.page-faq {
  background: var(--ivory);
  color: var(--ink);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(28px, 4.5vw, 68px);
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 56px);
  align-items: start;
}

.page-faq .faq-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(18px, 2.4vw, 28px);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--graphite);
}

.page-faq .faq-path a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-path a:hover {
  color: var(--gold-ink);
  border-color: var(--gold);
}

.page-faq .faq-path__sep {
  color: var(--line-strong);
}

.page-faq .faq-hero__title {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.15rem, 6vw, 4.4rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--navy);
}

.page-faq .faq-hero__lede {
  max-width: 34em;
  margin: 0 0 clamp(22px, 3vw, 34px);
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 搜索 ---------- */
.page-faq .faq-search {
  max-width: 520px;
  padding-top: clamp(16px, 2vw, 22px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-search__label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--graphite);
}

.page-faq .faq-search__field {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  padding: 0 14px;
  background: var(--white);
  border: 1px solid var(--line-strong);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.page-faq .faq-search__field:focus-within {
  border-color: var(--gold);
  box-shadow: inset 0 -2px 0 var(--gold);
}

.page-faq .faq-search__glyph {
  flex: 0 0 auto;
  color: var(--gold);
  font-size: 1.05rem;
  line-height: 1;
}

.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  height: 100%;
  border: 0;
  outline: none;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--ink);
  -webkit-appearance: none;
  appearance: none;
}

.page-faq .faq-search__input::placeholder {
  color: var(--graphite);
}

.page-faq .faq-search__hint {
  margin: 10px 0 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- 首屏主图 ---------- */
.page-faq .faq-hero__media {
  margin: 0;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line-strong);
}

.page-faq .faq-hero__media .media__cap {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index__head {
  max-width: 46em;
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-faq .faq-index__note {
  margin: 14px 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-index__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-cat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(20px, 2.4vw, 30px);
  background: var(--white);
  color: inherit;
  text-decoration: none;
  transition: transform var(--t) var(--ease), background var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.page-faq .faq-cat:hover {
  background: var(--ivory);
  box-shadow: inset 0 0 0 1px var(--gold);
  transform: translateY(-4px);
}

.page-faq .faq-cat__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--gold-ink);
}

.page-faq .faq-cat__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  line-height: 1.3;
  color: var(--navy);
}

.page-faq .faq-cat__desc {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-faq .faq-cat__count {
  margin-top: auto;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

/* ---------- 问答区骨架 ---------- */
.page-faq .faq-groups__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
}

.page-faq .faq-groups__main {
  min-width: 0;
}

.page-faq .faq-groups__aside {
  display: none;
}

/* ---------- 引导条 ---------- */
.page-faq .faq-guide {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: 0 0 clamp(32px, 4vw, 52px);
  overflow: hidden;
}

.page-faq .faq-guide__media {
  margin: 0;
}

.page-faq .faq-guide__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 1;
  object-fit: cover;
}

.page-faq .faq-guide__text {
  padding: clamp(18px, 2.4vw, 28px);
}

.page-faq .faq-guide__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--navy);
}

.page-faq .faq-guide__text p:last-child {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-top: clamp(30px, 4vw, 52px);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--frame-h) + 24px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: clamp(16px, 2vw, 24px);
}

.page-faq .faq-group__id {
  flex: 0 0 auto;
  padding: 4px 8px;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  color: var(--gold-ink);
}

.page-faq .faq-group__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
  line-height: 1.25;
  color: var(--navy);
}

.page-faq .faq-group__desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item {
  border-left: 3px solid transparent;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--jade);
  background: var(--white);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: clamp(14px, 1.6vw, 18px) clamp(14px, 1.6vw, 20px);
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.65;
  color: var(--navy);
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .faq-item__q:hover {
  color: var(--gold-ink);
}

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  margin-top: 4px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--graphite);
  transition: transform var(--t) var(--ease), background var(--t) var(--ease);
}

.page-faq .faq-item__mark::before {
  top: 7px;
  left: 0;
  right: 0;
  height: 1px;
}

.page-faq .faq-item__mark::after {
  top: 0;
  bottom: 0;
  left: 7px;
  width: 1px;
}

.page-faq .faq-item[open] .faq-item__mark::before {
  background: var(--jade);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: scaleY(0);
}

.page-faq .faq-item__a {
  padding: 0 clamp(14px, 1.6vw, 20px) clamp(16px, 2vw, 22px);
  animation: faq-answer-in var(--t) var(--ease) both;
}

.page-faq .faq-item__a p {
  max-width: 34em;
  margin: 0 0 10px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__a a {
  color: var(--jade-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: border-color var(--t-fast) var(--ease);
}

.page-faq .faq-item__a a:hover {
  border-color: var(--jade);
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 右侧锚点刻度 ---------- */
.page-faq .faq-rail {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--line);
}

.page-faq .faq-rail a {
  display: block;
  margin-left: -1px;
  padding: 10px 0 10px 16px;
  border-left: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: var(--graphite);
  text-decoration: none;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-faq .faq-rail a:hover {
  color: var(--navy);
}

.page-faq .faq-rail a[aria-current] {
  color: var(--gold-ink);
  border-left-color: var(--gold);
}

/* ---------- 条形图 ---------- */
.page-faq .faq-chart__head {
  max-width: 44em;
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-faq .faq-chart__note {
  margin: 14px 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-chart__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-faq .faq-chart__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "label val"
    "track track";
  gap: 6px 12px;
  align-items: center;
}

.page-faq .faq-chart__label {
  grid-area: label;
  font-size: 0.9375rem;
  color: var(--navy);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  justify-self: start;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-chart__label:hover {
  color: var(--gold-ink);
  border-color: var(--gold);
}

.page-faq .faq-chart__track {
  grid-area: track;
  position: relative;
  display: block;
  height: 10px;
  background: rgba(107, 122, 143, 0.16);
  overflow: hidden;
}

.page-faq .faq-chart__fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--w, 50%);
  background: linear-gradient(90deg, var(--navy-mid), var(--gold));
}

.page-faq .faq-chart__val {
  grid-area: val;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--graphite);
  text-align: right;
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  color: var(--ivory);
}

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-faq .faq-contact__title {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-contact__text {
  max-width: 34em;
  margin: 0 0 24px;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(245, 241, 232, 0.78);
}

.page-faq .faq-contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-contact__card {
  padding: clamp(20px, 2.6vw, 32px);
  background: rgba(18, 48, 74, 0.55);
  border: 1px solid var(--line-dark);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-contact__row:first-child {
  padding-top: 0;
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--gold-light);
}

.page-faq .faq-contact__v {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-contact__v--mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-faq .faq-contact__note {
  margin: 18px 0 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: rgba(245, 241, 232, 0.7);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-faq .faq-guide {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }

  .page-faq .faq-chart__row {
    grid-template-columns: 200px minmax(0, 1fr) 64px;
    grid-template-areas: "label track val";
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-faq .faq-hero__media {
    margin-top: 34px;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-groups__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 3fr);
  }

  .page-faq .faq-groups__aside {
    display: block;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--frame-h) + 28px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__a,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-rail a,
  .page-faq .faq-chart__label {
    transition: none;
    animation: none;
  }
}

.page-faq {
  --w: 1rem;
}