.page-faq {
  --faq-rail-w: 268px;
  --faq-gap: clamp(28px, 4vw, 56px);
  --faq-card-ink: #101418;
  --faq-card-soft: rgba(16, 20, 24, .64);
}

/* ---------------- 首屏框景 ---------------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--c-deep);
  color: var(--c-night);
  padding-block: calc(var(--head-h) + clamp(24px, 5vw, 56px)) clamp(36px, 6vw, 72px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(140% 120% at 88% -12%, rgba(255, 92, 26, .24), transparent 58%),
    radial-gradient(90% 90% at 6% 112%, rgba(41, 224, 214, .16), transparent 62%),
    linear-gradient(178deg, #0B1B33 0%, #0E2140 54%, #12294A 100%);
  z-index: 0;
}

.page-faq .faq-hero__glow {
  position: absolute;
  inset: -28% -12% auto -12%;
  height: 130%;
  background: radial-gradient(58% 58% at 50% 50%, rgba(41, 224, 214, .18), transparent 72%);
  filter: blur(46px);
  animation: faq-drift 28s var(--ease) infinite alternate;
  pointer-events: none;
  z-index: 0;
}

@keyframes faq-drift {
  from { transform: translate3d(-5%, -2%, 0) scale(1); }
  to   { transform: translate3d(7%, 4%, 0) scale(1.09); }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__glow { animation: none; }
}

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

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  align-items: center;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
  }
}

.page-faq .faq-hero__copy .placard {
  margin: 0 0 14px;
}

.page-faq .faq-hero__copy .t-display {
  margin: 0 0 16px;
  color: #FFFFFF;
  text-wrap: balance;
}

.page-faq .faq-hero__copy .t-lead {
  margin: 0 0 clamp(20px, 3vw, 30px);
  max-width: 62ch;
  color: var(--c-night);
}

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

.page-faq .faq-hero__marks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px 18px;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding-top: clamp(18px, 3vw, 26px);
  border-top: 1px solid var(--ln-on-deep);
}

.page-faq .faq-hero__mark {
  margin: 0;
}

.page-faq .faq-hero__mark dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(199, 210, 224, .62);
  margin-bottom: 6px;
}

.page-faq .faq-hero__mark dd {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--c-cyan);
}

.page-faq .faq-hero__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--ln-on-deep);
  background: var(--c-panel);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 2;
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__media img {
    aspect-ratio: 4 / 3;
  }
}

/* ---------------- 主体：索引 + 问答流 ---------------- */

.page-faq .faq-body {
  padding-block: clamp(40px, 6vw, 76px) clamp(56px, 8vw, 104px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 68px);
    align-items: start;
  }
}

/* 目录树 */

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  color: var(--text-soft);
}

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

.page-faq .faq-rail__item {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 14px;
  white-space: nowrap;
  color: var(--text-soft);
  text-decoration: none;
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-rail__n {
  font-size: 11px;
  color: var(--c-orange);
}

.page-faq .faq-rail__count {
  font-size: 11px;
  opacity: .7;
}

.page-faq .faq-rail__link::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: 3px;
  background: var(--c-orange);
  opacity: 0;
  transform: scaleY(.25);
  transform-origin: top center;
  transition: opacity .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--c-cyan-soft);
  border-color: rgba(41, 224, 214, .6);
  color: var(--faq-card-ink);
}

.page-faq .faq-rail__link:hover::before,
.page-faq .faq-rail__link:focus-visible::before {
  opacity: 1;
  transform: scaleY(1);
}

.page-faq:has(#faq-update:target) .faq-rail__link[href="#faq-update"]::before,
.page-faq:has(#faq-desktop:target) .faq-rail__link[href="#faq-desktop"]::before,
.page-faq:has(#faq-fields:target) .faq-rail__link[href="#faq-fields"]::before,
.page-faq:has(#faq-rules:target) .faq-rail__link[href="#faq-rules"]::before,
.page-faq:has(#faq-archive:target) .faq-rail__link[href="#faq-archive"]::before,
.page-faq:has(#faq-support:target) .faq-rail__link[href="#faq-support"]::before {
  opacity: 1;
  transform: scaleY(1);
}

