.page-faq{
  --faq-rail:210px;
  --faq-cut:20px;
  --faq-cut-sm:12px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position:relative;
  overflow:hidden;
  padding-block:28px 56px;
}
.page-faq .faq-hero::before{
  content:"";
  position:absolute;
  top:-140px;
  right:-18%;
  width:min(820px,92vw);
  height:560px;
  background:linear-gradient(140deg,rgba(124,58,237,.50),rgba(34,211,238,.20) 58%,rgba(7,6,15,0) 88%);
  transform:rotate(-6deg);
  pointer-events:none;
}
.page-faq .faq-hero::after{
  content:"";
  position:absolute;
  left:-10%;
  bottom:24px;
  width:60%;
  height:1px;
  background:linear-gradient(90deg,rgba(34,211,238,0),rgba(34,211,238,.55),rgba(255,138,61,0));
  pointer-events:none;
}
.page-faq .faq-hero__grid{
  position:relative;
  display:grid;
  gap:34px;
}
.page-faq .faq-hero__copy .display{
  margin:10px 0 0;
  font-size:clamp(2.1rem,6vw,3.5rem);
  line-height:1.14;
}
.page-faq .faq-hero__copy .lede{
  margin-top:18px;
  max-width:34em;
}
.page-faq .faq-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.page-faq .faq-hero__facts{
  list-style:none;
  margin:34px 0 0;
  padding:0;
  display:grid;
  gap:16px;
  grid-template-columns:repeat(auto-fit,minmax(132px,1fr));
}
.page-faq .faq-fact{
  border-top:1px solid var(--line);
  padding-top:12px;
}
.page-faq .faq-fact__num{
  display:block;
  font-size:1.6rem;
  line-height:1;
  color:var(--cyan);
}
.page-faq .faq-fact__label{
  display:block;
  margin-top:8px;
  font-size:.85rem;
  color:var(--mauve);
  line-height:1.5;
}

.page-faq .faq-triage{
  padding:26px 22px;
  background:
    linear-gradient(155deg,rgba(25,22,48,.96),rgba(7,6,15,.98));
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - var(--faq-cut)) 0,100% var(--faq-cut),100% 100%,var(--faq-cut) 100%,0 calc(100% - var(--faq-cut)));
}
.page-faq .faq-triage__title{
  margin:0 0 14px;
  font-family:var(--font-serif);
  font-weight:600;
  font-size:1.05rem;
  color:var(--star);
}
.page-faq .faq-triage__list{
  list-style:none;
  margin:0;
  padding:0;
}
.page-faq .faq-triage__list a{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:12px;
  align-items:start;
  padding:13px 0;
  border-bottom:1px dashed var(--line);
  color:var(--star);
  text-decoration:none;
  font-size:.94rem;
  line-height:1.6;
  transition:color .2s var(--ease);
}
.page-faq .faq-triage__list a:hover,
.page-faq .faq-triage__list a:focus-visible{
  color:var(--cyan);
}
.page-faq .faq-triage__sym{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:24px;
  height:24px;
  font-size:.78rem;
  color:var(--orange);
  border:1px solid rgba(255,138,61,.5);
  border-radius:4px;
}
.page-faq .faq-triage__note{
  margin:16px 0 0;
  font-size:.82rem;
  color:var(--mauve);
  line-height:1.65;
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body{
  display:grid;
  gap:30px;
  padding-block:8px 72px;
}

.page-faq .faq-rail__title{
  font-family:var(--font-serif);
  font-weight:600;
  font-size:.95rem;
  letter-spacing:.04em;
  color:var(--mauve);
  margin:0 0 12px;
}
.page-faq .faq-rail__list{
  list-style:none;
  margin:0;
  padding:0 0 6px;
  display:flex;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:thin;
}
.page-faq .faq-rail__link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
  padding:8px 13px;
  font-size:.84rem;
  color:var(--star);
  text-decoration:none;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(18,16,31,.7);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.page-faq .faq-rail__link .mono{
  color:var(--cyan);
  font-size:.74rem;
}
.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible{
  border-color:rgba(34,211,238,.6);
  color:var(--cyan);
}

/* ---------- 章节 ---------- */
.page-faq .faq-chapter{
  margin-bottom:60px;
  scroll-margin-top:110px;
}
.page-faq .faq-chapter:last-child{
  margin-bottom:0;
}
.page-faq .faq-chapter__head{
  margin-bottom:22px;
  max-width:40em;
}
.page-faq .faq-chapter__head .h2{
  margin:10px 0 0;
  font-size:clamp(1.4rem,3.2vw,1.95rem);
  line-height:1.28;
}
.page-faq .faq-chapter__head .lede{
  margin-top:12px;
  font-size:1rem;
}

