.page-faq {
  --faq-cream-ink: #6B5F55;
  --faq-cream-line: rgba(42, 35, 32, .14);
  --faq-cream-accent: #B2431A;
  background: var(--void);
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 64px 0 36px;
  border-bottom: 1px solid var(--hairline);
  background:
    radial-gradient(92% 72% at 82% -12%, rgba(46, 123, 255, .22), transparent 62%),
    radial-gradient(56% 46% at 0% 108%, rgba(255, 106, 43, .12), transparent 70%),
    var(--void);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
  margin-top: 26px;
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 84px 0 44px;
  }
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: start;
  }
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 6.6vw, 56px);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -.012em;
  color: var(--text);
}

.page-faq .faq-hero__desc {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-hero .btn-row {
  margin-top: 26px;
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--hairline);
  background: var(--ink);
  box-shadow: 0 18px 46px -32px rgba(0, 0, 0, .9);
}

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

.page-faq .faq-figure__cap {
  padding: 10px 14px;
  border-top: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--steel);
}

.page-faq .faq-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--hairline);
  background: var(--hairline);
}

.page-faq .faq-fact {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 12px 10px;
  background: var(--ink);
}

.page-faq .faq-fact__num {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--neon);
}

.page-faq .faq-fact__unit {
  font-size: 12px;
  color: var(--steel);
}

.page-faq .faq-fact__label {
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: .03em;
  color: var(--steel);
}

/* ---------- 场景筛选 ---------- */
.page-faq .faq-scene {
  padding: 38px 0 6px;
}

.page-faq .faq-scene__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  margin-bottom: 16px;
}

.page-faq .faq-scene__title {
  margin: 0;
  font-size: clamp(20px, 3.4vw, 24px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-faq .faq-scene__sub {
  margin: 0;
  font-size: 13px;
  color: var(--steel);
}

.page-faq .faq-scene__bar {
  display: flex;
  gap: 8px;
  padding-bottom: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-scene__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

.page-faq .faq-scene__chip {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 16px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--text-dim);
  font-size: 14px;
  cursor: pointer;
  user-select: none;
  transition: color .2s var(--ease), border-color .2s var(--ease),
    background .2s var(--ease), box-shadow .25s var(--ease);
}

.page-faq .faq-scene__chip-code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--steel);
}

.page-faq .faq-scene__chip:hover {
  border-color: var(--steel);
  color: var(--text);
}

.page-faq .faq-scene__radio:focus-visible + .faq-scene__chip {
  outline: 2px solid var(--blue-glow);
  outline-offset: 2px;
}

.page-faq .faq-scene__radio:checked + .faq-scene__chip {
  color: var(--text);
  border-color: var(--blue);
  background: rgba(46, 123, 255, .14);
  box-shadow: 0 0 0 1px rgba(46, 123, 255, .45), 0 14px 30px -22px rgba(46, 123, 255, .95);
}

.page-faq .faq-scene__radio:checked + .faq-scene__chip .faq-scene__chip-code {
  color: var(--blue-glow);
}

/* 场景过滤（:has 不可用时自动降级为全部显示） */
.page-faq:has(#scene-phone:checked) .qa-item:not([data-scene~="phone"]),
.page-faq:has(#scene-tv:checked) .qa-item:not([data-scene~="tv"]),
.page-faq:has(#scene-schedule:checked) .qa-item:not([data-scene~="schedule"]),
.page-faq:has(#scene-account:checked) .qa-item:not([data-scene~="account"]) {
  display: none;
}

.page-faq:has(#scene-phone:checked) .faq-group:not(:has(.qa-item[data-scene~="phone"])),
.page-faq:has(#scene-tv:checked) .faq-group:not(:has(.qa-item[data-scene~="tv"])),
.page-faq:has(#scene-schedule:checked) .faq-group:not(:has(.qa-item[data-scene~="schedule"])),
.page-faq:has(#scene-account:checked) .faq-group:not(:has(.qa-item[data-scene~="account"])) {
  display: none;
}

/* ---------- 两栏主体 ---------- */
.page-faq .faq-body {
  padding: 38px 0 72px;
  border-top: 1px solid var(--hairline);
  background: linear-gradient(180deg, var(--void) 0%, var(--ink) 100%);
}

.page-faq .faq-layout {
  display: grid;
  gap: 28px;
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: 52px;
    align-items: start;
  }
}

.page-faq .faq-index {
  padding: 16px 14px;
  border: 1px solid var(--hairline);
  background: rgba(20, 26, 34, .72);
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: 92px;
  }
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

@media (min-width: 960px) {
  .page-faq .faq-index__list {
    flex-direction: column;
    overflow: visible;
  }
}

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

@media (min-width: 960px) {
  .page-faq .faq-index__item {
    flex: 1 1 auto;
  }
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 10px;
  border-left: 2px solid transparent;
  color: var(--text-dim);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: color .18s var(--ease), border-color .18s var(--ease),
    background .18s var(--ease);
}

@media (min-width: 960px) {
  .page-faq .faq-index__link {
    white-space: normal;
  }
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text);
  background: rgba(46, 123, 255, .08);
  border-left-color: var(--blue);
}

.page-faq .faq-index__link.is-active {
  color: var(--text);
  background: rgba(184, 255, 60, .07);
  border-left-color: var(--neon);
}

.page-faq .faq-index__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--steel);
}

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

.page-faq .faq-index__count {
  font-size: 11px;
  color: var(--steel);
}

.page-faq .faq-main {
  display: flex;
  flex-direction: column;
  gap: 46px;
  min-width: 0;
}

