.page-faq {
  --faq-radius: 0;
  background: var(--bg);
  color: var(--ink);
}

/* ---------- hero ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 2px solid var(--line);
  padding: clamp(22px, 4vw, 34px) 0 clamp(34px, 5vw, 56px);
  background:
    radial-gradient(120% 150% at 6% 0%, rgba(43, 231, 224, 0.16) 0%, rgba(6, 10, 18, 0) 58%),
    radial-gradient(95% 130% at 98% 8%, rgba(255, 154, 46, 0.14) 0%, rgba(6, 10, 18, 0) 62%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(143, 160, 188, 0.055) 0 1px,
    rgba(6, 10, 18, 0) 1px 4px
  );
}

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

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  max-width: 20ch;
  font-size: clamp(1.95rem, 5.4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 2px solid var(--line);
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-stat__num {
  font-size: clamp(1.35rem, 2.6vw, 1.75rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-stat__num--amber {
  color: var(--amber);
}

.page-faq .faq-stat__num--green {
  color: var(--green);
}

.page-faq .faq-stat__label {
  font-size: 0.8125rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ---------- layout ---------- */
.page-faq .qa-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding: clamp(26px, 4vw, 48px) 0 clamp(48px, 7vw, 88px);
}

/* ---------- index column ---------- */
.page-faq .qa-index {
  border: 2px solid var(--line);
  background: var(--panel);
  padding: 16px 14px 18px;
  box-shadow: var(--shadow-hard-sm);
}

.page-faq .qa-index__label {
  margin: 0;
  font-size: 0.6875rem;
  letter-spacing: 0.24em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-faq .qa-index__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .qa-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 10px 10px 11px;
  border-left: 3px solid var(--line);
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.4;
  text-decoration: none;
  transition: color var(--dur) ease, border-color var(--dur) ease, background var(--dur) ease;
}

.page-faq .qa-index__link:hover {
  color: var(--ink);
  border-left-color: var(--line-strong);
  background: var(--panel-2);
}

.page-faq .qa-index__link[aria-current="true"] {
  color: var(--cyan);
  border-left-color: var(--amber);
  background: var(--panel-2);
}

.page-faq .qa-index__num {
  flex: 0 0 auto;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  opacity: 0.85;
}

.page-faq .qa-side {
  display: grid;
  gap: 9px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 2px solid var(--line);
}

.page-faq .qa-side__link {
  display: block;
  padding: 11px 14px;
  border: 2px solid var(--line-strong);
  background: var(--panel-2);
  color: var(--ink);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  box-shadow: var(--shadow-hard-sm);
  transition: transform var(--dur-fast) ease, border-color var(--dur-fast) ease, color var(--dur-fast) ease;
}

.page-faq .qa-side__link:hover {
  transform: translate(-2px, -2px);
}

.page-faq .qa-side__link--cyan:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .qa-side__link--amber:hover {
  border-color: var(--amber);
  color: var(--amber);
}

/* ---------- .page-faq blocks ---------- */
.page-faq .qa-block {
  padding-top: 28px;
  margin-top: 40px;
  border-top: 2px solid var(--line);
  scroll-margin-top: 104px;
}

.page-faq .qa-block:first-child {
  margin-top: 0;
  padding-top: 6px;
  border-top: 0;
}

.page-faq .qa-block__num {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-faq .qa-block__title {
  margin: 10px 0 0;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.page-faq .qa-block__lede {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 0.9688rem;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- route rows ---------- */
.page-faq .route-row {
  margin-top: 22px;
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard-sm);
  transition: border-color var(--dur) ease;
}

.page-faq .route-row:hover {
  border-color: var(--line-strong);
}

.page-faq .route-row__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 13px 16px;
  border-bottom: 2px solid var(--line);
  background: var(--panel-2);
}

.page-faq .route-row__chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 2px solid var(--cyan);
  color: var(--cyan);
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1;
}

.page-faq .route-row__chip--amber {
  border-color: var(--amber);
  color: var(--amber);
}

.page-faq .route-row__chip--violet {
  border-color: var(--violet);
  color: var(--violet);
}

.page-faq .route-row__title {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-faq .route-row__hint {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- step chain ---------- */
.page-faq .step-chain {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .step-chain__item {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 15px 16px;
  transition: background var(--dur-fast) ease;
}

.page-faq .step-chain__item + .step-chain__item {
  border-top: 1px dashed var(--line);
}

.page-faq .step-chain__item:hover {
  background: rgba(43, 231, 224, 0.07);
}

.page-faq .step-chain__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  margin-top: 1px;
  border: 2px solid var(--amber);
  border-radius: 50%;
  color: var(--amber);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
}

.page-faq .step-chain__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
}

.page-faq .step-chain--stack {
  margin-top: 22px;
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard-sm);
}

