.page-faq {
  --faq-hair: rgba(159, 179, 174, 0.22);
  --faq-hair-soft: rgba(159, 179, 174, 0.12);
  --faq-glass: rgba(56, 232, 200, 0.06);
  display: block;
  padding-bottom: 64px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 22px 0 32px;
  border-bottom: 1px solid var(--faq-hair);
}
.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-bottom: 16px;
}
.page-faq .faq-hero__ver {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-pill);
  padding: 3px 11px;
  background: var(--faq-glass);
}
.page-faq .faq-hero h1 {
  margin: 0;
  color: var(--paper);
  font-size: clamp(27px, 6.2vw, 44px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  font-weight: 700;
  max-width: 22ch;
}
.page-faq .faq-hero .lede {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}
.page-faq .faq-hero__stats {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--faq-hair-soft);
  border: 1px solid var(--faq-hair-soft);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.page-faq .faq-hero__stats li {
  background: var(--ink);
  padding: 14px 16px;
}
.page-faq .faq-hero__stats b {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  font-weight: 500;
  color: var(--cyan);
  letter-spacing: -0.01em;
}
.page-faq .faq-hero__stats span {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 外壳 ---------- */
.page-faq .faq-shell {
  padding-top: 30px;
}
.page-faq .faq-rail {
  margin-bottom: 26px;
}
.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-rail__list::-webkit-scrollbar {
  display: none;
}
.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--faq-hair);
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
              background var(--dur) var(--ease);
}
.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  opacity: 0.8;
}
.page-faq .faq-rail__link:hover {
  color: var(--paper);
  border-color: var(--line-cyan);
}
.page-faq .faq-rail__link.is-active {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-flow {
  min-width: 0;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-bottom: 46px;
}
.page-faq .faq-group:last-child {
  margin-bottom: 0;
}
.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--faq-hair);
  margin-bottom: 18px;
}
.page-faq .faq-group__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}
.page-faq .faq-group__head h2 {
  margin: 0;
  font-size: clamp(19px, 3.4vw, 26px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-faq .faq-group__note {
  margin-left: auto;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}
.page-faq .faq-group__lede {
  margin: 0 0 18px;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  background: var(--ink-2);
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-faq .qa + .qa {
  margin-top: 10px;
}
.page-faq .qa[open] {
  border-color: var(--line-cyan);
  background: var(--ink-3);
}
.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 11px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
}
.page-faq .qa__q::-webkit-details-marker {
  display: none;
}
.page-faq .qa__q::marker {
  content: "";
}
.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.2;
  color: var(--cyan);
}
.page-faq .qa[open] .qa__q::after {
  content: "–";
}
.page-faq .qa__tag {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--amber);
  border: 1px solid rgba(245, 194, 74, 0.34);
  border-radius: var(--radius-pill);
  padding: 2px 8px;
  position: relative;
  top: -1px;
}
.page-faq .qa__text {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0;
}
.page-faq .qa__a {
  padding: 0 18px 18px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}
.page-faq .qa__a p {
  margin: 0 0 10px;
}
.page-faq .qa__a p:last-child {
  margin-bottom: 0;
}
.page-faq .qa__a a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--line-cyan);
}
.page-faq .qa[open] .qa__a {
  animation: faq-fade 180ms var(--ease);
}
@keyframes faq-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 22px;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
  filter: saturate(0.88) brightness(0.84);
}
.page-faq .faq-figure__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--muted);
}
.page-faq .faq-figure--portrait {
  max-width: 300px;
}

/* ---------- 新旧对照 ---------- */
.page-faq .compare {
  margin-top: 4px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-2);
}
.page-faq .compare__row {
  padding: 16px 18px;
  border-top: 1px solid var(--faq-hair-soft);
}
.page-faq .compare__row:first-child {
  border-top: 0;
}
.page-faq .compare__key {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.page-faq .compare__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.page-faq .compare__col p {
  margin: 7px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}
.page-faq .compare__ver {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  background: rgba(242, 234, 217, 0.08);
  border: 1px solid var(--faq-hair);
  color: var(--muted);
}
.page-faq .compare__col--new .compare__ver {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

/* ---------- 排查步骤 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}
.page-faq .steps > li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--faq-hair-soft);
}
.page-faq .steps > li:last-child {
  border-bottom: 1px solid var(--faq-hair-soft);
}
.page-faq .steps__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  padding-top: 2px;
}
.page-faq .steps__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}
.page-faq .steps__expect {
  display: inline-block;
  margin-top: 8px;
  font-style: normal;
  font-size: 13px;
  line-height: 1.6;
  color: var(--cyan-soft);
  background: var(--faq-glass);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
}

/* ---------- 常用入口清单 ---------- */
.page-faq .shortcuts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--faq-hair-soft);
  border: 1px solid var(--faq-hair-soft);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-faq .shortcut {
  background: var(--ink-2);
  padding: 13px 16px;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
}
.page-faq .shortcut__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}
.page-faq .shortcut__name {
  display: block;
  color: var(--paper);
  font-size: 15px;
  line-height: 1.5;
}
.page-faq .shortcut__note {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 转人工 ---------- */
.page-faq .faq-cta {
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line-cyan);
  background: linear-gradient(180deg, rgba(56, 232, 200, 0.09), rgba(56, 232, 200, 0.015));
  backdrop-filter: blur(6px);
}
.page-faq .faq-cta__lede {
  margin: 0 0 16px;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--paper);
}
.page-faq .faq-cta__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}
.page-faq .faq-cta__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 9px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}
.page-faq .faq-cta__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
}
.page-faq .faq-cta__contact {
  padding-top: 16px;
  border-top: 1px solid var(--faq-hair);
}
.page-faq .faq-cta__contact p {
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-faq .faq-cta__contact p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-cta__contact .mono {
  color: var(--cyan-soft);
  font-size: 15px;
}
.page-faq .faq-cta__more {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}
.page-faq .faq-cta__more a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--line-cyan);
}

/* ---------- 平板 / 桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .compare__cols {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-group__lede {
    font-size: 16px;
  }
  .page-faq .shortcuts {
    grid-template-columns: 1fr 1fr;
  }
  .page-faq .faq-troubleshoot__layout {
    display: grid;
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }
  .page-faq .faq-figure--portrait {
    max-width: none;
    margin-bottom: 0;
    position: sticky;
    top: 104px;
  }
  .page-faq .steps {
    margin-top: 0;
  }
  .page-faq .steps > li:first-child {
    border-top: 0;
    padding-top: 0;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-shell {
    display: grid;
    grid-template-columns: 228px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }
  .page-faq .faq-rail {
    position: sticky;
    top: 108px;
    margin-bottom: 0;
  }
  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 1px;
    overflow: visible;
    border-left: 1px solid var(--faq-hair);
    padding: 0;
  }
  .page-faq .faq-rail__link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 10px 12px;
    margin-left: -1px;
    white-space: normal;
    line-height: 1.5;
  }
  .page-faq .faq-rail__link:hover {
    background: var(--faq-glass);
  }
  .page-faq .faq-rail__link.is-active {
    background: var(--faq-glass);
    border-left-color: var(--cyan);
    color: var(--paper);
  }
  .page-faq .faq-group {
    margin-bottom: 58px;
  }
  .page-faq .compare__row {
    padding: 18px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .faq-rail__link {
    transition: none;
  }
  .page-faq .qa[open] .qa__a {
    animation: none;
  }
}