.page-faq {
  --faq-card: rgba(255, 252, 245, .92);
  --faq-card-open: #FFFCF5;
  --faq-hairline: rgba(201, 188, 166, .58);
  background: var(--cream);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 5vw, 62px) 0 clamp(36px, 6vw, 84px);
  background:
    radial-gradient(118% 90% at 88% 2%, rgba(233, 160, 91, .42) 0%, rgba(251, 243, 228, 0) 60%),
    linear-gradient(158deg, #FBF3E4 0%, #F5E7D2 54%, #EDE0CC 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sandstone) 0%, var(--sunset) 52%, rgba(251, 243, 228, 0) 100%);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-hero-copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(27px, 4.4vw, 46px);
  line-height: 1.22;
  letter-spacing: -.012em;
  max-width: 19ch;
}

.page-faq .faq-lede {
  margin: 16px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--snow-deep);
  max-width: 46ch;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero-facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  font-size: 13.5px;
  letter-spacing: .02em;
  color: var(--snow-deep);
}

.page-faq .faq-hero-facts .mono {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--sandstone);
}

.page-faq .faq-hero-figure {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-soft);
}

/* ---------- 双栏问答区 ---------- */
.page-faq .faq-browser {
  padding: clamp(40px, 6vw, 84px) 0 clamp(30px, 5vw, 58px);
}

.page-faq .faq-browser-grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-index {
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(237, 224, 204, .8) 0%, rgba(237, 224, 204, .38) 100%);
  padding: 18px 16px 16px;
}

.page-faq .faq-index-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-faq .faq-index-note {
  margin: 6px 0 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--snow-deep);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3px 8px;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 9px 7px 11px;
  border-left: 2px solid transparent;
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: 13px;
  line-height: 1.48;
  color: var(--snow-deep);
  text-decoration: none;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
  overflow-wrap: anywhere;
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background: rgba(255, 252, 245, .92);
  color: var(--ink);
  border-left-color: var(--sandstone);
}

.page-faq .faq-index-link:focus-visible {
  outline: 2px solid var(--sandstone);
  outline-offset: 2px;
}

.page-faq .faq-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--sandstone);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(38px, 5vw, 64px);
}

.page-faq .faq-group-head {
  position: relative;
  padding-left: 16px;
  margin-bottom: 18px;
}

.page-faq .faq-group-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 4px;
  width: 4px;
  border-radius: var(--r-pill);
  background: linear-gradient(180deg, var(--sandstone) 0%, var(--sunset) 100%);
}

.page-faq .faq-group-mark {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--snow);
}

.page-faq .faq-group-head h2 {
  margin: 6px 0 0;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -.006em;
  color: var(--ink);
}

.page-faq .faq-group-head p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--snow-deep);
  max-width: 58ch;
}

.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border-radius: var(--r-md);
  background: var(--faq-card);
  box-shadow: 0 16px 34px -30px rgba(43, 33, 26, .82);
  scroll-margin-top: 112px;
  transition: background .2s ease, box-shadow .2s ease;
}

.page-faq .faq-item[open] {
  background: var(--faq-card-open);
  box-shadow: 0 22px 46px -32px rgba(43, 33, 26, .88);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  border-radius: var(--r-md);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

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

.page-faq .faq-qnum {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--sandstone);
}

.page-faq .faq-qtext {
  flex: 1 1 auto;
}

.page-faq .faq-chevron {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--sand);
  transition: background .22s ease;
}

.page-faq .faq-chevron::before,
.page-faq .faq-chevron::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 2px;
  background: var(--snow-deep);
  transform: translate(-50%, -50%);
}

.page-faq .faq-chevron::before {
  width: 9px;
  height: 2px;
}

.page-faq .faq-chevron::after {
  width: 2px;
  height: 9px;
  transition: opacity .2s ease;
}

.page-faq .faq-item[open] .faq-chevron {
  background: var(--sandstone);
}

.page-faq .faq-item[open] .faq-chevron::before {
  background: var(--cream);
}

.page-faq .faq-item[open] .faq-chevron::after {
  opacity: 0;
}

.page-faq .faq-answer {
  margin: 0 16px;
  padding: 14px 0 18px;
  border-top: 1px solid var(--faq-hairline);
}

.page-faq .faq-answer p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--snow-deep);
  max-width: 62ch;
}

.page-faq .faq-answer p + p {
  margin-top: 10px;
}

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

.page-faq .faq-answer .mono {
  font-family: var(--font-mono);
  overflow-wrap: anywhere;
}

