/* ============================================================
   问答中心 —— 页面专属样式（作用域 .page-faq）
   ============================================================ */

.page-faq {
  position: relative;
  padding-top: clamp(96px, 13vw, 148px);
  padding-bottom: clamp(56px, 8vw, 104px);
  color: var(--c-white);
  overflow-x: clip;
}

/* ---------- 页首 ---------- */

.page-faq .faq-masthead {
  position: relative;
  margin-bottom: clamp(34px, 5vw, 60px);
}

.page-faq .faq-masthead .breadcrumbs {
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-mist);
}

.page-faq .faq-masthead .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-masthead .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--c-tactical);
}

.page-faq .faq-masthead .breadcrumbs__link {
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-masthead .breadcrumbs__link:hover {
  color: var(--c-acid);
  border-bottom-color: var(--c-acid);
}

.page-faq .faq-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-acid);
}

.page-faq .faq-eyebrow::before {
  content: "";
  display: block;
  width: 28px;
  height: 2px;
  background: var(--c-acid);
}

.page-faq .faq-title {
  margin: 0 0 20px;
  max-width: 18em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: -.022em;
  color: var(--c-white);
}

.page-faq .faq-lede {
  margin: 0 0 clamp(28px, 4vw, 44px);
  max-width: 44rem;
  font-size: clamp(15.5px, 1.4vw, 17.5px);
  line-height: 1.8;
  color: var(--c-mist);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(30, 74, 110, .85);
  border: 1px solid rgba(30, 74, 110, .85);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px;
  background: var(--c-panel);
}

.page-faq .faq-stat .stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(16px, 1.9vw, 21px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--c-acid);
  word-break: break-word;
}

.page-faq .faq-stat .stat__label {
  font-size: 12.5px;
  line-height: 1.5;
  letter-spacing: .05em;
  color: var(--c-mist);
}

@media (min-width: 720px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 主体：侧栏 + 面板 ---------- */

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

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

.page-faq .faq-rail__caption {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-faq .faq-tablist {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--c-tactical) transparent;
}

.page-faq .faq-tablist::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-tablist::-webkit-scrollbar-thumb {
  background: var(--c-tactical);
  border-radius: var(--radius-pill);
}

.page-faq .faq-tab {
  display: flex;
  flex: 0 0 auto;
  align-items: baseline;
  gap: 10px;
  padding: 11px 16px;
  border: 1px solid rgba(30, 74, 110, .9);
  border-radius: var(--radius-pill);
  background: rgba(18, 42, 66, .55);
  color: var(--c-mist);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  white-space: nowrap;
  cursor: pointer;
  transition:
    color var(--dur) var(--ease),
    background var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-faq .faq-tab:hover {
  color: var(--c-white);
  border-color: var(--c-acid);
}

.page-faq .faq-tab[aria-selected="true"] {
  color: var(--c-black);
  background: var(--c-acid);
  border-color: var(--c-acid);
}

.page-faq .faq-tab__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  opacity: .8;
}

.page-faq .faq-tab__name {
  font-size: 15px;
}

.page-faq .faq-tab__meta {
  display: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  opacity: .75;
}

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

@media (min-width: 900px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(208px, 262px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 108px;
  }

  .page-faq .faq-tablist {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-tab {
    width: 100%;
    align-items: center;
    gap: 12px;
    padding: 13px 14px 13px 18px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    border-width: 1px 1px 1px 2px;
    border-color: rgba(30, 74, 110, .8);
    border-left-color: var(--c-tactical);
    background: transparent;
    white-space: normal;
    text-align: left;
  }

  .page-faq .faq-tab[aria-selected="true"] {
    color: var(--c-white);
    background: linear-gradient(96deg, rgba(57, 255, 20, .14), rgba(57, 255, 20, 0) 78%);
    border-left-color: var(--c-acid);
    border-top-color: rgba(30, 74, 110, .8);
    border-right-color: rgba(30, 74, 110, .8);
    border-bottom-color: rgba(30, 74, 110, .8);
  }

  .page-faq .faq-tab__meta {
    display: inline-block;
    margin-left: auto;
  }
}

