.page-faq {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-faq .guide-hero {
  background: var(--paper);
  border-bottom: 3px solid var(--ink);
  padding: 36px 20px 24px;
}

.page-faq .guide-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-num);
  font-size: 0.82rem;
  font-weight: 700;
}

.page-faq .breadcrumb a {
  color: var(--blue-ink);
  text-decoration: none;
  border-bottom: 2px solid var(--blue);
}

.page-faq .breadcrumb-current {
  color: var(--ink);
}

.page-faq .guide-title {
  margin: 14px 0 12px;
  font-size: clamp(1.75rem, 4.5vw, 3.1rem);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.page-faq .guide-desc {
  margin: 0;
  max-width: 820px;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
}

.page-faq .trouble-block {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 2px solid var(--ink);
}

.page-faq .trouble-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  font-size: 1.05rem;
  font-weight: 900;
}

.page-faq .trouble-title::before {
  content: "?";
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  background: var(--magenta);
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  font-family: var(--font-num);
  font-weight: 900;
}

.page-faq .trouble-rail {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 12px;
}

.page-faq .trouble-tag {
  flex: 0 0 auto;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 700;
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  color: var(--ink);
  text-decoration: none;
  background: var(--yellow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .trouble-tag:hover {
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 var(--ink);
}

.page-faq .trouble-tag:nth-child(3n+1) {
  background: var(--yellow);
}

.page-faq .trouble-tag:nth-child(3n+2) {
  background: var(--cyan);
}

.page-faq .trouble-tag:nth-child(3n) {
  background: var(--magenta);
}

.page-faq .guide-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 20px;
  display: grid;
  gap: 32px;
}

.page-faq .guide-aside {
  background: var(--violet);
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0 var(--ink);
  padding: 20px;
}

.page-faq .glossary-head {
  text-align: center;
}

.page-faq .glossary-cover {
  display: block;
  width: 120px;
  height: 120px;
  margin: 0 auto 12px;
  object-fit: cover;
  border: 3px solid var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
  background: var(--white);
}

.page-faq .glossary-title {
  display: inline-block;
  margin: 0;
  padding: 4px 14px;
  font-size: 1.4rem;
  font-weight: 900;
  background: var(--yellow);
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
}

.page-faq .glossary-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
}

.page-faq .glossary-item {
  display: grid;
  grid-template-columns: 98px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  background: var(--white);
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 rgba(26, 26, 46, 0.95);
  padding: 8px 10px;
}

.page-faq .glossary-item dt {
  font-weight: 900;
  font-size: 0.85rem;
  line-height: 1.3;
  color: var(--violet-ink);
}

.page-faq .glossary-item dd {
  margin: 0;
  font-size: 0.83rem;
  line-height: 1.45;
  color: var(--ink);
  min-width: 0;
}

.page-faq .glossary-summary {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.1);
  border: 2px dashed rgba(255, 255, 255, 0.45);
}

.page-faq .summary-num {
  font-family: var(--font-num);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  color: var(--yellow);
}

.page-faq .summary-label {
  font-size: 0.85rem;
  color: var(--white);
}

.page-faq .summary-ver {
  margin-left: auto;
  padding: 4px 8px;
  font-family: var(--font-num);
  font-weight: 700;
  background: var(--yellow);
  color: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
}

.page-faq .guide-main {
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0 var(--ink);
  padding: 20px;
}

.page-faq .faq-block-title {
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 3px solid var(--ink);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.page-faq .faq-title {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 900;
}

.page-faq .count-chip {
  margin-left: auto;
  padding: 4px 10px;
  font-family: var(--font-num);
  font-size: 0.85rem;
  font-weight: 700;
  background: var(--yellow);
  border: 2px solid var(--ink);
}

.page-faq .faq-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .faq-filter-btn {
  padding: 7px 14px;
  font-family: var(--font-num);
  font-size: 0.82rem;
  font-weight: 700;
  border: 2px solid var(--ink);
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
  box-shadow: 2px 2px 0 var(--ink);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-filter-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink);
}

.page-faq .faq-filter-btn[aria-pressed="true"] {
  background: var(--yellow);
  box-shadow: 4px 4px 0 var(--ink);
  transform: translate(-1px, -1px);
}

.page-faq details.faq-card {
  background: var(--white);
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  margin-bottom: 14px;
  transition: box-shadow 0.2s ease;
}

.page-faq details.faq-card[open] {
  box-shadow: 6px 6px 0 var(--ink);
}

.page-faq .faq-q {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-weight: 800;
  font-size: 0.95rem;
  line-height: 1.4;
}

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

.page-faq .faq-q:hover {
  background: rgba(0, 0, 0, 0.03);
}

.page-faq .faq-q::after {
  content: "\002B";
  display: grid;
  place-items: center;
  margin-left: auto;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  font-family: var(--font-num);
  font-size: 1.4rem;
  font-weight: 900;
  background: var(--yellow);
  border: 2px solid var(--ink);
}

.page-faq details[open] .faq-q::after {
  content: "\2212";
  background: var(--cyan);
}

