@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=Orbitron:wght@700;900&display=swap');

:root{
  --g:#00ff80;
  --b:#0000ff;
  --k:#000000;
  --w:#ffffff;
  --line:#161616;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --disp:'Orbitron','JetBrains Mono',ui-monospace,Menlo,monospace;
}

*{box-sizing:border-box;margin:0;padding:0;}

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

body{
  background:var(--k);
  color:var(--w);
  font-family:var(--mono);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}

img{max-width:100%;display:block;}

a{color:var(--g);text-decoration:none;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--g);outline-offset:2px;}

/* ---------- 顶部细条 ---------- */
.ticker{
  background:var(--g);
  color:var(--k);
  border-bottom:3px solid var(--k);
  padding:5px 14px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.22em;
  overflow:hidden;
  white-space:nowrap;
}
.ticker p{overflow:hidden;text-overflow:ellipsis;}

/* ---------- 页头 ---------- */
.top{
  position:sticky;
  top:0;
  z-index:60;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:8px 12px;
  background:var(--k);
  border-bottom:3px solid var(--g);
}

.brand{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  border:3px solid var(--g);
  background:var(--k);
}
.brand:hover{background:var(--g);}
.mark-img{width:32px;height:32px;object-fit:contain;}
.mark-glyph{
  font-family:var(--disp);
  font-weight:900;
  font-size:20px;
  color:var(--g);
  line-height:1;
}
.brand:hover .mark-glyph{color:var(--k);}

.nav{min-width:0;flex:1 1 auto;}
.nav p{
  display:flex;
  gap:6px;
  justify-content:flex-end;
  overflow-x:auto;
  scrollbar-width:none;
  padding-bottom:2px;
}
.nav p::-webkit-scrollbar{display:none;}

.nav a{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:44px;
  padding:10px 11px;
  white-space:nowrap;
  font-size:14px;
  font-weight:500;
  color:var(--g);
  border:2px solid transparent;
}
.nav a::before{
  content:"";
  width:8px;
  height:8px;
  background:var(--b);
  border:1px solid var(--g);
  flex:0 0 auto;
}
.nav a:hover,
.nav a.on{background:var(--g);color:var(--k);border-color:var(--g);}
.nav a:hover::before,
.nav a.on::before{background:var(--k);border-color:var(--k);}

/* ---------- 主区 ---------- */
.main{display:block;}

/* ---------- 首屏 ---------- */
.hero{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  min-height:100vh;
  min-height:100svh;
  border-bottom:4px solid var(--g);
}

.hero-copy{
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  text-align:center;
  gap:22px;
  padding:56px 26px;
}

.hero-copy h1{
  font-family:var(--disp);
  font-weight:900;
  font-size:clamp(2rem,5.4vw,4rem);
  line-height:1.14;
  letter-spacing:.01em;
  text-wrap:balance;
  border-bottom:8px solid var(--b);
  padding-bottom:12px;
}

.hero-desc{
  max-width:34ch;
  font-size:17px;
  line-height:1.8;
  color:#d8d8d8;
  border-top:2px solid var(--b);
  border-bottom:2px solid var(--b);
  padding:14px 0;
}

.hero-fig{
  border-left:4px solid var(--b);
  background:#050505;
  overflow:hidden;
}
.hero-img{
  width:100%;
  height:100%;
  min-height:100%;
  object-fit:cover;
  filter:contrast(1.12) saturate(1.15) grayscale(.12);
}
.hero-plate{
  height:100%;
  min-height:340px;
  display:grid;
  place-items:center;
  padding:24px;
  background:repeating-linear-gradient(45deg,#00180c 0 14px,#000 14px 28px);
}
.hero-plate span{
  font-family:var(--disp);
  font-weight:900;
  font-size:clamp(1.2rem,3.4vw,2rem);
  color:var(--g);
  border:3px solid var(--g);
  padding:10px 18px;
  text-align:center;
}

/* ---------- 内容骨架 ---------- */
.board{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
}

.side{
  align-self:start;
  position:sticky;
  top:74px;
  background:#060606;
  border-right:4px solid var(--g);
  padding:24px 16px 30px;
}

.side-box + .side-box{
  margin-top:26px;
  padding-top:20px;
  border-top:2px solid var(--line);
}

.side h2{
  font-size:13px;
  font-weight:700;
  letter-spacing:.22em;
  color:var(--g);
  margin-bottom:12px;
}
.side h2 span{display:inline-block;border-bottom:3px solid var(--b);padding-bottom:3px;}

.side-list{list-style:none;display:grid;gap:5px;}
.side-list a{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:42px;
  padding:8px 9px;
  font-size:15px;
  color:#cfcfcf;
  border-left:3px solid #1d1d1d;
}
.side-list .num{font-size:12px;color:var(--g);letter-spacing:.06em;}
.side-list a:hover{background:var(--g);color:var(--k);border-left-color:var(--k);}
.side-list a:hover .num{color:var(--k);}

.side-home{
  display:inline-flex;
  align-items:center;
  min-height:42px;
  padding:8px 14px;
  border:2px solid var(--g);
  font-size:15px;
  color:var(--g);
}
.side-home:hover{background:var(--g);color:var(--k);}

/* ---------- 正文 ---------- */
.prose{
  min-width:0;
  padding:44px 32px 70px;
  max-width:960px;
}

.prose div{
  padding-top:34px;
  margin-top:46px;
  border-top:3px solid var(--line);
  scroll-margin-top:110px;
}
.prose div:first-child{
  margin-top:0;
  padding-top:0;
  border-top:4px solid var(--b);
}

