.page-faq {
  --sp-max: 1220px;
  --sp-gutter: clamp(1.25rem, 4vw, 3rem);
  --sp-rail: 200px;
  --sp-answer: rgba(242, 244, 255, 0.76);
  --sp-ink-soft: rgba(34, 26, 20, 0.74);
  --sp-ink-line: rgba(34, 26, 20, 0.18);
  background: var(--gx-void);
  color: var(--gx-star);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .sp-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2.25rem, 7vw, 4.5rem) 0 clamp(2.5rem, 7vw, 4.25rem);
  border-bottom: 1px solid var(--gx-line);
  background:
    radial-gradient(120% 95% at 92% -10%, rgba(232, 111, 168, 0.22), transparent 58%),
    radial-gradient(85% 75% at 2% 108%, rgba(79, 209, 224, 0.14), transparent 62%);
}

.page-faq .sp-hero__inner {
  position: relative;
  max-width: var(--sp-max);
  margin-inline: auto;
}

.page-faq .sp-hero__ring {
  position: absolute;
  top: -46%;
  right: -22%;
  width: min(760px, 92vw);
  aspect-ratio: 1 / 1;
  border: 1px solid var(--gx-line);
  border-radius: 50%;
  box-shadow: inset 0 0 80px -40px rgba(108, 74, 182, 0.9);
  pointer-events: none;
  animation: sp-ring-spin 96s linear infinite;
}

@keyframes sp-ring-spin {
  to { transform: rotate(360deg); }
}

.page-faq .sp-hero__note {
  position: absolute;
  top: 0.4rem;
  right: 0;
  writing-mode: vertical-rl;
  font-family: var(--gx-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  color: var(--gx-mute);
  display: none;
}

.page-faq .sp-hero__eyebrow {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .sp-hero__title {
  margin: 0.7rem 0 0;
  max-width: 15ch;
  font-size: clamp(2rem, 6.6vw, 4.1rem);
  line-height: 1.14;
  letter-spacing: 0.05em;
  text-shadow: 0 0 34px rgba(108, 74, 182, 0.5);
}

.page-faq .sp-hero__lede {
  margin-top: 1.1rem;
  max-width: 62ch;
  color: rgba(242, 244, 255, 0.82);
}

.page-faq .sp-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
}

.page-faq .sp-quick a {
  display: inline-block;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--gx-line-strong);
  font-family: var(--gx-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--gx-star);
  text-decoration: none;
  transition: border-color 0.25s ease, color 0.25s ease, background-color 0.25s ease;
}

.page-faq .sp-quick a:hover,
.page-faq .sp-quick a:focus-visible {
  border-color: var(--gx-cyan);
  color: var(--gx-cyan);
  background: rgba(79, 209, 224, 0.08);
}

/* ---------- 主体骨架 ---------- */
.page-faq .sp-layout {
  max-width: var(--sp-max);
  margin-inline: auto;
  padding: clamp(2rem, 5vw, 3rem) var(--sp-gutter) clamp(3rem, 7vw, 5rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}

.page-faq .sp-rail {
  order: 0;
}

.page-faq .sp-rail__inner {
  border-top: 1px solid var(--gx-line);
  padding-top: 1rem;
}

.page-faq .sp-rail__label {
  margin-bottom: 0.75rem;
}

.page-faq .sp-rail .gx-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

.page-faq .sp-rail .gx-toc__link {
  display: inline-block;
  font-size: 0.86rem;
  color: var(--gx-mute);
  text-decoration: none;
  padding-bottom: 0.2rem;
  border-bottom: 1px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.page-faq .sp-rail .gx-toc__link:hover,
.page-faq .sp-rail .gx-toc__link:focus-visible {
  color: var(--gx-star);
}

.page-faq .sp-rail .gx-toc__link.is-active {
  color: var(--gx-cyan);
  border-bottom-color: var(--gx-cyan);
}

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

.page-faq .sp-section {
  padding-block: clamp(2rem, 5.5vw, 3.5rem);
}

.page-faq .sp-section + .sp-section {
  border-top: 1px solid var(--gx-line);
}

.page-faq .sp-head {
  max-width: 62ch;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.page-faq .sp-head .gx-title {
  margin: 0.55rem 0 0.85rem;
}

.page-faq .sp-head .gx-lede {
  color: rgba(242, 244, 255, 0.75);
}

/* ---------- 场景入口 ---------- */
.page-faq .sp-scenes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--gx-line);
  border: 1px solid var(--gx-line);
}

