.page-faq {
  --faq-cut-lg: 26px;
  --faq-cut-sm: 14px;
  --faq-gap: clamp(28px, 4.5vw, 56px);
  display: block;
  padding-bottom: clamp(56px, 9vw, 110px);
  overflow-x: clip;
}

.page-faq .lt-breadcrumb {
  padding-top: clamp(20px, 3vw, 34px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(16px, 2.4vw, 26px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
  padding: clamp(22px, 4vw, 46px);
  background:
    radial-gradient(120% 150% at 100% 0%, rgba(53, 230, 210, 0.14) 0%, rgba(53, 230, 210, 0) 56%),
    radial-gradient(90% 120% at 0% 100%, rgba(232, 180, 87, 0.1) 0%, rgba(232, 180, 87, 0) 60%),
    linear-gradient(150deg, #0E1B2A 0%, #0A1521 62%, #0B1526 100%);
  border: 1px solid var(--line-cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut-lg)), calc(100% - var(--faq-cut-lg)) 100%, 0 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 62%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(53, 230, 210, 0) 100%);
  opacity: 0.55;
}

.page-faq .faq-hero__text {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  text-shadow: 0 0 22px rgba(53, 230, 210, 0.22);
}

.page-faq .faq-hero__lead {
  margin-top: 16px;
  max-width: 46ch;
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 26px 0 0;
  padding: 20px 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__stat {
  min-width: 0;
}

.page-faq .faq-hero__stat b {
  display: block;
  font-family: var(--mono);
  font-size: clamp(18px, 2.6vw, 26px);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold);
  line-height: 1.2;
}

.page-faq .faq-hero__stat em {
  display: block;
  margin-top: 6px;
  font-style: normal;
  font-size: 13px;
  line-height: 1.5;
  color: var(--fog);
}

.page-faq .faq-hero__media {
  position: relative;
  z-index: 1;
  margin: 0;
  aspect-ratio: 1400 / 480;
  border: 1px solid var(--line-soft);
  background: linear-gradient(140deg, #122234 0%, #6E6A85 55%, #1B7F79 100%);
}

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

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-body {
  margin-top: clamp(36px, 6vw, 74px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: start;
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index {
  min-width: 0;
  padding: 18px 16px 16px;
  background: linear-gradient(180deg, rgba(18, 34, 52, 0.72), rgba(10, 21, 33, 0.55));
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--gold-dim);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut-sm)), calc(100% - var(--faq-cut-sm)) 100%, 0 100%);
}

.page-faq .faq-index__tag {
  margin: 0 0 14px;
}

.page-faq .faq-index__nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
}

.page-faq .faq-index__item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 12px;
  border-left: 2px solid rgba(233, 226, 212, 0.08);
  color: var(--fog);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: color 180ms ease-out, background-color 180ms ease-out, border-color 180ms ease-out;
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  color: var(--ivory);
  background: rgba(53, 230, 210, 0.08);
  border-left-color: var(--cyan);
  outline: none;
}

.page-faq .faq-index__num {
  font-size: 13px;
  color: var(--cyan);
  flex: none;
}

.page-faq .faq-index__label {
  min-width: 0;
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--fog);
}

/* ---------- 问答组 ---------- */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(44px, 6.5vw, 84px);
}

.page-faq .faq-group__head {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__head .lt-tag {
  margin: 0 0 12px;
}

.page-faq .faq-group__head .lt-h2 {
  margin: 0;
}

.page-faq .faq-group__head .lt-lead {
  margin: 14px 0 0;
  max-width: 44ch;
}

/* 路径示意 */
.page-faq .faq-path {
  margin: clamp(22px, 3vw, 32px) 0 clamp(20px, 3vw, 28px);
  border: 1px solid var(--line-soft);
  background: linear-gradient(135deg, #101F31 0%, #6E6A85 58%, #1B7F79 100%);
  aspect-ratio: 1000 / 620;
}

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

/* 关卡条目 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: linear-gradient(90deg, rgba(18, 34, 52, 0.92), rgba(14, 27, 42, 0.55));
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut-sm)), calc(100% - var(--faq-cut-sm)) 100%, 0 100%);
  transition: border-color 200ms ease-out, box-shadow 200ms ease-out;
}

.page-faq .faq-step:hover {
  border-color: var(--line-gold);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.34);
}

.page-faq .faq-step__num {
  align-self: stretch;
  display: flex;
  align-items: flex-start;
  padding-right: 12px;
  border-right: 1px solid var(--line-cyan);
  font-size: 18px;
  color: var(--cyan);
}

.page-faq .faq-step__body {
  min-width: 0;
}

.page-faq .faq-step__body .lt-h4 {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-faq .faq-step__time {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
  padding: 3px 8px;
  border: 1px solid var(--line-gold);
  background: rgba(232, 180, 87, 0.07);
  white-space: nowrap;
}

.page-faq .faq-step__body p {
  margin: 8px 0 0;
  color: var(--fog);
  font-size: 15px;
  line-height: 1.75;
}

/* 展开问答 */
.page-faq .faq-disclosure {
  margin-top: clamp(20px, 3vw, 28px);
}

.page-faq .faq-disclosure .lt-disclosure__item {
  margin-bottom: 10px;
  background: rgba(14, 27, 42, 0.62);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut-sm)), calc(100% - var(--faq-cut-sm)) 100%, 0 100%);
  transition: border-color 200ms ease-out, background-color 200ms ease-out;
}

.page-faq .faq-disclosure .lt-disclosure__item:hover {
  border-color: var(--line-gold);
}

.page-faq .faq-disclosure .lt-disclosure__item[data-open="true"] {
  border-color: var(--line-cyan);
  background: rgba(18, 34, 52, 0.92);
}

