.page-faq {
  background: var(--color-warm);
}

/* ===== 01 首屏深色区 ===== */
.page-faq .faq-hero {
  background: var(--color-deep);
  color: var(--text-invert);
  padding: 20px 0 0;
  position: relative;
}
.page-faq .faq-hero::after {
  content: "";
  display: block;
  height: 6px;
  margin-top: 36px;
  background: linear-gradient(90deg, var(--color-orange) 0 25%, var(--color-yellow) 25% 50%, var(--color-teal) 50% 75%, var(--color-blue) 75% 100%);
}
.page-faq .faq-breadcrumb {
  margin-bottom: 28px;
}
.page-faq .faq-breadcrumb a {
  color: rgba(253, 254, 254, 0.72);
  text-decoration: none;
}
.page-faq .faq-breadcrumb a:hover {
  color: var(--color-yellow);
  text-decoration: underline;
}
.page-faq .faq-breadcrumb .breadcrumb-sep {
  color: rgba(253, 254, 254, 0.4);
}
.page-faq .faq-hero-inner {
  display: grid;
  gap: 28px;
  padding-bottom: 8px;
}
@media (min-width: 900px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: end;
    gap: 40px;
  }
}
.page-faq .faq-hero-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-yellow);
  border-left: 3px solid var(--color-yellow);
  padding-left: 10px;
  margin: 0 0 14px;
  line-height: 1.6;
}
.page-faq .faq-hero h1 {
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.12;
  margin: 0 0 12px;
  color: var(--text-invert);
}
.page-faq .faq-hero-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(253, 254, 254, 0.78);
}
.page-faq .meta-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}
.page-faq .meta-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-invert);
}
.page-faq .meta-chip.is-orange {
  color: var(--color-yellow);
  border-color: rgba(230, 126, 34, 0.65);
}
.page-faq .meta-chip.is-teal {
  color: var(--color-teal);
  border-color: rgba(26, 188, 156, 0.65);
}
.page-faq .meta-chip.is-blue {
  color: var(--color-blue);
  border-color: rgba(52, 152, 219, 0.65);
}
.page-faq .meta-chip.is-yellow {
  color: var(--color-yellow);
  border-color: rgba(241, 196, 15, 0.6);
}
.page-faq .faq-dim-index {
  display: flex;
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.12);
  margin-bottom: 10px;
}
.page-faq .faq-dim-index span {
  display: block;
  height: 100%;
}
.page-faq .faq-dim-index .di-year {
  flex: 44 1 0;
  background: var(--color-orange);
}
.page-faq .faq-dim-index .di-model {
  flex: 36 1 0;
  background: var(--color-teal);
}
.page-faq .faq-dim-index .di-type {
  flex: 20 1 0;
  background: var(--color-yellow);
}
.page-faq .faq-dim-note {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(253, 254, 254, 0.62);
}

/* ===== 02 快速上手步骤 ===== */
.page-faq .faq-steps {
  background: var(--color-warm);
  padding: 48px 0 56px;
}
.page-faq .faq-steps .faq-section-head .section-num {
  color: var(--color-orange);
}
.page-faq .steps-grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}
@media (min-width: 680px) {
  .page-faq .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1100px) {
  .page-faq .steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.page-faq .step-card {
  --step-accent: var(--color-orange);
  position: relative;
  overflow: hidden;
  background: var(--color-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 18px;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.page-faq .step-card:nth-child(2) {
  --step-accent: var(--color-teal);
}
.page-faq .step-card:nth-child(3) {
  --step-accent: var(--color-blue);
}
.page-faq .step-card:nth-child(4) {
  --step-accent: var(--color-rose);
}
.page-faq .step-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--step-accent);
}
.page-faq .step-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.page-faq .step-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.page-faq .step-num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--step-accent);
}
.page-faq .step-icon {
  display: block;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background: var(--color-warm);
  object-fit: cover;
  flex: 0 0 auto;
}
.page-faq .step-card h3 {
  font-size: 17px;
  margin: 0 0 8px;
  color: var(--text-main);
}
.page-faq .step-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ===== 03 常见问题 + 操作路径 深色分栏 ===== */
.page-faq .faq-help-split {
  background: var(--color-deep);
  padding: 48px 0 64px;
}
.page-faq .faq-split-grid {
  display: grid;
  gap: 44px;
}
@media (min-width: 1024px) {
  .page-faq .faq-split-grid {
    grid-template-columns: 1.04fr 0.96fr;
    align-items: start;
    gap: 48px;
  }
}
.page-faq .faq-help-split .faq-section-head .section-num {
  color: var(--color-yellow);
}
.page-faq .faq-help-split .faq-section-head .section-title {
  color: var(--text-invert);
}
.page-faq .faq-help-split .faq-section-head .section-note {
  color: rgba(253, 254, 254, 0.6);
}

