.page-faq {
  --faq-panel-bg: rgba(10, 31, 68, 0.55);
  --faq-border-soft: rgba(74, 111, 165, 0.3);
  --faq-border-line: rgba(74, 111, 165, 0.16);
  background: var(--gradient-bg);
  color: var(--color-white);
  padding-bottom: var(--space-8);
}

.page-faq .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== 顶部横幅 ===== */
.page-faq .faq-hero {
  position: relative;
  padding: var(--space-6) 0 var(--space-4);
  background: linear-gradient(135deg, rgba(0, 229, 160, 0.06) 0%, transparent 55%),
    linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-deep) 100%);
  border-bottom: 1px solid var(--color-line);
}

.page-faq .faq-hero::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--color-neon) 0%, var(--color-orange) 65%, transparent 100%);
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: var(--space-5);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  align-items: center;
}

.page-faq .faq-hero__content .eyebrow {
  margin-bottom: var(--space-2);
}

.page-faq .faq-hero__content h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 4vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-3);
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  max-width: 620px;
  margin-top: 0;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 1rem;
  line-height: 1.85;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-line);
}

.page-faq .faq-hero__stats span {
  color: var(--color-muted);
  font-size: 0.875rem;
  line-height: 1.4;
}

.page-faq .faq-hero__stats .data-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-neon);
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__media {
  width: 160px;
  max-width: 100%;
  margin: 0 auto;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid rgba(0, 229, 160, 0.35);
  background: var(--color-secondary);
  box-shadow: 0 0 0 8px rgba(0, 229, 160, 0.04);
}

.page-faq .faq-hero__media img {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== 搜索栏 ===== */
.page-faq .faq-search {
  margin-top: var(--space-5);
}

.page-faq .faq-search__box {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-line);
  border-radius: calc(var(--radius) + 4px);
  background: rgba(30, 58, 95, 0.72);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.page-faq .faq-search__box:focus-within {
  border-color: var(--color-neon);
  box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.16);
}

.page-faq .faq-search__icon {
  width: 22px;
  height: 22px;
  color: var(--color-neon);
  flex: none;
}

.page-faq .faq-search__box input[type="search"] {
  flex: 1;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
}

.page-faq .faq-search__box input[type="search"]::placeholder {
  color: var(--color-muted);
  opacity: 1;
}

.page-faq .faq-search__box input[type="search"]::-webkit-search-cancel-button {
  cursor: pointer;
}

.page-faq .faq-search__box input[type="search"]:focus {
  outline: none;
}

.page-faq .faq-search__hint {
  margin: var(--space-3) 0 0;
  color: var(--color-muted);
  font-size: 0.875rem;
  text-align: center;
}

/* ===== 双栏布局 ===== */
.page-faq .faq-main {
  margin-top: var(--space-6);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  align-items: start;
}

/* ===== 左侧分类面板 ===== */
.page-faq .faq-cats__panel {
  background: var(--faq-panel-bg);
  border: 1px solid var(--faq-border-soft);
  border-radius: var(--radius);
  padding: var(--space-5);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
}

.page-faq .faq-cats__status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-3);
  border-bottom: 1px dashed rgba(74, 111, 165, 0.28);
  color: var(--color-muted);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
}

.page-faq .faq-cats__badge {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-neon);
  box-shadow: 0 0 8px rgba(0, 229, 160, 0.75);
}

.page-faq .faq-cats__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 var(--space-3);
  color: var(--color-white);
  letter-spacing: 0.02em;
}

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

.page-faq .faq-cats__list li + li {
  border-top: 1px solid var(--faq-border-line);
}

.page-faq .faq-cats__list a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-2);
  color: var(--color-muted);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: calc(var(--radius) - 4px);
  transition: color var(--transition), background-color var(--transition), padding-left var(--transition);
}

.page-faq .faq-cats__list a:hover,
.page-faq .faq-cats__list a:focus-visible {
  color: var(--color-neon);
  background: rgba(0, 229, 160, 0.06);
  padding-left: var(--space-3);
  outline: none;
}

.page-faq .faq-cats__icon {
  width: 20px;
  height: 20px;
  flex: none;
  color: var(--color-accent);
  transition: color var(--transition);
}

