.page-faq {
  --faq-edge: 2px solid var(--line);
  --faq-glow: 0 0 0 1px rgba(69, 242, 214, 0.18), 0 18px 40px rgba(2, 8, 16, 0.55);
  background: var(--ink-900);
  color: var(--frost);
  padding-bottom: 2.5rem;
}

.page-faq [id] {
  scroll-margin-top: 96px;
}

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

.page-faq .faq-crumb {
  padding-top: 1.25rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 1.5rem 0 2.25rem;
  border-bottom: var(--faq-edge);
  background-image:
    radial-gradient(circle at 88% 6%, rgba(69, 242, 214, 0.13), transparent 52%),
    linear-gradient(to right, rgba(23, 58, 82, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(23, 58, 82, 0.5) 1px, transparent 1px);
  background-size: auto, 72px 72px, 72px 72px;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 1rem;
}

.page-faq .faq-hero__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--cyan-400);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-size: clamp(1.9rem, 7.6vw, 3.35rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 0.98rem;
  line-height: 1.8;
  color: rgba(234, 248, 255, 0.82);
}

.page-faq .faq-hero__meta {
  display: grid;
  gap: 0.8rem;
  margin: 0.4rem 0 0;
  padding-top: 1rem;
  border-top: 1px dashed rgba(23, 58, 82, 0.95);
}

.page-faq .faq-hero__meta div {
  display: grid;
  gap: 0.15rem;
  min-width: 0;
}

.page-faq .faq-hero__meta dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-hero__meta dd {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--frost);
  overflow-wrap: anywhere;
}

/* ---------- 索引 ---------- */
.page-faq .faq-index {
  padding: 2rem 0;
  border-bottom: var(--faq-edge);
}

.page-faq .faq-index__head h2 {
  margin: 0 0 0.4rem;
  font-size: clamp(1.3rem, 4.6vw, 1.75rem);
  letter-spacing: -0.01em;
}

.page-faq .faq-index__head p {
  margin: 0 0 1.25rem;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-tag {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0.6rem;
  padding: 0.9rem 1rem;
  border: var(--faq-edge);
  background: var(--ink-800);
  color: var(--frost);
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-tag__idx {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--orange-500);
}

.page-faq .faq-tag__name {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 0.98rem;
  font-weight: 600;
}

.page-faq .faq-tag__desc {
  flex-basis: 100%;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-tag:hover,
.page-faq .faq-tag:focus-visible {
  border-color: var(--cyan-400);
  background: rgba(27, 94, 140, 0.35);
  transform: translateY(-2px);
  outline: none;
}

/* ---------- 分区 ---------- */
.page-faq .faq-section {
  padding: 2.25rem 0;
  border-bottom: var(--faq-edge);
}

.page-faq .faq-section--support {
  border-bottom: none;
  background-image: radial-gradient(circle at 10% 0%, rgba(69, 242, 214, 0.08), transparent 48%);
}

.page-faq .faq-section__head {
  margin-bottom: 1.5rem;
}

.page-faq .faq-section__no {
  display: inline-block;
  margin-bottom: 0.6rem;
  padding: 0.12rem 0.45rem;
  background: var(--cyan-400);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
}

.page-faq .faq-section__head h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.35rem, 5vw, 2rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-faq .faq-section__sub {
  margin: 0;
  max-width: 62ch;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-section__sub a,
.page-faq .qa-note a,
.page-faq .faq-support__more a {
  color: var(--cyan-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 图文错位 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-split__main {
  min-width: 0;
}

.page-faq .faq-figure {
  margin: 0;
  border: var(--faq-edge);
  background: var(--ink-800);
  box-shadow: 6px 6px 0 rgba(6, 18, 33, 0.9);
}

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

.page-faq .faq-figure--wide img {
  aspect-ratio: 2 / 1;
}

.page-faq .faq-figure figcaption {
  padding: 0.65rem 0.85rem;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 问答卡 ---------- */
.page-faq .qa {
  margin: 0 0 0.7rem;
  border: var(--faq-edge);
  background: var(--ink-800);
  box-shadow: 4px 4px 0 rgba(6, 18, 33, 0.85);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .qa:hover {
  border-color: rgba(69, 242, 214, 0.55);
}

