.page-faq {
  --faq-gap: clamp(52px, 8vw, 88px);
  --faq-card-r: 14px;
  --faq-border: 2px solid var(--ink);
  background: var(--field);
  padding-bottom: clamp(48px, 7vw, 80px);
  overflow-x: clip;
}

.page-faq .faq-block {
  margin-top: var(--faq-gap);
}

.page-faq .faq-block--last {
  padding-bottom: clamp(24px, 5vw, 56px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  margin-top: clamp(20px, 4vw, 36px);
  display: grid;
  gap: clamp(24px, 5vw, 48px);
  align-items: end;
}

.page-faq .faq-kicker {
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grass);
  font-weight: 700;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-size: clamp(30px, 7.2vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--ink);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.8;
  color: #33415a;
}

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

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  border-top: var(--faq-border);
  padding-top: 16px;
}

.page-faq .faq-hero__meta li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-hero__meta b {
  font-family: var(--font-num);
  font-size: clamp(18px, 3.4vw, 24px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--grass);
  line-height: 1.1;
}

.page-faq .faq-hero__meta span {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__media {
  border: var(--faq-border);
  border-radius: var(--faq-card-r);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
  background: var(--ink);
  aspect-ratio: 3 / 2;
}

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

/* ---------- 三步 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: var(--faq-border);
}

.page-faq .faq-step {
  position: relative;
  padding: 28px 0 30px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(62px, 17vw, 118px);
  line-height: 0.8;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 2px var(--grass-lite);
  opacity: 0.5;
  margin-bottom: -0.18em;
  letter-spacing: -0.04em;
}

.page-faq .faq-step__title {
  position: relative;
  margin: 0 0 10px;
  font-size: clamp(19px, 3.6vw, 24px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-step__body {
  position: relative;
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: #33415a;
}

.page-faq .faq-step__where {
  position: relative;
  margin: 12px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--yellow);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 问答 ---------- */
.page-faq .faq-qa {
  display: grid;
  gap: 28px;
}

.page-faq .faq-rail__caption {
  display: none;
}

.page-faq .faq-rail .index-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-faq .faq-rail .index-rail__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border: var(--faq-border);
  border-radius: var(--r-pill);
  background: var(--white);
  white-space: nowrap;
}

.page-faq .faq-rail .index-rail__item a {
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}

.page-faq .faq-rail .index-rail__num {
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}

.page-faq .faq-rail .index-rail__item.is-current {
  background: var(--yellow);
  border-color: var(--ink);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-rail .index-rail__item.is-current .index-rail__num {
  color: var(--ink);
}

.page-faq .faq-rail__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 22em;
}

.page-faq .faq-groups {
  display: grid;
  gap: 32px;
}

.page-faq .faq-group__title {
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--grass);
  padding-bottom: 10px;
  border-bottom: var(--faq-border);
}

.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  border: var(--faq-border);
  border-radius: var(--faq-card-r);
  background: var(--white);
  box-shadow: var(--shadow-soft);
  transition: box-shadow 220ms ease-out, transform 220ms ease-out;
}

.page-faq .faq-item > summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 18px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border-radius: var(--faq-card-r);
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 22px;
  line-height: 1;
  font-weight: 700;
  color: var(--grass);
  flex: 0 0 auto;
}

.page-faq .faq-item[open] > summary::after {
  content: "–";
  color: var(--red);
}

.page-faq .faq-item__q {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.55;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-item[open] {
  box-shadow: var(--shadow-hard);
  transform: translate(-2px, -2px);
}

.page-faq .faq-item[open] > summary {
  background: rgba(255, 196, 0, 0.22);
  border-bottom: var(--faq-border);
  border-radius: var(--faq-card-r) var(--faq-card-r) 0 0;
}

.page-faq .faq-item__a {
  padding: 4px 18px 18px;
}

.page-faq .faq-item__a p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: #33415a;
  max-width: 40em;
}

/* ---------- 纠错 ---------- */
.page-faq .faq-fix {
  background: var(--ink);
  border-radius: var(--faq-card-r);
  border: var(--faq-border);
  box-shadow: var(--shadow-hard);
  padding: clamp(22px, 4.5vw, 44px);
  color: var(--white);
}

.page-faq .section-head--inverse {
  border-bottom-color: var(--ink-2);
}

.page-faq .section-head--inverse .section-head__title {
  color: var(--white);
}

.page-faq .section-head--inverse .section-head__note {
  color: #a9b6c9;
}

.page-faq .faq-fix__grid {
  display: grid;
  gap: 30px;
  margin-top: 26px;
}

.page-faq .faq-fix__subtitle {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 800;
  color: var(--yellow);
  letter-spacing: 0.02em;
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: fix;
}