.page-faq:has(#faq-update:target) .faq-rail__link[href="#faq-update"],
.page-faq:has(#faq-desktop:target) .faq-rail__link[href="#faq-desktop"],
.page-faq:has(#faq-fields:target) .faq-rail__link[href="#faq-fields"],
.page-faq:has(#faq-rules:target) .faq-rail__link[href="#faq-rules"],
.page-faq:has(#faq-archive:target) .faq-rail__link[href="#faq-archive"],
.page-faq:has(#faq-support:target) .faq-rail__link[href="#faq-support"] {
  background: rgba(255, 92, 26, .12);
  color: var(--text-strong);
}

.page-faq .faq-rail__hint {
  display: none;
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-soft);
}

@media (min-width: 1000px) {
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--head-h) + 22px);
  }

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

  .page-faq .faq-rail__link {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 12px;
    padding: 11px 14px 11px 18px;
    border: 0;
    border-radius: var(--radius-sm);
    font-size: 15px;
    white-space: normal;
  }

  .page-faq .faq-rail__n {
    font-size: 12px;
  }

  .page-faq .faq-rail__count {
    font-size: 12px;
    text-align: right;
  }

  .page-faq .faq-rail__hint {
    display: block;
  }
}

/* 问答区块 */

.page-faq .faq-sec {
  scroll-margin-top: calc(var(--head-h) + 26px);
}

.page-faq .faq-sec + .faq-sec {
  margin-top: clamp(40px, 6vw, 68px);
  padding-top: clamp(40px, 6vw, 68px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-sec__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-faq .faq-sec__badge {
  flex: none;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--c-orange);
}

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

.page-faq .faq-sec__count {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  text-align: right;
  color: var(--text-soft);
  white-space: nowrap;
}

/* 问答条目 */

.page-faq .faq-item {
  --faq-radius: var(--radius-md);
  background: #FBF8F2;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

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

.page-faq .faq-item[open] {
  border-color: rgba(255, 92, 26, .5);
  box-shadow: 0 16px 34px -28px rgba(4, 10, 20, .8);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--faq-card-ink);
  transition: background-color .18s var(--ease);
}

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

.page-faq .faq-item__q:hover {
  background: rgba(41, 224, 214, .14);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -3px;
}

.page-faq .faq-item__tag {
  flex: none;
  font-size: 11px;
  letter-spacing: .08em;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  background: var(--c-cyan-soft);
  color: var(--faq-card-ink);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
}

.page-faq .faq-item__arrow {
  flex: none;
  width: 9px;
  height: 9px;
  margin-right: 4px;
  border-right: 2px solid var(--c-orange);
  border-bottom: 2px solid var(--c-orange);
  transform: rotate(45deg);
  transition: transform .26s var(--ease);
}

.page-faq .faq-item[open] .faq-item__arrow {
  transform: rotate(-135deg);
}

.page-faq .faq-item__a {
  padding: 14px 18px 18px;
  border-top: 1px dashed rgba(16, 20, 24, .2);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--faq-card-ink);
}

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

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

.page-faq .faq-item__rel {
  margin-top: 12px !important;
  font-size: 13.5px;
  color: var(--faq-card-soft);
}

.page-faq .faq-item__rel a {
  color: var(--faq-card-ink);
  text-decoration: none;
  border-bottom: 2px solid var(--c-orange);
  padding-bottom: 1px;
  transition: color .18s var(--ease);
}

.page-faq .faq-item__rel a:hover,
.page-faq .faq-item__rel a:focus-visible {
  color: #B33A08;
}

.page-faq .faq-field {
  font-family: var(--font-mono);
  font-size: .9em;
  padding: 1px 6px;
  border-radius: 6px;
  background: var(--c-cyan-soft);
  color: var(--faq-card-ink);
  white-space: nowrap;
}

/* 说明配图 */

.page-faq .faq-figure {
  margin: 18px 0 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--c-deep);
}

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

.page-faq .faq-figure figcaption {
  padding: 11px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-night);
  background: rgba(11, 27, 51, .96);
  border-top: 1px solid var(--ln-on-deep);
}

/* 窄屏收敛 */

@media (max-width: 560px) {
  .page-faq .faq-item__tag {
    display: none;
  }

  .page-faq .faq-item__q {
    padding: 14px 15px;
    gap: 10px;
  }

  .page-faq .faq-item__text {
    font-size: 15px;
  }

  .page-faq .faq-item__a {
    padding: 13px 15px 16px;
    font-size: 14.5px;
  }

  .page-faq .faq-hero__actions .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}