.page-faq {
  --faq-rail: 246px;
  --faq-gap: clamp(1.6rem, 4vw, 3.4rem);
  background: var(--kk-ink);
  color: var(--kk-paper-88);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

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

.page-faq .faq-top {
  padding-top: clamp(1.2rem, 4vw, 2.2rem);
}

.page-faq .faq-link {
  color: var(--kk-mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(95, 242, 210, .45);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  border-bottom-color: var(--kk-mint);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  display: grid;
  gap: 1.8rem;
  padding: clamp(1.5rem, 5vw, 2.8rem) 0 clamp(2rem, 5vw, 3rem);
  border-bottom: 1px solid var(--kk-line);
}

.page-faq .faq-hero__kicker {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--kk-clay);
  margin-bottom: 1rem;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.15rem, 7.2vw, 4.4rem);
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--kk-paper);
  margin-bottom: 1.1rem;
}

.page-faq .faq-hero__title em {
  font-style: normal;
  color: var(--kk-mint);
}

.page-faq .faq-hero__lead {
  max-width: 36ch;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--kk-paper-76);
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.4rem;
}

.page-faq .faq-tag {
  display: inline-flex;
  align-items: center;
  padding: .35rem .8rem;
  border: 1px solid var(--kk-line);
  border-radius: 999px;
  font-size: .8125rem;
  color: var(--kk-paper-76);
}

.page-faq .faq-tag--mint {
  border-color: rgba(95, 242, 210, .5);
  color: var(--kk-mint);
}

.page-faq .faq-tag--violet {
  border-color: rgba(142, 107, 255, .55);
  color: var(--kk-violet);
}

.page-faq .faq-tag--track {
  border-color: rgba(242, 107, 58, .5);
  color: var(--kk-track);
}

.page-faq .faq-hero__board {
  background: var(--kk-panel);
  border: 1px solid var(--kk-line);
  border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1.1rem;
  box-shadow: var(--shadow-card);
}

.page-faq .faq-hero__board-title {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--kk-mint);
  margin-bottom: .9rem;
}

.page-faq .faq-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-faq .faq-quick__link {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  padding: .7rem .8rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: rgba(11, 43, 38, .55);
  color: var(--kk-paper);
  font-size: .9375rem;
  text-decoration: none;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-quick__link:hover,
.page-faq .faq-quick__link:focus-visible {
  border-color: var(--kk-mint);
  background: var(--kk-mint-soft);
}

.page-faq .faq-quick__num {
  font-size: .75rem;
  color: var(--kk-clay);
}

.page-faq .faq-hero__board-note {
  margin-top: 1rem;
  font-size: .8125rem;
  line-height: 1.65;
  color: var(--kk-paper-60);
}

/* ---------- 主体两栏 ---------- */

.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  padding-top: clamp(1.8rem, 5vw, 3rem);
}

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

.page-faq .faq-index__label {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--kk-paper-60);
  margin-bottom: .7rem;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 .4rem;
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  scrollbar-width: thin;
  scroll-snap-type: x proximity;
}

.page-faq .faq-index__link {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .55rem .9rem;
  border: 1px solid var(--kk-line);
  border-radius: 999px;
  color: var(--kk-paper-76);
  font-size: .875rem;
  white-space: nowrap;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--kk-mint);
  border-color: var(--kk-mint);
}

.page-faq .faq-index__num {
  font-size: .75rem;
  color: var(--kk-clay);
}

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

/* ---------- 分组 ---------- */

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

.page-faq .faq-group + .faq-group {
  margin-top: clamp(2.2rem, 5vw, 3.4rem);
}

.page-faq .faq-group__head {
  display: grid;
  gap: .45rem;
  padding-bottom: .9rem;
  border-bottom: 1px solid var(--kk-line);
}

.page-faq .faq-group__num {
  font-size: .8125rem;
  letter-spacing: .14em;
  color: var(--kk-clay);
}

.page-faq .faq-group__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 4vw, 2.15rem);
  line-height: 1.08;
  color: var(--kk-paper);
}