.page-faq .faq-checklist__item {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 12px 14px;
  background: var(--ink-2);
  border-left: 4px solid var(--yellow);
  border-radius: 6px;
  font-size: 14.5px;
  line-height: 1.65;
}

.page-faq .faq-checklist__item::before {
  counter-increment: fix;
  content: counter(fix, decimal-leading-zero);
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
  color: var(--yellow);
  flex: 0 0 auto;
}

.page-faq .faq-fix__hint {
  margin: 16px 0 20px;
  font-size: 13.5px;
  line-height: 1.75;
  color: #a9b6c9;
}

.page-faq .faq-fix__flow-wrap {
  margin: 0;
}

.page-faq .faq-flow {
  display: block;
  width: 100%;
  height: auto;
  color: var(--ink-2);
}

.page-faq .faq-flow__n {
  font-family: var(--font-num);
  font-size: 22px;
  font-weight: 700;
  fill: var(--ink);
}

.page-faq .faq-flow__n--light {
  fill: var(--white);
}

.page-faq .faq-flow__t {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  fill: var(--white);
}

.page-faq .faq-fix__caption {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.8;
  color: #a9b6c9;
  max-width: 42em;
}

.page-faq .faq-fix__figure {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 30px;
  border-radius: 10px;
  border: 2px solid var(--ink-2);
  object-fit: cover;
  aspect-ratio: 2 / 1;
}

/* ---------- 反馈渠道 ---------- */
.page-faq .faq-channels {
  display: grid;
  gap: 18px;
}

.page-faq .faq-channel {
  border: var(--faq-border);
  border-radius: var(--faq-card-r);
  padding: 22px 20px;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
}

.page-faq .faq-channel--grass {
  background: var(--grass);
  color: var(--white);
}

.page-faq .faq-channel--ink {
  background: var(--ink);
  color: var(--white);
}

.page-faq .faq-channel--yellow {
  background: var(--yellow);
  color: var(--ink);
}

.page-faq .faq-channel__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-faq .faq-channel__addr {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  word-break: break-all;
  letter-spacing: 0.01em;
}

.page-faq .faq-channel__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  opacity: 0.95;
}

.page-faq .faq-channel__tag {
  margin: 18px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.28);
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

.page-faq .faq-channel--yellow .faq-channel__tag {
  border-top-color: rgba(14, 27, 51, 0.24);
}

.page-faq .faq-channels__foot {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 46em;
}

/* ---------- 控件说明 ---------- */
.page-faq .faq-controls {
  display: grid;
  gap: 0;
  border-top: var(--faq-border);
}

.page-faq .faq-control {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 8px;
}

.page-faq .faq-control__name {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-control__name::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--grass);
  flex: 0 0 auto;
  transform: rotate(45deg);
}

.page-faq .faq-control__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: #33415a;
  max-width: 44em;
}

/* ---------- 常见现象 ---------- */
.page-faq .faq-symptoms {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: var(--faq-border);
}

.page-faq .faq-symptoms dt {
  padding: 20px 0 8px;
  font-size: 15.5px;
  font-weight: 800;
  color: var(--ink);
}

.page-faq .faq-symptoms dt::before {
  content: "· ";
  color: var(--red);
}

.page-faq .faq-symptoms dd {
  margin: 0;
  padding: 0 0 20px;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.85;
  color: #33415a;
  max-width: 46em;
}

.page-faq .faq-outro {
  margin: 26px 0 0;
  padding: 18px 20px;
  background: var(--white);
  border: var(--faq-border);
  border-left: 6px solid var(--yellow);
  border-radius: 8px;
  font-size: 14.5px;
  line-height: 1.8;
  color: #33415a;
}

.page-faq .faq-outro a {
  color: var(--grass);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-channels {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-faq .faq-control {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
    padding: 24px 0;
  }

  .page-faq .faq-control__name {
    font-size: 15px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-faq .faq-hero__media {
    aspect-ratio: 4 / 5;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, 1fr);
    border-bottom: var(--faq-border);
  }

  .page-faq .faq-step {
    border-bottom: none;
    border-right: 1px solid var(--line);
    padding: 32px 26px 36px 0;
  }

  .page-faq .faq-step + .faq-step {
    padding-left: 26px;
  }

  .page-faq .faq-step:last-child {
    border-right: none;
    padding-right: 0;
  }

  .page-faq .faq-qa {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 118px;
  }

  .page-faq .faq-rail .index-rail {
    flex-direction: column;
    overflow: visible;
    gap: 10px;
    padding-bottom: 0;
  }

  .page-faq .faq-rail .index-rail__item {
    align-self: stretch;
    border-radius: 10px;
    justify-content: flex-start;
    padding: 10px 14px;
  }

  .page-faq .faq-groups {
    gap: 42px;
  }

  .page-faq .faq-fix__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero h1 {
    max-width: 15em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item[open] {
    transition: none;
    transform: none;
  }
}