.page-faq {
  --faq-rail-w: 208px;
  --faq-gap: 28px;
  --faq-anchor: 104px;
  display: block;
  background: var(--ink-900);
  color: var(--text);
  padding-bottom: 72px;
  overflow-x: clip;
}

.page-faq .breadcrumb {
  padding-top: 18px;
  font-size: 13px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 38px;
  background:
    radial-gradient(112% 96% at 82% 2%, rgba(123, 77, 255, 0.30), transparent 62%),
    radial-gradient(88% 70% at 8% 0%, rgba(198, 255, 61, 0.10), transparent 58%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ink-line) 18%, var(--ink-line) 78%, transparent);
  transform: rotate(-0.35deg);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 26px;
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-size: clamp(28px, 6.4vw, 54px);
  line-height: 1.08;
  font-weight: 900;
  font-style: italic;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-hero__media {
  position: relative;
  border: 1px solid var(--ink-line);
  background: var(--ink-panel);
  clip-path: polygon(0 0, 100% 0, 100% 82%, 90% 100%, 0 100%);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}

.page-faq .faq-hero__media .media-frame__caption {
  padding: 10px 16px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 控制台式双栏 ---------- */

.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  margin-top: 30px;
}

.page-faq .faq-rail {
  border-top: 2px solid var(--lime);
  padding-top: 14px;
}

.page-faq .faq-rail__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--muted);
}

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

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 12px 9px 11px;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--text);
  border-left-color: var(--lime);
  background: rgba(198, 255, 61, 0.07);
  outline: none;
}

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

.page-faq .faq-rail__note {
  margin: 16px 0 0;
  padding-left: 13px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  border-left: 1px solid var(--ink-line);
}

.page-faq .faq-groups {
  display: grid;
  gap: 44px;
  min-width: 0;
}

/* ---------- 问答组 ---------- */

.page-faq .faq-group {
  scroll-margin-top: var(--faq-anchor);
  min-width: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 11px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--ink-line);
  position: relative;
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 62px;
  height: 2px;
  background: var(--lime);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: 21px;
  line-height: 1.25;
  font-weight: 800;
  font-style: italic;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-group__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  margin-left: auto;
  white-space: nowrap;
}

.page-faq .faq-group__list {
  display: grid;
  gap: 9px;
}

/* ---------- 展开条目 ---------- */

.page-faq .disclosure {
  background: var(--ink-panel);
  border: 1px solid var(--ink-line);
  border-radius: 2px;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .disclosure:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(10, 16, 36, 0.55);
}

.page-faq .disclosure.is-open {
  border-color: rgba(198, 255, 61, 0.65);
}

.page-faq .disclosure__trigger {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  width: 100%;
  margin: 0;
  padding: 15px 16px;
  background: none;
  border: 0;
  color: var(--text);
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
}

.page-faq .disclosure__trigger:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .disclosure__mark {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-radius: 50%;
  border: 1px solid var(--ink-line);
  background: transparent;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .disclosure.is-open .disclosure__mark {
  background: var(--lime);
  border-color: var(--lime);
  box-shadow: 0 0 0 4px rgba(198, 255, 61, 0.16);
}

.page-faq .disclosure.is-open .disclosure__q {
  color: var(--lime);
}

.page-faq .disclosure__body {
  margin: 0 1px 1px;
  padding: 15px 18px 17px 38px;
  background: var(--pale);
  color: var(--ink-900);
  font-size: 14.5px;
  line-height: 1.78;
  border-radius: 0 0 1px 1px;
}

.page-faq .faq-em {
  font-family: var(--font-mono);
  font-size: 1.04em;
  font-weight: 700;
  color: #1D3A0B;
  background: rgba(198, 255, 61, 0.55);
  padding: 0 3px;
  border-radius: 2px;
}

.page-faq .faq-link {
  display: inline-block;
  margin-left: 6px;
  color: #1B1650;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq .faq-link:hover {
  color: #7B4DFF;
}

/* ---------- 同步状态面板 ---------- */

.page-faq .faq-sync {
  margin-bottom: 18px;
  padding: 16px 18px 18px;
  background:
    linear-gradient(180deg, rgba(27, 22, 80, 0.55), rgba(18, 26, 58, 0.9));
  border: 1px solid var(--ink-line);
  border-left: 3px solid var(--violet);
  border-radius: 2px;
}

.page-faq .faq-sync__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--muted);
}

