.page-faq {
  --faq-gap: clamp(18px, 3vw, 32px);
  --faq-block: clamp(34px, 5.4vw, 72px);
  --faq-pad: clamp(18px, 2.8vw, 28px);
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-faq .breadcrumb {
  margin-top: clamp(16px, 2.6vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: center;
  padding: clamp(18px, 3vw, 30px) 0 clamp(32px, 5vw, 60px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero-copy .eyebrow {
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
}

.page-faq .faq-hero .lede {
  max-width: 48ch;
  margin: 0;
}

.page-faq .faq-hero .btn-row {
  margin-top: clamp(20px, 3vw, 28px);
}

.page-faq .hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 44px);
  margin-top: clamp(24px, 3.4vw, 34px);
  padding-top: clamp(18px, 2.6vw, 24px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .stat {
  min-width: 96px;
}

.page-faq .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 3.2vw, 30px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-faq .stat-label {
  display: block;
  margin-top: 9px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--rock);
}

.page-faq .faq-hero-art {
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-faq .faq-hero-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 通用区块 ---------- */
.page-faq .faq-sec {
  padding: var(--faq-block) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 3.6vw, 40px);
}

.page-faq .faq-head .eyebrow {
  margin: 0 0 10px;
}

.page-faq .faq-head h2 {
  margin: 0 0 14px;
}

.page-faq .faq-head .lede {
  margin: 0;
  max-width: 56ch;
}

/* ---------- 检索三步 ---------- */
.page-faq .faq-find-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2.6vw, 24px);
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .step:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-faq .step-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 38px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--orange);
}

.page-faq .step-title {
  margin: 0 0 8px;
  font-size: clamp(16px, 2vw, 18px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--warm);
}

.page-faq .step-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(244, 239, 227, 0.74);
}

/* ---------- 检索示例 ---------- */
.page-faq .search-demo {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: var(--faq-pad);
}

.page-faq .demo-label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--rock);
  margin-bottom: 14px;
}

.page-faq .demo-field {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
  min-height: 46px;
  margin: 0;
  padding: 10px 14px;
  background: var(--ink);
  border: 1px solid var(--moss);
  box-shadow: inset 0 0 0 1px rgba(53, 240, 200, 0.16);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--warm);
}

.page-faq .demo-caret {
  display: inline-block;
  width: 2px;
  height: 16px;
  margin-left: 3px;
  background: var(--cyan);
}

.page-faq .demo-tokens {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .demo-tokens li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--warm);
}

.page-faq .demo-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: rgba(244, 239, 227, 0.64);
}

/* ---------- 换设备 ---------- */
.page-faq .handoff {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .handoff-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .handoff-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .handoff-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2.2vw, 20px);
}

.page-faq .handoff-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding-top: clamp(14px, 2.2vw, 20px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .handoff-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .handoff-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-faq .handoff-item .step-title {
  margin-bottom: 6px;
}

.page-faq .handoff-item .step-text a,
.page-faq .dl-card a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 200, 0.4);
}

/* ---------- 设备分段 ---------- */
.page-faq .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-faq .tab {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--rock);
  font: inherit;
  font-size: 14px;
  letter-spacing: 0.04em;
  padding: 12px 16px;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq .tab:hover {
  color: var(--warm);
}

.page-faq .tab[aria-selected="true"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .tabpanel {
  outline: none;
}

.page-faq .tabpanel:focus-visible {
  outline: 2px solid var(--line);
  outline-offset: 6px;
}

.page-faq .device-intro {
  margin: 0 0 4px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 239, 227, 0.64);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(15px, 2.4vw, 20px) 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, 1.7vw, 16.5px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--warm);
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .qa-marker {
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  display: grid;
  place-items: center;
  border: 1px solid var(--moss);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1;
  color: var(--cyan);
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.page-faq .qa-marker::before {
  content: "+";
}

.page-faq .qa summary:hover .qa-marker {
  border-color: var(--cyan);
}

.page-faq .qa[open] .qa-marker {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-faq .qa[open] .qa-marker::before {
  content: "\2013";
}

.page-faq .qa-body {
  padding: 0 0 clamp(18px, 2.6vw, 24px) 36px;
}

.page-faq .qa-body p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(244, 239, 227, 0.74);
}

.page-faq .qa-body p:last-child {
  margin-bottom: 0;
}

.page-faq .qa-body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 200, 0.4);
}

.page-faq .qa-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .qa-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(244, 239, 227, 0.74);
}

.page-faq .qa-steps .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding-top: 3px;
}

/* ---------- 下载 ---------- */
.page-faq .dl-grid {
  display: grid;
  gap: clamp(14px, 2.4vw, 22px);
}

.page-faq .dl-card {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: var(--faq-pad);
}

.page-faq .dl-card h3 {
  margin: 12px 0 10px;
  font-size: 16.5px;
  line-height: 1.5;
  color: var(--warm);
}

.page-faq .dl-card ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 239, 227, 0.74);
}

/* ---------- 联系准备 ---------- */
.page-faq .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .prep-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
}

.page-faq .prep-item .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
  padding-top: 4px;
}

.page-faq .prep-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: rgba(244, 239, 227, 0.76);
}

.page-faq .faq-contact {
  margin-top: clamp(24px, 4vw, 40px);
  padding: clamp(22px, 3.4vw, 38px);
  background: var(--warm);
  color: var(--ink);
}

.page-faq .faq-contact .label {
  color: var(--clay);
}

.page-faq .contact-lines {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.page-faq .faq-contact a {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 18px);
  text-decoration: none;
  border-bottom: 1px solid rgba(8, 28, 23, 0.3);
  word-break: break-all;
}

.page-faq .faq-contact a:hover {
  color: var(--cyan-press);
  border-bottom-color: var(--cyan-press);
}

.page-faq .faq-contact p {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(8, 28, 23, 0.74);
}

.page-faq .faq-contact p a {
  font-family: var(--font-body);
  font-size: 14px;
  border-bottom: 1px solid rgba(8, 28, 23, 0.34);
}

/* ---------- 相关页面 ---------- */
.page-faq .next-links {
  display: grid;
  gap: 1px;
  margin-top: clamp(32px, 5vw, 58px);
  background: var(--line-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .next-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 6px;
  background: var(--ink);
  color: var(--warm);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.18s ease, padding 0.18s ease;
}

.page-faq .next-link:hover,
.page-faq .next-link:focus-visible {
  color: var(--cyan);
  padding-left: 14px;
}

.page-faq .next-link span {
  font-family: var(--font-mono);
  color: var(--cyan);
  flex: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .dl-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .next-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  }

  .page-faq .faq-find-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-faq .handoff {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: center;
  }

  .page-faq .qa-body {
    padding-left: 36px;
    max-width: 78ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tab,
  .page-faq .qa-marker,
  .page-faq .next-link {
    transition: none;
  }
}