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

:root{
  --ink:#192617;
  --ink-deep:#0e1810;
  --neon:#87ff71;
  --sun:#ffce5c;
  --paper:#f2ffe8;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --shadow:0 20px 46px rgba(0,0,0,.45);
  --r:28px;
}

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

html{scroll-behavior:smooth}

body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  color:var(--paper);
  background-color:var(--ink);
  background-image:
    radial-gradient(rgba(135,255,113,.15) 1.2px,transparent 1.2px),
    radial-gradient(rgba(255,206,92,.10) 1.2px,transparent 1.2px);
  background-size:28px 28px,28px 28px;
  background-position:0 0,14px 14px;
  padding-bottom:calc(116px + env(safe-area-inset-bottom));
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;height:auto}
a{color:var(--sun)}

.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}

.skip{
  position:absolute;left:14px;top:-70px;z-index:120;
  background:var(--sun);color:var(--ink);font-family:var(--mono);font-weight:700;
  padding:10px 18px;border-radius:14px;text-decoration:none;min-height:44px;display:inline-flex;align-items:center;
  border:2px solid var(--ink-deep);
}
.skip:focus{top:12px}

/* 页头 */
.mast{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  max-width:1180px;margin:0 auto;padding:16px clamp(14px,4vw,28px) 8px;
}
.mast-brand{display:flex;align-items:center;gap:12px}
.mark{
  width:36px;height:36px;display:grid;place-items:center;
  background:var(--neon);color:var(--ink);font-family:var(--mono);font-weight:700;font-size:15px;
  border:2px solid var(--ink-deep);border-radius:12px;box-shadow:4px 4px 0 var(--sun);
  transform:rotate(-6deg);overflow:hidden;
}
.mark img{width:100%;height:100%;object-fit:cover}
.brand-name{font-family:var(--mono);font-weight:700;font-size:18px;letter-spacing:.01em}
.mast-dots{
  width:112px;height:14px;flex:0 0 auto;transform:rotate(-2deg);opacity:.85;
  background-image:radial-gradient(var(--sun) 2px,transparent 2px);background-size:12px 12px;
}

/* 底部固定导航 */
.dock{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:flex;align-items:center;gap:6px;
  padding:10px clamp(10px,3vw,26px) calc(10px + env(safe-area-inset-bottom));
  background:rgba(14,24,16,.95);
  backdrop-filter:blur(10px);
  border-top:2px dashed rgba(135,255,113,.55);
}
.dock-list{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:4px;min-width:0}
.dock-list.left{flex:1 1 auto;justify-content:flex-end}
.dock-list.right{flex:1 1 auto;justify-content:flex-start}
.dock-list li[hidden]{display:none}
.dock-list a{
  display:flex;align-items:center;gap:8px;min-height:44px;
  padding:8px 11px;border-radius:16px;text-decoration:none;
  font-family:var(--mono);font-size:16px;color:var(--paper);
  border:2px solid transparent;white-space:nowrap;
  transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.dock-list a:hover,.dock-list a:focus-visible{
  border-color:var(--neon);background:rgba(135,255,113,.12);color:var(--neon);
}
.dock-list a:focus-visible{outline:2px solid var(--sun);outline-offset:2px}
.ico{width:10px;height:10px;flex:0 0 auto;background:var(--neon);transition:transform .25s ease}
.dock-list li:nth-child(3n+1) .ico{background:var(--sun);clip-path:polygon(50% 0,100% 100%,0 100%)}
.dock-list li:nth-child(3n+2) .ico{border-radius:50%}
.dock-list li:nth-child(3n) .ico{clip-path:polygon(0 0,100% 0,100% 58%,50% 100%,0 58%)}
.dock-list a:hover .ico{transform:rotate(45deg)}

.dock-brand{flex:0 0 auto;padding:0 6px}
.dock-brand a{
  display:flex;align-items:center;gap:8px;min-height:44px;padding:8px 16px;
  font-family:var(--mono);font-weight:700;font-size:16px;color:var(--ink);text-decoration:none;
  background:var(--neon);border:2px solid var(--ink-deep);border-radius:16px;
  box-shadow:4px 4px 0 var(--sun);transform:rotate(-1.5deg);
}
.dock-mark{display:grid;place-items:center;width:20px;height:20px;overflow:hidden;border-radius:6px;background:var(--ink);color:var(--neon);font-size:12px}
.dock-mark img{width:100%;height:100%;object-fit:cover}

