.page-faq {
  background:
    radial-gradient(1100px 540px at 84% -14%, rgba(240, 138, 44, 0.16), transparent 60%),
    radial-gradient(860px 560px at -10% 32%, rgba(47, 182, 168, 0.1), transparent 64%),
    var(--ink-900);
  color: var(--dim);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: clip;
}

.page-faq .breadcrumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--dim);
  opacity: 0.82;
  padding: 22px 0 0;
}

.page-faq .breadcrumbs a {
  color: var(--dim);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .breadcrumbs a:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-faq .breadcrumbs__sep {
  margin: 0 8px;
  color: var(--orange);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 18px 0 6px;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: center;
}

.page-faq .faq-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--orange);
  margin: 20px 0 14px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: 29px;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--bright);
  margin: 0 0 16px;
}

.page-faq .faq-hero__lead {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--dim);
  margin: 0;
  max-width: 62ch;
}

.page-faq .faq-hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(14, 26, 46, 0.1), rgba(14, 26, 46, 0.52));
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.02);
}

/* ---------- 分类标签 ---------- */
.page-faq .faq-tabs {
  margin-top: 32px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(22, 38, 63, 0.55);
}

.page-faq .faq-tabs__inner {
  padding: 18px 0;
}

.page-faq .faq-tabs__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--teal);
  margin: 0 0 12px;
}

.page-faq .faq-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--dim);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 13px;
  background: rgba(14, 26, 46, 0.55);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  color: var(--bright);
  border-color: var(--teal);
  background: rgba(47, 182, 168, 0.14);
}

.page-faq .faq-tab[data-active] {
  color: var(--bright);
  border-color: var(--orange);
  background: rgba(240, 138, 44, 0.14);
}

.page-faq .faq-tab__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--orange);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding: 38px 0 0;
}

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

.page-faq .faq-group {
  scroll-margin-top: 88px;
  margin-bottom: 46px;
}

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

.page-faq .faq-group .section-head {
  margin-bottom: 12px;
}

.page-faq .faq-group__intro {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--dim);
  margin: 0 0 18px;
  max-width: 66ch;
}

/* ---------- 问答项 ---------- */
.page-faq .qa {
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-faq .qa[open] {
  border-left-color: var(--orange);
  box-shadow: var(--shadow-1);
}

.page-faq .qa__q {
  position: relative;
  display: flex;
  gap: 12px;
  padding: 14px 46px 14px 16px;
  background: var(--paper);
  color: var(--dark);
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.2s var(--ease);
}

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

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

.page-faq .qa__q:hover {
  background: #EFE9DD;
}

.page-faq .qa[open] .qa__q {
  background: #EDE6D9;
}

.page-faq .qa__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--brick);
  padding-top: 4px;
}

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

.page-faq .qa__mark {
  position: absolute;
  right: 16px;
  top: 50%;
  width: 14px;
  height: 14px;
  transform: translateY(-50%);
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--dark);
}

.page-faq .qa__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .qa__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
  transition: transform 0.22s var(--ease);
}

.page-faq .qa[open] .qa__mark::after {
  transform: scaleY(0);
}

.page-faq .qa__a {
  padding: 16px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(22, 38, 63, 0.92), rgba(14, 26, 46, 0.96));
}

.page-faq .qa__a p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--dim);
}

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

.page-faq .qa__a a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 182, 168, 0.45);
}

.page-faq .qa__a a:hover {
  color: var(--bright);
  border-bottom-color: var(--bright);
}

/* ---------- 侧栏引导条 ---------- */
.page-faq .faq-aside {
  min-width: 0;
}

.page-faq .help-card {
  border: 1px solid rgba(47, 182, 168, 0.5);
  border-top: 3px solid var(--teal);
  border-radius: var(--radius);
  padding: 20px;
  background: linear-gradient(180deg, rgba(47, 182, 168, 0.11), rgba(22, 38, 63, 0.74));
}

.page-faq .help-card__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--teal);
  margin: 0 0 10px;
}

.page-faq .help-card__title {
  font-size: 19px;
  line-height: 1.35;
  color: var(--bright);
  margin: 0 0 10px;
}

.page-faq .help-card__text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--dim);
  margin: 0 0 16px;
}

.page-faq .help-card__list {
  margin: 0 0 18px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .help-card__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .help-card__row dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--dim);
  opacity: 0.82;
  flex: 0 0 auto;
}

.page-faq .help-card__row dd {
  margin: 0;
  font-size: 13.5px;
  color: var(--bright);
  text-align: right;
  word-break: break-all;
}

.page-faq .help-card__btn {
  width: 100%;
  justify-content: center;
  text-align: center;
}

/* ---------- 底部联系带 ---------- */
.page-faq .faq-band {
  padding: 8px 0 62px;
}

.page-faq .faq-band__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius) var(--radius) 0 0;
  overflow: hidden;
  background: var(--ink-800);
}

.page-faq .faq-band__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.78) brightness(0.82);
}

.page-faq .faq-band__figure figcaption {
  position: absolute;
  left: 16px;
  bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--bright);
  background: rgba(14, 26, 46, 0.78);
  border-left: 3px solid var(--orange);
  padding: 6px 10px;
}

.page-faq .faq-band__panel {
  border: 1px solid var(--line);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 26px 20px 28px;
  background: linear-gradient(180deg, rgba(22, 38, 63, 0.92), rgba(14, 26, 46, 0.97));
}

.page-faq .faq-band__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange);
  margin: 0 0 12px;
}

.page-faq .faq-band__panel h2 {
  font-size: 23px;
  line-height: 1.32;
  color: var(--bright);
  margin: 0 0 14px;
}

.page-faq .faq-band__panel > p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--dim);
  margin: 0 0 22px;
  max-width: 70ch;
}

.page-faq .faq-band__channels {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-band__channel {
  display: grid;
  gap: 4px;
  border-left: 3px solid var(--line);
  padding: 4px 0 4px 14px;
}

.page-faq .faq-band__channel:first-child {
  border-left-color: var(--orange);
}

.page-faq .faq-band__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--teal);
}

.page-faq .faq-band__val {
  font-size: 15px;
  color: var(--bright);
  word-break: break-word;
}

.page-faq .faq-band__note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--dim);
  opacity: 0.86;
}

.page-faq .faq-band__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .breadcrumbs {
    padding-top: 28px;
  }

  .page-faq .faq-hero {
    padding: 22px 0 10px;
  }

  .page-faq .faq-hero h1 {
    font-size: 38px;
  }

  .page-faq .faq-hero__lead {
    font-size: 16.5px;
  }

  .page-faq .qa__q {
    font-size: 16.5px;
    padding: 16px 52px 16px 18px;
  }

  .page-faq .qa__a {
    padding: 20px 22px;
  }

  .page-faq .faq-band__panel {
    padding: 34px 34px 36px;
  }

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

@media (min-width: 1000px) {
  .page-faq .faq-hero {
    padding: 30px 0 16px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 50px;
  }

  .page-faq .faq-hero h1 {
    font-size: 46px;
    line-height: 1.16;
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 292px;
    gap: 50px;
    align-items: start;
    padding-top: 46px;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-band__panel h2 {
    font-size: 29px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}