@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600;700&family=Fira+Sans:wght@300;400;500;600;700&display=swap');

:root{
  --lime:#80ff00;
  --green:#00ff00;
  --ink:#1f2617;
  --ink2:#28311d;
  --paper:#ecf9dc;
  --mute:#b9cf9a;
  --line:rgba(128,255,0,.38);
  --bar:70px;
  --mono:"Fira Code",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:"Fira Sans",system-ui,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

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

body{
  margin:0;
  padding-bottom:calc(var(--bar) + 26px);
  background-color:var(--ink);
  background-image:
    repeating-linear-gradient(0deg,rgba(128,255,0,.055) 0 1px,transparent 1px 5px),
    radial-gradient(120% 70% at 88% -5%,rgba(0,255,0,.16),transparent 62%);
  color:var(--paper);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.62;
  overflow-x:hidden;
  max-width:100%;
}

a{color:var(--green);text-decoration:none;}
img{max-width:100%;}

/* 顶部滚动条 */
.marq{position:relative;overflow:hidden;background:var(--lime);color:var(--ink);border-bottom:3px solid var(--ink);max-width:100%;}
.marq__in{
  display:inline-block;white-space:nowrap;
  font-family:var(--mono);font-size:15px;font-weight:700;letter-spacing:.08em;
  padding:5px 0;animation:marq 30s linear infinite;
}
.marq b{padding:0 .5em;font-weight:400;}
@keyframes marq{to{transform:translateX(-50%);}}

/* 底部固定条 */
.bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:center;gap:8px;
  padding:10px 12px calc(10px + env(safe-area-inset-bottom,0px));
  background:var(--ink);border-top:3px solid var(--lime);
  box-shadow:0 -8px 0 rgba(0,255,0,.14);
}
.brand{
  flex:0 0 auto;display:flex;align-items:center;min-height:44px;padding:10px 6px;
  font-family:var(--mono);font-weight:700;font-size:16px;letter-spacing:-.02em;
  color:var(--lime);white-space:nowrap;
}
.find{
  flex:1 1 auto;min-width:0;display:flex;
  border:2px solid var(--lime);background:rgba(128,255,0,.07);
}
.find input{
  flex:1 1 auto;min-width:0;width:100%;background:none;border:0;color:var(--paper);
  font-family:var(--mono);font-size:16px;padding:8px 10px;min-height:44px;
}
.find input::placeholder{color:var(--mute);}
.find button{
  flex:0 0 auto;border:0;border-left:2px solid var(--lime);background:var(--lime);color:var(--ink);
  font-family:var(--mono);font-weight:700;font-size:16px;padding:0 14px;min-height:44px;cursor:pointer;
}
.burger{
  flex:0 0 auto;border:2px solid var(--lime);background:transparent;color:var(--lime);
  font-family:var(--mono);font-weight:700;font-size:16px;padding:10px 12px;min-height:44px;
  cursor:pointer;white-space:nowrap;
}
.burger:hover,.find button:hover{background:var(--green);color:var(--ink);}

/* 全屏遮罩菜单 */
.menu{
  position:fixed;inset:0;z-index:90;display:flex;flex-direction:column;gap:18px;
  padding:20px 16px 28px;overflow-y:auto;overflow-x:hidden;
  background-color:var(--ink);
  background-image:radial-gradient(110% 60% at 8% 0%,rgba(128,255,0,.2),transparent 70%);
  transform:translateY(102%);visibility:hidden;
  transition:transform .3s ease,visibility .3s;
}
body.menu-on .menu{transform:none;visibility:visible;}
body.menu-on{overflow:hidden;}
.menu__top{display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:3px solid var(--lime);padding-bottom:14px;}
.menu__brand{font-family:var(--mono);font-weight:700;font-size:18px;color:var(--lime);letter-spacing:-.02em;}
.menu__x{
  flex:0 0 auto;border:2px solid var(--lime);background:var(--lime);color:var(--ink);
  font-family:var(--mono);font-weight:700;font-size:16px;padding:10px 16px;min-height:44px;cursor:pointer;
}
.menu__nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px;}
.menu__a{
  display:flex;align-items:baseline;gap:12px;min-height:52px;padding:13px 4px;
  font-family:var(--mono);font-weight:600;font-size:clamp(20px,5.6vw,34px);
  color:var(--paper);border-bottom:2px dashed var(--line);
}
.menu__a i{font-style:normal;font-size:14px;letter-spacing:.12em;color:var(--green);}
.menu__a:hover{color:var(--lime);}

