@import url('https://fonts.googleapis.com/css2?family=Crimson+Text:wght@400;600;700&family=EB+Garamond:wght@400;500;600;700;800&display=swap');

:root{
  --neon:#69ff69;
  --cyan:#00ffff;
  --ink:#172617;
  --ink-deep:#0d170f;
  --chrome:linear-gradient(180deg,#f6fff8 0%,#c6f2d1 34%,#7fb894 50%,#e9fff1 68%,#9ad2ab 100%);
  --glow:0 0 14px rgba(105,255,105,.55);
  --line:rgba(105,255,105,.26);
  --body:#dcf2e2;
  --dim:#a4c6b0;
  --max:1160px;
  --serif:'EB Garamond',Georgia,'Songti SC','Noto Serif SC',serif;
  --text:'Crimson Text',Georgia,'Songti SC','Noto Serif SC',serif;
}

*{box-sizing:border-box}
html{font-size:17px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--text);
  font-size:1.05rem;
  line-height:1.8;
  color:var(--body);
  background-color:var(--ink);
  background-image:
    radial-gradient(880px 460px at 84% -6%, rgba(0,255,255,.16), transparent 70%),
    radial-gradient(700px 400px at 4% 2%, rgba(105,255,105,.13), transparent 72%),
    radial-gradient(rgba(105,255,105,.15) 1px, transparent 1px);
  background-size:auto,auto,24px 24px;
}
img{max-width:100%;height:auto}
a{color:var(--cyan)}
a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px}
h1,h2,h3{font-family:var(--serif);font-weight:700;color:#f2fff5;letter-spacing:.01em}
small{
  display:block;
  font-family:var(--serif);
  font-size:.9rem;
  line-height:1.5;
  letter-spacing:.3em;
  color:var(--cyan);
  text-shadow:0 0 10px rgba(0,255,255,.45);
  margin-bottom:.55em;
}

/* 顶部：品牌居左 + 横向文字链接 */
.top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  max-width:var(--max);
  margin:0 auto;
  padding:16px 22px 12px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  text-decoration:none;
  flex:0 0 auto;
}
.brand .mark{
  width:34px;height:34px;
  border-radius:50%;
  object-fit:cover;
  border:1px solid rgba(0,255,255,.6);
  box-shadow:0 0 12px rgba(0,255,255,.45);
}
.brand span{
  font-family:var(--serif);
  font-size:1.62rem;
  font-weight:800;
  letter-spacing:.09em;
  background:var(--chrome);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  filter:drop-shadow(0 0 12px rgba(0,255,255,.5));
}
.menu p{display:flex;flex-wrap:wrap;gap:2px 4px;margin:0;justify-content:flex-end}
.menu a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:40px;
  padding:8px 10px;
  border-radius:999px;
  font-family:var(--serif);
  font-size:1rem;
  color:#cbe9d5;
  text-decoration:none;
  transition:color .2s,background .2s;
}
.menu a::before{
  content:"✦";
  font-size:.68em;
  color:var(--cyan);
  text-shadow:var(--glow);
}
.menu a:hover{color:#fff;background:rgba(105,255,105,.13);text-shadow:var(--glow)}

/* 粘性锚点条 */
.rail{
  position:sticky;
  top:0;
  z-index:30;
  background:rgba(13,23,15,.88);
  backdrop-filter:blur(9px);
  border-top:1px solid var(--line);
  border-bottom:1px solid rgba(0,255,255,.3);
  box-shadow:0 6px 20px rgba(0,0,0,.4);
}
.anchors{max-width:var(--max);margin:0 auto;padding:0 14px;overflow-x:auto;scrollbar-width:thin}
.anchors p{display:flex;gap:6px;margin:0;padding:7px 0;flex-wrap:nowrap}
.anchors a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:6px 13px;
  border-radius:4px;
  border:1px solid transparent;
  font-family:var(--serif);
  font-size:.96rem;
  color:#b7dcc4;
  text-decoration:none;
  white-space:nowrap;
  transition:background .2s,color .2s,box-shadow .2s;
}
.anchors a:hover,
.anchors a.on{
  color:#0d170f;
  background:linear-gradient(180deg,#e6ffec,#8df3a6);
  border-color:rgba(0,255,255,.7);
  box-shadow:0 0 16px rgba(105,255,105,.55);
}

