.page-faq {
  --faq-red: #FF3B30;
  --faq-blue: #0A84FF;
  --faq-indigo: #4B0082;
  --faq-ink: #1A1A2E;
  --faq-slate: #4A4A5A;
  --faq-grid: #D1D5DB;
  background-color: var(--color-light-gray, #F2F4F8);
  background-image:
    linear-gradient(var(--color-grid, #D1D5DB) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid, #D1D5DB) 1px, transparent 1px);
  background-size: 44px 44px;
  font-family: var(--font-body, "Inter", "Noto Sans SC", sans-serif);
  color: var(--color-ink, #1A1A2E);
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

.page-faq .help-hero {
  position: relative;
  overflow: hidden;
  padding: 2.5rem 0 2rem;
  background-color: var(--color-ink, #1A1A2E);
  background-image:
    linear-gradient(135deg, rgba(255, 59, 48, 0.16) 0%, transparent 45%),
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: auto, 44px 44px, 44px 44px;
  border-bottom: 4px solid var(--color-red, #FF3B30);
  color: var(--color-white, #FFFFFF);
}

.page-faq .help-hero::after {
  content: "HELP/INDEX";
  position: absolute;
  top: 52%;
  right: -1.5rem;
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-weight: 900;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 1;
  color: rgba(255, 255, 255, 0.045);
  white-space: nowrap;
  pointer-events: none;
  transform: rotate(-90deg) translateY(50%);
}

.page-faq .help-hero__grid {
  display: grid;
  gap: 2rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

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

.page-faq .help-hero__title {
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: clamp(2.25rem, 7vw, 5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0.75rem 0 1.25rem;
}

.page-faq .help-hero__sub {
  max-width: 42rem;
  margin: 0 0 1.5rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1rem;
  line-height: 1.8;
}

.page-faq .help-search__bar {
  display: flex;
  align-items: stretch;
  background: var(--color-white, #FFFFFF);
  border: 1px solid var(--color-grid, #D1D5DB);
  overflow: hidden;
}

.page-faq .help-search__icon {
  display: grid;
  place-items: center;
  padding: 0 0.5rem 0 0.9rem;
  background: var(--color-light-gray, #F2F4F8);
  color: var(--color-slate, #4A4A5A);
}

.page-faq .help-search__input {
  flex: 1;
  min-width: 0;
  border: 0;
  padding: 0.85rem 1rem;
  background: transparent;
  color: var(--color-ink, #1A1A2E);
  font-family: var(--font-body, "Inter", "Noto Sans SC", sans-serif);
  font-size: 0.95rem;
  outline: none;
}

.page-faq .help-search__input::placeholder {
  color: var(--color-slate, #4A4A5A);
}

.page-faq .help-search__btn {
  flex: none;
  border-radius: 0;
  border: 0;
  padding: 0.85rem 1.2rem;
  font-weight: 800;
}

.page-faq .help-search__meta {
  margin: 0.5rem 0 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

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

.page-faq .help-hero__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.04);
}

.page-faq .help-layout {
  padding: 3rem 0 4rem;
}

.page-faq .help-layout .container {
  display: grid;
  gap: 2.5rem;
  align-items: start;
}

.page-faq .help-sidebar__inner {
  position: relative;
  padding: 1.5rem 1.25rem;
  background: var(--color-white, #FFFFFF);
  border: 1px solid var(--color-grid, #D1D5DB);
}

.page-faq .help-sidebar__icon {
  display: block;
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-bottom: 4px solid var(--color-indigo, #4B0082);
  margin-bottom: 1rem;
}

.page-faq .help-sidebar__title {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin: 0.5rem 0 0.25rem;
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: 1.4rem;
  font-weight: 800;
}

.page-faq .help-sidebar__title::after {
  content: "/05";
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-indigo, #4B0082);
}

.page-faq .help-sidebar__desc {
  margin: 0 0 1.25rem;
  color: var(--color-slate, #4A4A5A);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-faq .help-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1.5rem;
}

.page-faq .help-cats .filter-btn {
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--color-blue, #0A84FF);
  border-radius: 999px;
  background: var(--color-white, #FFFFFF);
  color: var(--color-blue, #0A84FF);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.2s;
}

.page-faq .help-cats .filter-btn:hover {
  background: var(--color-blue, #0A84FF);
  color: var(--color-white, #FFFFFF);
  transform: translateY(-2px);
}

.page-faq .help-cats .filter-btn.is-active {
  background: var(--color-blue, #0A84FF);
  color: var(--color-white, #FFFFFF);
  box-shadow: inset 0 0 0 2px var(--color-white, #FFFFFF);
}

.page-faq .help-sidebar__index {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-grid, #D1D5DB);
}

.page-faq .help-sidebar__index li {
  border-bottom: 1px solid var(--color-grid, #D1D5DB);
}

