.page-faq {
  --faq-line: var(--hair);
  --faq-line-strong: var(--hair-strong);
  --faq-dim: rgba(216, 227, 232, 0.72);
  --faq-amber: var(--c-amber);
  --faq-cyan: var(--c-cyan);
  --faq-lime: var(--c-lime);
  color: var(--c-paper);
  padding-bottom: clamp(48px, 7vw, 110px);
  background:
    radial-gradient(900px 420px at 88% -6%, rgba(33, 212, 224, 0.12), transparent 65%),
    radial-gradient(760px 420px at 2% 22%, rgba(87, 242, 161, 0.06), transparent 70%),
    var(--c-deep);
}

.page-faq .breadcrumbs {
  margin-bottom: clamp(20px, 3vw, 36px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(4px, 1vw, 10px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 22ch;
  font-size: clamp(30px, 5.6vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--c-paper);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.75;
  color: var(--faq-dim);
}

.page-faq .faq-hero__count {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  margin-top: clamp(22px, 3.4vw, 36px);
  padding-top: 16px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(64px, 13vw, 128px);
  line-height: 0.78;
  letter-spacing: -0.04em;
  color: var(--faq-cyan);
}

.page-faq .faq-hero__count-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 6px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--faq-dim);
}

.page-faq .faq-hero__count-meta strong {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--c-paper);
}

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

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

/* 分类快捷条 */
.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border: 1px solid var(--faq-line);
  border-radius: 2px;
  font-size: 14px;
  line-height: 1.2;
  color: var(--c-haze);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  color: var(--c-paper);
  border-color: var(--faq-line-strong);
  background: rgba(33, 212, 224, 0.08);
}

.page-faq .faq-chip__dot {
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 50%;
  background: var(--c-mist);
}

.page-faq .faq-chip--amber .faq-chip__dot { background: var(--faq-amber); }
.page-faq .faq-chip--cyan .faq-chip__dot { background: var(--faq-cyan); }
.page-faq .faq-chip--lime .faq-chip__dot { background: var(--faq-lime); }
.page-faq .faq-chip--mist .faq-chip__dot { background: var(--c-mist); }
.page-faq .faq-chip--haze .faq-chip__dot { background: var(--c-haze); }

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  margin-top: clamp(40px, 6vw, 88px);
  align-items: start;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-faq .faq-rail__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail__link {
  --faq-accent: var(--c-mist);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 11px 10px 11px 14px;
  border-left: 2px solid var(--faq-accent);
  font-size: 14px;
  color: var(--c-haze);
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: rgba(33, 212, 224, 0.08);
  color: var(--c-paper);
}

.page-faq .faq-rail__no {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  color: var(--faq-accent);
}

.page-faq .faq-rail__name {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-faq .faq-rail__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-mist);
}

.page-faq .faq-rail__link--amber { --faq-accent: var(--faq-amber); }
.page-faq .faq-rail__link--cyan { --faq-accent: var(--faq-cyan); }
.page-faq .faq-rail__link--lime { --faq-accent: var(--faq-lime); }
.page-faq .faq-rail__link--mist { --faq-accent: var(--c-mist); }
.page-faq .faq-rail__link--haze { --faq-accent: var(--c-haze); }

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  --faq-accent: var(--c-cyan);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(40px, 5.5vw, 80px);
}

.page-faq #standings { --faq-accent: var(--faq-amber); }
.page-faq #possession { --faq-accent: var(--faq-cyan); }
.page-faq #schedule { --faq-accent: var(--faq-lime); }
.page-faq #devices { --faq-accent: var(--c-mist); }
.page-faq #support { --faq-accent: var(--c-haze); }

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 10px;
  align-items: baseline;
  padding-top: 16px;
  border-top: 1px solid var(--faq-line-strong);
}

.page-faq .faq-group__no {
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1;
  font-weight: 600;
  color: var(--faq-accent);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--c-paper);
}

.page-faq .faq-group__lede {
  grid-column: 1 / -1;
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-dim);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 2px;
  margin-top: 20px;
}

.page-faq .faq-item {
  background: rgba(8, 37, 58, 0.55);
  border: 1px solid var(--faq-line);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--faq-accent);
  background: var(--c-trench);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px clamp(14px, 2vw, 22px);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.5;
  font-weight: 700;
  color: var(--c-paper);
  cursor: pointer;
  list-style: none;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-item__q::-webkit-details-marker { display: none; }
.page-faq .faq-item__q::marker { content: ""; }

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  font-weight: 400;
  color: var(--faq-accent);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--c-paper);
  background: rgba(33, 212, 224, 0.06);
}

.page-faq .faq-item__a {
  padding: clamp(16px, 2.2vw, 24px);
  background: var(--c-paper);
  color: var(--c-ink);
  border-top: 1px solid var(--ink-hair);
  font-size: 16px;
  line-height: 1.72;
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
  max-width: 64ch;
}

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

.page-faq .faq-item__a strong {
  font-weight: 700;
}

.page-faq .faq-item__a a {
  color: var(--c-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--c-ink);
}

/* 步骤条 */
.page-faq .faq-steps {
  counter-reset: faqstep;
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  max-width: 60ch;
  list-style: none;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 15px;
  line-height: 1.65;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep);
  width: 22px;
  height: 22px;
  margin-top: 2px;
  display: grid;
  place-items: center;
  border-radius: 2px;
  background: var(--c-ink);
  color: var(--c-paper);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
}

.page-faq .faq-figure {
  margin: 22px 0 0;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-closing {
  margin-top: clamp(48px, 7vw, 96px);
  padding: clamp(22px, 3.4vw, 40px);
  border: 1px solid var(--faq-line-strong);
  background: linear-gradient(180deg, rgba(8, 37, 58, 0.92), rgba(3, 16, 28, 0.62));
}

.page-faq .faq-closing h2 {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--c-paper);
}

.page-faq .faq-closing p {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-dim);
}

.page-faq .faq-closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-faq .faq-closing__actions .btn {
  min-height: 44px;
}

.page-faq .faq-closing__actions .copy-btn[data-copy-state="done"] {
  border-color: var(--c-lime);
  color: var(--c-lime);
}

.page-faq .faq-closing__note {
  margin-top: 18px;
  font-size: 13px;
}

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

/* ---------- 断点 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: clamp(88px, 12vh, 120px);
    align-self: start;
  }

  .page-faq .faq-rail__list {
    gap: 2px;
  }

  .page-faq .faq-rail__link {
    padding-left: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>