.page-faq {
  --faq-line: rgba(101, 242, 183, 0.16);
  --faq-soft: rgba(67, 87, 77, 0.55);
  background: var(--ink-900);
  color: var(--bone);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: clip;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: 0.01em;
  margin: 0;
}

.page-faq p { margin: 0; }
.page-faq ul,
.page-faq ol { list-style: none; margin: 0; padding: 0; }
.page-faq a { color: inherit; text-decoration: none; }

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 2.75rem 0 2.75rem;
  background:
    radial-gradient(88% 72% at 92% -14%, rgba(101, 242, 183, 0.16), transparent 62%),
    linear-gradient(180deg, #04120D 0%, var(--ink-900) 82%);
}

.page-faq .faq-hero .breadcrumbs { margin-bottom: 1.5rem; }

.page-faq .faq-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-faq .faq-hero h1 {
  margin-top: 0.85rem;
  font-size: clamp(2.4rem, 8.5vw, 4.8rem);
  max-width: 18ch;
}

.page-faq .faq-hero__lead {
  margin-top: 1.4rem;
  max-width: 62ch;
  font-size: clamp(0.98rem, 2.2vw, 1.1rem);
  color: rgba(239, 233, 218, 0.82);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2.25rem;
  margin-top: 2rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.page-faq .faq-hero__stats .data-num {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1;
  color: var(--mint);
}

.page-faq .faq-hero__stat-label {
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--ash);
}

.page-faq .faq-hero__slices {
  display: flex;
  gap: 5px;
  height: 8px;
  margin-top: 2.25rem;
}

.page-faq .faq-hero__slices span {
  height: 100%;
  transform: skewX(-24deg);
  border-radius: 1px;
}

.page-faq .faq-hero__slices span:nth-child(1) { flex: 6; background: var(--mint); }
.page-faq .faq-hero__slices span:nth-child(2) { flex: 3; background: var(--amber); }
.page-faq .faq-hero__slices span:nth-child(3) { flex: 2; background: var(--violet); }
.page-faq .faq-hero__slices span:nth-child(4) { flex: 4; background: var(--moss); }
.page-faq .faq-hero__slices span:nth-child(5) { flex: 1.5; background: var(--clay); }

/* ---------- 热门问题 ---------- */
.page-faq .faq-hot {
  padding: 2.5rem 0 3rem;
  background: var(--ink-900);
}

.page-faq .faq-sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  padding-bottom: 1.05rem;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-sec-head__index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--clay);
}

.page-faq .faq-sec-head__title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: clamp(1.7rem, 5vw, 2.7rem);
}

.page-faq .faq-sec-head__note {
  font-size: 0.78rem;
  color: var(--ash);
}

.page-faq .faq-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
  align-items: center;
  margin-top: 1.5rem;
}

.page-faq .faq-search {
  position: relative;
  flex: 1 1 280px;
  min-width: 0;
}

.page-faq .faq-search__input {
  width: 100%;
  padding: 0.8rem 1rem 0.8rem 2.5rem;
  background: rgba(16, 22, 20, 0.92);
  border: 1px solid var(--faq-soft);
  border-radius: var(--radius);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.4;
}

.page-faq .faq-search__input::placeholder { color: var(--slate); }

.page-faq .faq-search__input:focus {
  outline: none;
  border-color: var(--mint);
  box-shadow: 0 0 0 3px rgba(101, 242, 183, 0.14);
}

.page-faq .faq-search__icon {
  position: absolute;
  left: 0.95rem;
  top: 50%;
  width: 11px;
  height: 11px;
  margin-top: -9px;
  border: 2px solid var(--mint);
  border-radius: 50%;
}

.page-faq .faq-search__icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -4px;
  width: 7px;
  height: 2px;
  background: var(--mint);
  transform: rotate(45deg);
}

.page-faq .faq-tools__hint {
  flex: 1 1 220px;
  min-width: 0;
  font-size: 0.78rem;
  color: var(--ash);
}

.page-faq .faq-scale {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.15rem;
}