.page-faq .sp-scene {
  position: relative;
  display: block;
  padding: 1.6rem 1.35rem 1.8rem;
  background: var(--gx-deep);
  border-top: 3px solid transparent;
  color: inherit;
  text-decoration: none;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.page-faq .sp-scene--violet { border-top-color: var(--gx-violet); }
.page-faq .sp-scene--cyan { border-top-color: var(--gx-cyan); }
.page-faq .sp-scene--gold { border-top-color: var(--gx-gold); }

.page-faq .sp-scene:hover,
.page-faq .sp-scene:focus-visible {
  background: #101736;
  transform: translateY(-3px);
}

.page-faq .sp-scene--violet:hover,
.page-faq .sp-scene--violet:focus-visible { box-shadow: 0 22px 44px -32px rgba(108, 74, 182, 1); }
.page-faq .sp-scene--cyan:hover,
.page-faq .sp-scene--cyan:focus-visible { box-shadow: 0 22px 44px -32px rgba(79, 209, 224, 1); }
.page-faq .sp-scene--gold:hover,
.page-faq .sp-scene--gold:focus-visible { box-shadow: 0 22px 44px -32px rgba(242, 183, 94, 1); }

.page-faq .sp-scene__idx {
  display: block;
  font-family: var(--gx-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--gx-mute);
}

.page-faq .sp-scene--violet .sp-scene__idx { color: var(--gx-violet); }
.page-faq .sp-scene--cyan .sp-scene__idx { color: var(--gx-cyan); }
.page-faq .sp-scene--gold .sp-scene__idx { color: var(--gx-gold); }

.page-faq .sp-scene__title {
  display: block;
  margin-top: 0.85rem;
  font-size: 1.1rem;
  line-height: 1.5;
  letter-spacing: 0.03em;
  color: var(--gx-star);
}

.page-faq .sp-scene__text {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--gx-mute);
}

.page-faq .sp-scene__more {
  display: block;
  margin-top: 1.1rem;
  font-family: var(--gx-font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: rgba(242, 244, 255, 0.62);
}

.page-faq .sp-scene:hover .sp-scene__more,
.page-faq .sp-scene:focus-visible .sp-scene__more {
  color: var(--gx-star);
}

/* ---------- 图片框 ---------- */
.page-faq .sp-media {
  margin: 0 0 clamp(1.5rem, 4vw, 2rem);
  border: 1px solid var(--gx-line);
  background: var(--gx-deep);
}

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

.page-faq .sp-media .gx-media__cap {
  display: block;
  padding: 0.7rem 0.9rem;
  border-top: 1px solid var(--gx-line);
  font-family: var(--gx-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--gx-mute);
}

/* ---------- 问答折叠 ---------- */
.page-faq .sp-faq-list {
  border-top: 1px solid var(--gx-line);
}

.page-faq details.sp-faq {
  border-bottom: 1px solid var(--gx-line);
}

.page-faq details.sp-faq summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.15rem 0;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gx-star);
}

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

.page-faq details.sp-faq summary:focus-visible {
  outline: 1px solid var(--gx-cyan);
  outline-offset: 4px;
}

.page-faq .sp-faq__mark {
  position: relative;
  flex: 0 0 auto;
  width: 0.95rem;
  height: 0.95rem;
  margin-top: 0.42rem;
}

.page-faq .sp-faq__mark::before,
.page-faq .sp-faq__mark::after {
  content: "";
  position: absolute;
  background: var(--gx-cyan);
}

.page-faq .sp-faq__mark::before {
  left: 0;
  right: 0;
  top: calc(50% - 0.5px);
  height: 1px;
}

.page-faq .sp-faq__mark::after {
  top: 0;
  bottom: 0;
  left: calc(50% - 0.5px);
  width: 1px;
  transition: transform 0.28s ease;
}

.page-faq details.sp-faq[open] .sp-faq__mark::after {
  transform: scaleY(0);
}

.page-faq details.sp-faq[open] summary {
  color: var(--gx-cyan);
}

.page-faq .sp-faq__a {
  padding: 0 2rem 1.4rem 0;
  max-width: 68ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--sp-answer);
}

/* ---------- 奶油纸面板 ---------- */
.page-faq .sp-paper {
  margin-block: clamp(0.5rem, 2vw, 1rem);
  padding: clamp(1.5rem, 4.5vw, 3rem);
  background: var(--gx-paper);
  color: var(--gx-ink);
  border: 1px solid rgba(34, 26, 20, 0.16);
  box-shadow: 0 30px 60px -46px rgba(5, 7, 15, 0.95);
}

