:root{
  --mint:#87ff71;
  --cyan:#01cdfe;
  --ink:#192617;
  --pink:#ff71ce;
  --violet:#b967ff;
  --txt:#e2ffdb;
  --dim:#a8c9a6;
  --line:rgba(135,255,113,.26);
  --edge:rgba(1,205,254,.55);
  --r:18px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  overflow-x:hidden;
  font-family:"Baloo 2","Comic Neue",system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.78;
  color:var(--txt);
  background:
    radial-gradient(120% 52% at 50% -6%,rgba(255,113,206,.30),transparent 62%),
    radial-gradient(90% 46% at 88% 104%,rgba(1,205,254,.20),transparent 60%),
    var(--ink);
}
body::before{
  content:"";position:fixed;left:-30%;right:-30%;bottom:-14%;height:56vh;z-index:0;pointer-events:none;
  background:
    repeating-linear-gradient(90deg,rgba(1,205,254,.28) 0 1px,transparent 1px 68px),
    repeating-linear-gradient(0deg,rgba(135,255,113,.22) 0 1px,transparent 1px 68px);
  transform:perspective(320px) rotateX(62deg);
  transform-origin:bottom center;
  opacity:.5;
}
body::after{
  content:"";position:fixed;inset:0;z-index:2;pointer-events:none;opacity:.32;
  background:repeating-linear-gradient(180deg,rgba(0,0,0,.34) 0 1px,transparent 1px 3px);
}
body>header,body>main,body>footer{position:relative;z-index:1}
a{color:var(--cyan);text-decoration:none;transition:color .18s}
a:hover{color:var(--mint)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{line-height:1.22;font-weight:700;margin:0 0 .5em}
article{scroll-margin-top:104px}

/* 顶栏 */
.top{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:center;gap:14px;
  padding:10px clamp(14px,3vw,32px);
  background:rgba(25,38,23,.9);
  backdrop-filter:blur(8px);
  border-bottom:2px solid rgba(1,205,254,.35);
}
.top.stuck{border-bottom-color:var(--cyan);background:rgba(19,30,18,.97)}
.brand{
  display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;
  color:var(--txt);font-weight:700;padding:6px 0;min-height:44px;
}
.brand:hover{color:var(--mint)}
.brand-txt{font-size:1.02rem;letter-spacing:.02em}
.logo{width:38px;height:38px;border-radius:50%;border:2px solid var(--cyan)}
.logo-mark{
  width:38px;height:38px;display:grid;place-items:center;border-radius:50%;
  border:2px solid var(--cyan);color:var(--mint);
  background:rgba(1,205,254,.12);font-size:1rem;font-weight:700;
}
.menu{flex:1 1 auto;min-width:0}
.menu ol{
  list-style:none;display:flex;gap:4px;margin:0;padding:0;
  overflow-x:auto;scrollbar-width:none;
}
.menu ol::-webkit-scrollbar{display:none}
.menu li{position:relative;flex:0 0 auto}
.menu a{
  display:flex;align-items:center;min-height:44px;padding:8px 12px;
  border-radius:999px;border:1px solid transparent;
  color:var(--txt);font-size:1rem;white-space:nowrap;transition:.18s;
}
.menu a:hover,.menu a:focus-visible{color:var(--ink);background:var(--mint);border-color:var(--mint)}
.sub{
  position:absolute;left:0;top:calc(100% + 6px);min-width:190px;padding:8px;
  background:rgba(16,26,15,.98);
  border:2px solid var(--edge);border-radius:14px;
  display:none;z-index:40;
}
.sub ol{display:block;overflow:visible}
.sub li{margin:0 0 2px}
.sub a{min-height:42px}
.has-sub:hover .sub,.has-sub:focus-within .sub{display:block}

/* 首屏 */
.hero{
  position:relative;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.78fr);
  align-items:center;gap:clamp(18px,4vw,48px);
  min-height:70vh;
  padding:clamp(38px,7vw,78px) clamp(18px,4vw,56px) clamp(54px,8vw,88px);
  border-radius:0 0 50% 50%/0 0 92px 92px;
  overflow:hidden;
  background:linear-gradient(180deg,rgba(255,113,206,.34),rgba(185,103,255,.16) 46%,rgba(1,205,254,.26));
}
.hero::before{
  content:"";position:absolute;right:-6%;top:8%;
  width:min(56%,460px);aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,#ffe9a8,#ff71ce 40%,#b967ff 68%,transparent 72%);
  opacity:.55;filter:blur(2px);z-index:0;
}
.hero-inner,.hero-art{position:relative;z-index:1}
.badge{
  display:inline-block;margin:0 0 14px;padding:6px 14px;border-radius:999px;
  border:1px solid var(--cyan);color:var(--mint);
  background:rgba(1,205,254,.12);font-size:1rem;letter-spacing:.04em;
}
.hero h1{
  font-size:clamp(1.95rem,5.2vw,3.5rem);
  color:#f2fff9;margin:0 0 14px;
  text-shadow:2px 2px 0 rgba(1,205,254,.55),-2px -2px 0 rgba(255,113,206,.5),0 0 28px rgba(135,255,113,.45);
}
.lede{max-width:44ch;margin:0;color:#d8f3d2;font-size:1.06rem}
.hero-art{margin:0}
.hero-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r);border:2px solid var(--edge)}
.orb{
  display:block;width:100%;aspect-ratio:1;border-radius:50%;
  filter:hue-rotate(-10deg) saturate(1.1);
  background:radial-gradient(circle at 50% 46%,#ffe9a8,#ff71ce 40%,#b967ff 64%,rgba(1,205,254,.2) 74%,transparent 76%);
}

