.page-faq {
  background:
    repeating-linear-gradient(135deg, transparent, transparent 14px, rgba(10, 31, 68, 0.025) 14px, rgba(10, 31, 68, 0.025) 28px),
    var(--c-gray);
}

.page-faq .btn {
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}
.page-faq .btn:active {
  transform: scale(0.97);
}

.page-faq .faq-hero {
  position: relative;
  background-color: var(--c-primary);
  color: var(--c-white);
  overflow: hidden;
  border-bottom: 4px solid var(--c-accent);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 42%;
  height: 100%;
  background: repeating-linear-gradient(to right, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 26px);
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -6%;
  bottom: -60px;
  width: 44%;
  height: 120px;
  background: rgba(255, 107, 53, 0.22);
  transform: skewX(-14deg);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-5);
  padding-top: var(--sp-6);
  padding-bottom: var(--sp-6);
}

.page-faq .faq-hero-copy {
  max-width: 680px;
}
.page-faq .faq-hero-kicker {
  display: inline-block;
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
  border: 1px solid rgba(255, 107, 53, 0.55);
  padding: 6px 12px;
  margin-bottom: var(--sp-4);
  background: rgba(255, 107, 53, 0.08);
}
.page-faq h1#faq-hero-title {
  margin: 0 0 var(--sp-4);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.01em;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.page-faq .faq-h1-main {
  font-size: 2.7rem;
  color: var(--c-white);
}
.page-faq .faq-h1-sub {
  font-size: 1.18rem;
  color: rgba(255, 255, 255, 0.82);
  font-weight: 700;
  font-style: normal;
}
.page-faq .faq-hero-desc {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
  max-width: 560px;
  margin: 0 0 var(--sp-5);
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
}
.page-faq .faq-hero-stat {
  display: flex;
  flex-direction: column;
  border-left: 3px solid var(--c-accent);
  padding-left: var(--sp-3);
}
.page-faq .faq-hero-stat strong {
  font-family: var(--font-display);
  font-size: 1.7rem;
  line-height: 1;
  color: var(--c-white);
}
.page-faq .faq-hero-stat span {
  font-size: var(--fs-micro);
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

.page-faq .faq-hero-figure {
  margin: 0;
  position: relative;
  max-width: 400px;
}
.page-faq .faq-hero-figure::before {
  content: "";
  position: absolute;
  top: -10px;
  left: -10px;
  right: 10px;
  bottom: 10px;
  border: 2px solid var(--c-accent);
  border-radius: 2px;
  z-index: -1;
  opacity: 0.6;
}
.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 3px solid var(--c-white);
  box-shadow: var(--shadow-lg);
}
.page-faq .faq-hero-figure figcaption {
  display: inline-block;
  margin-top: 10px;
  font-size: var(--fs-micro);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  border-bottom: 1px solid var(--c-accent);
  padding-bottom: 4px;
}

.page-faq .faq-breadcrumbs-wrap {
  padding-top: var(--sp-4);
  padding-bottom: 0;
}
.page-faq .faq-breadcrumbs-wrap .breadcrumbs {
  font-size: var(--fs-small);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-5);
  padding-top: var(--sp-5);
  padding-bottom: var(--sp-7);
}

.page-faq .faq-sidebar {
  min-width: 0;
}
.page-faq .faq-sidebar-sticky {
  position: relative;
  background: var(--c-primary);
  color: var(--c-white);
  border: 3px solid var(--c-border);
  box-shadow: var(--shadow-md);
  padding: var(--sp-4);
}
.page-faq .faq-sidebar-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  border-bottom: 2px solid var(--c-accent);
  padding-bottom: var(--sp-2);
  margin-bottom: var(--sp-3);
}
.page-faq .faq-sidebar-index {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-size: 1.4rem;
  color: var(--c-white);
}
.page-faq .faq-sidebar-en {
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-accent);
}

.page-faq .faq-cat-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.page-faq .faq-cat-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  padding: 10px 14px;
  font-size: var(--fs-small);
  font-weight: 600;
  white-space: nowrap;
  flex: 0 0 auto;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.page-faq .faq-cat-num {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  color: var(--c-accent);
  font-size: var(--fs-body);
}
.page-faq .faq-cat-link:hover,
.page-faq .faq-cat-link:focus-visible {
  background: var(--c-primary-hover);
  border-color: var(--c-accent);
  color: var(--c-white);
  outline: none;
}
.page-faq .faq-sidebar-note {
  display: none;
}

.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-category {
  background: var(--c-white);
  border: 2px solid var(--c-border);
  box-shadow: var(--shadow-sm);
  padding: var(--sp-4) var(--sp-4) var(--sp-3);
  margin-bottom: var(--sp-5);
  border-left: 5px solid var(--c-border);
  transition: border-left-color 0.3s ease;
  scroll-margin-top: calc(var(--header-h) + 20px);
}
.page-faq .faq-category:target {
  border-left-color: var(--c-accent);
  box-shadow: var(--shadow-md);
}

.page-faq .faq-category-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  border-bottom: 2px solid var(--c-gray);
  padding-bottom: var(--sp-3);
  margin-bottom: var(--sp-4);
}
.page-faq .faq-category-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  font-size: var(--fs-title);
  color: var(--c-primary);
  display: inline-block;
  position: relative;
}
.page-faq .faq-category-head h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 34px;
  height: 4px;
  background: var(--c-accent);
}
.page-faq .faq-category-tag {
  font-size: var(--fs-micro);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-2);
  background: var(--c-gray);
  padding: 5px 10px;
  border: 1px solid #E4E7EC;
}