.prose h2{
  font-family:var(--disp);
  font-weight:900;
  font-size:clamp(1.35rem,3vw,1.95rem);
  line-height:1.3;
  margin:8px 0 16px;
  color:var(--w);
}
.prose h2 span{
  display:inline-block;
  background:var(--g);
  color:var(--k);
  padding:2px 10px;
}

.prose h3{
  font-size:1.12rem;
  line-height:1.45;
  color:var(--g);
  margin:24px 0 10px;
  border-left:5px solid var(--b);
  padding-left:11px;
}
.prose h3 span{display:inline-block;border-bottom:2px solid var(--b);}

.prose p{margin:0 0 17px;}
.prose ul,.prose ol{margin:0 0 18px;padding-left:24px;}
.prose li{margin-bottom:8px;}
.prose li::marker{color:var(--g);}
.prose a{color:var(--g);border-bottom:2px solid var(--b);}
.prose a:hover{background:var(--g);color:var(--k);}
.prose strong{color:var(--g);}
.prose em{color:#c9c9c9;}
.prose blockquote{
  border-left:7px solid var(--g);
  background:#080808;
  padding:14px 16px;
  margin:0 0 18px;
  color:#dcdcdc;
}
.prose figure{margin:0 0 18px;}
.prose figcaption{font-size:13px;color:#9a9a9a;padding-top:6px;}
.prose img{border:3px solid var(--g);height:auto;}
.prose time{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  color:var(--k);
  background:var(--g);
  padding:2px 9px;
  margin-bottom:12px;
}
.prose table{width:100%;border-collapse:collapse;margin:0 0 18px;font-size:15px;}
.prose th,.prose td{border:2px solid #202020;padding:10px;text-align:left;vertical-align:top;}
.prose th{background:var(--b);color:var(--w);}
.prose code,.prose kbd{
  font-family:var(--mono);
  background:#101010;
  border:1px solid var(--g);
  padding:1px 5px;
  font-size:.92em;
}
.prose pre{
  background:#080808;
  border:2px solid var(--g);
  padding:14px;
  overflow-x:auto;
  margin:0 0 18px;
}
.prose pre code{border:0;background:none;padding:0;}
.prose hr{border:0;border-top:3px solid var(--b);margin:26px 0;}

/* ---------- 页脚 ---------- */
.foot{
  border-top:4px solid var(--g);
  background:#050505;
  padding:26px 16px 16px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1fr auto auto;
  gap:16px 26px;
  align-items:start;
  max-width:1040px;
  margin:0 auto;
}
.foot address{
  font-style:normal;
  font-family:var(--disp);
  font-weight:900;
  font-size:15px;
  letter-spacing:.06em;
  color:var(--g);
}
.foot-links{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:2px 14px;
}
.foot-links a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  font-size:14px;
  color:#bfbfbf;
  border-bottom:2px solid transparent;
}
.foot-links a:hover{color:var(--g);border-bottom-color:var(--b);}

.sub{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.sub-label{
  font-size:13px;
  letter-spacing:.16em;
  color:var(--g);
  font-weight:700;
}
.sub input{
  background:var(--k);
  border:2px solid var(--g);
  color:var(--w);
  font-family:var(--mono);
  font-size:15px;
  padding:8px 10px;
  min-height:42px;
  width:132px;
  border-radius:0;
}
.sub button{
  background:var(--g);
  color:var(--k);
  border:2px solid var(--g);
  font-family:var(--mono);
  font-weight:700;
  font-size:15px;
  padding:8px 16px;
  min-height:42px;
  cursor:pointer;
  border-radius:0;
}
.sub button:hover{background:var(--k);color:var(--g);}

.copy{
  max-width:1040px;
  margin:20px auto 0;
  padding-top:12px;
  border-top:1px solid var(--line);
  text-align:center;
  font-size:13px;
  color:#7d7d7d;
}

/* ---------- 入场 ---------- */
@keyframes drop{
  from{opacity:0;transform:translateY(-6px);}
  to{opacity:1;transform:none;}
}
html.js .nav a{animation:drop 1ms linear both;}

html.js .prose > div,
html.js .side-box{opacity:0;transform:translateY(14px);}
html.js .prose > div.in,
html.js .side-box.in{opacity:1;transform:none;}

/* ---------- 移动端 ---------- */
@media (max-width:900px){
  .hero{grid-template-columns:1fr;min-height:0;}
  .hero-copy{padding:40px 18px 34px;gap:16px;}
  .hero-copy h1{border-bottom-width:6px;}
  .hero-fig{border-left:0;border-top:4px solid var(--b);}
  .hero-img,.hero-plate{height:230px;min-height:230px;}

  .board{grid-template-columns:1fr;}
  .side{
    position:static;
    border-right:0;
    border-bottom:4px solid var(--g);
    padding:18px 14px 22px;
  }
  .side-list{
    grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
    gap:4px;
  }
  .side-box + .side-box{margin-top:18px;padding-top:16px;}

  .prose{padding:28px 16px 52px;}

  .foot-grid{grid-template-columns:1fr;}
  .copy{margin-top:16px;}
}

@media (max-width:420px){
  .top{padding:7px 9px;gap:7px;}
  .nav a{padding:10px 9px;font-size:13.5px;}
  .hero-copy h1{font-size:clamp(1.7rem,8.4vw,2.3rem);}
  .hero-desc{font-size:16px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  html.js .nav a{animation:none;}
  html.js .prose > div,
  html.js .side-box{opacity:1;transform:none;}
}

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