.page-faq {
  background:
    radial-gradient(120% 80% at 12% 0%, rgba(23, 48, 42, .85) 0%, rgba(11, 31, 28, 0) 60%),
    linear-gradient(180deg, var(--ink-green) 0%, var(--night-blue) 100%);
  color: var(--cream);
  padding-bottom: var(--step-lg);
  overflow-x: hidden;
}

.page-faq .breadcrumb {
  padding-top: clamp(96px, 14vw, 132px);
  font-size: .8125rem;
  color: var(--rock);
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--rock);
}

.page-faq .breadcrumb-list a {
  color: var(--steel);
  text-decoration: none;
}

.page-faq .breadcrumb-list a:hover,
.page-faq .breadcrumb-list a:focus-visible {
  color: var(--lime);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: var(--step-md) 0 0;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: var(--step-md);
}

.page-faq .faq-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--ice);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.4vw, 4.2rem);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--cream);
  text-wrap: balance;
}

.page-faq .faq-lead {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--cream-soft);
}

.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 26px;
  max-width: 620px;
  padding: 8px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: rgba(23, 48, 42, .78);
  transition: border-color .2s ease, box-shadow .2s ease;
}

.page-faq .faq-search:focus-within {
  border-color: var(--lime);
  box-shadow: 0 0 0 4px var(--lime-soft);
}

.page-faq .faq-search-icon {
  flex: 0 0 auto;
  color: var(--ice);
}

.page-faq .faq-search input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 10px 0;
  border: 0;
  background: transparent;
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
}

.page-faq .faq-search input::placeholder {
  color: var(--rock);
}

.page-faq .faq-search input:focus {
  outline: none;
}

.page-faq .faq-search input::-webkit-search-cancel-button {
  filter: invert(1) opacity(.5);
}

.page-faq .faq-count {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--lime);
  white-space: nowrap;
}

.page-faq .faq-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.page-faq .faq-step {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: .875rem;
  color: var(--steel);
}

.page-faq .faq-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-pill);
  background: var(--ice-soft);
  color: var(--ice);
  font-size: .75rem;
}

.page-faq .faq-step:last-child .faq-step-num {
  background: var(--lime-soft);
  color: var(--lime);
}

.page-faq .faq-hint {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: .8125rem;
  line-height: 1.8;
  color: var(--rock);
}

.page-faq .faq-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--moss-deep);
}

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

.page-faq .faq-hero-figure {
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) 6px;
}

/* ---------- 分组胶囊 ---------- */
.page-faq .faq-toc {
  display: flex;
  gap: 10px;
  margin-top: var(--step-md);
  padding: 6px 0 16px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-toc::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-toc a {
  flex: 0 0 auto;
  padding: 9px 17px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: rgba(23, 48, 42, .7);
  color: var(--cream-soft);
  font-size: .875rem;
  text-decoration: none;
  white-space: nowrap;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-faq .faq-toc a:hover,
.page-faq .faq-toc a:focus-visible {
  border-color: var(--lime);
  background: var(--lime-soft);
  color: var(--cream);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: var(--step-md);
  margin-top: var(--step-sm);
}

.page-faq .faq-side {
  display: none;
}

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

.page-faq .faq-group {
  padding-top: var(--step-md);
  scroll-margin-top: 110px;
}

.page-faq .faq-group:first-child {
  padding-top: 0;
}

.page-faq .faq-group + .faq-group {
  margin-top: var(--step-md);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}

.page-faq .faq-group-head .index-num {
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--clay);
}

.page-faq .faq-group h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  letter-spacing: -.01em;
  color: var(--cream);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  margin-bottom: 8px;
  border-left: 2px solid var(--line-strong);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: linear-gradient(90deg, rgba(23, 48, 42, .62), rgba(23, 48, 42, 0) 78%);
  transition: border-color .22s ease, background .22s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--lime);
  background: linear-gradient(90deg, rgba(23, 48, 42, .95), rgba(16, 28, 46, 0) 88%);
}

.page-faq .faq-item[hidden],
.page-faq .faq-group[hidden] {
  display: none;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 18px 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.62;
  color: var(--cream);
}

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: -2px;
  border-radius: var(--radius-sm);
}

.page-faq .faq-index {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--rock);
}

.page-faq .faq-item[open] .faq-index {
  color: var(--lime);
}

.page-faq .faq-qtext {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-toggle {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 5px 0 0 auto;
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  background: var(--ice);
  border-radius: 2px;
  transition: transform .22s ease, opacity .22s ease, background .22s ease;
}

.page-faq .faq-toggle::before {
  left: 0;
  right: 0;
  top: 8px;
  height: 2px;
}

.page-faq .faq-toggle::after {
  top: 0;
  bottom: 0;
  left: 8px;
  width: 2px;
}

.page-faq .faq-item[open] .faq-toggle::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item[open] .faq-toggle::before {
  background: var(--lime);
}

.page-faq .faq-a {
  padding: 0 20px 18px 42px;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--cream-soft);
}

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

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

.page-faq .faq-a ol,
.page-faq .faq-a ul {
  display: grid;
  gap: 7px;
  margin: 10px 0 12px;
  padding-left: 1.15em;
}

.page-faq .faq-a li {
  line-height: 1.75;
}

.page-faq .faq-a li::marker {
  color: var(--ice);
  font-family: var(--font-mono);
}

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

.page-faq .faq-a a:hover,
.page-faq .faq-a a:focus-visible {
  color: var(--lime);
}

.page-faq .faq-media-row {
  display: grid;
  gap: 16px;
  margin-bottom: 8px;
}

.page-faq .faq-inline-figure {
  border-radius: var(--radius-md);
}

.page-faq .faq-inline-figure img {
  aspect-ratio: 16 / 9;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-closing {
  margin-top: var(--step-lg);
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(180, 98, 47, .22) 0%, rgba(16, 28, 46, .9) 55%),
    var(--moss-deep);
}

.page-faq .faq-closing h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .faq-closing p {
  margin: 0;
  max-width: 66ch;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--cream-soft);
}

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

.page-faq .faq-closing a:hover,
.page-faq .faq-closing a:focus-visible {
  color: var(--lime);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-body {
    gap: var(--step-md);
  }

  .page-faq .faq-media-row {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
    gap: 24px;
  }

  .page-faq .faq-media-row .faq-item {
    margin-bottom: 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: end;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-faq .faq-toc {
    padding-bottom: 0;
  }

  .page-faq .faq-body {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
    margin-top: var(--step-md);
  }

  .page-faq .faq-side {
    display: block;
    position: sticky;
    top: 108px;
  }

  .page-faq .faq-side-label {
    margin: 0;
    font-family: var(--font-mono);
    font-size: .75rem;
    letter-spacing: .14em;
    color: var(--rock);
  }

  .page-faq .faq-side-list {
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-side-list a {
    display: block;
    margin-left: -1px;
    padding: 9px 12px;
    border-left: 2px solid transparent;
    color: var(--steel);
    font-size: .875rem;
    text-decoration: none;
    transition: color .2s ease, border-color .2s ease, background .2s ease;
  }

  .page-faq .faq-side-list a:hover,
  .page-faq .faq-side-list a:focus-visible {
    border-left-color: var(--lime);
    background: var(--lime-soft);
    color: var(--cream);
  }

  .page-faq .faq-hero-figure img {
    aspect-ratio: 4 / 3;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-a {
    padding-right: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-toggle::before,
  .page-faq .faq-toggle::after,
  .page-faq .faq-toc a,
  .page-faq .faq-search {
    transition: opacity .2s ease;
  }
}
</main>