/* 首屏拼贴 */
.hero{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  align-items:center;
  gap:26px;
  min-height:70vh;
  max-width:var(--max);
  margin:0 auto;
  padding:46px 22px 34px;
  background-image:
    linear-gradient(rgba(105,255,105,.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(105,255,105,.09) 1px, transparent 1px);
  background-size:48px 48px;
  background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"✦";
  position:absolute;
  top:10%;right:4%;
  font-size:2.2rem;
  color:var(--cyan);
  text-shadow:0 0 18px rgba(0,255,255,.85);
  opacity:.8;
  animation:twinkle 4.5s ease-in-out infinite;
}
@keyframes twinkle{
  0%,100%{opacity:.35;transform:scale(.85) rotate(0)}
  50%{opacity:.95;transform:scale(1.15) rotate(18deg)}
}
.shard{
  position:absolute;
  margin:0;
  border-radius:4px;
  overflow:hidden;
  border:1px solid rgba(0,255,255,.5);
  box-shadow:0 18px 46px rgba(0,0,0,.6), inset 0 0 0 1px rgba(105,255,105,.2);
}
.shard .shot{display:block;width:100%;height:100%;object-fit:cover}
.shard-fill{display:block;width:100%;height:100%;background:linear-gradient(135deg,rgba(0,255,255,.55),rgba(105,255,105,.65))}
.shard.s1{width:min(38%,318px);aspect-ratio:4/5;left:6%;top:7%;transform:rotate(-3deg);z-index:2}
.shard.s2{width:min(31%,255px);aspect-ratio:3/4;left:25%;bottom:5%;transform:rotate(4.5deg);z-index:1}
.hero-copy{grid-column:2;position:relative;z-index:3;text-align:right}
.eyes{
  margin:0 0 .6em;
  font-family:var(--serif);
  font-size:.95rem;
  letter-spacing:.34em;
  color:var(--cyan);
  text-shadow:0 0 12px rgba(0,255,255,.6);
}
.hero h1{
  margin:0 0 .36em;
  font-size:clamp(2.05rem,5.2vw,3.5rem);
  line-height:1.16;
  background:var(--chrome);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  filter:drop-shadow(0 3px 14px rgba(0,255,255,.35));
}
.lede{margin:0 0 1.4em;font-size:1.08rem;color:var(--dim);max-width:34ch;margin-left:auto}
.cta{
  display:inline-flex;
  align-items:center;
  min-height:46px;
  padding:11px 26px;
  border-radius:999px;
  border:1px solid rgba(0,255,255,.75);
  background:linear-gradient(180deg,#f2fff5,#9bf2b1 46%,#57d97e);
  color:#0d170f;
  font-family:var(--serif);
  font-size:1rem;
  font-weight:700;
  letter-spacing:.12em;
  text-decoration:none;
  box-shadow:0 8px 22px rgba(0,0,0,.45),0 0 16px rgba(105,255,105,.55);
  transition:transform .16s, box-shadow .2s;
}
.cta:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.5),0 0 24px rgba(0,255,255,.6)}

