.page-faq {
  --faq-gap: clamp(20px, 3vw, 40px);
  --faq-figure-w: 300px;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: clamp(16px, 2.4vw, 26px);
}

.page-faq .faq-crumb .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
}

.page-faq .faq-crumb .breadcrumbs__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-crumb .breadcrumbs__link:hover,
.page-faq .faq-crumb .breadcrumbs__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-crumb .breadcrumbs__sep {
  color: var(--line);
}

.page-faq .faq-crumb .breadcrumbs__current {
  color: var(--ink-soft);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  padding-block: clamp(22px, 4vw, 44px) clamp(24px, 4vw, 46px);
  border-bottom: 1px solid var(--line);
}

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

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(28px, 5.6vw, 54px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
}

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

.page-faq .faq-hero__mark {
  color: var(--cyan);
  border-bottom: 4px solid rgba(53, 242, 208, 0.28);
}

.page-faq .faq-hero__lede {
  max-width: 56ch;
  margin: 16px 0 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero__art {
  position: relative;
  min-width: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  overflow: hidden;
}

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

.page-faq .faq-hero__art::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--amber));
}

/* ---------- 概览数字 ---------- */
.page-faq .faq-meta {
  padding-block: clamp(18px, 3vw, 30px);
}

.page-faq .faq-meta__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-meta__cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 13px 15px;
  background: var(--panel);
}

.page-faq .faq-meta__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-meta__value {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--amber);
}

.page-faq .faq-meta__value--sm {
  font-size: 17px;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding-block: clamp(26px, 4vw, 44px) clamp(36px, 5vw, 72px);
}

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

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 13.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(53, 242, 208, 0.06);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--amber);
}

/* ---------- 分组 ---------- */
.page-faq .faq-panel {
  min-width: 0;
}

.page-faq .faq-group {
  --g: var(--cyan);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-group--amber {
  --g: var(--amber);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(28px, 4vw, 52px);
  padding-top: clamp(24px, 3.4vw, 42px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-faq .faq-group__no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--g);
  padding: 3px 8px;
  border-radius: 1px;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--paper);
}

.page-faq .faq-group__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-group:target .faq-group__no {
  background: var(--paper);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
  transition: background 0.2s var(--ease);
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 4px;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  transition: color 0.18s var(--ease);
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--g);
}

.page-faq .faq-item__num {
  flex: 0 0 34px;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--mist);
}

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

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

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--mist);
  transition: transform 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-item__icon::before {
  left: 0;
  right: 0;
  top: 7px;
  height: 2px;
}

.page-faq .faq-item__icon::after {
  top: 0;
  bottom: 0;
  left: 7px;
  width: 2px;
}

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

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

.page-faq .faq-item__a {
  padding: 0 18px 18px 46px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

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

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.4);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

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

/* ---------- 移动端图文 ---------- */
.page-faq .faq-group__inner--media {
  display: grid;
  gap: 18px;
}

.page-faq .faq-figure {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  object-fit: cover;
}

.page-faq .faq-figure__cap {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 联系控制台 ---------- */
.page-faq .faq-contact {
  margin-top: 22px;
  padding: 16px 16px 14px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  background: var(--coal);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact__k {
  flex: 0 0 72px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-contact__v {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--amber);
  word-break: break-all;
}

.page-faq .faq-contact__v--text {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--paper);
  word-break: normal;
}

.page-faq .copy-btn {
  margin-left: auto;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 1px;
  background: transparent;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .copy-btn:hover,
.page-faq .copy-btn:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .copy-btn[data-copied="true"] {
  color: var(--amber);
  border-color: var(--amber);
}

.page-faq .faq-contact__note {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .copy-status {
  min-height: 1em;
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--cyan);
}

/* ---------- 收口 ---------- */
.page-faq .faq-cta {
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-faq .faq-cta__box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: clamp(20px, 3.2vw, 34px);
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-faq .faq-cta__text {
  min-width: 0;
  flex: 1 1 260px;
}

.page-faq .faq-cta__title {
  margin: 0;
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-cta__note {
  margin: 8px 0 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-meta__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-hero__br {
    display: inline;
  }

  .page-faq .faq-hero__lede {
    font-size: 16px;
  }

  .page-faq .faq-item__q {
    font-size: 16.5px;
  }

  .page-faq .faq-item__a {
    padding-right: 34px;
    font-size: 15px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
  }

  .page-faq .faq-group__inner--media {
    grid-template-columns: minmax(0, 1fr) var(--faq-figure-w);
    align-items: start;
    gap: 26px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__link {
    border-radius: 0;
    border-color: transparent;
    border-left: 2px solid var(--line);
    padding: 10px 12px 10px 14px;
    white-space: normal;
    font-size: 14px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--cyan);
  }

  .page-faq .faq-group__no {
    font-size: 13px;
    padding: 4px 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-index__link,
  .page-faq .copy-btn {
    transition: none;
  }
}