/* 首屏拼贴 */
.hero{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,1fr);gap:20px;align-content:center;
  min-height:70vh;padding:24px 16px 34px;max-width:100%;
}
.hero__copy{order:1;text-align:right;min-width:0;}
.hero__art{order:2;position:relative;min-width:0;min-height:54vw;}
.hero__h1{
  margin:0 0 14px;font-family:var(--mono);font-weight:700;
  font-size:clamp(36px,9.4vw,84px);line-height:.94;letter-spacing:-.05em;
  color:var(--paper);text-shadow:5px 5px 0 rgba(0,255,0,.22);
  overflow-wrap:anywhere;
}
.hero__desc{margin:0 0 0 auto;max-width:36ch;color:var(--mute);font-size:16px;}
.hero__fig{
  position:absolute;margin:0;overflow:hidden;max-width:62%;
  border:3px solid var(--lime);background:var(--ink2);
  box-shadow:8px 8px 0 rgba(0,255,0,.32);
}
.hero__fig img{display:block;width:100%;height:100%;object-fit:cover;filter:saturate(165%) contrast(1.06);}
.f1{top:0;left:0;width:62%;aspect-ratio:4/3;transform:rotate(-4.5deg);z-index:1;}
.f2{bottom:2%;right:0;width:54%;max-width:54%;aspect-ratio:1/1;transform:rotate(5deg);z-index:2;}
.stk{
  position:absolute;z-index:5;max-width:58%;padding:5px 9px;border:2px solid var(--ink);
  background:var(--lime);color:var(--ink);
  font-family:var(--mono);font-weight:700;font-size:14px;letter-spacing:.04em;
  animation:jit 2.8s ease-in-out infinite;
}
.stk--1{top:5%;right:3%;transform:rotate(-7deg);}
.stk--2{bottom:16%;left:2%;background:var(--green);transform:rotate(6deg);animation-delay:.8s;}
@keyframes jit{
  0%,100%{transform:rotate(-7deg) translateY(0);}
  50%{transform:rotate(-3deg) translateY(-4px);}
}

/* 侧栏 + 正文 */
.shell{
  max-width:1180px;margin:0 auto;padding:8px 16px 0;
  display:grid;grid-template-columns:minmax(0,1fr);gap:24px;
}
.side{
  min-width:0;max-width:100%;
  border:2px solid var(--lime);background:rgba(128,255,0,.06);padding:14px;
}
.side__e{display:block;font-family:var(--mono);font-size:15px;font-weight:600;letter-spacing:.2em;color:var(--green);}
.side__t{margin:4px 0 12px;font-family:var(--mono);font-size:19px;line-height:1.2;color:var(--lime);letter-spacing:-.02em;}
.side__nav ul{list-style:none;margin:0;padding:0;display:flex;gap:6px;overflow-x:auto;-webkit-overflow-scrolling:touch;}
.side__a{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:10px 8px;
  font-family:var(--mono);font-size:16px;color:var(--paper);
  border-bottom:1px dashed var(--line);white-space:nowrap;
}
.side__a i{font-style:normal;font-size:14px;color:var(--green);}
.side__a:hover{background:var(--lime);color:var(--ink);}

