.page-faq {
  --faq-hair: rgba(46, 74, 95, 0.8);
  --faq-panel: rgba(11, 36, 56, 0.82);
  --faq-ring: rgba(217, 164, 65, 0.4);
  position: relative;
  background: var(--ink);
  color: var(--foam);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.1rem, 3vw, 2rem) 0 clamp(2.4rem, 6vw, 4.5rem);
  border-bottom: var(--line);
  background:
    radial-gradient(circle at 84% 4%, rgba(255, 200, 87, 0.16), transparent 42%),
    linear-gradient(158deg, var(--ink-deep) 0%, var(--ink) 62%, var(--harbor) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -120px;
  width: 320px;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--faq-ring);
  box-shadow: inset 0 0 0 18px rgba(6, 24, 38, 0.55), inset 0 0 70px rgba(217, 164, 65, 0.14);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .faq-hero__title {
  margin: 0 0 clamp(0.9rem, 2vw, 1.4rem);
  max-width: 20ch;
  line-height: 1.14;
}

.page-faq .faq-hero__lede {
  max-width: 52ch;
  margin: 0;
  color: var(--foam-dim);
}

.page-faq .faq-hero__aside {
  align-self: end;
}

.page-faq .faq-hero__aside p {
  margin: 0 0 0.6rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--foam-dim);
}

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

.page-faq .faq-hero__aside .mono-note {
  color: var(--gold);
}

.page-faq .faq-dock {
  padding: clamp(2.2rem, 5vw, 3.8rem) 0;
}

.page-faq .faq-dock__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.4rem 1.5rem;
  margin-bottom: clamp(1.1rem, 2.6vw, 1.8rem);
  padding-bottom: 0.7rem;
  border-bottom: 2px solid var(--steel);
}

.page-faq .faq-dock__head .section-title {
  margin: 0;
}

.page-faq .faq-dock__portholes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.7rem, 2vw, 1.15rem);
}

.page-faq .porthole {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: clamp(1rem, 2.4vw, 1.6rem) 0.7rem;
  text-align: center;
  text-decoration: none;
  color: var(--foam);
  background: linear-gradient(180deg, rgba(11, 36, 56, 0.9), rgba(6, 24, 38, 0.96));
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-card);
  transition: transform 0.25s var(--ease-out), border-color 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
}

.page-faq .porthole:hover,
.page-faq .porthole:focus-visible {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: var(--shadow-hard);
}

.page-faq .porthole__ring {
  display: grid;
  place-items: center;
  width: clamp(62px, 8.5vw, 84px);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 2px solid var(--faq-ring);
  background: radial-gradient(circle at 32% 26%, rgba(255, 200, 87, 0.26), transparent 62%), var(--ink);
  box-shadow: inset 0 0 0 5px rgba(6, 24, 38, 0.9);
  color: var(--gold);
  transition: box-shadow 0.25s var(--ease-out);
}

.page-faq .porthole:hover .porthole__ring,
.page-faq .porthole:focus-visible .porthole__ring {
  box-shadow: inset 0 0 0 5px rgba(6, 24, 38, 0.9), 0 0 22px rgba(255, 200, 87, 0.35);
}

.page-faq .porthole:nth-child(1) .porthole__ring {
  color: var(--celadon);
  border-color: rgba(127, 183, 163, 0.5);
}

.page-faq .porthole:nth-child(3) .porthole__ring {
  color: var(--coral);
  border-color: rgba(242, 107, 74, 0.45);
}

.page-faq .porthole:nth-child(4) .porthole__ring {
  color: var(--amber);
  border-color: rgba(255, 200, 87, 0.45);
}

.page-faq .porthole__ring svg {
  width: 44%;
  height: 44%;
}

.page-faq .porthole__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  line-height: 1.35;
}

.page-faq .porthole__desc {
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-dock__figure {
  margin: clamp(1.2rem, 3vw, 2rem) 0 0;
}

.page-faq .faq-dock__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 340px;
  object-fit: cover;
  border-radius: var(--radius-card);
}

.page-faq .faq-dock__figure .frame__caption {
  margin-top: 0.6rem;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-board {
  padding: clamp(2.4rem, 6vw, 4.4rem) 0;
  border-top: var(--line);
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
}

.page-faq .faq-board__head {
  display: grid;
  gap: 0.7rem;
  max-width: 62ch;
  margin-bottom: clamp(1.2rem, 3vw, 1.8rem);
}

.page-faq .faq-board__head .section-title {
  margin: 0;
}

.page-faq .faq-board__jump {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-board__jump a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 164, 65, 0.4);
}

.page-faq .faq-board__jump a:hover,
.page-faq .faq-board__jump a:focus-visible {
  border-bottom-color: var(--gold);
}

.page-faq .faq-board__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.2rem, 3vw, 2.5rem);
}

.page-faq .faq-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.page-faq .faq-filters__label {
  width: 100%;
  margin: 0 0 0.15rem;
  color: var(--mist);
}

.page-faq .pill {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  padding: 0.45rem 0.9rem;
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--foam-dim);
  background: rgba(6, 24, 38, 0.6);
  border: 1px solid var(--steel);
  border-radius: var(--radius-pill);
  cursor: pointer;
  user-select: none;
  transition: background 0.2s var(--ease-out), color 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
}

.page-faq .pill:hover {
  border-color: var(--gold);
  color: var(--foam);
}

.page-faq .faq-filter {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
  opacity: 0;
}

.page-faq .pill__count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mist);
}

.page-faq .pill:has(.faq-filter:checked) {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-deep);
  font-weight: 700;
}

