.page-faq {
  --faq-panel: rgba(3, 21, 17, 0.55);
  --faq-edge: rgba(19, 84, 71, 0.85);
  --faq-text-soft: rgba(243, 255, 249, 0.76);
  --faq-text-dim: rgba(243, 255, 249, 0.58);
  background: var(--yk-night);
  color: var(--yk-white);
  font-family: var(--yk-f-body);
  line-height: 1.7;
  overflow-x: clip;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--yk-f-head);
  line-height: 1.2;
  margin: 0;
}

.page-faq p {
  margin: 0;
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--yk-header-h) + 1.75rem) 0 2.75rem;
  background:
    radial-gradient(120% 90% at 84% 4%, rgba(42, 169, 255, 0.22), transparent 62%),
    radial-gradient(95% 80% at 6% 0%, rgba(38, 224, 194, 0.18), transparent 60%),
    var(--yk-night);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  filter: saturate(0.7);
  pointer-events: none;
}

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

.page-faq .faq-hero__crumbs {
  margin-bottom: 1.5rem;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 1.75rem;
}

.page-faq .faq-hero__eyebrow {
  color: var(--yk-cyan);
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  text-transform: uppercase;
}

.page-faq .faq-hero__title {
  margin: 0.65rem 0 1rem;
  font-size: clamp(2rem, 7.4vw, 3.6rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.08;
}

.page-faq .faq-hero__title span {
  display: block;
  margin-top: 0.35rem;
  color: var(--yk-cyan);
  font-size: clamp(1.35rem, 4.6vw, 2.15rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__lead {
  max-width: 46ch;
  color: var(--faq-text-soft);
  font-size: 1rem;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero__aside {
  position: relative;
  padding: 1.35rem 1.35rem 1.5rem;
  border: 1px solid var(--faq-edge);
  border-radius: var(--yk-radius);
  background:
    linear-gradient(165deg, rgba(38, 224, 194, 0.1), rgba(3, 21, 17, 0.72) 62%);
  box-shadow: 0 22px 44px rgba(0, 0, 0, 0.28);
}

.page-faq .faq-hero__aside::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.35rem;
  width: 3.25rem;
  height: 3px;
  border-radius: 999px;
  background: var(--yk-lime);
}

.page-faq .faq-aside__title {
  font-family: var(--yk-f-head);
  font-weight: 800;
  font-size: 1.02rem;
  margin-bottom: 0.85rem;
}

.page-faq .faq-aside__list {
  list-style: none;
  margin: 0 0 0.9rem;
  padding: 0;
  display: grid;
  gap: 0.65rem;
  font-size: 0.92rem;
  color: var(--faq-text-soft);
}

.page-faq .faq-aside__list li {
  display: grid;
  grid-template-columns: 0.6rem 1fr;
  gap: 0.6rem;
  align-items: start;
}

.page-faq .faq-dot {
  width: 0.6rem;
  height: 0.6rem;
  margin-top: 0.5rem;
  border-radius: 50%;
  display: block;
}

.page-faq .faq-dot--warm { background: var(--yk-warm); }
.page-faq .faq-dot--cyan { background: var(--yk-cyan); }
.page-faq .faq-dot--lime { background: var(--yk-lime); }

.page-faq .faq-aside__hint {
  padding-top: 0.85rem;
  border-top: 1px dashed var(--faq-edge);
  font-size: 0.85rem;
  color: var(--faq-text-dim);
}

/* ---------- 分段切换 ---------- */
.page-faq .faq-switch {
  padding: 1rem 0 3rem;
}

.page-faq .faq-switch__title {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--faq-text-dim);
  margin-bottom: 1rem;
}

.page-faq .faq-tabs__list {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.4rem;
  scrollbar-width: thin;
}

.page-faq .faq-tabs__tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.7rem 1.15rem;
  border: 1px solid var(--faq-edge);
  border-radius: 999px;
  background: rgba(3, 21, 17, 0.5);
  color: var(--yk-white);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.25s var(--yk-ease), color 0.25s var(--yk-ease), border-color 0.25s var(--yk-ease);
}

