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

:root{
  --neon:#80ff00;
  --lime:#00ff00;
  --ink:#1f2617;
  --paper:#eef3e3;
  --white:#ffffff;
  --pad:clamp(16px,4vw,44px);
  --maxw:1180px;
}

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

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

body{
  margin:0;
  font-family:'Archivo',system-ui,-apple-system,'PingFang SC','Noto Sans SC',sans-serif;
  font-size:17px;
  line-height:1.7;
  color:var(--ink);
  background-color:var(--paper);
  background-image:radial-gradient(rgba(31,38,23,.09) 1px,transparent 1px);
  background-size:4px 4px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3{
  font-family:'Space Grotesk','Archivo',system-ui,sans-serif;
  font-weight:700;
  line-height:.98;
  letter-spacing:-.02em;
  margin:0;
}

p{margin:0 0 1em}
a{color:var(--ink)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
img{max-width:100%;height:auto;display:block}
::selection{background:var(--neon);color:var(--ink)}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 顶部滚动条 ---------- */
.tape{background:var(--neon);border-bottom:3px solid var(--ink);overflow:hidden}
.tape-track{display:flex;width:max-content;animation:tape 26s linear infinite}
.tape-track span{
  display:block;
  padding:7px 0 7px 2rem;
  white-space:nowrap;
  font-family:'Space Grotesk',sans-serif;
  font-weight:700;
  font-size:12px;
  letter-spacing:.28em;
}
@keyframes tape{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- 页头 ---------- */
.masthead{
  position:relative;
  z-index:20;
  background:var(--paper);
  border-bottom:3px solid var(--ink);
  padding:8px var(--pad) 0;
}
.brandline{display:flex;align-items:center;gap:14px;padding-bottom:8px;border-bottom:2px dashed var(--ink)}
.logo{display:inline-flex;align-items:center;gap:10px;min-height:44px;text-decoration:none;color:var(--ink)}
.mark{
  width:44px;height:44px;flex:0 0 44px;
  display:grid;place-items:center;
  background:var(--ink);color:var(--neon);
  font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:22px;
  transform:rotate(-6deg);
}
.mark img{width:100%;height:100%;object-fit:cover}
.brandname{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:clamp(1.05rem,3.6vw,1.5rem);letter-spacing:-.02em}
.stamp{
  margin:0 0 0 auto;
  background:var(--lime);
  border:2px solid var(--ink);
  padding:2px 8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;
  transform:rotate(3deg);
}

.menu{padding:0}
.menu ol{
  list-style:none;margin:0;padding:0;
  display:flex;align-items:center;gap:2px;
  overflow-x:auto;scrollbar-width:none;
}
.menu ol::-webkit-scrollbar{display:none}
.menu li{flex:0 0 auto}
.menu a{
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 11px;
  font-family:'Space Grotesk',sans-serif;
  font-size:15px;font-weight:600;
  text-decoration:none;white-space:nowrap;
  border-bottom:3px solid transparent;
}
.menu a:hover{background:var(--neon);border-bottom-color:var(--ink)}
.menu .cta a{margin:6px 0 6px 8px;padding:0 14px;background:var(--ink);color:var(--neon);border:2px solid var(--ink);transform:rotate(-2deg)}
.menu .cta a:hover{background:var(--lime);color:var(--ink)}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  display:grid;
  align-content:end;
  min-height:100vh;
  min-height:100svh;
  padding:calc(var(--pad) + 26px) var(--pad) clamp(46px,7vw,84px);
  border-bottom:3px solid var(--ink);
  overflow:hidden;
  isolation:isolate;
}
.hero::before{
  content:"";
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(185deg,rgba(238,243,227,.5),rgba(238,243,227,.9) 55%,#eef3e3 92%);
}
.hero-fig{
  position:absolute;inset:0;z-index:-2;margin:0;
  background:linear-gradient(145deg,var(--neon),var(--lime) 45%,var(--ink));
}
.hero-img{width:100%;height:100%;object-fit:cover;filter:saturate(155%) contrast(1.06);mix-blend-mode:multiply}
.hero-copy{position:relative;max-width:min(100%,860px)}
.kicker{
  display:inline-block;
  background:var(--ink);color:var(--neon);
  padding:4px 10px;
  font-family:'Space Grotesk',sans-serif;
  font-size:12px;font-weight:700;letter-spacing:.24em;
  transform:rotate(-2deg);
}
.hero h1{
  margin:.34em 0 .3em;
  font-size:clamp(2.25rem,8.2vw,5.4rem);
  line-height:.94;
  text-shadow:3px 3px 0 rgba(238,243,227,.95);
}
.lead{
  max-width:36ch;
  margin:0;
  padding:10px 14px;
  font-size:clamp(1rem,2.2vw,1.14rem);
  background:rgba(238,243,227,.88);
  border-left:6px solid var(--ink);
}
.stick{
  position:absolute;
  top:clamp(64px,13vw,120px);
  right:clamp(14px,5vw,56px);
  margin:0;
  padding:6px 10px;
  background:var(--lime);
  border:3px solid var(--ink);
  box-shadow:5px 5px 0 var(--ink);
  font-family:'Space Grotesk',sans-serif;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  transform:rotate(8deg);
  animation:jitter 4s ease-in-out infinite;
}
@keyframes jitter{0%,100%{transform:rotate(8deg)}50%{transform:rotate(4deg) translateY(-4px)}}
.slash{
  position:absolute;left:-6%;right:-6%;bottom:0;height:22px;
  background:var(--neon);border-top:3px solid var(--ink);
  transform:skewY(-2.4deg);transform-origin:100% 100%;
}

