padding-bottom: clamp(48px, 8vw, 80px);
}

.page-faq .breadcrumb {
  margin-bottom: 22px;
}

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

.page-faq .breadcrumb__link {
  color: var(--c-accent);
  text-decoration: none;
  font-size: 0.85rem;
  font-family: var(--font-data);
}

.page-faq .breadcrumb__link:hover {
  text-decoration: underline;
}

.page-faq .breadcrumb__current {
  color: var(--c-light);
  font-size: 0.85rem;
  font-family: var(--font-data);
  opacity: 0.8;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 8vw, 4.6rem);
  line-height: 0.98;
  color: var(--c-light);
  margin: 0 0 16px;
  max-width: 13em;
}

.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: 76px;
  height: 6px;
  background: var(--c-accent);
  transform: skewX(-18deg);
  margin-top: 16px;
}

.page-faq .faq-hero__desc {
  max-width: 54em;
  margin: 0;
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: var(--c-gray);
}

.page-faq .faq-hero__link {
  display: inline-block;
  margin-top: 20px;
  font-weight: 700;
  color: var(--c-accent);
  text-decoration: none;
  border-bottom: 2px solid currentColor;
  transition: opacity var(--transition), transform var(--transition);
}

.page-faq .faq-hero__link:hover {
  opacity: 0.75;
  transform: translateX(4px);
}

.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.page-faq .faq-tag {
  padding: 6px 12px;
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--c-light);
  background: rgba(36, 59, 85, 0.55);
  border: 1px solid rgba(0, 255, 136, 0.35);
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.page-faq .faq-tag:hover {
  background: var(--c-accent);
  color: var(--c-dark);
  border-color: var(--c-accent);
}

.page-faq .faq-main {
  position: relative;
  padding-top: clamp(48px, 8vw, 96px);
  padding-bottom: clamp(64px, 10vw, 120px);
  background:
    linear-gradient(160deg, rgba(255, 106, 0, 0.03) 0%, transparent 35%),
    transparent;
}

.page-faq .section-head {
  margin-bottom: clamp(24px, 5vw, 48px);
}

.page-faq .section-caption {
  display: block;
  font-family: var(--font-data);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 10px;
}

.page-faq .section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--c-light);
  margin: 0;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

.page-faq .faq-sidebar__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--c-light);
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.page-faq .faq-cat-list {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 4px 12px;
  margin: 0 0 24px;
  list-style: none;
  scrollbar-width: thin;
  scrollbar-color: var(--c-accent) var(--c-card);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-cat-item {
  flex: 0 0 auto;
}

.page-faq .faq-cat-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--c-card);
  color: var(--c-light);
  text-decoration: none;
  border-left: 3px solid transparent;
  white-space: nowrap;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.page-faq .faq-cat-link:hover,
.page-faq .faq-cat-link:focus {
  background: var(--c-primary);
  border-left-color: var(--c-accent);
  color: var(--c-accent);
}

.page-faq .faq-cat-code {
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--c-accent);
}

.page-faq .faq-sidebar__note {
  margin-top: 24px;
  padding: 18px 16px;
  background: rgba(36, 59, 85, 0.7);
  border: 1px solid rgba(0, 255, 136, 0.2);
  border-left: 4px solid var(--c-accent);
}

.page-faq .faq-note-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--c-light);
  margin: 0 0 6px;
}

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

.page-faq .faq-hot {
  margin-bottom: 36px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(0, 255, 136, 0.15);
}

.page-faq .faq-hot__title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--c-accent);
  margin: 0 0 4px;
  letter-spacing: 0.05em;
}

.page-faq .faq-hot__desc {
  margin: 0;
  color: var(--c-gray);
  font-size: 0.9rem;
}

.page-faq .faq-category {
  scroll-margin-top: calc(var(--header-h) + 24px);
  margin-top: 40px;
}

.page-faq .faq-category:first-of-type {
  margin-top: 0;
}

.page-faq .faq-category__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  color: var(--c-light);
  margin: 0 0 6px;
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: 0.03em;
}

.page-faq .faq-category__title::before {
  content: "";
  width: 6px;
  height: 24px;
  background: var(--c-accent);
  transform: skewX(-18deg);
  flex: 0 0 6px;
}

.page-faq .faq-category__lead {
  margin: 0 0 18px;
  color: var(--c-gray);
  border-left: 3px solid rgba(255, 106, 0, 0.6);
  padding-left: 14px;
  font-size: 0.95rem;
}

