.page-faq {
  --season: var(--autumn);
  --season-accent: var(--autumn-accent);
  --faq-q-gap: 0.6rem;
  color: var(--body);
}

.page-faq [data-season="spring"] {
  --season: var(--spring);
  --season-accent: var(--spring-accent);
}

.page-faq [data-season="summer"] {
  --season: var(--summer);
  --season-accent: var(--summer-accent);
}

.page-faq [data-season="autumn"] {
  --season: var(--autumn);
  --season-accent: var(--autumn-accent);
}

.page-faq [data-season="winter"] {
  --season: var(--winter);
  --season-accent: var(--summer-accent);
}

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

/* ---------- 首屏 ---------- */

.page-faq__masthead {
  padding-block: clamp(1.5rem, 4vw, 3rem) clamp(1.25rem, 3vw, 2rem);
}

.page-faq__masthead-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq__masthead-lead {
  position: relative;
  padding-left: clamp(0.9rem, 2vw, 1.5rem);
  border-left: 5px solid var(--season);
}

.page-faq__masthead .sk-eyebrow {
  color: var(--season);
}

.page-faq__title {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 5.4vw, 3.2rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--winter);
  margin: 0.55rem 0 0;
  max-width: 15em;
}

.page-faq__masthead .sk-lede {
  margin: 1rem 0 0;
  max-width: 36em;
  font-size: clamp(0.98rem, 1.6vw, 1.08rem);
  line-height: 1.78;
  color: var(--body);
}

.page-faq__stats {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: var(--line);
  align-self: start;
}

.page-faq__stat {
  background: var(--paper);
  padding: 0.85rem 0.95rem;
}

.page-faq__stat dt {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq__stat dd {
  margin: 0.3rem 0 0;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.45;
}

/* ---------- 筛选条 ---------- */

.page-faq__filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1.25rem;
  padding: 0.9rem 0;
  border-top: var(--line);
  border-bottom: var(--line);
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.page-faq__filter .sk-filter__input {
  flex: 1 1 15rem;
  min-width: 0;
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.page-faq__filter .sk-filter__count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
}

/* ---------- 双栏骨架 ---------- */

.page-faq__layout {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.page-faq__rail {
  min-width: 0;
}

.page-faq__index {
  border-top: 3px solid var(--season);
  padding-top: 0.85rem;
}

.page-faq__index-title {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .page-faq__index .sk-index__link {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.55rem 0.5rem 0.55rem 0.35rem;
  border-left: 2px solid transparent;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-faq .page-faq__index .sk-index__link[aria-current="true"] {
  border-left-color: var(--season);
  background: color-mix(in srgb, var(--season) 7%, #fff);
}

.page-faq__index-label {
  font-size: 0.9rem;
  line-height: 1.5;
}

.page-faq .page-faq__index .sk-index__num {
  color: var(--season);
  font-size: 0.76rem;
  font-weight: 600;
}

.page-faq__rail-note {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: var(--line);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq__rail-note a {
  color: var(--season);
}

/* ---------- 分组 ---------- */

.page-faq__answers {
  min-width: 0;
}

.page-faq__group {
  padding-block: 0 0.5rem;
  margin-bottom: clamp(2rem, 4.5vw, 3.25rem);
}

.page-faq__group:last-of-type {
  margin-bottom: 1rem;
}

.page-faq__group-head {
  display: grid;
  gap: 0.35rem;
  padding-left: 1rem;
  border-left: 4px solid var(--season);
  margin-bottom: 1.35rem;
}

.page-faq__group-num {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--season);
}

.page-faq__group-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 3.2vw, 1.75rem);
  line-height: 1.3;
  color: var(--winter);
}

.page-faq__group-lede {
  margin: 0;
  max-width: 34em;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 问答折叠 ---------- */

.page-faq__q {
  border-bottom: var(--line);
  border-left: 3px solid transparent;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-faq__q:first-of-type {
  border-top: var(--line);
}

.page-faq__q[open] {
  border-left-color: var(--season);
  background: var(--frost);
  background: color-mix(in srgb, var(--season) 6%, #fff);
}

.page-faq .page-faq__q .sk-disclosure__summary {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.95rem 1rem 0.95rem 0.85rem;
  cursor: pointer;
  list-style: none;
}

.page-faq .page-faq__q .sk-disclosure__summary::-webkit-details-marker {
  display: none;
}

.page-faq__q-num {
  flex: 0 0 auto;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--season);
}

.page-faq__q-text {
  flex: 1 1 auto;
  font-family: var(--font-sans);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .page-faq__q .sk-disclosure__body {
  padding: 0 1.1rem 1.05rem 2.15rem;
}

.page-faq .page-faq__q .sk-disclosure__body > p {
  margin: 0 0 0.6rem;
  max-width: var(--measure);
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--body);
}

.page-faq .page-faq__q .sk-disclosure__body > p:last-child {
  margin-bottom: 0;
}

.page-faq .page-faq__q .sk-disclosure__body a {
  color: var(--season);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- 图片 ---------- */

.page-faq__figure {
  margin: 1.25rem 0 1.4rem;
}

.page-faq__figure .sk-figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq__figure--path {
  margin-top: 1.75rem;
}

.page-faq__figure .sk-figure__caption {
  margin-top: 0.55rem;
  font-size: 0.8rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 排查路径 ---------- */

.page-faq__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faq-path;
}

.page-faq__step {
  position: relative;
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0 1rem;
  padding: 0.9rem 0 1.15rem;
}

.page-faq__step::after {
  content: "";
  position: absolute;
  left: 1.2rem;
  top: 3.4rem;
  bottom: 0;
  width: 1px;
  background: var(--rule);
}

.page-faq__step:last-child::after {
  display: none;
}

.page-faq__step-num {
  grid-column: 1;
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--season);
  font-size: 0.88rem;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.page-faq__step-main {
  grid-column: 2;
  min-width: 0;
  padding-top: 0.15rem;
}

.page-faq__step-title {
  margin: 0 0 0.3rem;
  font-family: var(--font-serif);
  font-size: 1.03rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
}

.page-faq__step-text {
  margin: 0;
  max-width: 34em;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--body);
}

/* ---------- 收尾指路 ---------- */

.page-faq__next {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding: 1.1rem 1.25rem;
  border: var(--line);
  border-left: 4px solid var(--season-accent);
  background: var(--paper);
}

.page-faq__next p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--body);
}

.page-faq__next a {
  color: var(--season);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq__masthead-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4.5rem);
  }

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

@media (min-width: 960px) {
  .page-faq__layout {
    grid-template-columns: 15rem minmax(0, 1fr);
    align-items: start;
  }

  .page-faq__rail {
    position: sticky;
    top: 5.5rem;
  }

  .page-faq__group-head {
    padding-left: 1.15rem;
  }
}

@media (min-width: 1180px) {
  .page-faq__layout {
    grid-template-columns: 16.5rem minmax(0, 1fr);
    gap: 4rem;
  }
}

@media (max-width: 480px) {
  .page-faq__stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .page-faq__q .sk-disclosure__body {
    padding-left: 1rem;
  }

  .page-faq__step {
    grid-template-columns: 2rem minmax(0, 1fr);
    gap: 0 0.75rem;
  }

  .page-faq__step-num {
    width: 2rem;
    height: 2rem;
    font-size: 0.8rem;
  }

  .page-faq__step::after {
    left: 1rem;
    top: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .page-faq__index .sk-index__link,
  .page-faq__q {
    transition: none;
  }
}