.page-faq .faq-cats__list a:hover .faq-cats__icon,
.page-faq .faq-cats__list a:focus-visible .faq-cats__icon {
  color: var(--color-neon);
}

.page-faq .faq-cats__note {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: rgba(255, 107, 26, 0.08);
  border-left: 3px solid var(--color-orange);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.page-faq .faq-cats__note p {
  margin: 0 0 var(--space-2);
  color: var(--color-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* ===== 右侧问答 ===== */
.page-faq .faq-answers {
  display: grid;
  gap: var(--space-6);
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + var(--space-4));
}

.page-faq .faq-group__head {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-line);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-2);
}

.page-faq .faq-group__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 7px;
  border: 1px solid rgba(0, 229, 160, 0.4);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--color-neon);
  background: rgba(0, 229, 160, 0.06);
}

.page-faq .faq-group__desc {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-faq .faq-group__img {
  margin-bottom: var(--space-4);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-secondary);
}

.page-faq .faq-group__img img {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== 手风琴 ===== */
.page-faq .faq-item {
  border: 1px solid var(--faq-border-soft);
  border-radius: var(--radius);
  background: rgba(13, 27, 42, 0.6);
  margin-bottom: var(--space-3);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.page-faq .faq-item:hover {
  border-color: rgba(0, 229, 160, 0.45);
}

.page-faq .faq-item[open] {
  border-color: rgba(0, 229, 160, 0.6);
  box-shadow: 0 0 0 1px rgba(0, 229, 160, 0.12);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4);
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-white);
  list-style: none;
  user-select: none;
  transition: background-color var(--transition), color var(--transition);
}

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

.page-faq .faq-item summary:hover {
  background: rgba(0, 229, 160, 0.05);
  color: var(--color-neon);
}

.page-faq .faq-item summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--color-neon);
  border-bottom: 2px solid var(--color-neon);
  transform: rotate(45deg);
  margin-top: -4px;
  transition: transform var(--transition), border-color var(--transition);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 4px;
}

.page-faq .faq-item__body {
  padding: var(--space-3) var(--space-4) var(--space-4);
  color: var(--color-muted);
  border-top: 1px solid rgba(10, 31, 68, 0.2);
  background: rgba(74, 111, 165, 0.05);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.page-faq .faq-item__body p {
  margin: 0;
}

.page-faq .faq-item__body a {
  color: var(--color-neon);
  text-decoration-color: rgba(0, 229, 160, 0.4);
  text-underline-offset: 3px;
  transition: color var(--transition), text-decoration-color var(--transition);
}

.page-faq .faq-item__body a:hover {
  color: var(--color-neon-bright);
  text-decoration-color: var(--color-neon-bright);
}

/* ===== 联系支持 ===== */
.page-faq .faq-support {
  margin-top: var(--space-6);
  padding: var(--space-6) 0 0;
}

.page-faq .faq-support__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--faq-border-soft);
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.07) 0%, rgba(13, 27, 42, 0.85) 55%);
}

.page-faq .faq-support__info h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-2);
}

.page-faq .faq-support__info p {
  margin: 0 0 var(--space-2);
  color: var(--color-muted);
  line-height: 1.8;
  font-size: 0.9375rem;
}

.page-faq .faq-support__contact-line {
  margin-top: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--faq-border-line);
  color: var(--color-accent) !important;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.page-faq .faq-support__actions .btn {
  white-space: nowrap;
}

/* ===== 桌面端增强 ===== */
@media (min-width: 720px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 1fr 220px;
    gap: var(--space-6);
  }

  .page-faq .faq-hero__media {
    width: 200px;
    margin-right: 0;
    margin-left: auto;
  }

  .page-faq .faq-support__panel {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: var(--space-5);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: var(--space-6);
  }

  .page-faq .faq-cats {
    position: sticky;
    top: calc(var(--header-h) + var(--space-4));
  }

  .page-faq .faq-cats__panel {
    padding: var(--space-5);
  }

  .page-faq .faq-search__box {
    max-width: 720px;
    margin: 0 auto;
  }

  .page-faq .faq-search__hint {
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
  }
}