.page-faq {
  --faq-panel-bg: #142A4C;
  --faq-line: var(--sd-line);
  --faq-signal: var(--sd-orange);
  background: var(--sd-night);
  color: var(--sd-mist);
  overflow-x: clip;
}

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

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(18px, 4vw, 44px) 0 clamp(28px, 5vw, 56px);
}

.page-faq .faq-hero .sd-breadcrumb {
  margin-bottom: clamp(26px, 4vw, 48px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 40px);
  margin-bottom: clamp(28px, 4vw, 46px);
}

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

.page-faq .faq-hero__title {
  margin: 0 0 clamp(16px, 2vw, 24px);
  max-width: 17ch;
}

.page-faq .faq-hero__title strong {
  font-weight: 800;
  color: var(--sd-orange);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 48ch;
}

.page-faq .faq-hero__facts {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-fact {
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-fact__num {
  display: block;
  font-family: var(--sd-mono);
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--sd-lime);
  margin-bottom: 6px;
}

.page-faq .faq-fact__text {
  display: block;
  font-size: 14px;
  line-height: 1.6;
  color: var(--sd-index);
}

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

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sd-orange), var(--sd-gold), var(--sd-lime));
}

/* ---------- 搜索与分段控件 ---------- */

.page-faq .faq-find {
  padding: clamp(26px, 4vw, 44px) 0 0;
}

.page-faq .faq-search__wrap {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .faq-search {
  display: block;
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  padding: 15px 16px 15px 18px;
  background: rgba(5, 11, 22, 0.55);
  border: 1px solid var(--sd-line-strong);
  border-left: 3px solid var(--sd-orange);
  border-radius: 0;
  color: var(--sd-mist);
  font-family: var(--sd-font);
  font-size: 16px;
  line-height: 1.4;
  appearance: none;
  transition: background 0.2s var(--sd-ease), border-color 0.2s var(--sd-ease);
}

.page-faq .faq-search::placeholder {
  color: var(--sd-index);
}

.page-faq .faq-search:focus {
  outline: 2px solid var(--sd-cyan);
  outline-offset: 2px;
  background: rgba(5, 11, 22, 0.82);
}

.page-faq .faq-tabs__list {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--faq-line);
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .faq-tab {
  flex: 0 0 auto;
  position: relative;
  padding: 14px 16px;
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--sd-index);
  font-family: var(--sd-font);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s var(--sd-ease), border-color 0.2s var(--sd-ease);
}

.page-faq .faq-tab:hover {
  color: var(--sd-gold);
}

.page-faq .faq-tab[aria-selected="true"] {
  color: var(--sd-mist);
  border-bottom-color: var(--sd-orange);
}

.page-faq .faq-tab:focus-visible {
  outline: 2px solid var(--sd-cyan);
  outline-offset: -4px;
}

.page-faq .faq-panel {
  padding-top: clamp(26px, 4vw, 46px);
}

.page-faq .faq-panel[hidden] {
  display: none;
}

/* ---------- 问答 ---------- */

.page-faq .faq-group + .faq-group {
  margin-top: clamp(38px, 5vw, 62px);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-faq .faq-group__title {
  margin: 0;
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--sd-index);
}

.page-faq .faq-list {
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-item__head {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 22px;
  gap: 10px;
  align-items: start;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__head:focus-visible {
  outline: 2px solid var(--sd-cyan);
  outline-offset: 4px;
}

.page-faq .faq-item__num {
  padding-top: 4px;
  font-family: var(--sd-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--sd-index);
  transition: color 0.2s var(--sd-ease);
}

.page-faq .faq-item__q {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--sd-mist);
  transition: color 0.2s var(--sd-ease);
}

.page-faq .faq-item__head:hover .faq-item__q {
  color: var(--sd-gold);
}

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

.page-faq .faq-item[open] .faq-item__q {
  color: #ffffff;
}

.page-faq .faq-item__sign {
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 3px;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--sd-index);
  transition: transform 0.25s var(--sd-ease), background 0.25s var(--sd-ease);
}