.page-faq .faq-tabs__tab:hover {
  border-color: rgba(38, 224, 194, 0.6);
}

.page-faq .faq-tabs__tab[aria-selected="true"] {
  background: var(--yk-cyan);
  border-color: var(--yk-cyan);
  color: var(--yk-hole);
}

.page-faq .faq-tabs__idx {
  font-family: var(--yk-f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  opacity: 0.75;
}

.page-faq .faq-tabs__panel {
  margin-top: 1.1rem;
  padding: 1.3rem 1.25rem 1.4rem;
  border: 1px solid var(--faq-edge);
  border-left: 3px solid var(--yk-cyan);
  border-radius: var(--yk-radius-sm);
  background: var(--faq-panel);
}

.page-faq .faq-tabs__panel[hidden] {
  display: none;
}

.page-faq .faq-tabs__h {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 0.55rem;
}

.page-faq .faq-tabs__panel p {
  color: var(--faq-text-soft);
  font-size: 0.95rem;
}

.page-faq .faq-link {
  display: inline-block;
  margin-top: 0.8rem;
  color: var(--yk-cyan);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(38, 224, 194, 0.45);
}

.page-faq .faq-link:hover {
  color: var(--yk-lime);
  border-bottom-color: var(--yk-lime);
}

/* ---------- 章节标题 ---------- */
.page-faq .faq-head {
  max-width: 62ch;
  margin-bottom: 1.6rem;
}

.page-faq .faq-head__idx {
  color: var(--yk-cyan);
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  text-transform: uppercase;
}

.page-faq .faq-head__title {
  margin: 0.5rem 0 0.65rem;
  font-size: clamp(1.5rem, 4.8vw, 2.2rem);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-faq .faq-head__lead {
  color: var(--faq-text-soft);
}

/* ---------- 三步排查 ---------- */
.page-faq .faq-steps {
  padding: 3rem 0;
  border-top: 1px solid var(--faq-edge);
}

.page-faq .faq-steps__grid {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--faq-edge);
  border-radius: var(--yk-radius-sm);
  background: linear-gradient(155deg, rgba(38, 224, 194, 0.08), rgba(3, 21, 17, 0.6) 70%);
  transition: transform 0.25s var(--yk-ease), border-color 0.25s var(--yk-ease);
}

.page-faq .faq-step:hover {
  transform: translateY(-3px);
  border-color: rgba(38, 224, 194, 0.55);
}

.page-faq .faq-step__num {
  font-family: var(--yk-f-score);
  font-weight: 800;
  font-size: 2.1rem;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--yk-lime);
}

.page-faq .faq-step__title {
  font-size: 1.02rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}

.page-faq .faq-step__text {
  font-size: 0.92rem;
  color: var(--faq-text-soft);
}

.page-faq .faq-steps__figure {
  margin: 0;
  border: 1px solid var(--faq-edge);
  border-radius: var(--yk-radius);
  overflow: hidden;
  background: var(--yk-hole);
}

.page-faq .faq-steps__figure img {
  display: block;
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

.page-faq .faq-steps__figure figcaption {
  padding: 0.85rem 1.1rem 1rem;
  font-size: 0.85rem;
  color: var(--faq-text-dim);
  border-top: 1px solid var(--faq-edge);
}

/* ---------- 找回路径 ---------- */
.page-faq .faq-path {
  padding: 3rem 0;
  background:
    radial-gradient(80% 70% at 92% 10%, rgba(42, 169, 255, 0.14), transparent 60%),
    var(--yk-hole);
  border-top: 1px solid var(--faq-edge);
  border-bottom: 1px solid var(--faq-edge);
}

.page-faq .faq-path__grid {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.page-faq .faq-path__diagram {
  max-width: 13rem;
  margin: 0 auto;
}