.page-faq .faq-disclosure .lt-disclosure__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 17px 18px;
  background: none;
  border: 0;
  color: var(--ivory);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
  transition: color 180ms ease-out;
}

.page-faq .faq-disclosure .lt-disclosure__btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-disclosure .lt-disclosure__sign {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  border: 1px solid var(--line-gold);
  border-radius: 50%;
  transition: border-color 200ms ease-out, transform 240ms ease-out;
}

.page-faq .faq-disclosure .lt-disclosure__sign::before,
.page-faq .faq-disclosure .lt-disclosure__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--gold);
  transform: translate(-50%, -50%);
  transition: opacity 200ms ease-out, background-color 200ms ease-out;
}

.page-faq .faq-disclosure .lt-disclosure__sign::before {
  width: 9px;
  height: 1.5px;
}

.page-faq .faq-disclosure .lt-disclosure__sign::after {
  width: 1.5px;
  height: 9px;
}

.page-faq .faq-disclosure .lt-disclosure__item[data-open="true"] .lt-disclosure__sign {
  border-color: var(--cyan);
  transform: rotate(135deg);
}

.page-faq .faq-disclosure .lt-disclosure__item[data-open="true"] .lt-disclosure__sign::before,
.page-faq .faq-disclosure .lt-disclosure__item[data-open="true"] .lt-disclosure__sign::after {
  background: var(--cyan);
}

.page-faq .faq-disclosure .lt-disclosure__body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-disclosure .lt-disclosure__body p {
  margin: 14px 0 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

.page-faq .faq-disclosure .lt-disclosure__body p:first-child {
  margin-top: 16px;
}

.page-faq .faq-disclosure__link-row {
  padding-top: 12px;
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-num {
  font-size: 16px;
  color: var(--cyan);
  font-weight: 700;
}

/* 参数来源入口 */
.page-faq .faq-src {
  position: relative;
  display: inline-block;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(53, 230, 210, 0.5);
  transition: color 180ms ease-out, border-color 180ms ease-out;
}

.page-faq .faq-src:hover,
.page-faq .faq-src:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
  outline: none;
}

.page-faq .faq-src__pop {
  position: absolute;
  left: 0;
  bottom: calc(100% + 9px);
  z-index: 6;
  width: max-content;
  max-width: min(230px, 72vw);
  padding: 8px 11px;
  background: var(--paper);
  color: #12161d;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity 200ms ease-out, transform 200ms ease-out, visibility 200ms;
}

.page-faq .faq-src:hover .faq-src__pop,
.page-faq .faq-src:focus-visible .faq-src__pop {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------- 收口区块 ---------- */
.page-faq .faq-resolve {
  margin-top: clamp(48px, 7vw, 90px);
  padding: clamp(24px, 4vw, 44px);
  scroll-margin-top: calc(var(--header-h) + 28px);
  background:
    radial-gradient(100% 160% at 0% 0%, rgba(232, 180, 87, 0.12) 0%, rgba(232, 180, 87, 0) 58%),
    linear-gradient(160deg, #102033 0%, #0A1521 100%);
  border: 1px solid var(--line-gold);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut-lg)), calc(100% - var(--faq-cut-lg)) 100%, 0 100%);
}

.page-faq .faq-resolve .lt-tag {
  margin: 0 0 12px;
}

.page-faq .faq-resolve .lt-h2 {
  margin: 0;
}

.page-faq .faq-resolve > .lt-lead {
  margin: 14px 0 0;
  max-width: 44ch;
}

.page-faq .faq-resolve__grid {
  margin-top: clamp(22px, 3vw, 32px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-resolve__card {
  min-width: 0;
  padding: 20px;
  background: rgba(7, 16, 25, 0.68);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--cyan);
}

.page-faq .faq-resolve__card .lt-h4 {
  margin: 0 0 14px;
  color: var(--ivory);
}

.page-faq .faq-resolve__text {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

.page-faq .faq-resolve__text:last-child {
  margin-bottom: 0;
}

.page-faq .faq-inline-link {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  transition: color 180ms ease-out;
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--cyan);
  outline: none;
}

.page-faq .faq-resolve__actions {
  margin-top: clamp(22px, 3vw, 30px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-resolve__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
  }

  .page-faq .faq-body {
    grid-template-columns: 252px minmax(0, 1fr);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 22px);
    align-self: start;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-body {
    grid-template-columns: 278px minmax(0, 1fr);
  }
}

@media (max-width: 420px) {
  .page-faq .faq-hero__stat b {
    font-size: 16px;
    letter-spacing: 0.04em;
  }

  .page-faq .faq-hero__stat em {
    font-size: 12px;
  }

  .page-faq .faq-step {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 12px;
    padding: 14px;
  }

  .page-faq .faq-step__num {
    padding-right: 8px;
    font-size: 15px;
  }

  .page-faq .faq-disclosure .lt-disclosure__btn {
    font-size: 15px;
    padding: 15px 14px;
  }

  .page-faq .faq-disclosure .lt-disclosure__body {
    padding: 0 14px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__item,
  .page-faq .faq-step,
  .page-faq .faq-disclosure .lt-disclosure__item,
  .page-faq .faq-disclosure .lt-disclosure__sign,
  .page-faq .faq-disclosure .lt-disclosure__sign::before,
  .page-faq .faq-disclosure .lt-disclosure__sign::after,
  .page-faq .faq-src,
  .page-faq .faq-src__pop,
  .page-faq .faq-inline-link {
    transition: none;
  }

  .page-faq .faq-disclosure .lt-disclosure__item[data-open="true"] .lt-disclosure__sign {
    transform: none;
  }
}