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

.page-faq .faq-index,
.page-faq .faq-questions,
.page-faq .faq-prep,
.page-faq .faq-flow,
.page-faq .faq-human {
  scroll-margin-top: calc(var(--mast-h) + 16px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  background: var(--jade);
  color: var(--paper);
  padding: clamp(1.4rem, 3.6vw, 2.6rem) 0 clamp(2.2rem, 5vw, 3.6rem);
  overflow: hidden;
}

.page-faq .faq-hero .breadcrumb,
.page-faq .faq-hero .breadcrumb a {
  color: var(--sand-light);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.4rem);
  margin-top: clamp(1.2rem, 3vw, 2rem);
}

.page-faq .faq-hero h1 {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.95rem, 5.4vw, 3.5rem);
  line-height: 1.24;
  letter-spacing: 0.02em;
  color: var(--paper);
  max-width: 18ch;
}

.page-faq .faq-hero__lede {
  margin: 1.1rem 0 0;
  max-width: 46ch;
  font-size: clamp(0.98rem, 1.1vw, 1.06rem);
  line-height: 1.9;
  color: rgba(244, 239, 228, 0.86);
}

.page-faq .faq-hero__visual {
  margin-top: 0.2rem;
}

.page-faq .faq-hero__visual svg {
  display: block;
  width: 100%;
  max-width: 210px;
  height: auto;
}

.page-faq .faq-scale__rail {
  stroke: rgba(230, 211, 168, 0.2);
}

.page-faq .faq-scale__tick {
  stroke: rgba(200, 164, 93, 0.48);
}

.page-faq .faq-scale__tick--on {
  stroke: var(--sand);
}

.page-faq .faq-scale__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  fill: var(--sand-light);
}

.page-faq .faq-jump {
  list-style: none;
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--line-dark);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.7rem;
}

.page-faq .faq-jump a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.25rem 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--sand-light);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-jump a:hover {
  color: var(--paper);
  border-bottom-color: var(--sand);
}

.page-faq .faq-jump a:focus-visible {
  outline: 2px solid var(--sand-light);
  outline-offset: 3px;
}

.page-faq .faq-jump__no {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--sand);
}

/* ---------- 归口索引 ---------- */

.page-faq .faq-index {
  position: relative;
  overflow: hidden;
  padding: clamp(2.4rem, 6vw, 4.4rem) 0;
}

.page-faq .faq-index__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-faq .faq-index__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
  filter: grayscale(1) contrast(1.05);
}

.page-faq .faq-index > .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-index h2,
.page-faq .faq-questions h2,
.page-faq .faq-flow h2,
.page-faq .faq-prep h2,
.page-faq .faq-human h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  line-height: 1.38;
  letter-spacing: 0.02em;
  margin: 0;
}

.page-faq .ledger {
  list-style: none;
  margin: clamp(1.6rem, 3vw, 2.4rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .ledger__row {
  position: relative;
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 0.3rem 0.9rem;
  padding: 1.1rem 0.5rem 1.2rem;
  border-bottom: 1px solid var(--line-soft);
  transition: background-color 0.22s var(--ease);
}

.page-faq .ledger__row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--sand);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.24s var(--ease);
}

.page-faq .ledger__row:hover {
  background: rgba(200, 164, 93, 0.08);
}

.page-faq .ledger__row:hover::before,
.page-faq .ledger__row:focus-within::before {
  transform: scaleY(1);
}

.page-faq .ledger__no {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--sand);
}

.page-faq .ledger__name {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .ledger__case,
.page-faq .ledger__need,
.page-faq .ledger__sla {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(21, 22, 20, 0.82);
}

.page-faq .ledger__sla {
  color: var(--jade);
  font-size: 0.88rem;
}

.page-faq .ledger__key {
  display: inline-block;
  margin-right: 0.5rem;
  font-family: var(--font-cond);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--gravel);
}

/* ---------- 问答 ---------- */

.page-faq .faq-questions {
  padding: clamp(2.4rem, 6vw, 4.4rem) 0;
}

.page-faq .qa-group {
  margin-top: clamp(1.6rem, 3vw, 2.4rem);
}

.page-faq .qa-group__title {
  margin: 0 0 0.3rem;
  padding-left: 0.8rem;
  border-left: 3px solid var(--sand);
  font-family: var(--font-cond);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  line-height: 1.7;
  color: var(--jade);
}

.page-faq .qa {
  position: relative;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15rem;
  bottom: 0.15rem;
  width: 3px;
  background: var(--sand);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.24s var(--ease);
}

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

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr) 1.4rem;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.9rem 0.5rem 0.9rem 0.7rem;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.2s var(--ease);
}

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

.page-faq .qa__q:hover {
  background: rgba(14, 75, 74, 0.055);
}

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

.page-faq .qa__no {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--gravel);
}

.page-faq .qa__t {
  font-size: 0.99rem;
  font-weight: 600;
  line-height: 1.72;
  color: var(--ink);
}

.page-faq .qa__sign {
  position: relative;
  width: 1.4rem;
  height: 1.4rem;
  align-self: center;
  justify-self: end;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  background: var(--jade);
  transition: transform 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-faq .qa__sign::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .qa__sign::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
}

.page-faq .qa[open] .qa__sign::after {
  transform: translateX(-50%) scaleY(0);
}

.page-faq .qa[open] .qa__sign::before {
  background: var(--sand);
}

.page-faq .qa__a {
  padding: 0 0.7rem 1.2rem 1rem;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.88;
  color: rgba(21, 22, 20, 0.82);
}