/* ---------- 正文区 ---------- */
.board{
  display:flex;flex-wrap:wrap;
  gap:clamp(20px,4vw,48px);
  max-width:var(--maxw);
  margin:0 auto;
  padding:clamp(30px,6vw,64px) var(--pad);
}
.prose{flex:1 1 600px;min-width:0}

.rail{
  flex:1 1 240px;
  max-width:340px;
  margin-top:8px;
  align-self:flex-start;
  position:relative;
  border:3px solid var(--ink);
  background:var(--white);
  padding:16px 16px 20px;
  box-shadow:7px 7px 0 var(--ink);
  transform:rotate(-1.4deg);
}
.rail small{
  display:inline-block;
  background:var(--ink);color:var(--neon);
  padding:3px 8px;
  font-family:'Space Grotesk',sans-serif;
  font-size:12px;font-weight:700;letter-spacing:.2em;
  transform:rotate(-2deg);
}
.rail h2{
  font-size:1.4rem;
  margin:.4em 0 .7em;
  padding-bottom:.32em;
  border-bottom:3px solid var(--ink);
}
.rail ol{list-style:none;counter-reset:rail;margin:0;padding:0}
.rail li{counter-increment:rail;border-top:1px dashed rgba(31,38,23,.4)}
.rail li:first-child{border-top:0}
.rail a{
  display:flex;align-items:center;gap:10px;
  min-height:44px;padding:6px 2px;
  font-family:'Space Grotesk',sans-serif;
  font-size:15px;font-weight:600;
  text-decoration:none;
}
.rail a::before{
  content:counter(rail,decimal-leading-zero);
  font-size:12px;
  background:var(--neon);
  padding:1px 5px;
}
.rail a:hover{background:var(--neon)}

.prose > div{
  position:relative;
  border:3px solid var(--ink);
  background:var(--white);
  padding:clamp(18px,3.4vw,32px);
  margin:0 0 clamp(24px,4.4vw,40px);
  box-shadow:7px 7px 0 var(--ink);
  scroll-margin-top:130px;
}
.prose > div:nth-child(odd){transform:rotate(-.4deg)}
.prose > div:nth-child(even){transform:rotate(.35deg)}
.prose > div::after{content:"";display:block;height:6px;background:var(--neon);margin-top:18px}

