.page-faq {
  --faq-block-gap: clamp(40px, 6vw, 76px);
  background: var(--night);
  color: var(--paper);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(31, 107, 82, 0.6), transparent 62%),
    linear-gradient(175deg, var(--night) 0%, var(--pitch) 100%);
  padding: clamp(22px, 5vw, 52px) 0 clamp(34px, 7vw, 74px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(26px, 5vw, 52px);
}

.page-faq .faq-hero-copy {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mist);
}

.page-faq .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 10px;
  color: rgba(174, 185, 182, 0.55);
}

.page-faq .breadcrumb-list a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 15ch;
  font-size: clamp(32px, 6.6vw, 66px);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -0.035em;
}

.page-faq .faq-hero .lead {
  margin: 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: rgba(244, 240, 230, 0.84);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-faq .faq-hero-media {
  margin: 0;
  aspect-ratio: 3 / 2;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: linear-gradient(160deg, var(--grass), var(--ink));
  box-shadow: 0 30px 64px rgba(6, 17, 20, 0.5);
}

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

/* 主体双栏 */
.page-faq .faq-body {
  padding: clamp(30px, 6vw, 72px) 0 clamp(46px, 8vw, 96px);
  background:
    linear-gradient(180deg, rgba(18, 59, 50, 0.45), transparent 320px),
    var(--night);
}

.page-faq .faq-layout {
  display: flex;
  flex-direction: column;
}

/* 分类胶囊 */
.page-faq .faq-cats {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 14px;
  margin-bottom: 26px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-cats-title {
  display: none;
}

.page-faq .faq-cat {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-soft);
  background: rgba(18, 59, 50, 0.72);
  color: var(--paper);
  font-size: 14px;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-faq .faq-cat-key {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--lime);
  transition: color 0.25s var(--ease);
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
  outline: none;
}

.page-faq .faq-cat:hover .faq-cat-key,
.page-faq .faq-cat:focus-visible .faq-cat-key {
  color: var(--ink);
}

.page-faq .faq-cat:focus-visible {
  box-shadow: 0 0 0 2px var(--night), 0 0 0 4px var(--lime);
}

/* 问答画布 */
.page-faq .faq-canvas {
  min-width: 0;
}

.page-faq .faq-block {
  position: relative;
  padding-top: 26px;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-block::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--lime) 0%, rgba(215, 255, 63, 0.32) 34%, rgba(215, 255, 63, 0) 100%);
}

.page-faq .faq-block + .faq-block {
  margin-top: var(--faq-block-gap);
}

.page-faq .faq-block h2 {
  margin: 8px 0 12px;
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-block-lead {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* 问答条目 */
.page-faq .qa-list {
  counter-reset: qa;
  border-top: 1px solid var(--line-soft);
}

.page-faq .qa {
  counter-increment: qa;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .qa summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  min-height: 44px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.9vw, 17px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  transition: color 0.2s var(--ease);
}

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

.page-faq .qa summary::before {
  content: counter(qa, decimal-leading-zero);
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--lime);
  transform: translateY(-1px);
}

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1;
  color: var(--grass);
  transition: color 0.2s var(--ease);
}

.page-faq .qa[open] summary::after {
  content: "–";
  color: var(--lime);
}

.page-faq .qa summary:hover,
.page-faq .qa[open] summary {
  color: var(--lime);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 4px;
  border-radius: var(--r-md);
}

.page-faq .qa-a {
  padding: 0 0 20px 30px;
}

.page-faq .qa-a p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 240, 230, 0.78);
}

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

.page-faq .qa-a a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .qa-a a:hover {
  color: var(--paper);
}

/* 小屏区的图文分栏 */
.page-faq .faq-split {
  display: grid;
  gap: 26px;
}

.page-faq .faq-media {
  margin: 0;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: linear-gradient(200deg, var(--grass), var(--ink));
}

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

/* 联系区 */
.page-faq .faq-contact-panel {
  padding: clamp(22px, 4vw, 36px);
  color: var(--ink);
}

.page-faq .faq-reach {
  display: grid;
  gap: 18px;
}

.page-faq .faq-reach-key {
  margin: 0 0 4px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--clay);
}

.page-faq .faq-reach-val {
  margin: 0;
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-reach-note {
  margin: 20px 0 22px;
  padding-top: 18px;
  border-top: 1px dashed rgba(46, 58, 61, 0.28);
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

.page-faq .faq-contact-panel .btn {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.page-faq .faq-backtop {
  margin: clamp(36px, 6vw, 64px) 0 0;
  text-align: center;
}

.page-faq .faq-backtop a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-backtop a:hover,
.page-faq .faq-backtop a:focus-visible {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
  outline: none;
}

@media (min-width: 720px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
  }

  .page-faq .faq-reach {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 32px;
  }

  .page-faq .faq-reach-item:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-faq .faq-cats {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    flex-direction: column;
    overflow: visible;
    margin-bottom: 0;
    padding: 4px 0 0;
    gap: 8px;
  }

  .page-faq .faq-cats-title {
    display: block;
    margin: 0 0 6px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    color: var(--mist);
  }

  .page-faq .faq-cat {
    width: 100%;
    justify-content: flex-start;
    white-space: normal;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: clamp(28px, 4vw, 44px);
    align-items: start;
  }

  .page-faq .faq-media {
    aspect-ratio: 3 / 4;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-layout {
    grid-template-columns: 270px minmax(0, 1fr);
  }

  .page-faq .qa-a {
    padding-left: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .qa summary,
  .page-faq .qa summary::after,
  .page-faq .faq-backtop a,
  .page-faq .breadcrumb-list a {
    transition: none;
  }
}