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

:root{
  --lime:#80ff00;
  --neon:#00ff00;
  --ink:#1f2617;
  --ink-soft:#38472c;
  --paper:#f2f8e4;
  --white:#ffffff;
  --hard:5px 5px 0 var(--ink);
  --soft:0 12px 26px rgba(31,38,23,.22), 0 3px 0 rgba(31,38,23,.12);
  --dock:84px;
  --pad:20px;
  --rub:'Rubik','Nunito Sans','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --sans:'Nunito Sans','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.7;
  color:var(--ink);
  background:var(--paper);
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:radial-gradient(rgba(31,38,23,.9) 1px,transparent 1px);
  background-size:16px 16px;opacity:.11;
}
body>*{position:relative;z-index:1}
img{max-width:100%;height:auto;display:block}
a:focus-visible,button:focus-visible{outline:3px solid var(--neon);outline-offset:3px}

/* 底部胶囊驾驶舱 */
.dock{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:flex;align-items:center;gap:10px;
  padding:10px var(--pad) calc(10px + env(safe-area-inset-bottom));
  background:var(--ink);
  border-top:3px solid var(--neon);
  box-shadow:0 -5px 0 rgba(128,255,0,.4);
}
.dock .mark{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  min-width:48px;min-height:48px;padding:4px;
  background:var(--lime);color:var(--ink);text-decoration:none;
  border:2px solid var(--neon);
  transform:rotate(-5deg);
  font-family:var(--rub);font-weight:800;font-size:15px;line-height:1;
  overflow:hidden;
}
.dock .mark img{max-height:38px;width:auto;object-fit:contain}
.dock nav{flex:1 1 auto;min-width:0;overflow-x:auto;overflow-y:hidden;scrollbar-width:none}
.dock nav::-webkit-scrollbar{display:none}
.dock nav p{display:flex;gap:8px;margin:0;padding:2px 4px 5px;width:max-content}
.dock nav a{
  display:inline-flex;align-items:center;min-height:44px;padding:0 15px;
  border-radius:999px;border:2px solid var(--lime);
  background:var(--lime);color:var(--ink);
  font-family:var(--rub);font-size:16px;font-weight:700;line-height:1;
  text-decoration:none;white-space:nowrap;
  transition:transform .16s ease,background .16s ease,color .16s ease;
}
.dock nav a:nth-child(3n+2){background:var(--neon);border-color:var(--neon)}
.dock nav a:nth-child(3n){background:transparent;color:var(--lime)}
.dock nav a:hover,.dock nav a:focus-visible{
  background:var(--white);color:var(--ink);border-color:var(--ink);
  transform:translateY(-3px) rotate(-2deg);
}

/* 主区 */
main{max-width:1180px;margin:0 auto;padding:0 var(--pad)}

.hero{
  position:relative;width:100vw;margin-left:calc(50% - 50vw);
  min-height:100svh;
  display:grid;gap:26px;align-items:center;
  grid-template-columns:1fr;
  grid-template-areas:"copy" "art" "rail";
  padding:92px var(--pad) 72px;
  background:var(--ink);color:var(--paper);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:radial-gradient(var(--lime) 1.4px,transparent 1.4px);
  background-size:22px 22px;opacity:.26;mix-blend-mode:screen;
}
.hero>*{position:relative;z-index:2}
.hero h1{
  grid-area:copy;
  margin:0 0 16px;
  font-family:var(--rub);font-weight:800;font-size:clamp(2.1rem,8vw,4.5rem);
  line-height:.96;letter-spacing:-.02em;text-align:right;
  text-shadow:6px 6px 0 rgba(128,255,0,.42);
}
.hero .lead{
  margin:0 0 4px;margin-left:auto;max-width:46ch;
  font-size:17px;line-height:1.6;color:#dcf3c2;text-align:right;
}

.hero-art{
  grid-area:art;margin:0;position:relative;
  border:5px solid var(--lime);
  background:var(--ink-soft);
  box-shadow:12px 12px 0 rgba(0,255,0,.32);
  transform:rotate(-1.6deg) translateY(var(--par,0px));
  filter:saturate(150%);
}
.hero-art img{width:100%;height:auto}
.hero-blank{
  aspect-ratio:4/3;
  background:repeating-linear-gradient(45deg,var(--ink-soft) 0 16px,#26301c 16px 32px);
}

.rail{
  grid-area:rail;
  background:var(--lime);color:var(--ink);
  border:3px solid var(--neon);
  padding:16px 18px;
  box-shadow:8px 8px 0 rgba(0,0,0,.5);
  transform:rotate(1.2deg);
  text-align:right;
}
.rail h2{
  display:block;margin:0;padding:0;background:none;box-shadow:none;
  font-family:var(--rub);font-size:18px;font-weight:800;letter-spacing:.06em;
}
.rail .subtitle{margin:2px 0 10px;padding:0;font-size:16px;font-weight:600;opacity:.72}
.rail ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end}
.rail a{
  display:inline-flex;align-items:center;min-height:40px;padding:0 12px;
  background:var(--white);color:var(--ink);border:2px solid var(--ink);border-radius:999px;
  font-size:16px;font-weight:700;text-decoration:none;
}
.rail a:hover{background:var(--ink);color:var(--lime)}

