.page-faq {
  --faq-side: 264px;
  --faq-gut: 52px;
  --faq-anchor-gap: 96px;
  padding-top: 116px;
  padding-bottom: 104px;
  color: var(--text);
  background:
    radial-gradient(900px 520px at 92% -6%, rgba(53, 240, 192, 0.08), transparent 62%),
    radial-gradient(720px 460px at 2% 46%, rgba(31, 74, 61, 0.34), transparent 70%),
    var(--ink);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  margin-bottom: 26px;
}

/* ---------- 框景首屏 ---------- */
.page-faq .faq-hero {
  padding-bottom: 34px;
}

.page-faq .faq-frame {
  position: relative;
  padding: 36px 22px 32px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, rgba(22, 48, 42, 0.94) 0%, rgba(10, 20, 16, 0.97) 64%);
  overflow: hidden;
}

.page-faq .faq-frame::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px dashed rgba(53, 240, 192, 0.16);
  border-radius: calc(var(--r-lg) - 10px);
  pointer-events: none;
}

.page-faq .faq-frame::after {
  content: "";
  position: absolute;
  top: 0;
  left: 40px;
  width: 96px;
  height: 5px;
  background-image: repeating-linear-gradient(90deg, var(--neon) 0 2px, transparent 2px 12px);
  opacity: 0.85;
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-faq .faq-title {
  font-family: var(--font-display);
  font-size: clamp(34px, 7vw, 68px);
  font-weight: 800;
  line-height: 1.03;
  letter-spacing: -0.02em;
  margin: 10px 0 20px;
  color: var(--text);
}

.page-faq .faq-lead {
  max-width: 64ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-note-col {
  display: none;
}

/* ---------- 快捷跳转 ---------- */
.page-faq .faq-jump {
  margin-top: 30px;
}

.page-faq .faq-jump-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(22, 48, 42, 0.55);
  color: var(--muted);
  font-size: 13px;
  line-height: 1;
  text-decoration: none;
  transition: color 0.22s var(--ease), background 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-faq .faq-chip-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--neon);
  transition: color 0.22s var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  color: var(--ink);
  background: var(--neon);
  border-color: var(--neon);
}

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  margin-top: 54px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-index-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-index-link {
  display: flex;
  gap: 12px;
  padding: 13px 4px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-index-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(53, 240, 192, 0.5);
  padding-top: 1px;
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--neon);
}

/* ---------- 问答块 ---------- */
.page-faq .faq-qa {
  padding-top: 34px;
  margin-bottom: 38px;
  border-top: 1px solid var(--line);
  scroll-margin-top: var(--faq-anchor-gap);
}

.page-faq .faq-answers > .faq-qa:first-child {
  padding-top: 0;
  border-top: none;
}

.page-faq .faq-answers > .faq-qa:last-child {
  margin-bottom: 0;
}

.page-faq .faq-qa-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-faq .faq-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--neon);
}

.page-faq .faq-qa-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-qa-body p {
  max-width: 68ch;
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
}

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

.page-faq .faq-qa-body a,
.page-faq .faq-support-note a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 192, 0.35);
}

.page-faq .faq-qa-body a:hover,
.page-faq .faq-support-note a:hover {
  border-bottom-color: var(--neon);
}

/* ---------- 章节内左右分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-faq .faq-shot {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--board);
}

.page-faq .faq-figure {
  margin: 0 0 26px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--board);
}

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

/* ---------- 内联步骤条 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 22px 0 20px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-step {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.page-faq .faq-step-num {
  flex: none;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--turf);
  border-radius: 50%;
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--neon);
}

.page-faq .faq-step-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  padding-top: 3px;
}

/* ---------- 字段说明表 ---------- */
.page-faq .faq-table-wrap {
  margin: 24px 0 22px;
}

.page-faq .data-table caption {
  padding-bottom: 10px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-field {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--neon-soft);
  white-space: nowrap;
}

/* ---------- 更新节奏统计块 ---------- */
.page-faq .faq-stat-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 24px 0 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--line);
  overflow: hidden;
}

.page-faq .faq-stat {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding: 20px 18px;
  background: var(--board);
}

