.page-faq {
  background:
    radial-gradient(120% 55% at 82% -8%, rgba(30, 58, 85, 0.6), transparent 62%),
    var(--ink-900);
  color: var(--text-mist);
  padding-bottom: clamp(56px, 8vw, 100px);
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: clamp(18px, 3vw, 30px) 0 0;
  font-size: var(--fs-14);
  font-family: var(--font-serif);
}

.page-faq .breadcrumbs a {
  color: var(--gold-200);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--gold-500);
  text-decoration: underline;
}

.page-faq .breadcrumbs .sep {
  color: rgba(233, 228, 216, 0.42);
}

.page-faq .breadcrumbs [aria-current] {
  color: var(--text-mist);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero-grid {
  display: grid;
  gap: 28px;
  padding: clamp(22px, 4vw, 38px) 0 clamp(32px, 5vw, 58px);
}

.page-faq .faq-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 6.2vw, 2.5rem);
  line-height: 1.24;
  letter-spacing: 0.01em;
  color: var(--text-mist);
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: rgba(233, 228, 216, 0.82);
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
}

.page-faq .faq-meta span {
  padding: 4px 13px;
  border: 1px solid rgba(217, 166, 60, 0.34);
  border-radius: 999px;
  font-family: var(--font-serif);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--gold-200);
}

.page-faq .faq-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(227, 217, 198, 0.16);
  border-radius: var(--radius-l);
  background: var(--ink-700);
}

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

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid rgba(227, 217, 198, 0.12);
  font-family: var(--font-serif);
  font-size: var(--fs-12);
  line-height: 1.6;
  color: rgba(233, 228, 216, 0.62);
}

/* ---------- 主体分栏 ---------- */

.page-faq .faq-body {
  display: grid;
  gap: 30px;
  padding-top: clamp(6px, 2vw, 16px);
}

.page-faq .faq-rail-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--gold-500);
}

.page-faq .faq-rail-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  overflow-x: auto;
  list-style: none;
  scrollbar-width: thin;
}

.page-faq .faq-rail-list li {
  flex: 0 0 auto;
}

.page-faq .faq-rail-list a {
  display: block;
  padding: 10px 14px;
  border: 1px solid rgba(227, 217, 198, 0.18);
  border-radius: 999px;
  font-size: var(--fs-14);
  white-space: nowrap;
  color: var(--text-mist);
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  border-color: var(--celadon-500);
  background: rgba(111, 163, 155, 0.14);
  color: var(--gold-200);
}

/* ---------- 主题分组 ---------- */

.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(44px, 6vw, 70px);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(227, 217, 198, 0.18);
}

.page-faq .faq-group-num {
  font-family: var(--font-serif);
  font-size: var(--fs-28);
  line-height: 1;
  color: var(--gold-500);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-21);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-mist);
}

.page-faq .faq-group-lede {
  max-width: 62ch;
  margin: 14px 0 20px;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: rgba(233, 228, 216, 0.72);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-item {
  border: 1px solid rgba(227, 217, 198, 0.14);
  border-radius: var(--radius-m);
  background: rgba(18, 40, 62, 0.62);
  transition: background-color 0.28s ease, border-color 0.28s ease, transform 0.28s ease, box-shadow 0.28s ease;
}

.page-faq .faq-item + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-item[open] {
  background: var(--parchment-100);
  border-color: var(--parchment-300);
  color: var(--text-ink);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 18px;
  font-family: var(--font-display);
  font-size: var(--fs-17);
  font-weight: 700;
  line-height: 1.6;
  color: inherit;
  list-style: none;
  cursor: pointer;
}

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

.page-faq .faq-q::marker {
  content: "";
}

.page-faq .faq-q::after {
  content: "+";
  flex: none;
  font-family: var(--font-serif);
  font-size: var(--fs-21);
  line-height: 1.1;
  color: var(--gold-500);
  transition: transform 0.28s ease, color 0.28s ease;
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--celadon-500);
  outline-offset: -2px;
  border-radius: var(--radius-m);
}