.page-faq .faq-group-tail {
  position: relative;
  margin-top: 18px;
  padding: 16px 20px 16px 26px;
  border-radius: 6px var(--r-md) var(--r-md) var(--r-md);
  background: linear-gradient(100deg, rgba(91, 124, 147, .14) 0%, rgba(233, 160, 91, .26) 100%);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 22px;
}

.page-faq .faq-group-tail::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 4px;
  border-radius: var(--r-pill);
  background: var(--sandstone);
}

.page-faq .faq-group-tail p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-tail-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--sandstone);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid rgba(199, 86, 30, .34);
  transition: color .18s ease, border-color .18s ease;
}

.page-faq .faq-tail-link:hover,
.page-faq .faq-tail-link:focus-visible {
  color: var(--tomato);
  border-bottom-color: var(--tomato);
}

.page-faq .faq-tail-link:focus-visible {
  outline: 2px solid var(--sandstone);
  outline-offset: 3px;
}

/* ---------- 术语速查 ---------- */
.page-faq .faq-terms {
  padding-block: clamp(42px, 6vw, 88px);
  background: linear-gradient(180deg, rgba(237, 224, 204, .92) 0%, rgba(237, 224, 204, .55) 100%);
}

.page-faq .faq-terms-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.008em;
  color: var(--ink);
  max-width: 22ch;
}

.page-faq .faq-terms-head p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--snow-deep);
  max-width: 60ch;
}

.page-faq .faq-terms-grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  margin-top: clamp(24px, 3.5vw, 40px);
}

.page-faq .faq-terms-figure {
  margin: 0;
}

.page-faq .faq-terms-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-terms-tablewrap {
  border-radius: var(--r-md);
  overflow: hidden;
  background: rgba(255, 252, 245, .92);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-terms-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-terms-table > caption {
  caption-side: top;
  text-align: left;
  padding: 13px 14px;
  font-family: var(--font-head);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--on-dark);
  background: var(--space);
}

.page-faq .faq-terms-table thead th {
  padding: 10px 14px;
  text-align: left;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--on-dark);
  background: var(--space);
  border-bottom: 2px solid var(--sandstone);
}

.page-faq .faq-terms-table tbody tr:nth-child(odd) {
  background: rgba(237, 224, 204, .58);
}

.page-faq .faq-terms-table tbody tr:nth-child(even) {
  background: rgba(255, 252, 245, .94);
}

.page-faq .faq-terms-table td {
  padding: 10px 14px;
  vertical-align: top;
  line-height: 1.65;
  color: var(--snow-deep);
  border-bottom: 1px solid var(--faq-hairline);
}

.page-faq .faq-terms-table td:first-child {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

/* ---------- 收口 ---------- */
.page-faq .faq-closing {
  padding: clamp(34px, 5vw, 64px) 0 clamp(40px, 6vw, 76px);
}

.page-faq .faq-closing-inner {
  position: relative;
  display: grid;
  gap: 18px;
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--r-lg);
  overflow: hidden;
  color: var(--on-dark);
  background:
    radial-gradient(120% 160% at 92% 8%, rgba(226, 74, 43, .5) 0%, rgba(199, 86, 30, 0) 56%),
    linear-gradient(120deg, var(--sandstone) 0%, #A8471A 58%, var(--space) 100%);
}

.page-faq .faq-closing-inner::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -76px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(233, 160, 91, .3);
  pointer-events: none;
}

.page-faq .faq-closing-text h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 800;
  color: #FFF7EA;
}

.page-faq .faq-closing-text p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(255, 247, 234, .88);
  max-width: 46ch;
}

.page-faq .faq-closing-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-closing-actions .btn--ghost {
  color: #FFF7EA;
  border-color: rgba(255, 247, 234, .58);
  background: rgba(255, 247, 234, .07);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-closing-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-faq .faq-terms-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
}

@media (min-width: 1020px) {
  .page-faq .faq-browser-grid {
    grid-template-columns: 300px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
    max-height: calc(100vh - 128px);
    overflow-y: auto;
    scrollbar-width: thin;
  }

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

@media (max-width: 560px) {
  .page-faq .faq-index-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-terms-table td:first-child {
    white-space: normal;
  }

  .page-faq .faq-qtext {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-index-link,
  .page-faq .faq-tail-link,
  .page-faq .faq-chevron,
  .page-faq .faq-chevron::after {
    transition: none;
  }
}