.page-faq {
  --faq-rail-w: 232px;
  --faq-ease: cubic-bezier(.22, .7, .3, 1);
  --faq-panel-bg: linear-gradient(180deg, rgba(28, 78, 63, .92), rgba(18, 54, 44, .96));
  --faq-card-bg: rgba(18, 54, 44, .72);
  --faq-hair: rgba(46, 115, 96, .4);
  background: var(--dj-ink);
  color: var(--dj-paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(24px, 4vw, 48px) clamp(32px, 5vw, 60px);
  background-image:
    linear-gradient(rgba(46, 115, 96, .16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 115, 96, .16) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: center top;
  border-bottom: 1px solid var(--dj-line-soft);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .28em;
  color: var(--dj-cyan);
}

.page-faq .faq-hero__title {
  margin: 0 0 18px;
  font-family: var(--dj-font-display);
  font-size: clamp(30px, 5.4vw, 54px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--dj-paper);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: rgba(242, 237, 227, .83);
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 12px;
  border-top: 2px solid var(--dj-line);
}

.page-faq .faq-hero__stat-num {
  font-size: 26px;
  line-height: 1.1;
  color: var(--dj-cyan);
  letter-spacing: -.01em;
}

.page-faq .faq-hero__stat-unit {
  margin-left: 2px;
  font-size: 14px;
}

.page-faq .faq-hero__stat-label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--dj-muted);
}

.page-faq .faq-hero__figure {
  margin: 0;
  min-height: 220px;
}

/* ---------- 四类问题快速导航 ---------- */
.page-faq .faq-jump {
  padding-block: clamp(30px, 4.2vw, 56px);
  border-bottom: 1px solid var(--dj-line-soft);
  background: linear-gradient(180deg, rgba(11, 30, 25, .7), rgba(11, 30, 25, 0));
}

.page-faq .faq-jump__head {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 24px;
  align-items: baseline;
  margin-bottom: 22px;
}

.page-faq .faq-jump__title {
  margin: 0;
  font-family: var(--dj-font-display);
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 800;
  letter-spacing: -.015em;
  color: var(--dj-paper);
}

.page-faq .faq-jump__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--dj-muted);
}

.page-faq .faq-jump__grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-faq .faq-jump__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 20px 18px 24px;
  min-height: 176px;
  background: var(--faq-panel-bg);
  border: 1px solid var(--dj-line-soft);
  clip-path: var(--dj-cut);
  text-decoration: none;
  color: var(--dj-paper);
  transition: border-color .25s var(--faq-ease), transform .25s var(--faq-ease);
}

.page-faq .faq-jump__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--dj-cyan);
  opacity: .5;
  transition: opacity .25s var(--faq-ease);
}

.page-faq .faq-jump__card:hover,
.page-faq .faq-jump__card:focus-visible {
  border-color: var(--dj-cyan);
  transform: translateY(-3px);
}

.page-faq .faq-jump__card:hover::before,
.page-faq .faq-jump__card:focus-visible::before {
  opacity: 1;
}

.page-faq .faq-jump__idx {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--dj-cyan);
}

.page-faq .faq-jump__card-title {
  font-family: var(--dj-font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-faq .faq-jump__card-text {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(242, 237, 227, .76);
}

.page-faq .faq-jump__count {
  margin-top: auto;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--dj-cyan);
  opacity: .85;
}

/* ---------- 主体：分类轨道 + 问答 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 3vw, 48px);
  padding-block: clamp(32px, 5vw, 64px);
}

.page-faq .faq-rail {
  padding-left: 16px;
  border-left: 2px solid var(--dj-line);
}

.page-faq .faq-rail__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--dj-muted);
}

.page-faq .faq-rail__nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-rail__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 12px;
  font-size: 14px;
  line-height: 1.5;
  color: rgba(242, 237, 227, .78);
  text-decoration: none;
  border-radius: 8px;
  transition: background .22s var(--faq-ease), color .22s var(--faq-ease);
}

.page-faq .faq-rail__no {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--dj-cyan);
  opacity: .8;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--dj-cyan);
  color: var(--dj-ink);
}

