.page-faq {
  --faq-no-w: 2.35rem;
  --faq-gap: 0.75rem;
  padding-bottom: 4.5rem;
}

.page-faq .wrap {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 1.15rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 1.5rem 0 2.25rem;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 1.9rem;
  right: 0;
  width: 3.5rem;
  height: 0.32rem;
  background: var(--lime);
  border-radius: 2px;
  transform: rotate(-4deg);
  transform-origin: right center;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 0.9rem;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mute);
  text-transform: uppercase;
}

.page-faq .faq-hero__title {
  margin: 0 0 1.15rem;
  font-size: clamp(2.3rem, 12vw, 5.6rem);
  line-height: 0.96;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text);
}

.page-faq .faq-hero__lede {
  max-width: 44ch;
  margin: 0 0 1.5rem;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(221, 230, 242, 0.82);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mute);
}

.page-faq .faq-hero__meta li {
  position: relative;
  padding-left: 0.75rem;
}

.page-faq .faq-hero__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.52em;
  width: 5px;
  height: 5px;
  background: var(--blue);
  border-radius: 1px;
}

/* ---------- 编号索引 ---------- */
.page-faq .faq-jump {
  margin-top: 1.75rem;
}

.page-faq .faq-jump__ttl {
  margin: 0 0 0.85rem;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mute);
  text-transform: uppercase;
}

.page-faq .faq-jump__list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11.5rem, 1fr));
  gap: 0.15rem 1.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__list a {
  display: grid;
  grid-template-columns: 1.85rem 1fr;
  gap: 0.55rem;
  align-items: baseline;
  padding: 0.42rem 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mute);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-jump__list a .mono {
  font-size: 12px;
  color: rgba(138, 151, 168, 0.7);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-jump__list a:hover,
.page-faq .faq-jump__list a:focus-visible {
  color: var(--text);
  border-bottom-color: var(--line-strong);
}

.page-faq .faq-jump__list a:hover .mono,
.page-faq .faq-jump__list a:focus-visible .mono {
  color: var(--lime);
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  margin-top: 3rem;
}

.page-faq .faq-sec__head {
  display: grid;
  grid-template-columns: var(--faq-no-w) 1fr;
  gap: 0 var(--faq-gap);
  align-items: baseline;
  padding-bottom: 0.85rem;
  margin-bottom: 0.5rem;
  border-bottom: 2px solid var(--track);
}

.page-faq .faq-sec__no {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-faq .faq-sec__title {
  margin: 0;
  font-size: clamp(1.3rem, 5.4vw, 2.05rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text);
}

.page-faq .faq-sec__note {
  grid-column: 2;
  margin: 0.6rem 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  display: block;
}

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

.page-faq .qa__sum {
  position: relative;
  display: grid;
  grid-template-columns: var(--faq-no-w) 1fr;
  gap: var(--faq-gap);
  align-items: baseline;
  padding: 0.95rem 1.65rem 0.95rem 0;
  cursor: pointer;
  list-style: none;
  transition: color 0.2s var(--ease);
}

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

.page-faq .qa__sum::after {
  content: "";
  position: absolute;
  right: 0.35rem;
  top: 1.25rem;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 1.5px solid var(--mute);
  border-bottom: 1.5px solid var(--mute);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .qa[open] > .qa__sum::after {
  transform: rotate(225deg);
  border-color: var(--lime);
}

.page-faq .qa__sum:hover .qa__q,
.page-faq .qa__sum:focus-visible .qa__q {
  color: var(--lime);
}

.page-faq .qa__no {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(138, 151, 168, 0.72);
  transition: color 0.25s var(--ease);
}

.page-faq .qa[open] > .qa__sum .qa__no {
  color: var(--lime);
}

.page-faq .qa__q {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.005em;
  color: var(--text);
  transition: color 0.2s var(--ease);
}

.page-faq .qa__ans {
  padding: 0 0.5rem 1.15rem 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(221, 230, 242, 0.82);
}

.page-faq .qa__ans > p {
  margin: 0 0 0.7rem;
}

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

.page-faq .qa__cal {
  display: block;
  margin-top: 0.7rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--line);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--mute);
}

.page-faq .qa__cal a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px dashed rgba(79, 168, 255, 0.55);
}

.page-faq .qa__cal a:hover,
.page-faq .qa__cal a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 步骤列表 ---------- */
.page-faq .steps {
  margin: 0.2rem 0 0.9rem;
  padding: 0;
  list-style: none;
}

.page-faq .steps__i {
  position: relative;
  display: grid;
  grid-template-columns: 1.55rem 1fr;
  gap: 0.7rem;
  padding-bottom: 1rem;
}

.page-faq .steps__i::before {
  content: "";
  position: absolute;
  left: 0.75rem;
  top: 1.45rem;
  bottom: 0.15rem;
  width: 1px;
  background: var(--line-strong);
}

.page-faq .steps__i:last-child::before {
  display: none;
}

.page-faq .steps__n {
  font-size: 12px;
  line-height: 1.7;
  color: var(--lime);
  letter-spacing: 0.04em;
}

