.page-faq {
  --faq-rail-w: 200px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-faq .faq-kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--accent);
}

/* ---------- hero ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 20px 0 44px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 42, 71, .05), transparent 62%), var(--paper);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--gold), var(--accent));
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(30px, 6.2vw, 50px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -.02em;
  max-width: 20em;
}

.page-faq .faq-hero-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  max-width: 34em;
  color: rgba(7, 23, 38, .82);
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  max-width: 40em;
}

.page-faq .faq-hero-meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
}

.page-faq .faq-meta-num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
}

/* ---------- triage ---------- */
.page-faq .faq-triage {
  padding: 44px 0 8px;
}

.page-faq .faq-triage-head {
  margin-bottom: 22px;
}

.page-faq .faq-h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 4.4vw, 30px);
  line-height: 1.26;
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-faq .faq-sub {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 34em;
}

.page-faq .faq-symptom-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-symptom {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 16px 16px 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--line-strong);
  color: var(--ink);
  text-decoration: none;
  transition: transform var(--ease), border-color var(--ease), background var(--ease);
}

.page-faq .faq-symptom:hover,
.page-faq .faq-symptom:focus-visible {
  border-color: var(--accent);
  border-top-color: var(--accent);
  transform: translate(2px, -2px);
  outline: none;
}

.page-faq .faq-symptom-no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--accent);
}

.page-faq .faq-symptom-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
}

.page-faq .faq-symptom-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-symptom-arrow {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--accent);
}

/* ---------- .page-faq layout ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 30px;
  padding-top: 42px;
  padding-bottom: 44px;
}

.page-faq .faq-rail {
  border-left: 2px solid var(--line);
  padding-left: 14px;
  min-width: 0;
}

.page-faq .faq-rail-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}

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

.page-faq .faq-rail-list a {
  display: block;
  white-space: nowrap;
  padding: 5px 9px;
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  border-color: var(--line-strong);
  outline: none;
}

.page-faq .faq-rail-list a[aria-current="true"] {
  color: var(--accent);
  border-color: var(--accent);
}

.page-faq .faq-paths {
  min-width: 0;
}

.page-faq .faq-path {
  padding: 32px 0 12px;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--bar-h) + 20px);
  transition: box-shadow var(--ease), padding-left var(--ease);
}

.page-faq .faq-path:first-child {
  border-top: none;
  padding-top: 0;
}

.page-faq .faq-path:target {
  box-shadow: inset 3px 0 0 var(--accent);
  padding-left: 16px;
}

.page-faq .faq-path-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}

.page-faq .faq-path-no {
  flex: 0 0 auto;
  margin-top: 4px;
  padding: 3px 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--card);
  background: var(--ridge);
}

.page-faq .faq-path-head > div {
  min-width: 0;
}

/* ---------- figures ---------- */
.page-faq .faq-figure {
  margin: 0 0 22px;
  border: 1px solid var(--line);
  background: var(--ridge);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  background: var(--card);
  border-top: 1px solid var(--line);
}

/* ---------- step nodes ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 10px;
}

.page-faq .faq-node {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px dashed var(--line-strong);
  transition: border-color var(--ease);
}

.page-faq .faq-node[open] {
  border-left: 3px solid var(--accent);
}

.page-faq .faq-node summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 14px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-node-no {
  flex: 0 0 auto;
  margin-top: 2px;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  border: 1px solid currentColor;
}

.page-faq .faq-node-main {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-node-title {
  display: block;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-node-gist {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-node-mark {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 4px;
  border: 1px solid var(--line-strong);
}

.page-faq .faq-node-mark::before,
.page-faq .faq-node-mark::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transition: transform var(--ease);
}

.page-faq .faq-node-mark::before {
  left: 2px;
  right: 2px;
  top: 50%;
  height: 1px;
  margin-top: -.5px;
}

.page-faq .faq-node-mark::after {
  top: 2px;
  bottom: 2px;
  left: 50%;
  width: 1px;
  margin-left: -.5px;
}

.page-faq .faq-node[open] .faq-node-mark {
  border-color: var(--accent);
}

.page-faq .faq-node[open] .faq-node-mark::before,
.page-faq .faq-node[open] .faq-node-mark::after {
  background: var(--accent);
}

