.page-faq {
  --faq-orange: #FF6B00;
  --faq-deep: #0A1F44;
  --faq-blue: #1E3A8A;
  --faq-silver: #C0C0C0;
  --faq-light: #F5F5F5;
  --faq-white: #FFFFFF;
  --faq-success: #2E7D32;
  --faq-text-secondary: #5A6B8C;
  --faq-shadow: 8px 8px 0 rgba(10, 31, 68, 0.18);
  --faq-border-w: 2px;
  background: var(--faq-light);
  color: var(--faq-deep);
}

.page-faq .container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.page-faq a {
  color: var(--faq-deep);
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
}

.page-faq a:hover {
  color: var(--faq-orange);
}

.page-faq .breadcrumb {
  padding-top: 28px;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
}

.page-faq .breadcrumb__link {
  text-decoration: none;
  color: var(--faq-text-secondary);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

.page-faq .breadcrumb__link::after {
  content: "/";
  margin-left: 8px;
  color: var(--faq-silver);
}

.page-faq .breadcrumb__link:hover {
  color: var(--faq-orange);
  border-bottom-color: var(--faq-orange);
}

.page-faq .breadcrumb__current {
  color: var(--faq-deep);
  font-weight: 700;
}

.page-faq__hero {
  background: var(--faq-deep);
  color: var(--faq-white);
  position: relative;
  overflow: hidden;
  border-bottom: 4px solid var(--faq-orange);
}

.page-faq__hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -40px;
  width: 320px;
  height: 320px;
  background: var(--faq-blue);
  clip-path: polygon(25% 0%, 100% 0%, 100% 75%, 0% 100%, 0% 25%);
  opacity: 0.35;
  pointer-events: none;
}

.page-faq__hero::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: 30%;
  width: 260px;
  height: 260px;
  border: 3px solid var(--faq-orange);
  transform: rotate(12deg);
  opacity: 0.25;
  pointer-events: none;
}

.page-faq__hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 40px 0 48px;
  position: relative;
  z-index: 2;
}

.page-faq__hero-copy {
  max-width: 640px;
}

.page-faq .page-faq__hero-copy .label-tag {
  border-color: var(--faq-orange);
  color: var(--faq-orange);
}

.page-faq__hero-title {
  font-family: var(--font-sans);
  font-size: clamp(32px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.08;
  margin: 18px 0 20px;
  letter-spacing: -0.02em;
  color: var(--faq-white);
}

.page-faq__hero-subtitle {
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0;
  font-family: var(--font-sans);
}

.page-faq__hero-panel {
  background: var(--faq-white);
  border: var(--faq-border-w) solid var(--faq-orange);
  box-shadow: var(--faq-shadow);
  padding: 24px;
  color: var(--faq-deep);
  position: relative;
  max-width: 100%;
}

.page-faq__hero-panel::before {
  content: attr(data-note);
  position: absolute;
  top: -12px;
  left: 12px;
  background: var(--faq-orange);
  color: var(--faq-white);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 2px 10px;
  letter-spacing: 0.08em;
}

.page-faq__hero-panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.page-faq__status-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--faq-success);
  box-shadow: 0 0 0 0 rgba(46, 125, 50, 0.6);
  animation: faq-pulse 2s infinite;
}

@keyframes faq-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(46, 125, 50, 0.5);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(46, 125, 50, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(46, 125, 50, 0);
  }
}

.page-faq__hero-panel-label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--faq-text-secondary);
}

.page-faq__hero-panel-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--faq-deep);
  margin: 0 0 8px;
}

.page-faq__hero-panel-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--faq-text-secondary);
  margin: 0 0 20px;
}

.page-faq__hero-panel-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid var(--faq-deep);
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
  cursor: pointer;
}

.page-faq .btn--primary {
  background: var(--faq-orange);
  border-color: var(--faq-orange);
  color: var(--faq-white);
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.35);
}