.page-faq .faq-sync-media {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  background: var(--c-gray);
  border: 1px solid #E4E7EC;
  padding: var(--sp-3);
  margin-bottom: var(--sp-4);
  flex-wrap: wrap;
}
.page-faq .faq-sync-media img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 3px solid var(--c-white);
  box-shadow: var(--shadow-sm);
  flex: 1 1 200px;
  min-width: 200px;
}
.page-faq .faq-sync-media p {
  flex: 1 1 160px;
  margin: 0;
  font-size: var(--fs-small);
  color: var(--c-text-2);
  line-height: 1.6;
  border-left: 3px solid var(--c-accent);
  padding-left: var(--sp-3);
}

.page-faq .faq-item {
  margin-bottom: var(--sp-3);
}

.page-faq .faq-item summary {
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3);
  background: var(--c-white);
  border: 2px solid var(--c-border);
  cursor: pointer;
  font-weight: 700;
  font-size: var(--fs-body);
  line-height: 1.55;
  color: var(--c-text);
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  background: var(--c-gray);
  border-color: var(--c-primary);
  outline: none;
}
.page-faq .faq-item summary:focus-visible {
  outline: 2px dashed var(--c-accent);
  outline-offset: 3px;
}
.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--c-accent);
  flex: 0 0 auto;
  transition: transform 0.2s ease;
}
.page-faq .faq-item details[open] summary::after {
  content: "−";
}

.page-faq .faq-q-icon {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--c-primary);
  color: var(--c-white);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  margin-top: 2px;
  position: relative;
}
.page-faq .faq-q-icon::after {
  content: "";
  position: absolute;
  right: -4px;
  bottom: -4px;
  width: 30px;
  height: 30px;
  border: 1px solid var(--c-accent);
  z-index: -1;
}

.page-faq .faq-answer {
  padding: var(--sp-3) var(--sp-3) var(--sp-3) calc(30px + var(--sp-3) + var(--sp-3));
  background: var(--c-gray);
  border: 2px solid var(--c-border);
  border-top: 0;
  color: var(--c-text-2);
}
.page-faq .faq-item details[open] .faq-answer {
  animation: faqAnswerIn 0.28s ease both;
}
.page-faq .faq-answer p {
  margin: 0;
  line-height: 1.75;
  font-size: var(--fs-small);
}
@keyframes faqAnswerIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-feedback {
  background: var(--c-primary);
  color: var(--c-white);
  text-align: center;
  padding: var(--sp-5) var(--sp-4);
  border: 3px solid var(--c-border);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.page-faq .faq-feedback::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 60%;
  height: 3px;
  background: var(--c-accent);
  transform: translateX(-50%);
}
.page-faq .faq-feedback-icon {
  width: 54px;
  height: 54px;
  margin: 0 auto var(--sp-3);
  background: var(--c-accent);
  color: var(--c-white);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-size: 2.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(-4deg);
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.14);
}
.page-faq .faq-feedback h2 {
  margin: 0 0 var(--sp-2);
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  font-size: var(--fs-subtitle);
}
.page-faq .faq-feedback > p {
  margin: 0 0 var(--sp-4);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-small);
}
.page-faq .faq-feedback-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3);
}
.page-faq .faq-feedback .btn-outline {
  border-color: var(--c-white);
  color: var(--c-white);
  background: transparent;
}
.page-faq .faq-feedback .btn-outline:hover,
.page-faq .faq-feedback .btn-outline:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  outline: none;
}

@media (min-width: 640px) {
  .page-faq h1#faq-hero-title {
    gap: 4px;
  }
  .page-faq .faq-h1-main {
    font-size: 3.4rem;
  }
  .page-faq .faq-h1-sub {
    font-size: 1.3rem;
  }
  .page-faq .faq-hero-inner {
    padding-top: var(--sp-7);
    padding-bottom: var(--sp-7);
  }
  .page-faq .faq-category {
    padding: var(--sp-5);
  }
  .page-faq .faq-sync-media {
    flex-wrap: nowrap;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: var(--sp-6);
  }
  .page-faq .faq-hero-figure {
    width: 400px;
  }
  .page-faq .faq-layout {
    grid-template-columns: 260px 1fr;
    gap: var(--sp-6);
    align-items: start;
  }
  .page-faq .faq-sidebar-sticky {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    padding: var(--sp-5) var(--sp-4);
  }
  .page-faq .faq-cat-nav {
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
    gap: 0;
  }
  .page-faq .faq-cat-link {
    justify-content: flex-start;
    background: transparent;
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 14px 4px;
    border-radius: 0;
    font-size: var(--fs-body);
  }
  .page-faq .faq-cat-link:hover,
  .page-faq .faq-cat-link:focus-visible {
    background: transparent;
    border-bottom-color: var(--c-accent);
  }
  .page-faq .faq-sidebar-note {
    display: block;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--fs-micro);
    letter-spacing: 0.28em;
    color: rgba(255, 255, 255, 0.32);
    border-right: 1px solid rgba(255, 107, 53, 0.5);
    padding-right: 10px;
  }
  .page-faq .faq-main {
    padding-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item details[open] .faq-answer {
    animation: none;
  }
  .page-faq .btn {
    transition: none;
  }
  .page-faq .faq-cat-link,
  .page-faq .faq-item summary {
    transition: none;
  }
}