.page-faq .faq-figure{
  margin:0 0 26px;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  background:rgba(18,16,31,.6);
}
.page-faq .faq-figure img{
  display:block;
  width:100%;
  max-width:100%;
  height:auto;
  object-fit:cover;
}
.page-faq .faq-figure--side{
  margin:0;
}

/* ---------- 步骤卡 ---------- */
.page-faq .faq-steps{
  display:grid;
  gap:14px;
}
.page-faq .faq-step{
  padding:0;
  overflow:hidden;
  scroll-margin-top:110px;
}
.page-faq .faq-step__sum{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:14px;
  padding:20px 20px;
  cursor:pointer;
  list-style:none;
}
.page-faq .faq-step__sum::-webkit-details-marker{
  display:none;
}
.page-faq .faq-step__num{
  font-size:1.5rem;
  line-height:1;
  color:var(--violet-soft);
}
.page-faq .faq-step__title{
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.02rem;
  color:var(--star);
}
.page-faq .faq-step__sum .tag{
  justify-self:end;
}
.page-faq .faq-step__body{
  padding:0 20px 22px;
  margin-top:2px;
  border-top:1px dashed var(--line);
  padding-top:18px;
  font-size:.96rem;
  line-height:1.75;
  color:rgba(244,242,255,.88);
  animation:faq-fade .26s var(--ease) both;
}
.page-faq .faq-step__body p{
  margin:0 0 12px;
}
.page-faq .faq-step__body strong{
  color:var(--cyan);
  font-weight:600;
}
@keyframes faq-fade{
  from{opacity:0;transform:translateY(-6px);}
  to{opacity:1;transform:none;}
}
.page-faq .faq-list{
  list-style:none;
  margin:0 0 14px;
  padding:0;
  display:grid;
  gap:8px;
}
.page-faq .faq-list li{
  position:relative;
  padding-left:16px;
  font-size:.94rem;
  line-height:1.7;
}
.page-faq .faq-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.62em;
  width:6px;
  height:6px;
  border-radius:1px;
  background:var(--cyan);
}
.page-faq .faq-list .mono{
  color:var(--star);
  font-size:.88rem;
}

/* ---------- 登录异常清单 ---------- */
.page-faq .faq-causes{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:12px;
}
.page-faq .faq-cause{
  display:block;
  position:relative;
  padding:18px 18px 20px;
  border:1px solid var(--line);
  border-radius:var(--faq-cut-sm);
  background:rgba(18,16,31,.72);
  cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.page-faq .faq-cause:hover{
  border-color:var(--line-strong);
}
.page-faq .faq-cause__check{
  position:absolute;
  width:1px;
  height:1px;
  opacity:0;
  pointer-events:none;
}
.page-faq .faq-cause__mark{
  position:absolute;
  top:18px;
  right:18px;
  width:20px;
  height:20px;
  border:1px solid var(--line-strong);
  border-radius:4px;
  background:rgba(7,6,15,.8);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.page-faq .faq-cause__check:checked ~ .faq-cause__mark{
  background:var(--mint);
  border-color:var(--mint);
}
.page-faq .faq-cause__check:checked ~ .faq-cause__mark::after{
  content:"";
  position:absolute;
  left:6px;
  top:2px;
  width:5px;
  height:10px;
  border-right:2px solid #07060F;
  border-bottom:2px solid #07060F;
  transform:rotate(40deg);
}
.page-faq .faq-cause__check:focus-visible ~ .faq-cause__mark{
  outline:2px solid var(--cyan);
  outline-offset:2px;
}
.page-faq .faq-cause__body{
  display:block;
  padding-right:32px;
}
.page-faq .faq-cause__body::after{
  content:"已排除";
  position:absolute;
  top:18px;
  right:48px;
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.06em;
  color:var(--mint);
  opacity:0;
  transition:opacity .2s var(--ease);
}
.page-faq .faq-cause__check:checked ~ .faq-cause__body::after{
  opacity:1;
}
.page-faq .faq-cause__title{
  display:block;
  font-family:var(--font-display);
  font-weight:700;
  font-size:1rem;
  color:var(--star);
}
.page-faq .faq-cause__row{
  display:grid;
  gap:2px 12px;
  margin-top:9px;
}
.page-faq .faq-cause__k{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
  color:var(--mauve);
}
.page-faq .faq-cause__v{
  font-size:.92rem;
  line-height:1.7;
  color:rgba(244,242,255,.84);
}