.main{min-width:0;max-width:100%;}
.prose{min-width:0;max-width:74ch;font-size:17px;line-height:1.72;overflow-wrap:break-word;}
.prose div{scroll-margin-top:24px;padding-bottom:6px;}
.prose div + div{margin-top:38px;border-top:2px dashed var(--line);padding-top:34px;}
.prose small{
  display:block;margin-bottom:6px;
  font-family:var(--mono);font-size:15px;font-weight:600;letter-spacing:.18em;color:var(--green);
}
.prose h2{
  margin:.1em 0 .55em;font-family:var(--mono);font-weight:700;
  font-size:clamp(24px,4.4vw,38px);line-height:1.1;letter-spacing:-.03em;color:var(--lime);
}
.prose h3{
  margin:1.4em 0 .5em;padding-left:10px;border-left:5px solid var(--green);
  font-family:var(--mono);font-size:clamp(20px,2.6vw,24px);line-height:1.26;color:var(--paper);
}
.prose p{margin:0 0 1.05em;}
.prose ul,.prose ol{margin:0 0 1.1em;padding-left:1.3em;}
.prose li{margin-bottom:.45em;}
.prose blockquote{margin:1.2em 0;padding:12px 16px;border-left:5px solid var(--lime);background:rgba(128,255,0,.08);}
.prose figure{margin:1.2em 0;max-width:100%;}
.prose img{border:3px solid var(--lime);height:auto;max-width:100%;}
.prose pre{max-width:100%;overflow-x:auto;padding:12px;border:2px solid var(--line);background:rgba(0,255,0,.06);font-family:var(--mono);font-size:16px;}
.prose code{font-family:var(--mono);font-size:.95em;}
.prose table{width:100%;max-width:100%;border-collapse:collapse;font-size:16px;}
.prose th,.prose td{border:2px solid var(--line);padding:8px;text-align:left;}
.prose strong{color:var(--lime);}
.prose hr{border:0;border-top:2px dashed var(--line);margin:1.7em 0;}
.prose a{color:var(--green);border-bottom:2px solid var(--line);}
.prose a:hover{background:var(--lime);color:var(--ink);}
.hit{outline:3px solid var(--green);outline-offset:8px;animation:hitb .6s 2;}
@keyframes hitb{50%{outline-color:transparent;}}
.find input.miss{animation:shake .3s 2;outline:2px solid var(--green);}
@keyframes shake{25%{transform:translateX(-4px);}75%{transform:translateX(4px);}}

/* 页脚 */
.foot{margin-top:52px;border-top:3px solid var(--lime);background:rgba(0,255,0,.05);padding:26px 16px 22px;max-width:100%;}
.foot__cols{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;}
.foot dl{margin:0;min-width:0;padding-left:12px;border-left:2px solid var(--line);}
.foot dt{font-family:var(--mono);font-size:15px;font-weight:600;letter-spacing:.18em;color:var(--green);}
.foot dd{margin:0;font-family:var(--mono);font-size:16px;overflow-wrap:break-word;}
.foot dd a{display:flex;align-items:center;min-height:42px;padding:4px 0;color:var(--paper);border-bottom:1px dashed var(--line);}
.foot dd a:hover{color:var(--lime);}
.foot__big{
  margin:26px 0 16px;text-align:center;
  font-family:var(--mono);font-weight:700;font-size:clamp(34px,12vw,124px);
  line-height:.86;letter-spacing:-.06em;color:var(--lime);
  overflow-wrap:anywhere;
}
.foot__bar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;border-top:2px dashed var(--line);padding-top:14px;}
.copy{margin:0;grid-column:2;text-align:center;font-family:var(--mono);font-size:16px;color:var(--mute);}
.top{
  grid-column:3;justify-self:end;
  border:2px solid var(--lime);background:transparent;color:var(--lime);
  font-family:var(--mono);font-weight:700;font-size:16px;padding:10px 14px;min-height:44px;cursor:pointer;
}
.top:hover{background:var(--lime);color:var(--ink);}

/* 进场 */
html.js .prose div{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease;}
html.js .prose div.in{opacity:1;transform:none;}

@media (min-width:640px){
  .foot__cols{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (min-width:760px){
  .hero{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:center;gap:28px;max-width:1180px;margin:0 auto;padding:44px 24px 64px;min-height:72vh;}
  .hero__art{order:0;min-height:44vh;}
  .hero__copy{order:1;}
}
@media (min-width:900px){
  .shell{grid-template-columns:236px minmax(0,1fr);gap:34px;align-items:start;padding:18px 24px 0;}
  .side{position:sticky;top:18px;}
  .side__nav ul{flex-direction:column;overflow:visible;gap:0;}
  .marq__in{font-size:16px;}
}
@media (max-width:400px){
  .brand{font-size:15px;padding:10px 4px;}
  .hero__desc{font-size:16px;}
  .prose{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .marq__in,.stk,.hit,.find input.miss{animation:none;}
  html.js .prose div{opacity:1;transform:none;transition:none;}
}

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