.page-faq {
  background: var(--night);
  color: var(--paper);
  --faq-soft: rgba(237, 232, 220, 0.78);
  --faq-edge: rgba(142, 154, 147, 0.42);
}

.page-faq [id^="g-"] {
  scroll-margin-top: 72px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  background: var(--night);
  border-bottom: var(--line) solid var(--rock-2);
  padding: clamp(22px, 4vw, 44px) 0 clamp(38px, 6vw, 76px);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(26px, 4vw, 46px);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

.page-faq .breadcrumb-link {
  color: var(--mist);
  text-decoration: none;
}

.page-faq .breadcrumb-link:hover,
.page-faq .breadcrumb-link:focus-visible {
  color: var(--cyan);
}

.page-faq .breadcrumb-current {
  color: var(--paper);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.page-faq h1 {
  margin: 0 0 20px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(2.1rem, 5.4vw, 3.7rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-faq .faq-lede {
  max-width: 56ch;
  margin: 0 0 26px;
  font-size: 1.02rem;
  line-height: 1.78;
  color: var(--faq-soft);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: var(--line) solid var(--rock-2);
  color: var(--paper);
  font-size: 0.86rem;
  text-decoration: none;
  transition: border-color 160ms ease, transform 160ms ease, color 160ms ease;
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-jump-num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--cyan);
}

.page-faq .faq-hero-figure {
  margin: 0;
  border: var(--line) solid var(--rock-2);
  overflow: hidden;
}

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

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  padding: clamp(38px, 6.5vw, 84px) 0;
  border-bottom: var(--line) solid var(--rock-2);
}

.page-faq .faq-group--paper {
  background: var(--paper);
  color: var(--ink);
  --faq-soft: rgba(27, 33, 31, 0.75);
  --faq-edge: rgba(27, 33, 31, 0.22);
  border-bottom-color: rgba(27, 33, 31, 0.24);
}

.page-faq .faq-group-head {
  margin-bottom: clamp(22px, 3.6vw, 38px);
  padding-left: 18px;
  border-left: 6px solid var(--moss);
}

.page-faq .faq-group--clay .faq-group-head,
.page-faq .faq-group-head--dark {
  border-left-color: var(--clay);
}

.page-faq .faq-num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-group--paper .faq-num {
  color: var(--cyan-deep);
}

.page-faq .faq-group-head h2 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-faq .faq-group-note {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--faq-soft);
}

.page-faq .faq-group-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  border-top: var(--line) solid var(--faq-edge);
}

.page-faq .qa {
  border-bottom: var(--line) solid var(--faq-edge);
  transition: border-color 160ms ease;
}

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

.page-faq .faq-group--paper .qa[open] {
  border-bottom-color: var(--cyan-deep);
}

.page-faq .qa-q {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 22px;
  gap: 12px;
  align-items: start;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  transition: color 160ms ease;
}

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

.page-faq .qa-q::after {
  content: "+";
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1.4;
  color: var(--mist);
}

.page-faq .qa[open] .qa-q::after {
  content: "–";
  color: var(--cyan);
}

.page-faq .faq-group--paper .qa[open] .qa-q::after {
  color: var(--cyan-deep);
}

.page-faq .qa-q:hover,
.page-faq .qa-q:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-group--paper .qa-q:hover,
.page-faq .faq-group--paper .qa-q:focus-visible {
  color: var(--cyan-deep);
}

.page-faq .qa-num {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--mist);
}

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

.page-faq .faq-group--paper .qa[open] .qa-num {
  color: var(--cyan-deep);
}

.page-faq .qa-text {
  min-width: 0;
}

.page-faq .qa-a {
  padding: 0 0 20px 64px;
}

.page-faq .qa-a p {
  max-width: 62ch;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--faq-soft);
}

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

.page-faq .faq-group--paper .qa-a a {
  color: var(--cyan-deep);
}

/* ---------- 侧栏配图 ---------- */
.page-faq .faq-side-figure {
  margin: 0;
}

.page-faq .faq-side-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--line) solid var(--faq-edge);
  object-fit: cover;
}

.page-faq .figure-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--clay);
}

/* ---------- 求助路径 ---------- */
.page-faq .faq-help {
  background: var(--night);
  padding: clamp(38px, 6.5vw, 84px) 0 clamp(46px, 7vw, 92px);
}

.page-faq .help-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-faq .help-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 22px;
  border: var(--line) solid var(--rock-2);
  color: var(--paper);
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.page-faq a.help-card:hover,
.page-faq a.help-card:focus-visible {
  background: var(--paper);
  border-color: var(--cyan);
  color: var(--ink);
  --faq-soft: rgba(27, 33, 31, 0.78);
}

.page-faq .help-num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-faq a.help-card:hover .help-num,
.page-faq a.help-card:focus-visible .help-num {
  color: var(--cyan-deep);
}

.page-faq .help-card h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.22rem;
  letter-spacing: -0.01em;
}

.page-faq .help-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--faq-soft);
}

.page-faq .help-action {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
}

.page-faq a.help-card:hover .help-action,
.page-faq a.help-card:focus-visible .help-action {
  color: var(--cyan-deep);
}

.page-faq .help-card--static {
  border-style: dashed;
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .page-faq .qa-q {
    grid-template-columns: 36px minmax(0, 1fr) 20px;
    gap: 10px;
    font-size: 0.95rem;
  }

  .page-faq .qa-a {
    padding-left: 46px;
  }

  .page-faq .faq-group-head {
    padding-left: 14px;
    border-left-width: 5px;
  }
}

@media (min-width: 700px) {
  .page-faq .help-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
  }

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

@media (min-width: 1040px) {
  .page-faq .faq-group-body--split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    align-items: start;
  }
}