.page-faq {
  background: var(--hh-night);
  color: var(--hh-ink);
  overflow-x: clip;
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

.page-faq .faq-crumb {
  padding-top: clamp(1rem, 3vw, 1.75rem);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(1.75rem, 5vw, 3.5rem) clamp(1.5rem, 4vw, 3rem);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.page-faq .faq-hero__title {
  font-family: var(--hh-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 6vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0.5rem 0 1rem;
  max-width: 18ch;
}

.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: clamp(3rem, 8vw, 6rem);
  height: 4px;
  margin-top: 1.1rem;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--hh-orange), var(--hh-blue) 55%, transparent);
}

.page-faq .faq-hero__text .hh-lead {
  max-width: 46ch;
  color: var(--hh-ink-dim);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem 1.75rem;
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
}

.page-faq .faq-hero__stat {
  min-width: 6rem;
}

.page-faq .faq-num {
  display: block;
  font-family: var(--hh-mono);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--hh-snow);
}

.page-faq .faq-num__cap {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.8rem;
  color: var(--hh-ink-mute);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__media {
  border-radius: var(--hh-radius);
  border: 1px solid var(--hh-line);
  overflow: hidden;
  box-shadow: var(--hh-shadow);
}

.page-faq .faq-hero__media .hh-media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: clamp(1rem, 3vw, 2rem);
}

/* ---------- 左侧分类轨 ---------- */
.page-faq .faq-rail__title {
  margin: 0 0 0.75rem;
  font-family: var(--hh-mono);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--hh-ink-mute);
}

.page-faq .faq-rail__nav {
  display: flex;
  flex-direction: row;
  gap: 0.25rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: thin;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex: 0 0 auto;
  padding: 0.5rem 0.65rem;
  white-space: nowrap;
  font-size: 0.9rem;
  color: var(--hh-ink-dim);
  text-decoration: none;
  border-bottom: 2px solid var(--hh-line);
  transition: color 0.22s var(--hh-ease), border-color 0.22s var(--hh-ease),
    background-color 0.22s var(--hh-ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--hh-snow);
  border-bottom-color: var(--hh-blue);
  background-color: var(--hh-glass);
}

.page-faq .faq-rail__num {
  font-family: var(--hh-mono);
  font-size: 0.72rem;
  color: var(--hh-silver);
}

/* ---------- 右侧问答流 ---------- */
.page-faq .faq-cat {
  scroll-margin-top: 6rem;
}

.page-faq .faq-cat + .faq-cat {
  margin-top: clamp(2rem, 6vw, 4rem);
  padding-top: clamp(2rem, 6vw, 4rem);
  border-top: 1px solid var(--hh-line);
}

.page-faq .faq-cat__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.35rem 0.85rem;
  align-items: baseline;
  margin-bottom: 0.75rem;
}

.page-faq .faq-cat__num {
  font-family: var(--hh-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--hh-blue);
}

.page-faq .faq-cat--content .faq-cat__num {
  color: var(--hh-orange);
}

.page-faq .faq-cat--data .faq-cat__num {
  color: var(--hh-green);
}

.page-faq .faq-cat--rank .faq-cat__num {
  color: var(--hh-yellow);
}

.page-faq .faq-cat--account .faq-cat__num {
  color: var(--hh-red);
}

.page-faq .faq-cat--support .faq-cat__num {
  color: var(--hh-silver);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-faq .faq-cat__desc {
  grid-column: 1 / -1;
  margin: 0.25rem 0 1rem;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--hh-ink-dim);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-q {
  border-bottom: 1px solid var(--hh-line);
}

.page-faq .faq-q .hh-fold__summary {
  list-style: none;
  position: relative;
  padding: 0.95rem 2.2rem 0.95rem 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--hh-snow);
  cursor: pointer;
  transition: color 0.2s var(--hh-ease);
}

.page-faq .faq-q .hh-fold__summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-q .hh-fold__summary::after {
  content: "+";
  position: absolute;
  right: 0.35rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--hh-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--hh-silver);
  transition: color 0.2s var(--hh-ease), transform 0.25s var(--hh-ease);
}

.page-faq .faq-q .hh-fold__summary:hover {
  color: var(--hh-blue);
}

.page-faq .faq-q[open] .hh-fold__summary::after {
  content: "–";
  color: var(--hh-orange);
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .faq-q[open] .hh-fold__summary {
  color: var(--hh-snow);
}

.page-faq .faq-q .hh-fold__body {
  padding: 0 0 1.15rem;
  max-width: 68ch;
  color: var(--hh-ink-dim);
  font-size: 0.95rem;
  line-height: 1.8;
}

.page-faq .faq-q .hh-fold__body p {
  margin: 0;
}

.page-faq .faq-q .hh-fold__body a {
  color: var(--hh-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-q .hh-fold__body a:hover {
  color: var(--hh-orange);
}

/* ---------- 排名两步查找 ---------- */
.page-faq .faq-rank {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.1rem, 3vw, 1.75rem);
  margin-bottom: 1.25rem;
}

.page-faq .faq-rank__media {
  border-radius: var(--hh-radius);
  border: 1px solid var(--hh-line);
  overflow: hidden;
}

.page-faq .faq-rank__media .hh-media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.page-faq .faq-step {
  position: relative;
  padding: 1rem 1.1rem 1.05rem;
  border: 1px solid var(--hh-line);
  border-left: 3px solid var(--hh-yellow);
  border-radius: var(--hh-radius);
  background: var(--hh-glass);
}

.page-faq .faq-step__num {
  margin: 0;
  font-family: var(--hh-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--hh-yellow);
}

.page-faq .faq-step__title {
  margin: 0.4rem 0 0.35rem;
  font-size: 1.05rem;
  color: var(--hh-snow);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--hh-ink-dim);
}

/* ---------- 联系支持面板 ---------- */
.page-faq .faq-support {
  padding: clamp(1.25rem, 4vw, 2.25rem);
  border: 1px solid var(--hh-line);
  border-radius: var(--hh-radius);
  background:
    radial-gradient(120% 140% at 88% 0%, rgba(46, 125, 209, 0.22), transparent 62%),
    linear-gradient(180deg, rgba(244, 247, 251, 0.05), rgba(7, 17, 38, 0.6)),
    var(--hh-midnight);
}

.page-faq .faq-support__kv .hh-kv__row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  padding: 0.65rem 0;
  border-bottom: 1px dashed var(--hh-line);
}

.page-faq .faq-support__kv .hh-kv__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-support__kv .hh-kv__k {
  flex: 0 0 5.5rem;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--hh-ink-mute);
}

.page-faq .faq-support__kv .hh-kv__v {
  flex: 1 1 12rem;
  font-family: var(--hh-mono);
  font-size: 0.95rem;
  color: var(--hh-snow);
  word-break: break-word;
}

.page-faq .faq-support__note {
  margin: 1.1rem 0 0;
  max-width: 62ch;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--hh-ink-mute);
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: center;
  }

  .page-faq .faq-hero__stat + .faq-hero__stat {
    padding-left: 1.75rem;
    border-left: 1px solid var(--hh-line);
  }

  .page-faq .faq-rank {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 6.5rem;
  }

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

  .page-faq .faq-rail__link {
    white-space: normal;
    border-bottom: 0;
    border-left: 2px solid var(--hh-line);
    padding: 0.55rem 0.75rem;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-bottom-color: transparent;
    border-left-color: var(--hh-blue);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail__link,
  .page-faq .faq-q .hh-fold__summary,
  .page-faq .faq-q .hh-fold__summary::after {
    transition: none;
  }
}