.page-faq {
  --faq-corner: 10px;
  --faq-shadow: 0 0 0 1px rgba(58, 46, 92, 0.6);
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .content-shell {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* 面包屑 */
.page-faq .faq-crumb {
  background: var(--ink);
  border-bottom: 1px solid var(--line-soft);
  padding: 12px 0;
}
.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}
.page-faq .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
}
.page-faq .breadcrumb a:hover {
  color: var(--yellow);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: 44px 0 36px;
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(177, 75, 255, 0.22), transparent 62%),
    radial-gradient(90% 80% at 92% 18%, rgba(34, 230, 216, 0.12), transparent 60%),
    var(--ink);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    180deg,
    rgba(232, 236, 245, 0.035) 0 1px,
    transparent 1px 3px
  );
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}
.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin: 0;
}
.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-size: 30px;
  line-height: 1.24;
  letter-spacing: 0.01em;
  margin: 16px 0 18px;
  max-width: 22ch;
  color: var(--text);
  text-shadow: 0 0 24px rgba(177, 75, 255, 0.4);
}
.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--muted);
}
.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}
.page-faq .faq-hero__chip {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 6px 12px;
  background: rgba(7, 6, 15, 0.6);
}
.page-faq .faq-hero__chip b {
  color: var(--yellow);
  font-weight: 700;
}

/* 快捷直达条 */
.page-faq .faq-quick {
  background: var(--band-deep);
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-quick__inner {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: nowrap;
  overflow-x: auto;
  padding-block: 12px;
  scrollbar-width: thin;
}
.page-faq .faq-quick__label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--violet);
}
.page-faq .faq-quick a {
  flex: none;
  font-size: 13px;
  color: var(--text);
  text-decoration: none;
  padding: 5px 12px;
  border: 1px solid var(--line);
  background: rgba(7, 6, 15, 0.5);
  transition: border-color 0.18s ease, color 0.18s ease;
}
.page-faq .faq-quick a:hover,
.page-faq .faq-quick a:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* 类别目录块 */
.page-faq .faq-cats-section {
  padding: 34px 0 10px;
  background: var(--ink);
}
.page-faq .faq-cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-faq .cat-card {
  position: relative;
  display: block;
  padding: 20px 18px 18px;
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(27, 15, 46, 0.92), rgba(7, 6, 15, 0.94));
  color: var(--text);
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-corner)), calc(100% - var(--faq-corner)) 100%, 0 100%);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.page-faq .cat-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 100%;
  background: var(--violet);
  opacity: 0.9;
}
.page-faq .cat-card:hover,
.page-faq .cat-card:focus-visible {
  border-color: var(--cyan);
  background: linear-gradient(155deg, rgba(34, 230, 216, 0.12), rgba(7, 6, 15, 0.96));
}
.page-faq .cat-card--version::before { background: var(--cyan); }
.page-faq .cat-card--rank::before { background: var(--orange); }
.page-faq .cat-card--account::before { background: var(--yellow); }
.page-faq .cat-card__count {
  display: block;
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1;
  color: var(--yellow);
  font-variant-numeric: tabular-nums;
}
.page-faq .cat-card__name {
  display: block;
  margin-top: 8px;
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.04em;
}
.page-faq .cat-card__desc {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-faq .cat-card__go {
  display: block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--violet);
}

/* 章节通用 */
.page-faq .faq-block {
  position: relative;
  padding: 44px 0;
  border-top: 1px solid var(--line-soft);
  background: var(--ink);
}
.page-faq .faq-block--deep {
  background: linear-gradient(180deg, var(--band-deep) 0%, #0a1220 100%);
}
.page-faq .faq-block--indigo {
  background: linear-gradient(180deg, var(--band-indigo) 0%, #120a20 100%);
}
.page-faq .faq-block--wine {
  background: linear-gradient(180deg, var(--band-wine) 0%, #17070f 100%);
}
.page-faq .faq-block__head {
  max-width: 62ch;
}
.page-faq .faq-block__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  border-left: 3px solid var(--violet);
  padding-left: 10px;
}
.page-faq .faq-block h2 {
  margin: 14px 0 12px;
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.32;
  color: var(--text);
}
.page-faq .faq-block__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}
.page-faq .faq-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  margin-top: 28px;
}
.page-faq .faq-main {
  min-width: 0;
}
.page-faq .faq-sub {
  margin: 30px 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  font-weight: 700;
}
.page-faq .faq-sub:first-child {
  margin-top: 0;
}

/* 步骤块 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-steps li:last-child {
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .faq-steps__no {
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.4;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}
.page-faq .faq-steps h3 {
  margin: 0 0 6px;
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--text);
}
.page-faq .faq-steps p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* 问题折叠列表 */
.page-faq .faq-list {
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-q {
  position: relative;
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .faq-q > summary {
  position: relative;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) 16px;
  gap: 10px;
  align-items: start;
  padding: 15px 0 15px 12px;
  cursor: pointer;
  list-style: none;
  transition: transform 0.18s ease;
}
.page-faq .faq-q > summary::-webkit-details-marker { display: none; }
.page-faq .faq-q > summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: transparent;
  transition: background 0.18s ease;
}
.page-faq .faq-q > summary:hover,
.page-faq .faq-q > summary:focus-visible {
  transform: translateX(8px);
}
.page-faq .faq-q > summary:hover::before,
.page-faq .faq-q > summary:focus-visible::before {
  background: var(--cyan);
}
.page-faq .faq-q__no {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}
.page-faq .faq-q__text {
  font-size: 15px;
  line-height: 1.65;
  font-weight: 600;
  color: var(--text);
}
.page-faq .faq-q__sign {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  text-align: center;
}
.page-faq .faq-q__sign::after { content: "+"; }
.page-faq .faq-q[open] .faq-q__sign::after { content: "−"; }
.page-faq .faq-q[open] .faq-q__sign { color: var(--yellow); }
.page-faq .faq-q[open] .faq-q__text { color: var(--yellow); }
.page-faq .faq-a {
  padding: 2px 0 20px 50px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 60ch;
}
.page-faq .faq-a strong {
  color: var(--text);
  font-weight: 700;
}

