.page-faq {
  background:
    radial-gradient(760px 460px at 94% -6%, rgba(47, 227, 210, 0.10), transparent 62%),
    radial-gradient(680px 420px at -10% 16%, rgba(255, 107, 74, 0.07), transparent 66%);
  padding-bottom: 88px;
  color: #fff;
}

.page-faq .breadcrumbs {
  display: flex;
  gap: 8px;
  align-items: center;
  padding-top: 22px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--slate-300);
}

.page-faq .breadcrumbs a {
  color: var(--slate-300);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--cyan-400);
}

.page-faq .breadcrumbs [aria-current="page"] {
  color: #fff;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 28px 0 8px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-faq .faq-hero__copy .eyebrow {
  color: var(--cyan-400);
}

.page-faq .display--xl {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.2vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.page-faq .lede {
  max-width: 46ch;
  color: var(--slate-300);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-stat {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 15px;
  border: var(--line);
  border-radius: 999px;
  background: rgba(14, 36, 56, 0.6);
  color: var(--slate-300);
  font-size: 13px;
}

.page-faq .faq-stat b {
  color: var(--cyan-400);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
}

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

.page-faq .faq-hero__figure .figure__media {
  border: var(--line);
  border-radius: 28px 12px 28px 12px;
  overflow: hidden;
  background: var(--ink-700);
}

.page-faq .faq-hero__figure img,
.page-faq .faq-cats__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .figure__caption {
  margin-top: 10px;
  color: var(--slate-300);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- 通用小标题 ---------- */
.page-faq .faq-h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 4.4vw, 32px);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-sub {
  max-width: 60ch;
  margin: 0;
  color: var(--slate-300);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index {
  padding-top: 56px;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-faq .faq-jump a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--steel-500);
  border-radius: 999px;
  background: var(--ink-700);
  color: #fff;
  font-size: 13.5px;
  text-decoration: none;
  transition: border-color 0.24s var(--ease), color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-faq .faq-jump a .num {
  color: var(--cyan-400);
  font-size: 12px;
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
  transform: translateY(-2px);
}

.page-faq .faq-cats {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-faq .faq-cats__figure {
  display: none;
  margin: 0;
}

.page-faq .faq-cat-grid {
  display: grid;
  gap: 14px;
}

.page-faq .faq-cat {
  display: block;
  padding: 22px 22px 20px;
  border: 1px solid var(--steel-500);
  background: linear-gradient(160deg, var(--ink-700) 0%, rgba(14, 36, 56, 0.72) 100%);
  color: #fff;
  text-decoration: none;
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-faq .faq-cat--a { border-radius: 28px 12px 12px 12px; }
.page-faq .faq-cat--b { border-radius: 12px 28px 12px 12px; }
.page-faq .faq-cat--c { border-radius: 12px 12px 12px 28px; }
.page-faq .faq-cat--d { border-radius: 12px 12px 28px 12px; }

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  border-color: var(--cyan-400);
  transform: translateY(-3px);
}

.page-faq .faq-cat__num {
  display: inline-block;
  color: var(--cyan-400);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .faq-cat__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.3;
}

.page-faq .faq-cat__text {
  margin: 0 0 14px;
  color: var(--slate-300);
  font-size: 14px;
  line-height: 1.75;
}

.page-faq .faq-cat__more {
  display: inline-block;
  color: var(--coral-500);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* ---------- 两步动线 ---------- */
.page-faq .faq-flow-wrap {
  padding-top: 64px;
}

.page-faq .faq-flow {
  position: relative;
  display: grid;
  gap: 14px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-flow__step {
  position: relative;
  display: flex;
  gap: 16px;
  padding: 20px 20px 22px;
  border: 1px solid var(--steel-500);
  border-radius: 18px;
  background: rgba(14, 36, 56, 0.85);
}

.page-faq .faq-flow__num {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px dashed var(--cyan-400);
  border-radius: 999px;
  color: var(--cyan-400);
  font-size: 15px;
}

.page-faq .faq-flow__step--end .faq-flow__num {
  border-style: solid;
  border-color: var(--coral-500);
  background: var(--coral-500);
  color: var(--ink-900);
}

.page-faq .faq-flow__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
}

.page-faq .faq-flow__text {
  margin: 0;
  color: var(--slate-300);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .faq-flow__note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--amber-400);
  color: var(--slate-300);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  padding-top: 64px;
  display: grid;
  gap: 18px;
  scroll-margin-top: 24px;
}

.page-faq .faq-group__head {
  border-top: 2px solid var(--steel-500);
  padding-top: 16px;
}

.page-faq .faq-group__num {
  display: block;
  color: var(--cyan-400);
  font-size: 12px;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.page-faq .faq-group__hint {
  margin: 0;
  color: var(--slate-300);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  border: 1px solid var(--steel-500);
  border-radius: 14px;
  background: rgba(14, 36, 56, 0.78);
  overflow: hidden;
  transition: border-color 0.24s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--cyan-600);
  background: rgba(27, 58, 84, 0.55);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: -3px;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  color: var(--steel-500);
  font-size: 13px;
  transition: color 0.24s var(--ease);
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--coral-500);
}