.prose h2{
  font-size:clamp(1.45rem,4.4vw,2.15rem);
  margin:.1em 0 .55em;
  padding-bottom:.24em;
  border-bottom:3px solid var(--ink);
}
.prose h3{font-size:clamp(1.15rem,3vw,1.5rem);margin:1.3em 0 .5em}
.prose small{
  display:inline-block;
  margin-bottom:8px;
  padding:3px 8px;
  background:var(--ink);color:var(--neon);
  font-family:'Space Grotesk',sans-serif;
  font-size:12px;font-weight:700;letter-spacing:.2em;
  transform:rotate(-1.5deg);
}
.prose p,.prose li{font-size:clamp(1rem,1.4vw,1.08rem)}
.prose ul,.prose ol{padding-left:1.35em}
.prose li{margin:.35em 0}
.prose a{font-weight:600;text-decoration-thickness:2px;text-underline-offset:3px}
.prose a:hover{background:var(--neon)}
.prose blockquote{
  margin:1.2em 0;padding:12px 16px;
  background:var(--neon);
  border-left:6px solid var(--ink);
  font-weight:600;
}
.prose blockquote p:last-child{margin:0}
.prose figure{margin:1.2em 0}
.prose img,.prose figure img{border:3px solid var(--ink)}
.prose figcaption{font-size:13px;letter-spacing:.06em;margin-top:6px}

/* ---------- 页脚 ---------- */
.foot{
  margin-top:clamp(30px,6vw,70px);
  background:var(--ink);
  color:var(--paper);
  border-top:8px solid var(--neon);
  padding:clamp(30px,5vw,56px) var(--pad) 18px;
}
.foot-top{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(18px,3vw,34px);
  max-width:var(--maxw);
  margin:0 auto;
}
.fcol{min-width:0}
.fbrand .logo{color:var(--paper)}
.fbrand .mark{background:var(--neon);color:var(--ink)}
.faddr{font-style:normal;margin-top:10px;font-size:15px;letter-spacing:.04em;color:var(--neon)}
.foot h3{
  display:inline-block;
  margin-bottom:12px;padding-bottom:4px;
  font-size:14px;letter-spacing:.18em;
  color:var(--neon);
  border-bottom:2px solid var(--neon);
}
.foot ul{list-style:none;margin:0;padding:0}
.foot li a{
  display:flex;align-items:center;
  min-height:44px;
  font-size:15px;
  color:var(--paper);text-decoration:none;
  border-bottom:1px dashed rgba(238,243,227,.28);
}
.foot li a:hover{background:var(--neon);color:var(--ink)}
.sub{display:flex;flex-direction:column;gap:10px}
.sub input{
  min-height:44px;padding:0 12px;
  font:inherit;font-size:15px;
  color:var(--paper);
  background:rgba(238,243,227,.08);
  border:2px solid var(--neon);
}
.sub button{
  min-height:44px;
  border:2px solid var(--ink);
  background:var(--neon);color:var(--ink);
  font:inherit;font-family:'Space Grotesk',sans-serif;
  font-weight:700;letter-spacing:.16em;
  cursor:pointer;
}
.sub button:hover{background:var(--lime)}
.foot-bar{
  max-width:var(--maxw);
  margin:26px auto 0;padding-top:12px;
  border-top:1px solid rgba(238,243,227,.25);
  font-size:13px;letter-spacing:.1em;
}
.foot-bar p{margin:0}

/* ---------- 入场 ---------- */
.rv{opacity:0;translate:0 20px;transition:opacity .5s ease,translate .5s ease;transition-delay:var(--d,0ms)}
.rv.in{opacity:1;translate:0 0}

@media(min-width:900px){
  .rail{flex:0 0 300px;max-width:300px;position:sticky;top:150px}
}
@media(min-width:960px){
  .masthead{position:sticky;top:0}
  .menu ol{flex-wrap:wrap;overflow:visible}
}
@media(max-width:860px){
  .foot-top{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .foot-top{grid-template-columns:1fr}
  .fbrand{grid-column:1/-1}
  .prose > div{box-shadow:5px 5px 0 var(--ink)}
  .stick{font-size:12px;top:62px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;translate:none;transition:none}
  .tape-track{animation:none}
  .stick{animation:none}
}

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