.sticker{position:absolute;z-index:1;display:block;pointer-events:none;mix-blend-mode:screen}
.s1{width:88px;height:88px;background:var(--neon);top:13%;right:5%;opacity:.85;transform:rotate(17deg);animation:jitter 4s ease-in-out infinite}
.s2{width:130px;height:32px;background:var(--lime);bottom:9%;left:4%;transform:rotate(-9deg);animation:jitter 5.4s ease-in-out infinite}
.s3{width:46px;height:46px;border:6px solid var(--neon);border-radius:50%;top:7%;left:10%;animation:jitter 6.6s ease-in-out infinite}
@keyframes jitter{0%,100%{translate:0 0}50%{translate:5px -7px}}

.marquee{
  width:100vw;margin-left:calc(50% - 50vw);
  overflow:hidden;background:var(--neon);
  border-top:3px solid var(--ink);border-bottom:3px solid var(--ink);
  padding:9px 0;
}
.marquee-track{display:flex;width:max-content;animation:slide 26s linear infinite}
.marquee-track span{
  font-family:var(--rub);font-weight:800;font-size:18px;letter-spacing:.09em;
  color:var(--ink);padding:0 20px;white-space:nowrap;
}
.marquee-track span::after{content:"★";margin-left:20px;font-size:14px;vertical-align:2px}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* 正文 */
main > section{padding:64px 0;border-top:2px dashed rgba(31,38,23,.3);scroll-margin-top:24px}
main h2{
  display:inline-block;margin:0;padding:2px 12px 5px;
  font-family:var(--rub);font-weight:800;
  font-size:clamp(1.5rem,3.6vw,2.3rem);line-height:1.16;letter-spacing:-.01em;
  background:var(--lime);box-shadow:var(--hard);
}
main h3{font-family:var(--rub);font-size:1.2rem;margin:30px 0 8px;letter-spacing:-.01em}
main h2+p,main h2+p.subtitle{margin:16px 0 18px;font-size:16px;font-weight:600;color:var(--ink-soft)}
main p{margin:0 0 16px}
main ul,main ol{padding-left:1.2em;margin:0 0 18px}
main li{margin:0 0 8px}
main a{color:#2f4a12;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
main a:hover{background:var(--neon)}
main img{border:3px solid var(--ink);box-shadow:var(--soft)}
main figure{margin:24px 0}
main figcaption{font-size:16px;color:var(--ink-soft);padding-top:8px}
main blockquote{
  margin:26px 0;padding:15px 18px;background:#e6f6c9;
  border-left:7px solid var(--neon);font-style:normal;
}
main blockquote p:last-child{margin:0}
main table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:16px}
main th,main td{border:2px solid var(--ink);padding:9px 11px;text-align:left}
main th{background:var(--lime);font-family:var(--rub)}
main code{font-size:15px;background:#e6f6c9;padding:1px 5px;border:1px solid var(--ink)}
main pre{overflow-x:auto;background:var(--ink);color:var(--lime);padding:14px;border:3px solid var(--ink)}
main pre code{background:none;border:0;color:inherit}

/* 页脚 */
.foot{
  position:relative;z-index:2;
  background:var(--ink);color:var(--paper);
  border-top:5px solid var(--neon);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px;
  padding:28px var(--pad) calc(var(--dock) + 30px + env(safe-area-inset-bottom));
}
.foot nav{order:1;flex:1 1 250px;display:flex;flex-wrap:wrap;gap:2px 4px}
.foot nav a{
  display:inline-flex;align-items:center;min-height:44px;padding:0 10px;
  color:var(--lime);font-size:16px;font-weight:600;text-decoration:none;
}
.foot nav a:hover,.foot nav a:focus-visible{background:var(--lime);color:var(--ink)}
.foot-brand{
  order:2;margin:0;font-family:var(--rub);font-weight:800;
  font-size:clamp(1.7rem,7vw,3.4rem);line-height:.94;letter-spacing:-.03em;
  color:var(--neon);text-shadow:4px 4px 0 rgba(128,255,0,.28);
}
.foot-copy{order:3;margin:0;font-size:16px;color:#cfe3b5}

/* 滚动揭示 */
.reveal{opacity:0;transform:translateY(28px)}
.reveal.in{
  opacity:1;transform:none;
  transition:opacity .6s ease var(--d,0ms),transform .62s cubic-bezier(.2,.8,.2,1) var(--d,0ms);
}

@media (min-width:860px){
  .hero{
    grid-template-columns:1.05fr .95fr;
    grid-template-areas:"art copy" "art rail";
    grid-template-rows:auto auto;
    align-content:center;
    column-gap:46px;row-gap:24px;
    padding:110px var(--pad) 84px;
  }
  .rail{justify-self:end;max-width:420px}
  .foot-brand{margin-left:auto}
}

@media (max-width:420px){
  :root{--pad:16px}
  .hero h1{font-size:clamp(1.95rem,10.5vw,2.6rem)}
  .foot nav{flex-basis:100%}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .sticker,.marquee-track{animation:none}
  .reveal{opacity:1;transform:none;transition:none}
  .hero-art{transform:none}
}

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