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

.page-faq .faq-node-detail {
  padding: 14px 14px 16px;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-node-detail p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  max-width: 34em;
}

.page-faq .faq-node-detail p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  background: rgba(47, 138, 114, .07);
  border-left: 3px solid var(--flag-green);
}

.page-faq .faq-check::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--flag-green);
}

.page-faq .faq-check--warn {
  background: rgba(214, 164, 25, .1);
  border-left-color: var(--flag-yellow);
}

.page-faq .faq-check--warn::before {
  background: var(--flag-yellow);
}

.page-faq .faq-copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin: 18px 0 0;
}

.page-faq .faq-copy-hint {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- ordered legacy path ---------- */
.page-faq .faq-order {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-order-item {
  padding: 16px 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--ridge);
}

.page-faq .faq-order-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
}

.page-faq .faq-order-no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--accent);
}

.page-faq .faq-order-head h3 {
  margin: 0;
  font-size: 16px;
  line-height: 1.45;
  font-weight: 700;
}

.page-faq .faq-order-item p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  max-width: 34em;
}

.page-faq .faq-order-item p:last-child {
  margin-bottom: 0;
}

/* ---------- alternate routes ---------- */
.page-faq .faq-route-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-route {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 14px;
  background: var(--card);
  border: 1px solid var(--line);
}

.page-faq .faq-route-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-faq .faq-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.page-faq .faq-dot--ok {
  background: var(--flag-green);
}

.page-faq .faq-dot--alt {
  background: var(--flag-blue);
}

.page-faq .faq-dot--check {
  background: var(--flag-yellow);
}

.page-faq .faq-route h3 {
  margin: 0;
  font-size: 16px;
  line-height: 1.45;
  font-weight: 700;
}

.page-faq .faq-route p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-route .faq-route-when {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-route-when strong {
  color: var(--ink);
}

/* ---------- data Q&A ---------- */
.page-faq .faq-qa {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-qa-item {
  padding: 16px 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 2px solid var(--ridge);
}

.page-faq .faq-qa-item dt {
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-qa-item dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(7, 23, 38, .88);
}

/* ---------- feedback band ---------- */
.page-faq .faq-feedback {
  position: relative;
  padding: 40px 0 20px;
  background: var(--ridge);
  color: var(--card);
  overflow: hidden;
}

.page-faq .faq-feedback::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent) 0 32%, var(--gold) 32% 48%, rgba(255, 255, 255, .28) 48% 100%);
}

.page-faq .faq-feedback-inner {
  display: grid;
  gap: 26px;
  align-items: start;
}

.page-faq .faq-feedback .faq-kicker {
  color: rgba(255, 255, 255, .7);
}

.page-faq .faq-feedback .faq-h2 {
  color: var(--card);
  max-width: 18em;
}

.page-faq .faq-feedback .faq-sub {
  color: rgba(255, 255, 255, .74);
  margin-bottom: 20px;
}

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

.page-faq .faq-need-list li {
  display: flex;
  gap: 10px;
  padding: 11px 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .86);
  border-bottom: 1px solid var(--line-inverse);
}

.page-faq .faq-need-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  margin-top: 8px;
  background: var(--gold);
}

.page-faq .faq-feedback-note {
  margin: 24px auto 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-inverse);
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .6);
}

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

@media (min-width: 820px) {
  .page-faq .faq-route-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-qa {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-feedback-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 40px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 28px 0 54px;
  }

  .page-faq .faq-hero::before {
    width: 42%;
    height: 100%;
    background: var(--ridge);
    clip-path: polygon(18% 0, 100% 0, 100% 100%, 0 100%);
  }

  .page-faq .faq-hero::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 34%;
    height: 5px;
    background: linear-gradient(90deg, var(--gold), var(--accent));
  }

  .page-faq .faq-hero-inner {
    padding-right: 34%;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 56px;
    padding-top: 52px;
    padding-bottom: 56px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-path {
    padding: 40px 0 16px;
  }

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

@media (min-width: 1024px) {
  .page-faq .faq-symptom-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-symptom,
  .page-faq .faq-node,
  .page-faq .faq-path {
    transition: none;
  }

  .page-faq .faq-symptom:hover,
  .page-faq .faq-symptom:focus-visible {
    transform: none;
  }
}
<<<END>>>