.page-faq {
  background: var(--night);
  color: var(--white);
  overflow-x: clip;
}

/* ---------- 面包屑与首屏 ---------- */

.page-faq .breadcrumb {
  padding-top: clamp(24px, 5vw, 48px);
}

.page-faq .breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-faq .breadcrumb__link[aria-current="page"] {
  color: var(--white);
}

.page-faq .faq-hero {
  padding-block: clamp(28px, 5vw, 56px) clamp(40px, 7vw, 88px);
}

.page-faq .faq-hero .display-title {
  margin: 18px 0 0;
  max-width: 17ch;
}

.page-faq .faq-hero .lede {
  margin-top: clamp(20px, 3vw, 32px);
  color: var(--muted);
  max-width: 62ch;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(28px, 5vw, 72px);
  margin: clamp(32px, 5vw, 60px) 0 0;
  padding: clamp(22px, 3vw, 32px) 0 0;
  border-top: var(--hairline);
  list-style: none;
}

.page-faq .faq-hero__stats .stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-hero__stats .stat__value {
  font-family: var(--font-num);
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--white);
}

.page-faq .faq-hero__stats .stat__label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ---------- 三步恢复画布 ---------- */

.page-faq .faq-recovery {
  padding-block: 0 clamp(48px, 8vw, 104px);
}

.page-faq .faq-steps {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--panel);
  border-left: 2px solid var(--accent);
  padding: clamp(30px, 5vw, 64px) clamp(20px, 4vw, 56px);
}

.page-faq .faq-steps__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.16;
  filter: grayscale(0.35) contrast(1.05);
}

.page-faq .faq-steps__inner {
  position: relative;
}

.page-faq .faq-steps__inner .section-title {
  margin: 14px 0 0;
  max-width: 22ch;
}

.page-faq .faq-steps__list {
  display: grid;
  gap: 0;
  margin: clamp(28px, 4vw, 52px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  padding: 22px 0;
  border-top: 1px solid var(--slate);
}

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

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(44px, 9vw, 84px);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--accent);
}

.page-faq .faq-step__title {
  margin: 14px 0 0;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-step__do,
.page-faq .faq-step__expect {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 46ch;
}

.page-faq .faq-step__expect span {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  border: 1px solid rgba(47, 191, 155, 0.55);
  color: var(--jade);
  font-size: 12px;
  letter-spacing: 0.1em;
  vertical-align: 1px;
}

/* ---------- 问答主体：左右分置 ---------- */

.page-faq .faq-answers {
  padding-block: clamp(40px, 6vw, 80px) clamp(48px, 8vw, 104px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(36px, 6vw, 72px);
}

.page-faq .faq-index__art {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.55;
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-faq .faq-index__title {
  margin: 0;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: var(--hairline);
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 14px 0 14px 12px;
  border-bottom: var(--hairline);
  border-left: 2px solid transparent;
  color: var(--cold);
  text-decoration: none;
  font-size: 15px;
  transition: border-color 200ms var(--ease), color 200ms var(--ease),
    background-color 200ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-left-color: var(--accent);
  background: rgba(255, 90, 31, 0.06);
  color: var(--white);
}

.page-faq .faq-index__num {
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  min-width: 2ch;
  color: var(--white);
  transition: color 200ms var(--ease);
}

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

.page-faq .faq-index__label {
  letter-spacing: 0.02em;
}

/* ---------- 分类与折叠问答 ---------- */

.page-faq .faq-cat {
  scroll-margin-top: 96px;
}

.page-faq .faq-cat + .faq-cat {
  margin-top: clamp(36px, 5vw, 64px);
  padding-top: clamp(36px, 5vw, 64px);
  border-top: var(--hairline);
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
}

.page-faq .faq-cat__title {
  margin: 0;
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-cat__count {
  font-family: var(--font-num);
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--accent-soft);
  flex: none;
}

.page-faq .faq-cat__count small {
  margin-left: 4px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .faq-cat__list {
  margin-top: clamp(18px, 3vw, 28px);
  border-top: var(--hairline);
}

.page-faq .faq-item {
  border-bottom: var(--hairline);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--cold);
  transition: color 200ms var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-num);
  font-size: 22px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--accent);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
}

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--white);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.page-faq .faq-item__a {
  padding: 0 0 22px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 转人工 ---------- */

.page-faq .faq-escalate-section {
  padding-block: 0 clamp(56px, 9vw, 120px);
}

.page-faq .faq-escalate {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  padding: clamp(28px, 5vw, 56px) clamp(20px, 4vw, 56px);
  background: var(--panel);
  border-left: 2px solid var(--jade);
}

.page-faq .faq-escalate .section-title {
  margin: 14px 0 0;
  max-width: 24ch;
}

.page-faq .faq-escalate__lede {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-escalate .btn {
  display: inline-block;
  margin-top: 26px;
  text-decoration: none;
}

.page-faq .faq-escalate__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--hairline);
  align-self: start;
}

.page-faq .faq-escalate__list li {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: var(--hairline);
}

.page-faq .faq-escalate__k {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--accent-soft);
}

.page-faq .faq-escalate__v {
  font-size: 15px;
  line-height: 1.7;
  color: var(--cold);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-step {
    padding: 0 clamp(18px, 2.6vw, 34px);
    border-top: 0;
    border-left: 1px solid var(--slate);
  }

  .page-faq .faq-step:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-faq .faq-step:last-child {
    padding-right: 0;
  }

  .page-faq .faq-escalate {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-faq .faq-escalate__list {
    border-top: 0;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(240px, 296px) minmax(0, 1fr);
    align-items: start;
  }

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

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