.page-faq {
  --faq-gap: clamp(20px, 3vw, 40px);
  --faq-toc-w: 232px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-top {
  position: relative;
  overflow: hidden;
  padding-block: 36px 56px;
}

.page-faq .faq-top .breadcrumb {
  margin-bottom: 28px;
  color: var(--blue-soft);
}

.page-faq .faq-top .breadcrumb a {
  color: var(--blue-soft);
}

.page-faq .faq-top .breadcrumb a:hover {
  color: var(--paper);
}

.page-faq .faq-top__grid {
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-faq .faq-top__text .eyebrow {
  color: var(--gold);
}

.page-faq .faq-top__text h1 {
  margin: 10px 0 16px;
  color: var(--paper);
  font-weight: 300;
  letter-spacing: -0.01em;
}

.page-faq .faq-top__text .lead {
  color: var(--blue-soft);
  max-width: 34em;
}

.page-faq .faq-top__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-dark);
}

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

.page-faq .faq-path {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-path__node {
  position: relative;
  flex: 1 1 150px;
  min-width: 0;
  padding: 18px 18px 8px 0;
}

.page-faq .faq-path__node::after {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red);
}

.page-faq .faq-path__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .faq-path__txt {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
}

/* ---------- 双栏问答骨架 ---------- */

.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-toc__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--blue-soft);
}

.page-faq .faq-toc__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .faq-toc__list li {
  flex: 0 0 auto;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  border-left: 2px solid transparent;
  background: var(--white);
  border-radius: var(--radius);
  color: var(--blue);
  text-decoration: none;
  white-space: nowrap;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--ink);
  border-left-color: var(--red);
  background: var(--cool);
}

.page-faq .faq-toc__num {
  font-size: 12px;
  color: var(--red);
}

.page-faq .faq-toc__name {
  font-size: 15px;
  line-height: 1.4;
}

/* ---------- 场景区块 ---------- */

.page-faq .faq-flow {
  display: grid;
  gap: 52px;
  min-width: 0;
}

.page-faq .faq-scene {
  scroll-margin-top: calc(var(--header-h) + 24px);
  min-width: 0;
}

.page-faq .faq-scene__head {
  position: relative;
  display: grid;
  gap: 8px;
  padding-top: 22px;
}

.page-faq .faq-scene__head::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 120px;
  height: 1px;
  background: linear-gradient(90deg, var(--red), rgba(200, 16, 46, 0));
}

.page-faq .faq-scene__num {
  display: block;
  font-family: var(--font-sans);
  font-weight: 200;
  font-size: clamp(44px, 9vw, 76px);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--blue-soft);
}

.page-faq .faq-scene__num--gold {
  color: var(--gold);
}

.page-faq .faq-scene__head h2 {
  margin: 0;
  color: var(--ink);
}

.page-faq .faq-scene__intro {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--blue);
}

.page-faq .faq-scene__media {
  margin: 26px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

.page-faq .faq-list {
  margin-top: 26px;
  display: grid;
  gap: 10px;
}

/* ---------- 折叠条目 ---------- */

.page-faq .faq-item {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line-light);
  border-left: 2px solid transparent;
  border-radius: var(--radius);
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}

.page-faq .faq-item[data-open] {
  border-left-color: var(--red);
  box-shadow: 0 12px 30px rgba(14, 15, 18, 0.07);
}

.page-faq .faq-item .fold__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 16px;
  background: none;
  border: 0;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.page-faq .faq-item .fold__head:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
  border-radius: var(--radius);
}

.page-faq .faq-item .fold__sign {
  position: relative;
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  border: 1px solid var(--blue-soft);
  border-radius: 50%;
  transition: border-color 200ms var(--ease);
}

.page-faq .faq-item .fold__sign::before,
.page-faq .faq-item .fold__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--blue);
  transform: translate(-50%, -50%);
  transition: transform 220ms var(--ease), opacity 220ms var(--ease), background 200ms var(--ease);
}

