.page-faq {
  --faq-card-bg: var(--surface);
  --faq-line: var(--border);
  --faq-num-size: 40px;
  --faq-pad: clamp(14px, 2.4vw, 20px);
  --faq-radius: 20px;
  scroll-behavior: smooth;
  position: relative;
  overflow: clip;
  background:
    radial-gradient(ellipse 80% 40% at 85% 0%, rgba(0, 255, 136, 0.06), transparent 70%),
    radial-gradient(ellipse 60% 30% at 10% 100%, rgba(0, 204, 255, 0.05), transparent 70%),
    var(--bg);
}

.page-faq .content-container {
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 32px);
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 0.875rem;
  color: var(--text-dim);
  flex-wrap: wrap;
}

.page-faq .breadcrumb-sep {
  color: var(--text-dim);
  opacity: 0.5;
}

.page-faq .breadcrumb-current {
  color: var(--accent);
  font-weight: 500;
}

.page-faq .faq-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 36px 0 32px;
  border-bottom: 1px solid var(--faq-line);
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.page-faq .faq-hero-copy {
  flex: 1 1 320px;
  min-width: 0;
}

.page-faq .faq-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue);
}

.page-faq .faq-eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--gradient);
  border-radius: 2px;
  display: inline-block;
}

.page-faq .faq-hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3vw, 2.5rem);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: 0.01em;
  margin: 14px 0 12px;
  color: var(--text);
}

.page-faq .faq-hero-copy > p:last-child {
  max-width: 58ch;
  color: var(--text-dim);
  line-height: 1.75;
  font-size: 1rem;
  margin: 0;
}

.page-faq .faq-hero-visual {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-faq .faq-hero-img {
  width: clamp(120px, 14vw, 200px);
  height: auto;
  border-radius: var(--radius-lg);
  filter: drop-shadow(0 0 22px rgba(0, 255, 136, 0.2));
  background: var(--surface);
  border: 1px solid var(--faq-line);
  object-fit: cover;
  aspect-ratio: 1 / 1;
}

.page-faq .faq-search-panel {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: var(--faq-pad);
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--faq-line);
  margin-bottom: 36px;
}

.page-faq .faq-search-label {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}

.page-faq .faq-search-box {
  flex: 1 1 280px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-pill);
  background: var(--bg);
  border: 1px solid var(--faq-line);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-search-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.12);
}

.page-faq .faq-search-icon {
  color: var(--text-dim);
  flex: 0 0 18px;
}

.page-faq .faq-search-input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
}

.page-faq .faq-search-input::placeholder {
  color: var(--text-dim);
}

.page-faq .faq-empty-tip {
  display: none;
  flex-basis: 100%;
  margin: 8px 0 4px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: rgba(0, 255, 136, 0.06);
  border: 1px dashed rgba(0, 255, 136, 0.3);
  color: var(--text-dim);
  font-size: 0.875rem;
}

.page-faq .faq-empty-tip[data-show] {
  display: block;
}

.page-faq [data-filter-hidden] {
  display: none !important;
}

.page-faq .help-split {
  display: block;
}

.page-faq .help-toc {
  margin-bottom: 24px;
}

.page-faq .toc-inner {
  padding: 16px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--faq-line);
}

.page-faq .toc-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.page-faq .toc-pills {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--faq-line) transparent;
  padding-bottom: 4px;
}

.page-faq .toc-pills::-webkit-scrollbar {
  height: 4px;
}

.page-faq .toc-pills::-webkit-scrollbar-thumb {
  background: var(--faq-line);
  border-radius: 4px;
}

.page-faq .toc-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  background: var(--bg);
  border: 1px solid var(--faq-line);
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 0.875rem;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.page-faq .toc-pill:hover,
.page-faq .toc-pill:focus-visible {
  border-color: var(--accent);
  background: var(--surface-highlight);
  color: var(--text);
  box-shadow: 0 0 18px rgba(0, 255, 136, 0.14);
  transform: translateY(-1px);
}

.page-faq .toc-pill-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.75rem;
  color: var(--accent);
}

.page-faq .help-answers {
  min-width: 0;
}

.page-faq .faq-block {
  margin-bottom: 44px;
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.page-faq .faq-block-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

.page-faq .faq-block-num {
  flex: 0 0 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(0, 255, 136, 0.14), rgba(0, 204, 255, 0.14));
  border: 1px solid rgba(0, 255, 136, 0.22);
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  box-shadow: inset 0 0 16px rgba(0, 255, 136, 0.06);
}

.page-faq .faq-block-head h2 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.25;
  margin: 2px 0 4px;
  color: var(--text);
}

.page-faq .faq-block-sub {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.875rem;
  line-height: 1.5;
}