.page-faq .sp-paper .gx-eyebrow {
  color: rgba(34, 26, 20, 0.58);
}

.page-faq .sp-paper .gx-title {
  color: var(--gx-ink);
  text-shadow: none;
}

.page-faq .sp-paper .gx-lede {
  color: var(--sp-ink-soft);
}

.page-faq .sp-paper .sp-media {
  border-color: var(--sp-ink-line);
  background: rgba(34, 26, 20, 0.05);
}

.page-faq .sp-paper .sp-media .gx-media__cap {
  border-top-color: var(--sp-ink-line);
  color: rgba(34, 26, 20, 0.6);
}

.page-faq .sp-paper .sp-faq-list {
  border-top-color: var(--sp-ink-line);
}

.page-faq .sp-paper details.sp-faq {
  border-bottom-color: var(--sp-ink-line);
}

.page-faq .sp-paper details.sp-faq summary {
  color: var(--gx-ink);
}

.page-faq .sp-paper details.sp-faq[open] summary {
  color: var(--gx-violet);
}

.page-faq .sp-paper details.sp-faq summary:focus-visible {
  outline-color: var(--gx-violet);
}

.page-faq .sp-paper .sp-faq__mark::before,
.page-faq .sp-paper .sp-faq__mark::after {
  background: var(--gx-violet);
}

.page-faq .sp-paper .sp-faq__a {
  color: var(--sp-ink-soft);
}

/* ---------- 文档路径 ---------- */
.page-faq .sp-path {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0 0 0 1.5rem;
  border-left: 1px solid rgba(34, 26, 20, 0.24);
  display: grid;
  gap: 1.15rem;
}

.page-faq .sp-path__item {
  position: relative;
  display: block;
}

.page-faq .sp-path__dot {
  position: absolute;
  left: -1.5rem;
  top: 0.42rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--gx-gold);
  transform: translateX(-50%);
  box-shadow: 0 0 0 3px rgba(242, 183, 94, 0.24);
}

.page-faq .sp-path__k {
  display: block;
  font-family: var(--gx-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: rgba(34, 26, 20, 0.5);
}

.page-faq .sp-path__v {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--gx-ink);
}

/* ---------- 文档区按钮 ---------- */
.page-faq .sp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
}

/* ---------- 联系支持 ---------- */
.page-faq .sp-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
  padding: clamp(1.5rem, 4.5vw, 2.75rem);
  border: 1px solid var(--gx-line-strong);
  background:
    linear-gradient(135deg, rgba(242, 183, 94, 0.1), rgba(108, 74, 182, 0.09) 48%, transparent 78%),
    var(--gx-deep);
}

.page-faq .sp-contact__copy .gx-title {
  margin: 0.55rem 0 0.85rem;
}

.page-faq .sp-contact__copy .gx-lede {
  margin: 0;
  color: rgba(242, 244, 255, 0.78);
}

.page-faq .sp-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--gx-line);
  border: 1px solid var(--gx-line);
}

.page-faq .sp-contact__item {
  display: grid;
  gap: 0.3rem;
  padding: 0.95rem 1.1rem;
  background: rgba(5, 7, 15, 0.72);
}

.page-faq .sp-contact__k {
  font-family: var(--gx-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--gx-gold);
}

.page-faq .sp-contact__v {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--gx-star);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .sp-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .sp-media {
    margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
  }
}

@media (min-width: 900px) {
  .page-faq .sp-hero__note {
    display: block;
  }

  .page-faq .sp-hero__inner {
    padding-right: 3rem;
  }
}

@media (min-width: 990px) {
  .page-faq .sp-layout {
    grid-template-columns: var(--sp-rail) minmax(0, 1fr);
    gap: 3.5rem;
  }

  .page-faq .sp-rail__inner {
    position: sticky;
    top: calc(var(--gx-header-h) + 2rem);
  }

  .page-faq .sp-rail .gx-toc__list {
    display: block;
  }

  .page-faq .sp-rail .gx-toc__list li + li {
    margin-top: 0.6rem;
  }

  .page-faq .sp-rail .gx-toc__link {
    display: inline-block;
  }

  .page-faq .sp-contact {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-faq .sp-paper {
    padding: clamp(2rem, 4vw, 3.5rem) clamp(2rem, 4vw, 3.25rem);
  }
}

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

  .page-faq .sp-scene,
  .page-faq .sp-quick a,
  .page-faq .sp-rail .gx-toc__link,
  .page-faq .sp-faq__mark::after {
    transition: none;
  }

  .page-faq .sp-scene:hover,
  .page-faq .sp-scene:focus-visible {
    transform: none;
  }
}