.page-faq .btn--primary:hover {
  background: #E65C00;
  border-color: #E65C00;
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(255, 255, 255, 0.25);
}

.page-faq .btn--outline {
  background: transparent;
  border-color: var(--faq-orange);
  color: var(--faq-orange);
}

.page-faq .btn--outline:hover {
  background: rgba(255, 107, 0, 0.08);
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 rgba(255, 107, 0, 0.3);
}

.page-faq__category-nav {
  padding-top: 56px;
  padding-bottom: 16px;
}

.page-faq__section-head {
  margin-bottom: 28px;
}

.page-faq .page-faq__section-head .label-tag {
  border-color: var(--faq-orange);
  color: var(--faq-orange);
  background: var(--faq-white);
}

.page-faq__section-title {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  margin: 12px 0 0;
  letter-spacing: -0.01em;
  color: var(--faq-deep);
}

.page-faq__category-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq__category-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--faq-white);
  border: 2px solid var(--faq-deep);
  box-shadow: 6px 6px 0 rgba(10, 31, 68, 0.12);
  padding: 18px 20px;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-faq__category-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 rgba(10, 31, 68, 0.16);
  border-color: var(--faq-orange);
}

.page-faq__category-num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--faq-orange);
  min-width: 32px;
}

.page-faq__category-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--faq-deep);
  flex: 1;
}

.page-faq__category-count {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--faq-text-secondary);
  border: 1px solid var(--faq-silver);
  padding: 4px 10px;
  white-space: nowrap;
}

.page-faq__search {
  padding: 32px 0 8px;
}

.page-faq__search-inner {
  background: var(--faq-white);
  border: 2px solid var(--faq-deep);
  box-shadow: var(--faq-shadow);
  padding: 24px;
}

.page-faq__search-label {
  display: block;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--faq-deep);
}

.page-faq__search-row {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.page-faq__search-input {
  flex: 1;
  min-height: 48px;
  padding: 12px 16px;
  border: 2px solid var(--faq-deep);
  border-right: none;
  background: var(--faq-light);
  font-size: 15px;
  color: var(--faq-deep);
  font-family: var(--font-sans);
  width: 100%;
  border-radius: 0;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.page-faq__search-input:focus {
  border-color: var(--faq-orange);
  box-shadow: inset 0 0 0 2px rgba(255, 107, 0, 0.25);
}

.page-faq__search-input::placeholder {
  color: var(--faq-text-secondary);
  opacity: 0.8;
}

.page-faq__search-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  background: var(--faq-deep);
  color: var(--faq-white);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.05em;
  border: 2px solid var(--faq-deep);
  white-space: nowrap;
}

.page-faq__search-hint {
  font-size: 13px;
  color: var(--faq-text-secondary);
  margin: 12px 0 0;
  line-height: 1.5;
}

.page-faq__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 40px 0 64px;
}

.page-faq__sidebar {
  order: 1;
}

.page-faq__sidebar-inner {
  position: sticky;
  top: 80px;
  background: var(--faq-white);
  border: 2px solid var(--faq-silver);
  padding: 20px;
}

.page-faq__sidebar-inner .label-tag {
  display: inline-block;
  margin-bottom: 14px;
}

.page-faq__toc {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq__toc li {
  border-bottom: 1px solid var(--faq-light);
}

.page-faq__toc li:last-child {
  border-bottom: none;
}

.page-faq__toc a {
  display: block;
  padding: 12px 4px;
  text-decoration: none;
  color: var(--faq-deep);
  font-size: 14px;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: border-color 0.2s, color 0.2s, padding-left 0.2s;
}

.page-faq__toc a:hover {
  border-left-color: var(--faq-orange);
  color: var(--faq-orange);
  padding-left: 10px;
}

