.page-faq {
  --faq-cut: 18px;
  --faq-edge: clamp(16px, 2.4vw, 22px);
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 20px var(--gutter) 0;
}
.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--slate);
}
.page-faq .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--slate);
  opacity: .6;
}
.page-faq .breadcrumb-link {
  color: var(--lake);
  text-decoration: none;
}
.page-faq .breadcrumb-link:hover,
.page-faq .breadcrumb-link:focus-visible {
  text-decoration: underline;
}
.page-faq .breadcrumb-current {
  color: var(--slate);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background-color: var(--night);
  background-image:
    linear-gradient(115deg, rgba(15, 156, 151, .22) 0%, rgba(15, 156, 151, 0) 48%),
    radial-gradient(circle at 88% 8%, rgba(232, 180, 74, .16), rgba(232, 180, 74, 0) 54%);
  color: var(--paper);
  padding: clamp(44px, 7vw, 92px) 0 clamp(40px, 6vw, 76px);
  overflow: hidden;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -35% -10%;
  height: 46%;
  background: linear-gradient(90deg, rgba(138, 217, 212, 0) 0%, rgba(138, 217, 212, .18) 48%, rgba(138, 217, 212, 0) 100%);
  transform: rotate(-3deg);
  pointer-events: none;
}
.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 52px);
}
.page-faq .faq-hero__kicker {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--lake-soft);
}
.page-faq .faq-hero h1 {
  margin: 0;
  font-size: clamp(30px, 5.4vw, 58px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--paper);
  max-width: 18ch;
}
.page-faq .faq-hero__intro {
  margin: 22px 0 0;
  max-width: 54ch;
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.78;
  color: rgba(244, 247, 250, .82);
}

/* ---------- 主题跳转 ---------- */
.page-faq .faq-jump {
  display: grid;
  gap: 0;
  align-self: end;
  border-top: 1px solid var(--line-dark);
}
.page-faq .faq-jump__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 4px;
  border-bottom: 1px solid var(--line-dark-soft);
  font-size: 15px;
  color: rgba(244, 247, 250, .86);
  text-decoration: none;
  transition: color .25s ease, padding-left .25s ease;
}
.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--gold);
  padding-left: 12px;
}
.page-faq .faq-jump__dot {
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--lake);
  transform: rotate(45deg);
  transition: background .25s ease;
}
.page-faq .faq-jump__link:hover .faq-jump__dot,
.page-faq .faq-jump__link:focus-visible .faq-jump__dot {
  background: var(--gold);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding: clamp(42px, 6vw, 84px) 0 clamp(48px, 7vw, 100px);
}
.page-faq .faq-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 52px);
}
.page-faq .faq-col {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
  align-content: start;
  min-width: 0;
}
.page-faq .faq-group {
  display: grid;
  gap: 13px;
  scroll-margin-top: 118px;
  min-width: 0;
}
.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 10px 0 2px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--slate);
}
.page-faq .faq-group__title::before {
  content: "";
  flex: none;
  width: 24px;
  height: 2px;
  background: var(--lake);
}

