.brand img {
  display: block;
  width: 190px;
  height: auto;
}

.brand small {
  display: block;
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--muted);
  white-space: nowrap;
}

.product-preview {
  height: 720px;
  min-height: 0;
  overflow: auto;
  background: #eef3fa;
  scrollbar-width: thin;
  scrollbar-color: #3f7cff #0b1422;
}

.product-preview img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: initial;
  transform: none;
}

.product-preview:hover img {
  transform: none;
}

.faq-section {
  border-top: 1px solid rgba(95, 125, 173, .14);
  background: linear-gradient(180deg, rgba(22, 43, 76, .16), rgba(7, 12, 20, 0));
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(240px, .65fr) minmax(0, 1.35fr);
  gap: 64px;
  align-items: start;
}

.faq-intro {
  position: sticky;
  top: 112px;
}

.faq-intro h2 {
  margin: 0;
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1;
  letter-spacing: -.035em;
}

.faq-intro p {
  margin: 22px 0 28px;
  color: var(--muted);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(13, 23, 38, .76);
  overflow: hidden;
  transition: border-color .2s ease, background .2s ease;
}

.faq-list details[open] {
  border-color: rgba(77, 134, 255, .65);
  background: rgba(16, 30, 51, .9);
}

.faq-list summary {
  position: relative;
  padding: 22px 58px 22px 24px;
  cursor: pointer;
  list-style: none;
  color: #f6f9ff;
  font-weight: 800;
  font-size: 18px;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 24px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid #35547d;
  border-radius: 9px;
  color: #75a6ff;
  transform: translateY(-50%);
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 24px 24px;
  color: var(--muted);
}

.faq-answer p {
  margin: 0 0 14px;
}

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

.faq-answer ul {
  margin: 0 0 16px;
  padding-left: 22px;
}

.faq-answer strong {
  color: #f4f7fd;
}

.faq-answer code {
  padding: 2px 6px;
  border: 1px solid #28405f;
  border-radius: 6px;
  background: #08111d;
  color: #82b1ff;
}

@media (max-width: 900px) {
  .product-preview {
    height: min(72vh, 680px);
  }

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .faq-intro {
    position: static;
  }
}

@media (max-width: 580px) {
  .brand img {
    width: 155px;
  }

  .brand small {
    display: none;
  }

  .product-preview {
    height: 560px;
  }

  .faq-list summary {
    padding: 19px 54px 19px 19px;
    font-size: 16px;
  }

  .faq-list summary::after {
    right: 18px;
  }

  .faq-answer {
    padding: 0 19px 20px;
    font-size: 15px;
  }
}