.page-faq {
  --faq-pad: clamp(36px, 6vw, 88px);
  --faq-gap: clamp(30px, 5vw, 68px);
  --faq-ink-soft: rgba(11, 31, 26, .72);
  --faq-ink-faint: rgba(11, 31, 26, .55);
  --faq-ink-line: rgba(11, 31, 26, .14);
  background: var(--ink);
  color: var(--white);
  overflow-x: clip;
}

.page-faq .breadcrumbs {
  margin-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: 18px;
  padding: var(--faq-pad) 0 clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(rgba(138, 154, 149, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 154, 149, .09) 1px, transparent 1px);
  background-size: 76px 76px;
  background-position: -1px -1px;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(36px, 7.6vw, 90px);
  font-weight: 800;
  line-height: .98;
  letter-spacing: -.02em;
}

.page-faq .faq-hero__lead {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1px;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
}

.page-faq .faq-hero__strip > div {
  background: var(--ink-2);
  padding: 16px 18px;
}

.page-faq .faq-hero__strip dt {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-faq .faq-hero__strip dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(17px, 2.1vw, 23px);
  line-height: 1.2;
  color: var(--cyan);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding: var(--faq-pad) 0;
}

/* ---------- 左侧分类刻度 ---------- */
.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--white);
  border-color: var(--cyan);
  background: var(--ink-2);
}

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

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group + .faq-group {
  margin-top: var(--faq-gap);
  padding-top: var(--faq-gap);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  margin-bottom: 22px;
}

.page-faq .faq-group__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.02em;
}

.page-faq .faq-group__note {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 折叠条目 ---------- */
.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  margin-bottom: 10px;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .qa:hover {
  border-color: var(--line-strong);
  background: var(--ink-3);
}

.page-faq .qa[open] {
  border-color: var(--cyan-soft);
  box-shadow: var(--shadow-lift);
  background: var(--ink-2);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
  transition: color var(--dur) var(--ease);
}

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

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

.page-faq .qa__q:hover {
  color: var(--cyan);
}

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

.page-faq .qa__mark {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-left: auto;
  margin-top: 5px;
}

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

.page-faq .qa__mark::before {
  left: 1px;
  top: 7px;
  width: 14px;
  height: 2px;
}

.page-faq .qa__mark::after {
  left: 7px;
  top: 1px;
  width: 2px;
  height: 14px;
}

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

.page-faq .qa__a {
  padding: 18px 18px 22px;
  border-top: 1px solid var(--line);
}

.page-faq .qa__verdict {
  margin: 0 0 18px;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  font-size: 15px;
  line-height: 1.8;
  color: var(--white);
}

.page-faq .qa__verdict a,
.page-faq .steps__text a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__verdict a:focus-visible,
.page-faq .steps__text a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 步骤 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .steps__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-faq .steps__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 24px;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--cyan);
  opacity: .85;
  padding-top: 1px;
}

.page-faq .steps__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 插图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
}

/* ---------- 收尾：还没解决 ---------- */
.page-faq .faq-escape {
  scroll-margin-top: 96px;
  margin-top: var(--faq-gap);
  padding: clamp(26px, 4.5vw, 52px);
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--faq-ink-line);
  border-radius: var(--radius);
}

.page-faq .faq-escape__title {
  margin: 10px 0 12px;
  font-size: clamp(25px, 3.5vw, 40px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-faq .faq-escape .eyebrow {
  color: var(--faq-ink-faint);
}

.page-faq .faq-escape__lead {
  margin: 0 0 26px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-escape__lead a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-escape__lead a:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-faq .faq-escape__list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--faq-ink-line);
  border-radius: var(--radius);
  background: var(--faq-ink-line);
  overflow: hidden;
}

.page-faq .faq-escape__list li {
  display: grid;
  grid-template-columns: 66px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 16px;
  background: var(--paper);
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-escape__key {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ink);
}

.page-faq .faq-escape__contact {
  display: grid;
  gap: 14px;
  padding-top: 24px;
  border-top: 1px solid var(--faq-ink-line);
}

.page-faq .faq-escape__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-escape__row .faq-escape__key {
  min-width: 66px;
  color: var(--faq-ink-faint);
}

.page-faq .faq-escape__val {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--ink);
  word-break: break-all;
  overflow-wrap: anywhere;
}

.page-faq .faq-escape__copy {
  border: 1px solid var(--faq-ink-line);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.2;
  padding: 7px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-escape__copy:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.page-faq .faq-escape__copy:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-faq .faq-escape__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-ink-faint);
}

.page-faq .faq-escape__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-escape .btn--signal {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink);
}

.page-faq .faq-escape .btn--ghost {
  border-color: var(--faq-ink-line);
  color: var(--ink);
  background: transparent;
}

.page-faq .faq-escape .btn--ghost:hover {
  border-color: var(--ink);
}

.page-faq .faq-escape .btn:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- 中等屏幕 ---------- */
@media (min-width: 720px) {
  .page-faq .qa__q {
    padding: 18px 22px;
  }

  .page-faq .qa__a {
    padding: 20px 22px 24px;
  }

  .page-faq .steps {
    gap: 16px;
  }
}

/* ---------- 桌面：左侧刻度索引 + 右侧排障正文 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    border-left: 1px solid var(--line-strong);
  }

  .page-faq .faq-index__link {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
    width: 100%;
    padding: 11px 12px 11px 16px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    margin-left: -1px;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--cyan);
    background: var(--ink-2);
  }

  .page-faq .faq-group__head {
    margin-bottom: 26px;
  }

  .page-faq .faq-figure {
    margin-top: 28px;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__q,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-index__link,
  .page-faq .faq-escape__copy {
    transition: none;
  }
}