.page-faq .faq-item__sign::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__sign::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item[open] .faq-item__sign::before {
  background: var(--sd-orange);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .faq-item__body {
  margin: 0 0 18px;
  padding: 18px 20px 20px;
  background: var(--faq-panel-bg);
  border-left: 2px solid var(--sd-orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  animation: faq-body-in 0.3s var(--sd-ease) both;
}

.page-faq .faq-item__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(232, 237, 245, 0.86);
}

.page-faq .faq-item__body p + p {
  margin-top: 12px;
}

.page-faq .faq-item__body strong {
  font-weight: 600;
  color: var(--sd-gold);
}

.page-faq .faq-inline-link {
  color: var(--sd-cyan);
}

.page-faq .faq-inline-link:hover {
  color: var(--sd-lime);
}

.page-faq .faq-scale {
  display: block;
  width: 100%;
  max-width: 280px;
  height: auto;
  margin-top: 16px;
  overflow: visible;
}

.page-faq .faq-life-media {
  margin: 0 0 clamp(20px, 3vw, 28px);
}

@keyframes faq-body-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 收口区 ---------- */

.page-faq .faq-more {
  margin-top: clamp(48px, 7vw, 92px);
  padding: clamp(44px, 6vw, 84px) 0 clamp(40px, 6vw, 72px);
  background: linear-gradient(180deg, rgba(5, 11, 22, 0) 0%, rgba(5, 11, 22, 0.72) 46%, rgba(5, 11, 22, 0.9) 100%);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-more__grid {
  display: grid;
  gap: clamp(28px, 4vw, 40px);
}

.page-faq .faq-more__title {
  margin: 12px 0 16px;
  max-width: 22ch;
}

.page-faq .faq-more__text {
  margin: 0;
  max-width: 46ch;
}

.page-faq .faq-contact {
  display: grid;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 32px);
  padding-top: 20px;
  border-top: 1px solid var(--sd-line-strong);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  margin: 0;
}

.page-faq .faq-contact__k {
  flex: 0 0 auto;
  font-family: var(--sd-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sd-index);
}

.page-faq .faq-contact__v {
  font-family: var(--sd-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--sd-gold);
  word-break: break-word;
}

.page-faq .faq-links {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-links__link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 16px;
  align-items: baseline;
  padding: 18px 0;
  border-bottom: 1px solid var(--faq-line);
  color: var(--sd-mist);
  text-decoration: none;
  transition: color 0.2s var(--sd-ease), padding-left 0.2s var(--sd-ease);
}

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

.page-faq .faq-links__label {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .faq-links__arrow {
  font-family: var(--sd-mono);
  font-size: 15px;
  color: var(--sd-orange);
}

.page-faq .faq-links__desc {
  grid-column: 1 / -1;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sd-index);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-item__head {
    grid-template-columns: 52px minmax(0, 1fr) 22px;
    gap: 14px;
    padding: 20px 0;
  }

  .page-faq .faq-item__q {
    font-size: 17px;
  }

  .page-faq .faq-item__body {
    padding: 20px 26px 22px 66px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(40px, 5vw, 72px);
    align-items: end;
  }

  .page-faq .faq-hero__facts {
    padding-bottom: 4px;
  }

  .page-faq .faq-more__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-faq .faq-more__lede {
    position: sticky;
    top: calc(var(--sd-header-h) + 24px);
    align-self: start;
  }

  .page-faq .faq-group__lead {
    font-size: 16px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-item__head {
    grid-template-columns: 64px minmax(0, 1fr) 24px;
  }

  .page-faq .faq-item__body {
    padding-left: 78px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__body {
    animation: none;
  }

  .page-faq .faq-search,
  .page-faq .faq-tab,
  .page-faq .faq-item__head,
  .page-faq .faq-item__q,
  .page-faq .faq-item__num,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-links__link {
    transition: none;
  }
}