.page-faq {
  --faq-aside: 132px;
  --faq-pad: 18px;
  background: linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 52%, var(--ink-800) 100%);
  color: var(--paper);
  padding-bottom: 80px;
}

.page-faq .eyebrow {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: var(--fs-7);
  letter-spacing: 0.14em;
  color: var(--gold);
  text-transform: none;
}

.page-faq .breadcrumb {
  padding: 22px 0 0;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--fs-7);
  font-family: var(--mono);
  color: var(--slate);
}

.page-faq .breadcrumb__link {
  color: var(--slate);
  text-decoration: none;
  transition: color .18s var(--ease);
}

.page-faq .breadcrumb__link:hover {
  color: var(--gold);
}

.page-faq .breadcrumb__current {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: 34px 0 8px;
}

.page-faq .faq-hero__media {
  max-width: 300px;
}

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

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-size: clamp(30px, 7.4vw, var(--fs-1));
  line-height: 1.16;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 0 0 16px;
  font-size: var(--fs-5);
  line-height: 1.85;
  color: rgba(242, 239, 230, .84);
  max-width: 34em;
}

.page-faq .faq-hero__meta {
  margin: 0;
  font-family: var(--mono);
  font-size: var(--fs-7);
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------- 索引总览 ---------- */
.page-faq .faq-overview {
  margin-top: 48px;
  padding: 26px 20px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(6px);
}

.page-faq .faq-overview__head h2 {
  margin: 0 0 8px;
  font-size: clamp(22px, 4.4vw, var(--fs-3));
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-overview__note {
  margin: 0 0 20px;
  font-size: var(--fs-6);
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .faq-overview__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.page-faq .faq-overview__link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(14, 34, 51, .55);
  color: var(--paper);
  text-decoration: none;
  transition: border-color .18s var(--ease), background .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-overview__link:hover,
.page-faq .faq-overview__link:focus-visible {
  border-color: var(--gold-deep);
  background: rgba(22, 50, 74, .9);
  transform: translateX(3px);
  outline: none;
}

.page-faq .faq-overview__num {
  font-family: var(--mono);
  font-size: var(--fs-4);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  flex: none;
}

.page-faq .faq-overview__label {
  font-size: var(--fs-6);
  line-height: 1.5;
  color: rgba(242, 239, 230, .9);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-top: 52px;
}

.page-faq .faq-group__head h2 {
  margin: 0 0 18px;
  font-size: clamp(21px, 4.2vw, var(--fs-3));
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 22em;
}

/* ---------- 折叠条目 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 12px;
}

.page-faq .qa {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(22, 50, 74, .92), rgba(14, 34, 51, .96));
  overflow: hidden;
  scroll-margin-top: 110px;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(245, 165, 36, .42);
  box-shadow: inset 3px 0 0 var(--gold);
}

.page-faq .qa--suggest {
  border-color: rgba(245, 165, 36, .34);
  background: linear-gradient(180deg, rgba(245, 165, 36, .08), rgba(14, 34, 51, .96) 46%);
}

.page-faq .qa__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: var(--faq-pad);
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__num {
  font-family: var(--mono);
  font-size: var(--fs-3);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  flex: none;
}

.page-faq .qa__title {
  font-size: var(--fs-5);
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .qa__flag {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 9px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: var(--fs-7);
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink-800);
  background: var(--gold);
  white-space: nowrap;
  vertical-align: middle;
}

.page-faq .qa__dot {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--slate);
  background: transparent;
  transition: background .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-faq .qa[open] .qa__dot {
  background: var(--jade);
  border-color: var(--jade);
  box-shadow: 0 0 0 4px rgba(63, 191, 160, .16);
}

.page-faq .qa__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: 0 var(--faq-pad) 20px;
}

.page-faq .qa__text {
  margin: 0;
  font-size: var(--fs-5);
  line-height: 1.85;
  color: rgba(242, 239, 230, .84);
  max-width: 34em;
}

.page-faq .qa__text .num {
  font-family: var(--mono);
  color: var(--paper);
  word-break: break-all;
}

.page-faq .qa__aside {
  order: 2;
}

.page-faq .qa__link {
  display: inline-block;
  padding-left: 10px;
  border-left: 2px solid var(--line);
  font-family: var(--mono);
  font-size: var(--fs-6);
  line-height: 1.6;
  color: var(--jade);
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .qa__link:hover,
.page-faq .qa__link:focus-visible {
  color: var(--gold);
  border-left-color: var(--gold-deep);
  outline: none;
}

.page-faq .qa__figure {
  margin: 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-faq .qa__figure-cap {
  padding: 12px var(--faq-pad) 18px;
  font-size: var(--fs-7);
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 尾部延伸 ---------- */
.page-faq .faq-tail {
  margin-top: 56px;
  padding: 26px 20px 28px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--indigo);
  border-radius: var(--radius);
  background: rgba(90, 79, 207, .1);
}

.page-faq .faq-tail__text {
  margin: 0 0 18px;
  font-size: var(--fs-5);
  line-height: 1.85;
  color: rgba(242, 239, 230, .84);
  max-width: 34em;
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 480px) {
  .page-faq {
    --faq-pad: 15px;
  }

  .page-faq .qa__head {
    gap: 11px;
  }

  .page-faq .qa__num {
    font-size: var(--fs-4);
  }

  .page-faq .qa__flag {
    display: inline-block;
    margin: 6px 0 0;
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-overview {
    padding: 32px 30px 34px;
  }

  .page-faq .faq-overview__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .page-faq .qa__body {
    grid-template-columns: var(--faq-aside) minmax(0, 1fr);
    gap: 24px;
    padding-right: 30px;
  }

  .page-faq .qa__text {
    grid-column: 2;
    grid-row: 1;
  }

  .page-faq .qa__aside {
    grid-column: 1;
    grid-row: 1;
    align-self: start;
    order: 0;
  }

  .page-faq .qa__figure {
    margin-top: 4px;
  }

  .page-faq .faq-tail {
    padding: 32px 30px 34px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 54px;
    align-items: center;
    padding: 52px 0 12px;
  }

  .page-faq .faq-hero__media {
    max-width: 360px;
  }

  .page-faq .faq-overview {
    margin-top: 60px;
  }

  .page-faq .faq-group {
    margin-top: 64px;
  }

  .page-faq .qa__head {
    padding: 20px 24px;
  }

  .page-faq .qa__body {
    padding: 0 30px 24px;
  }

  .page-faq .qa__figure-cap {
    padding: 14px 30px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__dot,
  .page-faq .qa__link,
  .page-faq .faq-overview__link,
  .page-faq .breadcrumb__link {
    transition: none;
  }

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