.page-faq .faq-path__diagram svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-path__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-faq .faq-path__item {
  padding: 1rem 1.15rem;
  border-left: 2px solid rgba(38, 224, 194, 0.5);
  background: linear-gradient(90deg, rgba(38, 224, 194, 0.08), transparent 78%);
  border-radius: 0 var(--yk-radius-sm) var(--yk-radius-sm) 0;
}

.page-faq .faq-path__item h3 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}

.page-faq .faq-path__item p {
  font-size: 0.9rem;
  color: var(--faq-text-soft);
}

.page-faq .faq-path__item--quiet {
  border-left-color: var(--faq-edge);
  background: none;
}

.page-faq .faq-path__item--quiet p {
  color: var(--faq-text-dim);
  font-size: 0.85rem;
}

/* ---------- 兼容问答 ---------- */
.page-faq .faq-compat {
  padding: 3rem 0;
}

.page-faq .faq-acc {
  max-width: 60rem;
}

.page-faq .faq-acc__item {
  border: 1px solid var(--faq-edge);
  border-radius: var(--yk-radius-sm);
  background: rgba(3, 21, 17, 0.5);
  margin-bottom: 0.7rem;
  overflow: hidden;
}

.page-faq .faq-acc__item[open] {
  border-color: rgba(38, 224, 194, 0.45);
  background: rgba(38, 224, 194, 0.06);
}

.page-faq .faq-acc__q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  font-family: var(--yk-f-head);
  font-weight: 700;
  font-size: 0.98rem;
  list-style: none;
}

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

.page-faq .faq-acc__q::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--yk-f-mono);
  font-size: 1.15rem;
  color: var(--yk-cyan);
  line-height: 1;
}

.page-faq .faq-acc__item[open] .faq-acc__q::after {
  content: "–";
}

.page-faq .faq-acc__a {
  padding: 0 1.15rem 1.1rem;
  font-size: 0.92rem;
  color: var(--faq-text-soft);
}

.page-faq .faq-acc__a .faq-link {
  margin-top: 0;
}

.page-faq .faq-note-line {
  margin-top: 1.4rem;
  padding: 1rem 1.15rem;
  border-left: 3px solid var(--yk-warm);
  border-radius: 0 var(--yk-radius-sm) var(--yk-radius-sm) 0;
  background: rgba(255, 138, 61, 0.1);
  font-size: 0.88rem;
  color: var(--faq-text-soft);
  max-width: 60rem;
}

/* ---------- 收藏与对照 ---------- */
.page-faq .faq-favorites {
  padding: 3rem 0;
  border-top: 1px solid var(--faq-edge);
}

.page-faq .faq-fav__grid {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-fav__note {
  padding: 1.35rem 1.3rem 1.45rem;
  border: 1px solid var(--faq-edge);
  border-radius: var(--yk-radius);
  background: linear-gradient(150deg, rgba(201, 255, 63, 0.09), rgba(3, 21, 17, 0.62) 66%);
}

.page-faq .faq-fav__note h3 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
}

.page-faq .faq-fav__note p {
  font-size: 0.92rem;
  color: var(--faq-text-soft);
  margin-bottom: 0.65rem;
}

.page-faq .faq-rec__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-faq .faq-rec {
  padding: 1.05rem 1.15rem;
  border: 1px solid var(--faq-edge);
  border-radius: var(--yk-radius-sm);
  background: rgba(3, 21, 17, 0.55);
  transition: transform 0.25s var(--yk-ease), border-color 0.25s var(--yk-ease);
}

.page-faq .faq-rec:hover {
  transform: translateY(-2px);
  border-color: rgba(38, 224, 194, 0.5);
}

.page-faq .faq-rec__tag {
  display: inline-block;
  margin-bottom: 0.7rem;
  padding: 0.16rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(38, 224, 194, 0.4);
  font-family: var(--yk-f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--yk-cyan);
}

.page-faq .faq-rec__rows {
  margin: 0;
  display: grid;
  gap: 0.4rem;
}

.page-faq .faq-rec__row {
  display: grid;
  grid-template-columns: 3.6rem 1fr;
  gap: 0.6rem;
  align-items: baseline;
}