.page-faq .faq-scale__link {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--faq-soft);
  border-radius: 999px;
  font-size: 0.79rem;
  color: var(--ash);
  transition: color 0.18s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-scale__link:hover,
.page-faq .faq-scale__link:focus-visible {
  color: var(--ink-900);
  background: var(--mint);
  border-color: var(--mint);
}

.page-faq .faq-hot__grid {
  display: grid;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hot__card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 1rem 1.05rem;
  background: linear-gradient(158deg, rgba(29, 58, 45, 0.58), rgba(16, 22, 20, 0.82));
  border: 1px solid var(--faq-soft);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-hot__card:hover,
.page-faq .faq-hot__card:focus-visible {
  transform: translateY(-2px);
  border-left-color: var(--mint);
  border-color: var(--line);
}

.page-faq .faq-hot__text {
  font-size: 0.96rem;
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .faq-hot__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.page-faq .faq-hot__meta .tag {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

.page-faq .faq-hot__arrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--slate);
}

.page-faq .faq-hot__figure {
  margin: 1.6rem 0 0;
  border: 1px solid var(--faq-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--moss);
}

.page-faq .faq-hot__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding: 2.5rem 0 3.5rem;
  background: linear-gradient(180deg, var(--ink-900) 0%, #050F0B 100%);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: 1.75rem;
}

.page-faq .faq-rail {
  padding: 0.9rem 0 1rem;
  border-top: 2px solid var(--mint);
  border-bottom: 1px solid var(--faq-line);
  min-width: 0;
}

.page-faq .faq-rail__kicker {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ash);
}

.page-faq .faq-rail__nav { margin-top: 0.8rem; }

.page-faq .faq-rail__nav .chapter-nav__list {
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  padding-bottom: 0.4rem;
}

.page-faq .faq-rail__nav .chapter-nav__item { flex: 0 0 auto; }

.page-faq .faq-rail__nav .chapter-nav__link {
  display: inline-block;
  padding: 0.32rem 0.7rem;
  font-size: 0.81rem;
  color: var(--ash);
  border: 1px solid var(--faq-soft);
  border-radius: 999px;
  white-space: nowrap;
  transition: color 0.18s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-rail__nav .chapter-nav__link:hover,
.page-faq .faq-rail__nav .chapter-nav__link:focus-visible {
  color: var(--bone);
  border-color: var(--mint);
}

.page-faq .faq-rail__nav .chapter-nav__link[data-active] {
  color: var(--ink-900);
  background: var(--mint);
  border-color: var(--mint);
}

.page-faq .faq-rail__cta {
  display: inline-flex;
  justify-content: center;
  width: 100%;
  margin-top: 0.9rem;
  font-size: 0.82rem;
}

.page-faq .faq-groups {
  display: grid;
  gap: 2.5rem;
  min-width: 0;
}

.page-faq .faq-group { min-width: 0; }

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.9rem;
  padding-bottom: 0.85rem;
  border-bottom: 2px solid var(--faq-line);
}

.page-faq .faq-group__index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--clay);
}

.page-faq .faq-group__title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: clamp(1.45rem, 4vw, 2.1rem);
}

.page-faq .faq-group__lead {
  flex: 1 1 100%;
  margin-top: 0.25rem;
  font-size: 0.84rem;
  color: var(--ash);
}

/* 手风琴 */
.page-faq .qa { border-bottom: 1px solid var(--faq-soft); }

.page-faq .qa__head {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1.05rem 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__num {
  flex: 0 0 auto;
  min-width: 1.6rem;
  padding-top: 0.32rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-faq .qa__q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
}

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 0.45rem;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--mint);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.page-faq .qa__mark::before { left: 0; top: 6px; width: 14px; height: 2px; }
.page-faq .qa__mark::after { left: 6px; top: 0; width: 2px; height: 14px; }

.page-faq .qa[open] .qa__mark::after { transform: scaleY(0); opacity: 0; }
.page-faq .qa[open] .qa__q { color: var(--mint); }
.page-faq .qa--hot .qa__q { color: var(--amber); }
.page-faq .qa--hot[open] .qa__q { color: var(--mint); }

