.page-faq {
  --faq-gap: clamp(18px, 3vw, 34px);
  --faq-card-bg: linear-gradient(180deg, rgba(20, 47, 79, .92) 0%, rgba(13, 36, 64, .92) 100%);
  padding-bottom: calc(var(--dock-space) + 40px);
  color: var(--mist);
}

.page-faq .breadcrumb {
  padding-top: 18px;
  font-size: 13px;
  color: var(--steel);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: var(--faq-gap);
  padding: clamp(28px, 5vw, 62px) 0 clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 calc(-1 * var(--gutter));
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: .4;
  -webkit-mask-image: radial-gradient(115% 95% at 8% 0%, #000 0%, rgba(0, 0, 0, .18) 60%, transparent 88%);
  mask-image: radial-gradient(115% 95% at 8% 0%, #000 0%, rgba(0, 0, 0, .18) 60%, transparent 88%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-title);
  font-size: clamp(30px, 6vw, 52px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--mist);
}

.page-faq .faq-hero__text {
  margin: 0 0 24px;
  max-width: 60ch;
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.8;
  color: var(--steel);
}

.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-hero__facts {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0 0 0 18px;
  border-left: 2px solid var(--coral);
  align-self: end;
}

.page-faq .faq-hero__facts > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 9px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-hero__facts dt {
  font-size: 15px;
  color: var(--steel);
}

.page-faq .faq-hero__facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 600;
  color: var(--cyan);
  white-space: nowrap;
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.65fr) minmax(250px, .85fr);
    align-items: end;
    gap: clamp(28px, 5vw, 64px);
  }
}

/* ---------- 索引 + 内容双栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-index {
  border-top: 1px solid var(--line-strong);
  padding-top: 14px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-editorial);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--steel);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  border-radius: var(--radius);
  color: var(--mist);
  font-size: 15px;
  text-decoration: none;
  transition: border-color .2s var(--ease), background-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-left-color: var(--cyan);
  background-color: rgba(0, 229, 255, .08);
  color: var(--cyan);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--steel);
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(24px, 4vw, 58px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

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

/* ---------- 章节骨架 ---------- */
.page-faq .faq-block {
  border-top: 1px solid var(--line-soft);
  padding: clamp(24px, 4vw, 44px) 0;
  scroll-margin-top: calc(var(--header-h) + 22px);
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}

.page-faq .faq-block__num {
  flex: none;
  padding: 3px 8px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background-color: rgba(0, 229, 255, .07);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan);
}

.page-faq .faq-block__head h2 {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-faq .faq-note {
  margin: 0 0 22px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--steel);
}

/* ---------- 步骤卡 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-step {
  padding: 18px 18px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--faq-card-bg);
  box-shadow: 0 10px 26px rgba(4, 12, 24, .35);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-step:hover,
.page-faq .faq-step:focus-within {
  border-color: rgba(0, 229, 255, .6);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.page-faq .faq-step__num {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--coral);
}

.page-faq .faq-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 700;
  color: var(--mist);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--steel);
}

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

/* ---------- 图片容器 ---------- */
.page-faq .media-figure {
  margin: 0;
}

.page-faq .media-figure .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .media-caption {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 双视图卡片 ---------- */
.page-faq .view-cards {
  display: grid;
  gap: 12px;
  margin-bottom: 22px;
}

.page-faq .view-card {
  padding: 20px;
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--cyan);
  border-radius: var(--radius);
  background: var(--faq-card-bg);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .view-card--alt {
  border-top-color: var(--coral);
}

.page-faq .view-card:hover {
  transform: translateY(-2px);
}

.page-faq .view-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-size: 19px;
  font-weight: 800;
  color: var(--mist);
}

.page-faq .view-card p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--steel);
}

.page-faq .view-card__use {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--cyan) !important;
}

.page-faq .view-card--alt .view-card__use {
  color: var(--coral) !important;
}

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

/* ---------- 问答折叠 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
}

.page-faq .qa {
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--faq-card-bg);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .qa:hover {
  border-color: rgba(0, 229, 255, .45);
}

.page-faq .qa[open] {
  border-left-color: var(--cyan);
  background-color: rgba(20, 47, 79, .95);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--mist);
  transition: color .2s var(--ease);
}

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

.page-faq .qa__q:hover {
  color: var(--cyan);
}

.page-faq .qa__mark {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 6px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform .2s var(--ease);
}

.page-faq .qa[open] .qa__mark {
  transform: rotate(-135deg);
}

.page-faq .qa__a {
  padding: 0 18px 18px 39px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--steel);
}

.page-faq .qa__a p {
  margin: 0 0 10px;
}

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

/* ---------- 表格 ---------- */
.page-faq .faq-table-wrap {
  margin-bottom: 22px;
  overflow-x: auto;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background-color: rgba(13, 36, 64, .7);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
}

.page-faq .faq-table caption {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  font-family: var(--font-editorial);
  font-size: 15px;
  font-weight: 600;
  color: var(--steel);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-table thead th {
  background-color: rgba(0, 229, 255, .06);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-faq .faq-table tbody th {
  font-size: 16px;
  font-weight: 700;
  color: var(--mist);
  white-space: nowrap;
}

.page-faq .faq-table tbody td {
  font-size: 16px;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 设备规格 ---------- */
.page-faq .faq-block--split {
  display: grid;
  gap: clamp(20px, 3.5vw, 40px);
}

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

.page-faq .spec-grid {
  display: grid;
  gap: 10px;
  margin-bottom: 22px;
}

.page-faq .spec {
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--faq-card-bg);
}

.page-faq .spec__k {
  display: block;
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-faq .spec__v {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--green);
}

@media (min-width: 640px) {
  .page-faq .spec-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .media-figure--tall {
  max-width: 420px;
}

@media (min-width: 980px) {
  .page-faq .faq-block--split {
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, .85fr);
    align-items: start;
  }

  .page-faq .media-figure--tall {
    max-width: none;
  }
}

/* ---------- 反馈卡 ---------- */
.page-faq .faq-dock-card {
  padding: clamp(20px, 3vw, 30px);
  margin-bottom: 22px;
  border: 1px solid rgba(255, 107, 74, .45);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(255, 107, 74, .15) 0%, rgba(13, 36, 64, .94) 62%);
}

.page-faq .faq-dock-card h3 {
  margin: 0 0 14px;
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 800;
  color: var(--mist);
}

.page-faq .faq-dock-list {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-faq .faq-dock-list li {
  position: relative;
  padding-left: 18px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-dock-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 2px;
  background-color: var(--coral);
}

.page-faq .faq-dock-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

/* ---------- 继续浏览 ---------- */
.page-faq .faq-next {
  border-top: 1px solid var(--line-strong);
  padding: clamp(24px, 4vw, 40px) 0 8px;
}

.page-faq .faq-next__title {
  margin: 0 0 16px;
  font-family: var(--font-editorial);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--steel);
}

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

.page-faq .faq-next__list a {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color .2s var(--ease), background-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-next__list a:hover,
.page-faq .faq-next__list a:focus-visible {
  border-color: var(--cyan);
  background-color: rgba(0, 229, 255, .07);
  transform: translateY(-2px);
}

.page-faq .faq-next__k {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-faq .faq-next__d {
  font-size: 15px;
  line-height: 1.7;
  color: var(--steel);
}

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

/* ---------- 正文链接 ---------- */
.page-faq .faq-body a:not(.btn) {
  color: var(--cyan);
  text-underline-offset: 3px;
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }

  .page-faq .faq-step:hover,
  .page-faq .view-card:hover,
  .page-faq .faq-next__list a:hover {
    transform: none;
  }
}