.page-faq {
  --faq-pad: clamp(40px, 7vw, 88px);
  --faq-gap: clamp(20px, 3vw, 34px);
  --faq-ink-line: rgba(243, 238, 228, 0.18);
  --faq-ink-soft: rgba(243, 238, 228, 0.72);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-faq .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.page-faq .mono--amber {
  color: var(--amber);
  font-weight: 700;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(32px, 6vw, 72px) clamp(28px, 4vw, 48px);
  border-bottom: 1px solid var(--paper-line);
  background: var(--paper);
}

.page-faq .breadcrumb {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-faq .faq-kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
  font-weight: 700;
}

.page-faq .faq-h1 {
  margin: 0;
  max-width: 20ch;
  font-size: clamp(32px, 6.4vw, 68px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.page-faq .faq-lede {
  margin: clamp(18px, 3vw, 28px) 0 0;
  max-width: 46em;
  color: var(--ink-2);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.75;
}

.page-faq .faq-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--paper-line);
  background: var(--paper-card);
  color: var(--ink-2);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-toc a .mono {
  font-size: 11px;
  color: var(--brand);
  font-weight: 700;
}

.page-faq .faq-toc a:hover,
.page-faq .faq-toc a:focus-visible {
  border-color: var(--brand);
  background: #fff;
  color: var(--brand);
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-sec {
  padding-block: var(--faq-pad);
  border-bottom: 1px solid var(--paper-line);
}

.page-faq .faq-sec--ink {
  background: var(--ink);
  color: var(--paper);
  border-bottom-color: transparent;
}

.page-faq .section-head {
  margin-bottom: var(--faq-gap);
}

.page-faq .faq-sec--ink .section-head__title {
  color: var(--paper);
}

.page-faq .faq-sec--ink .section-head__num {
  color: var(--amber-soft);
}

.page-faq .prose {
  margin: 0 0 18px;
  max-width: 44em;
  line-height: 1.78;
  color: var(--ink-2);
}

.page-faq .faq-indent {
  margin-bottom: var(--faq-gap);
}

.page-faq .faq-ink-lede {
  margin: 0 0 var(--faq-gap);
  max-width: 44em;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

/* ---------- 自检 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
  margin-bottom: var(--faq-gap);
}

.page-faq .check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--paper-line);
  border: 1px solid var(--paper-line);
}

.page-faq .check-item {
  background: var(--paper-card);
  padding: 20px 20px 22px;
  transition: background 0.18s var(--ease);
}

.page-faq .check-item:hover {
  background: #fff;
}

.page-faq .check-item__num {
  display: block;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--brand);
  font-weight: 700;
}

.page-faq .check-item__title {
  margin: 8px 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .check-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-2);
}

.page-faq .faq-media {
  margin: 0;
}

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

.page-faq .media__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  margin-top: clamp(26px, 4vw, 40px);
}

.page-faq .qa {
  border-top: 1px solid var(--paper-line);
  border-left: 3px solid transparent;
  transition: border-color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-faq .qa:last-child {
  border-bottom: 1px solid var(--paper-line);
}

.page-faq .qa[open] {
  border-left-color: var(--brand);
  padding-left: 16px;
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  transition: color 0.18s var(--ease);
}

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

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

.page-faq .qa__mark {
  flex: none;
  margin-left: auto;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  position: relative;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--brand);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}

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

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

.page-faq .qa[open] .qa__mark::after {
  transform: scaleY(0);
}

.page-faq .qa__a {
  padding: 0 0 20px;
  max-width: 44em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-2);
}

.page-faq .qa__a a {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.18s var(--ease);
}

.page-faq .qa__a a:hover {
  color: var(--signal);
}

/* 深色区的问答 */
.page-faq .qa-list--ink .qa {
  border-top-color: var(--faq-ink-line);
}

.page-faq .qa-list--ink .qa:last-child {
  border-bottom-color: var(--faq-ink-line);
}

.page-faq .qa-list--ink .qa__q {
  color: var(--paper);
}

.page-faq .qa-list--ink .qa__q:hover {
  color: var(--blue-soft);
}

.page-faq .qa-list--ink .qa[open] {
  border-left-color: var(--amber);
}

.page-faq .qa-list--ink .qa__a {
  color: var(--faq-ink-soft);
}

.page-faq .qa-list--ink .qa__a a {
  color: var(--amber-soft);
}

.page-faq .qa-list--ink .qa__mark::before,
.page-faq .qa-list--ink .qa__mark::after {
  background: var(--amber);
}

/* ---------- 城市覆盖 ---------- */
.page-faq .region-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 clamp(26px, 4vw, 40px);
  padding: 0;
  list-style: none;
  background: var(--faq-ink-line);
  border: 1px solid var(--faq-ink-line);
}

.page-faq .region-tile {
  background: var(--ink);
  padding: 20px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: background 0.18s var(--ease);
}

.page-faq .region-tile:hover {
  background: #102538;
}

.page-faq .region-tile__count {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--blue-soft);
}

.page-faq .region-tile__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .region-tile__note {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--faq-ink-soft);
}

.page-faq .liaoning {
  border: 1px solid var(--faq-ink-line);
  border-left: 3px solid var(--amber);
  padding: 22px 20px;
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-faq .liaoning__title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--amber-soft);
}

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

.page-faq .city-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--faq-ink-line);
  color: var(--paper);
  font-size: 15px;
}

.page-faq .city-tag::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(31, 122, 92, 0.18);
}

.page-faq .city-tag--amber {
  border-color: rgba(232, 121, 43, 0.55);
  color: var(--amber-soft);
}

.page-faq .city-tag--amber::before {
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(232, 121, 43, 0.2);
}

