.page-faq {
  --faq-line: rgba(79, 224, 200, 0.24);
  --faq-mute: rgba(247, 251, 249, 0.68);
  --faq-mute-soft: rgba(247, 251, 249, 0.6);
  --faq-amber: #8a6a26;
  background: var(--ink-800);
  color: var(--white);
}

.page-faq h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3.6vw, 2.35rem);
  line-height: 1.26;
  letter-spacing: -0.01em;
}

.page-faq h3 {
  margin: 0;
  font-size: clamp(1.06rem, 2vw, 1.26rem);
  line-height: 1.42;
}

.page-faq p {
  line-height: 1.75;
}

/* 面包屑与开篇 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.25rem, 3.5vw, 2rem) 0 clamp(2.5rem, 6vw, 4rem);
  background:
    radial-gradient(90% 70% at 12% 0%, rgba(79, 224, 200, 0.14), transparent 62%),
    radial-gradient(70% 60% at 92% 6%, rgba(227, 180, 92, 0.13), transparent 60%),
    linear-gradient(165deg, var(--ink-900) 0%, var(--ink-800) 62%, var(--ink-700) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -58%;
  width: 78%;
  height: 78%;
  background: linear-gradient(118deg, rgba(79, 224, 200, 0.11), transparent 68%);
  transform: rotate(-8deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.5rem, 4.5vw, 3rem);
  margin-top: clamp(1.5rem, 4.5vw, 2.75rem);
  align-items: end;
}

.page-faq .faq-hero__lead .display {
  margin: 0.85rem 0 1.05rem;
  font-size: clamp(1.95rem, 6.2vw, 3.4rem);
  line-height: 1.12;
}

.page-faq .faq-hero__lead .lede {
  margin: 0;
  max-width: 40ch;
  color: var(--faq-mute);
  font-size: clamp(0.98rem, 1.6vw, 1.06rem);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__num {
  display: block;
  font-size: clamp(1.7rem, 4.6vw, 2.4rem);
  line-height: 1.05;
  color: var(--gold-soft);
}

.page-faq .faq-hero__label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.84rem;
  letter-spacing: 0.05em;
  color: var(--faq-mute-soft);
}

/* 六步流程 */
.page-faq .faq-flow {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background: var(--ink-800);
}

.page-faq .faq-flow__head {
  max-width: 66ch;
}

.page-faq .faq-flow__head h2 {
  margin: 0.7rem 0 0.9rem;
}

.page-faq .faq-flow__intro {
  margin: 0;
  color: var(--faq-mute);
}

.page-faq .faq-flow__figure {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 clamp(2rem, 5vw, 3rem);
}

.page-faq .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.page-faq .faq-flow__layout {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-faq .flow-rail ol {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0 0 0.6rem;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-faq .flow-rail li {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-faq .flow-rail a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem 0.55rem 0.7rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--pill);
  background: rgba(10, 31, 26, 0.6);
  color: var(--faq-mute);
  font-size: 0.86rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color 200ms ease, border-color 200ms ease, background 200ms ease;
}

.page-faq .flow-rail a:hover,
.page-faq .flow-rail a:focus-visible {
  color: var(--white);
  border-color: var(--cyan);
  background: rgba(79, 224, 200, 0.12);
}

.page-faq .flow-rail__num {
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-faq .flow-steps {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.25rem);
}

.page-faq .flow-step {
  padding-left: clamp(0.9rem, 3vw, 1.5rem);
  border-left: 2px solid rgba(79, 224, 200, 0.22);
  scroll-margin-top: 7rem;
  transition: border-color 220ms ease;
}

.page-faq .flow-step:target {
  border-left-color: var(--gold);
}

.page-faq .flow-step .flow-step__num {
  margin: 0 0 0.4rem;
  font-size: 0.76rem;
  letter-spacing: 0.24em;
  color: var(--gold);
}

.page-faq .flow-step h3 {
  margin: 0 0 0.6rem;
  color: var(--white);
}

.page-faq .flow-step p {
  margin: 0 0 0.7rem;
  max-width: 62ch;
  color: var(--faq-mute);
}

.page-faq .flow-step .flow-step__note {
  margin: 0;
  padding-left: 0.85rem;
  border-left: 2px solid var(--gold);
  font-size: 0.9rem;
  line-height: 1.68;
  color: var(--faq-mute-soft);
}

/* 设备与首次启动 */
.page-faq .faq-prep {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background: var(--ink-700);
}

.page-faq .faq-prep__head {
  max-width: 62ch;
}

.page-faq .faq-prep__head h2 {
  margin: 0.7rem 0 0.9rem;
}

.page-faq .faq-prep__head p {
  margin: 0;
  color: rgba(247, 251, 249, 0.72);
}

.page-faq .prep-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(1.75rem, 4.5vw, 2.75rem);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(247, 251, 249, 0.14);
}

.page-faq .prep-item {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  background: var(--ink-700);
}

.page-faq .prep-item h3 {
  margin: 0 0 0.55rem;
  font-size: 1.02rem;
  color: var(--gold-soft);
}

.page-faq .prep-item p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: rgba(247, 251, 249, 0.78);
}

