.page-faq {
  --faq-sticky-top: 104px;
  --faq-gap: clamp(20px, 4vw, 32px);
  --faq-rule: rgba(20, 69, 111, 0.85);
  background: var(--c-abyss);
  color: var(--c-text);
  font-family: var(--font-cn);
  overflow-x: hidden;
}

.page-faq .breadcrumb {
  padding-top: 20px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 20px 0 clamp(40px, 6vw, 72px);
  border-bottom: 1px solid var(--c-grid-dim);
  background:
    linear-gradient(180deg, rgba(20, 69, 111, 0.45) 0%, rgba(7, 26, 47, 0) 72%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(90deg, var(--c-grid-dim) 1px, transparent 1px);
  background-size: 72px 100%;
  opacity: 0.3;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  align-items: end;
}

.page-faq .faq-hero__lead {
  max-width: 66ch;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 7.4vw, 56px);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--c-text);
}

.page-faq .faq-hero__intro {
  margin: 20px 0 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--c-fog);
  max-width: 62ch;
}

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

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

/* ---------- 先看这三条（浅色区块） ---------- */
.page-faq .faq-top3 {
  background: var(--c-paper);
  color: var(--c-ink);
  padding: clamp(44px, 7vw, 80px) 0;
  scroll-margin-top: var(--faq-sticky-top);
}

.page-faq .faq-top3__label {
  color: #7A6A5C;
}

.page-faq .faq-top3__title {
  margin: 10px 0 0;
  font-size: clamp(28px, 6vw, 44px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}

.page-faq .faq-top3__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: 28px;
}

.page-faq .faq-top3__fig {
  margin: 0;
}

.page-faq .faq-top3__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-top3__item {
  padding: 22px 0;
  border-top: 1px solid rgba(27, 20, 16, 0.18);
}

.page-faq .faq-top3__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-top3__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: #B5432A;
}

.page-faq .faq-top3__q {
  margin: 8px 0 0;
  font-size: clamp(19px, 4vw, 22px);
  line-height: 1.45;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}

.page-faq .faq-top3__a {
  margin: 10px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: #4A3E35;
  max-width: 62ch;
}

.page-faq .faq-top3__a a {
  color: #B5432A;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-top3__a a:hover,
.page-faq .faq-top3__a a:focus-visible {
  color: var(--c-ink);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: clamp(40px, 6vw, 72px);
}

/* 分组索引 */
.page-faq .faq-index__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--c-grid-dim);
  color: var(--c-fog);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-fog-dim);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--c-text);
  border-color: var(--c-coral);
  background: rgba(20, 69, 111, 0.4);
}

.page-faq .faq-index__link:hover .faq-index__num,
.page-faq .faq-index__link:focus-visible .faq-index__num {
  color: var(--c-coral);
}

/* 分组 */
.page-faq .faq-group {
  margin-bottom: clamp(40px, 6vw, 64px);
  scroll-margin-top: var(--faq-sticky-top);
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-grid);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--c-coral);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(22px, 4.6vw, 30px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--c-text);
}

.page-faq .faq-group__note {
  margin: 16px 0 6px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-fog);
  max-width: 66ch;
}

/* 折叠问答 */
.page-faq .qa {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  color: var(--c-text);
  transition: color 0.2s var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.4;
  color: var(--c-fog);
  transition: color 0.2s var(--ease);
}

.page-faq .qa[open] > .qa__q::after {
  content: "\2212";
  color: var(--c-coral);
}

.page-faq .qa__q:hover,
.page-faq .qa__q:hover::after {
  color: var(--c-coral-soft);
}

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

.page-faq .qa__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-fog-dim);
}

.page-faq .qa__title {
  flex: 1 1 auto;
  margin: 0;
  font-size: 17px;
  line-height: 1.6;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.page-faq .qa__a {
  padding: 0 0 22px 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--c-fog);
  max-width: 66ch;
}

.page-faq .qa__a p {
  margin: 0 0 12px;
}

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

.page-faq .qa__a a {
  color: var(--c-coral-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__a a:hover,
.page-faq .qa__a a:focus-visible {
  color: var(--c-coral);
}

/* 操作步骤 */
.page-faq .qa-steps {
  list-style: none;
  margin: 6px 0 16px;
  padding: 0 0 0 16px;
  border-left: 1px solid var(--c-grid);
}

.page-faq .qa-steps__item {
  padding: 5px 0;
  position: relative;
}

.page-faq .qa-steps__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-coral);
  margin-right: 10px;
}

.page-faq .qa-steps__item::after {
  content: "";
  position: absolute;
  left: -19px;
  top: 14px;
  width: 5px;
  height: 5px;
  background: var(--c-grid);
}

/* 提示条 */
.page-faq .qa-note {
  margin: 14px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--c-mint);
  background: rgba(63, 216, 168, 0.07);
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .qa-note--act {
  border-left-color: var(--c-coral);
  background: rgba(255, 107, 69, 0.08);
}

/* ---------- 没找到答案 ---------- */
.page-faq .faq-help {
  margin-top: clamp(40px, 6vw, 64px);
  scroll-margin-top: var(--faq-sticky-top);
}

.page-faq .faq-help__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding: 28px 22px;
  border: 1px solid var(--c-grid);
  background: var(--c-panel);
}

.page-faq .faq-help__title {
  margin: 10px 0 0;
  font-size: clamp(24px, 5vw, 32px);
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--c-text);
}

.page-faq .faq-help__text {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--c-fog);
  max-width: 52ch;
}

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

.page-faq .faq-help__item {
  position: relative;
  padding: 13px 0 13px 22px;
  border-bottom: 1px solid var(--c-grid-dim);
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-text);
}

.page-faq .faq-help__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 21px;
  width: 8px;
  height: 2px;
  background: var(--c-coral);
}

.page-faq .faq-help__meta {
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-fog);
  max-width: 52ch;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 图片 ---------- */
.page-faq .fig-frame__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 平板及桌面 ---------- */
@media (min-width: 760px) {
  .page-faq .fig-frame__cap {
    margin-top: 12px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: 32px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
  }

  .page-faq .faq-top3__grid {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
    margin-top: 36px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 236px 1fr;
    gap: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-top);
    align-self: start;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    margin-top: 14px;
  }

  .page-faq .faq-index__link {
    border: 0;
    border-left: 2px solid transparent;
    padding: 12px 14px;
    white-space: normal;
    transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
  }

  .page-faq .faq-help__panel {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    padding: 40px 36px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 6fr 6fr;
  }

  .page-faq .faq-top3__grid {
    grid-template-columns: 5fr 7fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .qa__q,
  .page-faq .qa__q::after {
    transition: none;
  }
}