.page-faq {
  --faq-ink: var(--c-cream);
  --faq-ink-soft: rgba(242, 237, 226, 0.78);
  --faq-ink-dim: rgba(242, 237, 226, 0.56);
  --faq-line: rgba(242, 237, 226, 0.12);
  background: var(--c-night);
  color: var(--faq-ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 34px) 0 clamp(34px, 6vw, 60px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -160px;
  left: 50%;
  width: min(880px, 130%);
  height: 420px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at 50% 20%, rgba(201, 162, 39, 0.26), rgba(201, 162, 39, 0) 66%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(112deg, rgba(242, 237, 226, 0.045) 0 1px, rgba(242, 237, 226, 0) 1px 15px);
  pointer-events: none;
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__kicker {
  margin: 18px 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  max-width: 20em;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  line-height: 1.6;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero__meta-k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-rock);
  text-transform: uppercase;
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 36px;
  padding-top: clamp(30px, 5vw, 54px);
  padding-bottom: clamp(56px, 8vw, 100px);
}

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

/* ---------- 左栏目录 ---------- */
.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-rock);
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

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

.page-faq .faq-index__list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.5;
  color: var(--faq-ink-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-gold);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--c-cream);
  border-color: var(--glass-line);
  background: var(--glass);
  outline: none;
}

.page-faq .faq-index__help {
  margin-top: 24px;
  padding: 20px;
  background: var(--c-panel);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
}

.page-faq .faq-index__help-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-gold-hi);
}

.page-faq .faq-index__help-text {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 96px;
  padding-bottom: clamp(30px, 4vw, 44px);
}

.page-faq .faq-group + .faq-group {
  padding-top: clamp(30px, 4vw, 44px);
  border-top: 1px solid rgba(242, 237, 226, 0.07);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.8vw, 28px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--c-cream);
  transition: color 240ms var(--ease);
}

.page-faq .faq-group__head .index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-gold);
}

.page-faq .faq-group:target .faq-group__head h2 {
  color: var(--c-gold-hi);
}

.page-faq .faq-group__lead {
  margin: 0 0 22px;
  max-width: 38em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-group__foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-ink-dim);
}

.page-faq .faq-group__foot a {
  color: var(--c-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, 0.4);
  padding-bottom: 1px;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-group__foot a:hover,
.page-faq .faq-group__foot a:focus-visible {
  color: var(--c-gold-hi);
  border-bottom-color: var(--c-gold-hi);
  outline: none;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 22px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--c-panel);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 2 / 1;
  filter: saturate(0.92) brightness(0.86);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--c-rock);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border-bottom: 1px solid rgba(242, 237, 226, 0.07);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--c-cream);
  transition: color 200ms var(--ease);
}

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

.page-faq .qa summary:hover,
.page-faq .qa summary:focus-visible {
  color: var(--c-gold-hi);
  outline: none;
}

.page-faq .qa summary:focus-visible {
  box-shadow: 0 0 0 2px var(--c-gold);
  border-radius: var(--radius);
}

.page-faq .qa__q {
  flex: 1 1 auto;
  font-weight: 600;
}

.page-faq .qa__sign {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 8px;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--c-gold);
  transform: translate(-50%, -50%);
}

.page-faq .qa__sign::before {
  width: 13px;
  height: 1.5px;
}

.page-faq .qa__sign::after {
  width: 1.5px;
  height: 13px;
  transition: transform 240ms var(--ease), opacity 240ms var(--ease);
}

.page-faq .qa[open] .qa__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa[open] summary {
  color: var(--c-cream);
}

.page-faq .qa__a {
  padding: 0 30px 20px 0;
  max-width: 38em;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .num {
  font-family: var(--font-mono);
  font-size: 0.94em;
  letter-spacing: 0.03em;
  color: var(--c-gold-hi);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-faq .faq-contact__item {
  padding: 18px 18px 20px;
  background: var(--c-panel);
  border-left: 2px solid var(--c-gold);
  border-radius: var(--radius);
}

.page-faq .faq-contact__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-faq .faq-contact__value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--c-cream);
  word-break: break-word;
}

.page-faq .faq-contact__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .faq-contact__note {
  margin: 18px 0 0;
  padding: 12px 16px;
  border: 1px dashed var(--glass-line);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-ink-dim);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact__item:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 248px minmax(0, 1fr);
    align-items: start;
    gap: clamp(40px, 5vw, 76px);
  }

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

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list li + li {
    margin-top: 2px;
  }

  .page-faq .faq-index__list a {
    padding: 11px 0 11px 16px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: none;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    border-left-color: var(--c-gold);
    background: linear-gradient(90deg, rgba(201, 162, 39, 0.12), rgba(201, 162, 39, 0));
  }

  .page-faq .faq-layout:has(#q-subscribe:target) .faq-index__list a[href="#q-subscribe"],
  .page-faq .faq-layout:has(#q-account:target) .faq-index__list a[href="#q-account"],
  .page-faq .faq-layout:has(#q-android:target) .faq-index__list a[href="#q-android"],
  .page-faq .faq-layout:has(#q-stats:target) .faq-index__list a[href="#q-stats"],
  .page-faq .faq-layout:has(#q-support:target) .faq-index__list a[href="#q-support"] {
    color: var(--c-gold-hi);
    border-left-color: var(--c-gold);
    background: linear-gradient(90deg, rgba(201, 162, 39, 0.14), rgba(201, 162, 39, 0));
  }

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

  .page-faq .faq-contact__item:first-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__sign::after,
  .page-faq .qa summary,
  .page-faq .faq-index__list a,
  .page-faq .faq-group__head h2 {
    transition: none;
  }
}