.page-faq {
  --faq-index-w: 262px;
  --faq-signal-line: rgba(255, 92, 0, .55);
  background: var(--wh-night);
  color: var(--wh-fg);
  font-family: var(--wh-font-body);
  overflow-x: hidden;
}

.page-faq h1,
.page-faq h2 {
  font-family: var(--wh-font-title);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: calc(var(--wh-header-h) + 56px) 0 52px;
  overflow: hidden;
}

.page-faq .faq-hero__slash {
  position: absolute;
  inset: -12% -6% -12% 0;
  z-index: -1;
  background: var(--wh-night-2);
  clip-path: polygon(66% 0, 100% 0, 100% 100%, 42% 100%);
}

.page-faq .faq-hero__slash::after {
  content: "";
  position: absolute;
  top: -5%;
  bottom: -5%;
  left: 53%;
  width: 3px;
  background: var(--wh-signal);
  transform: skewX(-11deg);
  opacity: .9;
}

.page-faq .faq-crumb {
  margin-bottom: 24px;
}

.page-faq .faq-crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--wh-muted);
}

.page-faq .faq-crumb li + li::before {
  content: "/";
  margin-right: 10px;
  color: rgba(124, 140, 160, .55);
}

.page-faq .faq-crumb a {
  color: var(--wh-fg-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .12s ease, border-color .12s ease;
}

.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  color: var(--wh-signal-soft);
  border-bottom-color: var(--wh-signal);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 18px;
  font-family: var(--wh-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--wh-signal-soft);
}

.page-faq .faq-hero__title {
  margin: 0 0 22px;
  max-width: 20em;
  font-size: clamp(30px, 8.4vw, 62px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--wh-paper);
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  max-width: 40em;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--wh-fg-dim);
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-body {
  padding: 12px 0 72px;
  background: var(--wh-night);
}

.page-faq .faq-layout {
  display: grid;
  gap: 32px;
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

.page-faq .faq-index__label {
  margin: 0 0 14px;
  font-family: var(--wh-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--wh-muted);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0 10px 16px;
  border-left: 2px solid var(--wh-hairline);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--wh-fg-dim);
  text-decoration: none;
  transition: color .12s ease, border-color .12s ease, background-color .12s ease;
}

.page-faq .faq-index__n {
  font-family: var(--wh-font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--wh-muted);
  transition: color .12s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--wh-paper);
  border-left-color: var(--wh-signal);
  background: rgba(255, 92, 0, .07);
}

.page-faq .faq-index__link:hover .faq-index__n,
.page-faq .faq-index__link:focus-visible .faq-index__n {
  color: var(--wh-signal);
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--wh-header-h) + 24px);
    align-self: start;
  }
}

@media (max-width: 959px) {
  .page-faq .faq-index {
    margin-bottom: 4px;
  }

  .page-faq .faq-index__list {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
  }

  .page-faq .faq-index__link {
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 8px 2px;
    border-left: 0;
    border-bottom: 2px solid var(--wh-hairline);
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    background: transparent;
    border-bottom-color: var(--wh-signal);
  }
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: 44px 0 8px;
  border-top: 1px solid var(--wh-hairline);
  scroll-margin-top: calc(var(--wh-header-h) + 20px);
}

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

.page-faq .faq-group__head,
.page-faq .faq-device__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: 22px;
}

.page-faq .faq-group__no,
.page-faq .faq-device__no {
  font-family: var(--wh-font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--wh-signal);
}

.page-faq .faq-group__title,
.page-faq .faq-device__title {
  margin: 0 0 8px;
  font-size: clamp(21px, 4.6vw, 30px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--wh-paper);
}

.page-faq .faq-group__sub,
.page-faq .faq-device__sub {
  max-width: 52ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--wh-fg-dim);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  margin: 0 0 12px;
  border: 1px solid var(--wh-hairline);
  border-radius: var(--wh-radius);
  background: rgba(19, 42, 62, .55);
  overflow: hidden;
  transition: border-color .15s ease, background-color .15s ease;
}

.page-faq .faq-item:hover {
  border-color: rgba(255, 92, 0, .35);
}

.page-faq .faq-item[open] {
  background: var(--wh-night-2);
  border-color: var(--faq-signal-line);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  margin: 0;
  padding: 15px 18px;
  font-family: var(--wh-font-title);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--wh-paper);
  cursor: pointer;
  list-style: none;
  transition: color .12s ease;
}

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

.page-faq .faq-item__q::after {
  content: "+";
  font-family: var(--wh-font-mono);
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  color: var(--wh-signal);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
}

.page-faq .faq-item__q:hover {
  color: var(--wh-signal-soft);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--wh-signal);
  outline-offset: -2px;
}

.page-faq .faq-item__a {
  padding: 2px 18px 20px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--wh-fg-dim);
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
}

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

.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps__i {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-top: 1px dashed rgba(201, 210, 220, .16);
}

.page-faq .faq-steps__i:first-child {
  padding-top: 2px;
  border-top: 0;
}

.page-faq .faq-steps__n {
  font-family: var(--wh-font-mono);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--wh-signal);
}

.page-faq .faq-steps__tx {
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--wh-fg-dim);
}

.page-faq .faq-more {
  margin: 14px 0 0;
}

.page-faq .faq-more a {
  display: inline-block;
  padding-bottom: 2px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--wh-signal-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 138, 61, .35);
  transition: color .12s ease, border-color .12s ease;
}

.page-faq .faq-more a:hover,
.page-faq .faq-more a:focus-visible {
  color: var(--wh-signal);
  border-bottom-color: var(--wh-signal);
  outline: 2px solid var(--wh-signal);
  outline-offset: 3px;
}

