.page-faq {
  --faq-rail-w: 236px;
  --faq-line: rgba(16, 20, 19, 0.14);
  --faq-line-soft: rgba(16, 20, 19, 0.08);
  --faq-on-dark-line: rgba(201, 184, 140, 0.28);
  background: var(--c-sand-1);
  color: var(--c-ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--c-deep);
  color: var(--c-ivory);
  padding: clamp(34px, 5vw, 60px) 0 clamp(52px, 7vw, 108px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(201, 184, 140, 0.09) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(201, 184, 140, 0.06) 0 1px, transparent 1px 72px);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -38%;
  width: 72%;
  height: 66%;
  background: var(--c-home);
  transform: rotate(-9deg);
  opacity: 0.75;
  pointer-events: none;
}

.page-faq .faq-hero__crumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(28px, 4vw, 52px);
  color: rgba(240, 232, 214, 0.68);
}

.page-faq .faq-hero__crumb a {
  color: rgba(240, 232, 214, 0.68);
  text-decoration: none;
}

.page-faq .faq-hero__crumb a:hover {
  color: var(--c-hot);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: end;
}

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(36px, 6.2vw, 84px);
  font-weight: 200;
  line-height: 1.04;
  letter-spacing: -0.01em;
  max-width: 14em;
}

.page-faq .faq-hero__sub {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(240, 232, 214, 0.82);
}

/* 页内检索 */
.page-faq .faq-finder {
  margin-top: clamp(26px, 3.4vw, 40px);
  max-width: 560px;
}

.page-faq .faq-finder__label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-sand);
}

.page-faq .faq-finder__field {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 54px;
  padding: 0 20px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(201, 184, 140, 0.36);
  background: rgba(240, 232, 214, 0.08);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: border-color var(--t-fast) var(--ease);
}

.page-faq .faq-finder__field:focus-within {
  border-color: var(--c-hot);
}

.page-faq .faq-finder__input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--c-ivory);
  font-family: var(--font-sans);
  font-size: 15px;
  outline: none;
}

.page-faq .faq-finder__input::placeholder {
  color: rgba(240, 232, 214, 0.46);
}

.page-faq .faq-finder__count {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--c-sand);
}

/* 首屏图 */
.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--c-home);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 86%);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.68) contrast(1.06);
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(22, 33, 26, 0.12), rgba(22, 33, 26, 0.58));
  pointer-events: none;
}

/* ---------- 主体画布 ---------- */
.page-faq .faq-body {
  padding: clamp(48px, 6vw, 96px) 0 clamp(64px, 8vw, 128px);
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 4vw, 56px);
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 80px);
  }
}

/* 左侧编号刻度栏 */
.page-faq .faq-rail__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

@media (min-width: 480px) and (max-width: 1023px) {
  .page-faq .faq-rail__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 128px;
    align-self: start;
  }

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

.page-faq .faq-rail__link {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: baseline;
  gap: 10px;
  padding: 12px 10px 12px 0;
  color: var(--c-ink);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.45;
  border-top: 1px solid var(--faq-line);
  transition: color var(--t-fast) var(--ease), padding-left var(--t-fast) var(--ease);
}

.page-faq .faq-rail__link:hover {
  color: var(--c-orange);
  padding-left: 6px;
}

.page-faq .faq-rail__link:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: 2px;
}

.page-faq .faq-rail__no {
  font-size: 12px;
  color: var(--c-orange);
  letter-spacing: 0.06em;
}

.page-faq .faq-rail__name {
  font-weight: 500;
}

.page-faq .faq-rail__hint {
  margin: 18px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--c-steel);
  max-width: 20em;
}

/* ---------- 分组 ---------- */
.page-faq .faq-canvas {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 136px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(56px, 7vw, 104px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--c-ink);
  margin-bottom: 4px;
}

@media (min-width: 640px) {
  .page-faq .faq-group__head {
    grid-template-columns: 90px minmax(0, 1fr);
    align-items: end;
    gap: 20px;
  }
}

.page-faq .faq-group__no {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--c-sand);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  scroll-margin-top: 136px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 18px;
  gap: 10px;
  align-items: start;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .faq-item__q:hover .faq-item__text {
  color: var(--c-orange);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: -2px;
}

