@import url('https://fonts.googleapis.com/css2?family=Calistoga:ital@0;1&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --ink:#1f2617;
  --ink-2:#26301c;
  --ink-3:#31401f;
  --lime:#80ff00;
  --green:#00ff00;
  --paper:#f0ffdc;
  --muted:#b9cf9c;
  --radius:28px;
  --dock:64px;
}

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

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

body{
  margin:0;
  padding:0 0 calc(var(--dock) + 30px);
  background:var(--ink);
  color:var(--paper);
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

body::before{
  content:"";
  position:fixed;
  inset:-12%;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(38vw 38vw at 10% 6%, rgba(128,255,0,.20), transparent 70%),
    radial-gradient(28vw 28vw at 90% 38%, rgba(0,255,0,.14), transparent 70%),
    radial-gradient(44vw 44vw at 58% 98%, rgba(128,255,0,.12), transparent 72%);
  filter:saturate(150%);
  animation:drift 24s ease-in-out infinite alternate;
}

body.is-locked{overflow:hidden}

@keyframes drift{
  from{transform:translate3d(-2%,-1%,0) scale(1)}
  to{transform:translate3d(2%,2%,0) scale(1.06)}
}

@keyframes jitter{
  0%,100%{transform:rotate(-11deg) translateY(0)}
  50%{transform:rotate(-4deg) translateY(-6px)}
}

@keyframes marquee{
  from{transform:translateX(0)}
  to{transform:translateX(-50%)}
}

img{max-width:100%;height:auto;display:block}

a{color:var(--lime);text-decoration:none}

/* 角落图标 */
.mark{
  position:fixed;
  top:12px;
  left:12px;
  z-index:50;
  display:grid;
  place-items:center;
  width:48px;
  height:48px;
  border-radius:16px;
  border:2px solid var(--ink);
  background:var(--lime);
  color:var(--ink);
  font-family:"Calistoga","PingFang SC",serif;
  font-size:1.35rem;
  line-height:1;
  transform:rotate(-7deg);
  box-shadow:0 10px 24px rgba(0,0,0,.42);
}

.mark:hover{transform:rotate(4deg) scale(1.04)}

/* 顶部滚动条 */
.tape{
  position:sticky;
  top:0;
  z-index:40;
  overflow:hidden;
  background:var(--lime);
  color:var(--ink);
  border-bottom:2px solid var(--ink);
  padding-left:70px;
}

.tape__track{
  display:inline-flex;
  align-items:center;
  gap:14px;
  padding:7px 0;
  white-space:nowrap;
  font-family:"JetBrains Mono","PingFang SC",monospace;
  font-size:.82rem;
  letter-spacing:.14em;
  animation:marquee 30s linear infinite;
  will-change:transform;
}

.tape__sep{opacity:.55}

/* 主体 */
.page{
  position:relative;
  z-index:1;
}

.sheet{
  position:relative;
  z-index:1;
}

/* 头图区 */
.hero{
  position:relative;
  min-height:45vh;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:54px 20px 46px;
  isolation:isolate;
}

.hero__ghost{
  position:absolute;
  top:50%;
  left:50%;
  z-index:-1;
  transform:translate(-50%,-50%) rotate(-6deg);
  font-family:"Calistoga",serif;
  font-size:clamp(120px,44vw,330px);
  line-height:.78;
  color:transparent;
  -webkit-text-stroke:2px rgba(128,255,0,.30);
  opacity:.9;
  pointer-events:none;
  mix-blend-mode:screen;
}

.hero__title{
  position:relative;
  z-index:2;
  margin:0;
  font-family:"Calistoga","PingFang SC",serif;
  font-weight:400;
  font-size:clamp(2.35rem,12vw,5.4rem);
  line-height:.98;
  letter-spacing:-.02em;
  overflow-wrap:anywhere;
  text-shadow:0 12px 40px rgba(0,0,0,.55);
}

.hero__title > span{
  display:inline-block;
  transform:rotate(-1.6deg);
  background-image:linear-gradient(transparent 66%, rgba(128,255,0,.55) 66%);
  padding:0 .06em;
}

