.page-faq {
  --faq-border: var(--line);
  background: var(--bg);
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-lead {
  position: relative;
  padding: 1.75rem 0 2.75rem;
  overflow: hidden;
  border-bottom: 1px solid var(--faq-border);
}
.page-faq .faq-lead::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 300px;
  background: linear-gradient(102deg, rgba(43, 231, 224, .14) 0%, rgba(43, 231, 224, .03) 42%, rgba(255, 122, 47, .11) 68%, rgba(255, 122, 47, 0) 88%);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 0 100%);
  pointer-events: none;
}
.page-faq .faq-lead .wrap {
  position: relative;
  z-index: 1;
}
.page-faq .faq-lead .crumbs {
  margin-bottom: 1.25rem;
}
.page-faq .faq-lead h1 {
  margin: .55rem 0 1rem;
  font-size: clamp(1.85rem, 6vw, 3.2rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.022em;
  max-width: 24ch;
}
.page-faq .faq-lead .lede {
  margin: 0;
  max-width: 64ch;
  color: var(--muted);
  font-size: var(--fs-17);
  line-height: 1.85;
}
.page-faq .faq-lead__links {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.6rem;
}

.page-faq .faq-map {
  margin: 2.5rem 0 0;
  background: var(--ink);
  border: 1px solid var(--faq-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-faq .faq-map .figure__media {
  display: block;
  aspect-ratio: auto;
  height: auto;
}
.page-faq .faq-map img {
  display: block;
  width: 100%;
  height: auto;
}
.page-faq .faq-map .figure__cap {
  padding: .7rem 1rem;
  border-top: 1px solid var(--faq-border);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
}

/* ---------- 问题卡片墙 ---------- */
.page-faq .faq-wall {
  padding: 2.75rem 0 3rem;
}
.page-faq .faq-wall__sub {
  margin: .5rem 0 0;
  color: var(--muted);
  font-size: var(--fs-14);
}
.page-faq .faq-wall__grid {
  display: grid;
  gap: .9rem;
  margin-top: 1.75rem;
}

.page-faq .faq-card {
  background: var(--ink);
  border: 1px solid var(--faq-border);
  border-left: 3px solid var(--card-accent, var(--cyan));
  border-radius: var(--radius);
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.page-faq .faq-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, .45);
}
.page-faq .faq-card[open] {
  background: #0D1526;
}
.page-faq .faq-card--search { --card-accent: #2BE7E0; }
.page-faq .faq-card--filter { --card-accent: #FF7A2F; }
.page-faq .faq-card--save   { --card-accent: #8CF5EF; }
.page-faq .faq-card--sched  { --card-accent: #4A6B8A; }
.page-faq .faq-card--device { --card-accent: #93A3B8; }
.page-faq .faq-card--fix    { --card-accent: #C74F13; }

.page-faq .faq-card__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: .6rem;
  padding: .95rem 1.05rem;
  cursor: pointer;
  list-style: none;
  color: var(--text);
  font-size: var(--fs-17);
  font-weight: 700;
  line-height: 1.5;
}
.page-faq .faq-card__q::-webkit-details-marker {
  display: none;
}
.page-faq .faq-card__q::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: var(--fs-22);
  line-height: 1;
  color: var(--card-accent, var(--cyan));
}
.page-faq .faq-card[open] .faq-card__q::after {
  content: "−";
}
.page-faq .faq-card__cat {
  flex: none;
  padding: .12rem .38rem;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  color: var(--card-accent, var(--cyan));
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  line-height: 1.4;
  white-space: nowrap;
}
.page-faq .faq-card__a {
  padding: .1rem 1.05rem 1.1rem;
  color: var(--muted);
  font-size: var(--fs-14);
  line-height: 1.8;
}
.page-faq .faq-card__a p {
  margin: 0;
}
.page-faq .faq-card[open] .faq-card__a {
  animation: faq-card-fade var(--t-mid) var(--ease);
}
@keyframes faq-card-fade {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- 目录区 ---------- */
.page-faq .faq-dir {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--faq-border);
  border-bottom: 1px solid var(--faq-border);
}
.page-faq .faq-dir__grid {
  display: grid;
  gap: 2rem;
}
.page-faq .faq-dir__main .section__title {
  margin: .45rem 0 0;
}
.page-faq .faq-dir .chips {
  margin: 1.15rem 0 1.5rem;
}
.page-faq .faq-dir__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-border);
}
.page-faq .faq-dir__list li {
  border-bottom: 1px solid var(--faq-border);
}
.page-faq .faq-dir__list a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .9rem;
  align-items: baseline;
  padding: .8rem .35rem;
  color: var(--text);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.page-faq .faq-dir__list a:hover {
  color: var(--cyan);
  background: rgba(43, 231, 224, .05);
}
.page-faq .faq-dir__no {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: .08em;
  color: var(--rule);
}
.page-faq .faq-dir__list a:hover .faq-dir__no {
  color: var(--cyan);
}
.page-faq .faq-dir__txt {
  font-size: var(--fs-17);
  line-height: 1.5;
}
.page-faq .faq-dir__aside {
  padding: 1.1rem 1.2rem 1.25rem;
  background: var(--ink);
  border: 1px solid var(--faq-border);
  border-radius: var(--radius);
  align-self: start;
}
.page-faq .faq-dir__aside .index-panel__list {
  list-style: none;
  margin: .8rem 0 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}
.page-faq .faq-dir__aside .index-panel__list a {
  color: var(--muted);
  font-size: var(--fs-14);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-faq .faq-dir__aside .index-panel__list a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-faq .faq-dir__note {
  margin: 1rem 0 0;
  padding-top: .85rem;
  border-top: 1px solid var(--faq-border);
  color: var(--muted);
  font-size: var(--fs-12);
  line-height: 1.75;
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-sec {
  padding: 2.75rem 0;
}
.page-faq .faq-sec + .faq-sec {
  border-top: 1px solid var(--faq-border);
}
.page-faq .faq-sec__head {
  display: flex;
  align-items: center;
  gap: .85rem;
  margin-bottom: 1rem;
}
.page-faq .faq-sec__no {
  flex: none;
  padding: .22rem .5rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
}
.page-faq .faq-sec__title {
  margin: 0;
  font-size: clamp(1.35rem, 3.6vw, 2rem);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.018em;
}
.page-faq .faq-sec__lede {
  margin: 0 0 1.75rem;
  max-width: 66ch;
  color: var(--muted);
  font-size: var(--fs-17);
  line-height: 1.85;
}
.page-faq .faq-sec__foot {
  margin: 1.75rem 0 0;
  padding-top: 1rem;
  border-top: 1px dashed var(--faq-border);
  color: var(--muted);
  font-size: var(--fs-14);
  line-height: 1.8;
}
.page-faq .faq-sec__foot a,
.page-faq .qa__a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  display: grid;
  gap: 1.2rem;
}
.page-faq .qa__item {
  padding-left: 1rem;
  border-left: 2px solid var(--faq-border);
  transition: border-color var(--t-fast) var(--ease);
}
.page-faq .qa__item:hover {
  border-left-color: var(--cyan);
}
.page-faq .qa__q {
  margin: 0 0 .35rem;
  font-size: var(--fs-17);
  font-weight: 700;
  line-height: 1.5;
}
.page-faq .qa__a {
  margin: 0;
  color: var(--muted);
  font-size: var(--fs-14);
  line-height: 1.85;
}

