:root{
  --ink:#0b130d;
  --ink2:#192617;
  --neon:#87ff71;
  --cyan:#01cdfe;
  --pink:#ff71ce;
  --violet:#b967ff;
  --txt:#dff6e3;
  --dim:rgba(223,246,227,.68);
  --line:rgba(135,255,113,.22);
  --glass:rgba(255,255,255,.05);
  --r:4px;
  --wide:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
  background:#0b130d;
}
body{
  margin:0;
  padding:0;
  background:transparent;
  color:var(--txt);
  font-family:"Space Mono",ui-monospace,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",monospace;
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  background:
    radial-gradient(92vw 56vh at 78% -10%,rgba(255,113,206,.34),transparent 62%),
    radial-gradient(70vw 46vh at 10% 2%,rgba(1,205,254,.24),transparent 66%),
    radial-gradient(64vw 44vh at 52% 104%,rgba(185,103,255,.22),transparent 72%),
    linear-gradient(180deg,#0a1510,#0b130d 46%,#101a12);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  opacity:.55;
  background:
    repeating-linear-gradient(180deg,rgba(0,0,0,.3) 0 1px,transparent 1px 3px),
    linear-gradient(180deg,transparent 58%,rgba(135,255,113,.07));
}
.wrap{
  width:100%;
  max-width:var(--wide);
  margin:0 auto;
  padding-left:clamp(14px,3.4vw,34px);
  padding-right:clamp(14px,3.4vw,34px);
}
a{color:var(--cyan)}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px}
.skip{
  position:absolute;
  left:-9999px;
  top:0;
  z-index:90;
  background:var(--neon);
  color:#08170c;
  padding:10px 16px;
  font-size:16px;
}
.skip:focus{left:8px;top:8px}

/* 顶部 */
.top{
  position:sticky;
  top:0;
  z-index:40;
  background:rgba(9,18,12,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.bar{
  display:flex;
  align-items:center;
  gap:10px;
  padding-top:9px;
  padding-bottom:9px;
}
.mark{
  flex:0 0 auto;
  width:42px;
  height:42px;
  display:grid;
  place-items:center;
  border:1px solid var(--cyan);
  border-radius:var(--r);
  background:rgba(1,205,254,.09);
  color:var(--neon);
  text-decoration:none;
  font-family:"Syncopate","PingFang SC",sans-serif;
  font-weight:700;
  font-size:18px;
  line-height:1;
  box-shadow:0 0 16px -6px var(--cyan);
}
.mark img{width:100%;height:100%;object-fit:contain;border-radius:3px;display:block}
.primary{
  flex:1 1 auto;
  min-width:0;
  display:flex;
  gap:5px;
  overflow-x:auto;
  scrollbar-width:none;
}
.primary::-webkit-scrollbar{display:none}
.primary a{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:42px;
  padding:0 11px;
  border-radius:var(--r);
  border:1px solid transparent;
  color:var(--txt);
  text-decoration:none;
  font-size:16px;
  white-space:nowrap;
}
.primary a:hover,.primary a:focus-visible{
  color:var(--neon);
  border-color:var(--line);
  background:rgba(135,255,113,.08);
}
.dot{
  width:6px;
  height:6px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--neon);
  box-shadow:0 0 9px var(--neon);
}
.docks{
  border-top:1px dashed rgba(1,205,254,.22);
  background:rgba(1,205,254,.05);
}
.dock{
  display:flex;
  gap:4px;
  overflow-x:auto;
  padding-top:6px;
  padding-bottom:6px;
  scrollbar-width:none;
}
.dock::-webkit-scrollbar{display:none}
.dock a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:40px;
  padding:0 9px;
  border-radius:3px;
  color:var(--dim);
  text-decoration:none;
  font-size:16px;
  white-space:nowrap;
  letter-spacing:.02em;
}
.dock a:hover,.dock a:focus-visible{color:#0b130d;background:var(--cyan)}
.dock b{
  font-family:"Syncopate",sans-serif;
  font-weight:700;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--cyan);
}
.dock a:hover b,.dock a:focus-visible b{color:#062024}

