.page-faq {
  --faq-chapter-size: 3.2rem;
  background: var(--color-light-gray);
}

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-gray-deep);
  color: var(--color-white);
  padding: calc(var(--header-height) + 36px) 0 48px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -15%;
  width: 68%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-race-red) 0%, var(--color-deep-red) 100%);
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 28px;
  width: 72px;
  height: 4px;
  background: var(--color-neon);
}

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

.page-faq .faq-hero .breadcrumbs {
  color: rgba(255, 255, 255, 0.55);
}

.page-faq .faq-hero .breadcrumbs a {
  color: rgba(255, 255, 255, 0.85);
}

.page-faq .faq-hero h1 {
  margin: 20px 0 16px;
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero-lead {
  max-width: 560px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.05rem;
  line-height: 1.7;
  margin: 0;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 28px;
  margin-top: 36px;
}

.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 0, 0, 0.12);
  min-width: 0;
}

.page-faq .faq-search svg {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  color: var(--color-medium-gray);
}

.page-faq .faq-search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--color-gray-deep);
  font: inherit;
  font-size: 0.95rem;
  outline: none;
}

.page-faq .faq-search input::placeholder {
  color: var(--color-medium-gray);
}

.page-faq .faq-search-badge {
  flex: 0 0 auto;
  background: var(--color-gray-deep);
  color: var(--color-neon);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 6px 10px;
}

.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-top: 48px;
  padding-bottom: 80px;
}

.page-faq .faq-index {
  background: var(--color-gray-deep);
  color: var(--color-white);
  padding: 28px 24px;
  border-left: 4px solid var(--color-race-red);
}

.page-faq .faq-index-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.page-faq .faq-index .kicker {
  color: var(--color-white);
}

.page-faq .faq-index-total {
  font-family: var(--font-mono);
  color: var(--color-neon);
  font-size: 0.85rem;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 20px 0 24px;
  padding: 0;
}

.page-faq .faq-index-list li + li {
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 4px;
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  transition: color 0.2s;
}

.page-faq .faq-index-list a:hover {
  color: var(--color-white);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-race-red);
  font-weight: 700;
}

.page-faq .faq-index-list a:hover .faq-index-num {
  color: var(--color-neon);
}

.page-faq .faq-index-text {
  font-size: 0.95rem;
  line-height: 1.45;
}

.page-faq .faq-index-arrow {
  margin-left: auto;
  color: rgba(255, 255, 255, 0.3);
  font-family: var(--font-mono);
  transition: transform 0.2s;
}

.page-faq .faq-index-list a:hover .faq-index-arrow {
  transform: translateX(4px);
  color: var(--color-neon);
}

.page-faq .faq-index-note {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

.page-faq .faq-index-note .tag {
  margin-bottom: 8px;
}

.page-faq .faq-answers {
  display: grid;
  gap: 64px;
}

.page-faq .faq-section-head {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--color-gray-deep);
  margin-bottom: 24px;
}

.page-faq .faq-section-head .chapter-num {
  font-family: var(--font-display);
  font-size: var(--faq-chapter-size);
  line-height: 0.8;
  color: var(--color-race-red);
  opacity: 0.25;
}

@supports (-webkit-text-stroke: 2px var(--color-race-red)) {
  .page-faq .faq-section-head .chapter-num {
    color: transparent;
    opacity: 1;
    -webkit-text-stroke: 2px var(--color-race-red);
  }
}

.page-faq .faq-section-head h2 {
  margin: 0 0 4px;
  font-size: 1.7rem;
  letter-spacing: -0.02em;
}

.page-faq .faq-section-head p {
  margin: 0;
  color: var(--color-medium-gray);
  font-size: 0.9rem;
}

.page-faq .faq-item {
  background: var(--color-white);
  border: 1px solid #e6e6e6;
  border-left: 3px solid var(--color-race-red);
  margin-top: 12px;
  scroll-margin-top: calc(var(--header-height) + 16px);
}

.page-faq .faq-item[open] {
  border-left-color: var(--color-neon);
}

.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-faq .faq-q-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-race-red);
  min-width: 2ch;
}

.page-faq .faq-item[open] .faq-q-num {
  color: var(--color-neon);
}

.page-faq .faq-q-text {
  flex: 1;
  margin: 0;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.45;
}

.page-faq .faq-q-icon {
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #dddddd;
  color: var(--color-medium-gray);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.page-faq .faq-q-icon::before {
  content: "+";
}

.page-faq .faq-item[open] .faq-q-icon {
  background: var(--color-race-red);
  border-color: var(--color-race-red);
  color: var(--color-white);
}

.page-faq .faq-item[open] .faq-q-icon::before {
  content: "–";
}

.page-faq .faq-answer {
  padding: 0 20px 24px;
  color: #3a3a3a;
  font-size: 0.98rem;
  line-height: 1.75;
  border-top: 1px dashed #e0e0e0;
  margin-top: 2px;
}

.page-faq .faq-answer p {
  margin: 16px 0 0;
}

.page-faq .faq-answer a {
  color: var(--color-race-red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item[open] .faq-answer {
  animation: faqReveal 0.35s ease-out;
}

.page-faq .faq-figure {
  margin: 20px 0 0;
}

.page-faq .faq-figure img {
  max-width: 100%;
  height: auto;
  border: 1px solid #eaeaea;
  background: #ffffff;
}

.page-faq .faq-figure-portrait img {
  width: 100%;
  max-width: 260px;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 0.83rem;
  color: var(--color-medium-gray);
  line-height: 1.5;
}

.page-faq .faq-contact {
  background: linear-gradient(120deg, var(--color-race-red) 0%, var(--color-deep-red) 100%);
  color: var(--color-white);
  padding: 56px 0;
}

.page-faq .faq-contact-inner {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.page-faq .faq-contact .kicker {
  color: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-contact h2 {
  margin: 0 0 10px;
  font-size: 1.8rem;
  letter-spacing: -0.02em;
}

.page-faq .faq-contact p {
  margin: 0;
  opacity: 0.82;
  line-height: 1.7;
}

.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-faq .faq-contact-actions .btn-primary {
  background: var(--color-white);
  color: var(--color-race-red);
  border: 1px solid transparent;
}

.page-faq .faq-contact-actions .btn-ghost {
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--color-white);
}

@keyframes faqReveal {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: calc(var(--header-height) + 64px) 0 72px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    margin-top: 28px;
  }

  .page-faq .faq-search {
    padding: 18px 22px;
  }

  .page-faq .faq-body {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 56px;
    padding-top: 72px;
    padding-bottom: 104px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-height) + 24px);
  }

  .page-faq .faq-section-head .chapter-num {
    font-size: 4.2rem;
  }

  .page-faq .faq-section-head h2 {
    font-size: 2rem;
  }

  .page-faq .faq-figure-portrait img {
    max-width: 240px;
  }

  .page-faq .faq-contact {
    padding: 72px 0;
  }

  .page-faq .faq-contact-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .page-faq .faq-contact-actions {
    flex-shrink: 0;
  }
}