@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=VT323&display=swap');

:root{
  --neon:#69ff69;
  --cyan:#00ffff;
  --ink:#172617;
  --line:rgba(105,255,105,.36);
  --line-soft:rgba(105,255,105,.2);
  --chrome:linear-gradient(180deg,#ffffff,#cfe0cf 34%,#8ea48e 52%,#f2fff2 74%,#9fb69f);
  --bubble:linear-gradient(135deg,#69ff69,#00ffff);
  --pixel:'Press Start 2P','VT323',ui-monospace,monospace;
  --body:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 84% -8%, #24471f 0%, rgba(23,38,23,0) 62%),
    radial-gradient(900px 520px at 6% 8%, rgba(0,255,255,.12) 0%, rgba(23,38,23,0) 60%),
    #101c10;
  color:#e6ffe6;
  font:17px/1.7 var(--body);
  overflow-x:hidden;
}
img{max-width:100%;height:auto}
a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3{text-wrap:balance}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

/* ---------- 顶栏 ---------- */
.hdr{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:6px;
  padding:9px 10px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(0,255,255,.1),rgba(105,255,105,.04));
}
.hdr-r{display:flex;justify-content:flex-end;align-items:center;gap:6px}
.drawer{position:relative;min-width:0}
.drawer-l{justify-self:start}
.drawer-btn{
  list-style:none;
  display:inline-flex;align-items:center;gap:7px;
  min-height:44px;padding:0 12px;
  border:1.5px solid var(--line);border-radius:999px;
  background:rgba(105,255,105,.07);
  color:var(--neon);
  font-family:var(--pixel);font-size:11px;letter-spacing:.06em;
  cursor:pointer;white-space:nowrap;
}
.drawer-btn::-webkit-details-marker{display:none}
.drawer[open]>.drawer-btn{background:rgba(0,255,255,.16);border-color:var(--cyan);color:var(--cyan)}
.bars{
  width:14px;height:10px;flex:0 0 auto;
  background:
    linear-gradient(var(--neon),var(--neon)) 0 0/100% 2px no-repeat,
    linear-gradient(var(--neon),var(--neon)) 0 4px/100% 2px no-repeat,
    linear-gradient(var(--neon),var(--neon)) 0 8px/100% 2px no-repeat;
}
.logo{justify-self:center;text-decoration:none;padding:4px 8px;border-radius:14px;min-height:40px;display:inline-flex;align-items:center}
.logo-t{
  font-family:var(--pixel);font-size:15px;letter-spacing:.05em;
  background:var(--bubble);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 7px rgba(105,255,105,.55));
  white-space:nowrap;
}
.cta{
  display:inline-flex;align-items:center;min-height:44px;padding:0 14px;
  border-radius:999px;border:1.5px solid var(--cyan);
  background:linear-gradient(180deg,#e6fffe,#00ffff 58%,#00c3c3);
  color:#03211c;font-weight:700;text-decoration:none;font-size:16px;
  box-shadow:0 0 14px rgba(0,255,255,.4);
  white-space:nowrap;
}
.cta:hover{filter:brightness(1.1)}

.dlist{
  list-style:none;
  position:absolute;top:calc(100% + 8px);left:0;z-index:60;
  min-width:196px;margin:0;padding:8px;
  display:grid;gap:2px;
  border:1.5px solid var(--line);border-radius:18px;
  background:#0b150b;
  box-shadow:inset 0 0 0 1px rgba(0,255,255,.16);
}
.drawer-r .dlist{left:auto;right:0}
.dlist a{
  display:block;padding:12px 10px;border-radius:12px;
  color:#dcffdf;text-decoration:none;font-size:16px;
}
.dlist a:hover,.dlist a:focus-visible{background:rgba(0,255,255,.14);color:var(--cyan)}

