.page-faq {
  --faq-amber-soft: rgba(255, 138, 60, .16);
  --faq-cyan-soft: rgba(68, 224, 207, .12);
  --faq-green-soft: rgba(92, 224, 160, .12);
  --faq-panel-glass: rgba(11, 18, 34, .74);
  padding-top: clamp(5rem, 10vw, 7.5rem);
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
  background: var(--ink);
  color: var(--cream);
}

.page-faq .section {
  padding-block: clamp(2rem, 5vw, 3.5rem);
}

.page-faq .coord {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1rem, 3vw, 1.75rem) clamp(2rem, 5vw, 3rem);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -40% -12% 32%;
  background:
    radial-gradient(46% 58% at 14% 24%, rgba(216, 168, 78, .22), transparent 70%),
    radial-gradient(38% 48% at 88% 4%, rgba(68, 224, 207, .14), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero > .container {
  position: relative;
}

.page-faq .faq-hero .eyebrow {
  margin-top: 1.1rem;
}

.page-faq .faq-hero h1 {
  margin: .7rem 0 0;
  max-width: 17ch;
  font-size: clamp(2rem, 7.4vw, 3.5rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -.022em;
  text-shadow: 0 0 30px rgba(216, 168, 78, .24);
}

.page-faq .faq-hero .lede {
  margin-top: 1rem;
  max-width: 62ch;
  color: var(--mist);
  line-height: 1.75;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump a {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .5rem .95rem;
  border: 1px solid var(--line-mid);
  border-radius: var(--r-pill);
  background: var(--faq-panel-glass);
  color: var(--cream);
  font-size: .85rem;
  text-decoration: none;
  transition: transform .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--line-gold);
  color: var(--gold);
}

.page-faq .faq-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex: none;
  background: var(--gold);
}

.page-faq .faq-dot--amber { background: var(--amber); }
.page-faq .faq-dot--cyan { background: var(--cyan); }
.page-faq .faq-dot--green { background: var(--green); }

/* ---------- 区块标题 ---------- */
.page-faq .faq-section-head {
  margin-bottom: clamp(1.1rem, 3vw, 1.6rem);
}

.page-faq .faq-section-head h2,
.page-faq .faq-group h2,
.page-faq .faq-support-copy h2 {
  margin: .45rem 0 0;
  font-size: clamp(1.28rem, 3.6vw, 1.75rem);
  line-height: 1.28;
  letter-spacing: -.012em;
  color: var(--cream);
}

.page-faq .faq-sub {
  margin: .7rem 0 0;
  max-width: 64ch;
  color: var(--mist);
  font-size: .95rem;
  line-height: 1.75;
}

/* ---------- 三档设备 ---------- */
.page-faq .faq-device-grid {
  display: grid;
  gap: clamp(1rem, 3vw, 1.6rem);
}

.page-faq .faq-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--r-lg);
}

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

.page-faq .faq-figure figcaption {
  padding: .65rem .95rem;
  background: rgba(5, 9, 20, .66);
  border-top: 1px solid var(--line-soft);
  color: var(--mist);
  font-size: .78rem;
  line-height: 1.6;
}

.page-faq .device-cards {
  display: grid;
  gap: .7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .device-card {
  position: relative;
  padding: 1rem 1.1rem 1rem 1.5rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, var(--panel-hi), var(--panel));
}

.page-faq .device-card::before {
  content: "";
  position: absolute;
  left: .65rem;
  top: 1.1rem;
  bottom: 1.1rem;
  width: 3px;
  border-radius: 2px;
  background: var(--gold);
}

.page-faq .device-card--tablet::before { background: var(--cyan); }
.page-faq .device-card--tv::before { background: var(--green); }

.page-faq .device-name {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-faq .device-scene {
  margin: .3rem 0 0;
  color: var(--mist);
  font-size: .86rem;
}

.page-faq .device-field {
  margin: .55rem 0 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .02em;
  color: var(--gold);
  line-height: 1.6;
}