.page-faq .faq-sync__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  border-top: 1px solid rgba(34, 48, 95, 0.7);
  font-size: 13.5px;
}

.page-faq .faq-sync__device {
  color: var(--text);
}

.page-faq .faq-sync__state {
  font-size: 12px;
  color: var(--lime);
}

.page-faq .faq-sync__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(34, 48, 95, 0.7);
}

.page-faq .faq-sync__bar-label {
  font-size: 12.5px;
  color: var(--muted);
  white-space: nowrap;
}

.page-faq .faq-sync__bar .data-bar__track {
  flex: 1 1 auto;
  min-width: 0;
  height: 6px;
  background: rgba(34, 48, 95, 0.85);
  border-radius: 999px;
  overflow: hidden;
  display: block;
}

.page-faq .faq-sync__bar .data-bar__fill {
  display: block;
  height: 100%;
  width: calc(var(--value, 0) * 100%);
  background: linear-gradient(90deg, var(--violet), var(--lime));
  border-radius: 999px;
  transition: width 0.6s var(--ease);
}

.page-faq .faq-sync__bar-val {
  font-size: 12px;
  color: var(--orange);
  white-space: nowrap;
}

/* ---------- 人工客服 ---------- */

.page-faq .faq-help {
  margin-top: 56px;
  padding: 40px 0 8px;
  background:
    radial-gradient(90% 120% at 88% 110%, rgba(123, 77, 255, 0.28), transparent 64%),
    linear-gradient(180deg, rgba(27, 22, 80, 0.0), rgba(27, 22, 80, 0.5));
  border-top: 1px solid var(--ink-line);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-help__media {
  border: 1px solid var(--ink-line);
  background: var(--ink-panel);
  clip-path: polygon(0 0, 100% 0, 100% 88%, 86% 100%, 0 100%);
}

.page-faq .faq-help__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05) brightness(0.94);
}

.page-faq .faq-help__title {
  margin: 0;
  font-size: clamp(22px, 4.4vw, 32px);
  line-height: 1.2;
  font-weight: 800;
  font-style: italic;
  letter-spacing: -0.02em;
}

.page-faq .faq-help__lead {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-help__list {
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
}

.page-faq .faq-help__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  padding: 12px 14px;
  background: var(--ink-panel);
}

.page-faq .faq-help__key {
  flex: 0 0 92px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .faq-help__val {
  margin: 0;
  font-size: 14px;
  color: var(--text);
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .faq-help__val.mono {
  font-family: var(--font-mono);
  color: var(--orange);
  font-size: 14.5px;
}

.page-faq .faq-help__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-help__note .faq-link {
  color: var(--lime);
}

.page-faq .faq-help__note .faq-link:hover {
  color: var(--text);
}

/* ---------- 底部引导 ---------- */

.page-faq .faq-foot {
  margin: 46px 0 0;
  padding: 20px 0 0;
  border-top: 1px dashed var(--ink-line);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-foot__link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, 0.45);
  padding-bottom: 1px;
}

.page-faq .faq-foot__link:hover {
  color: var(--text);
  border-bottom-color: var(--text);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 34px 0 48px;
  }

  .page-faq .faq-hero__lead {
    font-size: 16px;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
    gap: 34px;
    align-items: center;
  }

  .page-faq .faq-help__media {
    order: -1;
  }
}

@media (min-width: 900px) {
  .page-faq {
    --faq-rail-w: 212px;
    --faq-gap: 44px;
    padding-bottom: 96px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 1fr);
    gap: 44px;
  }

  .page-faq .faq-layout {
    margin-top: 8px;
  }

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

  .page-faq .faq-groups {
    gap: 52px;
  }

  .page-faq .faq-group__title {
    font-size: 24px;
  }

  .page-faq .disclosure__trigger {
    font-size: 15.5px;
    padding: 16px 20px;
  }

  .page-faq .disclosure__body {
    padding: 16px 22px 18px 42px;
    font-size: 15px;
  }

  .page-faq .faq-help {
    margin-top: 72px;
    padding: 56px 0 24px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero__media {
    margin-bottom: -30px;
  }

  .page-faq .faq-help__grid {
    gap: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .disclosure,
  .page-faq .disclosure__mark,
  .page-faq .faq-sync__bar .data-bar__fill,
  .page-faq .faq-rail__link {
    transition: none;
  }

  .page-faq .disclosure:hover {
    transform: none;
  }
}

.page-faq {
  --value: 1rem;
}