.page-faq .faq-rail__link:hover .faq-rail__no,
.page-faq .faq-rail__link:focus-visible .faq-rail__no {
  color: var(--dj-ink);
  opacity: .7;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(38px, 5vw, 64px);
  scroll-margin-top: 110px;
}

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

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 4px;
  align-items: baseline;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--dj-line);
}

.page-faq .faq-group__idx {
  grid-row: 1 / span 2;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1;
  color: var(--dj-cyan);
  opacity: .5;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--dj-font-display);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  letter-spacing: -.015em;
  color: var(--dj-paper);
}

.page-faq .faq-group__sub {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--dj-muted);
}

.page-faq .faq-group__split {
  display: grid;
  gap: 18px;
}

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

/* ---------- 折叠问答条目 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-item {
  background: var(--faq-card-bg);
  border: 1px solid var(--dj-line-soft);
  clip-path: var(--dj-cut);
  transition: border-color .25s var(--faq-ease), background .25s var(--faq-ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(46, 115, 96, .62);
}

.page-faq .faq-item[open] {
  background: rgba(28, 78, 63, .68);
  border-color: rgba(111, 227, 200, .42);
}

.page-faq .faq-item__q {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--dj-paper);
}

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

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--dj-cyan);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--dj-cyan);
  opacity: .8;
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin: 6px 2px 0 0;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--dj-cyan);
  transition: transform .28s var(--faq-ease), opacity .28s var(--faq-ease);
}

.page-faq .faq-item__mark::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

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

.page-faq .faq-item__a {
  margin: 0 18px 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--faq-hair);
  animation: faq-item-open .3s var(--faq-ease) both;
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.88;
  color: rgba(242, 237, 227, .85);
}

@keyframes faq-item-open {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 联系路径 ---------- */
.page-faq .faq-group--contact {
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-faq .faq-contact__panel {
  position: relative;
  padding: clamp(24px, 4vw, 46px);
  background: linear-gradient(115deg, rgba(28, 78, 63, .96) 0%, rgba(18, 54, 44, .97) 58%, rgba(11, 30, 25, .99) 100%);
  border: 1px solid var(--dj-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
  overflow: hidden;
}

.page-faq .faq-contact__panel::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(111, 227, 200, .18), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-contact__grid {
  position: relative;
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-faq .faq-contact__intro p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 237, 227, .85);
}

.page-faq .faq-contact__links {
  font-size: 14px !important;
  color: rgba(242, 237, 227, .72) !important;
}

.page-faq .faq-contact__intro a {
  color: var(--dj-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 227, 200, .45);
}

.page-faq .faq-contact__intro a:hover,
.page-faq .faq-contact__intro a:focus-visible {
  color: var(--dj-sand);
  border-bottom-color: rgba(224, 138, 60, .6);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-contact__item {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(46, 115, 96, .38);
}

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

.page-faq .faq-contact__label {
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--dj-muted);
}

.page-faq .faq-contact__value {
  font-size: 15px;
  line-height: 1.7;
  color: var(--dj-paper);
  word-break: break-word;
}

.page-faq .faq-contact__value a {
  color: var(--dj-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 227, 200, .4);
}

.page-faq .faq-contact__value a:hover,
.page-faq .faq-contact__value a:focus-visible {
  color: var(--dj-sand);
  border-bottom-color: rgba(224, 138, 60, .6);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1023px) {
  .page-faq .faq-rail {
    padding-left: 0;
    border-left: 0;
  }

  .page-faq .faq-rail__nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }

  .page-faq .faq-rail__link {
    padding: 7px 14px;
    font-size: 13px;
    background: rgba(28, 78, 63, .7);
    border: 1px solid var(--dj-line-soft);
    border-radius: 999px;
  }
}

@media (min-width: 560px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

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

@media (min-width: 860px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-faq .faq-group__split {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
    align-self: start;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-jump__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-jump__card {
    transition: none;
  }

  .page-faq .faq-jump__card:hover,
  .page-faq .faq-jump__card:focus-visible {
    transform: none;
  }
}