.page-faq {
  --faq-gap: clamp(44px, 6.5vw, 88px);
  display: block;
  background: var(--ink);
  color: var(--paper);
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--paper-faint);
}

.page-faq .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--fast), color var(--fast);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 44px) 0 clamp(38px, 6vw, 76px);
  border-bottom: var(--stroke) solid var(--line);
  background:
    radial-gradient(circle at 88% 10%, var(--purple-ghost), transparent 58%),
    radial-gradient(circle at 4% 90%, var(--cyan-ghost), transparent 52%);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-hero__text .eyebrow {
  display: inline-block;
  margin: 0 0 12px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 6.2vw, 60px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  max-width: 34em;
  margin: 0 0 26px;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--paper-dim);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.page-faq .faq-hero__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--paper-faint);
}

.page-faq .faq-hero__media {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero__media .media-frame {
  border: var(--stroke) solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero__media .media-frame__cap {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* ---------- 通用区块 ---------- */
.page-faq .faq-block {
  padding: var(--faq-gap) 0;
  border-bottom: var(--stroke) solid var(--line);
}

.page-faq .faq-block:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-block .section-head {
  margin-bottom: 14px;
}

.page-faq .faq-block__lead {
  max-width: 36em;
  margin: 0 0 30px;
  line-height: 1.85;
  color: var(--paper-dim);
}

/* ---------- 四步流程 ---------- */
.page-faq .flow {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .flow__item {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 26px;
}

.page-faq .flow__item::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 50px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--line), transparent);
}

.page-faq .flow__item:last-child {
  padding-bottom: 0;
}

.page-faq .flow__item:last-child::before {
  display: none;
}

.page-faq .flow__node {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: var(--stroke) solid var(--cyan);
  background: var(--ink);
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.05em;
  box-shadow: 4px 4px 0 rgba(39, 240, 227, 0.14);
  transition: background var(--fast), color var(--fast);
}

.page-faq .flow__item:hover .flow__node {
  background: var(--cyan);
  color: var(--ink);
}

.page-faq .flow__body {
  padding-top: 4px;
}

.page-faq .flow__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 800;
}

.page-faq .flow__body p {
  max-width: 40em;
  margin: 0 0 10px;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-faq .flow__state {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 5px 10px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

/* ---------- 积分与回放入口 ---------- */
.page-faq .entry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .entry-card {
  padding: 22px 20px 24px;
  border: var(--stroke) solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  transition: border-color var(--fast), background var(--fast);
}

.page-faq .entry-card:hover,
.page-faq .entry-card:focus-within {
  border-color: var(--cyan);
}

.page-faq .entry-card--orange {
  border-color: rgba(255, 107, 44, 0.4);
  background: linear-gradient(160deg, var(--orange-ghost), transparent 62%), var(--panel);
}

.page-faq .entry-card--cyan {
  border-color: rgba(39, 240, 227, 0.32);
  background: linear-gradient(160deg, var(--cyan-ghost), transparent 62%), var(--panel);
}

.page-faq .entry-card__tag {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .entry-card--orange .entry-card__tag {
  color: var(--orange);
}

.page-faq .entry-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
}

.page-faq .entry-card p {
  margin: 0 0 16px;
  line-height: 1.75;
  color: var(--paper-dim);
}

.page-faq .entry-card p:last-child {
  margin-bottom: 0;
}

/* ---------- 问答与索引 ---------- */
.page-faq .layout-aside {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .qa {
  border: var(--stroke) solid var(--line);
  background: var(--panel);
  margin-bottom: 12px;
  transition: border-color var(--fast), background var(--fast);
}

.page-faq .qa[open] {
  border-color: var(--cyan);
  background: linear-gradient(160deg, var(--cyan-ghost), transparent 55%), var(--panel);
}

.page-faq .qa summary {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  line-height: 1.65;
  transition: color var(--fast);
}

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

.page-faq .qa summary:hover,
.page-faq .qa summary:focus-visible {
  color: var(--cyan);
}

.page-faq .qa__idx {
  flex: none;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-faq .qa__a {
  padding: 0 18px 18px;
  border-top: 1px solid var(--line);
}

.page-faq .qa__a p {
  max-width: 40em;
  margin: 14px 0 0;
  line-height: 1.85;
  color: var(--paper-dim);
}

.page-faq .faq-side {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-faq .faq-side .toc {
  padding: 18px;
  border: var(--stroke) solid var(--line);
  background: var(--ink);
}