/* 首屏 */
.hero{
  position:relative;
  isolation:isolate;
  min-height:45vh;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:
    linear-gradient(96deg,rgba(9,18,12,.95) 6%,rgba(9,18,12,.62) 48%,rgba(9,18,12,.24)),
    linear-gradient(180deg,rgba(9,18,12,.5),transparent 38%,rgba(9,18,12,.86));
}
.shots{position:absolute;inset:0;z-index:0;will-change:transform}
.shot{position:absolute;inset:0;opacity:0;transition:opacity 1.1s ease}
.shot.on{opacity:1}
.shot img{width:100%;height:100%;object-fit:cover;display:block;filter:hue-rotate(-8deg) saturate(1.1)}
.hero-grid{
  position:absolute;
  left:-10%;
  right:-10%;
  bottom:0;
  height:40%;
  z-index:1;
  pointer-events:none;
  opacity:.5;
  transform:perspective(340px) rotateX(66deg);
  transform-origin:bottom center;
  background-image:
    linear-gradient(rgba(1,205,254,.4) 1px,transparent 1px),
    linear-gradient(90deg,rgba(1,205,254,.3) 1px,transparent 1px);
  background-size:54px 30px;
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 74%);
  mask-image:linear-gradient(180deg,transparent,#000 74%);
  animation:hueSpin 20s linear infinite alternate;
}
@keyframes hueSpin{
  from{filter:hue-rotate(0deg)}
  to{filter:hue-rotate(46deg)}
}
.hero-copy{
  position:relative;
  z-index:2;
  padding-top:clamp(28px,6vw,58px);
  padding-bottom:clamp(22px,5vw,46px);
}
.hero-copy h1{
  margin:0 0 12px;
  font-family:"Syncopate","PingFang SC","Microsoft YaHei",sans-serif;
  font-weight:700;
  font-size:clamp(26px,6vw,54px);
  line-height:1.16;
  letter-spacing:.03em;
  color:#fff;
  text-shadow:0 0 14px rgba(135,255,113,.6),0 0 36px rgba(1,205,254,.45);
}
.lead{
  max-width:48ch;
  margin:0;
  padding-left:12px;
  border-left:2px solid var(--cyan);
  color:var(--neon);
  font-size:17px;
  text-shadow:0 0 12px rgba(1,205,254,.45);
}

/* 主体 */
.stage{
  display:grid;
  grid-template-columns:minmax(0,1fr) 288px;
  gap:clamp(18px,3vw,32px);
  align-items:start;
  padding-top:clamp(26px,5vw,52px);
  padding-bottom:clamp(20px,4vw,40px);
}
.doc{min-width:0;counter-reset:sec}
.doc section{
  position:relative;
  margin-bottom:clamp(18px,3vw,30px);
  padding:clamp(18px,3vw,34px);
  padding-top:clamp(22px,3.4vw,38px);
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r);
  backdrop-filter:blur(10px);
  box-shadow:0 24px 50px -40px #000,inset 0 0 0 1px rgba(1,205,254,.06);
  scroll-margin-top:136px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.doc section::before{
  counter-increment:sec;
  content:"0" counter(sec);
  position:absolute;
  top:10px;
  right:14px;
  font-family:"Syncopate",sans-serif;
  font-size:14px;
  letter-spacing:.2em;
  color:rgba(1,205,254,.62);
}
.doc section:hover{
  border-color:rgba(1,205,254,.45);
  box-shadow:0 26px 56px -38px #000,0 0 26px -18px var(--cyan);
}
.doc h2{
  margin:0 0 .7em;
  padding-right:46px;
  font-family:"Syncopate","PingFang SC","Microsoft YaHei",sans-serif;
  font-weight:700;
  font-size:clamp(20px,3vw,28px);
  line-height:1.32;
  letter-spacing:.02em;
  color:var(--neon);
  text-shadow:0 0 16px rgba(135,255,113,.42);
}
.doc h3,.doc h4{
  margin:1.4em 0 .6em;
  font-family:"Syncopate","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:18px;
  line-height:1.4;
  color:var(--cyan);
}
.doc p{margin:0 0 1.05em}
.doc p:last-child{margin-bottom:0}
.doc a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.doc a:hover{color:var(--neon)}
.doc ul,.doc ol{margin:0 0 1.05em;padding-left:1.4em}
.doc li{margin:.42em 0}
.doc strong{color:#fff}
.doc blockquote{
  margin:0 0 1.05em;
  padding:10px 16px;
  border-left:2px solid var(--pink);
  background:rgba(255,113,206,.09);
}
.doc img{
  display:block;
  max-width:100%;
  height:auto;
  margin:0 0 1.05em;
  border:1px solid var(--line);
  border-radius:var(--r);
}
.doc table{
  width:100%;
  margin:0 0 1.05em;
  border-collapse:collapse;
  font-size:16px;
}
.doc th,.doc td{border:1px solid var(--line);padding:8px 10px;text-align:left}
.doc th{background:rgba(1,205,254,.12);color:var(--cyan)}
.doc code{
  background:rgba(1,205,254,.15);
  padding:.1em .35em;
  border-radius:3px;
  font-size:.94em;
}
.doc pre{
  overflow-x:auto;
  padding:14px;
  background:rgba(0,0,0,.5);
  border:1px solid var(--line);
  border-radius:var(--r);
}
.doc pre code{background:none;padding:0}
.doc hr{border:0;border-top:1px dashed var(--line);margin:1.5em 0}

