.page-faq{
  --faq-pad: clamp(48px, 7vw, 96px);
  --faq-gap: clamp(18px, 2.6vw, 36px);
  display: block;
  overflow-x: clip;
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
}

.page-faq .container{
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-faq .breadcrumbs{
  margin-bottom: clamp(22px, 4vw, 40px);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
}
.page-faq .breadcrumbs__list{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .breadcrumbs__link{ color: var(--paper-70); text-decoration: none; }
.page-faq .breadcrumbs__link:hover{ color: var(--lime); }
.page-faq .breadcrumbs__sep{ color: var(--mist); }
.page-faq .breadcrumbs__current{ color: var(--lime); }

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position: relative;
  padding-top: calc(var(--hdr-h) + clamp(26px, 5vw, 64px));
  padding-bottom: clamp(44px, 7vw, 88px);
  background:
    linear-gradient(112deg, rgba(22, 69, 58, 0.96) 0%, rgba(11, 43, 36, 1) 62%);
  overflow: hidden;
}
.page-faq .faq-hero::before{
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.55;
  pointer-events: none;
}
.page-faq .faq-hero::after{
  content: "";
  position: absolute;
  right: -10%;
  top: -22%;
  width: 44%;
  height: 152%;
  transform: rotate(8deg);
  background: linear-gradient(180deg, rgba(198, 255, 61, 0.16), rgba(31, 58, 95, 0.42));
  pointer-events: none;
}
.page-faq .faq-hero__inner{
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  align-items: start;
}
.page-faq .eyebrow{
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lime);
}
.page-faq .faq-hero h1{
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.15rem, 6vw, 4.3rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 16ch;
}
.page-faq .lead{
  margin: 0;
  max-width: 46ch;
  font-size: clamp(1rem, 1.7vw, 1.12rem);
  line-height: 1.8;
  color: var(--paper-85);
}
.page-faq .faq-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-faq .faq-hero__lanes{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-hero__lanes li{
  padding: 5px 12px;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.page-faq .faq-hero__lanes li:first-child{
  border-color: var(--line-lime);
  color: var(--lime);
}
.page-faq .faq-hero__media{
  margin: 0;
  border: 2px solid var(--line-lime);
  box-shadow: var(--shadow-hard);
  background: var(--ink-800);
}
.page-faq .faq-hero__media img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .media-frame__caption{
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index{
  padding-block: var(--faq-pad);
  background: var(--ink-800);
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}
.page-faq .section-head{ margin-bottom: clamp(26px, 4vw, 44px); }
.page-faq .section-title{
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.2vw, 2.6rem);
  line-height: 1.16;
  color: var(--paper);
}
.page-faq .section-sub{
  margin: 0;
  max-width: 62ch;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--paper-70);
}
.page-faq .faq-index__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .idx-card{
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 18px;
  background: var(--ink-900);
  border: 2px solid var(--line);
  border-top: 4px solid var(--lime);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-faq .idx-card:nth-child(2){ border-top-color: var(--yellow); }
.page-faq .idx-card:nth-child(3){ border-top-color: var(--red); }
.page-faq .idx-card:nth-child(4){ border-top-color: var(--indigo); }
.page-faq .idx-card:nth-child(5){ border-top-color: var(--mist); }
.page-faq .idx-card:hover,
.page-faq .idx-card:focus-within{
  transform: translateY(-4px);
  border-color: var(--line-lime);
}
.page-faq .idx-card__no{
  font-size: 1.4rem;
  line-height: 1;
  color: var(--lime);
}
.page-faq .idx-card__title{
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}
.page-faq .idx-card__answer{
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--paper-70);
  flex: 1 1 auto;
}
.page-faq .idx-card__link{
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--line-lime);
  align-self: flex-start;
  padding-bottom: 2px;
}
.page-faq .idx-card__link:hover{ color: var(--paper); border-color: var(--paper); }

/* ---------- 五步 ---------- */
.page-faq .faq-steps{
  padding-block: var(--faq-pad);
  background: var(--ink-900);
}
.page-faq .faq-steps__flow{
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0 0 clamp(28px, 4vw, 46px);
  padding: 0;
  list-style: none;
}
.page-faq .step-card{
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 16px 16px;
  background: linear-gradient(180deg, rgba(18, 59, 49, 0.9), rgba(11, 43, 36, 1));
  border: 2px solid var(--line);
  border-left: 5px solid var(--lime);
}
.page-faq .step-card__no{
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--lime);
}
.page-faq .step-card__title{
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}
.page-faq .step-card__body{
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--paper-70);
  flex: 1 1 auto;
}
.page-faq .step-card__check{
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.6;
  color: var(--yellow);
}
.page-faq .step-card__check span{ margin-right: 6px; }