/* ---------- 分组标题 ---------- */
.page-faq .faq-group {
  min-width: 0;
}

.page-faq .faq-group__head {
  padding-bottom: 14px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-group__code {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(22px, 3.6vw, 30px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-faq .faq-group__note {
  margin: 8px 0 0;
  max-width: 46em;
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-item {
  border-bottom: 1px solid var(--hairline);
  transition: background .22s var(--ease);
}

.page-faq .qa-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  min-height: 64px;
  padding: 14px 16px 14px 8px;
  cursor: pointer;
  list-style: none;
  color: var(--text);
  transition: background .18s var(--ease), color .18s var(--ease);
}

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

.page-faq .qa-item__q:hover {
  background: rgba(46, 123, 255, .06);
}

.page-faq .qa-item__q:focus-visible {
  outline: 1px solid var(--blue-glow);
  outline-offset: -1px;
}

.page-faq .qa-item__code {
  padding-left: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--steel);
  transition: color .18s var(--ease);
}

.page-faq .qa-item__text {
  min-width: 0;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.55;
}

.page-faq .qa-item__mark {
  position: relative;
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

.page-faq .qa-item__mark::before,
.page-faq .qa-item__mark::after {
  content: "";
  position: absolute;
  background: var(--steel);
  transition: transform .25s var(--ease), background .2s var(--ease);
}

.page-faq .qa-item__mark::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 1.5px;
}

.page-faq .qa-item__mark::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 1.5px;
}

.page-faq .qa-item[open] {
  background: linear-gradient(90deg, rgba(20, 26, 34, 1), rgba(20, 26, 34, .5));
  box-shadow: inset 2px 0 0 var(--neon);
}

.page-faq .qa-item[open] .qa-item__text {
  font-weight: 700;
  color: var(--text);
}

.page-faq .qa-item[open] .qa-item__code {
  color: var(--neon);
}

.page-faq .qa-item[open] .qa-item__mark::before,
.page-faq .qa-item[open] .qa-item__mark::after {
  background: var(--neon);
}

.page-faq .qa-item[open] .qa-item__mark::after {
  transform: scaleY(0);
}

.page-faq .qa-item__a {
  max-width: 62ch;
  padding: 2px 18px 22px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

@media (min-width: 720px) {
  .page-faq .qa-item__a {
    padding-left: 70px;
    padding-right: 56px;
  }
}

.page-faq .qa-item[open] .qa-item__a {
  animation: faq-qa-in .28s var(--ease) both;
}

@keyframes faq-qa-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .qa-item__lead {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--text);
}

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

.page-faq .qa-item__a p + p {
  margin-top: 8px;
}

.page-faq .qa-item__a a {
  color: var(--blue-glow);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 178, 255, .45);
}

.page-faq .qa-item__a a:hover {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* ---------- 排查顺序图 ---------- */
.page-faq .faq-flow {
  margin: 26px 0 0;
  padding: 20px 18px;
  border-radius: var(--radius);
  background: var(--cream);
  color: var(--brown);
}

.page-faq .faq-flow__cap {
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--faq-cream-ink);
}

.page-faq .faq-flow__list {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-flow__step {
  display: flex;
  flex: 1 1 130px;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--faq-cream-line);
  background: rgba(42, 35, 32, .05);
}

.page-faq .faq-flow__num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--faq-cream-accent);
}

.page-faq .faq-flow__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--brown);
}

.page-faq .faq-flow__desc {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--faq-cream-ink);
}

.page-faq .faq-flow__arrow {
  display: flex;
  flex: 0 0 auto;
  align-self: center;
  width: 24px;
  height: 12px;
  color: var(--faq-cream-accent);
}

/* ---------- 大屏配图 ---------- */
.page-faq .faq-shot {
  margin: 26px 0 0;
  border: 1px solid var(--hairline);
  background: var(--void);
}

.page-faq .faq-shot img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-faq .faq-shot figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--steel);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-outro {
  padding: 0 0 88px;
}

.page-faq .faq-outro__panel {
  padding: 30px 22px;
  border: 1px solid var(--hairline);
  background:
    radial-gradient(84% 108% at 100% 0%, rgba(46, 123, 255, .16), transparent 66%),
    var(--ink);
}

.page-faq .faq-outro__title {
  margin: 0 0 20px;
  font-size: clamp(20px, 3.2vw, 26px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-faq .faq-outro__links {
  display: grid;
  gap: 1px;
  border: 1px solid var(--hairline);
  background: var(--hairline);
}

@media (min-width: 760px) {
  .page-faq .faq-outro__links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-outro__link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  background: var(--void);
  color: var(--text);
  text-decoration: none;
  transition: background .2s var(--ease);
}

.page-faq .faq-outro__link:hover,
.page-faq .faq-outro__link:focus-visible {
  background: rgba(46, 123, 255, .13);
}

.page-faq .faq-outro__code {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-faq .faq-outro__name {
  font-size: 17px;
  font-weight: 700;
}

.page-faq .faq-outro__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--steel);
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-item[open] .qa-item__a {
    animation: none;
  }
  .page-faq .qa-item,
  .page-faq .qa-item__q,
  .page-faq .qa-item__mark::before,
  .page-faq .qa-item__mark::after,
  .page-faq .faq-scene__chip,
  .page-faq .faq-index__link,
  .page-faq .faq-outro__link {
    transition: none;
  }
}
</final>