.page-faq {
  --faq-gap: clamp(2.5rem, 6vw, 5rem);
  position: relative;
  color: var(--text);
  padding-bottom: var(--faq-gap);
}

.page-faq .section-head__title {
  margin-bottom: 0.6rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: clamp(1.5rem, 4vw, 2.75rem);
  padding-bottom: var(--faq-gap);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -25% -10% auto;
  height: 130%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(46% 42% at 78% 12%, rgba(139, 92, 246, 0.22), transparent 72%),
    radial-gradient(38% 36% at 5% 2%, rgba(61, 187, 255, 0.13), transparent 70%),
    radial-gradient(34% 30% at 44% 98%, rgba(214, 168, 75, 0.12), transparent 74%);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 5vw, 3.5rem);
  align-items: center;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.2vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 0.7rem 0 1.15rem;
}

.page-faq .faq-hero__intro {
  max-width: 36em;
  margin: 0 0 1.75rem;
  font-size: clamp(0.95rem, 1.6vw, 1.0625rem);
  line-height: 1.9;
  color: var(--text-dim);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-faq .faq-hero__media {
  margin: 0;
  position: relative;
  border: 1px solid var(--line-gold);
  box-shadow: var(--shadow-soft);
}

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

@media (min-width: 980px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
  }
}

/* ---------- 四个快速答案 ---------- */
.page-faq .faq-quick-section {
  padding-bottom: var(--faq-gap);
}

.page-faq .faq-quick {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(1.25rem, 3vw, 2rem);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-faq .faq-quick__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: clamp(1.15rem, 2.4vw, 1.6rem);
  background: linear-gradient(170deg, rgba(26, 27, 32, 0.96), rgba(11, 11, 15, 0.97));
  transition: background 0.22s var(--ease);
}

.page-faq .faq-quick__card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity 0.22s var(--ease);
}

.page-faq .faq-quick__card:hover::after,
.page-faq .faq-quick__card:focus-within::after {
  opacity: 1;
}

.page-faq .faq-quick__index {
  font-size: clamp(1.7rem, 3.2vw, 2.3rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-quick__q {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--fs-18);
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .faq-quick__a {
  margin: 0;
  flex: 1 1 auto;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .faq-quick__more {
  align-self: flex-start;
  font-size: var(--fs-14);
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 187, 255, 0.35);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-quick__more:hover,
.page-faq .faq-quick__more:focus-visible {
  color: var(--gold-soft);
  border-color: var(--gold);
}

@media (min-width: 620px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 主题索引 + 手风琴 ---------- */
.page-faq .faq-topics {
  padding-bottom: var(--faq-gap);
}

.page-faq .faq-topics__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-toc {
  border-left: 1px solid var(--line-gold);
  padding-left: 1rem;
}

.page-faq .faq-toc__title {
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--text-mute);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.1rem;
}

.page-faq .faq-toc__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.45rem 0.35rem 0.45rem 0.65rem;
  font-size: var(--fs-14);
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-toc__link::before {
  content: "";
  position: absolute;
  left: -1rem;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -3.5px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 3px rgba(61, 187, 255, 0.14);
  transition: background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .faq-toc__link .num {
  font-size: var(--fs-12);
  color: var(--gold);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--gold-soft);
  background: rgba(214, 168, 75, 0.06);
}

.page-faq .faq-toc__link:hover::before,
.page-faq .faq-toc__link:focus-visible::before {
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(214, 168, 75, 0.16);
}

.page-faq .faq-groups {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
}

.page-faq .faq-group {
  scroll-margin-top: 110px;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  margin: 0 0 0.5rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--line-gold);
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  color: var(--paper);
}

.page-faq .faq-group__title .num {
  font-size: var(--fs-14);
  color: var(--gold);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 1px solid var(--gold);
  outline-offset: 4px;
}

.page-faq .faq-item__q {
  font-size: var(--fs-16);
  line-height: 1.65;
  color: var(--text);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item summary:hover .faq-item__q,
.page-faq .faq-item[open] .faq-item__q {
  color: var(--gold-soft);
}

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

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 14px;
  height: 1px;
  background: var(--gold);
  transition: transform 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-item__sign::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: rotate(0deg);
}

.page-faq .faq-item__a {
  padding: 0 1.75rem 1.1rem 0;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--text-dim);
}

@media (min-width: 920px) {
  .page-faq .faq-topics__grid {
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 100px;
  }
}

/* ---------- 五步排查 ---------- */
.page-faq .faq-install {
  padding-bottom: var(--faq-gap);
  scroll-margin-top: 90px;
}