/* ---------- 提交前准备 ---------- */

.page-faq .faq-prep {
  padding: clamp(2.4rem, 6vw, 4.4rem) 0;
}

.page-faq .faq-prep h2,
.page-faq .faq-human h2 {
  color: var(--paper);
  margin-top: 0.55rem;
}

.page-faq .faq-prep__grid {
  display: grid;
  gap: clamp(1.8rem, 4vw, 3rem);
}

.page-faq .checklist {
  list-style: none;
  margin: clamp(1.3rem, 3vw, 1.9rem) 0 0;
  padding: 0;
  max-width: 54ch;
}

.page-faq .checklist li {
  display: grid;
  grid-template-columns: 1rem minmax(0, 1fr);
  gap: 0.8rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line-dark-soft);
  font-size: 0.94rem;
  line-height: 1.74;
  color: rgba(244, 239, 228, 0.9);
}

.page-faq .checklist li::before {
  content: "";
  width: 0.7rem;
  height: 0.7rem;
  margin-top: 0.5rem;
  border: 1px solid var(--sand);
}

.page-faq .checklist b {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--sand-light);
}

.page-faq .faq-prep__note {
  margin: 1.3rem 0 0;
  max-width: 54ch;
  font-size: 0.88rem;
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.72);
}

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

.page-faq .faq-prep__figure .figure__frame {
  border: 1px solid var(--line-dark);
}

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

.page-faq .faq-prep__figure .figure__caption {
  color: rgba(244, 239, 228, 0.68);
}

/* ---------- 处理节奏 ---------- */

.page-faq .faq-flow {
  padding: clamp(2.4rem, 6vw, 4.4rem) 0;
}

.page-faq .flow {
  list-style: none;
  margin: clamp(1.8rem, 3.5vw, 2.6rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.page-faq .flow__step {
  position: relative;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--line);
}

.page-faq .flow__step::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--sand);
}

.page-faq .flow__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--sand);
}

.page-faq .flow__title {
  margin: 0.45rem 0 0.4rem;
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--jade);
}

.page-faq .flow__step p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.82;
  color: rgba(21, 22, 20, 0.8);
}

.page-faq .faq-flow__foot {
  margin: clamp(1.6rem, 3vw, 2.2rem) 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.9rem;
  line-height: 1.85;
  color: rgba(21, 22, 20, 0.72);
}

/* ---------- 人工介入 ---------- */

.page-faq .faq-human {
  padding: clamp(2.4rem, 6vw, 4.4rem) 0;
}

.page-faq .faq-human__grid {
  display: grid;
  gap: clamp(1.8rem, 4vw, 3rem);
}

.page-faq .faq-human__list {
  list-style: none;
  margin: 1.3rem 0 0;
  padding: 0;
}

.page-faq .faq-human__list li {
  position: relative;
  padding: 0.68rem 0 0.68rem 1.5rem;
  border-bottom: 1px solid var(--line-dark-soft);
  font-size: 0.94rem;
  line-height: 1.78;
  color: rgba(244, 239, 228, 0.88);
}

.page-faq .faq-human__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.2rem;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--cinnabar);
}

.page-faq .faq-human__hint {
  margin: 1.3rem 0 0;
  font-size: 0.88rem;
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.7);
}

.page-faq .faq-human__hint a {
  color: var(--sand-light);
  text-decoration: underline;
  text-decoration-color: rgba(200, 164, 93, 0.5);
  text-underline-offset: 3px;
}

.page-faq .faq-human__hint a:hover {
  text-decoration-color: var(--sand);
}

.page-faq .faq-human__channels {
  padding: clamp(1.2rem, 3vw, 1.7rem);
  border: 1px solid var(--line-dark);
  background: rgba(14, 75, 74, 0.36);
}

.page-faq .channel {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line-dark-soft);
}

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

.page-faq .channel:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .channel__key {
  display: block;
  margin-bottom: 0.3rem;
  font-family: var(--font-cond);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--sand);
}

.page-faq .channel__val {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .channel__val a {
  color: var(--sand-light);
  text-decoration: none;
  border-bottom: 1px solid var(--line-dark);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .channel__val a:hover {
  color: var(--paper);
  border-bottom-color: var(--sand);
}

.page-faq .channel__val a:focus-visible {
  outline: 2px solid var(--sand-light);
  outline-offset: 2px;
}

.page-faq .channel__note {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  line-height: 1.75;
  color: rgba(244, 239, 228, 0.66);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .qa__a {
    padding-left: 4.3rem;
    max-width: calc(var(--measure) + 4.3rem);
  }
}

@media (min-width: 760px) {
  .page-faq .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .flow__step {
    padding: 1.2rem 1.3rem 0;
  }

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

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-faq .faq-hero__visual svg {
    max-width: 230px;
    margin-left: auto;
  }

  .page-faq .faq-prep__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-human__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .ledger__row {
    grid-template-columns: 3.4rem 9rem minmax(0, 1.25fr) minmax(0, 1.1fr) 11.5rem;
    gap: 0 1.2rem;
    padding: 1.25rem 0.8rem;
    align-items: start;
  }

  .page-faq .ledger__case,
  .page-faq .ledger__need,
  .page-faq .ledger__sla {
    grid-column: auto;
  }

  .page-faq .ledger__sla {
    padding-left: 1.1rem;
    border-left: 1px solid var(--line-soft);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .ledger__row,
  .page-faq .ledger__row::before,
  .page-faq .qa::before,
  .page-faq .qa__q,
  .page-faq .qa__sign::before,
  .page-faq .qa__sign::after,
  .page-faq .faq-jump a {
    transition: none;
  }
}