.page-faq {
  --faq-side: 252px;
  --faq-gap: clamp(28px, 3.6vw, 52px);
}

.page-faq .breadcrumb {
  padding-top: 26px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: 22px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -10% -20% auto auto;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle at 70% 30%, rgba(34, 211, 238, 0.14), transparent 62%);
  pointer-events: none;
}

.page-faq .faq-hero .wrap {
  position: relative;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-head);
  font-size: clamp(30px, 5.4vw, 50px);
  line-height: 1.15;
  letter-spacing: 0.012em;
  color: var(--ink);
  max-width: 24ch;
}

.page-faq .faq-hero .lede {
  max-width: 62ch;
  color: var(--ink-dim);
}

.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 34px;
  margin: 30px 0 0;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-stats .stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-stats .stat-num {
  font-family: var(--font-mono);
  font-size: 26px;
  color: var(--cyan);
  line-height: 1;
}

.page-faq .faq-stats .stat-label {
  font-size: 14px;
  color: var(--ink-dim);
}

/* 章节预览轨道 */
.page-faq .path-rail {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

.page-faq .path-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--panel-deep);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: 8px;
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.4;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .path-chip .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .path-chip:hover,
.page-faq .path-chip:focus-visible {
  background: var(--panel);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  padding-top: 8px;
  padding-bottom: 72px;
}

.page-faq .faq-index {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-deep);
  padding: 20px 18px;
}

.page-faq .faq-index-title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--ink-dim);
  text-transform: uppercase;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: none;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 6px;
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 14.5px;
  line-height: 1.45;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-index-list a .mono {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--line);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  background: var(--panel);
  color: var(--ink);
}

.page-faq .faq-index-list a:hover .mono,
.page-faq .faq-index-list a:focus-visible .mono {
  color: var(--cyan);
}

.page-faq .faq-index-foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-dim);
}

.page-faq .faq-index-foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.35);
}

/* ---------- 步骤区块 ---------- */
.page-faq .faq-flow {
  display: grid;
  gap: clamp(34px, 5vw, 60px);
  min-width: 0;
}

.page-faq .faq-step {
  scroll-margin-top: 100px;
  min-width: 0;
}

.page-faq .step-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}

.page-faq .step-num {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  flex: none;
}

.page-faq .step-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(21px, 2.6vw, 28px);
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .step-lede {
  margin: 0 0 22px;
  color: var(--ink-dim);
  max-width: 58ch;
}

.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-faq .step-list > li {
  position: relative;
  padding-left: 50px;
  min-width: 0;
}

.page-faq .step-list > li::before {
  counter-increment: faqstep;
  content: "0" counter(faqstep);
  position: absolute;
  left: 0;
  top: 2px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.page-faq .step-list {
  counter-reset: faqstep;
}

.page-faq .step-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 17px;
  line-height: 1.4;
  color: var(--ink);
}

.page-faq .step-list p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink-dim);
}

.page-faq .step-list p a,
.page-faq .step-note a,
.page-faq .faq-callout a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.35);
}

.page-faq .step-note {
  margin: 22px 0 0;
  padding: 14px 16px;
  background: var(--panel-deep);
  border-left: 3px solid var(--gold);
  border-radius: 0 8px 8px 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-dim);
}

/* 提示块 */
.page-faq .faq-callout {
  margin: 24px 0 0;
  padding: 18px 20px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.09), rgba(167, 139, 250, 0.06));
  border: 1px solid var(--line);
  border-radius: 10px;
}

.page-faq .faq-callout p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink);
}

/* ---------- 标签页 ---------- */
.page-faq .tabs {
  margin-top: 4px;
}

.page-faq .faq-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}

.page-faq .faq-tablist .tab {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink-dim);
  font-family: var(--font-body);
  font-size: 14.5px;
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-tablist .tab:hover {
  color: var(--ink);
  border-color: var(--line);
}

.page-faq .faq-tablist .tab[aria-selected="true"] {
  background: rgba(34, 211, 238, 0.14);
  border-color: rgba(34, 211, 238, 0.6);
  color: var(--cyan);
}

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

.page-faq .tab-panel {
  margin-bottom: 24px;
}

.page-faq .tab-panel p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink-dim);
  max-width: 62ch;
}

.page-faq .tab-panel p:last-child {
  margin-bottom: 0;
}

/* ---------- 图片 ---------- */
.page-faq .img-frame {
  margin: 26px 0 0;
}

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

/* ---------- 回访筛选示意 ---------- */
.page-faq .ret-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
  padding: 12px 14px;
  background: var(--panel-deep);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.page-faq .ret-pill {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--ink-dim);
  border: 1px solid var(--line);
}

.page-faq .ret-pill.is-on {
  color: var(--bg);
  background: var(--ret);
  border-color: var(--ret);
}

/* ---------- 联系面板 ---------- */
.page-faq .contact-panel {
  margin-top: 6px;
}

.page-faq .contact-panel p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-faq .contact-panel p:last-child {
  margin-bottom: 0;
}

.page-faq .contact-strong {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.4);
  word-break: break-all;
}

.page-faq .contact-strong.mono {
  font-family: var(--font-mono);
  color: var(--gold);
  border-bottom-color: rgba(245, 197, 66, 0.4);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
}

.page-faq .qa-item {
  border: 1px solid var(--line);
  background: var(--panel-deep);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .qa-item[open] {
  border-color: rgba(34, 211, 238, 0.45);
  background: var(--panel);
}

.page-faq .qa-item summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 48px 16px 18px;
  position: relative;
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--ink);
}

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

.page-faq .qa-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .qa-item[open] summary::after {
  content: "\2013";
}

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

.page-faq .qa-body {
  padding: 0 18px 18px;
}

.page-faq .qa-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-dim);
  max-width: 62ch;
}

.page-faq .qa-body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.35);
}

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

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

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
  }

  .page-faq .path-rail {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .path-chip {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 16px 14px;
    font-size: 14px;
  }
}

@media (max-width: 999px) {
  .page-faq .faq-index {
    order: -1;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-stats {
    gap: 10px 22px;
  }

  .page-faq .faq-stats .stat-num {
    font-size: 22px;
  }

  .page-faq .step-list > li {
    padding-left: 42px;
  }

  .page-faq .step-list > li::before {
    width: 28px;
    height: 28px;
    font-size: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .path-chip,
  .page-faq .faq-index-list a,
  .page-faq .qa-item {
    transition: none;
  }

  .page-faq .path-chip:hover,
  .page-faq .path-chip:focus-visible {
    transform: none;
  }
}