.dock-search{position:absolute;right:clamp(10px,3vw,26px);top:50%;transform:translateY(-50%)}
.dock-search input{
  width:172px;min-height:42px;padding:6px 12px;
  font-family:var(--mono);font-size:16px;color:var(--paper);
  background:rgba(135,255,113,.09);border:2px solid rgba(135,255,113,.45);border-radius:14px;
}
.dock-search input::placeholder{color:rgba(242,255,232,.55)}
.dock-search input:focus{outline:2px solid var(--sun);outline-offset:2px}

/* 主体骨架 */
main{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:clamp(22px,4vw,44px);
  max-width:1180px;margin:0 auto;
  padding:0 clamp(14px,4vw,28px) 44px;
}
main > section{order:1;min-width:0}
main > aside{order:2}

/* 侧栏 */
.side{
  background:rgba(255,206,92,.08);
  border:2px solid rgba(255,206,92,.55);
  border-radius:24px;padding:18px 16px;
  box-shadow:7px 7px 0 rgba(135,255,113,.2);
}
.side h2{margin:0;font-family:var(--mono);font-size:1.05rem;line-height:1.5;color:var(--sun);letter-spacing:.04em}
.side hr{border:0;border-top:2px dotted rgba(255,206,92,.55);margin:10px 0 14px}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.side-list a{
  display:flex;align-items:center;gap:10px;min-height:40px;padding:4px 8px;
  font-family:var(--mono);font-size:16px;color:var(--paper);text-decoration:none;
  border-radius:12px;
}
.side-list a::before{content:"";width:9px;height:9px;flex:0 0 auto;background:var(--neon);clip-path:polygon(50% 0,100% 100%,0 100%)}
.side-list a:hover,.side-list a:focus-visible{background:rgba(135,255,113,.14);color:var(--neon)}

/* 内容容器 */
section > div{
  position:relative;
  background:rgba(12,22,14,.72);
  border:2px dashed rgba(135,255,113,.3);
  border-radius:var(--r);
  padding:clamp(18px,3.4vw,34px);
  margin-bottom:clamp(20px,3.6vw,36px);
  box-shadow:var(--shadow);
  scroll-margin-top:22px;
  scroll-margin-bottom:132px;
}
section > div:last-child{margin-bottom:0}

.hero{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.58fr);
  gap:clamp(16px,3vw,36px);align-items:center;
  min-height:45vh;overflow:hidden;
  border:2px solid rgba(255,206,92,.4);
  border-radius:var(--r);
  background:rgba(14,24,16,.62);
  padding:clamp(20px,4vw,40px);
  margin-bottom:clamp(20px,4vw,36px);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(135,255,113,.28) 1.5px,transparent 1.5px);
  background-size:18px 18px;opacity:.45;
}
.hero-copy{position:relative;z-index:1}
h1{
  margin:0 0 14px;font-family:var(--mono);
  font-size:clamp(1.85rem,5.2vw,3rem);line-height:1.2;letter-spacing:-.02em;
  text-shadow:3px 3px 0 rgba(135,255,113,.28);
}
.hero-desc{margin:0;max-width:36ch;color:#dcf1d3}
.hero-art{position:relative;min-height:190px;display:grid;place-items:center}
.hero-media img{
  display:block;max-width:100%;border-radius:20px;border:2px solid var(--neon);
  box-shadow:8px 8px 0 rgba(255,206,92,.7);position:relative;z-index:2;
}
.stamp{position:absolute;z-index:1}
.stamp-a{width:118px;height:118px;top:-14px;right:4px;background:var(--neon);opacity:.8;clip-path:polygon(50% 0,100% 100%,0 100%);transform:rotate(8deg);mix-blend-mode:screen}
.stamp-b{width:92px;height:92px;bottom:-12px;left:0;border-radius:50%;background:var(--sun);opacity:.75}
.stamp-c{width:52px;height:52px;top:6px;left:12px;border:3px dotted var(--neon);transform:rotate(-14deg)}
.wiggle{position:absolute;bottom:-6px;right:-8px;z-index:3}