/* ---------- 粘性锚点条 ---------- */
.jumpbar{
  position:sticky;top:0;z-index:50;
  overflow-x:auto;scrollbar-width:none;
  background:rgba(9,17,9,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
}
.jumpbar::-webkit-scrollbar{display:none}
.jumpnav ul{
  display:flex;gap:7px;align-items:center;
  list-style:none;margin:0;padding:8px 10px;
  min-width:max-content;
}
.jumpnav a{
  display:block;padding:10px 13px;border-radius:999px;
  border:1px solid rgba(0,255,255,.38);
  color:#d6f2f0;text-decoration:none;font-size:16px;white-space:nowrap;
}
.jumpnav a:hover,.jumpnav a:focus-visible{background:rgba(105,255,105,.16);color:var(--neon);border-color:var(--neon)}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  min-height:45vh;
  display:flex;align-items:flex-end;
  padding:clamp(18px,4vw,40px) clamp(16px,4vw,40px) clamp(48px,10vw,76px);
  overflow:hidden;
  clip-path:polygon(0 0,100% 0,100% 88%,54% 100%,0 86%);
  background:linear-gradient(122deg,#1b3a1c,#0e2418 52%,#0e2f38);
  border-bottom:1px solid rgba(105,255,105,.25);
}
.hero-fig{margin:0;position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-fig img{width:100%;height:100%;object-fit:cover;display:block;opacity:.5;filter:saturate(1.25) contrast(1.06)}
.hero::after{
  content:'';position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(90deg,rgba(9,18,9,.92) 0%,rgba(9,18,9,.42) 58%,rgba(9,18,9,.1) 100%),
    linear-gradient(180deg,rgba(0,255,255,.08),rgba(105,255,105,.05));
}
.hero-txt{position:relative;z-index:2;max-width:860px}
.hero h1{
  margin:0;
  font-family:var(--pixel);font-weight:400;
  font-size:clamp(18px,4.2vw,30px);
  line-height:1.85;letter-spacing:.01em;
  color:#f2fff0;
  text-shadow:0 0 10px rgba(105,255,105,.7),0 0 34px rgba(0,255,255,.4);
}

/* ---------- 主体 ---------- */
main{padding:clamp(18px,3vw,34px) 14px clamp(30px,5vw,48px)}
.wrap{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1fr;gap:18px}
.body{min-width:0}

.side{
  border:1.5px solid var(--line);border-radius:18px;
  padding:14px;
  background:linear-gradient(180deg,rgba(105,255,105,.09),rgba(0,255,255,.05));
}
.side-h{
  margin:0;font-family:var(--pixel);font-weight:400;
  font-size:13px;letter-spacing:.12em;color:var(--cyan);
  text-shadow:0 0 9px rgba(0,255,255,.6);
}
.subtitle{margin:5px 0 10px;font-size:16px;line-height:1.5;color:#9ddca2;letter-spacing:.04em}
.side-list{list-style:none;margin:0;padding:0;counter-reset:s}
.side-list li{counter-increment:s}
.side-list a{
  display:block;padding:11px 4px;min-height:44px;
  color:#dcffe0;text-decoration:none;font-size:16px;
  border-top:1px dashed var(--line-soft);
}
.side-list a::before{
  content:'0' counter(s);
  font-family:var(--pixel);font-size:10px;color:var(--neon);
  margin-right:8px;letter-spacing:.06em;
}
.side-list a:hover,.side-list a:focus-visible{color:var(--cyan)}

.doc{
  border:1.5px solid var(--line);border-radius:18px;
  padding:6px clamp(14px,3vw,26px);
  background:rgba(8,16,8,.55);
}
.doc section{padding:20px 0 24px;border-bottom:1px solid var(--line-soft)}
.doc section:last-child{border-bottom:0;padding-bottom:8px}
.doc h2{
  margin:0 0 12px;
  font-family:var(--pixel);font-weight:400;
  font-size:clamp(15px,2.5vw,19px);line-height:1.9;
  color:#f0fff0;
  text-shadow:0 0 12px rgba(0,255,255,.5);
}
.doc h3{
  margin:20px 0 8px;
  font-size:18px;line-height:1.6;
  color:#c8ffd2;
  letter-spacing:.03em;
}
.doc p{margin:0 0 14px}
.doc ul,.doc ol{pargin:0 0 14px;padding-left:22px;margin:0 0 14px}
.doc li{margin:7px 0}
.doc li::marker{color:var(--neon)}
.doc a{color:var(--cyan);font-weight:600}
.doc strong{color:#b6ffc4}
.doc img{border-radius:18px;border:1.5px solid var(--line);margin:10px 0}
.doc blockquote{
  margin:16px 0;padding:12px 16px;
  border-left:3px solid var(--neon);
  border-radius:0 18px 18px 0;
  background:rgba(105,255,105,.08);
  color:#d8ffdd;
}
.doc hr{border:0;border-top:1px dashed var(--line-soft);margin:18px 0}
.doc table{width:100%;border-collapse:collapse;font-size:16px}
.doc th,.doc td{border:1px solid var(--line-soft);padding:9px 10px;text-align:left}
.doc th{background:rgba(0,255,255,.1);color:#d9fffb}