/* 侧栏 */
.rail{
  position:sticky;
  top:126px;
  padding:15px 14px;
  background:rgba(12,24,17,.66);
  border:1px solid rgba(1,205,254,.3);
  border-radius:var(--r);
  backdrop-filter:blur(10px);
  box-shadow:0 0 34px -20px var(--cyan);
}
.rail h2{
  margin:0;
  font-family:"Syncopate","PingFang SC",sans-serif;
  font-weight:700;
  font-size:17px;
  letter-spacing:.06em;
  color:var(--cyan);
  text-shadow:0 0 12px rgba(1,205,254,.55);
}
.rail .subtitle{
  margin:2px 0 11px;
  font-size:16px;
  letter-spacing:.05em;
  color:var(--neon);
}
.rails{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.rails a{
  display:flex;
  align-items:center;
  gap:9px;
  min-height:40px;
  padding:0 7px;
  border-left:2px solid transparent;
  border-radius:3px;
  color:var(--txt);
  text-decoration:none;
  font-size:16px;
}
.rails a:hover,.rails a:focus-visible{
  background:rgba(135,255,113,.1);
  border-left-color:var(--neon);
  color:var(--neon);
}
.rails b{
  font-family:"Syncopate",sans-serif;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--cyan);
}
.rail-top{margin:10px 0 0;padding-top:8px;border-top:1px dashed var(--line)}
.rail-top a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  color:var(--neon);
  text-decoration:none;
  font-size:16px;
}

/* 页脚 */
.foot{
  margin-top:clamp(28px,5vw,52px);
  border-top:1px solid var(--line);
  background:rgba(8,16,11,.82);
  backdrop-filter:blur(8px);
}
.foot-grid{
  display:grid;
  grid-template-columns:1fr 1.15fr .95fr;
  gap:clamp(16px,3vw,30px);
  padding-top:clamp(24px,4vw,44px);
  padding-bottom:clamp(20px,3vw,34px);
}
address{
  font-style:normal;
  font-size:16px;
  letter-spacing:.05em;
  color:var(--neon);
  text-shadow:0 0 12px rgba(135,255,113,.38);
}
address .host{color:var(--dim);text-shadow:none;letter-spacing:0}
.foot-links{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:2px}
.foot-links a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  color:var(--txt);
  text-decoration:none;
  font-size:16px;
}
.foot-links a:hover{color:var(--cyan)}
.foot dl{margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 12px}
.foot dt,.foot dd{margin:0}
.foot dt a,.foot dd a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  color:var(--dim);
  text-decoration:none;
  font-size:16px;
}
.foot dt a{color:var(--cyan)}
.foot dt a:hover,.foot dd a:hover{color:var(--neon)}
.sub label{
  display:block;
  margin-bottom:8px;
  font-size:16px;
  letter-spacing:.06em;
  color:var(--cyan);
}
.sub input{
  width:100%;
  min-height:44px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:var(--r);
  background:rgba(0,0,0,.42);
  color:var(--txt);
  font:inherit;
  font-size:16px;
}
.sub button{
  width:100%;
  min-height:44px;
  margin-top:9px;
  border:0;
  border-radius:var(--r);
  font:inherit;
  font-size:16px;
  font-weight:700;
  letter-spacing:.1em;
  color:#08170c;
  background:linear-gradient(120deg,var(--neon),var(--cyan));
  box-shadow:0 0 24px -9px var(--neon);
  cursor:pointer;
}
.sub button:hover{filter:hue-rotate(-20deg) saturate(1.2)}
.base{border-top:1px dashed var(--line);padding-top:12px;padding-bottom:12px}
.base p{margin:0;font-size:16px;letter-spacing:.08em;color:var(--dim)}

@media (max-width:900px){
  .stage{grid-template-columns:minmax(0,1fr)}
  .rail{position:static;order:-1}
  .rail .rails{grid-template-columns:repeat(2,minmax(0,1fr))}
  .doc section{scroll-margin-top:150px}
}
@media (max-width:760px){
  .foot-grid{grid-template-columns:minmax(0,1fr)}
  .hero{min-height:44vh}
  .hero-copy h1{font-size:clamp(24px,7.6vw,38px)}
  .doc section{padding:18px 16px;padding-top:24px}
  .doc h2{font-size:20px;padding-right:38px}
}
@media (max-width:420px){
  .rail .rails{grid-template-columns:minmax(0,1fr)}
  .mark{width:40px;height:40px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
}

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