/* ===== 知识中心 · 问询窗口 ===== */

.page-faq .page-head {
  padding: 36px 0 32px;
  border-bottom: var(--line) solid var(--red);
}

.page-faq .faq-shortcuts {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-intro-strip {
  margin: 26px 0 0;
  padding: 14px 0 0;
  border-top: var(--line) solid var(--gold);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-intro-strip strong {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--red);
  margin-right: 4px;
}

.page-faq .faq-body {
  padding: 44px 0 64px;
}

/* --- 两栏骨架 --- */

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}

.page-faq .faq-shell > * {
  min-width: 0;
}

@media (min-width: 900px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
    gap: 52px;
  }
}

/* --- 左侧问题索引 --- */

.page-faq .faq-index {
  background: var(--paper);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow);
  padding: 20px 18px 22px;
}

@media (min-width: 900px) {
  .page-faq .faq-index {
    position: sticky;
    top: 88px;
    max-height: calc(100vh - 116px);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
}

.page-faq .faq-index__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: var(--line) solid var(--red);
  margin-bottom: 16px;
}

.page-faq .faq-index__head .eyebrow {
  margin: 0;
}

.page-faq .faq-index__count {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
  white-space: nowrap;
}

.page-faq .faq-index__count .num {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--red);
  margin-right: 3px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 22px;
}

.page-faq .faq-group__title {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.3em;
  color: var(--red-dark);
}

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

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 7px 8px;
  border-left: 3px solid transparent;
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.55;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover {
  background: var(--gold-light);
  border-left-color: var(--gold);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-faq .faq-index__num {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--red);
}

.page-faq .faq-index__figure {
  margin: 24px 0 0;
}

.page-faq .faq-index__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* --- 右侧答案区 --- */

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

.page-faq .faq-block {
  scroll-margin-top: 104px;
}

.page-faq .faq-block + .faq-block {
  margin-top: 52px;
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 10px;
  border-bottom: var(--line) solid var(--ink);
  margin-bottom: 20px;
}

.page-faq .faq-block__letter {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 26px;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-block__count {
  margin-left: auto;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
  white-space: nowrap;
}

/* --- 折叠条目 --- */

.page-faq .details-panel {
  background: var(--paper);
  border: var(--line) solid var(--red);
  box-shadow: var(--shadow);
  margin: 0 0 18px;
  scroll-margin-top: 96px;
}

.page-faq .details-panel > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 14px;
  gap: 10px;
  align-items: start;
  padding: 15px 16px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  transition: background-color var(--dur) var(--ease);
}

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

.page-faq .details-panel > summary:hover {
  background: var(--gold-light);
}

.page-faq .details-panel > summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -6px;
}

.page-faq .details-panel[open] > summary {
  background: var(--cream);
  border-bottom: var(--line) solid var(--red);
}

.page-faq .faq-q__num {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--red);
  padding-top: 2px;
}

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

.page-faq .faq-q__mark {
  width: 0;
  height: 0;
  margin-top: 7px;
  border-left: 7px solid var(--gold);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  transition: transform var(--dur) var(--ease);
}

.page-faq .details-panel[open] .faq-q__mark {
  transform: rotate(90deg);
}

.page-faq .details-panel__body {
  background: var(--paper);
  padding: 16px 18px 20px 58px;
}

.page-faq .details-panel__body p {
  margin: 0 0 12px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
}

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

.page-faq .faq-path {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--red);
}

.page-faq .faq-path::before {
  content: "";
  flex: none;
  width: 22px;
  height: 2px;
  margin-top: 9px;
  background: var(--gold);
}

/* --- 区块配图 --- */

.page-faq .faq-figure {
  margin: 0 0 22px;
}

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

/* --- 兜底入口 --- */

.page-faq .faq-fallback {
  margin-top: 52px;
  padding: 28px 24px;
  background: var(--red);
  color: var(--cream);
  border: var(--line) solid var(--red-dark);
  box-shadow: 6px 6px 0 var(--red-dark);
}

.page-faq .faq-fallback h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-fallback p {
  margin: 0 0 14px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--cream);
}

.page-faq .faq-fallback .btn {
  margin-top: 6px;
}

/* --- 窄屏收束 --- */

@media (max-width: 899px) {
  .page-faq .faq-index {
    position: static;
    max-height: none;
    overflow: visible;
  }

  .page-faq .faq-block + .faq-block {
    margin-top: 40px;
  }
}

@media (max-width: 560px) {
  .page-faq .details-panel__body {
    padding: 14px 16px 18px;
  }

  .page-faq .details-panel > summary {
    grid-template-columns: 26px minmax(0, 1fr) 12px;
    gap: 8px;
    padding: 13px 13px;
    font-size: 15px;
  }

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

  .page-faq .faq-block__count {
    margin-left: 0;
  }

  .page-faq .faq-fallback {
    padding: 22px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .details-panel > summary,
  .page-faq .faq-q__mark,
  .page-faq .faq-index__link {
    transition: none;
  }
}