/* FAQ折叠列表 */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}
.page-faq .faq-item {
  background: var(--color-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.page-faq .faq-item[open] {
  border-color: var(--color-orange);
  box-shadow: var(--shadow-md);
}
.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary::marker {
  content: "";
}
.page-faq .faq-q-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: var(--color-deep);
  color: var(--color-yellow);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  margin-top: 1px;
}
.page-faq .faq-a {
  padding: 0 18px 16px 50px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
}
.page-faq .faq-a p {
  margin: 0 0 4px;
}
.page-faq .faq-a a {
  color: var(--color-teal-dark);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-a a:hover {
  color: var(--color-blue-dark);
}

/* 操作路径标签面板 */
.page-faq .scenario-box {
  margin-top: 24px;
}
.page-faq .scenario-tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.page-faq .scenario-tab {
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(253, 254, 254, 0.8);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.page-faq .scenario-tab:hover {
  background: rgba(255, 255, 255, 0.14);
  color: var(--text-invert);
}
.page-faq .scenario-tab.is-active {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: var(--text-invert);
}
.page-faq .scenario-panels {
  display: grid;
  gap: 16px;
}
@media (min-width: 1080px) {
  .page-faq .scenario-panels {
    grid-template-columns: 1fr 1fr;
  }
}
.page-faq .scenario-panel {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius-md);
  padding: 18px;
  color: var(--text-invert);
}
.page-faq .scenario-panel.is-active {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-yellow);
}
.page-faq .scenario-panel[hidden] {
  display: none;
}
.page-faq .scenario-panel h3 {
  margin: 0 0 12px;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-yellow);
}
.page-faq .scenario-panel h3::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--color-yellow);
  flex: 0 0 8px;
}
.page-faq .scenario-steps {
  margin: 0 0 16px;
  padding-left: 20px;
  font-size: 13px;
  line-height: 1.85;
  color: rgba(253, 254, 254, 0.82);
}
.page-faq .scenario-steps li::marker {
  color: var(--color-teal);
  font-weight: 700;
}
.page-faq .scenario-figure {
  margin: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: var(--color-warm);
}
.page-faq .scenario-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

/* ===== 04 继续浏览磁贴 ===== */
.page-faq .faq-related {
  background: var(--color-warm);
  padding: 48px 0 64px;
}
.page-faq .faq-related .faq-section-head .section-num {
  color: var(--color-teal);
}
.page-faq .related-grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}
@media (min-width: 720px) {
  .page-faq .related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.page-faq .related-tile {
  --tile-color: var(--color-blue);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px;
  border-radius: var(--radius-md);
  background: var(--color-card);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: var(--text-main);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.page-faq .related-tile.is-orange {
  --tile-color: var(--color-orange);
}
.page-faq .related-tile.is-teal {
  --tile-color: var(--color-teal);
}
.page-faq .related-tile::before {
  content: "";
  display: block;
  width: 36px;
  height: 4px;
  border-radius: 4px;
  background: var(--tile-color);
}
.page-faq .related-tile:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.page-faq .related-label {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}
.page-faq .related-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
}
.page-faq .related-count {
  font-family: var(--font-mono);
  font-size: 13px;
  margin-top: 6px;
  letter-spacing: 0.02em;
}
.page-faq .related-tile.is-blue .related-count {
  color: var(--color-blue-dark);
}
.page-faq .related-tile.is-orange .related-count {
  color: var(--color-orange-dark);
}
.page-faq .related-tile.is-teal .related-count {
  color: var(--color-teal-dark);
}

/* ===== 焦点与降级动效 ===== */
.page-faq .faq-item summary:focus-visible,
.page-faq .scenario-tab:focus-visible,
.page-faq .related-tile:focus-visible {
  outline: 2px solid var(--color-yellow);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  .page-faq .step-card,
  .page-faq .related-tile,
  .page-faq .scenario-tab {
    transition: none;
  }
}