.page-faq .help-sidebar__index a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.25rem;
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-ink, #1A1A2E);
  text-decoration: none;
}

.page-faq .help-sidebar__index a::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  background: var(--color-red, #FF3B30);
  transform: rotate(45deg);
}

.page-faq .help-sidebar__index a:hover {
  color: var(--color-blue, #0A84FF);
}

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

.page-faq .help-main__title {
  margin: 0.25rem 0 0;
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  line-height: 1.2;
}

.page-faq .help-group {
  margin-top: 2.25rem;
}

.page-faq .help-group:first-of-type {
  margin-top: 1.75rem;
}

.page-faq .help-group__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1rem;
  padding-left: 1rem;
  border-left: 4px solid var(--color-blue, #0A84FF);
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.3;
}

.page-faq .help-group__no {
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--color-red, #FF3B30);
  background: rgba(255, 59, 48, 0.06);
  color: var(--color-red, #FF3B30);
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: 0.75rem;
  font-weight: 800;
}

.page-faq .help-card {
  position: relative;
  overflow: hidden;
  margin-bottom: 0.75rem;
  background: var(--color-white, #FFFFFF);
  border: 1px solid var(--color-grid, #D1D5DB);
  transition: border-color 0.3s;
}

.page-faq .help-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-red, #FF3B30) 0%, var(--color-blue, #0A84FF) 100%);
  z-index: 1;
}

.page-faq .help-card:hover {
  border-color: var(--color-indigo, #4B0082);
}

.page-faq .help-card__head {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin: 0;
  padding: 1rem 1.25rem 1rem 1.4rem;
  list-style: none;
  cursor: pointer;
}

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

.page-faq .help-card__head:focus-visible {
  outline: 3px solid var(--color-yellow, #FFD60A);
  outline-offset: -2px;
}

.page-faq .help-card__no {
  flex: none;
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--color-grid, #D1D5DB);
  background: var(--color-light-gray, #F2F4F8);
  color: var(--color-ink, #1A1A2E);
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: 0.75rem;
  font-weight: 800;
}

.page-faq .help-card__title {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--color-ink, #1A1A2E);
}

.page-faq .help-card__mark {
  flex: none;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--color-blue, #0A84FF);
  border-bottom: 2px solid var(--color-blue, #0A84FF);
  transform: rotate(45deg) translateY(-3px);
  transition: transform 0.3s var(--ease-out, cubic-bezier(0.22, 1, 0.36, 1));
}

.page-faq .help-card[open] .help-card__mark {
  transform: rotate(-135deg) translateY(-3px);
}

.page-faq .help-card__body {
  padding: 0 1.25rem 1.25rem 3rem;
  border-top: 1px dashed var(--color-grid, #D1D5DB);
  color: var(--color-slate, #4A4A5A);
  font-size: 0.95rem;
  line-height: 1.8;
}

.page-faq .help-card__body p {
  margin: 0.9rem 0 0;
}

.page-faq .help-card__body a {
  color: var(--color-blue, #0A84FF);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .help-support {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 1.5rem;
  margin: 3rem 0 0;
  padding: 2rem;
  background: var(--color-wine, #722F37);
  color: var(--color-white, #FFFFFF);
}

.page-faq .help-support::after {
  content: "CONTACT";
  position: absolute;
  top: -1.25rem;
  right: -0.75rem;
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: 5rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(255, 255, 255, 0.07);
  transform: rotate(12deg);
  pointer-events: none;
}

.page-faq .help-support__aside,
.page-faq .help-support__body {
  position: relative;
  z-index: 1;
}

.page-faq .help-support__code {
  display: inline-flex;
  margin-bottom: 0.75rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: var(--color-yellow, #FFD60A);
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.page-faq .help-support__strong {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1.25;
}

.page-faq .help-support__desc {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.95rem;
  line-height: 1.7;
}

.page-faq .help-support__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 1rem;
}

.page-faq .help-support__body .btn {
  border-radius: 0;
  border: 0;
  background: var(--color-red, #FF3B30);
  color: var(--color-white, #FFFFFF);
  font-family: var(--font-heading, "Archivo", "Noto Sans SC", sans-serif);
  font-size: 1rem;
  font-weight: 800;
  padding: 0.9rem 1.4rem;
  text-decoration: none;
  text-align: center;
}

.page-faq .help-support__note {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.8rem;
  line-height: 1.7;
}

@media (min-width: 900px) {
  .page-faq .help-hero {
    padding: 3.5rem 0 3rem;
  }

  .page-faq .help-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 3rem;
  }

  .page-faq .help-layout .container {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 2.5rem;
  }

  .page-faq .help-sidebar {
    position: sticky;
    top: 1.5rem;
    z-index: 5;
  }

  .page-faq .help-support {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    padding: 2.5rem 3rem;
  }
}