.page-faq .faq-item[open] .faq-q::after {
  transform: rotate(45deg);
  color: var(--cinnabar-600);
}

.page-faq .faq-a {
  padding: 0 18px 18px;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--text-ink);
}

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

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

.page-faq .faq-item[open] .faq-a {
  animation: faqReveal 0.3s ease both;
}

@keyframes faqReveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 排查顺序 ---------- */

.page-faq .faq-steps {
  display: grid;
  gap: 6px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 8px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--text-ink);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep);
  font-family: var(--font-serif);
  font-weight: 700;
  text-align: right;
  color: var(--cinnabar-600);
}

/* ---------- 分组配图 ---------- */

.page-faq .faq-group-figure {
  margin: 22px 0 0;
  overflow: hidden;
  border: 1px solid rgba(227, 217, 198, 0.16);
  border-radius: var(--radius-m);
  background: var(--ink-700);
}

.page-faq .faq-group-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq .faq-group-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid rgba(227, 217, 198, 0.12);
  font-family: var(--font-serif);
  font-size: var(--fs-12);
  line-height: 1.6;
  color: rgba(233, 228, 216, 0.66);
}

/* ---------- 人工支持 ---------- */

.page-faq .faq-help {
  margin-top: clamp(52px, 8vw, 88px);
}

.page-faq .faq-help-inner {
  display: grid;
  gap: 18px;
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid rgba(217, 166, 60, 0.3);
  border-radius: var(--radius-l);
  background:
    linear-gradient(142deg, var(--ink-700) 0%, var(--ink-900) 72%);
  box-shadow: var(--shadow-deep);
}

.page-faq .faq-help-inner h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-28);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-mist);
}

.page-faq .faq-help-inner p {
  max-width: 62ch;
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: rgba(233, 228, 216, 0.8);
}

.page-faq .faq-help-channels {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  font-family: var(--font-serif);
  font-size: var(--fs-14);
  color: var(--text-mist);
}

.page-faq .faq-help-channels a {
  color: var(--gold-200);
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 214, 154, 0.4);
}

.page-faq .faq-help-channels a:hover,
.page-faq .faq-help-channels a:focus-visible {
  color: var(--gold-500);
  border-bottom-color: var(--gold-500);
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 桌面布局 ---------- */

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: center;
    gap: 54px;
  }

  .page-faq .faq-body {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-rail-list li {
    flex: none;
  }

  .page-faq .faq-rail-list a {
    padding: 9px 0 9px 14px;
    border: 0;
    border-left: 2px solid rgba(227, 217, 198, 0.16);
    border-radius: 0;
    font-size: var(--fs-17);
    white-space: normal;
    line-height: 1.6;
    color: rgba(233, 228, 216, 0.74);
  }

  .page-faq .faq-rail-list a:hover,
  .page-faq .faq-rail-list a:focus-visible {
    border-left-color: var(--celadon-500);
    background: transparent;
    color: var(--gold-200);
  }

  .page-faq .faq-q {
    padding: 18px 24px;
  }

  .page-faq .faq-a {
    padding: 0 24px 22px;
  }

  .page-faq .faq-help-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "title actions"
      "text actions"
      "channels channels";
    align-items: center;
    column-gap: 40px;
  }

  .page-faq .faq-help-inner h2 {
    grid-area: title;
  }

  .page-faq .faq-help-inner > p {
    grid-area: text;
  }

  .page-faq .faq-help-channels {
    grid-area: channels;
    padding-top: 6px;
    border-top: 1px solid rgba(227, 217, 198, 0.14);
  }

  .page-faq .faq-help-actions {
    grid-area: actions;
    flex-direction: column;
    align-items: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-q::after,
  .page-faq .faq-rail-list a {
    transition: none;
  }

  .page-faq .faq-item[open] {
    transform: none;
  }

  .page-faq .faq-item[open] .faq-a {
    animation: none;
  }
}