.page-faq {
  --faq-line: rgba(126, 150, 168, 0.32);
  --faq-line-strong: rgba(126, 150, 168, 0.55);
  --faq-soft: rgba(216, 237, 234, 0.5);
  background: var(--paper);
  color: var(--ocean);
  padding-bottom: clamp(56px, 8vw, 112px);
}

.page-faq .breadcrumb {
  padding-top: clamp(14px, 3vw, 26px);
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  padding: clamp(26px, 5vw, 56px) 0 clamp(22px, 3.5vw, 40px);
}

.page-faq .faq-hero-inner {
  max-width: 880px;
}

.page-faq .faq-hero h1 {
  margin: 18px 0 0;
  font-family: var(--ff-display);
  font-size: clamp(32px, 6.2vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 15em;
}

.page-faq .faq-hero .lede {
  margin-top: 20px;
  max-width: 44ch;
  font-family: var(--ff-serif);
  font-size: clamp(17px, 2.1vw, 21px);
  line-height: 1.62;
  color: var(--ocean);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-axis {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-faq .faq-axis-line {
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, var(--signal) 0%, var(--ridge) 38%, var(--mist) 100%);
}

.page-faq .faq-axis-dot {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: var(--r-pill);
  background: var(--signal);
  box-shadow: 0 0 0 5px var(--signal-soft);
}

.page-faq .faq-axis-label {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ridge);
}

/* ---------- Layout ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

/* ---------- Index ---------- */
.page-faq .faq-index {
  border-top: 1px solid var(--faq-line-strong);
  padding-top: 14px;
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ridge);
}

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

.page-faq .faq-index-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 15px;
  border-radius: var(--r-pill);
  background: var(--mist);
  color: var(--ocean);
  font-size: 14px;
  text-decoration: none;
  transition: background-color 0.22s var(--ease), color 0.22s var(--ease),
    border-color 0.22s var(--ease);
}

.page-faq .faq-index-list .mono {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ridge);
  transition: color 0.22s var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  background: var(--signal-soft);
  color: var(--ink);
}

.page-faq .faq-index-list a:hover .mono,
.page-faq .faq-index-list a:focus-visible .mono {
  color: var(--signal);
}

/* ---------- Groups ---------- */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-group {
  padding-top: clamp(30px, 5vw, 56px);
  scroll-margin-top: calc(var(--header-pad) + 20px);
}

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

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

.page-faq .faq-group-head {
  max-width: 44ch;
}

.page-faq .faq-group-head h2 {
  margin: 14px 0 0;
  font-family: var(--ff-display);
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-group-note {
  margin: 12px 0 0;
  font-family: var(--ff-serif);
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.6;
  color: var(--ocean);
}

.page-faq .faq-group-body {
  margin-top: clamp(20px, 3vw, 32px);
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

/* ---------- Q&A items ---------- */
.page-faq .faq-list {
  min-width: 0;
}

.page-faq .qa {
  position: relative;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-card);
  background: var(--paper);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  transition: box-shadow 0.24s var(--ease), border-color 0.24s var(--ease),
    transform 0.24s var(--ease);
}

.page-faq .qa + .qa {
  margin-top: 12px;
}

.page-faq .qa:hover {
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
}

.page-faq .qa[open] {
  border-color: rgba(255, 90, 43, 0.42);
}

.page-faq .qa summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(16px, 2.2vw, 22px) clamp(18px, 2.4vw, 26px);
  list-style: none;
  cursor: pointer;
  color: var(--ink);
  font-size: clamp(16px, 1.9vw, 18px);
  font-weight: 600;
  line-height: 1.52;
}

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

.page-faq .qa summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--signal);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.26s var(--ease);
}

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

.page-faq .qa summary::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-left: auto;
  margin-top: 8px;
  border-right: 2px solid var(--signal);
  border-bottom: 2px solid var(--signal);
  transform: rotate(45deg);
  transition: transform 0.26s var(--ease), margin-top 0.26s var(--ease);
}

