.page-faq{
  --faq-gap: clamp(16px, 3vw, 26px);
  background: var(--ink-900);
  color: var(--text-dark);
  font-family: var(--font-display);
}

.page-faq a{ color: inherit; }

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position: relative;
  padding: clamp(22px, 4vw, 42px) 0 clamp(36px, 6vw, 82px);
  background:
    radial-gradient(130% 90% at 88% -12%, rgba(79,227,208,.16), transparent 62%),
    radial-gradient(85% 65% at -8% 108%, rgba(255,122,89,.12), transparent 70%),
    var(--ink-900);
  overflow: hidden;
}
.page-faq .faq-hero::after{
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(214,228,236,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(214,228,236,.045) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}
.page-faq .faq-hero__grid{
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 5vw, 48px);
}
.page-faq .breadcrumb{ margin-bottom: 22px; }

.page-faq h1{
  margin: 14px 0 0;
  font-size: clamp(30px, 6vw, 56px);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: .04em;
  color: var(--paper);
}
.page-faq h1 .hl{ color: var(--cyan); }

.page-faq .faq-hero__lead{
  margin: 20px 0 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-dark);
}
.page-faq .faq-hero__facts{
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}
.page-faq .faq-hero__facts li{ display: flex; align-items: baseline; gap: 7px; }
.page-faq .faq-hero__facts .mono{
  font-family: var(--font-data);
  font-size: 18px;
  color: var(--cyan);
}

.page-faq .faq-mini{
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 20px 18px;
  background: linear-gradient(180deg, rgba(11,42,66,.78), rgba(11,42,66,.42));
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.page-faq .faq-mini__title{
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan-soft);
}
.page-faq .faq-mini__steps{
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq .faq-mini__steps li{
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-top: 1px dashed var(--line-soft);
}
.page-faq .faq-mini__steps li:first-child{ border-top: 0; }
.page-faq .faq-mini__num{
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
  padding-top: 3px;
}
.page-faq .faq-mini__body{
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dark);
}
.page-faq .faq-mini__body strong{
  display: block;
  font-weight: 500;
  color: var(--paper);
  letter-spacing: .04em;
}

/* ---------- 通用分节 ---------- */
.page-faq .faq-sec{
  padding: clamp(40px, 6vw, 82px) 0;
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-sec--deep{
  background:
    radial-gradient(90% 70% at 100% 0%, rgba(79,227,208,.09), transparent 65%),
    var(--ink-800);
}
.page-faq .faq-sec--paper{
  background: var(--paper);
  color: var(--text-on-paper);
  border-top-color: rgba(16,25,34,.14);
}
.page-faq .faq-sec__num{
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--cyan);
}
.page-faq .faq-sec--paper .faq-sec__num{ color: var(--ink-700); }

.page-faq h2{
  margin: 10px 0 0;
  font-size: clamp(24px, 4.2vw, 38px);
  font-weight: 300;
  line-height: 1.28;
  letter-spacing: .03em;
  color: var(--paper);
}
.page-faq .faq-sec--paper h2{ color: var(--text-on-paper); }

.page-faq .faq-lead{
  margin: 14px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-dark);
}
.page-faq .faq-sec--paper .faq-lead{ color: rgba(16,25,34,.76); }

/* ---------- 三个入口 ---------- */
.page-faq .entry-grid{
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(24px, 4vw, 40px);
}
.page-faq .entry{
  position: relative;
  padding: 22px 20px 20px;
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--line-strong);
  border-radius: 3px;
  background: rgba(11,42,66,.46);
  transition: border-color .35s var(--ease), background .35s var(--ease), transform .35s var(--ease);
}
.page-faq .entry:hover,
.page-faq .entry:focus-within{
  border-color: var(--line-strong);
  border-top-color: var(--cyan);
  background: rgba(11,42,66,.86);
  transform: translateY(-3px);
}
.page-faq .entry__idx{
  margin: 0;
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: .22em;
  color: var(--cyan);
}
.page-faq .entry h3{
  margin: 12px 0 0;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--paper);
}
.page-faq .entry p{
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-dark);
}
.page-faq .entry__link{
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.page-faq .entry__link::after{
  content: "→";
  transition: transform .3s var(--ease);
}
.page-faq .entry__link:hover,
.page-faq .entry__link:focus-visible{
  color: var(--paper);
  border-bottom-color: var(--cyan);
}
.page-faq .entry__link:hover::after{ transform: translateX(4px); }

/* ---------- 图 ---------- */
.page-faq .faq-figure{
  margin: clamp(24px, 4vw, 40px) 0 0;
}
.page-faq .faq-figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure figcaption{
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--muted);
}
.page-faq .faq-sec--paper .faq-figure figcaption{ color: rgba(16,25,34,.6); }