/* ---------- 索引与问答布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.4rem);
}

.page-faq .faq-index {
  padding: 1rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: var(--faq-panel-glass);
}

.page-faq .faq-index-title {
  margin: 0 0 .85rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-index-list {
  display: grid;
  gap: .2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: .6rem;
  padding: .55rem .55rem;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  color: var(--cream);
  font-size: .9rem;
  text-decoration: none;
  transition: background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background: rgba(68, 224, 207, .08);
  border-color: var(--line-soft);
  color: var(--cyan);
}

.page-faq .faq-index-text {
  min-width: 0;
}

.page-faq .faq-index-link .coord {
  color: var(--mist);
  letter-spacing: .05em;
}

.page-faq .faq-index-note {
  margin: .9rem 0 0;
  padding-top: .85rem;
  border-top: 1px solid var(--line-soft);
  color: var(--mist);
  font-size: .8rem;
  line-height: 1.65;
}

/* ---------- 问答手风琴 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(1.8rem, 4.5vw, 2.8rem);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  margin-bottom: .95rem;
}

.page-faq .faq-group-head h2 {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-group .faq-figure--inline {
  margin: 0 0 .9rem;
  border-radius: var(--r-md);
}

.page-faq .qa {
  margin-bottom: .6rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--panel);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .qa:hover {
  border-color: var(--line-mid);
}

.page-faq .qa[open] {
  border-color: var(--line-gold);
  background: var(--panel-hi);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  padding: .95rem 1rem;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  line-height: 1.5;
  color: var(--cream);
}

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.2;
  color: var(--gold);
  transition: color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .qa[open] summary::after {
  content: "−";
  color: var(--cyan);
}

.page-faq .qa-num {
  flex: none;
  padding-top: .15rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-faq .qa-q {
  flex: 1;
  min-width: 0;
}

.page-faq .qa-body {
  padding: 0 1rem 1.1rem;
  color: var(--mist);
  font-size: .93rem;
  line-height: 1.78;
}

.page-faq .qa-body p {
  margin: 0 0 .7rem;
}

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

.page-faq .qa-body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa-body .btn {
  margin-top: .35rem;
}

/* ---------- 人工反馈 ---------- */
.page-faq .faq-support-panel {
  display: grid;
  gap: clamp(1.2rem, 4vw, 2rem);
  padding: clamp(1.2rem, 4vw, 2.25rem);
}

.page-faq .faq-support-copy p {
  margin: .8rem 0 0;
  max-width: 56ch;
  color: var(--cream);
  font-size: .95rem;
  line-height: 1.78;
}

.page-faq .faq-support-copy .qa-next {
  margin-top: 1.2rem;
}

.page-faq .faq-channels {
  display: grid;
  gap: .7rem;
  margin: 0;
  align-content: start;
}

.page-faq .faq-channel {
  padding: .85rem 1rem;
  border: 1px solid var(--line-gold);
  border-radius: var(--r-md);
  background: rgba(5, 9, 20, .6);
}

.page-faq .faq-channel dt {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-channel dd {
  margin: .4rem 0 0;
  font-family: var(--font-mono);
  font-size: .98rem;
  color: var(--cream);
  word-break: break-word;
  line-height: 1.5;
}

.page-faq .faq-clock {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin-left: .6rem;
  font-family: var(--font-body);
  font-size: .8rem;
  color: var(--green);
}

.page-faq .faq-clock-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px var(--faq-green-soft);
}

/* ---------- 焦点反馈 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-device-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-support-panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
  }

  .page-faq .faq-hero h1 {
    max-width: 20ch;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    align-items: start;
  }

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

  .page-faq .qa summary {
    padding: 1.05rem 1.2rem;
  }

  .page-faq .qa-body {
    padding: 0 1.2rem 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .qa,
  .page-faq .qa summary::after {
    transition: none;
  }

  .page-faq .faq-jump a:hover,
  .page-faq .faq-jump a:focus-visible {
    transform: none;
  }
}
<<<END>>>