.page-faq {
  --faq-hair: rgba(155, 217, 232, 0.16);
  --faq-tile: rgba(27, 39, 72, 0.6);
  --faq-sink: rgba(7, 12, 24, 0.38);
  padding-bottom: clamp(36px, 6vw, 86px);
  overflow-x: clip;
}

.page-faq .faq-crumbs-wrap {
  padding-block: clamp(14px, 2vw, 22px) 0;
}

.page-faq .faq-crumbs-wrap .breadcrumbs {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--text-soft);
}

.page-faq .faq-crumbs-wrap .breadcrumbs a {
  color: var(--haze);
  text-decoration: none;
}

.page-faq .faq-crumbs-wrap .breadcrumbs a:hover {
  color: var(--mint);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
  padding-block: clamp(20px, 3vw, 38px) clamp(28px, 4vw, 54px);
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -18% -12% auto -12%;
  height: 340px;
  background: radial-gradient(closest-side, rgba(60, 242, 192, 0.15), transparent 72%);
  z-index: -1;
  pointer-events: none;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(29px, 4.4vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 12px 0 16px;
  max-width: 13em;
}

.page-faq .faq-hero .lede {
  max-width: 44ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 2.6vw, 34px);
  margin: 24px 0;
  padding: 16px 0;
  border-top: 1px solid var(--faq-hair);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 92px;
}

.page-faq .faq-stat .data-num {
  font-family: var(--font-data);
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1;
  color: var(--mint);
  letter-spacing: -0.02em;
}

.page-faq .faq-stat .stat-label {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--text-soft);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero-visual {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.page-faq .faq-hero-visual .img-frame {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--faq-sink);
}

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

.page-faq .img-caption {
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--text-soft);
}

@media (min-width: 880px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: center;
  }
}

/* ---------- 热门磁贴 ---------- */
.page-faq .faq-section-note {
  margin: 8px 0 0;
  font-size: 14px;
  color: var(--text-soft);
}

.page-faq .faq-tiles {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-tiles a {
  display: grid;
  gap: 6px;
  height: 100%;
  padding: 18px 18px 20px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-md);
  background: var(--faq-tile);
  color: var(--text);
  text-decoration: none;
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-tiles a:hover,
.page-faq .faq-tiles a:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(60, 242, 192, 0.5);
  background: rgba(27, 39, 72, 0.86);
}

.page-faq .tile-num {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-faq .tile-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .tile-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-soft);
}

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

@media (min-width: 1000px) {
  .page-faq .faq-tiles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 主体：问答 + 侧栏助手 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  align-items: start;
  padding-block: clamp(30px, 4vw, 46px) 0;
}

.page-faq .faq-main {
  display: grid;
  gap: clamp(18px, 2.4vw, 26px);
  min-width: 0;
}

.page-faq .faq-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 2px 10px;
  scrollbar-width: thin;
}

.page-faq .faq-rail .filter-btn {
  flex: 0 0 auto;
  white-space: nowrap;
  font-size: 13px;
}

.page-faq .faq-list {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-faq .faq-group {
  min-width: 0;
  padding: clamp(16px, 2.2vw, 26px);
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-lg);
  background: var(--faq-tile);
  scroll-margin-top: 96px;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 4px;
}

.page-faq .faq-group-index {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--mint);
}

.page-faq .faq-group h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-item {
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-group details:first-of-type {
  border-top: 0;
}

.page-faq .faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 15px 36px 15px 0;
  font-size: clamp(15px, 1.6vw, 16.5px);
  font-weight: 500;
  line-height: 1.55;
  color: var(--text);
  scroll-margin-top: 96px;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-data);
  font-size: 18px;
  line-height: 1;
  color: var(--haze);
  transition: color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-item summary:hover::after,
.page-faq .faq-item summary:focus-visible::after {
  color: var(--mint);
}

.page-faq .faq-item[open] summary {
  color: var(--paper);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  color: var(--mint);
  transform: translateY(-50%) rotate(180deg);
}

.page-faq .faq-answer {
  padding: 0 0 16px;
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-soft);
}

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

.page-faq .faq-answer a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-answer .hl {
  font-family: var(--font-data);
  font-weight: 600;
  color: var(--mint);
}

.page-faq .faq-figure {
  margin: 18px 0 0;
}

.page-faq .faq-figure .img-frame {
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--faq-hair);
  background: var(--faq-sink);
}

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

.page-faq .faq-figure .img-caption {
  margin-top: 8px;
}

/* ---------- 侧栏 ---------- */
.page-faq .faq-aside {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-faq .faq-assistant {
  padding: clamp(18px, 2vw, 24px);
  border-radius: var(--r-lg);
  background: var(--glass-fill-strong);
  border: 1px solid var(--line);
}

.page-faq .faq-assistant h2 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.35;
  color: var(--paper);
}

.page-faq .faq-device-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.page-faq .faq-device-bar .filter-btn {
  font-size: 12.5px;
}

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

.page-faq .device-item {
  padding: 12px 13px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-sm);
  background: var(--faq-sink);
}

.page-faq .device-name {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .device-item p {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-soft);
}

.page-faq .assistant-foot {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--text-soft);
}

.page-faq .assistant-foot a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-aside-card {
  padding: 18px 18px 20px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
}

.page-faq .faq-aside-card h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--paper);
}

.page-faq .faq-aside-card p {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-soft);
}

@media (min-width: 1060px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 336px;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 92px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-main {
    grid-template-columns: 156px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
    flex-direction: column;
    overflow: visible;
    padding: 0 0 0 12px;
    border-left: 1px solid var(--faq-hair);
  }

  .page-faq .faq-rail .filter-btn {
    width: 100%;
    text-align: left;
  }
}

/* ---------- 底部入口 ---------- */
.page-faq .faq-links {
  padding-top: clamp(34px, 4.6vw, 60px);
}

.page-faq .faq-link-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-link-list a {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--red);
  border-radius: var(--r-sm);
  background: var(--faq-sink);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-link-list a:hover,
.page-faq .faq-link-list a:focus-visible {
  color: var(--mint);
  border-left-color: var(--mint);
}

@media (min-width: 760px) {
  .page-faq .faq-link-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tiles a,
  .page-faq .faq-item summary::after,
  .page-faq .faq-link-list a {
    transition: none;
  }

  .page-faq .faq-tiles a:hover {
    transform: none;
  }
}
<<<END>>>