@keyframes page-faq-fade-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq {
  --faq-pad: clamp(18px, 4vw, 32px);
  --faq-radius-lg: 28px;
  --faq-radius-md: 18px;
  --faq-radius-sm: 12px;
  --faq-dark: #1F2D3D;
  --faq-white: rgba(255, 255, 255, .94);
  --faq-ink-soft: rgba(44, 62, 80, .78);
  --faq-panel-border: rgba(255, 255, 255, .22);
  background: var(--bg-page);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
}

.page-faq__shell {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--faq-pad);
  box-sizing: border-box;
}

.page-faq a {
  -webkit-tap-highlight-color: transparent;
}

.page-faq__hero {
  position: relative;
  padding: 32px 0 30px;
  overflow: hidden;
  background: var(--bg-page);
}

.page-faq__hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 7px;
  background: linear-gradient(90deg, var(--bg-zone-1) 0%, var(--bg-zone-2) 34%, var(--bg-zone-3) 68%, var(--accent) 100%);
}

.page-faq__crumb {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-primary);
  opacity: .72;
  margin-bottom: 16px;
}

.page-faq__crumb a {
  color: var(--text-primary);
  text-decoration: none;
}

.page-faq__crumb a:hover {
  color: var(--status-hot);
}

.page-faq__crumb-sep {
  margin: 0 6px;
}

.page-faq__hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(26px, 4.2vw, 44px);
  font-weight: 900;
  line-height: 1.18;
  margin: 0 0 8px;
  letter-spacing: -.01em;
}

.page-faq__lead {
  font-family: var(--font-heading);
  font-size: clamp(15px, 2vw, 20px);
  font-weight: 600;
  color: var(--text-primary);
  opacity: .78;
  margin: 0 0 18px;
}

.page-faq__keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.page-faq__keywords span {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  color: var(--text-primary);
  white-space: nowrap;
}

.page-faq__jump {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-faq__jump::-webkit-scrollbar {
  display: none;
}

.page-faq__jump a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--text-primary);
  color: var(--text-inverse);
  border-radius: 999px;
  padding: 8px 18px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.page-faq__jump a span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  font-weight: 700;
}

.page-faq__zone {
  padding: 46px 0 54px;
}

.page-faq__zone-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.page-faq__zone-index {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(255, 255, 255, .26);
  border-radius: var(--faq-radius-sm);
  padding: 10px 14px;
  line-height: 1;
  white-space: nowrap;
}

.page-faq__zone-head h2 {
  font-family: var(--font-heading);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  line-height: 1.2;
  margin: 0 0 4px;
}

.page-faq__zone-head p {
  margin: 0;
  font-size: 15px;
  color: inherit;
  opacity: .82;
}

.page-faq__zone--retrieval {
  background: var(--bg-zone-1);
  color: var(--text-primary);
}

.page-faq__zone--filter {
  background: var(--bg-zone-2);
  color: var(--text-primary);
}

.page-faq__zone--update {
  background: var(--bg-zone-3);
  color: var(--text-inverse);
}

.page-faq__zone--faq {
  background: var(--bg-page);
  color: var(--text-primary);
}

.page-faq__zone--contact {
  background: var(--faq-dark);
  color: var(--text-inverse);
}

.page-faq__zone--contact .page-faq__zone-head p {
  color: rgba(255, 255, 255, .72);
}

.page-faq__zone--contact .page-faq__zone-index {
  background: rgba(255, 255, 255, .14);
}

.page-faq__retrieval-grid {
  display: grid;
  gap: 24px;
  align-items: start;
}

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

.page-faq__step {
  position: relative;
  background: var(--faq-white);
  border-radius: var(--faq-radius-md);
  padding: 18px 20px 18px 68px;
  box-shadow: 0 6px 18px rgba(44, 62, 80, .08);
}

.page-faq__step::before {
  content: counter(faq-step-counter);
  counter-increment: faq-step-counter;
  position: absolute;
  left: 18px;
  top: 18px;
  width: 34px;
  height: 34px;
  background: var(--text-primary);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-faq__step::after {
  content: "↓";
  position: absolute;
  left: 24px;
  bottom: -17px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  z-index: 1;
}

.page-faq__step:last-child::after {
  content: "";
}

.page-faq__step-meta {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--status-hot);
  margin-bottom: 4px;
}