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--cyan-400);
  transform: translateY(-50%);
  transition: transform 0.24s var(--ease), opacity 0.24s var(--ease);
}

.page-faq .faq-item__mark::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 16px 16px;
  border-top: 1px solid rgba(169, 188, 203, 0.14);
  margin-top: 2px;
}

.page-faq .faq-item__a p {
  margin: 14px 0 0;
  color: var(--slate-300);
  font-size: 14.5px;
  line-height: 1.85;
}

/* ---------- 渠道对比 ---------- */
.page-faq .faq-channels {
  padding-top: 64px;
}

.page-faq .faq-channel-grid {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-faq .faq-channel {
  padding: 24px 22px;
  border: 1px solid var(--steel-500);
  background:
    radial-gradient(320px 180px at 100% 0%, rgba(47, 227, 210, 0.12), transparent 70%),
    var(--ink-700);
}

.page-faq .faq-channel:first-child { border-radius: 24px 12px 24px 12px; }
.page-faq .faq-channel:last-child { border-radius: 12px 24px 12px 24px; }

.page-faq .faq-channel__tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(47, 227, 210, 0.14);
  color: var(--cyan-400);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-faq .faq-channel__title {
  margin: 14px 0 6px;
  font-size: 18px;
  font-weight: 800;
}

.page-faq .faq-channel__value {
  margin: 0 0 10px;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 15px;
  word-break: break-all;
}

.page-faq .faq-channel__text {
  margin: 0 0 16px;
  color: var(--slate-300);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--coral-500);
  border-radius: 999px;
  background: transparent;
  color: var(--coral-300);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.24s var(--ease), color 0.24s var(--ease);
}

.page-faq .faq-copy:hover,
.page-faq .faq-copy:focus-visible {
  background: var(--coral-500);
  color: var(--ink-900);
}

/* ---------- 结尾建议 ---------- */
.page-faq .faq-next {
  padding-top: 72px;
}

.page-faq .faq-next__grid {
  display: grid;
  gap: 20px;
  padding: 28px 22px;
  border: 1px solid var(--steel-500);
  border-radius: 28px;
  background:
    radial-gradient(520px 300px at 8% 0%, rgba(255, 107, 74, 0.10), transparent 66%),
    rgba(7, 21, 35, 0.9);
}

.page-faq .faq-next__copy .eyebrow {
  color: var(--coral-300);
}

.page-faq .faq-checklist {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checklist li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 11px 14px;
  border: 1px dashed var(--steel-500);
  border-radius: 12px;
  color: var(--slate-300);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .faq-checklist .num {
  color: var(--cyan-400);
  font-size: 12px;
}

.page-faq .faq-next__aside {
  padding: 20px;
  border-radius: 18px;
  background: rgba(14, 36, 56, 0.9);
  border: 1px solid var(--steel-500);
}

.page-faq .faq-next__aside-title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-faq .faq-next__links {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-next__links a {
  display: block;
  padding: 9px 0;
  border-bottom: 1px solid rgba(169, 188, 203, 0.14);
  color: var(--slate-300);
  font-size: 14px;
  line-height: 1.6;
  text-decoration: none;
  transition: color 0.24s var(--ease), padding-left 0.24s var(--ease);
}

.page-faq .faq-next__links li:last-child a {
  border-bottom: 0;
}

.page-faq .faq-next__links a:hover,
.page-faq .faq-next__links a:focus-visible {
  color: var(--cyan-400);
  padding-left: 6px;
}

.page-faq .faq-next__note {
  margin: 16px 0 0;
  color: var(--slate-300);
  font-size: 12.5px;
  line-height: 1.7;
}

/* ---------- 桌面 ---------- */
@media (min-width: 860px) {
  .page-faq .faq-hero {
    padding-top: 44px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
  }

  .page-faq .faq-cats {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 18px;
    align-items: stretch;
  }

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

  .page-faq .faq-cats__figure .figure__media {
    border: var(--line);
    border-radius: 28px 12px 12px 12px;
    overflow: hidden;
    background: var(--ink-700);
    height: 100%;
  }

  .page-faq .faq-cats__figure img {
    height: 100%;
    object-fit: cover;
  }

  .page-faq .faq-cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

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

  .page-faq .faq-flow__step {
    border-radius: 18px 0 0 18px;
  }

  .page-faq .faq-flow__step + .faq-flow__step {
    border-radius: 0 18px 18px 0;
    border-left: 0;
  }

  .page-faq .faq-flow__step::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -18px;
    width: 36px;
    border-top: 2px dashed var(--cyan-600);
    transform: translateY(-50%);
    z-index: 2;
  }

  .page-faq .faq-flow__step--end::after {
    display: none;
  }

  .page-faq .faq-group {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-group__head {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-item summary {
    padding: 17px 22px;
  }

  .page-faq .faq-item__q {
    font-size: 15.5px;
  }

  .page-faq .faq-item__a {
    padding: 0 22px 18px;
  }

  .page-faq .faq-channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-next__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 32px;
    padding: 40px 36px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-jump a,
  .page-faq .faq-copy,
  .page-faq .faq-next__links a {
    transition: none;
  }
}
<<<END>>>