/* ---------- 三步上手 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-faq .steps__item {
  position: relative;
  padding: 1.1rem 1.15rem 1.25rem;
  background: var(--ink);
  border: 1px solid var(--faq-border);
  border-top: 2px solid var(--cyan);
  border-radius: var(--radius);
}
.page-faq .steps__no {
  display: block;
  margin-bottom: .45rem;
  font-family: var(--font-mono);
  font-size: var(--fs-32);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
  opacity: .7;
}
.page-faq .steps__title {
  margin: 0 0 .4rem;
  font-size: var(--fs-17);
  font-weight: 700;
}
.page-faq .steps__item p {
  margin: 0;
  color: var(--muted);
  font-size: var(--fs-14);
  line-height: 1.8;
}

/* ---------- 要点列表 ---------- */
.page-faq .ticks {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}
.page-faq .ticks li {
  position: relative;
  padding-left: 1.45rem;
  color: var(--muted);
  font-size: var(--fs-14);
  line-height: 1.8;
}
.page-faq .ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: .7rem;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 章节插图 ---------- */
.page-faq .faq-shot {
  margin: 2rem 0 0;
  background: var(--ink);
  border: 1px solid var(--faq-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-faq .faq-shot .figure__media {
  display: block;
  aspect-ratio: auto;
  height: auto;
}
.page-faq .faq-shot img {
  display: block;
  width: 100%;
  height: auto;
}
.page-faq .faq-shot .figure__cap {
  padding: .7rem 1rem;
  border-top: 1px solid var(--faq-border);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .05em;
}

/* ---------- 求助区 ---------- */
.page-faq .faq-help {
  padding: 4rem 0 4.75rem;
  border-top: 1px solid var(--faq-border);
  background: linear-gradient(180deg, rgba(43, 231, 224, .05), rgba(5, 7, 14, 0) 70%);
}
.page-faq .faq-help__inner {
  max-width: 620px;
}
.page-faq .faq-help__title {
  margin: .5rem 0 1rem;
  font-size: clamp(1.6rem, 4.4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.022em;
}
.page-faq .faq-help__inner p {
  margin: 0 0 1.75rem;
  color: var(--muted);
  font-size: var(--fs-17);
  line-height: 1.85;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-wall__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }
  .page-faq .ticks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 1.5rem;
  }
}

@media (min-width: 820px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem;
  }
  .page-faq .qa--two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.4rem 2rem;
  }
  .page-faq .qa--three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.4rem 1.6rem;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-lead {
    padding: 2.25rem 0 3.5rem;
  }
  .page-faq .faq-dir__grid {
    grid-template-columns: minmax(0, 2.1fr) minmax(0, 1fr);
    gap: 3rem;
  }
  .page-faq .faq-sec {
    padding: 3.5rem 0;
  }
  .page-faq .faq-wall {
    padding: 3.75rem 0 4rem;
  }
  .page-faq .faq-dir {
    padding: 3rem 0 3.5rem;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-wall__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .qa__item,
  .page-faq .faq-dir__list a {
    transition: none;
  }
  .page-faq .faq-card:hover {
    transform: none;
  }
  .page-faq .faq-card[open] .faq-card__a {
    animation: none;
  }
}