.page-faq {
  --faq-rail: 238px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(36px, 6.5vw, 82px) 0 clamp(24px, 4vw, 40px);
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(22px, 3.4vw, 38px);
}

.page-faq .breadcrumbs__sep {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--line-strong);
}

.page-faq .breadcrumbs__item {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--rock);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 28px;
}

.page-faq .faq-hero__title {
  margin: 10px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 4.1rem);
  line-height: 1.06;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin: 0 0 26px;
  max-width: 46em;
  font-family: var(--font-body);
  font-size: 1.03rem;
  line-height: 1.9;
  color: var(--ink);
}

.page-faq .faq-hero__lede a {
  color: var(--green);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

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

.page-faq .faq-hero__panel {
  padding: 22px 20px 20px;
  background: var(--warm);
  border: 1px solid var(--line);
  border-top: 3px solid var(--green);
  box-shadow: 5px 5px 0 var(--kraft);
}

.page-faq .faq-hero__panel-cap {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--rock);
}

.page-faq .faq-figures {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .faq-figures__item {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 6px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-figures__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-figures__num {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
  border-bottom: 2px solid var(--gold);
}

.page-faq .faq-figures__unit {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--green);
}

.page-faq .faq-figures__label {
  flex: 1 1 100%;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--rock);
}

.page-faq .faq-hero__figure {
  margin: clamp(30px, 5vw, 54px) 0 0;
}

.page-faq .faq-hero__figure img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 主体区 ---------- */
.page-faq .faq-body {
  padding: clamp(34px, 5vw, 62px) 0 clamp(52px, 8vw, 96px);
}

.page-faq .faq-body__head {
  margin-bottom: 26px;
}

.page-faq .faq-body__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.1vw, 2.1rem);
  line-height: 1.24;
  letter-spacing: 0.015em;
  color: var(--ink);
}

.page-faq .faq-layout {
  display: grid;
  gap: 36px;
  align-items: start;
}

.page-faq .faq-toolbar {
  margin-bottom: 26px;
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-filter .filter__btn {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
}

/* ---------- 折叠排查块 ---------- */
.page-faq .faq-blocks {
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .faq-block {
  border: 0;
  border-top: 1px solid var(--line-strong);
  background: transparent;
  box-shadow: none;
  padding: 0;
  transition: border-color 0.24s ease, background-color 0.24s ease;
}

.page-faq .faq-block[open] {
  border-top-color: var(--green);
  background: linear-gradient(180deg, rgba(31, 111, 92, 0.05), rgba(31, 111, 92, 0) 62%);
}

.page-faq .faq-block > summary::before {
  display: none;
}

.page-faq .faq-block > summary {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 6px 14px;
  padding: 20px 4px 20px 0;
  cursor: pointer;
  list-style: none;
  border-radius: 0;
}

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

.page-faq .faq-block > summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-faq .faq-block__no {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--gold);
  border-left: 2px solid var(--amber);
  padding-left: 9px;
}

.page-faq .faq-block__label {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  line-height: 1.4;
  letter-spacing: 0.015em;
  color: var(--ink);
}

.page-faq .faq-block__tag {
  grid-column: 2 / -1;
}

.page-faq .faq-block[open] .faq-block__label {
  color: var(--green);
}

.page-faq .faq-block__body {
  padding: 2px 0 28px 56px;
  border-left: 0;
}

.page-faq .faq-block__lead {
  margin: 0 0 20px;
  font-family: var(--font-body);
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 有序步骤 ---------- */
.page-faq .steps {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
}

.page-faq .steps__item {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 20px;
}

.page-faq .steps__item::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 38px;
  bottom: 2px;
  width: 1px;
  background: var(--line-strong);
}

.page-faq .steps__item:last-child {
  padding-bottom: 0;
}

.page-faq .steps__item:last-child::before {
  display: none;
}

.page-faq .steps__no {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--green);
  background: var(--warm);
  border: 1px solid var(--line-strong);
}

.page-faq .steps__title {
  margin: 5px 0 5px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.96rem;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-faq .steps__body p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 原因清单 ---------- */
.page-faq .causes {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .causes__item {
  padding-left: 14px;
  border-left: 2px solid var(--kraft);
}

.page-faq .causes__key {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--green);
}

.page-faq .causes__item p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 判断结论 ---------- */
.page-faq .verdict {
  margin: 0;
  padding: 13px 16px;
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.82;
  color: var(--ink);
  background: linear-gradient(135deg, rgba(52, 192, 138, 0.14), rgba(31, 111, 92, 0.05));
  border-left: 3px solid var(--moss);
}

/* ---------- 内嵌图 ---------- */
.page-faq .faq-inline-figure {
  margin: 0 0 22px;
}

.page-faq .faq-inline-figure img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 材料清单 ---------- */
.page-faq .checklist {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-faq .checklist__item {
  position: relative;
  padding-left: 24px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .checklist__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 9px;
  background: var(--amber);
}

/* ---------- 联系条 ---------- */
.page-faq .faq-contact {
  margin: 0 0 22px;
  padding: 18px 18px 16px;
  background: var(--warm);
  border: 1px solid var(--line);
  border-left: 4px solid var(--clay);
}

.page-faq .faq-contact__line {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.page-faq .faq-contact__line a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
}

.page-faq .faq-contact__line a:hover,
.page-faq .faq-contact__line a:focus-visible {
  color: var(--green);
}

.page-faq .faq-contact__key {
  min-width: 5.4em;
  color: var(--rock);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

.page-faq .faq-contact__note {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--rock);
}

/* ---------- 行动按钮组 ---------- */
.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 右侧快速索引 ---------- */
.page-faq .faq-index {
  padding-top: 16px;
  border-top: 2px solid var(--ink);
}

.page-faq .faq-index__cap {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--rock);
}

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

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

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 10px 6px 10px 0;
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.18s ease, padding-left 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--green);
  padding-left: 6px;
  background: rgba(31, 111, 92, 0.05);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gold);
}

/* ---------- 折叠块状态标记 ---------- */
.page-faq .faq-block--assist[open] {
  background: linear-gradient(180deg, rgba(180, 101, 74, 0.08), rgba(180, 101, 74, 0) 62%);
  border-top-color: var(--clay);
}

.page-faq .faq-block--assist[open] .faq-block__label {
  color: var(--clay);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-block > summary {
    grid-template-columns: 42px minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-faq .faq-block__tag {
    grid-column: auto;
    justify-self: end;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 0.58fr);
    align-items: end;
    gap: 48px;
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) var(--faq-rail);
    gap: 56px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-block__body {
    padding-right: 32px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-block > summary {
    padding-right: 8px;
  }

  .page-faq .faq-block__lead {
    font-size: 1rem;
  }
}

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