@import url('https://fonts.googleapis.com/css2?family=Amatic+SC:wght@400;700&family=Cabin:wght@400;500;600;700&display=swap');

:root{
  --ink:#000000;
  --neon:#00ff80;
  --blue:#0000ff;
  --soft:#0a0a0a;
  --line:#1f1f1f;
  --txt:#e9e9e9;
  --bar:46px;
  --rail:250px;
  --hand:'Amatic SC','Cabin',system-ui,'Noto Sans SC',sans-serif;
  --body:'Cabin',system-ui,-apple-system,'Segoe UI','Noto Sans SC',sans-serif;
}

*{box-sizing:border-box;}

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  padding:var(--bar) 0 0 var(--rail);
  background:var(--ink);
  color:var(--txt);
  font-family:var(--body);
  font-size:17px;
  line-height:1.72;
  font-weight:400;
  overflow-x:hidden;
}

h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;}
img{max-width:100%;}

/* ---------- 顶部细条 ---------- */
.bar{
  position:fixed;
  top:0;left:0;right:0;
  height:var(--bar);
  z-index:70;
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 16px;
  background:var(--blue);
  border-bottom:3px solid var(--neon);
  overflow:hidden;
}
.bar-dot{
  width:12px;height:12px;
  background:var(--neon);
  flex:0 0 auto;
}
.bar-txt{
  font-family:var(--hand);
  font-weight:700;
  font-size:23px;
  letter-spacing:.09em;
  color:#fff;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

/* ---------- 左侧固定导轨 ---------- */
.rail{
  position:fixed;
  left:0;top:var(--bar);bottom:0;
  width:var(--rail);
  z-index:60;
  display:flex;
  flex-direction:column;
  gap:24px;
  padding:22px 16px 26px;
  background:#000;
  border-right:3px solid var(--neon);
  overflow-y:auto;
}
.brand{
  font-family:var(--hand);
  font-weight:700;
  font-size:38px;
  line-height:.92;
  letter-spacing:.02em;
  color:var(--neon);
  text-decoration:none;
  display:block;
  padding:4px 4px 12px;
  border-bottom:3px solid var(--blue);
}
.brand:hover{color:#fff;background:var(--blue);}

.rail-list{
  counter-reset:rl;
  display:flex;
  flex-direction:column;
}
.rail-list li a{
  display:flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:9px 6px;
  font-size:16px;
  color:#d8d8d8;
  text-decoration:none;
  border-top:2px solid var(--line);
}
.rail-list li a::before{
  counter-increment:rl;
  content:counter(rl,decimal-leading-zero);
  font-family:var(--hand);
  font-size:19px;
  font-weight:700;
  color:var(--neon);
  flex:0 0 auto;
}
.rail-list li a:hover{
  background:var(--neon);
  color:#000;
}
.rail-list li a:hover::before{color:var(--blue);}

/* 入场抖动（列表错位感） */
@keyframes slap{
  from{opacity:0;transform:translateX(-10px);}
  to{opacity:1;transform:translateX(0);}
}
.rail-list li{animation:slap .24s steps(2,end) both;}
.rail-list li:nth-child(1){animation-delay:.02s;}
.rail-list li:nth-child(2){animation-delay:.05s;}
.rail-list li:nth-child(3){animation-delay:.08s;}
.rail-list li:nth-child(4){animation-delay:.11s;}
.rail-list li:nth-child(5){animation-delay:.14s;}
.rail-list li:nth-child(6){animation-delay:.17s;}
.rail-list li:nth-child(7){animation-delay:.2s;}

/* ---------- 主栅格 ---------- */
.wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) 290px;
  align-items:start;
  max-width:1440px;
  margin:0 auto;
  background-image:linear-gradient(to right,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:96px 100%;
}

.hero{
  grid-column:1 / -1;
  display:flex;
  align-items:stretch;
  min-height:calc(100vh - var(--bar));
  border-bottom:4px solid var(--neon);
}
.hero-media{
  flex:1 1 46%;
  min-width:0;
  background:var(--blue);
  overflow:hidden;
  display:flex;
}
.hero-media:empty{display:none;}
.hero-img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  filter:grayscale(1) contrast(1.2);
}
.hero-copy{
  flex:1 1 54%;
  min-width:0;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:56px 26px;
}
h1{
  font-family:var(--hand);
  font-weight:700;
  font-size:clamp(42px,6.4vw,92px);
  line-height:.94;
  letter-spacing:.02em;
  color:var(--neon);
  word-break:break-word;
}