/* ---------- 问题卡片 ---------- */
.page-faq .faq-item {
  position: relative;
  background: var(--warm);
  border: 1px solid var(--line-light);
  border-left: 3px solid var(--lake);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
  transition: border-left-color .28s ease, box-shadow .28s ease, background .28s ease;
}
.page-faq .faq-item:hover {
  box-shadow: 0 14px 34px -24px rgba(14, 27, 60, .55);
}
.page-faq .faq-item[open] {
  border-left-color: var(--gold);
  background: #FFFFFF;
  box-shadow: 0 16px 38px -26px rgba(14, 27, 60, .6);
}
.page-faq .faq-item__sum {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: var(--faq-edge);
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-item__sum::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__sum::marker {
  content: "";
}
.page-faq .faq-item__sum:focus-visible {
  outline: 2px solid var(--lake);
  outline-offset: -3px;
}
.page-faq .faq-item__no {
  padding-top: 4px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--lake);
  transition: color .28s ease;
}
.page-faq .faq-item[open] .faq-item__no {
  color: var(--wine);
}
.page-faq .faq-item__q {
  font-size: clamp(16px, 1.7vw, 18px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}
.page-faq .faq-item__mark {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 7px;
}
.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 2px;
  background: var(--slate);
  transform: translateY(-50%);
  transition: transform .28s ease, background .28s ease;
}
.page-faq .faq-item__mark::after {
  transform: translateY(-50%) rotate(90deg);
}
.page-faq .faq-item[open] .faq-item__mark::before,
.page-faq .faq-item[open] .faq-item__mark::after {
  background: var(--lake);
}
.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .faq-item__ans {
  padding: 2px var(--faq-edge) clamp(18px, 2.4vw, 24px) calc(var(--faq-edge) + 42px);
  border-top: 1px solid var(--line-light);
  margin-top: 2px;
  padding-top: 14px;
}
.page-faq .faq-item__ans p {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink);
}
.page-faq .faq-item__ans p + p,
.page-faq .faq-item__ans p + .faq-steps,
.page-faq .faq-item__ans p + .faq-keys,
.page-faq .faq-item__ans p + .faq-keys__note,
.page-faq .faq-item__ans p + .faq-keyfig {
  margin-top: 14px;
}
.page-faq .faq-item__ans .text-link {
  color: var(--lake);
  text-decoration: none;
  border-bottom: 1px solid var(--line-lake);
}
.page-faq .faq-item__ans .text-link:hover,
.page-faq .faq-item__ans .text-link:focus-visible {
  color: var(--wine);
  border-bottom-color: var(--wine);
}

/* ---------- 编号步骤 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink);
}
.page-faq .faq-steps__dot {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  font-size: 12px;
  font-weight: 700;
  color: var(--warm);
  background: var(--lake);
  border-radius: 50%;
}

/* ---------- 检索键位标签 ---------- */
.page-faq .faq-keys {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.page-faq .faq-keys__tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 13px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--night);
  background: var(--paper);
  border: 1px solid var(--line-lake);
  border-bottom-width: 3px;
  border-radius: 6px;
}
.page-faq .faq-keys__note {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 迷你对照 ---------- */
.page-faq .faq-keyfig {
  display: grid;
  gap: 9px;
  margin-top: 14px;
  padding: 14px 16px;
  background: var(--paper);
  border-left: 3px solid var(--lake-soft);
}
.page-faq .faq-keyfig__title {
  margin: 0;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--slate);
}
.page-faq .faq-keyfig__list {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-keyfig__list li {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.65;
}
.page-faq .faq-keyfig__k {
  color: var(--lake);
  font-weight: 700;
}
.page-faq .faq-keyfig__d {
  color: var(--slate);
}

/* ---------- 插图 ---------- */
.page-faq .faq-figure {
  margin: 6px 0 0;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-light);
  background-color: var(--indigo);
}
.page-faq .faq-figure__cap {
  margin-top: 9px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
}

/* ---------- 收束 ---------- */
.page-faq .faq-tail {
  background-color: var(--indigo);
  background-image: linear-gradient(115deg, rgba(15, 156, 151, .2) 0%, rgba(15, 156, 151, 0) 52%);
  color: var(--paper);
  padding: clamp(38px, 5.4vw, 68px) 0;
}
.page-faq .faq-tail__inner {
  display: grid;
  gap: 22px;
}
.page-faq .faq-tail__line {
  margin: 0;
  max-width: 48ch;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.68;
  color: rgba(244, 247, 250, .9);
}
.page-faq .faq-tail__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 860px) {
  .page-faq .faq-cols {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(34px, 4.4vw, 68px);
    align-items: start;
  }
  .page-faq .faq-col--b {
    margin-top: clamp(30px, 5.4vw, 86px);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, .6fr);
    align-items: end;
    gap: clamp(36px, 5vw, 72px);
  }
  .page-faq .faq-tail__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 44px;
  }
}

@media (max-width: 640px) {
  .page-faq .faq-item__ans {
    padding-left: var(--faq-edge);
  }
  .page-faq .faq-item__sum {
    gap: 10px;
  }
  .page-faq .faq-jump__link {
    font-size: 14px;
  }
}

@media (max-width: 520px) {
  .page-faq .faq-keyfig__list li {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }
  .page-faq .faq-tail__acts .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-jump__link,
  .page-faq .faq-jump__dot,
  .page-faq .faq-item__no {
    transition: none;
  }
}