/* 段位读法 */
.page-faq .faq-rank {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background: var(--ink-800);
}

.page-faq .rank-layout {
  display: grid;
  gap: clamp(1.75rem, 4.5vw, 3rem);
}

.page-faq .rank-copy h2 {
  margin: 0.7rem 0 1rem;
}

.page-faq .rank-copy > p {
  margin: 0 0 1.5rem;
  max-width: 60ch;
  color: var(--faq-mute);
}

.page-faq .rank-legend {
  display: grid;
  gap: 1rem;
  margin: 0 0 1.75rem;
}

.page-faq .rank-legend__row {
  padding-left: 1rem;
  border-left: 2px solid rgba(227, 180, 92, 0.45);
}

.page-faq .rank-legend dt {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
}

.page-faq .rank-legend dd {
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--faq-mute);
}

.page-faq .rank-svg {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
}

.page-faq .rank-svg__caption {
  margin: 0.8rem 0 0;
  max-width: 46ch;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--faq-mute-soft);
}

.page-faq .rank-figure {
  margin: 0;
}

/* 道具 */
.page-faq .faq-items {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background: linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 100%);
}

.page-faq .faq-items__head {
  max-width: 64ch;
}

.page-faq .faq-items__head h2 {
  margin: 0.7rem 0 0.9rem;
}

.page-faq .faq-items__head p {
  margin: 0;
  color: var(--faq-mute);
}

.page-faq .item-grid {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.5rem);
  margin-top: clamp(1.75rem, 4.5vw, 2.75rem);
}

.page-faq .item-card {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: clamp(1.2rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(10, 31, 26, 0.72);
}

.page-faq .item-card .pill {
  align-self: flex-start;
}

.page-faq .item-card h3 {
  font-size: 1.08rem;
  color: var(--white);
}

.page-faq .item-card p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.74;
  color: var(--faq-mute);
}

.page-faq .item-note {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding-left: 1rem;
  border-left: 2px solid var(--cyan);
  max-width: 68ch;
  font-size: 0.94rem;
  line-height: 1.75;
  color: rgba(247, 251, 249, 0.74);
}

/* 问答 */
.page-faq .faq-answers {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background: var(--paper);
  color: var(--ink-text);
}

.page-faq .eyebrow--dark {
  color: var(--faq-amber);
}

.page-faq .faq-answers__head {
  max-width: 62ch;
}

.page-faq .faq-answers__head h2 {
  margin: 0.7rem 0 0.9rem;
  color: var(--ink-text);
}

.page-faq .faq-answers__head p {
  margin: 0;
  color: #4a554f;
}

.page-faq .qa-group {
  margin-top: clamp(1.75rem, 4.5vw, 2.75rem);
}

.page-faq .qa-group__title {
  margin: 0 0 0.4rem;
  font-size: 0.76rem;
  letter-spacing: var(--tracking);
  color: var(--faq-amber);
}

.page-faq .qa {
  border-bottom: 1px solid rgba(16, 24, 21, 0.16);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 1.05rem 0.2rem 1.05rem 0;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--ink-text);
  transition: color 200ms ease;
}

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.3rem;
  line-height: 1.05;
  color: var(--faq-amber);
  transition: transform 220ms ease;
}

.page-faq .qa[open] summary::after {
  content: "−";
  transform: rotate(180deg);
}

.page-faq .qa summary:hover,
.page-faq .qa summary:focus-visible {
  color: var(--faq-amber);
}

.page-faq .qa__body {
  max-width: 72ch;
  padding: 0 2.2rem 1.2rem 0;
  font-size: 0.96rem;
  line-height: 1.78;
  color: #3d4842;
}

/* 收尾 */
.page-faq .faq-next {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background:
    radial-gradient(80% 80% at 88% 12%, rgba(227, 180, 92, 0.14), transparent 60%),
    linear-gradient(200deg, var(--ink-900) 0%, var(--ink-800) 100%);
}

.page-faq .faq-next__inner {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: center;
}

.page-faq .faq-next__copy h2 {
  margin: 0.7rem 0 0.9rem;
}

.page-faq .faq-next__copy p {
  margin: 0;
  max-width: 58ch;
  color: var(--faq-mute);
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* 桌面端栅格 */
@media (min-width: 700px) {
  .page-faq .prep-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .item-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-next__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(190px, 270px);
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: 1fr;
    padding-top: 0;
    padding-left: 1.5rem;
    border-top: 0;
    border-left: 2px solid var(--gold);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-flow__layout {
    grid-template-columns: minmax(180px, 232px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .flow-rail {
    position: sticky;
    top: 7rem;
  }

  .page-faq .flow-rail ol {
    flex-direction: column;
    gap: 0.2rem;
    padding: 0 0 0 0.9rem;
    border-left: 1px solid var(--faq-line);
    overflow: visible;
  }

  .page-faq .flow-rail a {
    width: 100%;
    padding: 0.5rem 0.85rem;
    border-color: transparent;
    background: transparent;
  }

  .page-faq .rank-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }
}

@media (min-width: 1020px) {
  .page-faq .prep-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-faq .item-card--wide {
    grid-column: span 2;
  }
}

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