.page-faq .faq-steps__foot{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  align-items: start;
}
.page-faq .faq-steps__figure{
  margin: 0;
  max-width: 420px;
  border: 2px solid var(--line-lime);
  box-shadow: var(--shadow-lime);
  background: var(--ink-800);
}
.page-faq .faq-steps__figure img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .faq-steps__note h3{
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--lime);
}
.page-faq .faq-steps__note p{
  margin: 0 0 12px;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--paper-85);
  max-width: 54ch;
}

/* ---------- 问答 ---------- */
.page-faq .faq-qa{
  padding-block: var(--faq-pad);
  background: var(--ink-800);
  border-top: 2px solid var(--line);
}
.page-faq .faq-qa__layout{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  align-items: start;
}
.page-faq .qa-cat{
  margin-bottom: clamp(28px, 4vw, 44px);
}
.page-faq .qa-cat:last-child{ margin-bottom: 0; }
.page-faq .qa-cat__title{
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line-strong);
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--paper);
}
.page-faq .qa-cat__badge{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--lime);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 700;
}
.page-faq .qa-item{
  margin-bottom: 10px;
  border: 2px solid var(--line);
  background: var(--ink-900);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}
.page-faq .qa-item:last-child{ margin-bottom: 0; }
.page-faq .qa-item[open]{
  background: var(--lime-soft);
  border-color: var(--lime);
  color: var(--char);
}
.page-faq .qa-item__q{
  position: relative;
  display: block;
  padding: 15px 46px 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
}
.page-faq .qa-item__q::-webkit-details-marker{ display: none; }
.page-faq .qa-item__q::after{
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.3rem;
  line-height: 1;
  color: var(--lime);
}
.page-faq .qa-item[open] .qa-item__q{ color: var(--char); }
.page-faq .qa-item[open] .qa-item__q::after{
  content: "–";
  color: var(--indigo);
}
.page-faq .qa-item__code{
  display: inline-block;
  margin-right: 10px;
  padding: 2px 8px;
  background: rgba(198, 255, 61, 0.12);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--lime);
}
.page-faq .qa-item[open] .qa-item__code{
  background: var(--ink-900);
}
.page-faq .qa-item__a{
  padding: 0 16px 18px;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--char);
}
.page-faq .qa-item__a p{ margin: 0 0 10px; }
.page-faq .qa-item__a p:last-child{ margin-bottom: 0; }
.page-faq .qa-item__a ul{
  margin: 0 0 12px;
  padding-left: 20px;
}
.page-faq .qa-item__a li{ margin-bottom: 6px; }
.page-faq .qa-item__a a{
  color: var(--indigo);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .qa-item__short{
  display: inline-block;
  padding: 5px 12px;
  background: var(--ink-900);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
}

.page-faq .qa-table-wrap{
  margin: 0 0 14px;
  overflow-x: auto;
  border: 2px solid var(--ink-900);
}
.page-faq .qa-table{
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 0.84rem;
  line-height: 1.6;
}
.page-faq .qa-table caption{
  padding: 8px 10px;
  background: var(--ink-900);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-align: left;
}
.page-faq .qa-table th,
.page-faq .qa-table td{
  padding: 9px 10px;
  border: 1px solid rgba(42, 47, 44, 0.28);
  text-align: left;
  vertical-align: top;
  color: var(--char);
}
.page-faq .qa-table thead th{
  background: var(--ink-800);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.page-faq .qa-table tbody th{
  font-weight: 600;
  background: rgba(246, 242, 232, 0.55);
}
.page-faq .qa-table__hl{
  background: rgba(198, 255, 61, 0.55);
  font-weight: 600;
}

/* ---------- 粘性侧栏 ---------- */
.page-faq .faq-side__card{
  padding: 20px 18px;
  background: var(--ink-900);
  border: 2px solid var(--line-lime);
  box-shadow: var(--shadow-hard);
}
.page-faq .faq-side__label{
  margin: 0 0 10px;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--lime);
}
.page-faq .faq-side__title{
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 1.24rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}
.page-faq .faq-side__list{
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}
.page-faq .faq-side__list li{
  display: flex;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--paper-85);
}
.page-faq .faq-side__mark{
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 4px;
  border: 2px solid var(--lime);
  background: transparent;
}
.page-faq .faq-side__note{
  margin: 0 0 16px;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--mist);
}
.page-faq .faq-side__btn{
  display: inline-flex;
  width: 100%;
  justify-content: center;
}
.page-faq .faq-side__links{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
}
.page-faq .faq-side__links a{
  color: var(--paper-70);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}
.page-faq .faq-side__links a:hover{ color: var(--lime); border-color: var(--lime); }