/* ---------- figures ---------- */
.page-faq .faq-figure {
  margin: 26px 0 0;
}

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

.page-faq .faq-figure__cap {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--muted);
}

/* ---------- q&a items ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-faq .qa-item {
  border: 2px solid var(--line);
  background: var(--panel);
  padding: 16px 18px 18px;
  transition: border-color var(--dur) ease, box-shadow var(--dur) ease;
}

.page-faq .qa-item:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-hard-sm);
}

.page-faq .qa-item__q {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.58;
  color: var(--ink);
}

.page-faq .qa-item__mark {
  flex: 0 0 auto;
  padding: 1px 6px;
  border: 1px solid var(--line-strong);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--cyan);
}

.page-faq .qa-item__a {
  margin: 10px 0 0;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .qa-note {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-left: 4px solid var(--amber);
  background: var(--panel);
  font-size: 0.9063rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- rule rows ---------- */
.page-faq .rule-list {
  margin-top: 24px;
  border-top: 2px solid var(--line);
}

.page-faq .rule-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 2px;
  border-bottom: 1px dashed var(--line);
}

.page-faq .rule-row__key {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .rule-row__val {
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--ink);
}

/* ---------- node grid ---------- */
.page-faq .node-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 26px;
}

.page-faq .node-item {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 16px;
  border: 2px solid var(--line);
  background: var(--panel);
}

.page-faq .node-item__dot {
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border-radius: 50%;
  background: currentColor;
}

.page-faq .node-item--transfer {
  color: var(--amber);
}

.page-faq .node-item--debut {
  color: var(--cyan);
}

.page-faq .node-item--role {
  color: var(--violet);
}

.page-faq .node-item--milestone {
  color: var(--green);
}

.page-faq .node-item--return {
  color: var(--fault);
}

.page-faq .node-item--staff {
  color: var(--muted);
}

.page-faq .node-item__name {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .node-item__desc {
  margin: 6px 0 0;
  font-size: 0.875rem;
  line-height: 1.68;
  color: var(--muted);
}

/* ---------- fold ---------- */
.page-faq .faq-fold {
  margin-top: 20px;
  border: 2px solid var(--line);
  background: var(--panel-2);
  transition: border-color var(--dur) ease;
}

.page-faq .faq-fold[open] {
  border-color: var(--line-strong);
}

.page-faq .faq-fold__summary {
  cursor: pointer;
  padding: 14px 16px;
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  list-style: none;
}

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

.page-faq .faq-fold__summary::before {
  content: "+";
  display: inline-block;
  width: 18px;
  margin-right: 8px;
  font-family: var(--font-mono);
  color: var(--cyan);
}

.page-faq .faq-fold[open] .faq-fold__summary::before {
  content: "−";
  color: var(--amber);
}

.page-faq .faq-fold__body {
  margin: 0;
  padding: 0 16px 16px 42px;
  font-size: 0.9063rem;
  line-height: 1.76;
  color: var(--muted);
}

/* ---------- next links ---------- */
.page-faq .faq-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.page-faq .faq-next__card {
  display: block;
  padding: 18px 18px 20px;
  border: 2px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
  box-shadow: var(--shadow-hard-sm);
  transition: transform var(--dur-fast) ease, border-color var(--dur-fast) ease;
}

.page-faq .faq-next__card:hover {
  transform: translate(-3px, -3px);
  border-color: var(--cyan);
}

.page-faq .faq-next__card:nth-child(2):hover {
  border-color: var(--amber);
}

.page-faq .faq-next__card:nth-child(3):hover {
  border-color: var(--violet);
}

.page-faq .faq-next__idx {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .faq-next__title {
  display: block;
  margin-top: 8px;
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-faq .faq-next__desc {
  display: block;
  margin-top: 8px;
  font-size: 0.875rem;
  line-height: 1.68;
  color: var(--muted);
}

/* ---------- responsive ---------- */
@media (min-width: 700px) {
  .page-faq .rule-row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-faq .qa-item__a {
    padding-left: 34px;
  }

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

  .page-faq .faq-next {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-faq .qa-layout {
    grid-template-columns: 262px minmax(0, 1fr);
    gap: 54px;
  }

  .page-faq .qa-index {
    position: sticky;
    top: 96px;
    box-shadow: var(--shadow-hard);
  }

  .page-faq .node-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .step-chain:not(.step-chain--stack) {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .step-chain:not(.step-chain--stack) .step-chain__item + .step-chain__item {
    border-top: 0;
    border-left: 1px dashed var(--line);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-index__link,
  .page-faq .route-row,
  .page-faq .qa-item,
  .page-faq .qa-side__link,
  .page-faq .step-chain__item,
  .page-faq .faq-fold,
  .page-faq .faq-next__card {
    transition: none;
  }

  .page-faq .qa-side__link:hover,
  .page-faq .faq-next__card:hover {
    transform: none;
  }
}