.page-faq .faq-rec__row dt {
  font-family: var(--yk-f-mono);
  font-size: 0.72rem;
  color: var(--faq-text-dim);
}

.page-faq .faq-rec__row dd {
  margin: 0;
  font-size: 0.9rem;
  color: var(--faq-text-soft);
}

/* ---------- 首次访问 ---------- */
.page-faq .faq-start {
  padding: 3rem 0;
  background: linear-gradient(180deg, rgba(42, 169, 255, 0.07), transparent 70%);
  border-top: 1px solid var(--faq-edge);
}

.page-faq .faq-start__bento {
  display: grid;
  gap: 0.85rem;
}

.page-faq .faq-tile {
  padding: 1.2rem 1.2rem 1.3rem;
  border: 1px solid var(--faq-edge);
  border-radius: var(--yk-radius);
  background: rgba(3, 21, 17, 0.55);
}

.page-faq .faq-tile__idx {
  font-family: var(--yk-f-score);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
  color: var(--yk-lime);
  margin-bottom: 0.45rem;
}

.page-faq .faq-tile__title {
  font-size: 1.02rem;
  font-weight: 800;
  margin-bottom: 0.35rem;
}

.page-faq .faq-tile__text {
  font-size: 0.9rem;
  color: var(--faq-text-soft);
}

.page-faq .faq-tile--wide {
  background: linear-gradient(140deg, rgba(38, 224, 194, 0.14), rgba(3, 21, 17, 0.7) 68%);
}

.page-faq .faq-tile--stat {
  border-color: rgba(201, 255, 63, 0.45);
  background: rgba(201, 255, 63, 0.12);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-faq .faq-tile__stat {
  font-family: var(--yk-f-score);
  font-weight: 800;
  font-size: clamp(2.6rem, 9vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--yk-lime);
}

.page-faq .faq-tile__statLabel {
  margin-top: 0.4rem;
  font-size: 0.86rem;
  color: var(--faq-text-soft);
}

/* ---------- 反馈收束 ---------- */
.page-faq .faq-help {
  padding: 2.75rem 0 3.5rem;
  background: var(--yk-hole);
  border-top: 1px solid var(--faq-edge);
}

.page-faq .faq-help__inner {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-help__idx {
  color: var(--yk-warm);
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  text-transform: uppercase;
}

.page-faq .faq-help__title {
  margin: 0.5rem 0 0.65rem;
  font-size: clamp(1.45rem, 4.6vw, 2.05rem);
  font-weight: 900;
}

.page-faq .faq-help__text {
  color: var(--faq-text-soft);
  max-width: 46ch;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.25rem;
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.page-faq .faq-help__list li {
  display: grid;
  gap: 0.15rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--faq-edge);
  border-radius: var(--yk-radius-sm);
  background: rgba(6, 42, 36, 0.7);
}

.page-faq .faq-help__k {
  font-family: var(--yk-f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--yk-cyan);
}

.page-faq .faq-help__v {
  font-size: 0.9rem;
  color: var(--faq-text-soft);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-steps {
    padding: 4rem 0;
  }

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

  .page-faq .faq-tile--wide {
    grid-column: 1 / -1;
  }

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

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

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: calc(var(--yk-header-h) + 2.5rem) 0 3.5rem;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.9fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 2rem;
    align-items: start;
  }

  .page-faq .faq-path__grid {
    grid-template-columns: minmax(0, 0.55fr) minmax(0, 1.45fr);
    gap: 2.5rem;
  }

  .page-faq .faq-fav__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 2rem;
    align-items: start;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-faq .faq-help__list {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-rec__list {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-start__bento {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-tile--wide {
    grid-column: span 3;
  }

  .page-faq .faq-tile--stat {
    grid-column: span 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-rec,
  .page-faq .faq-tabs__tab {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-rec:hover {
    transform: none;
  }
}