/* ---------- 配置对照表 ---------- */
.page-faq .faq-spec{
  display:grid;
  gap:22px;
}
.page-faq .faq-table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--faq-cut-sm);
  background:rgba(18,16,31,.6);
}
.page-faq .faq-table{
  width:100%;
  border-collapse:collapse;
  min-width:420px;
}
.page-faq .faq-table__caption{
  caption-side:top;
  text-align:left;
  padding:14px 16px 0;
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.1em;
  color:var(--mauve);
}
.page-faq .faq-table th,
.page-faq .faq-table td{
  text-align:left;
  padding:14px 16px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
.page-faq .faq-table thead th{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.1em;
  color:var(--mauve);
  font-weight:500;
  border-bottom:1px solid var(--line-strong);
}
.page-faq .faq-table tbody th{
  font-weight:600;
  color:var(--star);
  font-size:.94rem;
  white-space:nowrap;
}
.page-faq .faq-table td{
  font-family:var(--font-mono);
  font-size:.88rem;
  color:rgba(244,242,255,.86);
}
.page-faq .faq-table td .tag{
  font-family:var(--font-body);
}
.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td{
  border-bottom:0;
}
.page-faq .faq-footnote{
  margin:16px 0 0;
  font-size:.9rem;
  line-height:1.7;
  color:var(--mauve);
  max-width:44em;
}
.page-faq .faq-footnote a{
  color:var(--cyan);
  text-underline-offset:3px;
}

/* ---------- 包体与版本 ---------- */
.page-faq .faq-cards{
  display:grid;
  gap:14px;
  grid-template-columns:1fr;
}
.page-faq .faq-card{
  padding:20px 20px 18px;
  border:1px solid var(--line);
  border-left:2px solid rgba(124,58,237,.75);
  border-radius:var(--faq-cut-sm);
  background:linear-gradient(160deg,rgba(25,22,48,.85),rgba(7,6,15,.85));
}
.page-faq .faq-card__kicker{
  margin:0 0 8px;
  font-size:.72rem;
  letter-spacing:.1em;
  color:var(--orange);
}
.page-faq .faq-card .h3{
  margin:0 0 10px;
  font-size:1.02rem;
}
.page-faq .faq-card p{
  margin:0 0 10px;
  font-size:.92rem;
  line-height:1.72;
  color:rgba(244,242,255,.84);
}
.page-faq .faq-card__link{
  margin:0;
}
.page-faq .faq-card__link a{
  font-size:.9rem;
  color:var(--cyan);
  text-decoration:none;
  border-bottom:1px solid rgba(34,211,238,.45);
}
.page-faq .faq-card__link a:hover{
  color:var(--star);
}

/* ---------- 反馈 ---------- */
.page-faq .faq-feedback{
  display:grid;
  gap:20px;
}
.page-faq .faq-needs{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:12px;
}
.page-faq .faq-needs li{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:12px;
  align-items:start;
  padding:14px 16px;
  border:1px solid var(--line);
  border-radius:var(--faq-cut-sm);
  background:rgba(18,16,31,.66);
}
.page-faq .faq-needs__num{
  font-size:.95rem;
  color:var(--violet-soft);
  padding-top:2px;
}
.page-faq .faq-needs__text{
  font-size:.93rem;
  line-height:1.7;
  color:rgba(244,242,255,.86);
}
.page-faq .faq-needs__text strong{
  color:var(--star);
  font-weight:600;
}
.page-faq .faq-mail{
  padding:24px 22px;
  border:1px solid rgba(255,138,61,.35);
  background:linear-gradient(150deg,rgba(255,138,61,.10),rgba(124,58,237,.14) 60%,rgba(7,6,15,.9));
  clip-path:polygon(0 0,calc(100% - var(--faq-cut)) 0,100% var(--faq-cut),100% 100%,var(--faq-cut) 100%,0 calc(100% - var(--faq-cut)));
}
.page-faq .faq-mail__label{
  margin:0 0 8px;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.1em;
  color:var(--orange);
}
.page-faq .faq-mail__addr{
  margin:0 0 14px;
  font-size:1.02rem;
  color:var(--star);
  word-break:break-all;
}
.page-faq .faq-mail__meta{
  margin:0 0 10px;
  font-size:.88rem;
  line-height:1.72;
  color:rgba(244,242,255,.8);
}
.page-faq .faq-mail__meta:last-child{
  margin-bottom:0;
}
.page-faq .faq-mail__meta a{
  color:var(--cyan);
  text-underline-offset:3px;
}