/* 旁注列 */
.page-faq .faq-note {
  align-self: start;
  border: 1px solid var(--line);
  background: rgba(7, 6, 15, 0.55);
  padding: 16px 16px 18px;
  box-shadow: var(--faq-shadow);
}
.page-faq .faq-note__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--orange);
}
.page-faq .faq-note dl {
  margin: 14px 0 0;
  display: grid;
  gap: 13px;
}
.page-faq .faq-note dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}
.page-faq .faq-note dd {
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-faq .faq-note__link {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--violet);
  text-decoration: none;
  border-bottom: 1px dashed rgba(177, 75, 255, 0.55);
  padding-bottom: 2px;
}
.page-faq .faq-note__link:hover,
.page-faq .faq-note__link:focus-visible {
  color: var(--yellow);
  border-bottom-color: var(--yellow);
}

/* 图片 */
.page-faq .faq-figure {
  margin: 24px 0 0;
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  background: #05040b;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    180deg,
    rgba(7, 6, 15, 0.3) 0 1px,
    transparent 1px 3px
  );
  pointer-events: none;
}
.page-faq .faq-figure figcaption {
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
  padding: 8px 10px;
  border-top: 1px solid var(--line-soft);
  background: rgba(7, 6, 15, 0.85);
}

/* 判断树 */
.page-faq .faq-tree {
  margin-top: 22px;
  border: 1px solid var(--line);
  background: rgba(7, 6, 15, 0.5);
  padding: 12px;
}
.page-faq .faq-tree svg {
  display: block;
  width: 100%;
  height: auto;
}
.page-faq .faq-tree text {
  font-family: var(--font-body);
  font-size: 13px;
  fill: var(--text);
}

/* 段位泳道 */
.page-faq .rank-lane {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}
.page-faq .rank-lane li {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  padding: 8px 12px;
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(42, 14, 30, 0.6);
}
.page-faq .rank-lane li:last-child {
  border-color: var(--yellow);
  color: var(--yellow);
}

/* 反馈区 */
.page-faq .faq-feedback {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 26px;
}
.page-faq .faq-template {
  border: 1px solid var(--line);
  background: rgba(7, 6, 15, 0.55);
  padding: 18px;
}
.page-faq .faq-template dl {
  margin: 14px 0 0;
  display: grid;
  gap: 14px;
}
.page-faq .faq-template dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--yellow);
}
.page-faq .faq-template dd {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-faq .faq-contact > div {
  border-left: 2px solid var(--orange);
  padding: 2px 0 2px 12px;
}
.page-faq .faq-contact__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}
.page-faq .faq-contact__value {
  display: block;
  margin-top: 6px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-all;
}
.page-faq .faq-contact__hint {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}
.page-faq .faq-feedback__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-faq .btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
  padding: 12px 20px;
  border: 1px solid var(--line);
  color: var(--text);
  background: transparent;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}
.page-faq .btn--primary {
  border-color: var(--violet);
  background: rgba(177, 75, 255, 0.16);
  color: var(--text);
  box-shadow: var(--glow-violet);
}
.page-faq .btn--primary:hover,
.page-faq .btn--primary:focus-visible {
  border-color: var(--yellow);
  background: rgba(255, 216, 77, 0.14);
  color: var(--yellow);
}
.page-faq .btn--ghost:hover,
.page-faq .btn--ghost:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* 桌面布局 */
@media (min-width: 720px) {
  .page-faq .faq-hero { padding: 62px 0 52px; }
  .page-faq .faq-hero__title { font-size: 40px; }
  .page-faq .faq-hero__lede { font-size: 16px; }
  .page-faq .faq-block { padding: 58px 0; }
  .page-faq .faq-block h2 { font-size: 30px; }
  .page-faq .faq-cats-section { padding: 46px 0 14px; }

  .page-faq .faq-cats {
    grid-template-columns: repeat(12, 1fr);
    gap: 18px;
    align-items: start;
  }
  .page-faq .cat-card--install { grid-column: span 5; }
  .page-faq .cat-card--version { grid-column: span 4; margin-top: 44px; }
  .page-faq .cat-card--rank { grid-column: 2 / span 4; }
  .page-faq .cat-card--account { grid-column: span 5; margin-top: -18px; }

  .page-faq .faq-feedback {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 30px;
  }
  .page-faq .faq-contact {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-cols {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: 46px;
  }
  .page-faq .faq-hero__title { font-size: 48px; }
  .page-faq .faq-block h2 { font-size: 32px; }
  .page-faq .faq-q__text { font-size: 15.5px; }
  .page-faq .faq-contact {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q > summary,
  .page-faq .cat-card,
  .page-faq .btn {
    transition: none;
  }
  .page-faq .faq-q > summary:hover,
  .page-faq .faq-q > summary:focus-visible {
    transform: none;
  }
}
</main>
<<<END>>>