.page-faq {
  --faq-strip-w: 220px;
  --faq-body: #C3CDE6;
  --faq-accent: var(--orange);
  background: var(--void);
  color: var(--white);
}

.page-faq a {
  color: var(--cyan);
  text-decoration-color: rgba(77, 225, 255, 0.4);
  text-underline-offset: 3px;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}

.page-faq a:hover,
.page-faq a:focus-visible {
  color: var(--white);
  text-decoration-color: var(--orange);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(22px, 4vw, 44px) clamp(36px, 5vw, 76px);
  background:
    radial-gradient(110% 80% at 92% -12%, rgba(108, 77, 255, 0.22), transparent 62%),
    radial-gradient(90% 65% at 0% 100%, rgba(77, 225, 255, 0.1), transparent 60%),
    linear-gradient(180deg, var(--void) 0%, var(--chart) 72%, var(--void) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  top: 14%;
  width: 46%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--violet), transparent);
  transform: rotate(-18deg);
  opacity: 0.55;
  pointer-events: none;
}

.page-faq .faq-hero .crumbs {
  margin-bottom: clamp(24px, 4vw, 46px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  align-items: end;
}

.page-faq .faq-hero__coord {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.18em;
  margin: 0 0 14px;
}

.page-faq .faq-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(38px, 7.4vw, 82px);
  line-height: 1.02;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-faq .faq-hero__lede {
  max-width: 54ch;
  margin: 0;
  color: var(--faq-body);
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__figure .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--wire);
  filter: saturate(1.05);
}

.page-faq .faq-hero__figure .media-frame__cap {
  margin-top: 10px;
  color: var(--steel);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- 分类索引条 ---------- */
.page-faq .faq-index {
  list-style: none;
  margin: clamp(30px, 4vw, 52px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--wire);
  border: 1px solid var(--wire);
}

.page-faq .faq-index__link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  height: 100%;
  padding: 15px 16px;
  background: var(--chart);
  border-left: 3px solid transparent;
  color: var(--white);
  text-decoration: none;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--hull);
  border-left-color: var(--orange);
  transform: translateY(-2px);
}

.page-faq .faq-index__no {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-faq .faq-index__name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-faq .faq-index__hint {
  flex-basis: 100%;
  color: var(--steel);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-cat {
  padding-block: clamp(38px, 6vw, 86px);
  border-top: 1px solid var(--wire);
}

.page-faq .faq-cat--tools { --faq-accent: var(--orange); }
.page-faq .faq-cat--update { --faq-accent: var(--violet); background: var(--chart); }
.page-faq .faq-cat--export { --faq-accent: var(--cyan); }
.page-faq .faq-cat--player { --faq-accent: var(--mint); }
.page-faq .faq-cat--collect { --faq-accent: var(--violet); background: var(--chart); }
.page-faq .faq-cat--support {
  --faq-accent: var(--orange);
  background: linear-gradient(180deg, var(--void) 0%, var(--hull) 100%);
}

.page-faq .faq-cat__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-faq .faq-cat__strip {
  padding-left: 14px;
  border-left: 3px solid var(--faq-accent);
}

.page-faq .faq-cat__no {
  display: block;
  margin-bottom: 10px;
  color: var(--faq-accent);
  font-size: 12px;
  letter-spacing: 0.2em;
}

.page-faq .faq-cat__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.22;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-faq .faq-cat__note {
  margin: 0;
  color: var(--steel);
  font-size: 14px;
  line-height: 1.75;
}

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

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  background: var(--void);
  padding: clamp(18px, 2.6vw, 28px) clamp(16px, 2.4vw, 30px);
  border-left: 2px solid transparent;
  transition: border-color 180ms ease, background 180ms ease;
}

.page-faq .qa:hover {
  border-left-color: var(--faq-accent);
  background: #070D1C;
}

.page-faq .qa__q {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  margin: 0 0 10px;
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
}

.page-faq .qa__no {
  flex: 0 0 auto;
  color: var(--faq-accent);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-faq .qa__a {
  color: var(--faq-body);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .qa__a p {
  margin: 0 0 10px;
}

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

.page-faq .qa__a .dot-list {
  margin: 4px 0 0;
  color: var(--faq-body);
}

.page-faq .qa__a .dot-list li {
  margin-bottom: 6px;
  line-height: 1.75;
}

.page-faq .qa__a .dot-list li:last-child {
  margin-bottom: 0;
}

.page-faq .faq-mail {
  color: var(--cyan);
  overflow-wrap: anywhere;
  word-break: break-all;
}

/* ---------- 折叠补充 ---------- */
.page-faq .fold {
  margin-top: 14px;
  border-top: 1px dashed var(--wire);
  padding-top: 12px;
}

.page-faq .fold__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--wire);
  border-radius: 0;
  padding: 8px 14px;
  color: var(--cyan);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}

.page-faq .fold__btn:hover,
.page-faq .fold__btn:focus-visible {
  border-color: var(--cyan);
  background: rgba(77, 225, 255, 0.08);
}

.page-faq .fold__btn .fold__sign {
  color: var(--faq-accent);
  font-family: var(--font-mono);
}

.page-faq .fold__panel p {
  margin: 12px 0 0;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 章节内信息图 ---------- */
.page-faq .faq-figure {
  margin: 0;
  background: var(--void);
  padding: clamp(14px, 2vw, 20px);
}

.page-faq .faq-figure .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--wire);
}

.page-faq .faq-figure .media-frame__cap {
  margin-top: 10px;
  color: var(--steel);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-cat__grid {
    grid-template-columns: var(--faq-strip-w) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 76px);
    align-items: start;
  }

  .page-faq .faq-cat__strip {
    position: sticky;
    top: calc(var(--top-h) + 28px);
  }

  .page-faq .faq-cat--update .faq-cat__grid,
  .page-faq .faq-cat--collect .faq-cat__grid {
    grid-template-columns: minmax(0, 1fr) var(--faq-strip-w);
  }

  .page-faq .faq-cat--update .faq-cat__strip,
  .page-faq .faq-cat--collect .faq-cat__strip {
    order: 2;
    border-left: 0;
    border-right: 3px solid var(--faq-accent);
    padding-left: 0;
    padding-right: 14px;
    text-align: right;
  }
}

@media (max-width: 480px) {
  .page-faq .qa__q {
    font-size: 16px;
  }

  .page-faq .qa__a {
    font-size: 15px;
  }
}

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