/* ---------- 图文混排 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 26px;
}

@media (min-width: 920px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .9fr);
    align-items: start;
    gap: 34px;
  }
}

.page-faq .faq-figure,
.page-faq .faq-wide {
  margin: 0;
}

.page-faq .faq-figure img,
.page-faq .faq-wide img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--wh-radius);
  object-fit: cover;
}

.page-faq .faq-cap {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--wh-muted);
}

.page-faq .faq-cap--ink {
  color: #5C6E82;
}

/* ---------- 更新节奏 ---------- */
.page-faq .faq-ticks {
  display: grid;
  gap: 1px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  background: var(--wh-hairline);
  border-radius: var(--wh-radius);
  overflow: hidden;
}

@media (min-width: 720px) {
  .page-faq .faq-ticks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-ticks__i {
  padding: 18px 18px 20px;
  background: var(--wh-night-2);
  border-top: 3px solid rgba(201, 210, 220, .22);
}

.page-faq .faq-ticks__i:first-child {
  border-top-color: var(--wh-signal);
}

.page-faq .faq-ticks__t {
  display: block;
  margin-bottom: 8px;
  font-family: var(--wh-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--wh-signal-soft);
}

.page-faq .faq-ticks__d {
  display: block;
  font-size: 15px;
  line-height: 1.7;
  color: var(--wh-fg-dim);
}

/* ---------- 筛选条件清单 ---------- */
.page-faq .faq-terms {
  display: grid;
  gap: 1px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  background: var(--wh-hairline);
  border-radius: var(--wh-radius);
  overflow: hidden;
}

@media (min-width: 720px) {
  .page-faq .faq-terms {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-terms li {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 14px 16px;
  background: var(--wh-night);
}

.page-faq .faq-terms__k {
  font-family: var(--wh-font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--wh-muted);
}

.page-faq .faq-terms__v {
  font-size: 15px;
  line-height: 1.65;
  color: var(--wh-paper);
}

.page-faq .faq-terms__dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--wh-turf);
  vertical-align: middle;
}

/* ---------- 设备与性能（浅色区） ---------- */
.page-faq .faq-device {
  padding: 56px 0 64px;
  background: var(--wh-paper);
  color: var(--wh-ink);
  scroll-margin-top: calc(var(--wh-header-h) + 20px);
}

.page-faq .faq-device__no {
  color: var(--wh-signal);
}

.page-faq .faq-device__title {
  color: var(--wh-ink);
}

.page-faq .faq-device__sub {
  color: #4C5F73;
}

.page-faq .faq-wide {
  margin-bottom: 30px;
}

.page-faq .faq-device__qa {
  display: grid;
  gap: 0;
}

@media (min-width: 900px) {
  .page-faq .faq-device__qa {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 24px;
    align-items: start;
  }
}

.page-faq .faq-device .faq-item {
  background: #FFFFFF;
  border-color: rgba(6, 13, 20, .12);
}

.page-faq .faq-device .faq-item:hover {
  border-color: rgba(255, 92, 0, .45);
}

.page-faq .faq-device .faq-item[open] {
  background: #FFFFFF;
  border-color: var(--wh-signal);
}

.page-faq .faq-device .faq-item__q {
  color: var(--wh-ink);
}

.page-faq .faq-device .faq-item__q:hover {
  color: var(--wh-signal);
}

.page-faq .faq-device .faq-item__a,
.page-faq .faq-device .faq-steps__tx {
  color: #46586B;
}

.page-faq .faq-device .faq-steps__i {
  border-top-color: rgba(6, 13, 20, .1);
}

.page-faq .faq-device .faq-more a {
  color: #C74600;
  border-bottom-color: rgba(199, 70, 0, .35);
}

.page-faq .faq-device .faq-more a:hover,
.page-faq .faq-device .faq-more a:focus-visible {
  color: var(--wh-signal);
  border-bottom-color: var(--wh-signal);
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-human {
  padding: 56px 0 88px;
  background: var(--wh-night);
}

.page-faq .faq-human__panel {
  position: relative;
  display: grid;
  gap: 30px;
  padding: 34px 22px 32px;
  border: 1px solid var(--faq-signal-line);
  border-radius: var(--wh-radius);
  background: var(--wh-night-2);
}

.page-faq .faq-human__panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 96px;
  height: 5px;
  background: var(--wh-signal);
  border-radius: var(--wh-radius) 0 0 0;
}

@media (min-width: 900px) {
  .page-faq .faq-human__panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 48px;
    padding: 46px 42px;
    align-items: start;
  }
}

.page-faq .faq-human__no {
  display: block;
  margin-bottom: 14px;
  font-family: var(--wh-font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--wh-signal);
}

.page-faq .faq-human__title {
  margin: 0 0 16px;
  font-size: clamp(22px, 4.8vw, 32px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--wh-paper);
}

.page-faq .faq-human__text {
  max-width: 40ch;
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--wh-fg-dim);
}

.page-faq .faq-human__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-human__channels {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-human__channels li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 14px;
  padding: 13px 0;
  border-top: 1px solid var(--wh-hairline);
}

.page-faq .faq-human__channels li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-human__k {
  padding-top: 3px;
  font-family: var(--wh-font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--wh-muted);
}

.page-faq .faq-human__v {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--wh-paper);
  word-break: break-word;
}

.page-faq .faq-human__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--wh-muted);
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-index__link,
  .page-faq .faq-index__n,
  .page-faq .faq-crumb a,
  .page-faq .faq-more a {
    transition: none;
  }
}