.page-faq {
  background: var(--ink-900);
  color: var(--paper);
}

.page-faq .faq-crumb {
  padding-top: 18px;
  padding-bottom: 4px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 24px 0 44px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 100% at 6% -12%, rgba(139, 92, 246, 0.18), transparent 56%),
    radial-gradient(90% 80% at 100% 0%, rgba(63, 216, 200, 0.10), transparent 58%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(35, 43, 61, 0.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(35, 43, 61, 0.55) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 4.6vw, 50px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  margin: 14px 0 0;
  color: var(--paper);
  max-width: 20ch;
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 55ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(20, 25, 38, 0.6);
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .faq-chip .mono {
  font-size: 11.5px;
  color: var(--violet);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  color: var(--cyan);
  border-color: rgba(63, 216, 200, 0.5);
  background: rgba(63, 216, 200, 0.07);
}

/* 快照面板 */
.page-faq .faq-snapshot {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  box-shadow: var(--inset);
  overflow: hidden;
}

.page-faq .faq-snapshot__head {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--ink-700);
}

.page-faq .faq-snapshot__tag {
  font-size: 11.5px;
  color: var(--moss);
  letter-spacing: 0.04em;
}

.page-faq .faq-snapshot__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-faq .faq-snapshot__cell {
  padding: 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-snapshot__cell:nth-child(2n) {
  border-right: 0;
}

.page-faq .faq-snapshot__cell:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.page-faq .faq-snapshot__num {
  display: block;
  font-family: var(--font-data);
  font-size: 24px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--amber);
  text-shadow: 0 0 14px rgba(233, 180, 76, 0.18);
}

.page-faq .faq-snapshot__label {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-snapshot__note {
  margin: 0;
  padding: 13px 16px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  padding: 36px 0 56px;
}

.page-faq .faq-toc {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-faq .faq-toc__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-toc__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 4px 8px 12px;
  border-left: 2px solid var(--line);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .faq-toc__link .mono {
  flex: none;
  font-size: 11.5px;
  color: var(--violet);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--paper);
  border-left-color: var(--cyan);
  background: rgba(63, 216, 200, 0.05);
}

/* 竖向蓝图线贯穿的问题流 */
.page-faq .faq-stream {
  display: grid;
  gap: 0;
}

.page-faq .faq-group {
  position: relative;
  padding: 0 0 42px 18px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-group:last-child {
  padding-bottom: 0;
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 8px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  background: var(--ink-900);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__index {
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--violet);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(19px, 2.5vw, 26px);
  letter-spacing: 0.04em;
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .faq-group__meta {
  margin-left: auto;
  font-size: 11.5px;
  color: var(--mist);
}

/* 图 */
.page-faq .faq-figure {
  position: relative;
  margin: 20px 0 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  overflow: hidden;
}

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

.page-faq .faq-figure .media-frame__cap {
  position: static;
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

/* 折叠答案 */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  box-shadow: var(--inset);
  transition: border-color 0.2s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(63, 216, 200, 0.42);
  box-shadow: inset 2px 0 0 var(--cyan), var(--inset);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 16px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
  transition: color 0.18s var(--ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover {
  color: var(--cyan);
}

.page-faq .faq-item__num {
  flex: none;
  padding-top: 2px;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--violet);
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--cyan);
}

.page-faq .faq-item__a {
  padding: 0 16px 18px 42px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

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

.page-faq .faq-item__a p + p {
  margin-top: 10px;
}

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 216, 200, 0.4);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

.page-faq .hl-amber {
  font-family: var(--font-data);
  color: var(--amber);
  letter-spacing: 0.02em;
}

.page-faq .faq-steps {
  display: grid;
  gap: 10px;
  margin: 12px 0 10px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.page-faq .faq-steps .mono {
  flex: none;
  padding-top: 2px;
  font-size: 11.5px;
  color: var(--orange);
  letter-spacing: 0.06em;
}

/* ---------- 底部求助条 ---------- */
.page-faq .faq-help {
  position: relative;
  border-top: 1px solid var(--line);
  background: var(--ink-800);
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 96px;
  height: 2px;
  background: var(--cyan);
}

.page-faq .faq-help__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  align-items: center;
  justify-content: space-between;
  padding: 32px 0 36px;
}

.page-faq .faq-help__title {
  margin: 10px 0 0;
  max-width: 42ch;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(19px, 2.4vw, 26px);
  letter-spacing: 0.03em;
  line-height: 1.35;
  color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 30px 0 56px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 56px;
    padding: 56px 0 72px;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--bar-h) + 22px);
    align-self: start;
  }

  .page-faq .faq-toc__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }
}

@media (max-width: 759px) {
  .page-faq .faq-hero {
    padding: 16px 0 34px;
  }

  .page-faq .faq-hero__title {
    max-width: none;
  }

  .page-faq .faq-snapshot__num {
    font-size: 21px;
  }

  .page-faq .faq-snapshot__cell {
    padding: 14px;
  }

  .page-faq .faq-group {
    padding-left: 14px;
  }

  .page-faq .faq-item__a {
    padding-left: 18px;
  }

  .page-faq .faq-help__inner {
    padding: 26px 0 30px;
  }

  .page-faq .faq-help__inner .btn {
    width: 100%;
    text-align: center;
  }
}