.page-faq .steps__txt {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(221, 230, 242, 0.84);
}

/* ---------- 图文分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 1.35rem;
  margin-top: 0.75rem;
}

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

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

.page-faq .faq-split__body .qa:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .fig {
  border-radius: var(--r);
  overflow: hidden;
  background: linear-gradient(160deg, var(--track), var(--panel));
}

.page-faq .fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-faq .fig--wide img {
  aspect-ratio: auto;
}

.page-faq .fig--wide {
  margin: 0.4rem 0 1.45rem;
}

.page-faq .fig--wide figcaption,
.page-faq .faq-split__fig figcaption {
  display: block;
  padding: 0.6rem 0.85rem 0.75rem;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mute);
  background: var(--panel);
}

/* ---------- 奶油纸分区 ---------- */
.page-faq .faq-sec--paper {
  padding: 1.6rem 1.1rem 1.35rem;
  background: var(--paper);
  color: var(--paper-ink);
  border-radius: 22px;
  border-bottom: 0;
}

.page-faq .faq-sec--paper .faq-sec__head {
  border-bottom-color: rgba(36, 26, 18, 0.22);
}

.page-faq .faq-sec--paper .faq-sec__no {
  color: var(--red);
}

.page-faq .faq-sec--paper .faq-sec__title {
  color: var(--paper-ink);
}

.page-faq .faq-sec--paper .faq-sec__note {
  color: rgba(36, 26, 18, 0.72);
}

.page-faq .faq-sec--paper .qa {
  border-bottom-color: rgba(36, 26, 18, 0.16);
}

.page-faq .faq-sec--paper .qa__sum::after {
  border-color: rgba(36, 26, 18, 0.55);
}

.page-faq .faq-sec--paper .qa[open] > .qa__sum::after {
  border-color: var(--red);
}

.page-faq .faq-sec--paper .qa__no {
  color: rgba(36, 26, 18, 0.5);
}

.page-faq .faq-sec--paper .qa[open] > .qa__sum .qa__no {
  color: var(--red);
}

.page-faq .faq-sec--paper .qa__q {
  color: var(--paper-ink);
}

.page-faq .faq-sec--paper .qa__sum:hover .qa__q,
.page-faq .faq-sec--paper .qa__sum:focus-visible .qa__q {
  color: var(--red);
}

.page-faq .faq-sec--paper .qa__ans {
  color: rgba(36, 26, 18, 0.8);
}

.page-faq .faq-sec--paper .qa__cal {
  border-top-color: rgba(36, 26, 18, 0.16);
  color: rgba(36, 26, 18, 0.62);
}

.page-faq .faq-sec--paper .qa__cal a {
  color: #1c5a8f;
  border-bottom-color: rgba(28, 90, 143, 0.5);
}

.page-faq .faq-sec--paper .qa__cal a:hover,
.page-faq .faq-sec--paper .qa__cal a:focus-visible {
  color: var(--red);
  border-bottom-color: var(--red);
}

/* ---------- 页尾入口 ---------- */
.page-faq .faq-more {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  margin-top: 3rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--line);
}

.page-faq .faq-more a {
  padding: 0.42rem 0.85rem;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--mute);
  text-decoration: none;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-more a:hover,
.page-faq .faq-more a:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .qa__ans {
    padding-left: calc(var(--faq-no-w) + var(--faq-gap));
    padding-right: 1.65rem;
  }

  .page-faq .qa-sec--paper,
  .page-faq .faq-sec--paper {
    padding: 1.9rem 1.6rem 1.6rem;
  }
}

@media (min-width: 900px) {
  .page-faq {
    --faq-no-w: 3.4rem;
    --faq-gap: 1.05rem;
  }

  .page-faq .wrap {
    padding-inline: 2.25rem;
  }

  .page-faq .faq-hero {
    padding: 2.5rem 0 3rem;
  }

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

  .page-faq .faq-jump {
    margin-top: 2.25rem;
  }

  .page-faq .faq-sec {
    margin-top: 4rem;
  }

  .page-faq .qa__sum {
    padding-top: 1.15rem;
    padding-bottom: 1.15rem;
  }

  .page-faq .qa__sum::after {
    top: 1.5rem;
  }

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

  .page-faq .qa__ans {
    padding-bottom: 1.5rem;
    font-size: 15px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 2.25rem;
    align-items: start;
  }

  .page-faq .faq-split__fig {
    position: sticky;
    top: 1.5rem;
  }

  .page-faq .faq-sec--paper {
    padding: 2.4rem 2.25rem 2rem;
    border-radius: 26px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-sec__note {
    max-width: 62ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__sum::after,
  .page-faq .qa__no,
  .page-faq .qa__q,
  .page-faq .faq-jump__list a,
  .page-faq .faq-more a,
  .page-faq .faq-hero::before {
    transition: none;
  }

  .page-faq .faq-hero::before {
    transform: none;
  }
}