/* ---------- 正文区 ---------- */
.body-col{
  min-width:0;
  padding:34px 26px 40px;
  border-right:3px solid var(--line);
}
.prose{max-width:840px;}

.prose > article,
.prose > section{
  background:var(--soft);
  border-radius:10px;
  padding:26px 22px;
  margin:0 0 26px;
}
.prose > *:last-child{margin-bottom:0;}

.prose article[id],
.prose [id]{
  scroll-margin-top:calc(var(--bar) + 18px);
}

.prose h2{
  font-family:var(--hand);
  font-weight:700;
  font-size:clamp(30px,4vw,46px);
  line-height:1.02;
  letter-spacing:.02em;
  color:#fff;
  margin:0 0 16px;
}
.prose h2 > span{
  display:inline;
  background:var(--blue);
  color:#fff;
  padding:0 .16em;
}
.prose h3{
  font-family:var(--body);
  font-weight:700;
  font-size:20px;
  line-height:1.4;
  color:var(--neon);
  margin:24px 0 10px;
  padding-left:12px;
  border-left:6px solid var(--blue);
}
.prose h3 > span{padding-right:.1em;}
.prose h4{
  font-size:17px;
  font-weight:700;
  margin:18px 0 8px;
  color:#fff;
}
.prose p{margin:0 0 14px;}
.prose p:last-child{margin-bottom:0;}
.prose strong{color:var(--neon);font-weight:700;}
.prose em{font-style:normal;background:var(--blue);color:#fff;padding:0 .2em;}
.prose a{
  color:var(--neon);
  text-decoration:underline;
  text-decoration-thickness:2px;
  text-underline-offset:3px;
}
.prose a:hover{background:var(--neon);color:#000;text-decoration:none;}
.prose ul,.prose ol{
  margin:0 0 16px;
  padding-left:22px;
}
.prose ul li{list-style:square;margin:0 0 8px;}
.prose ol li{list-style:decimal;margin:0 0 8px;}
.prose ul li::marker,.prose ol li::marker{color:var(--neon);font-weight:700;}
.prose blockquote{
  margin:0 0 16px;
  padding:16px 18px;
  background:var(--blue);
  color:#fff;
  border-radius:10px;
  font-weight:500;
}
.prose img{
  display:block;
  width:100%;
  height:auto;
  border-radius:10px;
  margin:0 0 16px;
}
.prose figure{margin:0 0 16px;}
.prose figcaption{
  font-size:16px;
  color:#9a9a9a;
  padding-top:8px;
}
.prose hr{
  border:0;
  border-top:3px solid var(--line);
  margin:22px 0;
}
.prose table{
  width:100%;
  border-collapse:collapse;
  font-size:16px;
  margin:0 0 16px;
  display:block;
  overflow-x:auto;
}
.prose th,.prose td{
  border:2px solid var(--line);
  padding:10px 12px;
  text-align:left;
  vertical-align:top;
}
.prose th{background:#141414;color:#fff;font-weight:700;}

/* ---------- 右侧栏 ---------- */
.side{
  position:sticky;
  top:calc(var(--bar) + 18px);
  padding:34px 20px 40px;
  background:#000;
}
.side h2{
  font-family:var(--hand);
  font-weight:700;
  font-size:32px;
  line-height:1;
  letter-spacing:.06em;
  color:var(--neon);
  margin:0 0 14px;
}
.side h2 > span{
  border-bottom:5px solid var(--blue);
  padding-bottom:3px;
}
.side-list{counter-reset:sl;}
.side-list li{
  counter-increment:sl;
  border-bottom:2px solid var(--line);
}
.side-list li a{
  display:flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:9px 4px;
  font-size:16px;
  color:#cfcfcf;
  text-decoration:none;
}
.side-list li a::before{
  content:counter(sl);
  font-family:var(--hand);
  font-size:19px;
  font-weight:700;
  color:var(--blue);
  flex:0 0 auto;
}
.side-list li a:hover{background:var(--neon);color:#000;}
.side-list li a:hover::before{color:#000;}