.page-faq .faq-cat {
  flex: 0 0 auto;
  padding: 3px 8px;
  font-family: var(--font-num);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border: 2px solid var(--ink);
  background: var(--paper);
}

.page-faq .cat-use,
.page-faq .cat-catalog {
  background: var(--yellow);
}

.page-faq .cat-cost,
.page-faq .cat-feedback {
  background: var(--orange);
}

.page-faq .cat-dual,
.page-faq .cat-search {
  background: var(--cyan);
}

.page-faq .cat-cn {
  background: var(--violet);
  color: var(--white);
}

.page-faq .cat-version {
  background: var(--magenta);
}

.page-faq .cat-status {
  background: var(--blue);
}

.page-faq .faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}

.page-faq details[open] .faq-answer {
  grid-template-rows: 1fr;
}

.page-faq .faq-answer-inner {
  overflow: hidden;
  padding: 0 0 16px;
}

.page-faq .faq-answer-inner p {
  margin: 0 18px 8px;
  font-size: 0.92rem;
  line-height: 1.65;
}

.page-faq .faq-answer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 18px 0;
}

.page-faq .faq-answer-meta a {
  padding: 5px 12px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--blue-ink);
  text-decoration: none;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-answer-meta a:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink);
}

.page-faq .guide-steps {
  background: var(--db-blue);
  border-top: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
  padding: 42px 0;
}

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

.page-faq .section-eyebrow {
  display: inline-block;
  padding: 3px 10px;
  font-family: var(--font-num);
  font-size: 0.8rem;
  font-weight: 700;
  background: var(--yellow);
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  margin-bottom: 10px;
}

.page-faq .guide-steps .section-title {
  margin: 0 0 6px;
  color: var(--white);
}

.page-faq .guide-steps .section-note {
  color: rgba(255, 255, 255, 0.75);
}

.page-faq .steps-grid {
  display: grid;
  gap: 20px;
}

.page-faq .step-card {
  position: relative;
  background: var(--white);
  border: 3px solid var(--ink);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.55);
  padding: 20px 18px 18px;
}

.page-faq .step-num {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 14px;
  font-family: var(--font-num);
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--ink);
  background: var(--yellow);
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
}

.page-faq .step-card:nth-child(1) .step-num {
  background: var(--yellow);
}

.page-faq .step-card:nth-child(2) .step-num {
  background: var(--cyan);
}

.page-faq .step-card:nth-child(3) .step-num {
  background: var(--magenta);
}

.page-faq .step-card:nth-child(4) .step-num {
  background: var(--blue);
}

.page-faq .step-card h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
  font-weight: 900;
  line-height: 1.3;
}

.page-faq .step-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.55;
}

.page-faq .steps-visual {
  max-width: 760px;
  margin: 32px auto 0;
  background: var(--dg-green);
  border: 3px solid var(--ink);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.4);
  padding: 14px;
}

.page-faq .steps-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--ink);
}

.page-faq .steps-visual figcaption {
  padding: 10px 4px 2px;
  color: var(--white);
  font-family: var(--font-num);
  font-size: 0.82rem;
}

.page-faq .guide-more {
  background: var(--paper);
  padding: 40px 20px;
}

.page-faq .guide-more-head {
  max-width: 1200px;
  margin: 0 auto 20px;
  border-bottom: 3px solid var(--ink);
  padding-bottom: 10px;
}

.page-faq .guide-more-head h2 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 900;
}

.page-faq .guide-more-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.page-faq .guide-more-card {
  display: block;
  background: var(--white);
  border: 3px solid var(--ink);
  box-shadow: 6px 6px 0 var(--ink);
  padding: 16px;
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .guide-more-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--ink);
}

.page-faq .guide-more-card:nth-child(1) {
  border-top: 8px solid var(--yellow);
}

.page-faq .guide-more-card:nth-child(2) {
  border-top: 8px solid var(--cyan);
}

.page-faq .guide-more-card:nth-child(3) {
  border-top: 8px solid var(--violet);
}

.page-faq .guide-more-card:nth-child(4) {
  border-top: 8px solid var(--magenta);
}

.page-faq .guide-more-card .guide-more-tag {
  display: inline-block;
  padding: 2px 8px;
  font-family: var(--font-num);
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--paper);
  border: 2px solid var(--ink);
  margin-bottom: 10px;
}

.page-faq .guide-more-card h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 900;
  line-height: 1.4;
}

.page-faq .guide-more-card p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.5;
  opacity: 0.85;
}

@media (max-width: 380px) {
  .page-faq .glossary-item {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}

@media (min-width: 640px) {
  .page-faq .guide-main {
    padding: 28px;
  }
}

@media (min-width: 900px) {
  .page-faq .steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .step-card:not(:last-child)::after {
    content: "\2192";
    position: absolute;
    top: 50%;
    right: -20px;
    transform: translateY(-50%);
    z-index: 2;
    font-family: var(--font-num);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--yellow);
    text-shadow: 2px 2px 0 var(--ink);
  }

  .page-faq .guide-more-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-faq .guide-layout {
    grid-template-columns: 340px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .guide-aside {
    position: sticky;
    top: 96px;
  }
}