.page-faq .pill:has(.faq-filter:checked) .pill__count {
  color: rgba(6, 24, 38, 0.7);
}

.page-faq .pill:has(.faq-filter:focus-visible) {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-faq .faq-board:has(#faq-f-install:checked) .faq-group:not(.faq-group--install),
.page-faq .faq-board:has(#faq-f-gift:checked) .faq-group:not(.faq-group--gift),
.page-faq .faq-board:has(#faq-f-board:checked) .faq-group:not(.faq-group--board),
.page-faq .faq-board:has(#faq-f-service:checked) .faq-group:not(.faq-group--service) {
  display: none;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(1.6rem, 4vw, 2.6rem);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.8rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--steel);
}

.page-faq .faq-group__idx {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step-2);
  line-height: 1.3;
  color: var(--foam);
}

.page-faq .faq-group__head .tag {
  margin-left: auto;
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .qa[open] {
  background: rgba(11, 36, 56, 0.42);
}

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 0.65rem;
  padding: 1.05rem 0.2rem;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__summary::marker {
  content: "";
}

.page-faq .qa__no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--celadon);
  padding-top: 0.45em;
}

.page-faq .qa__q {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  line-height: 1.55;
  color: var(--foam);
  transition: color 0.2s var(--ease-out);
}

.page-faq .qa__summary:hover .qa__q,
.page-faq .qa__summary:focus-visible .qa__q {
  color: var(--amber);
}

.page-faq .qa__chev {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 0.4em;
  border: 1px solid var(--steel);
  border-radius: 50%;
}

.page-faq .qa__chev::before,
.page-faq .qa__chev::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 1.5px;
  background: var(--gold);
  transform: translate(-50%, -50%);
  transition: transform 0.22s var(--ease-out), opacity 0.22s var(--ease-out);
}

.page-faq .qa__chev::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .qa[open] .qa__chev::after {
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
}

.page-faq .qa__body {
  max-width: 66ch;
  padding: 0 0.2rem 1.3rem;
  font-size: var(--step-0);
  line-height: 1.85;
  color: var(--foam-dim);
}

.page-faq .qa__body p {
  margin: 0 0 0.7rem;
}

.page-faq .qa__list {
  margin: 0 0 0.7rem;
  padding-left: 1.1rem;
}

.page-faq .qa__list li {
  margin-bottom: 0.3rem;
}

.page-faq .qa__list li::marker {
  color: var(--gold);
}

.page-faq .qa__hint {
  margin: 0;
  padding: 0.65rem 0.9rem;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--foam-dim);
  background: rgba(242, 107, 74, 0.09);
  border-left: 3px solid var(--coral);
  border-radius: 0 var(--radius-soft) var(--radius-soft) 0;
}

.page-faq .code-chip {
  display: inline-block;
  padding: 0.05em 0.45em;
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--amber);
  background: var(--ink-deep);
  border: 1px solid var(--steel);
  border-radius: 6px;
  white-space: nowrap;
}

.page-faq .faq-ready {
  padding: clamp(2.4rem, 6vw, 4.5rem) 0;
  border-top: var(--line);
  background: var(--ink-deep);
}

.page-faq .faq-ready__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-faq .faq-ready__body .section-title {
  margin: 0.25rem 0 0.9rem;
  max-width: 22ch;
}

.page-faq .faq-ready__body .lede {
  margin: 0 0 1.3rem;
  color: var(--foam-dim);
}

.page-faq .faq-ready__list {
  display: grid;
  margin: 0 0 1.4rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-ready__list li {
  display: grid;
  gap: 0.2rem 1rem;
  grid-template-columns: minmax(0, 1fr);
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-ready__k {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-faq .faq-ready__v {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--foam-dim);
}

.page-faq .faq-ready__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 1.1rem;
}

.page-faq .faq-ready__mail {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.9;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .faq-ready__mail-addr {
  display: inline-block;
  padding: 0.08em 0.4em;
  color: var(--amber);
  border: 1px dashed var(--steel);
  border-radius: 5px;
  user-select: all;
  cursor: copy;
}

.page-faq .faq-ready__figure {
  margin: 0;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--harbor);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-ready__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
}

.page-faq .faq-ready__figure figcaption {
  padding: 0.7rem 0.9rem;
  font-size: 0.8rem;
  color: var(--mist);
  border-top: 1px solid var(--faq-hair);
}

@media (min-width: 560px) {
  .page-faq .faq-ready__list li {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
  }
}

@media (min-width: 820px) {
  .page-faq .faq-dock__portholes {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-faq .faq-ready__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
    align-items: start;
    gap: clamp(2rem, 5vw, 4rem);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(230px, 0.72fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-board__layout {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
    gap: clamp(2rem, 4vw, 3.4rem);
  }

  .page-faq .faq-filters {
    position: sticky;
    top: 108px;
    flex-direction: column;
    flex-wrap: nowrap;
    padding: 1rem 0.9rem;
    border: 1px solid var(--faq-hair);
    border-radius: var(--radius-card);
    background: var(--faq-panel);
    box-shadow: var(--shadow-soft);
  }

  .page-faq .faq-filters .pill {
    justify-content: space-between;
  }
}

@media (max-width: 559px) {
  .page-faq .faq-hero::after {
    width: 200px;
    right: -90px;
    bottom: -90px;
  }

  .page-faq .porthole__desc {
    font-size: 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .porthole,
  .page-faq .pill,
  .page-faq .qa__q,
  .page-faq .qa__chev::before,
  .page-faq .qa__chev::after {
    transition: none;
  }

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