/* ---------- 其他疑问 ---------- */
.page-faq .faq-qa{
  display:grid;
  gap:10px;
}
.page-faq .faq-qa__item{
  border:1px solid var(--line);
  border-radius:var(--faq-cut-sm);
  background:rgba(18,16,31,.62);
  overflow:hidden;
}
.page-faq .faq-qa__sum{
  position:relative;
  padding:16px 46px 16px 18px;
  cursor:pointer;
  list-style:none;
  font-family:var(--font-display);
  font-weight:600;
  font-size:.96rem;
  color:var(--star);
  line-height:1.55;
}
.page-faq .faq-qa__sum::-webkit-details-marker{
  display:none;
}
.page-faq .faq-qa__sum::after{
  content:"+";
  position:absolute;
  right:18px;
  top:50%;
  transform:translateY(-50%);
  font-family:var(--font-mono);
  font-size:1.1rem;
  color:var(--cyan);
}
.page-faq .faq-qa__item[open] .faq-qa__sum::after{
  content:"–";
}
.page-faq .faq-qa__body{
  padding:0 18px 18px;
  font-size:.92rem;
  line-height:1.75;
  color:rgba(244,242,255,.84);
  border-top:1px dashed var(--line);
  padding-top:14px;
}
.page-faq .faq-qa__body p{
  margin:0;
}
.page-faq .faq-qa__body a{
  color:var(--cyan);
  text-underline-offset:3px;
}

/* ---------- 响应式 ---------- */
@media (min-width:560px){
  .page-faq .faq-cards{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (min-width:760px){
  .page-faq .faq-causes{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .page-faq .faq-cause--wide{
    grid-column:1 / -1;
  }
  .page-faq .faq-cause__row{
    grid-template-columns:44px minmax(0,1fr);
    align-items:baseline;
  }
  .page-faq .faq-cause__k{
    padding-top:2px;
  }
}

@media (min-width:920px){
  .page-faq .faq-hero{
    padding-block:40px 72px;
  }
  .page-faq .faq-hero__grid{
    grid-template-columns:1.12fr .88fr;
    gap:52px;
    align-items:start;
  }
  .page-faq .faq-hero__aside{
    padding-top:12px;
  }
  .page-faq .faq-body{
    grid-template-columns:var(--faq-rail) minmax(0,1fr);
    gap:52px;
    padding-block:0 88px;
  }
  .page-faq .faq-rail{
    position:sticky;
    top:104px;
    align-self:start;
  }
  .page-faq .faq-rail__list{
    display:grid;
    gap:2px;
    overflow:visible;
  }
  .page-faq .faq-rail__link{
    display:grid;
    grid-template-columns:auto 1fr;
    gap:10px;
    white-space:normal;
    padding:9px 12px;
    border-radius:8px;
    border-color:transparent;
    background:transparent;
    border-left:2px solid var(--line);
    font-size:.86rem;
    line-height:1.5;
  }
  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible{
    border-left-color:var(--cyan);
    background:rgba(34,211,238,.06);
  }
  .page-faq .faq-spec{
    grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);
    gap:26px;
    align-items:start;
  }
  .page-faq .faq-cards{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
  .page-faq .faq-feedback{
    grid-template-columns:minmax(0,1fr) minmax(0,.82fr);
    gap:26px;
    align-items:start;
  }
  .page-faq .faq-step__sum{
    padding:22px 24px;
  }
  .page-faq .faq-step__body{
    padding:18px 24px 24px;
  }
}

@media (max-width:759px){
  .page-faq .faq-table thead{
    display:none;
  }
  .page-faq .faq-table,
  .page-faq .faq-table tbody,
  .page-faq .faq-table tr,
  .page-faq .faq-table th,
  .page-faq .faq-table td{
    display:block;
    width:100%;
    min-width:0;
  }
  .page-faq .faq-table tr{
    padding:14px 16px;
    border-bottom:1px solid var(--line);
  }
  .page-faq .faq-table tbody tr:last-child{
    border-bottom:0;
  }
  .page-faq .faq-table th,
  .page-faq .faq-table td{
    padding:0;
    border-bottom:0;
  }
  .page-faq .faq-table tbody th{
    margin-bottom:8px;
    color:var(--cyan);
  }
  .page-faq .faq-table td{
    display:grid;
    grid-template-columns:76px minmax(0,1fr);
    gap:10px;
    padding:3px 0;
  }
  .page-faq .faq-table td::before{
    content:attr(data-label);
    font-family:var(--font-mono);
    font-size:.7rem;
    letter-spacing:.06em;
    color:var(--mauve);
    padding-top:2px;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-faq .faq-step__body{
    animation:none;
  }
  .page-faq .faq-cause,
  .page-faq .faq-rail__link,
  .page-faq .faq-cause__mark{
    transition:none;
  }
}
<<<END>>>