.page-faq {
  background: var(--ink);
  color: var(--chalk);
  overflow-x: hidden;
}

.page-faq .faq-crumb-wrap {
  padding-top: clamp(18px, 4vw, 40px);
}

.page-faq .breadcrumb__link {
  color: var(--mist);
  font-size: 12px;
  letter-spacing: .12em;
  text-decoration: none;
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--orange);
}

.page-faq .breadcrumb__link.is-current {
  color: var(--chalk);
}

.page-faq .breadcrumb__sep {
  color: var(--line);
  margin: 0 8px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 4.5vw, 56px) 0 clamp(34px, 6vw, 82px);
  border-bottom: 3px solid var(--line);
  background-color: var(--ink);
  background-image:
    linear-gradient(180deg, rgba(20, 53, 42, .92) 0%, rgba(14, 26, 22, .97) 78%),
    repeating-linear-gradient(0deg, rgba(44, 74, 62, .55) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, rgba(44, 74, 62, .55) 0 1px, transparent 1px 48px);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: clamp(70px, 18vw, 220px);
  height: 3px;
  background: var(--orange);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: end;
}

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

.page-faq .faq-hero .eyebrow {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  margin: 0 0 16px;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-size: clamp(30px, 5.6vw, 62px);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--chalk);
  max-width: 18ch;
}

.page-faq .faq-hero .lede {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
}

.page-faq .faq-jump__link {
  display: inline-block;
  padding: 7px 13px;
  border: 2px solid var(--line);
  color: var(--chalk);
  font-size: 13px;
  letter-spacing: .04em;
  text-decoration: none;
  background: rgba(20, 53, 42, .6);
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 106, 42, .1);
}

.page-faq .faq-hero__art {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 3px solid var(--line);
  box-shadow: 7px 7px 0 rgba(34, 26, 20, .85);
  filter: saturate(.9) contrast(1.05);
}

.page-faq .faq-hero__caption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
  letter-spacing: .04em;
}

/* ---------- 主体布局 ---------- */

.page-faq .faq-body {
  background: var(--ink);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.4vw, 48px);
  padding: clamp(30px, 5vw, 72px) 0 clamp(48px, 7vw, 104px);
}

/* 分组索引 */

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

.page-faq .faq-index__caption {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 2px solid var(--line);
  background: rgba(20, 53, 42, .5);
  color: var(--chalk);
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-index__num {
  font-size: 11px;
  color: var(--orange);
  letter-spacing: .08em;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 106, 42, .12);
  color: var(--orange);
}

/* 分组 */

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

.page-faq .faq-group {
  position: relative;
  border-top: 3px solid var(--line);
  padding-top: clamp(20px, 2.6vw, 30px);
  margin-bottom: clamp(36px, 5vw, 68px);
  scroll-margin-top: 90px;
}

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

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 16px;
  align-items: start;
  margin-bottom: clamp(16px, 2vw, 24px);
}

.page-faq .faq-group__num {
  grid-row: span 2;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--orange);
  border: 2px solid var(--orange);
  padding: 5px 8px;
  line-height: 1;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--chalk);
}

.page-faq .faq-group__note {
  grid-column: 2;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 46ch;
}

/* 手风琴 */

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

.page-faq .faq-item {
  border: 2px solid var(--line);
  background: rgba(20, 53, 42, .55);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--orange);
  background: rgba(20, 53, 42, .92);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
}

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

.page-faq .faq-item__idx {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--blue);
}

.page-faq .faq-item__text {
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.6;
  color: var(--chalk);
}

.page-faq .faq-item__a {
  padding: 14px 18px 18px;
  margin-left: 16px;
  border-top: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  max-width: 62ch;
  color: rgba(247, 245, 239, .86);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
}

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

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

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

/* 步骤对比图 */

.page-faq .faq-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 20px;
  padding: 18px;
  background: var(--cream);
  color: var(--brown);
  border: 3px solid var(--brown);
  box-shadow: var(--hard-shadow);
}

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

.page-faq .faq-steps__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .16em;
  color: rgba(34, 26, 20, .6);
}

.page-faq .faq-steps__col--new .faq-steps__label {
  color: #B23A0E;
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-faq .faq-steps__list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.55;
  border-bottom: 1px dashed rgba(34, 26, 20, .25);
  padding-bottom: 6px;
}

.page-faq .faq-steps__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-steps__num {
  flex: 0 0 auto;
  font-size: 12px;
  color: rgba(34, 26, 20, .55);
}

.page-faq .faq-steps__col--new .faq-steps__num {
  color: #B23A0E;
}

/* 数据示意配图 */

.page-faq .faq-figure {
  margin: 20px 0 0;
  border: 3px solid var(--line);
  background: rgba(20, 53, 42, .6);
  padding: 10px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.92);
}

.page-faq .faq-figure__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    padding: 22px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-faq .faq-layout {
    grid-template-columns: 246px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 28px;
    border-right: 1px solid var(--line);
    padding-right: 20px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__link {
    justify-content: flex-start;
    border: 0;
    border-left: 3px solid var(--line);
    background: transparent;
    padding: 10px 12px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--orange);
    background: rgba(255, 106, 42, .1);
  }

  .page-faq .faq-item__a {
    margin-left: 30px;
    padding-left: 22px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-layout {
    grid-template-columns: 270px minmax(0, 1fr);
    gap: 56px;
  }
}

@media print {
  .page-faq .faq-index,
  .page-faq .faq-jump {
    display: none;
  }

  .page-faq .faq-item__a {
    display: block;
  }
}