section[id]{scroll-margin-top:70px}

.totop{margin:16px 0 0;text-align:right}
.totop a{
  display:inline-flex;align-items:center;min-height:44px;padding:0 16px;
  border-radius:999px;border:1.5px dashed var(--line);
  color:var(--neon);text-decoration:none;font-size:16px;
  background:rgba(105,255,105,.07);
}
.totop a:hover{background:rgba(0,255,255,.14);border-color:var(--cyan);color:var(--cyan)}

/* ---------- 页脚 ---------- */
.foot{
  margin-top:22px;padding:20px 14px 12px;
  border-top:1.5px solid var(--line);
  background:linear-gradient(180deg,rgba(0,255,255,.07),#0a130a 60%);
}
.mega{overflow:hidden;line-height:.92}
.mega-t{
  display:block;text-align:center;
  font-family:var(--pixel);
  font-size:clamp(34px,12.5vw,116px);
  letter-spacing:-.01em;
  background:var(--chrome);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 14px rgba(105,255,105,.4));
}
.foot-cols{
  max-width:1180px;margin:20px auto 0;
  display:grid;grid-template-columns:1fr;gap:14px;
}
.fad{
  font-style:normal;color:#c3ffc8;
  font-family:var(--pixel);font-size:12px;line-height:2;
  letter-spacing:.08em;
}
.flist{list-style:none;margin:0;padding:0}
.flist a{
  display:flex;align-items:center;min-height:44px;padding:10px 0;
  color:#dcffdf;text-decoration:none;font-size:16px;
  border-bottom:1px dashed var(--line-soft);
}
.flist a:hover,.flist a:focus-visible{color:var(--cyan)}
.foot-base{
  max-width:1180px;margin:18px auto 0;padding-top:10px;
  border-top:1px solid var(--line-soft);
  text-align:center;color:#8fc394;font-size:16px;
}
.foot-base p{margin:0}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease;transition-delay:var(--d,0ms)}
.js .reveal.in{opacity:1;transform:none}

/* ---------- 断点 ---------- */
@media (min-width:760px){
  .foot-cols{grid-template-columns:1.1fr 1fr 1fr}
  .hdr{padding:11px 18px}
}
@media (min-width:960px){
  .hdr{padding:13px 22px;gap:12px}
  .drawer-btn{
    min-height:0;padding:8px 10px;border:0;background:none;
    font-size:11px;color:var(--cyan);letter-spacing:.14em;
  }
  .drawer[open]>.drawer-btn{background:none;color:var(--neon)}
  .drawer-btn .bars{display:none}
  .dlist{
    position:static;min-width:0;display:flex;flex-wrap:wrap;gap:2px;
    margin:0;padding:0;border:0;background:none;box-shadow:none;
  }
  .drawer-l .dlist{justify-content:flex-start}
  .drawer-r .dlist{justify-content:flex-end}
  .dlist a{padding:10px 9px;font-size:16px;border-radius:10px}
  .dlist a:hover{background:rgba(0,255,255,.12)}
  .logo-t{font-size:17px}
  .wrap{grid-template-columns:252px minmax(0,1fr);gap:26px;align-items:start}
  .side{position:sticky;top:66px}
  .hero{min-height:45vh}
}
@media (max-width:380px){
  .drawer-btn .bars{display:none}
  .drawer-btn{padding:0 10px}
  .cta{padding:0 11px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
}

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