.page-faq {
  --faq-on-dark: rgba(244, 242, 238, .72);
  --faq-body-size: 15.5px;
  background: var(--xc-paper);
  color: var(--xc-text);
}

.page-faq .faq-crumbs {
  padding: 18px 0 0;
}

.page-faq .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--xc-muted);
}

.page-faq .breadcrumbs li {
  display: flex;
  gap: 8px;
}

.page-faq .breadcrumbs li + li::before {
  content: "/";
  color: var(--xc-line);
}

.page-faq .breadcrumbs a {
  color: var(--xc-muted);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover {
  color: var(--xc-signal-deep);
}

.page-faq .breadcrumbs [aria-current="page"] {
  color: var(--xc-text);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(24px, 5vw, 46px) 0 clamp(36px, 7vw, 72px);
  border-bottom: 1px solid var(--xc-line);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(28px, 5vw, 44px);
  align-items: end;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
  }
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  max-width: 20ch;
  font-size: clamp(30px, 5.6vw, 58px);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--xc-ink);
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 48ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--xc-text);
}

.page-faq .faq-hero__plates {
  display: grid;
  gap: 1px;
  background: var(--xc-line);
  border: 1px solid var(--xc-line);
}

@media (min-width: 560px) {
  .page-faq .faq-hero__plates {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-version {
  padding: 20px 22px 22px;
  background: var(--xc-stand-deep);
  color: var(--xc-paper);
  border-left: 3px solid var(--xc-signal);
}

.page-faq .faq-version__os {
  display: block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--xc-lake-mist);
}

.page-faq .faq-version__num {
  display: block;
  margin-top: 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(44px, 12vw, 66px);
  line-height: .95;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
  color: var(--xc-paper);
}

.page-faq .faq-version__note {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-on-dark);
}

/* ---------- 症状入口 ---------- */

.page-faq .faq-triage {
  padding: clamp(40px, 8vw, 76px) 0 clamp(24px, 4vw, 40px);
}

.page-faq .faq-section-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(22px, 4vw, 34px);
}

@media (min-width: 860px) {
  .page-faq .faq-section-head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: end;
    gap: 10px 40px;
  }
}

.page-faq .faq-section-head__title {
  margin: 0;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--xc-ink);
}

.page-faq .faq-section-head__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--xc-muted);
}

.page-faq .faq-triage__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--xc-line);
  border: 1px solid var(--xc-line);
}

@media (min-width: 860px) {
  .page-faq .faq-triage__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-triage__list > li {
  display: flex;
}

.page-faq .faq-triage__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  padding: 26px 22px 22px;
  background: var(--xc-panel);
  color: inherit;
  text-decoration: none;
  border-top: 3px solid transparent;
  transition: border-color .25s var(--xc-ease), background-color .25s var(--xc-ease);
}

.page-faq .faq-triage__card:hover,
.page-faq .faq-triage__card:focus-visible {
  border-top-color: var(--xc-signal);
  background: #FFFDFB;
}

.page-faq .faq-triage__no {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .1em;
  font-variant-numeric: tabular-nums;
  color: var(--xc-signal);
}

.page-faq .faq-triage__name {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -.01em;
  color: var(--xc-ink);
}

.page-faq .faq-triage__cause {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--xc-muted);
}

.page-faq .faq-triage__go {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--xc-line);
  font-size: 13.5px;
  color: var(--xc-signal-deep);
}

/* ---------- 横幅 ---------- */

.page-faq .faq-banner {
  margin: 0;
  padding: 0 0 clamp(32px, 6vw, 56px);
}

/* ---------- 分类锚点 ---------- */

.page-faq .faq-index {
  background: var(--xc-panel);
  border-top: 1px solid var(--xc-line);
  border-bottom: 1px solid var(--xc-line);
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 16px 0;
}

.page-faq .faq-index__link {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--xc-line);
  font-size: 13.5px;
  letter-spacing: .03em;
  color: var(--xc-text);
  text-decoration: none;
  transition: border-color .2s var(--xc-ease), color .2s var(--xc-ease), background-color .2s var(--xc-ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--xc-signal);
  color: var(--xc-signal-deep);
  background: rgba(240, 90, 40, .07);
}

/* ---------- 分类区块 ---------- */

.page-faq .faq-group {
  padding: clamp(44px, 8vw, 84px) 0;
  border-bottom: 1px solid var(--xc-line);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(20px, 4vw, 34px);
}