/* ---------- 兼容档案 ---------- */
.page-faq .faq-compat{
  padding-block: var(--faq-pad);
  background:
    linear-gradient(135deg, rgba(31, 58, 95, 1) 0%, rgba(20, 41, 68, 1) 100%);
  border-top: 2px solid var(--line-lime);
  border-bottom: 2px solid var(--line-lime);
}
.page-faq .faq-compat__inner{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  align-items: start;
}
.page-faq .faq-compat__copy h2{
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.2vw, 2.5rem);
  line-height: 1.18;
  color: var(--paper);
  max-width: 20ch;
}
.page-faq .faq-compat__copy p{
  margin: 0 0 14px;
  max-width: 58ch;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--paper-85);
}
.page-faq .faq-compat__stats{
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.page-faq .faq-compat__stat{
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(11, 43, 36, 0.72);
  border: 2px solid var(--line-strong);
}
.page-faq .faq-compat__num{
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  line-height: 1;
  color: var(--lime);
}
.page-faq .faq-compat__unit{
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--paper-70);
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-help{
  padding-block: var(--faq-pad);
  background: var(--ink-900);
}
.page-faq .faq-help__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  align-items: start;
}
.page-faq .faq-help__copy h2{
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  line-height: 1.2;
  color: var(--paper);
  max-width: 22ch;
}
.page-faq .faq-help__copy > p{
  margin: 0 0 18px;
  max-width: 56ch;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--paper-70);
}
.page-faq .faq-help__list{
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}
.page-faq .faq-help__list li{
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--paper-85);
}
.page-faq .faq-help__list li:last-child{ border-bottom: 1px solid var(--line); }
.page-faq .faq-help__num{
  flex: none;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--lime);
  padding-top: 3px;
}
.page-faq .faq-help__tip{
  margin: 0;
  padding: 12px 14px;
  border-left: 4px solid var(--yellow);
  background: rgba(255, 212, 59, 0.08);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--paper-85);
  max-width: 56ch;
}
.page-faq .faq-help__card{
  padding: 24px 20px;
  background: var(--paper);
  border: 2px solid var(--char);
  color: var(--char);
  box-shadow: var(--shadow-hard);
}
.page-faq .faq-help__label{
  margin: 0 0 6px;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--indigo);
}
.page-faq .faq-help__value{
  display: block;
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: clamp(0.94rem, 2.4vw, 1.1rem);
  font-weight: 700;
  color: var(--char);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 2px solid var(--lime);
  padding-bottom: 4px;
}
.page-faq .faq-help__value:hover{ color: var(--indigo); border-color: var(--indigo); }
.page-faq .faq-help__note{
  margin: 0 0 18px;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(42, 47, 44, 0.8);
}
.page-faq .faq-help__btn{ width: 100%; justify-content: center; }
.page-faq .faq-help__meta{
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(42, 47, 44, 0.35);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.7;
  color: rgba(42, 47, 44, 0.72);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px){
  .page-faq .faq-index__grid{ grid-template-columns: repeat(2, 1fr); }
  .page-faq .faq-compat__stats{ grid-template-columns: repeat(3, 1fr); }
  .page-faq .faq-compat__stat{ flex-direction: column; align-items: flex-start; gap: 8px; }
  .page-faq .faq-help__list li{ align-items: flex-start; }
}

@media (min-width: 900px){
  .page-faq .faq-hero__grid{ grid-template-columns: 7fr 5fr; gap: clamp(28px, 4vw, 58px); }
  .page-faq .faq-steps__foot{ grid-template-columns: 420px minmax(0, 1fr); }
  .page-faq .faq-compat__inner{ grid-template-columns: 7fr 5fr; }
  .page-faq .faq-help__grid{ grid-template-columns: 7fr 5fr; }
  .page-faq .faq-help__card{ position: static; }
}

@media (min-width: 1024px){
  .page-faq .faq-index__grid{ grid-template-columns: repeat(5, 1fr); }
  .page-faq .faq-steps__flow{ grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .page-faq .faq-qa__layout{ grid-template-columns: minmax(0, 1fr) 318px; }
  .page-faq .faq-side{ position: sticky; top: calc(var(--hdr-h) + 20px); }
}

@media (prefers-reduced-motion: reduce){
  .page-faq .idx-card,
  .page-faq .qa-item,
  .page-faq [data-reveal]{
    transition: none;
    transform: none;
  }
}
<<<END>>>