.page-faq .qa-panel {
  margin-bottom: 12px;
  background: rgba(36, 59, 85, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-left: 3px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}

.page-faq .qa-panel[open] {
  background: rgba(26, 46, 69, 0.9);
  border-left-color: var(--c-accent);
}

.page-faq .qa-panel summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 18px 20px;
  font-weight: 600;
  color: var(--c-light);
  font-size: 1rem;
  transition: color var(--transition), background var(--transition);
}

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

.page-faq .qa-panel summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: var(--c-accent);
  font-family: var(--font-data);
  transition: color var(--transition), transform var(--transition);
}

.page-faq .qa-panel[open] summary::after {
  content: "–";
  color: var(--c-accent-2);
  transform: translateY(-50%) rotate(180deg);
}

.page-faq .qa-panel summary:hover {
  color: var(--c-accent);
}

.page-faq .qa-panel__body {
  padding: 0 20px 20px;
  color: var(--c-gray);
  font-size: 0.95rem;
  line-height: 1.65;
}

.page-faq .qa-panel__body p {
  margin: 0 0 8px;
}

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

@keyframes faq-fade-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .qa-panel[open] .qa-panel__body {
  animation: faq-fade-in 0.25s ease;
}

.page-faq .faq-flow {
  margin: 16px 0 8px;
  background: var(--c-card);
  padding: 12px;
  border: 1px solid rgba(0, 255, 136, 0.12);
  box-shadow: 8px 8px 0 var(--c-dark);
  position: relative;
}

.page-faq .faq-flow::after {
  content: "反馈流程 · 提交 / 分级 / 响应";
  position: absolute;
  right: 12px;
  bottom: 18px;
  font-family: var(--font-data);
  font-size: 0.7rem;
  color: var(--c-light);
  background: rgba(14, 23, 38, 0.8);
  padding: 4px 8px;
  letter-spacing: 0.06em;
}

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

.page-faq .faq-unresolved {
  position: relative;
  padding: clamp(56px, 10vw, 96px) 0;
  background:
    linear-gradient(120deg, rgba(0, 255, 136, 0.08), transparent 40%),
    var(--c-primary);
  border-top: 2px solid var(--c-accent);
  clip-path: polygon(0 24px, 100% 0, 100% 100%, 0 100%);
}

.page-faq .faq-unresolved__inner {
  text-align: center;
}

.page-faq .faq-unresolved__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.2rem);
  color: var(--c-light);
  margin: 0 0 12px;
}

.page-faq .faq-unresolved__desc {
  max-width: 540px;
  margin: 0 auto 24px;
  color: var(--c-gray);
  font-size: 1.05rem;
}

.page-faq .faq-unresolved__meta {
  display: grid;
  gap: 6px;
  max-width: 620px;
  margin: 0 auto 28px;
  padding: 18px 20px;
  background: rgba(14, 23, 38, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.06);
  list-style: none;
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--c-light);
  text-align: left;
}

.page-faq .faq-unresolved__meta li::before {
  content: "◈";
  color: var(--c-accent);
  margin-right: 8px;
}

.page-faq .faq-unresolved__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.page-faq .btn {
  display: inline-block;
  padding: 12px 24px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.page-faq .btn--primary {
  background: var(--c-accent);
  color: var(--c-dark);
  box-shadow: 0 0 16px rgba(0, 255, 136, 0.35);
}

.page-faq .btn--primary:hover {
  box-shadow: 0 0 26px rgba(0, 255, 136, 0.6);
  transform: translateY(-2px);
}

.page-faq .btn--outline {
  background: transparent;
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.page-faq .btn--outline:hover {
  background: var(--c-accent);
  color: var(--c-dark);
  transform: translateY(-2px);
}

@media (min-width: 992px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(240px, var(--faq-sidebar-w)) minmax(0, 1fr);
    align-items: start;
  }

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

  .page-faq .faq-cat-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
    margin-bottom: 0;
  }

  .page-faq .faq-cat-item {
    width: 100%;
    flex: none;
  }

  .page-faq .faq-cat-link {
    padding: 14px 16px;
    white-space: normal;
    margin-bottom: 6px;
  }

  .page-faq .faq-hero {
    min-height: 460px;
  }

  .page-faq .faq-hero__content {
    padding-bottom: 88px;
  }

  .page-faq .faq-flow img {
    max-height: 360px;
  }

  .page-faq .faq-unresolved__meta {
    grid-template-columns: repeat(2, 1fr);
    text-align: left;
  }
}