/* ---------- 答案面板 ---------- */

.page-faq .faq-panel {
  padding: clamp(22px, 3.4vw, 44px);
  background: var(--c-panel);
  border: 1px solid rgba(30, 74, 110, .72);
  border-radius: var(--radius);
}

.page-faq .faq-panel:focus-visible {
  outline: 2px solid var(--c-acid);
  outline-offset: 3px;
}

.page-faq .faq-panel__head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-panel__title {
  margin: 14px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.9vw, 31px);
  line-height: 1.28;
  letter-spacing: -.016em;
  color: var(--c-white);
}

.page-faq .faq-panel__intro {
  margin: 0;
  max-width: 40rem;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--c-mist);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid rgba(30, 74, 110, .8);
}

.page-faq .faq-item {
  border-bottom: 1px solid rgba(30, 74, 110, .8);
  transition: border-color var(--dur-long) var(--ease);
}

.page-faq .faq-item[open] {
  border-bottom-color: rgba(57, 255, 20, .55);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 40px 18px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15.5px, 1.7vw, 18px);
  line-height: 1.5;
  color: var(--c-white);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover {
  color: var(--c-acid);
}

.page-faq .faq-item__q::before,
.page-faq .faq-item__q::after {
  content: "";
  position: absolute;
  right: 6px;
  top: 50%;
  background: var(--c-mist);
  transition:
    background var(--dur) var(--ease),
    transform var(--dur-long) var(--ease);
}

.page-faq .faq-item__q::after {
  width: 13px;
  height: 2px;
  margin-top: -1px;
}

.page-faq .faq-item__q::before {
  right: 11.5px;
  width: 2px;
  height: 13px;
  margin-top: -6.5px;
}

.page-faq .faq-item[open] .faq-item__q::after {
  background: var(--c-acid);
}

.page-faq .faq-item[open] .faq-item__q::before {
  background: var(--c-acid);
  transform: scaleY(0);
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  line-height: 1.8;
  color: var(--c-acid);
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--c-orange);
}

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

.page-faq .faq-item__a {
  padding: 0 40px 22px 0;
  max-width: 42rem;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-mist);
}

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

@media (min-width: 900px) {
  .page-faq .faq-item__q {
    padding: 22px 48px 22px 0;
  }

  .page-faq .faq-item__a {
    padding: 0 48px 26px 0;
    font-size: 16px;
  }
}

/* ---------- 图片 ---------- */

.page-faq .faq-figure {
  margin: clamp(26px, 3.6vw, 42px) 0 0;
}

.page-faq .faq-figure .figure__img {
  overflow: hidden;
  border: 1px solid rgba(30, 74, 110, .8);
  border-radius: var(--radius-sm);
  background: linear-gradient(140deg, #122A42 0%, #0A1A2F 58%, rgba(255, 107, 53, .22) 100%);
}

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

.page-faq .faq-figure .figure__cap {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--c-mist);
}

/* ---------- 延伸入口 ---------- */

.page-faq .faq-next {
  margin-top: clamp(48px, 7vw, 92px);
  padding-top: clamp(30px, 4vw, 48px);
  border-top: 1px solid rgba(30, 74, 110, .85);
}

.page-faq .faq-next__title {
  margin: 0 0 clamp(18px, 3vw, 28px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.5vw, 27px);
  line-height: 1.3;
  letter-spacing: -.016em;
  color: var(--c-white);
}

.page-faq .faq-next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-next__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px;
  border: 1px solid rgba(30, 74, 110, .8);
  border-radius: var(--radius);
  background: linear-gradient(158deg, rgba(18, 42, 66, .92), rgba(10, 26, 47, .55));
  text-decoration: none;
  color: var(--c-white);
  transition:
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-faq .faq-next__card:hover {
  border-color: var(--c-acid);
  transform: translateY(-3px);
}

.page-faq .faq-next__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-orange);
}

.page-faq .faq-next__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -.01em;
}

.page-faq .faq-next__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-mist);
}

@media (min-width: 720px) {
  .page-faq .faq-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

/* ---------- 可访问性 ---------- */

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tab,
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__q::before,
  .page-faq .faq-item__q::after,
  .page-faq .faq-next__card {
    transition-duration: 1ms;
  }

  .page-faq .faq-next__card:hover {
    transform: none;
  }
}
<<<END>>>