/* ---------- 编号拆解 ---------- */
.page-faq .code-board{
  margin-top: clamp(22px, 4vw, 36px);
  padding: clamp(18px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--ink-700);
}
.page-faq .code-board__full{
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(20px, 4.6vw, 34px);
  letter-spacing: .1em;
  color: var(--paper);
  word-break: break-word;
}
.page-faq .code-segs{
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.page-faq .code-seg{
  padding: 12px 14px;
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  background: rgba(5,25,43,.6);
  transition: background .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
.page-faq .code-seg:hover,
.page-faq .code-seg:focus,
.page-faq .code-seg:focus-visible{
  background: rgba(79,227,208,.10);
  border-color: var(--line-strong);
  transform: translateY(-2px);
  outline: none;
}
.page-faq .code-seg__val{
  display: block;
  font-family: var(--font-data);
  font-size: 20px;
  letter-spacing: .12em;
  color: var(--cyan);
}
.page-faq .code-seg__key{
  display: block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--paper);
}
.page-faq .code-seg__desc{
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
  transition: color .3s var(--ease);
}
.page-faq .code-seg:hover .code-seg__desc,
.page-faq .code-seg:focus .code-seg__desc{ color: var(--text-dark); }

.page-faq .code-rules{
  list-style: none;
  margin: clamp(22px, 3.5vw, 34px) 0 0;
  padding: 0;
}
.page-faq .code-rules li{
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 15px 0;
  border-top: 1px solid var(--line-soft);
}
.page-faq .code-rules li:first-child{ border-top: 0; }
.page-faq .code-rules .mono{
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan-soft);
  padding-top: 4px;
}
.page-faq .code-rules p{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--text-dark);
}
.page-faq .code-rules strong{
  color: var(--paper);
  font-weight: 500;
}

/* ---------- 五步比对 ---------- */
.page-faq .steps{
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
}
.page-faq .step{
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-top: 1px solid rgba(16,25,34,.14);
}
.page-faq .step:first-child{ border-top: 0; padding-top: 4px; }
.page-faq .step__num{
  font-family: var(--font-data);
  font-size: 20px;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--ink-800);
}
.page-faq .step__num::after{
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  margin-top: 11px;
  background: var(--ink-700);
}
.page-faq .step__body h3{
  margin: 0;
  font-size: 16.5px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--text-on-paper);
}
.page-faq .step__body p{
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.95;
  color: rgba(16,25,34,.76);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa{
  margin-top: clamp(22px, 4vw, 36px);
  border-top: 1px solid var(--line-soft);
}
.page-faq .qa__item{
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .qa__q{
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 38px 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--paper);
  transition: color .3s var(--ease);
}
.page-faq .qa__q::-webkit-details-marker{ display: none; }
.page-faq .qa__idx{
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}
.page-faq .qa__q::after{
  content: "+";
  position: absolute;
  right: 4px;
  top: 13px;
  font-size: 22px;
  line-height: 1;
  font-weight: 300;
  color: var(--cyan-soft);
  transition: transform .3s var(--ease), color .3s var(--ease);
}
.page-faq .qa__item[open] .qa__q::after{
  transform: rotate(45deg);
  color: var(--coral);
}
.page-faq .qa__q:hover{ color: var(--cyan-soft); }
.page-faq .qa__a{
  padding: 0 30px 20px 0;
}
.page-faq .qa__a p{
  margin: 0;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--text-dark);
}
.page-faq .qa__a a{
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.page-faq .qa__a a:hover{ color: var(--paper); }

/* ---------- 进阶阶梯 ---------- */
.page-faq .ladder{
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-faq .ladder__item{
  padding: 20px 18px;
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--line-strong);
  border-radius: 3px;
  background: rgba(5,25,43,.42);
}
.page-faq .ladder__item--now{
  border-top-color: var(--coral);
  background: rgba(11,42,66,.72);
}
.page-faq .ladder__badge{
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 8px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--coral);
  border: 1px solid rgba(255,122,89,.55);
  border-radius: 2px;
}
.page-faq .ladder__stage{
  display: block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--muted);
}
.page-faq .ladder h3{
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--paper);
}
.page-faq .ladder p{
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-dark);
}

.page-faq .faq-cta{
  margin-top: clamp(28px, 5vw, 46px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}
.page-faq .faq-cta__note{
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px){
  .page-faq .entry-grid{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 900px){
  .page-faq .faq-hero__grid{
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: end;
  }
  .page-faq .faq-mini{ padding: 24px 22px; }
  .page-faq .code-segs{
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }
  .page-faq .code-seg{
    border-radius: 0;
    border-right: 0;
  }
  .page-faq .code-seg:last-child{ border-right: 1px solid var(--line-soft); }
  .page-faq .step{
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 22px;
    padding: 24px 0;
  }
  .page-faq .step__num{ font-size: 24px; }
  .page-faq .qa__q{ font-size: 16.5px; padding-right: 48px; }
  .page-faq .ladder{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    align-items: end;
  }
  .page-faq .ladder__item{
    border-radius: 0;
    border-right: 0;
    transition: transform .4s var(--ease);
  }
  .page-faq .ladder__item:last-child{ border-right: 1px solid var(--line-soft); }
  .page-faq .ladder__item:nth-child(2){ transform: translateY(-14px); }
  .page-faq .ladder__item:nth-child(3){ transform: translateY(-28px); }
}

@media (min-width: 1200px){
  .page-faq .faq-hero{ padding-bottom: clamp(56px, 7vw, 96px); }
  .page-faq .faq-lead{ font-size: 16.5px; }
}

@media (prefers-reduced-motion: reduce){
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after{
    transition: none !important;
    animation: none !important;
    transform: none !important;
  }
}
<<<END>>>