.page-faq {
  --faq-rail-width: 280px;
  --faq-panel-pad: clamp(20px, 3vw, 36px);
  display: block;
  padding-block: clamp(20px, 3vw, 40px) clamp(64px, 10vh, 120px);
  background: var(--navy-950);
  color: var(--ice-100);
}

.page-faq .nx-crumbs {
  margin-bottom: clamp(20px, 3vw, 36px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  border-bottom: 1px solid var(--grid-600);
  padding-bottom: clamp(28px, 4vw, 48px);
}

.page-faq .faq-hero__title {
  font-family: var(--f-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 12px 0 18px;
  max-width: 18ch;
  color: var(--ice-100);
}

.page-faq .faq-hero__lead {
  max-width: 66ch;
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--ice-60);
}

.page-faq .faq-figures {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--grid-600);
  border: 1px solid var(--grid-600);
}

.page-faq .faq-figures__cell {
  background: var(--navy-800);
  padding: clamp(16px, 2vw, 24px);
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 104px;
}

.page-faq .faq-figures__num {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--signal-500);
}

.page-faq .faq-figures__label {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--ice-60);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  margin-top: clamp(36px, 5vw, 64px);
}

/* ---------- 左侧问题目录 ---------- */
.page-faq .faq-rail {
  border: 1px solid var(--grid-600);
  background: var(--navy-800);
  padding: 18px 16px;
}

.page-faq .faq-rail__label {
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ice-60);
}

.page-faq .faq-toc {
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 10px 10px 10px 12px;
  border-left: 2px solid transparent;
  color: var(--ice-100);
  text-decoration: none;
  font-size: 0.9375rem;
  line-height: 1.45;
  transition: border-color var(--t-base), color var(--t-base), background-color var(--t-base);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  border-left-color: var(--cyan-400);
  background: var(--navy-950);
  color: var(--cyan-400);
  outline: none;
}

.page-faq .faq-toc__no {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--cyan-700);
  transition: color var(--t-base);
}

.page-faq .faq-toc__link:hover .faq-toc__no,
.page-faq .faq-toc__link:focus-visible .faq-toc__no {
  color: var(--signal-500);
}

/* ---------- 右侧内容列 ---------- */
.page-faq .faq-main {
  display: grid;
  gap: clamp(16px, 2vw, 24px);
  min-width: 0;
}

.page-faq .faq-block {
  border: 1px solid var(--grid-600);
  background: var(--navy-800);
  padding: var(--faq-panel-pad);
  scroll-margin-top: 104px;
  min-width: 0;
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--grid-600);
  margin-bottom: clamp(20px, 2.6vw, 28px);
}

.page-faq .faq-block__no {
  font-family: var(--f-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--signal-500);
  flex: none;
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(1.3125rem, 2.6vw, 1.75rem);
  line-height: 1.2;
  color: var(--ice-100);
}

.page-faq .faq-block__lead,
.page-faq .faq-block__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ice-60);
}

.page-faq .faq-block__lead {
  margin-bottom: clamp(20px, 2.6vw, 28px);
}

.page-faq .faq-block__text {
  margin-top: clamp(18px, 2.4vw, 26px);
}

/* ---------- 分栏：步骤 + 配图 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-faq .faq-steps::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 30px;
  bottom: 30px;
  width: 1px;
  background: var(--grid-600);
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 22px;
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step__no {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--cyan-700);
  background: var(--navy-800);
  color: var(--cyan-400);
  font-family: var(--f-mono);
  font-size: 0.875rem;
  font-weight: 700;
  transition: border-color var(--t-fast), background-color var(--t-fast), color var(--t-fast);
}

.page-faq .faq-step:hover .faq-step__no {
  border-color: var(--signal-500);
  background: var(--signal-500);
  color: var(--navy-950);
}

.page-faq .faq-step__title {
  margin: 8px 0 6px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ice-100);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ice-60);
}