/* 正文排印 */
section h2{
  margin:0 0 4px;font-family:var(--mono);font-size:clamp(1.3rem,3vw,1.7rem);
  line-height:1.35;color:var(--neon);letter-spacing:-.01em;
}
section h3{margin:26px 0 4px;font-family:var(--mono);font-size:1.08rem;line-height:1.5;color:var(--sun)}
section hr{border:0;border-top:2px dotted rgba(255,206,92,.55);margin:10px 0 20px}
section p{margin:0 0 16px;max-width:70ch}
section ul,section ol{margin:0 0 18px;padding-left:1.3em}
section li{margin:.4em 0}
section li::marker{color:var(--neon)}
section strong{color:var(--neon)}
section em{color:var(--sun);font-style:normal;border-bottom:2px dotted rgba(255,206,92,.6)}
section a{color:var(--sun);text-decoration:underline dotted;text-underline-offset:3px}
section a:hover{color:var(--neon)}
section blockquote{
  margin:20px 0;padding:10px 20px;border-left:5px solid var(--neon);
  background:rgba(135,255,113,.08);border-radius:0 20px 20px 0;
}
section blockquote p:last-child{margin-bottom:0}
section code,section pre{
  font-family:var(--mono);font-size:15px;
  background:rgba(135,255,113,.12);border-radius:10px;
}
section code{padding:2px 6px;color:var(--neon)}
section pre{padding:14px 16px;overflow-x:auto}
section table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:16px}
section th,section td{border:2px dotted rgba(135,255,113,.35);padding:10px 12px;text-align:left}
section th{font-family:var(--mono);color:var(--neon)}

/* 页脚 */
.foot{max-width:1180px;margin:0 auto;padding:clamp(18px,4vw,34px) clamp(14px,4vw,28px) 0}
.foot-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:clamp(20px,4vw,34px);
  background:var(--sun);color:var(--ink);
  border:3px solid var(--ink-deep);border-radius:var(--r);
  box-shadow:10px 10px 0 rgba(135,255,113,.8);
  transform:rotate(-.8deg);
}
.cta-brand{margin:0;font-family:var(--mono);font-weight:700;font-size:clamp(1.6rem,5vw,2.6rem);letter-spacing:-.02em}
.cta-link{
  display:inline-flex;align-items:center;min-height:48px;padding:10px 22px;
  background:var(--ink);color:var(--neon);text-decoration:none;
  font-family:var(--mono);font-size:16px;border-radius:999px;border:2px solid var(--ink-deep);
}
.cta-link:hover{background:var(--ink-deep);color:var(--sun)}

.foot-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 18px;
  margin-top:24px;padding:16px 0 30px;
  border-top:2px dotted rgba(135,255,113,.4);
}
.foot-logo{font-family:var(--mono);font-weight:700;color:var(--neon)}
.foot-nav dl{display:flex;flex-wrap:wrap;align-items:center;gap:4px 12px;margin:0}
.foot-nav dt{font-family:var(--mono);font-size:16px;color:var(--sun)}
.foot-nav dd{margin:0}
.foot-nav a{
  display:inline-flex;align-items:center;min-height:40px;padding:4px 2px;
  color:var(--paper);text-decoration:underline dotted;text-underline-offset:4px;
  font-family:var(--mono);font-size:16px;
}
.foot-nav a:hover{color:var(--neon)}
.copy{margin:0;font-family:var(--mono);font-size:16px;color:rgba(242,255,232,.7)}

/* 入场 */
.has-js .reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .55s cubic-bezier(.2,.7,.3,1);transition-delay:calc(var(--i,0) * 70ms)}
.has-js .reveal.in{opacity:1;transform:none}

/* 响应式 */
@media (min-width:960px){
  main{grid-template-columns:250px minmax(0,1fr);align-items:start}
  main > aside{order:0;position:sticky;top:24px}
}

@media (max-width:900px){
  .dock{overflow-x:auto;overscroll-behavior-x:contain}
  .dock-list{flex:0 0 auto;justify-content:flex-start}
  .dock-search{position:static;transform:none;flex:0 0 auto}
  .dock-search input{width:132px}
}

@media (max-width:760px){
  body{font-size:16px}
  .hero{grid-template-columns:minmax(0,1fr);min-height:0}
  .hero-art{min-height:130px;margin-top:6px}
  .stamp-a{width:86px;height:86px;top:-8px;right:0}
  .stamp-b{width:66px;height:66px;bottom:-6px}
  .stamp-c{display:none}
  .wiggle{width:92px;height:32px;right:0}
  .mast-dots{width:70px}
  .foot-cta{transform:none}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .has-js .reveal{opacity:1;transform:none;transition:none}
  .dock-list a,.ico{transition:none}
}

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