.page-faq .faq-group__lead {
  max-width: 34ch;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--kk-paper-60);
}

.page-faq .faq-group__split {
  display: grid;
  gap: 1.5rem;
}

/* ---------- 折叠条目 ---------- */

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

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

.page-faq .faq-item:first-child {
  border-top: none;
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  padding: 1.05rem .2rem 1.05rem 0;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--kk-paper);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--kk-mint);
}

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

.page-faq .faq-item__q:hover {
  color: var(--kk-mint);
}

.page-faq .faq-item__n {
  flex: 0 0 auto;
  font-size: .75rem;
  font-weight: 400;
  color: var(--kk-clay);
}

.page-faq .faq-item__a {
  padding: 0 0 1.15rem 2.15rem;
}

.page-faq .faq-item__a p {
  max-width: 44ch;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--kk-paper-76);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, var(--kk-mint-soft), transparent 62%);
}

/* ---------- 手机截图 ---------- */

.page-faq .faq-phone {
  margin: 0 auto;
  max-width: 250px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--kk-line);
  background: var(--kk-slate);
}

.page-faq .faq-phone figcaption {
  padding: .7rem .85rem .85rem;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--kk-paper-60);
}

/* ---------- 快速路径 ---------- */

.page-faq .faq-path {
  margin-top: clamp(2.4rem, 6vw, 3.6rem);
  padding: clamp(1.4rem, 4vw, 2.2rem);
  border: 1px solid var(--kk-line);
  border-radius: var(--radius);
  background: var(--kk-panel);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-path__head {
  display: grid;
  gap: .45rem;
  margin-bottom: 1.3rem;
}

.page-faq .faq-path__num {
  font-size: .8125rem;
  letter-spacing: .14em;
  color: var(--kk-mint);
}

.page-faq .faq-path__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 4vw, 2.15rem);
  line-height: 1.08;
  color: var(--kk-paper);
}

.page-faq .faq-path__lead {
  max-width: 34ch;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--kk-paper-60);
}

.page-faq .faq-path__figure {
  margin: 0 0 1.5rem;
  border: 1px solid var(--kk-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-faq .faq-path__figure figcaption {
  padding: .65rem .85rem .8rem;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--kk-paper-60);
}

.page-faq .faq-path__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .8rem;
}

.page-faq .faq-step {
  position: relative;
  padding: .95rem 1rem 1rem;
  border: 1px solid var(--kk-line);
  border-left: 2px solid var(--kk-moss);
  border-radius: var(--radius-sm);
  background: rgba(11, 43, 38, .5);
}

.page-faq .faq-step:first-child {
  border-left-color: var(--kk-mint);
}

.page-faq .faq-step__num {
  display: block;
  font-size: .75rem;
  color: var(--kk-clay);
  margin-bottom: .35rem;
}

.page-faq .faq-step__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.2;
  color: var(--kk-paper);
  margin-bottom: .35rem;
}

.page-faq .faq-step__link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .faq-step__link:hover,
.page-faq .faq-step__link:focus-visible {
  color: var(--kk-mint);
  border-bottom-color: var(--kk-mint);
}

.page-faq .faq-step__text {
  font-size: .875rem;
  line-height: 1.65;
  color: var(--kk-paper-76);
}

.page-faq .faq-path__note {
  margin-top: 1.2rem;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--kk-paper-60);
}

/* ---------- 平板及以上 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-group__split {
    grid-template-columns: minmax(0, 1fr) 230px;
    align-items: start;
    gap: 1.6rem;
  }

  .page-faq .faq-phone {
    max-width: none;
  }

  .page-faq .faq-path__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
  }

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

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

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow: visible;
    gap: .25rem;
    padding-bottom: 0;
    scroll-snap-type: none;
  }

  .page-faq .faq-index__link {
    border: none;
    border-left: 2px solid var(--kk-line);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: .6rem .7rem;
    white-space: normal;
    line-height: 1.4;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--kk-mint);
    background: var(--kk-mint-soft);
  }

  .page-faq .faq-path__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__link,
  .page-faq .faq-index__link {
    transition: none;
  }
}
<<<END>>>