.page-faq .faq-step a {
  color: var(--cyan-400);
}

/* ---------- 提示块 ---------- */
.page-faq .faq-note {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  border: 1px solid var(--orange-700);
  border-left-width: 2px;
  background: var(--navy-950);
  padding: 14px 16px;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--ice-60);
}

.page-faq .faq-note__label {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--signal-500);
}

.page-faq .faq-note a {
  color: var(--cyan-400);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-figure .nx-media {
  border: 1px solid var(--grid-600);
}

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

.page-faq .faq-figure--wide {
  margin-top: clamp(20px, 3vw, 32px);
}

/* ---------- 刷新节奏刻度 ---------- */
.page-faq .faq-ticks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid-600);
  border: 1px solid var(--grid-600);
}

.page-faq .faq-ticks__item {
  background: var(--navy-950);
  padding: 18px 20px;
  min-width: 0;
}

.page-faq .faq-ticks__value {
  display: flex;
  align-items: baseline;
  gap: 5px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.page-faq .faq-ticks__num {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--signal-500);
  overflow-wrap: anywhere;
}

.page-faq .faq-ticks__num--wide {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
}

.page-faq .faq-ticks__unit {
  font-size: 0.8125rem;
  color: var(--ice-60);
}

.page-faq .faq-ticks__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--ice-60);
}

/* ---------- 通知设置行 ---------- */
.page-faq .faq-rows {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--grid-600);
  border: 1px solid var(--grid-600);
}

.page-faq .faq-rows__item {
  background: var(--navy-950);
  padding: 16px 18px;
  display: grid;
  gap: 6px;
  min-width: 0;
}

.page-faq .faq-rows__name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--ice-100);
}

.page-faq .faq-rows__desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--ice-60);
}

.page-faq .faq-rows__flag {
  justify-self: start;
}

/* ---------- 常见问题折叠 ---------- */
.page-faq .faq-qa-list {
  display: grid;
  gap: 0;
}

.page-faq .faq-qa {
  border-top: 1px solid var(--grid-600);
  padding: 18px 0;
}

.page-faq .faq-qa:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-qa__q {
  margin: 0 0 10px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ice-100);
}

.page-faq .faq-qa__a p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ice-60);
}

.page-faq .faq-qa__toggle {
  margin-top: 10px;
}

/* ---------- 深入使用 ---------- */
.page-faq .faq-uses {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid-600);
  border: 1px solid var(--grid-600);
}

.page-faq .faq-uses__item {
  background: var(--navy-950);
  padding: 20px;
  min-width: 0;
}

.page-faq .faq-uses__num {
  display: block;
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--cyan-400);
  margin-bottom: 10px;
}

.page-faq .faq-uses__title {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ice-100);
}

.page-faq .faq-uses__desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--ice-60);
}

.page-faq .faq-uses__desc a {
  color: var(--cyan-400);
}

.page-faq .faq-foot {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding-top: clamp(16px, 2vw, 22px);
  border-top: 1px solid var(--grid-600);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ice-60);
}

.page-faq .faq-foot a {
  color: var(--cyan-400);
}

/* ---------- 断点 ---------- */
@media (max-width: 419px) {
  .page-faq .faq-steps::before {
    display: none;
  }

  .page-faq .faq-step {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 12px;
  }

  .page-faq .faq-step__no {
    width: 30px;
    height: 30px;
    font-size: 0.8125rem;
  }

  .page-faq .faq-step__title {
    margin-top: 4px;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-ticks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-rows__item {
    grid-template-columns: 160px minmax(0, 1fr) auto;
    gap: 18px;
    align-items: baseline;
  }

  .page-faq .faq-uses {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-width) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    max-height: calc(100vh - 128px);
    overflow-y: auto;
  }

  .page-faq .faq-toc__link {
    font-size: 0.9375rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc__link,
  .page-faq .faq-toc__no,
  .page-faq .faq-step__no {
    transition: none;
  }
}