/* 正文区 */
.content-zone{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:clamp(20px,3vw,36px);align-items:start;
  max-width:1180px;margin:0 auto;
  padding:clamp(26px,5vw,60px) clamp(18px,4vw,56px) 60px;
}
.prose{min-width:0;counter-reset:s}
.prose>article{
  position:relative;
  border:2px solid var(--line);border-radius:var(--r);
  padding:clamp(18px,3vw,30px);
  margin:0 0 26px;
  background:rgba(23,36,21,.62);
  counter-increment:s;
  transition:border-color .2s;
}
.prose>article:hover{border-color:rgba(1,205,254,.5)}
.prose>article::before{
  content:counter(s,decimal-leading-zero);
  position:absolute;right:16px;top:12px;
  color:rgba(1,205,254,.55);font-family:"Comic Neue",monospace;
  font-size:.94rem;letter-spacing:.12em;
}
.prose small{
  display:block;margin-bottom:6px;
  color:var(--cyan);font-family:"Comic Neue",monospace;
  font-size:1rem;letter-spacing:.2em;
}
.prose h2{color:var(--mint);font-size:clamp(1.32rem,2.7vw,1.85rem);text-shadow:0 0 18px rgba(135,255,113,.35)}
.prose h3{color:#c8ffbd;font-size:1.18rem}
.prose p{margin:0 0 1em}
.prose ul,.prose ol{padding-left:1.35em}
.prose li{margin:.32em 0}
.prose a{border-bottom:1px solid rgba(1,205,254,.5)}
.prose a:hover{border-bottom-color:var(--mint)}
.prose blockquote{
  margin:1.2em 0;padding:10px 18px;
  border-left:3px solid var(--pink);color:#ffe6f7;
}
.prose img{border-radius:14px;border:2px solid var(--edge);margin:1em 0}
.prose pre{overflow-x:auto;padding:14px;border-radius:14px;background:rgba(9,16,8,.8);border:1px solid var(--line)}
.prose code{font-family:"Comic Neue",ui-monospace,monospace;font-size:.96em}

/* 侧栏 */
.side{
  position:sticky;top:92px;
  border:2px solid var(--line);border-radius:var(--r);
  padding:18px;background:rgba(19,30,18,.8);
}
.kicker{display:block;margin-bottom:4px;color:var(--cyan);font-size:1rem;letter-spacing:.2em}
.side-h{font-size:1.2rem;color:var(--mint);margin:0 0 12px}
.side-list{list-style:none;margin:0;padding:0;counter-reset:n}
.side-list li{counter-increment:n;margin:0 0 8px;animation:rise .45s both}
.side-list li:nth-child(2){animation-delay:.05s}
.side-list li:nth-child(3){animation-delay:.1s}
.side-list li:nth-child(4){animation-delay:.15s}
.side-list li:nth-child(5){animation-delay:.2s}
.side-list a{
  display:flex;align-items:center;gap:10px;
  min-height:44px;padding:8px 12px;
  border:1px solid rgba(1,205,254,.28);border-radius:12px;
  color:var(--txt);font-size:1rem;transition:.18s;
}
.side-list a::before{
  content:counter(n,decimal-leading-zero);
  color:var(--cyan);font-size:.86rem;font-family:"Comic Neue",monospace;
}
.side-list a:hover{
  background:rgba(135,255,113,.14);border-color:var(--mint);
  color:var(--mint);transform:translateX(3px);
}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* 页脚 */
.foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px 24px;
  padding:26px clamp(18px,4vw,56px);
  border-top:2px solid rgba(1,205,254,.4);
  background:rgba(16,26,15,.86);
}
.foot-brand a{
  display:inline-block;
  font-size:clamp(1.5rem,5vw,2.9rem);font-weight:700;line-height:1.1;
  background:linear-gradient(92deg,var(--mint),var(--cyan) 58%,var(--pink));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.foot-nav ol{list-style:none;display:flex;flex-wrap:wrap;gap:2px 4px;margin:0;padding:0}
.foot-nav a{display:flex;align-items:center;min-height:44px;padding:8px 10px;color:var(--dim);font-size:1rem}
.foot-nav a:hover{color:var(--mint)}
.foot-copy{color:var(--dim);font-size:1rem}
.foot-copy a{display:inline-flex;align-items:center;min-height:44px;padding:0 4px;color:var(--cyan)}

@media (max-width:880px){
  .hero{
    grid-template-columns:minmax(0,1fr);
    min-height:0;border-radius:0 0 40px 40px;
    padding-bottom:44px;
  }
  .hero::before{width:84%;right:-20%;top:0;opacity:.4}
  .hero-art{max-width:340px}
  .content-zone{grid-template-columns:minmax(0,1fr)}
  .side{position:static;top:auto;order:2}
  .foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  body{font-size:16px}
  .brand-txt{font-size:1rem}
  .menu a{padding:8px 10px;font-size:1rem}
  .prose>article::before{right:12px;top:10px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}

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