.page-faq .qa[open] {
  border-color: var(--cyan-400);
  box-shadow: var(--faq-glow);
}

.page-faq .qa__summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.95rem 1rem;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__summary::marker {
  content: "";
}

.page-faq .qa__summary:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: -3px;
}

.page-faq .qa__no {
  flex: 0 0 auto;
  padding: 0.16rem 0.36rem;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1;
  color: var(--cyan-400);
}

.page-faq .qa__q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 0.97rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--frost);
}

.page-faq .qa[open] .qa__q {
  color: var(--cyan-200);
}

.page-faq .qa__arrow {
  flex: 0 0 auto;
  width: 0.6rem;
  height: 0.6rem;
  border-right: 2px solid var(--cyan-400);
  border-bottom: 2px solid var(--cyan-400);
  transform: rotate(45deg);
  transition: transform 0.22s ease;
}

.page-faq .qa[open] .qa__arrow {
  transform: rotate(225deg);
}

.page-faq .qa__body {
  padding: 0 1rem 1.05rem;
}

.page-faq .qa__body::before {
  content: "";
  display: block;
  height: 1px;
  margin-bottom: 0.8rem;
  background: var(--line);
}

.page-faq .qa__body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: rgba(234, 248, 255, 0.82);
}

.page-faq .qa-steps {
  list-style: none;
  counter-reset: qa-step;
  margin: 0.85rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .qa-steps:first-child {
  margin-top: 0;
}

.page-faq .qa-steps li {
  counter-increment: qa-step;
  display: grid;
  grid-template-columns: 1.6rem minmax(0, 1fr);
  gap: 0.65rem;
  align-items: start;
  font-size: 0.91rem;
  line-height: 1.7;
  color: rgba(234, 248, 255, 0.82);
}

.page-faq .qa-steps li::before {
  content: counter(qa-step);
  display: grid;
  place-items: center;
  width: 1.6rem;
  height: 1.6rem;
  background: var(--orange-500);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
}

.page-faq .qa-steps li a {
  color: var(--cyan-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa-note {
  margin: 0.9rem 0 0;
  padding-left: 0.75rem;
  border-left: 2px solid var(--cyan-400);
  font-size: 0.85rem;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 客服 ---------- */
.page-faq .faq-support {
  display: grid;
  gap: 1.25rem;
}

.page-faq .faq-support__cards {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .support-card {
  min-width: 0;
  padding: 1rem;
  border: var(--faq-edge);
  background: var(--ink-800);
}

.page-faq .support-card__label {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-faq .support-card__value {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.65;
  color: var(--frost);
  overflow-wrap: anywhere;
}

.page-faq .support-card__value--mono {
  font-family: var(--font-mono);
  color: var(--cyan-400);
}

.page-faq .support-card__hint {
  margin: 0.55rem 0 0;
  font-size: 0.79rem;
  line-height: 1.68;
  color: var(--mist);
}

.page-faq .faq-support__more {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 2rem 0 2.75rem;
  }

  .page-faq .faq-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-faq .faq-tags {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-support__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-index {
    padding: 2.5rem 0;
  }

  .page-faq .faq-tags {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-tag {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
    min-height: 8.5rem;
  }

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

  .page-faq .faq-section {
    padding: 3rem 0;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
    gap: 2rem;
    align-items: start;
  }

  .page-faq .faq-split__figure {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-split__main .qa__summary {
    padding: 1.05rem 1.15rem;
  }

  .page-faq .faq-split__main .qa__body {
    padding: 0 1.15rem 1.15rem;
  }

  .page-faq .faq-support {
    gap: 1.5rem;
  }

  .page-faq .faq-support__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 大桌面 ---------- */
@media (min-width: 1200px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.15rem;
  }

  .page-faq .faq-hero__title {
    max-width: 22ch;
  }
}
<<<END>>>