.page-faq .faq-stat-value {
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--neon);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-stat-unit {
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-stat-label {
  flex-basis: 100%;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 折叠速答 ---------- */
.page-faq .faq-fold {
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--board);
  transition: border-color 0.22s var(--ease);
}

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

.page-faq .faq-fold[open] {
  border-left: 2px solid var(--neon);
  border-color: rgba(53, 240, 192, 0.28);
  border-left-color: var(--neon);
}

.page-faq .faq-fold-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
}

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

.page-faq .faq-fold-summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-faq .faq-fold-icon {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-faq .faq-fold-icon::before,
.page-faq .faq-fold-icon::after {
  content: "";
  position: absolute;
  background: var(--neon);
  transition: transform 0.24s var(--ease), opacity 0.24s var(--ease);
}

.page-faq .faq-fold-icon::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-fold-icon::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-fold[open] .faq-fold-icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-fold-body {
  padding: 0 18px 18px;
  border-top: 1px solid rgba(58, 74, 68, 0.6);
  padding-top: 14px;
}

.page-faq .faq-fold-body p {
  max-width: 66ch;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-fold-body a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 192, 0.35);
}

/* ---------- 联系块 ---------- */
.page-faq .faq-support {
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--neon);
  border-radius: var(--r-md);
  background: linear-gradient(142deg, var(--board) 0%, rgba(16, 32, 26, 0.9) 100%);
}

.page-faq .faq-support > p {
  max-width: 68ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-mail-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 18px 0 14px;
}

.page-faq .faq-mail {
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.01em;
  color: var(--neon);
  word-break: break-all;
}

.page-faq .faq-support-note {
  max-width: 68ch;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-stat-row {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
    gap: 36px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    position: relative;
    margin-top: 26px;
  }

  .page-faq .faq-steps::before {
    content: "";
    position: absolute;
    top: 14px;
    left: 14px;
    right: 14px;
    height: 1px;
    background: var(--line);
  }

  .page-faq .faq-step {
    position: relative;
    z-index: 1;
    flex-direction: column;
    gap: 12px;
    padding-right: 26px;
  }

  .page-faq .faq-step-text {
    padding-top: 0;
  }
}

@media (min-width: 1000px) {
  .page-faq {
    padding-top: 132px;
  }

  .page-faq .faq-frame {
    padding: 58px 54px 50px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1fr) 116px;
    gap: 44px;
  }

  .page-faq .faq-note-col {
    display: block;
    padding-top: 14px;
  }

  .page-faq .faq-note-vert {
    display: block;
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    color: var(--muted);
    opacity: 0.75;
  }

  .page-faq .faq-body {
    grid-template-columns: var(--faq-side) minmax(0, 1fr);
    gap: var(--faq-gut);
    margin-top: 66px;
  }

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

/* ---------- 窄屏 ---------- */
@media (max-width: 999px) {
  .page-faq .faq-index-title {
    font-size: 10px;
  }

  .page-faq .faq-index-list {
    display: flex;
    gap: 8px;
    padding-bottom: 8px;
    border-top: none;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }

  .page-faq .faq-index-item {
    flex: none;
    border-bottom: none;
  }

  .page-faq .faq-index-link {
    align-items: center;
    padding: 8px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(22, 48, 42, 0.5);
    white-space: nowrap;
  }

  .page-faq .faq-index-num {
    padding-top: 0;
  }
}

@media (max-width: 767px) {
  .page-faq {
    padding-top: 92px;
    padding-bottom: 72px;
  }

  .page-faq .faq-frame {
    padding: 30px 18px 28px;
    border-radius: var(--r-md);
  }

  .page-faq .faq-frame::before {
    inset: 8px;
    border-radius: calc(var(--r-md) - 4px);
  }

  .page-faq .faq-jump-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
  }

  .page-faq .faq-chip {
    flex: none;
  }

  .page-faq .faq-stat-value {
    font-size: 34px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-index-link,
  .page-faq .faq-fold,
  .page-faq .faq-fold-icon::before,
  .page-faq .faq-fold-icon::after {
    transition: none;
  }
}