@media (min-width: 900px) {
  .page-faq .faq-group__head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: end;
    gap: 12px 40px;
  }
}

.page-faq .faq-group__index {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: .2em;
  font-variant-numeric: tabular-nums;
  color: var(--xc-signal);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(25px, 4.4vw, 38px);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--xc-ink);
}

.page-faq .faq-group__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--xc-muted);
}

/* ---------- 手风琴 ---------- */

.page-faq .faq-list {
  border-top: 1px solid var(--xc-line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--xc-line);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-item__num {
  flex: none;
  width: 30px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .1em;
  font-variant-numeric: tabular-nums;
  color: var(--xc-muted);
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--xc-ink);
  transition: color .2s var(--xc-ease);
}

.page-faq .faq-item__summary:hover .faq-item__q,
.page-faq .faq-item__summary:focus-visible .faq-item__q {
  color: var(--xc-signal-deep);
}

.page-faq .faq-item__mark {
  position: relative;
  flex: none;
  width: 15px;
  height: 15px;
  transform: translateY(4px);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--xc-signal);
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 6px;
  width: 15px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 15px;
  transition: transform .22s var(--xc-ease);
}

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

.page-faq .faq-item[open] .faq-item__q {
  color: var(--xc-signal-deep);
}

.page-faq .faq-item__body {
  position: relative;
  padding: 4px 0 28px 16px;
}

.page-faq .faq-item__body::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 32px;
  width: 2px;
  background: var(--xc-signal);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .3s var(--xc-ease);
}

.page-faq .faq-item[open] .faq-item__body::before {
  transform: scaleY(1);
}

@media (min-width: 720px) {
  .page-faq .faq-item__body {
    padding-left: 44px;
  }
}

.page-faq .faq-item__lead {
  margin: 0 0 16px;
  max-width: 62ch;
  font-size: var(--faq-body-size);
  line-height: 1.85;
  color: var(--xc-text);
}

/* ---------- 步骤列表 ---------- */

.page-faq .step-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}

.page-faq .step-item {
  position: relative;
  padding: 0 0 18px 42px;
}

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

.page-faq .step-item::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: 0;
  width: 1px;
  background: var(--xc-line);
}

.page-faq .step-item:last-child::after {
  display: none;
}

.page-faq .step-item__num {
  position: absolute;
  left: 0;
  top: -1px;
  width: 28px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.4;
  font-variant-numeric: tabular-nums;
  color: var(--xc-signal);
}

.page-faq .step-item p {
  margin: 0;
  max-width: 62ch;
  font-size: var(--faq-body-size);
  line-height: 1.85;
  color: var(--xc-text);
}

/* ---------- 深色提示牌 ---------- */

.page-faq .faq-note {
  margin: 18px 0 0;
  max-width: 62ch;
  padding: 16px 18px;
  background: var(--xc-stand-deep);
  color: var(--xc-paper);
  border-left: 3px solid var(--xc-lime);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-faq .faq-note strong {
  color: var(--xc-lime);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ---------- 路径信息图 ---------- */

.page-faq .faq-diagram {
  margin: 0;
  padding: clamp(36px, 6vw, 64px) 0;
  background: var(--xc-panel);
}

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

.page-faq .faq-diagram figcaption {
  margin-top: 14px;
  max-width: 62ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--xc-muted);
}

/* ---------- 收束行动点 ---------- */

.page-faq .faq-cta {
  padding: clamp(48px, 9vw, 92px) 0;
  background: var(--xc-stand-deep);
  color: var(--xc-paper);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 28px;
}

@media (min-width: 880px) {
  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    align-items: center;
    gap: 40px;
  }
}

.page-faq .faq-cta__kicker {
  margin: 0;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--xc-lime);
}

.page-faq .faq-cta__title {
  margin: 12px 0 0;
  max-width: 22ch;
  font-size: clamp(25px, 4.6vw, 40px);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--xc-paper);
}

.page-faq .faq-cta__text p {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-on-dark);
}

.page-faq .faq-cta__action {
  display: grid;
  gap: 16px;
  justify-items: start;
}

.page-faq .faq-cta__contact {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--faq-on-dark);
  word-break: break-word;
}

/* ---------- 内联链接 ---------- */

.page-faq .link-line {
  color: var(--xc-signal-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .link-line:hover {
  color: var(--xc-signal);
}

/* ---------- 动效收敛 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}