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

.page-faq .faq-item {
  background: var(--faq-card-bg);
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
}

.page-faq .faq-item:hover {
  border-color: rgba(0, 255, 136, 0.35);
}

.page-faq .faq-item[open] {
  border-color: rgba(0, 255, 136, 0.5);
  box-shadow: 0 0 28px rgba(0, 255, 136, 0.1);
}

.page-faq .faq-q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-faq .faq-q-ring {
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(0, 255, 136, 0.4);
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9375rem;
  box-shadow: inset 0 0 10px rgba(0, 255, 136, 0.06), 0 0 12px rgba(0, 255, 136, 0.08);
}

.page-faq .faq-q-text {
  flex: 1;
  min-width: 0;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  letter-spacing: 0.01em;
}

.page-faq .faq-q-marker {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  position: relative;
}

.page-faq .faq-q-marker::before,
.page-faq .faq-q-marker::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 14px;
  height: 2px;
  background: var(--text-dim);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: background 0.2s ease, transform 0.3s ease;
}

.page-faq .faq-q-marker::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-q-marker::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.page-faq .faq-item[open] .faq-q-marker::before {
  background: var(--accent);
}

.page-faq .faq-item[open] .faq-q-ring {
  border-color: var(--accent);
  box-shadow: inset 0 0 10px rgba(0, 255, 136, 0.1), 0 0 18px rgba(0, 255, 136, 0.2);
}

.page-faq .faq-a {
  padding: 0 18px 18px calc(18px + 38px + 14px);
  color: var(--text-dim);
  font-size: 0.9375rem;
  line-height: 1.7;
  animation: faqAIn 0.28s ease;
}

.page-faq .faq-a p {
  margin: 0;
}

@keyframes faqAIn {
  0% {
    opacity: 0;
    transform: translateY(-6px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .mobile-guide {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: stretch;
}

.page-faq .mobile-guide-figure {
  margin: 0;
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--faq-line);
}

.page-faq .mobile-guide-img {
  width: min(240px, 100%);
  height: auto;
  border-radius: var(--radius-md);
  object-fit: cover;
  aspect-ratio: 4 / 3;
  background: var(--bg);
}

.page-faq .mobile-guide-figure figcaption {
  color: var(--text-dim);
  font-size: 0.8125rem;
  text-align: center;
}

.page-faq .faq-footnote {
  margin-top: 12px;
  padding: 20px 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(0, 255, 136, 0.08), rgba(0, 204, 255, 0.08));
  border: 1px solid rgba(0, 255, 136, 0.22);
  color: var(--text);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-faq .faq-footnote a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 255, 136, 0.3);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-footnote a:hover {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

@media (min-width: 768px) {
  .page-faq .faq-q {
    padding: 18px 22px;
  }

  .page-faq .faq-q-ring {
    flex-basis: 44px;
    width: 44px;
    height: 44px;
  }

  .page-faq .faq-a {
    padding: 0 22px 22px calc(22px + 44px + 16px);
  }

  .page-faq .faq-block-head {
    gap: 20px;
  }

  .page-faq .faq-block-num {
    flex-basis: 56px;
    height: 56px;
  }

  .page-faq .faq-block-head h2 {
    font-size: 1.625rem;
  }

  .page-faq .faq-search-panel {
    flex-wrap: nowrap;
  }

  .page-faq .faq-empty-tip {
    flex-basis: 100%;
  }

  .page-faq .mobile-guide {
    flex-direction: row;
    align-items: flex-start;
  }

  .page-faq .mobile-guide-figure {
    flex: 0 0 260px;
  }
}

@media (min-width: 1024px) {
  .page-faq .help-split {
    display: grid;
    grid-template-columns: 264px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .help-toc {
    margin-bottom: 0;
  }

  .page-faq .help-toc .toc-inner {
    position: sticky;
    top: calc(var(--header-height) + 24px);
    display: flex;
    flex-direction: column;
    padding: 20px;
  }

  .page-faq .toc-pills {
    flex-direction: column;
    gap: 10px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .toc-pill {
    width: 100%;
    white-space: normal;
    justify-content: flex-start;
    padding: 12px 18px;
  }

  .page-faq .toc-label {
    margin-bottom: 14px;
  }

  .page-faq .faq-hero-copy h1 {
    font-size: 2.5rem;
  }

  .page-faq .faq-hero {
    padding: 48px 0 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq {
    scroll-behavior: auto;
  }

  .page-faq .faq-a {
    animation: none;
  }

  .page-faq .faq-q-marker::before,
  .page-faq .faq-q-marker::after,
  .page-faq .toc-pill,
  .page-faq .faq-item {
    transition: none;
  }
}