.page-faq {
  --faq-max: 1180px;
  background: var(--paper);
  color: var(--night);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--night);
  color: var(--paper);
  padding: clamp(26px, 5vw, 52px) 0 clamp(38px, 6vw, 72px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -12%;
  width: min(760px, 82%);
  height: 165%;
  background: linear-gradient(140deg, rgba(46, 155, 143, 0.5), rgba(27, 46, 77, 0) 72%);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 168px;
  height: 4px;
  background: var(--signal);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
}

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

.page-faq .faq-crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-faq .faq-crumb li + li::before {
  content: "/";
  margin-right: 8px;
  opacity: 0.45;
}

.page-faq .faq-crumb a {
  color: var(--lake-pale);
  text-decoration: none;
}

.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  color: var(--signal);
}

.page-faq .faq-hero .section-eyebrow {
  color: var(--lake-pale);
}

.page-faq h1 {
  max-width: 22ch;
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.4vw, 58px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.01em;
  overflow-wrap: break-word;
}

.page-faq .faq-lede {
  max-width: 64ch;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 241, 232, 0.82);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
  max-width: 760px;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding-top: 22px;
  border-top: 1px solid rgba(216, 210, 196, 0.26);
}

.page-faq .faq-stat dt {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lake-pale);
}

.page-faq .faq-stat dd {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.2vw, 30px);
  line-height: 1.1;
  color: var(--paper);
}

/* ---------- 主题筛选带 ---------- */
.page-faq .faq-filter-sticky {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(244, 241, 232, 0.96);
  border-top: 1px solid var(--edge);
  border-bottom: 1px solid var(--edge);
  backdrop-filter: blur(8px);
}

.page-faq .faq-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-faq .faq-filter-bar::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-filter-bar .filter-label {
  flex: none;
  color: var(--rock);
}

.page-faq .faq-filter-bar .filter-btn {
  flex: none;
  white-space: nowrap;
}

.page-faq .faq-filter-bar .filter-btn[aria-pressed="true"] {
  background: var(--signal);
  border-color: var(--signal);
  color: #fff;
}

.page-faq .faq-filter-bar .filter-count {
  flex: none;
  margin-left: 10px;
  padding-left: 10px;
  color: var(--rock);
  white-space: nowrap;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-groups {
  padding-bottom: clamp(26px, 5vw, 64px);
}

.page-faq .faq-group {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  padding: clamp(28px, 5vw, 52px) 0;
  border-top: 1px solid var(--edge);
}

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

.page-faq .faq-group-num {
  display: block;
  font-size: clamp(38px, 7vw, 64px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--lake);
}

.page-faq .faq-group-title {
  margin: 10px 0 6px;
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.6vw, 25px);
  font-weight: 500;
  line-height: 1.4;
}

.page-faq .faq-group-lede {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--rock);
}

.page-faq .faq-group-lede a {
  color: var(--lake);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  counter-reset: faqq;
}

.page-faq .faq-item {
  counter-increment: faqq;
  background: var(--paper-lift);
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sheet);
  transition: border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(46, 155, 143, 0.5);
}

.page-faq .faq-item[open] {
  border-left: 3px solid var(--lake);
  background: var(--paper);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--night);
}

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

.page-faq .faq-item > summary::before {
  content: counter(faqq, decimal-leading-zero);
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--lake);
}

.page-faq .faq-item > summary::after {
  content: "+";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--rock);
  transition: color 180ms var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  content: "\2212";
  color: var(--signal);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.page-faq .faq-a {
  padding: 0 16px 18px 16px;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(16, 28, 51, 0.78);
}

.page-faq .faq-a p {
  margin: 0;
}

.page-faq .faq-a a {
  color: var(--lake);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 图与手势示意 ---------- */
.page-faq .faq-figure {
  margin: 18px 0 0;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  background: var(--night-2);
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  padding: 9px 12px;
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--lake-pale);
  background: var(--night);
}

.page-faq .faq-figure--venue img {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-figure--phone {
  max-width: 300px;
}

.page-faq .faq-figure--phone img {
  aspect-ratio: 3 / 4;
}

.page-faq .faq-gesture {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 16px;
  padding: 16px;
  border: 1px dashed var(--edge);
  border-radius: var(--radius);
  background: var(--paper-lift);
}

.page-faq .faq-gesture svg {
  flex: none;
  width: 200px;
  max-width: 100%;
  height: auto;
}

.page-faq .faq-gesture p {
  margin: 0;
  flex: 1 1 200px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--rock);
}

/* ---------- 结尾行动区 ---------- */
.page-faq .faq-cta {
  background: var(--night);
  color: var(--paper);
  padding: clamp(34px, 6vw, 62px) 0 clamp(30px, 5vw, 50px);
}

.page-faq .faq-cta-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 36px;
  align-items: center;
  justify-content: space-between;
}

.page-faq .faq-cta-text {
  flex: 1 1 320px;
}

.page-faq .faq-cta-text h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-cta-text p {
  max-width: 52ch;
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 241, 232, 0.78);
}

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

.page-faq .faq-cta-note {
  margin-top: clamp(24px, 4vw, 36px);
  padding-top: 18px;
  border-top: 1px solid rgba(216, 210, 196, 0.2);
}

.page-faq .faq-cta-note p {
  margin: 0;
  font-size: 13px;
  line-height: 1.9;
  color: rgba(244, 241, 232, 0.68);
}

.page-faq .faq-cta-note a {
  color: var(--lake-pale);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-cta-note a:hover,
.page-faq .faq-cta-note a:focus-visible {
  color: var(--signal);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-a {
    padding: 0 22px 20px 54px;
  }

  .page-faq .faq-item > summary {
    padding: 16px 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-group {
    grid-template-columns: minmax(200px, 258px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
    padding: clamp(38px, 4vw, 62px) 0;
  }

  .page-faq .faq-group-head {
    position: sticky;
    top: 86px;
    align-self: start;
  }

  .page-faq .faq-item > summary {
    font-size: 16px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item > summary::after {
    transition: none;
  }
}