.faq { --gx: 18%; --gy: 52%; --gw: 50%; --gh: 42%; padding-top: var(--section); }

.faq-in {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  align-items: start;
  gap: 28px clamp(32px, 6vw, 96px);
}
.faq-head { position: sticky; top: calc(var(--nav-h) + 28px); }
.faq-head p { max-width: 24ch; margin-top: 14px; color: var(--ink-2); font-size: 16px; line-height: 1.5; }

.qa-list { display: grid; }
.qa button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  padding: 22px 0;
  border: 0;
  background: none;
  color: rgba(255, 255, 255, .72);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.015em;
  text-align: left;
  transition: color .25s;
}
.qa button:hover, .qa.is-open button { color: #fff; }
.qa-ico {
  display: grid;
  flex: none;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06);
  transition: background-color .25s, color .25s;
}
.qa-ico svg { width: 15px; height: 15px; transition: transform .5s var(--spring); }
.qa button:hover .qa-ico { background: rgba(255, 255, 255, .12); }
.qa.is-open .qa-ico { background: #fff; color: var(--dark); }
.qa.is-open .qa-ico svg { transform: rotate(45deg); }
.qa-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .5s var(--ease); }
.qa-a > div { overflow: hidden; visibility: hidden; transition: visibility 0s .5s; }
.qa.is-open .qa-a { grid-template-rows: 1fr; }
.qa.is-open .qa-a > div { visibility: visible; transition-delay: 0s; }
.qa-a p { max-width: 58ch; padding: 0 64px 26px 0; color: var(--ink-2); font-size: 16px; line-height: 1.6; }

@media (max-width: 860px) {
  .faq-in { grid-template-columns: minmax(0, 1fr); }
  .faq-head { position: static; }
  .qa button { padding: 18px 0; font-size: 17px; }
  .qa-a p { padding: 0 0 20px; font-size: 15px; }
}