.page-faq .faq-item__no {
  font-size: 13px;
  line-height: 1.9;
  color: var(--c-steel);
  letter-spacing: 0.04em;
  transition: color var(--t-fast) var(--ease);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--c-orange);
}

.page-faq .faq-item__text {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  transition: color var(--t-fast) var(--ease);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 6px;
  justify-self: end;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--c-orange);
  transition: transform var(--t-fast) var(--ease), opacity var(--t-fast) var(--ease);
}

.page-faq .faq-item__mark::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 2px 0 24px 14px;
  border-left: 2px solid var(--c-sand);
}

@media (min-width: 640px) {
  .page-faq .faq-item__a {
    margin-left: 44px;
    padding-left: 22px;
  }
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.78;
}

.page-faq .faq-item__a p + p {
  margin-top: 14px;
}

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

.page-faq .faq-item__a a:hover {
  color: var(--c-deep);
}

/* ---------- 三步刻度路径 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  counter-reset: step;
}

@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

.page-faq .faq-steps__node {
  position: relative;
  padding: 34px 18px 18px;
  background: var(--c-ivory);
  border: 1px solid var(--faq-line);
  transition: border-color var(--t-fast) var(--ease);
}

.page-faq .faq-steps__node:hover {
  border-color: var(--c-orange);
}

.page-faq .faq-steps__node::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: var(--c-sand);
}

.page-faq .faq-steps__node::after {
  content: "";
  position: absolute;
  top: 10px;
  left: 18px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-sand);
}

.page-faq .faq-steps__node:first-child::after {
  background: var(--c-orange);
  box-shadow: 0 0 0 4px rgba(232, 67, 28, 0.16);
}

.page-faq .faq-steps__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-orange);
}

.page-faq .faq-steps__name {
  display: block;
  margin-top: 6px;
  font-size: 15px;
  font-weight: 700;
}

.page-faq .faq-steps__hint {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-steel);
}

/* ---------- 往期路径图 ---------- */
.page-faq .faq-pathmap {
  margin: clamp(28px, 4vw, 44px) 0 0;
  border: 1px solid var(--faq-line);
  background: var(--c-ivory);
}

.page-faq .faq-pathmap img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.04);
}

.page-faq .faq-pathmap__cap {
  padding: 12px 18px;
  border-top: 1px solid var(--faq-line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-steel);
}

/* ---------- 联系分组（深色条） ---------- */
.page-faq .faq-group--contact {
  margin-top: clamp(56px, 7vw, 104px);
  padding: clamp(26px, 4vw, 48px);
  background: var(--c-tac);
  color: var(--c-ivory);
}

.page-faq .faq-group--contact .faq-group__head {
  border-bottom-color: var(--c-sand);
}

.page-faq .faq-group--contact .faq-group__no {
  color: var(--c-hot);
}

.page-faq .faq-group--contact .faq-item {
  border-bottom-color: var(--faq-on-dark-line);
}

.page-faq .faq-group--contact .faq-item__text {
  color: var(--c-ivory);
}

.page-faq .faq-group--contact .faq-item__q:hover .faq-item__text {
  color: var(--c-hot);
}

.page-faq .faq-group--contact .faq-item__no {
  color: rgba(240, 232, 214, 0.5);
}

.page-faq .faq-group--contact .faq-item[open] .faq-item__no {
  color: var(--c-hot);
}

.page-faq .faq-group--contact .faq-item__mark::before,
.page-faq .faq-group--contact .faq-item__mark::after {
  background: var(--c-hot);
}

.page-faq .faq-group--contact .faq-item__a {
  border-left-color: var(--c-home);
}

.page-faq .faq-group--contact .faq-item__a p {
  color: rgba(240, 232, 214, 0.86);
}

.page-faq .faq-group--contact .faq-item__a a {
  color: var(--c-hot);
}

.page-faq .faq-group--contact .faq-item__a a:hover {
  color: var(--c-ivory);
}

.page-faq .faq-group__cta {
  margin: clamp(24px, 3vw, 36px) 0 0;
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail__link,
  .page-faq .faq-item__q,
  .page-faq .faq-item__text,
  .page-faq .faq-item__no,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-steps__node,
  .page-faq .faq-finder__field {
    transition: none;
  }
}