/* ===== 帮助中心 · 页面专属样式 ===== */
.page-faq {
  --faq-ink-soft: #C6D1E0;
  --faq-gap: clamp(22px, 3.6vw, 46px);
  display: block;
  background:
    radial-gradient(120% 58% at 100% 0%, rgba(38, 224, 198, 0.07), transparent 62%),
    radial-gradient(90% 46% at 0% 10%, rgba(255, 106, 43, 0.07), transparent 60%);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(20px, 3.2vw, 38px) 0 clamp(26px, 4vw, 54px);
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(20px, 3vw, 38px);
  margin-top: clamp(16px, 2.4vw, 30px);
}

.page-faq .faq-hero__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--c-accent);
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.2vw, 60px);
  line-height: 0.98;
  letter-spacing: 0.02em;
  color: var(--c-ink);
}

.page-faq .faq-hero__lede {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-hero__aside {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-faq .faq-link {
  color: var(--c-data);
  text-decoration: none;
  border-bottom: 1px solid var(--c-data-soft);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--c-accent);
  border-bottom-color: var(--c-accent);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--c-line);
  background: linear-gradient(160deg, var(--c-panel), var(--c-deep));
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06) brightness(0.82);
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 10px;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(233, 238, 246, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(233, 238, 246, 0.07) 1px, transparent 1px);
  background-size: 34px 34px;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }
}

/* ---------- 问答主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  padding: clamp(26px, 4vw, 56px) 0 0;
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(198px, 238px) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--c-line);
  background: rgba(18, 27, 46, 0.72);
  padding: 14px;
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__item {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  font-size: 13.5px;
  line-height: 1.3;
  white-space: nowrap;
  text-decoration: none;
  color: var(--c-muted);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .faq-index__link .num {
  font-size: 12px;
  color: var(--c-muted);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--c-ink);
  border-color: var(--c-accent);
  background: rgba(255, 106, 43, 0.08);
}

@media (min-width: 980px) {
  .page-faq .faq-index {
    position: sticky;
    top: 108px;
  }

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

  .page-faq .faq-index__item {
    flex: 1 1 auto;
  }

  .page-faq .faq-index__link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    white-space: normal;
    padding: 10px 10px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--c-accent);
    background: linear-gradient(90deg, rgba(255, 106, 43, 0.12), transparent 82%);
  }
}

/* ---------- 答案流 ---------- */
.page-faq .faq-stream {
  display: grid;
  gap: clamp(30px, 4.4vw, 58px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 118px;
  min-width: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 2px;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-accent);
}

.page-faq .faq-group__title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 23px);
  letter-spacing: 0.02em;
  color: var(--c-ink);
}

/* ---------- 单条问答 ---------- */
.page-faq .faq-q {
  scroll-margin-top: 118px;
  border-bottom: 1px dashed var(--c-line-soft);
}

.page-faq .faq-q > summary {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 15px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, 1.5vw, 16.5px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-ink);
  transition: background-color 0.18s var(--ease);
}

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

.page-faq .faq-q > summary::marker {
  content: "";
}

.page-faq .faq-q > summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.4;
  color: var(--c-muted);
  transition: color 0.18s var(--ease);
}

.page-faq .faq-q[open] > summary::after {
  content: "–";
  color: var(--c-accent);
}

.page-faq .faq-q > summary:hover,
.page-faq .faq-q > summary:focus-visible {
  background: linear-gradient(90deg, rgba(255, 106, 43, 0.07), transparent 68%);
}

.page-faq .faq-q > summary:hover::after,
.page-faq .faq-q > summary:focus-visible::after {
  color: var(--c-accent);
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-q__dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(255, 106, 43, 0.14);
}

.page-faq .faq-q__dot--fee {
  background: var(--c-amber);
  box-shadow: 0 0 0 3px rgba(240, 180, 65, 0.15);
}

.page-faq .faq-q__dot--data {
  background: var(--c-grass-ink);
  box-shadow: 0 0 0 3px rgba(143, 198, 166, 0.16);
}

.page-faq .faq-q__dot--mobile {
  background: var(--c-data);
  box-shadow: 0 0 0 3px rgba(38, 224, 198, 0.16);
}

.page-faq .faq-q__dot--service {
  background: var(--c-ink);
  box-shadow: 0 0 0 3px rgba(233, 238, 246, 0.12);
}

.page-faq .faq-q__body {
  max-width: 74ch;
  padding: 0 0 18px 27px;
}

.page-faq .faq-q__body > p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-q__body > p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-q__body .num {
  color: var(--c-data);
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
}

.page-faq .faq-steps > li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 7px 0;
  border-bottom: 1px solid rgba(38, 52, 74, 0.42);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .faq-steps > li:last-child {
  border-bottom: 0;
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--c-data);
}

/* ---------- 资料区配图 ---------- */
.page-faq .faq-figure {
  position: relative;
  margin: 22px 0 0;
  padding: 9px;
  border: 1px solid var(--c-line);
  background: linear-gradient(165deg, rgba(76, 127, 99, 0.18), var(--c-deep));
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.05) brightness(0.84);
}

.page-faq .faq-figure figcaption {
  display: block;
  padding: 10px 2px 2px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 底部转人工 ---------- */
.page-faq .faq-escalate {
  scroll-margin-top: 118px;
  display: grid;
  gap: 18px;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--c-accent);
  background:
    linear-gradient(100deg, rgba(255, 106, 43, 0.13), rgba(18, 27, 46, 0.55) 44%, rgba(10, 16, 32, 0.92));
}

.page-faq .faq-escalate__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 26px);
  letter-spacing: 0.02em;
  color: var(--c-ink);
}

.page-faq .faq-escalate__text {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-escalate__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-escalate__list li {
  padding: 4px 9px;
  border: 1px solid rgba(240, 180, 65, 0.38);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--c-amber);
}

@media (min-width: 860px) {
  .page-faq .faq-escalate {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-faq .faq-escalate__action {
    padding-left: 24px;
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 620px) {
  .page-faq .faq-q__body {
    padding-left: 17px;
  }

  .page-faq .faq-q__dot {
    margin-top: 8px;
  }

  .page-faq .faq-steps > li {
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 8px;
  }

  .page-faq .faq-escalate__list li {
    font-size: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}