/* 正文与右侧 aside */
.stage{
  display:grid;
  grid-template-columns:minmax(0,1fr) 288px;
  gap:46px;
  align-items:start;
  max-width:var(--max);
  margin:0 auto;
  padding:58px 22px 24px;
}
.prose{min-width:0;font-size:1.06rem}
.prose > section{
  padding:36px 0;
  scroll-margin-top:96px;
  border-top:1px solid var(--line);
}
.prose > section:first-child{border-top:0;padding-top:0}
.prose h2{
  margin:.1em 0 .75em;
  font-size:clamp(1.5rem,2.9vw,2rem);
  line-height:1.32;
  text-shadow:0 0 18px rgba(105,255,105,.3);
}
.prose h2::after,
.prose h3::after{
  content:"";
  display:block;
  width:64px;
  height:3px;
  margin-top:.55em;
  border-radius:2px;
  background:linear-gradient(90deg,var(--neon),var(--cyan));
  box-shadow:0 0 10px rgba(0,255,255,.7);
}
.prose h3{
  margin:1.6em 0 .5em;
  font-size:clamp(1.16rem,2vw,1.38rem);
  line-height:1.4;
}
.prose p{margin:0 0 1.1em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.4em}
.prose li{margin:0 0 .5em}
.prose li::marker{color:var(--neon)}
.prose blockquote{
  margin:1.4em 0;
  padding:.9em 1.2em;
  border-left:3px solid var(--cyan);
  border-radius:0 4px 4px 0;
  background:linear-gradient(90deg,rgba(0,255,255,.1),rgba(105,255,105,.03));
  color:#e6fff0;
}
.prose figure{margin:1.5em 0}
.prose img{border-radius:4px;border:1px solid rgba(0,255,255,.4)}
.prose a{color:var(--cyan);text-decoration:underline;text-decoration-color:rgba(0,255,255,.45);text-underline-offset:3px}
.prose a:hover{color:#fff}
.prose hr{border:0;border-top:1px dashed var(--line);margin:2em 0}

.jump{
  position:sticky;
  top:82px;
  align-self:start;
  padding:20px 16px 16px;
  border:1px solid var(--line);
  border-bottom:3px solid rgba(105,255,105,.8);
  border-radius:4px;
  background:linear-gradient(165deg,rgba(0,255,255,.1),rgba(105,255,105,.04));
  box-shadow:0 0 0 1px rgba(0,255,255,.12) inset,0 12px 30px rgba(0,0,0,.35);
}
.jump h2{margin:0 0 .8em;font-size:1.3rem}
.jump p{margin:0}
.jump a{
  display:flex;
  align-items:center;
  min-height:40px;
  padding:6px 6px;
  border-bottom:1px dashed rgba(105,255,105,.24);
  font-family:var(--serif);
  font-size:1rem;
  color:#c9ecd5;
  text-decoration:none;
}
.jump p:last-child a{border-bottom:0}
.jump a::before{content:"✦";margin-right:9px;font-size:.7em;color:var(--neon);text-shadow:var(--glow)}
.jump a:hover{color:#fff;text-shadow:var(--glow)}

/* 页脚：单行，版权与底部链接分列两边 */
.foot{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  max-width:var(--max);
  margin:56px auto 0;
  padding:30px 22px 26px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,transparent,rgba(0,255,255,.07));
}
.foot p{margin:0}
.foot .meta{order:1;font-size:.9rem;color:#94b7a1;letter-spacing:.08em}
.foot .huge{order:2;text-align:right;line-height:.9}
.foot .huge a{
  font-family:var(--serif);
  font-size:clamp(2rem,8.5vw,4.6rem);
  font-weight:800;
  letter-spacing:.02em;
  text-decoration:none;
  background:var(--chrome);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  filter:drop-shadow(0 0 16px rgba(0,255,255,.42));
}

/* 动效 */
.rv{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}

@media (max-width:900px){
  .top{flex-direction:column;align-items:flex-start;gap:6px;padding:12px 16px 6px}
  .menu{width:100%;overflow-x:auto}
  .menu p{flex-wrap:nowrap;justify-content:flex-start;padding-bottom:2px}
  .menu a{white-space:nowrap}
  .anchors{padding:0 10px}
  .hero{grid-template-columns:1fr;min-height:0;padding:20px 16px 26px;gap:16px;overflow:visible}
  .hero::before{font-size:1.5rem;top:14px;right:14px}
  .hero-copy{grid-column:1;order:-1;text-align:left}
  .lede{margin-left:0}
  .shard{position:static;width:100%;aspect-ratio:16/10;transform:none}
  .stage{grid-template-columns:1fr;gap:26px;padding:26px 16px 10px}
  .jump{position:static}
  .foot{flex-direction:row;padding:22px 16px 20px;margin-top:34px}
}
@media (max-width:520px){
  html{font-size:16px}
  .prose > section{padding:28px 0;scroll-margin-top:88px}
  .foot .huge a{font-size:2rem}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .hero::before{animation:none}
  .cta:hover{transform:none}
}

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