/* ---------- 页脚 ---------- */
footer{
  border-top:4px solid var(--neon);
  background:#000;
}
.cta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  margin:22px 26px;
  padding:34px 26px;
  background:var(--blue);
  border-radius:10px;
  text-decoration:none;
}
.cta h2{
  font-family:var(--hand);
  font-weight:700;
  font-size:clamp(32px,5.6vw,66px);
  line-height:.92;
  letter-spacing:.02em;
  color:#fff;
  word-break:break-word;
}
.cta h2 > span{color:var(--neon);}
.cta-go{
  font-weight:700;
  font-size:17px;
  letter-spacing:.06em;
  color:#fff;
  border-bottom:4px solid var(--neon);
  padding-bottom:3px;
  white-space:nowrap;
}
.cta:hover{background:var(--neon);}
.cta:hover h2 > span{color:var(--blue);}
.cta:hover .cta-go{color:#000;border-bottom-color:#000;}

.foot-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px 20px;
  flex-wrap:wrap;
  padding:8px 26px 28px;
}
.foot-brand{
  font-family:var(--hand);
  font-weight:700;
  font-size:26px;
  letter-spacing:.04em;
  color:var(--neon);
  text-decoration:none;
  min-height:44px;
  display:flex;
  align-items:center;
}
.foot-brand:hover{color:#fff;}
.foot-list{
  display:flex;
  flex-wrap:wrap;
  gap:2px 4px;
}
.foot-list li a{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:6px 10px;
  font-size:16px;
  color:#bdbdbd;
  text-decoration:none;
  border-bottom:2px solid transparent;
}
.foot-list li a:hover{color:#000;background:var(--neon);}
.copy{
  font-size:16px;
  color:#8d8d8d;
  min-height:44px;
  display:flex;
  align-items:center;
}

/* ---------- 断点 ---------- */
@media (max-width:1200px){
  .wrap{grid-template-columns:minmax(0,1fr) 244px;}
  .body-col{padding:28px 20px 34px;}
}

@media (max-width:980px){
  body{padding-left:0;}
  .rail{
    position:static;
    width:auto;
    border-right:0;
    border-bottom:3px solid var(--neon);
    padding:16px;
    gap:14px;
    overflow:visible;
  }
  .brand{font-size:32px;padding-bottom:10px;}
  .rail-list{
    flex-direction:row;
    gap:8px;
    overflow-x:auto;
    padding-bottom:6px;
  }
  .rail-list li{flex:0 0 auto;animation:none;}
  .rail-list li a{
    border:2px solid var(--line);
    padding:8px 12px;
    white-space:nowrap;
  }
  .wrap{grid-template-columns:minmax(0,1fr);}
  .hero{min-height:calc(100vh - var(--bar) - 130px);}
  .body-col{border-right:0;padding:24px 16px 30px;}
  .side{
    position:static;
    border-top:3px solid var(--line);
    padding:24px 16px 30px;
  }
  .side-list{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
  }
  .side-list li{border-bottom:0;}
  .side-list li a{
    border:2px solid var(--line);
    padding:8px 12px;
    white-space:nowrap;
  }
  .cta{margin:18px 16px;padding:26px 18px;}
  .foot-row{padding:8px 16px 24px;}
}

@media (max-width:760px){
  .hero{
    flex-direction:column;
    min-height:0;
  }
  .hero-copy{
    order:-1;
    padding:38px 18px 34px;
  }
  .hero-media{
    flex:0 0 auto;
    max-height:42vh;
  }
  .hero-img{max-height:42vh;}
  .prose > article,
  .prose > section{padding:22px 16px;}
  .foot-row{
    flex-direction:column;
    align-items:flex-start;
  }
  .foot-list{width:100%;}
}

@media (max-width:420px){
  body{font-size:16px;}
  .bar-txt{font-size:20px;}
  .cta{flex-direction:column;align-items:flex-start;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,
  *::before,
  *::after{
    animation:none !important;
    transition:none !important;
  }
}
</｜DSML｜ parameter>
</invoke>
</｜DSML｜_output>

button[aria-expanded]{min-width:44px;min-height:44px}