.page-faq {
  overflow-x: clip;
  background: var(--bg-deep);
}

/* ---- 面包屑 ---- */
.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-size: 14px;
}
.page-faq .crumb-link {
  color: var(--color-text-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.page-faq .crumb-link:hover,
.page-faq .crumb-link:focus-visible {
  color: var(--color-primary);
  outline: none;
}
.page-faq .crumb-sep {
  color: var(--color-border);
}
.page-faq .crumb-current {
  color: var(--color-text);
  font-weight: 600;
}

/* ---- 首屏 ---- */
.page-faq .faq-hero {
  position: relative;
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 18%, rgba(0, 200, 255, 0.1), transparent 320px),
    linear-gradient(135deg, var(--bg-panel) 0%, var(--bg-deep) 72%);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 34%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 0 4px 4px 0;
}
.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
  padding: 34px 0 48px;
}
@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 48px;
    padding: 52px 0 76px;
  }
}
.page-faq .faq-hero-lead {
  max-width: 44em;
  margin: 16px 0 0;
  color: var(--color-text-dim);
  font-size: 17px;
  line-height: 1.75;
}
.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin-top: 26px;
}
.page-faq .hero-meta-item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}
.page-faq .hero-meta-item .mono {
  color: var(--color-accent);
  font-size: 17px;
  font-weight: 700;
}
.page-faq .hero-meta-label {
  color: var(--color-text-dim);
  font-size: 13px;
}
.page-faq .faq-hero-cta {
  margin-top: 28px;
  display: inline-flex;
}

/* ---- 首屏视觉 ---- */
.page-faq .faq-hero-visual {
  position: relative;
  margin: 0;
}
.page-faq .faq-hero-visual::before {
  content: "";
  position: absolute;
  inset: 10% 6% -6% -2%;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  opacity: 0.5;
  transform: rotate(-1.4deg);
  pointer-events: none;
}
.page-faq .faq-hero-visual::after {
  content: "";
  position: absolute;
  width: 64px;
  height: 64px;
  right: -8px;
  top: -8px;
  border-top: 2px solid var(--color-accent);
  border-right: 2px solid var(--color-accent);
  border-radius: 0 var(--radius) 0 0;
}
.page-faq .faq-hero-img {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--color-border), 0 18px 46px rgba(0, 0, 0, 0.35);
}

/* ---- 主体双栏 ---- */
.page-faq .faq-main-section {
  padding: 48px 0 36px;
}
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

/* ---- 左侧分类索引 ---- */
.page-faq .faq-category-panel {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--bg-panel);
  padding: 22px 20px 26px;
  overflow: hidden;
}
@media (min-width: 960px) {
  .page-faq .faq-category-panel {
    position: sticky;
    top: calc(var(--header-h-shrunk) + 24px);
  }
}
.page-faq .faq-category-title {
  margin: 0 0 4px;
  color: var(--color-text);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.page-faq .faq-category-note {
  margin: 0 0 18px;
  color: var(--color-text-dim);
  font-size: 13px;
}
.page-faq .faq-category-list {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  position: relative;
  z-index: 1;
}
.page-faq .faq-cat-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  color: var(--color-text);
  background: var(--bg-nested);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s, padding-left 0.2s, color 0.2s;
}
.page-faq .faq-cat-link:hover,
.page-faq .faq-cat-link:focus-visible {
  border-color: var(--color-primary);
  background: rgba(0, 200, 255, 0.08);
  padding-left: 16px;
  color: var(--color-primary);
  outline: none;
}
.page-faq .faq-cat-link.is-active {
  border-color: var(--color-primary);
  box-shadow: inset 3px 0 0 var(--color-primary);
}
.page-faq .faq-cat-link .idx {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--color-primary);
  letter-spacing: 0.06em;
}
.page-faq .faq-cat-name {
  flex: 1;
  font-size: 14px;
  font-weight: 600;
}
.page-faq .faq-cat-arrow {
  color: var(--color-border);
  font-size: 14px;
  transition: color 0.2s, transform 0.2s;
}
.page-faq .faq-cat-link:hover .faq-cat-arrow,
.page-faq .faq-cat-link:focus-visible .faq-cat-arrow {
  color: var(--color-primary);
  transform: translateX(4px);
}
.page-faq .faq-category-symbol {
  position: absolute;
  right: -32px;
  bottom: -34px;
  width: 190px;
  height: 190px;
  color: var(--color-primary);
  opacity: 0.1;
  pointer-events: none;
}