.page-faq__step h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 800;
  margin: 0 0 6px;
  color: var(--text-primary);
}

.page-faq__step p {
  margin: 0;
  font-size: 14px;
  color: var(--faq-ink-soft);
}

.page-faq__step b {
  color: var(--text-primary);
}

.page-faq__fig {
  margin: 0;
  background: var(--faq-white);
  border-radius: var(--faq-radius-lg);
  padding: 14px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(44, 62, 80, .08);
}

.page-faq__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 500px;
  margin: 0 auto;
  border-radius: var(--faq-radius-md);
  object-fit: cover;
}

.page-faq__searchline {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  background: var(--faq-white);
  border-radius: var(--faq-radius-md);
  padding: 12px;
  box-shadow: 0 8px 24px rgba(44, 62, 80, .08);
}

.page-faq__search {
  flex: 1 1 220px;
  min-width: 0;
  border: 0;
  outline: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-primary);
  padding: 10px 14px;
}

.page-faq__search::placeholder {
  color: var(--text-primary);
  opacity: .45;
}

.page-faq__search-btn {
  display: inline-block;
  background: var(--text-primary);
  color: var(--text-inverse);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: var(--faq-radius-sm);
  text-decoration: none;
  white-space: nowrap;
}

.page-faq__filter-grid {
  display: grid;
  gap: 22px;
  align-items: start;
}

.page-faq__filter-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq__filter-item {
  background: var(--faq-white);
  border-radius: var(--faq-radius-md);
  padding: 16px;
  display: grid;
  gap: 12px;
  box-shadow: 0 6px 18px rgba(44, 62, 80, .08);
}

.page-faq__filter-chip {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  align-self: start;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--bg-card-alt);
  border-radius: var(--faq-radius-sm);
  padding: 8px 12px;
  line-height: 1.3;
}

.page-faq__filter-chip--zones {
  background: var(--bg-zone-1);
}

.page-faq__filter-chip--alpha {
  background: var(--text-primary);
  color: var(--accent);
}

.page-faq__filter-chip--year {
  background: var(--accent);
}

.page-faq__filter-chip--sort {
  background: var(--bg-zone-3);
  color: var(--text-inverse);
}

.page-faq__filter-chip--tags {
  background: var(--bg-zone-2);
}

.page-faq__filter-chip--status i {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-inverse);
  background: var(--status-updating);
  border-radius: 999px;
  padding: 4px 9px;
}

.page-faq__filter-chip--status i:nth-child(2) {
  background: var(--status-finished);
}

.page-faq__filter-chip--status i:nth-child(3) {
  background: var(--status-hot);
}

.page-faq__filter-copy h3 {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 800;
  margin: 0 0 4px;
  color: var(--text-primary);
}

.page-faq__filter-copy p {
  margin: 0;
  font-size: 14px;
  color: var(--faq-ink-soft);
}

.page-faq__filter-tag {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--accent);
  border-radius: 999px;
  padding: 4px 10px;
}

.page-faq__cloudpanel {
  background: var(--faq-white);
  border-radius: var(--faq-radius-lg);
  padding: 22px;
  box-shadow: 0 8px 24px rgba(44, 62, 80, .08);
}

.page-faq__cloudpanel h3 {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 800;
  margin: 0 0 16px;
  color: var(--text-primary);
}

.page-faq__cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-faq__cloud-word {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  white-space: nowrap;
}

.page-faq__cloud-word--zone1 {
  background: var(--bg-zone-1);
  border-color: transparent;
  color: var(--text-primary);
}

.page-faq__cloud-word--zone2 {
  background: var(--bg-zone-2);
  border-color: transparent;
  color: var(--text-primary);
}

.page-faq__cloud-word--zone3 {
  background: var(--bg-zone-3);
  border-color: transparent;
  color: var(--text-inverse);
}

.page-faq__cloud-word--updating {
  background: var(--status-updating);
  border-color: transparent;
  color: var(--text-inverse);
}

.page-faq__cloud-word--finished {
  background: var(--status-finished);
  border-color: transparent;
  color: var(--text-inverse);
}

.page-faq__cloud-word--hot {
  background: var(--status-hot);
  border-color: transparent;
  color: var(--text-inverse);
}

.page-faq__cloud-word--accent {
  background: var(--accent);
  border-color: transparent;
  color: var(--text-primary);
}