.page-faq__content {
  order: 2;
  min-width: 0;
}

.page-faq__group {
  margin-bottom: 56px;
}

.page-faq__group-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  border-bottom: 3px solid var(--faq-deep);
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.page-faq__group-index {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--faq-orange);
  background: var(--faq-deep);
  padding: 4px 14px;
  line-height: 1.2;
  min-width: 56px;
  text-align: center;
}

.page-faq__group-title {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 800;
  margin: 0 0 4px;
  color: var(--faq-deep);
}

.page-faq__group-desc {
  font-size: 14px;
  color: var(--faq-text-secondary);
  margin: 0;
  line-height: 1.5;
}

.page-faq__qa-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq__qa-item {
  background: var(--faq-white);
  border: 2px solid var(--faq-deep);
  box-shadow: 5px 5px 0 rgba(10, 31, 68, 0.1);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.page-faq__qa-item[data-open] {
  border-color: var(--faq-orange);
  box-shadow: 8px 8px 0 rgba(255, 107, 0, 0.2);
}

.page-faq__qa-question {
  margin: 0;
}

.page-faq__qa-trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  background: none;
  border: none;
  padding: 20px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--faq-deep);
  text-align: left;
  cursor: pointer;
  min-height: 60px;
  transition: background-color 0.2s;
  border-radius: 0;
}

.page-faq__qa-trigger:hover {
  background: rgba(255, 107, 0, 0.05);
}

.page-faq__qa-trigger:focus-visible {
  outline: 3px solid var(--faq-orange);
  outline-offset: -3px;
}

.page-faq__qa-q {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--faq-deep);
  color: var(--faq-orange);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
}

.page-faq__qa-item[data-open] .page-faq__qa-q {
  background: var(--faq-orange);
  color: var(--faq-white);
}

.page-faq__qa-title {
  flex: 1;
  line-height: 1.4;
}

.page-faq__qa-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  position: relative;
  transition: transform 0.3s ease;
}

.page-faq__qa-icon::before,
.page-faq__qa-icon::after {
  content: "";
  position: absolute;
  top: 11px;
  left: 4px;
  width: 16px;
  height: 2px;
  background: var(--faq-orange);
  transition: background-color 0.2s;
}

.page-faq__qa-icon::after {
  transform: rotate(90deg);
  transition: transform 0.3s ease;
}

.page-faq__qa-item[data-open] .page-faq__qa-icon::after {
  transform: rotate(0deg);
}

.page-faq__qa-panel {
  display: none;
}

.page-faq__qa-item[data-open] .page-faq__qa-panel {
  display: block;
}

.page-faq__qa-body {
  padding: 0 20px 22px 70px;
  border-top: 1px dashed var(--faq-silver);
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-deep);
}

.page-faq__qa-body p {
  margin: 14px 0;
}

.page-faq__qa-lead {
  font-weight: 500;
}

.page-faq__steps {
  counter-reset: faq-step;
  list-style: none;
  margin: 14px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq__steps li {
  position: relative;
  padding-left: 36px;
  counter-increment: faq-step;
}

.page-faq__steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--faq-orange);
  border: 1px solid var(--faq-orange);
  background: var(--faq-white);
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.page-faq__qa-note {
  margin-top: 16px;
  display: block;
  font-size: 13px;
  padding: 12px 14px;
  background: var(--faq-light);
  border-left: 4px solid var(--faq-orange);
  line-height: 1.55;
}

.page-faq__qa-note.exhibit-note {
  position: relative;
}

.page-faq__qa-note.exhibit-note::before {
  content: attr(data-note);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--faq-orange);
  display: block;
  margin-bottom: 4px;
}

.page-faq__figure {
  margin: 20px 0 10px;
}

.page-faq .img-frame {
  display: block;
  background: var(--faq-light);
  border: 2px solid var(--faq-deep);
  position: relative;
  overflow: hidden;
}