/* ---- 右侧内容 ---- */
.page-faq .faq-content-panel {
  min-width: 0;
}
.page-faq .faq-content-panel .section-head {
  margin-bottom: 8px;
  scroll-margin-top: 90px;
}
.page-faq .faq-group {
  --group-color: var(--color-primary);
  margin-top: 30px;
  padding-top: 8px;
  border-top: 1px solid var(--color-border);
  scroll-margin-top: 90px;
}
.page-faq .faq-group-nav {
  --group-color: var(--color-accent);
}
.page-faq .faq-group-sync {
  --group-color: var(--color-primary);
}
.page-faq .faq-group-delay {
  --group-color: var(--color-warm);
}
.page-faq .faq-group-contact {
  --group-color: var(--color-accent);
}
.page-faq .faq-group-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 10px 0 4px;
  font-size: 20px;
  color: var(--color-text);
}
.page-faq .faq-group-index {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--group-color);
  letter-spacing: 0.06em;
}
.page-faq .faq-group-name {
  font-weight: 800;
}
.page-faq .faq-group-count {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--color-text-dim);
  white-space: nowrap;
}

/* ---- 折叠面板 ---- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--color-border);
}
.page-faq .faq-item:last-child {
  border-bottom: none;
}
.page-faq .faq-item[open] {
  border-bottom-color: var(--group-color);
}
@media (min-width: 960px) {
  .page-faq .faq-group .faq-item + .faq-item {
    margin-left: 18px;
  }
  .page-faq .faq-item[open] {
    padding-left: 12px;
    border-left: 3px solid var(--group-color);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  }
}
.page-faq .faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 4px;
  list-style: none;
  cursor: pointer;
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.5;
  font-weight: 700;
  transition: color 0.2s;
}
.page-faq .faq-question::marker {
  content: "";
}
.page-faq .faq-question::-webkit-details-marker {
  display: none;
}
.page-faq .faq-question:hover {
  color: var(--color-primary);
}
.page-faq .faq-question:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
  border-radius: var(--radius-sm);
}
.page-faq .faq-question-text {
  flex: 1;
}
.page-faq .faq-question-icon {
  position: relative;
  display: inline-block;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  transition: border-color 0.2s;
}
.page-faq .faq-question:hover .faq-question-icon {
  border-color: var(--color-primary);
}
.page-faq .faq-question-icon::before,
.page-faq .faq-question-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform 0.25s ease, opacity 0.2s ease;
}
.page-faq .faq-question-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.page-faq .faq-item[open] .faq-question-icon::after {
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
}
.page-faq .faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.32s ease;
}
.page-faq .faq-item[open] .faq-answer {
  grid-template-rows: 1fr;
}
.page-faq .faq-answer-inner {
  overflow: hidden;
  padding-right: 24px;
  color: var(--color-text-dim);
  font-size: 15px;
  line-height: 1.7;
}
.page-faq .faq-answer-inner p {
  margin: 0;
  padding: 0 0 18px;
}

/* ---- 更多链接 ---- */
.page-faq .faq-more-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid var(--color-border);
}

/* ---- 联系支持 ---- */
.page-faq .faq-contact-section {
  padding: 56px 0 64px;
  background:
    linear-gradient(120deg, rgba(0, 200, 255, 0.06), transparent 46%),
    var(--bg-panel);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
@media (min-width: 860px) {
  .page-faq .faq-contact-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 56px;
  }
}
.page-faq .faq-contact-copy .section-head {
  margin-bottom: 20px;
}
.page-faq .faq-contact-list {
  display: grid;
  gap: 12px;
  margin: 0 0 20px;
  padding: 0;
}
.page-faq .faq-contact-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-deep);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-sm);
}
.page-faq .faq-contact-item dt {
  color: var(--color-text-dim);
  font-size: 14px;
}
.page-faq .faq-contact-item dd {
  margin: 0;
  color: var(--color-text);
  font-size: 15px;
  word-break: break-all;
}
.page-faq .faq-contact-item .mono {
  font-family: var(--font-data);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.page-faq .faq-contact-note {
  margin: 8px 0 14px;
  padding: 12px 14px;
  color: var(--color-text-dim);
  font-size: 14px;
  line-height: 1.7;
  background: rgba(0, 255, 159, 0.06);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.page-faq .faq-trust-line {
  margin: 0 0 14px;
  padding: 12px 14px;
  color: var(--color-text-dim);
  font-size: 13px;
  line-height: 1.7;
  background: var(--bg-deep);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}
.page-faq .faq-privacy-link {
  display: inline-block;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s;
}
.page-faq .faq-privacy-link:hover,
.page-faq .faq-privacy-link:focus-visible {
  color: var(--color-accent);
  outline: none;
}
.page-faq .faq-contact-visual {
  position: relative;
  margin: 0;
}
.page-faq .faq-contact-visual img {
  position: relative;
  z-index: 1;
  display: block;
  max-width: 420px;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px var(--color-border);
}
.page-faq .faq-contact-visual::after {
  content: "";
  position: absolute;
  top: -10px;
  right: -10px;
  bottom: 18px;
  left: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: left 0.2s, top 0.2s;
}
@media (min-width: 600px) and (max-width: 859px) {
  .page-faq .faq-contact-visual {
    margin-left: 10%;
  }
}
@media (min-width: 960px) {
  .page-faq .faq-contact-visual::after {
    left: 24px;
  }
}