.page-faq .qa__body {
  max-width: 68ch;
  padding: 0 0 1.25rem 2.35rem;
  font-size: 0.92rem;
  color: var(--ash);
}

.page-faq .qa__body p + p { margin-top: 0.6rem; }

.page-faq .qa__body a {
  color: var(--mint);
  border-bottom: 1px solid rgba(101, 242, 183, 0.4);
}

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

/* 排查步骤 */
.page-faq .faq-steps-wrap {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.page-faq .faq-steps {
  padding: 1.15rem 1.1rem 1.25rem;
  background: rgba(29, 58, 45, 0.42);
  border: 1px solid var(--faq-soft);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius);
}

.page-faq .faq-steps__title {
  margin-bottom: 0.8rem;
  font-size: 1.02rem;
  color: var(--bone);
}

.page-faq .faq-steps__item {
  display: flex;
  gap: 0.7rem;
  padding: 0.5rem 0;
  border-top: 1px dashed var(--faq-soft);
  font-size: 0.87rem;
  color: var(--ash);
}

.page-faq .faq-steps__item:first-child { border-top: 0; }

.page-faq .faq-steps__num {
  flex: 0 0 auto;
  padding-top: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .faq-steps__figure {
  margin: 0;
  border: 1px solid var(--faq-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--moss);
}

.page-faq .faq-steps__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* 联系卡 */
.page-faq .faq-contact { margin-top: 1.4rem; }

.page-faq .faq-contact__card {
  position: relative;
  padding: 1.25rem 1.1rem 1.35rem;
  background: linear-gradient(155deg, rgba(29, 58, 45, 0.72), rgba(16, 22, 20, 0.92));
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-contact__card::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(101, 242, 183, 0.14);
  border-radius: 1px;
  pointer-events: none;
}

.page-faq .faq-contact__kicker {
  margin-bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 0.9rem;
  padding: 0.55rem 0;
  border-top: 1px solid var(--faq-soft);
}

.page-faq .faq-contact__row:first-of-type { border-top: 0; }

.page-faq .faq-contact__row dt {
  flex: 0 0 5.2rem;
  padding-top: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--ash);
}

.page-faq .faq-contact__row dd {
  flex: 1 1 12rem;
  min-width: 0;
  margin: 0;
  font-size: 0.94rem;
  word-break: break-word;
}

.page-faq .faq-contact__row dd a {
  color: var(--mint);
  border-bottom: 1px solid rgba(101, 242, 183, 0.35);
}

.page-faq .faq-contact__note {
  margin-top: 0.85rem;
  font-size: 0.79rem;
  line-height: 1.7;
  color: var(--ash);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hot__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-faq .faq-hero { padding: 4rem 0 3rem; }
  .page-faq .faq-contact__row dt { padding-top: 0.2rem; }
}

@media (min-width: 900px) {
  .page-faq .faq-hero { padding: 5.5rem 0 3.5rem; }
  .page-faq .faq-hot { padding: 3rem 0 3.5rem; }
  .page-faq .faq-hot__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-faq .faq-hot__figure { margin-top: 2rem; }
  .page-faq .faq-steps-wrap {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
  .page-faq .faq-body { padding: 3.5rem 0 4.5rem; }
}

@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 3.5rem;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 5.5rem;
    align-self: start;
  }

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

  .page-faq .faq-rail__nav .chapter-nav__link {
    display: block;
    padding: 0.5rem 0.15rem;
    border: 0;
    border-bottom: 1px solid var(--faq-soft);
    border-radius: 0;
    white-space: normal;
  }

  .page-faq .faq-rail__nav .chapter-nav__link[data-active] {
    background: none;
    color: var(--mint);
    border-bottom-color: var(--mint);
  }

  .page-faq .qa__q { font-size: 1.05rem; }
  .page-faq .qa__body { padding-left: 2.35rem; }
}

@media (min-width: 1180px) {
  .page-faq .faq-hot__grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .page-faq .faq-contact__card { padding: 1.5rem 1.4rem 1.6rem; }
}
<<<END>>>