.page-faq {
  --faq-index-w: 236px;
  --faq-dash: rgba(22, 35, 61, 1);
  display: block;
}

/* 面包屑 */
.page-faq .breadcrumb {
  padding-block: clamp(18px, 2.6vw, 30px) 0;
}

/* 首屏拼贴 */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  padding-block: clamp(26px, 4vw, 46px) clamp(34px, 5.5vw, 76px);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(34px, 7.6vw, 74px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-hero__lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 48ch;
  font-size: var(--fs-lead);
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-hero__links .btn {
  padding: 10px 18px;
  font-size: var(--fs-small);
}

.page-faq .faq-hero__media {
  margin: 0;
  aspect-ratio: 9 / 7;
}

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

/* 筛选条 */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-block: 16px;
  border-top: 2px solid var(--edge);
  border-bottom: 2px solid var(--edge);
}

.page-faq .faq-filter .filter-btn {
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: var(--fs-index);
  letter-spacing: 0.08em;
  color: var(--muted);
  background: transparent;
  border: 1.5px solid var(--line);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-filter .filter-btn:hover {
  color: var(--white);
  border-color: var(--cyan);
}

.page-faq .faq-filter .filter-btn[aria-pressed="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

/* 索引 + 问答正文 */
.page-faq .faq-body {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  padding-block: clamp(34px, 5vw, 62px) var(--block);
}

.page-faq .faq-index {
  padding: clamp(18px, 2.4vw, 24px);
  background: var(--panel);
  border: 2px solid var(--edge);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-size: var(--fs-index);
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 8px;
  font-size: var(--fs-small);
  color: var(--muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--white);
  border-left-color: var(--cyan);
  background: rgba(0, 229, 208, 0.07);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

/* 问题条目 */
.page-faq .faq-list {
  display: grid;
}

.page-faq .faq-item {
  padding-block: clamp(26px, 3.6vw, 46px);
  border-top: 2px solid var(--edge);
  scroll-margin-top: 96px;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-item:last-of-type {
  border-bottom: 2px solid var(--edge);
}

.page-faq .faq-item:target {
  background: var(--panel);
  box-shadow: inset 4px 0 0 var(--cyan);
}

.page-faq .faq-tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 12px;
  font-size: var(--fs-index);
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-tag::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 208, 0.16);
}

.page-faq .faq-q {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.7vw, 30px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-a {
  font-size: var(--fs-body);
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-a p {
  margin: 0 0 14px;
  max-width: 64ch;
}

.page-faq .faq-a strong {
  color: var(--white);
  font-weight: 700;
}

.page-faq .faq-a__lead {
  margin-top: 22px !important;
  color: var(--white);
  font-weight: 600;
}

.page-faq .faq-a a,
.page-faq .faq-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-a a:hover,
.page-faq .faq-link:hover {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* 步骤流程条 */
.page-faq .steps {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
}

.page-faq .steps__item {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 22px;
}

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

.page-faq .steps__item::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 36px;
  bottom: 0;
  border-left: 2px dashed var(--line);
}

.page-faq .steps__item:last-child::before {
  display: none;
}

.page-faq .steps__num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-faq .steps__body {
  padding-top: 4px;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .steps--compact .steps__body {
  font-size: var(--fs-small);
  line-height: 1.8;
}

/* 检查项 */
.page-faq .checklist {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 11px;
}

.page-faq .checklist__item {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: var(--fs-body);
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .checklist__box {
  width: 16px;
  height: 16px;
  margin-top: 7px;
  border: 2px solid var(--line);
  background: rgba(14, 23, 41, 0.9);
}

/* 提示条 */
.page-faq .faq-note {
  margin: 20px 0 0 !important;
  max-width: 64ch;
  padding: 14px 16px;
  border-left: 3px solid var(--orange);
  background: var(--panel);
  color: var(--white);
  font-size: var(--fs-small);
  line-height: 1.78;
}

/* 图文分栏 */
.page-faq .faq-split {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: 22px;
}

.page-faq .faq-split__media {
  margin: 0;
  aspect-ratio: 4 / 3;
}

/* 节奏列表 */
.page-faq .cadence {
  margin-top: 20px;
  border-top: 1.5px solid var(--line);
}

.page-faq .cadence__row {
  display: grid;
  gap: 6px;
  padding-block: 16px;
  border-bottom: 1.5px solid var(--line);
}

.page-faq .cadence__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.01em;
  color: var(--cyan);
}

.page-faq .cadence__desc {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.74;
  color: var(--muted);
}

/* 空态 */
.page-faq .filter-empty {
  margin: 0;
  padding: 30px 0;
  font-size: var(--fs-body);
  color: var(--muted);
  border-bottom: 2px solid var(--edge);
}

/* 末段引导 */
.page-faq .faq-cta {
  display: grid;
  gap: 22px;
  margin-bottom: var(--block);
  padding: clamp(26px, 4vw, 46px);
  background: var(--panel);
  border: 2px solid var(--edge);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-cta__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3vw, 32px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-cta__lead {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: var(--fs-body);
  line-height: 1.76;
  color: var(--muted);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 桌面端 */
@media (min-width: 760px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
    align-items: start;
  }

  .page-faq .cadence__row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
    padding-block: 18px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
    gap: clamp(40px, 6vw, 84px);
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 44px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-filter .filter-btn,
  .page-faq .faq-item,
  .page-faq .faq-a a {
    transition: none;
  }
}