.hero__lead{
  position:relative;
  z-index:2;
  margin:20px 0 0;
  max-width:38ch;
  font-size:1rem;
  line-height:1.75;
  color:var(--muted);
}

.sticker{
  position:absolute;
  display:grid;
  place-items:center;
  border-radius:999px;
  border:2px solid var(--ink);
  color:var(--ink);
  font-family:"Calistoga",serif;
  font-size:1.25rem;
  line-height:1;
  background:var(--lime);
  box-shadow:0 10px 22px rgba(0,0,0,.4);
  animation:jitter 7s ease-in-out infinite;
}

.sticker--a{
  top:8%;
  left:5%;
  width:58px;
  height:58px;
  transform:rotate(-12deg);
}

.sticker--b{
  bottom:9%;
  right:6%;
  width:50px;
  height:50px;
  background:var(--green);
  transform:rotate(14deg);
  animation-delay:-3s;
}

/* 正文卡片 */
.prose{
  position:relative;
  z-index:1;
  max-width:760px;
  margin:0 auto;
  padding:6px 18px 44px;
}

.prose > article{
  position:relative;
  margin:0 0 18px;
  padding:26px 20px;
  border:1px solid rgba(128,255,0,.16);
  border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(49,64,31,.92), rgba(38,48,28,.96));
  box-shadow:0 22px 46px -20px rgba(0,0,0,.85);
  scroll-margin-top:96px;
}

.prose > article:nth-child(even){
  background:linear-gradient(180deg, rgba(44,58,29,.92), rgba(32,41,23,.96));
}

.prose h2,
.prose h3{
  font-family:"Calistoga","PingFang SC",serif;
  font-weight:400;
  line-height:1.18;
  letter-spacing:-.01em;
  margin:.15em 0 .55em;
}

.prose h2{font-size:clamp(1.5rem,5.8vw,2.1rem)}
.prose h3{font-size:clamp(1.2rem,4.6vw,1.5rem)}

.prose h2 > span{
  display:inline-block;
  padding:0 .1em;
  background-image:linear-gradient(transparent 62%, rgba(128,255,0,.42) 62%);
}

.prose h3 > span{
  display:inline-block;
  color:var(--lime);
}

.prose p{margin:0 0 1.05em;color:#e2f0cc}
.prose p:last-child{margin-bottom:0}

.prose a{
  color:var(--green);
  border-bottom:2px solid rgba(0,255,0,.45);
  padding-bottom:.06em;
}

.prose a:hover{
  background:var(--lime);
  color:var(--ink);
  border-bottom-color:var(--lime);
}

.prose strong{color:var(--lime)}

.prose ul,.prose ol{margin:0 0 1.05em;padding-left:1.25em}
.prose li{margin:.34em 0}
.prose li::marker{color:var(--lime)}

.prose blockquote{
  margin:20px 0;
  padding:14px 18px;
  border-left:4px solid var(--lime);
  border-radius:0 18px 18px 0;
  background:rgba(128,255,0,.10);
  color:var(--paper);
}

.prose img{
  margin:18px 0;
  border-radius:20px;
  border:2px solid rgba(128,255,0,.22);
}

.prose code{
  font-family:"JetBrains Mono",monospace;
  font-size:.9em;
  padding:2px 6px;
  border-radius:6px;
  background:rgba(0,0,0,.4);
}

.prose hr{
  border:0;
  border-top:2px dashed rgba(128,255,0,.3);
  margin:22px 0;
}

/* 页脚 */
.foot{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:14px 18px;
  margin-top:34px;
  padding:32px 18px 20px;
  border-top:2px solid var(--lime);
}

.foot__brand{
  flex:1 1 100%;
  margin:0;
  font-family:"Calistoga","PingFang SC",serif;
  font-size:clamp(2rem,11.5vw,4.6rem);
  line-height:.92;
  letter-spacing:-.03em;
  color:var(--lime);
  overflow-wrap:anywhere;
  text-shadow:5px 5px 0 rgba(0,255,0,.14);
}