.page-faq .faq-item .fold__sign::before {
  width: 8px;
  height: 1.5px;
}

.page-faq .faq-item .fold__sign::after {
  width: 1.5px;
  height: 8px;
}

.page-faq .faq-item[data-open] .fold__sign {
  border-color: var(--red);
}

.page-faq .faq-item[data-open] .fold__sign::before {
  background: var(--red);
}

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

.page-faq .faq-item__q {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .faq-item .fold__body {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  transition: grid-template-rows 260ms var(--ease);
}

.page-faq .faq-item[data-open] .fold__body {
  grid-template-rows: 1fr;
}

.page-faq .faq-item .fold__inner {
  min-height: 0;
  overflow: hidden;
}

.page-faq .faq-a {
  padding: 0 16px 18px 46px;
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--blue);
}

.page-faq .faq-a a {
  color: var(--red);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

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

.page-faq .faq-scene__foot {
  margin: 18px 0 0;
  font-size: 13px;
  color: var(--blue-soft);
}

.page-faq .faq-scene__foot a {
  color: var(--red);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- 人工协助 ---------- */

.page-faq .faq-help__grid {
  display: grid;
  gap: 32px;
}

.page-faq .faq-help__lead {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-help__lead h2 {
  margin: 0;
  color: var(--paper);
}

.page-faq .faq-help__text {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--blue-soft);
}

.page-faq .faq-help__text a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-help__lead .action-row {
  margin-top: 8px;
}

.page-faq .faq-list--dark {
  margin-top: 0;
}

.page-faq .faq-list--dark .faq-item {
  background: rgba(244, 245, 247, 0.045);
  border-color: var(--line-dark);
}

.page-faq .faq-list--dark .faq-item[data-open] {
  background: rgba(244, 245, 247, 0.08);
  border-left-color: var(--red);
  box-shadow: none;
}

.page-faq .faq-list--dark .faq-item__q {
  color: var(--paper);
}

.page-faq .faq-list--dark .faq-a p {
  color: var(--blue-soft);
}

.page-faq .faq-list--dark .faq-item .fold__sign {
  border-color: var(--blue-soft);
}

.page-faq .faq-list--dark .faq-item .fold__sign::before,
.page-faq .faq-list--dark .faq-item .fold__sign::after {
  background: var(--paper);
}

.page-faq .faq-list--dark .faq-item[data-open] .fold__sign {
  border-color: var(--gold);
}

.page-faq .faq-list--dark .faq-item[data-open] .fold__sign::before {
  background: var(--gold);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-top {
    padding-block: 48px 64px;
  }

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

  .page-faq .faq-item .fold__head {
    padding: 20px 22px;
  }

  .page-faq .faq-a {
    padding: 0 22px 22px 52px;
  }

  .page-faq .faq-scene__head {
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-areas:
      "num title"
      "num intro";
    column-gap: 24px;
    row-gap: 6px;
    align-items: start;
  }

  .page-faq .faq-scene__num {
    grid-area: num;
  }

  .page-faq .faq-scene__head h2 {
    grid-area: title;
    align-self: end;
  }

  .page-faq .faq-scene__intro {
    grid-area: intro;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-top__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    column-gap: 56px;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    column-gap: 56px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-toc-w) minmax(0, 1fr);
    column-gap: 64px;
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

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

  .page-faq .faq-toc__list li {
    flex: 1 1 auto;
  }

  .page-faq .faq-toc__link {
    background: transparent;
    border-radius: 0;
    padding: 10px 12px 10px 16px;
    white-space: normal;
  }

  .page-faq .faq-flow {
    gap: 76px;
  }

  .page-faq .faq-scene:nth-child(even) .faq-scene__head::before {
    left: auto;
    right: 0;
    background: linear-gradient(270deg, var(--red), rgba(200, 16, 46, 0));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item .fold__body,
  .page-faq .faq-item .fold__sign::before,
  .page-faq .faq-item .fold__sign::after,
  .page-faq .faq-toc__link,
  .page-faq .faq-item {
    transition: none;
  }
}