.page-faq .faq-install__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}

.page-faq .faq-steps {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 2rem) 0 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 1.9rem 3.4rem;
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 1.05rem;
  top: 2.35rem;
  bottom: 0.15rem;
  width: 1px;
  background: linear-gradient(180deg, rgba(214, 168, 75, 0.5), rgba(214, 168, 75, 0));
}

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step__num {
  position: absolute;
  left: 0;
  top: 0.15rem;
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border: 1px solid var(--line-gold);
  border-radius: 50%;
  background: var(--ink-3);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
}

.page-faq .faq-step__title {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: var(--fs-16);
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .faq-step__text {
  margin: 0 0 0.55rem;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .faq-step__check {
  margin: 0;
  padding-left: 0.7rem;
  border-left: 2px solid rgba(61, 187, 255, 0.5);
  font-size: var(--fs-12);
  line-height: 1.85;
  color: var(--text-mute);
}

.page-faq .faq-step__check strong {
  margin-right: 0.4rem;
  color: var(--blue);
  font-weight: 600;
}

.page-faq .faq-install__media {
  margin: 0;
  border: 1px solid var(--line-soft);
  background: var(--ink-3);
}

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

.page-faq .faq-install__media .figure-caption {
  display: block;
  padding: 0.85rem 1rem;
  font-size: var(--fs-12);
  line-height: 1.75;
  color: var(--text-mute);
}

@media (min-width: 960px) {
  .page-faq .faq-install__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }

  .page-faq .faq-install__media {
    position: sticky;
    top: 100px;
  }
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-escalate {
  padding-bottom: var(--faq-gap);
}

.page-faq .faq-escalate__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--line-gold);
  background: linear-gradient(160deg, rgba(26, 27, 32, 0.94), rgba(11, 11, 15, 0.97));
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-escalate__panel::before {
  content: "";
  position: absolute;
  right: -12%;
  top: -45%;
  width: 55%;
  height: 170%;
  pointer-events: none;
  background: radial-gradient(closest-side, rgba(255, 107, 74, 0.16), transparent 72%);
}

.page-faq .faq-escalate__lead {
  position: relative;
  max-width: 62ch;
}

.page-faq .faq-escalate__lead h2 {
  margin: 0.55rem 0 0.9rem;
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .faq-escalate__lead p {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.9;
  color: var(--text-dim);
}

.page-faq .faq-escalate__cols {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
  margin-top: clamp(1.5rem, 3.5vw, 2.5rem);
}

.page-faq .faq-escalate__col-title {
  margin: 0;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-faq .faq-checklist {
  list-style: none;
  display: grid;
  gap: 0.55rem;
  margin: 0.9rem 0 0;
  padding: 0;
}

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 1.1rem;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

.page-faq .faq-checklist--timeline li::before {
  border-color: var(--coral);
  background: rgba(255, 107, 74, 0.35);
}

.page-faq .faq-checklist strong {
  margin-right: 0.3rem;
  color: var(--gold-soft);
  font-weight: 700;
}

.page-faq .faq-escalate__col .btn {
  margin-top: 1.15rem;
}

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

/* ---------- 服务渠道 ---------- */
.page-faq .faq-channels {
  padding-bottom: var(--faq-gap);
}

.page-faq .faq-channels__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(1.25rem, 3vw, 2rem);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-faq .faq-channel {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: clamp(1.15rem, 2.6vw, 1.75rem);
  background: var(--ink-3);
  border-top: 2px solid transparent;
  transition: border-color 0.22s var(--ease);
}

.page-faq .faq-channel:hover {
  border-top-color: var(--gold);
}

.page-faq .faq-channel__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .faq-channel__value {
  margin: 0;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .faq-channel--email .faq-channel__value {
  word-break: break-all;
}

.page-faq .faq-channel__note {
  margin: 0;
  flex: 1 1 auto;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .faq-channel__link {
  align-self: flex-start;
  font-size: var(--fs-14);
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 187, 255, 0.4);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-channel__link:hover,
.page-faq .faq-channel__link:focus-visible {
  color: var(--gold-soft);
  border-color: var(--gold);
}

@media (min-width: 700px) {
  .page-faq .faq-channels__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 继续浏览 ---------- */
.page-faq .faq-next {
  padding-bottom: var(--faq-gap);
}

.page-faq .faq-next__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-next__text {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--fs-18);
  color: var(--text);
}

.page-faq .faq-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.page-faq .faq-next__links a {
  font-size: var(--fs-14);
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-next__links a:hover,
.page-faq .faq-next__links a:focus-visible {
  color: var(--gold-soft);
  border-color: var(--line-gold);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
<<<END>>>