.page-faq .qa[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 12px;
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -3px;
  border-radius: var(--r-card);
}

.page-faq .qa .qa-q {
  display: block;
}

.page-faq .qa-a {
  padding: 0 clamp(18px, 2.4vw, 26px) clamp(18px, 2.4vw, 24px);
}

.page-faq .qa-a p {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ocean);
}

.page-faq .qa-a p + p {
  margin-top: 10px;
}

.page-faq .qa-a a {
  color: var(--ocean);
  text-decoration: underline;
  text-decoration-color: var(--signal);
  text-underline-offset: 3px;
}

.page-faq .qa-a a:hover,
.page-faq .qa-a a:focus-visible {
  color: var(--ink);
}

.page-faq .qa-a ul {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-faq .qa-a li {
  position: relative;
  padding-left: 20px;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ocean);
}

.page-faq .qa-a li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 2px;
  border-radius: 2px;
  background: var(--signal);
}

.page-faq .qa-num {
  font-size: 1.04em;
  color: var(--ink);
  padding: 0 1px;
}

/* ---------- Figures ---------- */
.page-faq .faq-figure,
.page-faq .faq-band-figure {
  margin: 0;
}

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

.page-faq .faq-figure .figure-caption,
.page-faq .faq-band-figure .figure-caption {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

/* ---------- Closing ---------- */
.page-faq .faq-closing {
  margin-top: clamp(48px, 7vw, 96px);
  scroll-margin-top: calc(var(--header-pad) + 20px);
}

.page-faq .faq-closing-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-shell);
  background: linear-gradient(135deg, var(--ocean) 0%, var(--ink) 62%, var(--night) 100%);
  color: var(--paper);
  padding: clamp(28px, 5vw, 60px);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-closing-card::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 320px;
  height: 320px;
  border-radius: var(--r-pill);
  background: radial-gradient(circle, rgba(255, 90, 43, 0.34) 0%, rgba(255, 90, 43, 0) 70%);
  pointer-events: none;
}

.page-faq .faq-closing-card .coordinate {
  color: var(--signal-soft);
}

.page-faq .faq-closing-card h2 {
  position: relative;
  margin: 16px 0 0;
  font-family: var(--ff-display);
  font-size: clamp(24px, 3.8vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 18em;
}

.page-faq .faq-closing-text {
  position: relative;
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(216, 237, 234, 0.92);
}

.page-faq .faq-closing-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-faq .faq-closing-actions .btn--ghost {
  color: var(--paper);
  border-color: rgba(216, 237, 234, 0.5);
}

.page-faq .faq-closing-actions .btn--ghost:hover,
.page-faq .faq-closing-actions .btn--ghost:focus-visible {
  background: rgba(216, 237, 234, 0.12);
  color: var(--paper);
}

.page-faq .faq-contact {
  position: relative;
  margin: clamp(28px, 4vw, 40px) 0 0;
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid rgba(216, 237, 234, 0.22);
  display: grid;
  gap: 16px;
}

.page-faq .faq-contact-item dt {
  color: rgba(216, 237, 234, 0.72);
}

.page-faq .faq-contact-item dd {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

/* ---------- Tablet ---------- */
@media (min-width: 700px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- Desktop ---------- */
@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(184px, 232px) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-pad) + 12px);
    border-top: 1px solid var(--faq-line-strong);
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-faq .faq-index-list a {
    display: flex;
    width: 100%;
    padding: 11px 14px;
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    background: transparent;
    border-left: 2px solid var(--faq-line);
    font-size: 15px;
  }

  .page-faq .faq-index-list a:focus-visible {
    outline: 2px solid var(--signal);
    outline-offset: 2px;
  }

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

@media (min-width: 1100px) {
  .page-faq .faq-group-body--split {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.6fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa summary::before,
  .page-faq .qa summary::after,
  .page-faq .faq-index-list a {
    transition: none;
  }

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