.foot__meta{
  margin-left:auto;
  color:var(--muted);
  font-size:.95rem;
}

.foot__meta a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 8px;
  color:var(--lime);
  font-weight:600;
  border-bottom:2px solid var(--lime);
}

/* 底部固定条 */
.dock{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:70;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  height:var(--dock);
  padding:0 12px;
  background:rgba(23,29,17,.95);
  border-top:2px solid var(--lime);
  backdrop-filter:blur(8px);
}

.dock__btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:46px;
  padding:0 18px;
  border:0;
  border-radius:999px;
  background:var(--lime);
  color:var(--ink);
  font:inherit;
  font-weight:700;
  cursor:pointer;
  box-shadow:0 8px 22px rgba(128,255,0,.28);
}

.dock__btn:active{transform:translateY(1px)}

.dock__bars{display:grid;gap:5px}
.dock__bars i{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}

.dock__txt{font-size:1rem}

.dock__top{
  display:inline-flex;
  align-items:center;
  min-height:46px;
  padding:0 14px;
  border:2px solid rgba(128,255,0,.5);
  border-radius:999px;
  color:var(--paper);
  font-size:.95rem;
}

.dock__top:hover{background:rgba(128,255,0,.14)}

/* 全屏菜单 */
.drawer{
  position:fixed;
  inset:0;
  z-index:60;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:88px 22px 96px;
  overflow-y:auto;
  background:var(--lime);
  color:var(--ink);
  transform:translateY(-101%);
  transition:transform .5s cubic-bezier(.62,.02,.2,1);
}

.drawer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:repeating-linear-gradient(135deg, rgba(31,38,23,.07) 0 12px, transparent 12px 26px);
  mix-blend-mode:multiply;
}

.drawer.is-open{transform:translateY(0)}

.drawer__title{
  margin:0 0 16px;
  font-family:"Calistoga","PingFang SC",serif;
  font-weight:400;
  font-size:clamp(1.5rem,6.6vw,2rem);
  line-height:1.15;
  color:var(--ink);
}

.drawer__title > span{
  display:inline-block;
  border-bottom:3px solid var(--ink);
  padding-bottom:2px;
}

.drawer__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:2px;
}

.drawer__link{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:56px;
  padding:6px 4px;
  color:var(--ink);
  font-family:"Calistoga","PingFang SC",serif;
  font-size:clamp(1.35rem,7vw,2rem);
  line-height:1.2;
  border-bottom:2px solid rgba(31,38,23,.2);
  transition:transform .18s ease;
}

.drawer__link:hover,
.drawer__link:focus-visible{
  transform:translateX(6px);
  background:rgba(31,38,23,.08);
}

.drawer__num{
  font-family:"JetBrains Mono",monospace;
  font-size:.78rem;
  letter-spacing:.1em;
  padding:3px 8px;
  border-radius:999px;
  background:var(--ink);
  color:var(--lime);
}

/* 滚动出现 */
.reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s ease, transform .6s ease;
}

.reveal.in{
  opacity:1;
  transform:none;
}

@media (min-width:880px){
  body{font-size:18px}
  .mark{width:56px;height:56px;font-size:1.5rem;top:14px;left:14px}
  .tape{padding-left:86px}
  .hero{padding:74px 32px 62px}
  .hero__lead{font-size:1.05rem}
  .prose{max-width:840px;padding:6px 24px 48px}
  .prose > article{padding:34px 32px;margin-bottom:24px}
  .foot{padding:46px 26px 24px}
  .drawer{padding:96px 48px 110px}
  .drawer__list{grid-template-columns:1fr 1fr;gap:0 44px}
  .dock{
    left:50%;
    right:auto;
    transform:translateX(-50%);
    width:min(560px,90vw);
    bottom:16px;
    height:58px;
    border:2px solid var(--lime);
    border-radius:999px;
    padding:0 10px;
  }
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1 !important;transform:none !important}
}

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