.page-faq .img-frame--4x3 {
  aspect-ratio: 4 / 3;
}

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

.page-faq__figcaption {
  font-size: 13px;
  color: var(--faq-text-secondary);
  padding: 10px 4px 0;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-faq__feature-list {
  margin: 14px 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq__feature-list li::marker {
  color: var(--faq-orange);
}

.page-faq__feedback {
  background: var(--faq-deep);
  color: var(--faq-white);
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
  border-top: 4px solid var(--faq-orange);
}

.page-faq__feedback::before {
  content: "";
  position: absolute;
  top: -60px;
  left: -40px;
  width: 220px;
  height: 220px;
  background: var(--faq-blue);
  clip-path: polygon(0% 0%, 100% 0%, 100% 30%, 30% 100%, 0% 100%);
  opacity: 0.4;
  pointer-events: none;
}

.page-faq__feedback-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  position: relative;
  z-index: 2;
}

.page-faq .page-faq__feedback-copy .label-tag {
  border-color: var(--faq-orange);
  color: var(--faq-orange);
}

.page-faq__feedback-title {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 900;
  margin: 16px 0 12px;
  line-height: 1.15;
  color: var(--faq-white);
}

.page-faq__feedback-desc {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 0 24px;
}

.page-faq__feedback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .page-faq__feedback .btn--primary {
  background: var(--faq-orange);
  border-color: var(--faq-orange);
  color: var(--faq-white);
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.2);
}

.page-faq .page-faq__feedback .btn--outline {
  border-color: var(--faq-white);
  color: var(--faq-white);
}

.page-faq .page-faq__feedback .btn--outline:hover {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.15);
}

.page-faq__feedback-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-start;
  align-content: flex-start;
  padding-top: 8px;
}

.page-faq__feedback-tag {
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: rgba(255, 255, 255, 0.9);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 8px 14px;
  letter-spacing: 0.04em;
  background: rgba(30, 58, 138, 0.3);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.page-faq__feedback-tag:hover {
  border-color: var(--faq-orange);
  color: var(--faq-orange);
  background: rgba(255, 107, 0, 0.08);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq__status-indicator {
    animation: none;
    box-shadow: none;
  }
}

@media (max-width: 599px) {
  .page-faq__hero {
    padding-left: 0;
    padding-right: 0;
  }
  .page-faq__hero .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .page-faq__hero-grid {
    padding-top: 32px;
    padding-bottom: 40px;
    gap: 28px;
  }
  .page-faq__hero-panel {
    padding: 20px;
  }
  .page-faq__qa-body {
    padding-left: 16px;
    padding-right: 16px;
  }
  .page-faq__qa-trigger {
    padding: 16px;
    gap: 10px;
  }
  .page-faq__qa-q {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
  .page-faq__qa-title {
    font-size: 15px;
  }
  .page-faq__steps li {
    padding-left: 32px;
  }
  .page-faq__category-card {
    padding: 14px 16px;
  }
  .page-faq__category-count {
    font-size: 12px;
  }
}

@media (min-width: 600px) {
  .page-faq__category-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-faq__feedback-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 768px) {
  .page-faq__hero-grid {
    grid-template-columns: 1.3fr 0.7fr;
    align-items: center;
    padding: 56px 0;
    gap: 48px;
  }
  .page-faq__search-row {
    max-width: 640px;
  }
  .page-faq__feedback-grid {
    grid-template-columns: 1fr 0.8fr;
    gap: 48px;
  }
}

@media (min-width: 960px) {
  .page-faq__layout {
    grid-template-columns: 240px 1fr;
    gap: 48px;
    padding: 56px 0 80px;
  }
  .page-faq__content {
    min-width: 0;
  }
  .page-faq__category-list {
    grid-template-columns: repeat(5, 1fr);
  }
  .page-faq__category-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 20px 16px;
  }
  .page-faq__category-count {
    align-self: flex-start;
  }
}

@media (min-width: 1200px) {
  .page-faq__hero-grid {
    padding: 72px 0;
  }
}