.page-faq {
  --faq-rule: rgba(42, 36, 64, .92);
}

.page-faq .breadcrumb {
  padding-top: clamp(18px, 3vw, 30px);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist-dim);
}

.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--electric);
  border-bottom-color: var(--electric);
}

.page-faq .breadcrumb-sep {
  margin: 0 .5rem;
  color: var(--mist-faint);
}

/* ---------- 首屏：文字建筑 + 目录索引 ---------- */
.page-faq .faq-hero {
  padding: clamp(30px, 5vw, 58px) 0 clamp(38px, 5.5vw, 78px);
}

.page-faq .faq-hero .grid-12 {
  align-items: end;
  row-gap: clamp(26px, 4vw, 40px);
}

.page-faq .eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--electric);
  margin: 0 0 1rem;
}

.page-faq .faq-title {
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -.015em;
  color: var(--white);
  margin: 0 0 1.15rem;
}

.page-faq .faq-title em {
  font-style: normal;
  color: var(--neon);
  text-shadow: 0 0 24px rgba(155, 92, 255, .45);
}

.page-faq .faq-lead {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.95;
  color: var(--mist-dim);
}

.page-faq .faq-hero-side {
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

.page-faq .faq-index {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-index li {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-index a {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  padding: .72rem .1rem;
  font-size: 15px;
  color: var(--mist);
  text-decoration: none;
  transition: color .25s var(--ease), padding-left .25s var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--white);
  padding-left: .5rem;
}

.page-faq .idx-num {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--neon);
}

/* ---------- 问题组 ---------- */
.page-faq .faq-group {
  border-top: 1px solid var(--faq-rule);
  padding: clamp(42px, 6.5vw, 88px) 0;
}

.page-faq .faq-group:target {
  background: linear-gradient(90deg, rgba(155, 92, 255, .1), rgba(155, 92, 255, 0) 62%);
}

.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: .6rem;
  margin-bottom: clamp(22px, 3.4vw, 38px);
}

.page-faq .faq-group-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--neon);
}

.page-faq .faq-group-title {
  margin: 0 0 .55rem;
  font-size: clamp(24px, 4.4vw, 40px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .faq-group-lead {
  max-width: 64ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist-dim);
}

.page-faq .faq-group-lead a {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 225, 255, .4);
}

.page-faq .faq-group-lead a:hover {
  border-bottom-color: var(--electric);
}

/* ---------- 列表与折叠条目 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
}

.page-faq .faq-list {
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-q {
  position: relative;
  display: flex;
  align-items: center;
  gap: .9rem;
  padding: 1.05rem 2.6rem 1.05rem 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--electric);
  outline-offset: 3px;
}

.page-faq .faq-q-num {
  flex: none;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mist-faint);
  transition: color .28s var(--ease);
}

.page-faq .faq-q-text {
  font-size: clamp(15px, 1.9vw, 18px);
  line-height: 1.6;
  color: var(--mist);
  transition: color .28s var(--ease);
}

.page-faq .faq-item:hover .faq-q-num,
.page-faq .faq-item[open] .faq-q-num {
  color: var(--neon);
}

.page-faq .faq-item:hover .faq-q-text,
.page-faq .faq-item[open] .faq-q-text {
  color: var(--white);
}

.page-faq .faq-q-mark {
  position: absolute;
  right: .3rem;
  top: 50%;
  width: 14px;
  height: 14px;
  transform: translateY(-50%);
  pointer-events: none;
}

.page-faq .faq-q-mark::before,
.page-faq .faq-q-mark::after {
  content: "";
  position: absolute;
  background: var(--mist-faint);
  transition: transform .32s var(--ease), background .32s var(--ease);
}

.page-faq .faq-q-mark::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 1.5px;
}

.page-faq .faq-q-mark::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 1.5px;
}

.page-faq .faq-item[open] .faq-q-mark::before {
  background: var(--neon);
}

.page-faq .faq-item[open] .faq-q-mark::after {
  transform: scaleY(0);
  background: var(--neon);
}

.page-faq .faq-a {
  position: relative;
  padding: 0 0 1.4rem 1.4rem;
  margin-right: .4rem;
}

.page-faq .faq-a::before {
  content: "";
  position: absolute;
  left: 0;
  top: .35rem;
  bottom: 1.25rem;
  width: 1px;
  background: linear-gradient(180deg, var(--neon), rgba(155, 92, 255, 0));
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.95;
  color: var(--mist-dim);
}

.page-faq .faq-a a {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 225, 255, .4);
}

.page-faq .faq-a a:hover {
  border-bottom-color: var(--electric);
}

.page-faq .faq-item[open] .faq-a {
  animation: faq-answer-in .42s var(--ease) both;
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 图像与侧栏 ---------- */
.page-faq .faq-media {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line);
  background: var(--ink-3);
  overflow: hidden;
}

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

.page-faq .faq-media--side {
  margin-bottom: 1rem;
}

.page-faq .faq-media-cap {
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist-faint);
}

.page-faq .faq-side {
  align-self: start;
}

.page-faq .faq-side-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--mist-faint);
  border-left: 1px solid var(--faq-rule);
  padding-left: 1rem;
}

/* ---------- 批次节奏示意 ---------- */
.page-faq .faq-svg-strip {
  margin: 0 0 clamp(22px, 3.4vw, 36px);
  padding: clamp(12px, 2vw, 20px) 0;
  border-top: 1px solid var(--faq-rule);
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-svg-strip svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-svg-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  fill: var(--mist-faint);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact {
  background: linear-gradient(160deg, var(--ink-2), var(--ink-3));
  border: 1px solid var(--line);
  clip-path: var(--cut-shape);
  padding: clamp(22px, 3.6vw, 42px);
  transition: border-color .3s var(--ease);
}

.page-faq .faq-contact:hover {
  border-color: rgba(155, 92, 255, .55);
}

.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}

.page-faq .faq-contact-item {
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.page-faq .faq-contact-item .contact-key {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist-faint);
}

.page-faq .faq-contact-item .contact-val {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-contact .contact-note {
  margin: 1.4rem 0 1.5rem;
  font-size: 13px;
  line-height: 1.85;
  color: var(--mist-dim);
}

.page-faq .faq-related {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 13px;
  line-height: 1.9;
  color: var(--mist-faint);
}

.page-faq .faq-related a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-rule);
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-related a:hover,
.page-faq .faq-related a:focus-visible {
  color: var(--electric);
  border-bottom-color: var(--electric);
}

/* ---------- 中屏与桌面 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-group-head {
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 1.9rem;
  }

  .page-faq .faq-group-num {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    justify-self: start;
    letter-spacing: .3em;
  }

  .page-faq .faq-contact-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

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

  .page-faq .faq-q {
    padding-right: 3.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-a {
    animation: none;
  }

  .page-faq .faq-index a,
  .page-faq .faq-q-num,
  .page-faq .faq-q-text,
  .page-faq .faq-q-mark::before,
  .page-faq .faq-q-mark::after,
  .page-faq .faq-contact {
    transition: none;
  }
}