.page-faq__cloud-word--plain {
  background: var(--bg-card-alt);
  border-color: var(--border);
  color: var(--text-primary);
}

.page-faq__cloud-word--big {
  font-size: 17px;
  font-weight: 800;
  padding: 9px 18px;
}

.page-faq__cloud-word--mid {
  font-size: 15px;
  padding: 7px 14px;
}

.page-faq__update-grid {
  display: grid;
  gap: 20px;
  align-items: start;
}

.page-faq__update-cards {
  display: grid;
  gap: 14px;
}

.page-faq__update-card {
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--faq-radius-md);
  padding: 20px;
}

.page-faq__update-stat {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 10px;
}

.page-faq__update-stat--batch {
  font-size: 46px;
}

.page-faq__update-stat--version {
  font-size: 26px;
}

.page-faq__update-card h3 {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 800;
  color: var(--text-inverse);
  margin: 0 0 6px;
}

.page-faq__update-card p {
  margin: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, .86);
}

.page-faq__sync {
  margin: 0;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--faq-radius-lg);
  padding: 14px;
  text-align: center;
}

.page-faq__sync img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  margin: 0 auto;
  border-radius: var(--faq-radius-md);
  object-fit: cover;
}

.page-faq__sync-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, .82);
}

.page-faq__log-entry {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
  padding: 15px 22px;
  color: var(--text-inverse);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
}

.page-faq__log-entry b {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
}

.page-faq__faqlist {
  display: grid;
  gap: 12px;
  max-width: 860px;
}

.page-faq__faq {
  background: var(--bg-card);
  border-left: 6px solid var(--accent);
  border-radius: var(--faq-radius-md);
  overflow: hidden;
}

.page-faq__faq summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  padding: 18px 20px 18px 52px;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 800;
  color: var(--text-primary);
}

.page-faq__faq summary::-webkit-details-marker {
  display: none;
}

.page-faq__faq summary::before {
  content: "Q";
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  background: var(--text-primary);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-faq__faq summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  opacity: .7;
  transition: transform var(--speed);
}

.page-faq__faq[open] summary::after {
  content: "−";
}

.page-faq__faq-body {
  padding: 14px 20px 18px 52px;
  border-top: 1px dashed var(--border);
  font-size: 15px;
  color: var(--faq-ink-soft);
}

.page-faq__faq[open] .page-faq__faq-body {
  animation: page-faq-fade-in .25s ease-out;
}

.page-faq__faq-body p {
  margin: 0;
}

.page-faq__faq-body p::before {
  content: "A ";
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--status-hot);
}

.page-faq__faq-body b {
  color: var(--text-primary);
}

.page-faq__faq-body a {
  color: var(--status-hot);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq__contact-grid {
  display: grid;
  gap: 14px;
}

.page-faq__contact-card {
  position: relative;
  display: grid;
  gap: 6px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--faq-radius-md);
  padding: 20px;
  padding-right: 48px;
  color: var(--text-inverse);
  text-decoration: none;
}

.page-faq__contact-card--link {
  background: var(--accent);
  border-color: transparent;
  color: var(--text-primary);
}

.page-faq__contact-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  opacity: .72;
}

.page-faq__contact-card--link .page-faq__contact-label {
  opacity: .82;
  color: var(--text-primary);
}

.page-faq__contact-value {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
  word-break: break-word;
}

.page-faq__contact-arrow {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 26px;
  color: var(--text-primary);
  opacity: .8;
}

.page-faq__mono {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 400;
}

@media (min-width: 860px) {
  .page-faq__hero {
    padding: 48px 0 40px;
  }

  .page-faq__zone {
    padding: 68px 0 76px;
  }

  .page-faq__zone-head {
    margin-bottom: 36px;
  }

  .page-faq__retrieval-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-faq__fig {
    position: sticky;
    top: 24px;
  }

  .page-faq__filter-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
  }

  .page-faq__filter-item {
    grid-template-columns: 190px minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
  }

  .page-faq__filter-tag {
    justify-self: end;
  }

  .page-faq__update-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
    gap: 24px;
  }

  .page-faq__update-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .page-faq__sync {
    position: sticky;
    top: 24px;
  }

  .page-faq__contact-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .page-faq__contact-card {
    padding: 24px;
    padding-right: 48px;
  }
}