.page-faq .liaoning__note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

/* ---------- 五步流程 ---------- */
.page-faq .flow {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--paper-line);
}

.page-faq .flow__step {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 6px 14px;
  padding: 22px 0;
  border-bottom: 1px solid var(--paper-line);
  transition: background 0.18s var(--ease);
}

.page-faq .flow__step:hover {
  background: rgba(22, 64, 127, 0.04);
}

.page-faq .flow__num {
  grid-row: 1 / span 3;
  font-size: 15px;
  font-weight: 700;
  color: var(--brand);
}

.page-faq .flow__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .flow__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-2);
}

.page-faq .flow__note {
  margin: 2px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-faq .flow__step--key .flow__num,
.page-faq .flow__step--key .flow__note {
  color: var(--amber);
}

.page-faq .media--wide {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

/* ---------- 保修 ---------- */
.page-faq .warranty {
  display: grid;
  gap: 1px;
  margin: 0 0 clamp(24px, 4vw, 36px);
  padding: 0;
  list-style: none;
  background: var(--faq-ink-line);
  border: 1px solid var(--faq-ink-line);
}

.page-faq .warranty__seg {
  background: var(--ink);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq .warranty__label {
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .warranty__years {
  font-size: clamp(30px, 4vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
}

.page-faq .warranty__bars {
  display: flex;
  gap: 4px;
  margin: 6px 0 4px;
}

.page-faq .warranty__bars i {
  flex: 1;
  height: 8px;
  background: rgba(243, 238, 228, 0.16);
  transition: background 0.18s var(--ease);
}

.page-faq .warranty__bars i.on {
  background: var(--brand);
}

.page-faq .warranty__seg:hover .warranty__bars i.on {
  background: var(--signal);
}

.page-faq .warranty__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--faq-ink-soft);
}

.page-faq .split-note {
  display: grid;
  gap: 1px;
  background: var(--faq-ink-line);
  border: 1px solid var(--faq-ink-line);
  margin-bottom: clamp(24px, 4vw, 36px);
}

.page-faq .split-note__cell {
  background: #102538;
  padding: 20px;
}

.page-faq .split-note__cell p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

/* ---------- 退换 ---------- */
.page-faq .faq-split--reverse {
  align-items: center;
}

.page-faq .daymeter {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border: 1px solid var(--paper-line);
  border-top: 3px solid var(--amber);
  background: var(--paper-card);
  padding: 28px 24px;
}

.page-faq .daymeter__cap {
  font-size: clamp(64px, 12vw, 116px);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: var(--brand);
}

.page-faq .daymeter__unit {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink);
}

.page-faq .daymeter__bar {
  display: block;
  height: 10px;
  margin: 14px 0 8px;
  background: var(--paper-line);
  position: relative;
}

.page-faq .daymeter__bar i {
  position: absolute;
  inset: 0 auto 0 0;
  width: 62%;
  background: var(--amber);
}

.page-faq .daymeter__hint {
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--steel);
}

/* ---------- 费用与保障 ---------- */
.page-faq .cost-grid {
  display: grid;
  gap: 1px;
  background: var(--paper-line);
  border: 1px solid var(--paper-line);
}

.page-faq .cost-card {
  background: var(--paper-card);
  padding: 24px 20px 26px;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
  border-left: 3px solid transparent;
}

.page-faq .cost-card:hover {
  background: #fff;
  border-left-color: var(--brand);
}

.page-faq .cost-card__num {
  display: block;
  font-size: 11px;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--brand);
}

.page-faq .cost-card__title {
  margin: 10px 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .cost-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--ink-2);
}

/* ---------- 培训 ---------- */
.page-faq .course-grid {
  display: grid;
  gap: 1px;
  margin: 0 0 clamp(24px, 4vw, 36px);
  padding: 0;
  list-style: none;
  background: var(--faq-ink-line);
  border: 1px solid var(--faq-ink-line);
}

.page-faq .course-card {
  background: var(--ink);
  padding: 22px 20px 24px;
  transition: background 0.18s var(--ease);
}

.page-faq .course-card:hover {
  background: #102538;
}

.page-faq .course-card__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--amber-soft);
}

.page-faq .course-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--faq-ink-soft);
}

/* ---------- 尾部 ---------- */
.page-faq .faq-cta {
  padding-block: clamp(44px, 7vw, 88px);
  background: var(--paper-card);
  border-top: 1px solid var(--paper-line);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-faq .faq-cta__title {
  margin: 0 0 14px;
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 46em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-2);
}

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

.page-faq .faq-cta__links .btn {
  flex: 0 1 auto;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .check-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .region-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .warranty {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .cost-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .course-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

  .page-faq .faq-split--reverse {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.7fr);
  }

  .page-faq .flow {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    border-top: none;
    gap: 0;
  }

  .page-faq .flow__step {
    display: block;
    padding: 26px 18px 26px 0;
    border-bottom: none;
    border-top: 1px solid var(--paper-line);
  }

  .page-faq .flow__step::before {
    content: "";
    position: absolute;
    top: -3px;
    left: 0;
    width: 36px;
    height: 3px;
    background: var(--amber);
  }

  .page-faq .flow__step:hover {
    background: transparent;
  }

  .page-faq .flow__num {
    display: block;
    margin-bottom: 12px;
  }

  .page-faq .flow__title {
    margin-bottom: 8px;
  }

  .page-faq .flow__note {
    margin-top: 12px;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-h1 {
    max-width: none;
  }

  .page-faq .qa[open] {
    padding-left: 10px;
  }

  .page-faq .flow__step {
    grid-template-columns: 36px minmax(0, 1fr);
  }

  .page-faq .faq-cta__links .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 0.001ms !important;
  }
}