.page-faq .faq-side .toc__title {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-side .toc ul {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-side .toc a {
  display: block;
  padding: 7px 8px;
  font-size: 14px;
  color: var(--paper-dim);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--fast), border-color var(--fast), background var(--fast);
}

.page-faq .faq-side .toc a:hover,
.page-faq .faq-side .toc a:focus-visible,
.page-faq .faq-side .toc a[aria-current="true"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: var(--cyan-ghost);
}

.page-faq .faq-side__fig {
  margin: 0;
}

.page-faq .faq-side__fig .media-frame {
  border: var(--stroke) solid var(--line);
}

.page-faq .faq-side__fig .media-frame__cap {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--paper-faint);
}

/* ---------- 版本差异 ---------- */
.page-faq .version-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 22px;
}

.page-faq .version-col {
  position: relative;
  padding: 20px 18px 20px 26px;
  border: var(--stroke) solid var(--line);
  background: var(--panel);
}

.page-faq .version-col::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--purple);
}

.page-faq .version-col:last-child::before {
  background: var(--blue);
}

.page-faq .version-col__tag {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

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

.page-faq .version-list li {
  position: relative;
  padding-left: 18px;
  line-height: 1.75;
  color: var(--paper-dim);
}

.page-faq .version-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-faq .version-foot {
  max-width: 42em;
  margin: 0 0 20px;
  line-height: 1.85;
  color: var(--paper-dim);
}

/* ---------- 客服支持 ---------- */
.page-faq .support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .support-card .panel__head {
  padding: 12px 16px;
  border-bottom: var(--stroke) solid var(--line);
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .support-card .panel__body {
  padding: 16px;
}

.page-faq .support-card .panel__body p {
  margin: 0 0 12px;
  line-height: 1.75;
  color: var(--paper-dim);
}

.page-faq .support-card .panel__body p:last-child {
  margin-bottom: 0;
}

.page-faq .support-card a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(39, 240, 227, 0.4);
  word-break: break-all;
  transition: color var(--fast), border-color var(--fast);
}

.page-faq .support-card a:hover,
.page-faq .support-card a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-faq .support-card--accent {
  border-color: var(--orange);
  box-shadow: 8px 8px 0 rgba(255, 107, 44, 0.2);
}

.page-faq .support-card--accent .panel__head {
  color: var(--orange);
}

/* ---------- 自查清单 ---------- */
.page-faq .checklist {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .checklist__item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: var(--panel);
  transition: border-color var(--fast), background var(--fast);
}

.page-faq .checklist__item:hover,
.page-faq .checklist__item:focus-within {
  border-color: rgba(39, 240, 227, 0.55);
  background: linear-gradient(160deg, var(--cyan-ghost), transparent 70%), var(--panel);
}

.page-faq .checklist__box {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: var(--stroke) solid var(--line);
  background: var(--ink);
  transition: border-color var(--fast);
}

.page-faq .checklist__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(40deg);
  opacity: 0;
  transition: opacity var(--fast);
}

.page-faq .checklist__item:hover .checklist__box,
.page-faq .checklist__item:focus-within .checklist__box {
  border-color: var(--cyan);
}

.page-faq .checklist__item:hover .checklist__box::after,
.page-faq .checklist__item:focus-within .checklist__box::after {
  opacity: 1;
}

.page-faq .checklist__text {
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-faq .checklist__foot {
  max-width: 42em;
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--paper-faint);
}

.page-faq .checklist__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(39, 240, 227, 0.4);
  transition: color var(--fast), border-color var(--fast);
}

.page-faq .checklist__foot a:hover,
.page-faq .checklist__foot a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .entry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .entry-card--orange {
    grid-column: 1 / -1;
  }

  .page-faq .version-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .support-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .support-card--accent {
    grid-column: 1 / -1;
  }

  .page-faq .flow__item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 20px;
  }

  .page-faq .flow__node {
    width: 56px;
    height: 56px;
    font-size: 14px;
  }

  .page-faq .flow__item::before {
    left: 27px;
    top: 60px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }

  .page-faq .layout-aside {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 36px;
    align-items: start;
  }

  .page-faq .entry-grid {
    grid-template-columns: 1.15fr 1fr 1fr;
  }

  .page-faq .entry-card--orange {
    grid-column: auto;
  }

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

  .page-faq .support-card--accent {
    grid-column: auto;
  }

  .page-faq .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 16px;
  }
}