.page-faq {
  --faq-ix-w: 240px;
  --faq-tint-cyan: rgba(63, 224, 208, 0.07);
  --faq-tint-orange: rgba(255, 122, 47, 0.08);
  padding-bottom: 104px;
}

.page-faq .breadcrumb {
  margin-top: 28px;
}

.page-faq .breadcrumb-sep {
  margin: 0 8px;
  color: var(--line);
}

.page-faq .page-intro {
  padding-bottom: 44px;
}

.page-faq .page-title {
  max-width: 22ch;
}

.page-faq .page-lede {
  max-width: 68ch;
}

/* ---------- 布局：窄栏索引 + 宽区问答 ---------- */

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(200px, var(--faq-ix-w)) minmax(0, 1fr);
    gap: 52px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 32px;
  }
}

/* ---------- 问题目录 ---------- */

.page-faq .faq-index {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  padding: 20px 18px;
}

.page-faq .ix-label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

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

.page-faq .ix-link {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--muted);
  text-decoration: none;
  transition: color 160ms var(--ease), background 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .ix-link:hover,
.page-faq .ix-link:focus-visible {
  color: var(--text);
  background: var(--faq-tint-cyan);
  border-left-color: var(--cyan);
}

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

.page-faq .ix-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-faq .ix-text {
  font-size: 14px;
  line-height: 1.5;
}

.page-faq .ix-foot {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-faq .ix-foot .btn {
  display: flex;
  width: 100%;
  justify-content: center;
}

/* ---------- 问答流 ---------- */

.page-faq .faq-stream {
  display: grid;
  gap: 60px;
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 88px;
  min-width: 0;
}

.page-faq .group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-faq .group-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* ---------- 图片 ---------- */

.page-faq .faq-figure {
  margin: 0 0 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--layer);
}

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

.page-faq .faq-figure .figure-caption {
  border-top: 1px solid var(--line);
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 手风琴 ---------- */

.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--layer);
  overflow: hidden;
  transition: border-color 160ms var(--ease);
}

.page-faq .qa + .qa {
  margin-top: 10px;
}

.page-faq .qa[open] {
  border-color: rgba(63, 224, 208, 0.4);
}

.page-faq .qa > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--text);
  transition: background 160ms var(--ease);
}

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

.page-faq .qa > summary::marker {
  content: "";
}

.page-faq .qa > summary:hover {
  background: var(--faq-tint-cyan);
}

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

.page-faq .qa-mark {
  margin-left: auto;
  flex: none;
  align-self: center;
  position: relative;
  width: 18px;
  height: 18px;
}

.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  border-radius: 2px;
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

.page-faq .qa-mark::before {
  left: 0;
  top: 8px;
  width: 18px;
  height: 2px;
}

.page-faq .qa-mark::after {
  left: 8px;
  top: 0;
  width: 2px;
  height: 18px;
}

.page-faq .qa[open] .qa-mark::after {
  transform: rotate(90deg);
  opacity: 0;
}

.page-faq .qa-body {
  padding: 2px 20px 22px;
  border-top: 1px solid var(--line);
  animation: faqDrop 200ms var(--ease) both;
}

@keyframes faqDrop {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 步骤 ---------- */

.page-faq .steps {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .step {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-faq .step-num {
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0;
  color: var(--cyan);
  padding-top: 2px;
}

.page-faq .step-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .step-text strong {
  color: var(--cyan);
  font-weight: 600;
}

/* 导出分组切换为活力橙强调 */

.page-faq .faq-group--export .step-num {
  color: var(--orange);
}

.page-faq .faq-group--export .step-text strong {
  color: var(--orange);
}

.page-faq .faq-group--export .qa-mark::before,
.page-faq .faq-group--export .qa-mark::after {
  background: var(--orange);
}

.page-faq .faq-group--export .qa[open] {
  border-color: rgba(255, 122, 47, 0.42);
}

.page-faq .faq-group--export .qa > summary:hover {
  background: var(--faq-tint-orange);
}

/* ---------- 路径标签 ---------- */

.page-faq .path-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.page-faq .path-item {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 11px;
  white-space: nowrap;
}

.page-faq .path-sep {
  color: var(--cyan);
  font-size: 12px;
}

.page-faq .faq-group--export .path-sep {
  color: var(--orange);
}

/* ---------- 联系卡片 ---------- */

.page-faq .help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 20px;
}

@media (min-width: 600px) {
  .page-faq .help-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .help-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  padding: 18px;
}

.page-faq .help-key {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .help-val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-faq .help-note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .help-tail {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .help-tail a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 208, 0.4);
}

.page-faq .help-tail a:hover,
.page-faq .help-tail a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 无障碍与动效收敛 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-body {
    animation: none;
  }

  .page-faq .qa-mark::before,
  .page-faq .qa-mark::after,
  .page-faq .ix-link,
  .page-faq .qa > summary {
    transition: none;
  }
}
<<<END>>>