:root{
  --red:#ff0000;
  --pink:#ff1493;
  --ink:#261717;
  --bg:#0b0609;
  --line:rgba(255,255,255,.12);
  --txt:#f8eff2;
  --dim:#c2acb4;
  --r:10px;
  --dock:74px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  overflow-x:hidden;
  background:var(--bg);
  color:var(--txt);
  font-family:'DM Sans','Space Grotesk',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  font-size:17px;
  line-height:1.7;
  padding-bottom:calc(var(--dock) + 40px);
  letter-spacing:.01em;
}
body::before{
  content:"";
  position:fixed;
  inset:-25%;
  z-index:-2;
  pointer-events:none;
  opacity:.9;
  filter:blur(26px) saturate(1.25);
  background:
    radial-gradient(38% 40% at 16% 20%,rgba(255,0,0,.5),transparent 62%),
    radial-gradient(42% 38% at 84% 14%,rgba(255,20,147,.42),transparent 60%),
    radial-gradient(48% 44% at 66% 86%,rgba(128,60,255,.34),transparent 64%),
    radial-gradient(36% 36% at 8% 78%,rgba(0,168,255,.2),transparent 62%);
  animation:auroraA 11s ease-in-out infinite alternate;
}
@keyframes auroraA{
  0%{transform:translate3d(-2%,-1%,0) rotate(0deg) scale(1.05)}
  50%{transform:translate3d(2%,2%,0) rotate(4deg) scale(1.12)}
  100%{transform:translate3d(-1%,3%,0) rotate(-3deg) scale(1.08)}
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:radial-gradient(120% 92% at 50% 0%,transparent 42%,rgba(11,6,9,.78) 100%);
}
menu,ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--pink)}
svg{display:block}
:focus-visible{outline:2px solid var(--pink);outline-offset:2px}

.hero{
  position:relative;
  min-height:45vh;
  display:grid;
  place-items:center;
  padding:5rem 1.25rem 3rem;
  text-align:center;
  overflow:hidden;
}
.hero .aurora{
  position:absolute;
  left:-6%;
  right:-6%;
  top:-10%;
  height:132%;
  z-index:-1;
  pointer-events:none;
  background:radial-gradient(52% 58% at 50% 30%,rgba(255,0,0,.44),rgba(255,20,147,.2) 46%,transparent 74%);
  filter:blur(30px);
  will-change:transform;
}
.hero-core{max-width:46rem}
.hero-line{display:flex;align-items:center;justify-content:center;gap:.7rem;flex-wrap:wrap}
.hero-mark{
  width:38px;height:38px;flex:0 0 auto;
  filter:drop-shadow(0 0 16px rgba(255,20,147,.8));
  animation:spin 12s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
h1{
  margin:0;
  font-family:'Space Grotesk','DM Sans',system-ui,'PingFang SC','Microsoft YaHei',sans-serif;
  font-size:clamp(1.9rem,5.6vw,3.2rem);
  line-height:1.18;
  letter-spacing:-.02em;
  font-weight:700;
  background:linear-gradient(100deg,#ffffff 6%,#ff9ec4 44%,var(--pink) 64%,var(--red) 97%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  text-wrap:balance;
}
.hero-sub{
  margin:.9rem auto 0;
  max-width:34rem;
  color:var(--dim);
  font-size:1.02rem;
}

.stage{max-width:1120px;margin:0 auto;padding:0 1.25rem 2.5rem}
.shell{display:grid;grid-template-columns:216px minmax(0,1fr);gap:2rem;align-items:start}

.rail{position:sticky;top:1.5rem;font-size:.95rem}
.rail-h{
  margin:0 0 .55rem;
  display:flex;align-items:center;gap:.5rem;
  font-family:'Space Grotesk',system-ui,sans-serif;
  font-size:.86rem;font-weight:600;letter-spacing:.2em;
  color:var(--dim);
}
.rail-deco,.rail-check{
  flex:0 0 auto;width:6px;height:6px;border-radius:50%;
  background:var(--pink);box-shadow:0 0 10px var(--pink);
}
.rail-list{
  display:grid;gap:.1rem;
  margin:0 0 1.5rem;
  border-left:1px solid var(--line);
}
.rail-list a{
  display:flex;align-items:center;gap:.5rem;
  min-height:40px;
  margin-left:-1px;
  padding:.35rem .6rem .35rem .8rem;
  border-left:2px solid transparent;
  color:var(--dim);
  text-decoration:none;
  transition:color .25s,border-color .25s,background .25s;
}
.rail-list a:hover,.rail-list a:focus-visible{
  color:#fff;
  border-left-color:var(--red);
  background:linear-gradient(90deg,rgba(255,0,0,.18),transparent);
}
.rail-list .num{font-size:.72rem;letter-spacing:.1em;color:rgba(255,255,255,.34)}
.rail-top{
  display:flex;align-items:center;gap:.55rem;
  min-height:44px;
  padding:0 .9rem;
  border:1px solid var(--line);
  border-radius:999px;
  color:var(--dim);
  text-decoration:none;
  transition:color .25s,border-color .25s,box-shadow .25s;
}
.rail-top .rail-h{margin:0;font-size:.9rem;letter-spacing:.12em;color:inherit}
.rail-top:hover,.rail-top:focus-visible{color:#fff;border-color:var(--pink);box-shadow:0 0 24px rgba(255,20,147,.32)}

.prose{min-width:0}
.prose section{
  position:relative;
  margin:0 0 1.75rem;
  padding:1.6rem 1.35rem 1.9rem;
  border:1px solid var(--line);
  border-radius:var(--r);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.014));
  scroll-margin-top:1.25rem;
  scroll-margin-bottom:130px;
  transition:box-shadow .35s,border-color .35s;
}
.prose section::after{
  content:"";
  position:absolute;
  left:1.35rem;right:1.35rem;bottom:0;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--red),var(--pink) 55%,transparent);
  opacity:.8;
}
.prose section.hit{border-color:var(--pink);box-shadow:0 0 0 1px rgba(255,20,147,.5),0 0 34px rgba(255,20,147,.28)}
.prose h2{
  margin:0 0 .85rem;
  font-family:'Space Grotesk',system-ui,'PingFang SC',sans-serif;
  font-size:clamp(1.32rem,3vw,1.7rem);
  line-height:1.35;
  letter-spacing:-.01em;
}
.prose h2 span{
  background:linear-gradient(100deg,#ffffff,#ffb9d3 58%,#ff5c8d);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.prose h3{
  margin:1.5rem 0 .55rem;
  font-size:1.14rem;
  line-height:1.45;
  color:#ffe1ec;
}
.prose h3 span{color:#ffd0e0}
.prose p{margin:0 0 1rem;color:#ecdee3}
.prose a{color:var(--pink);text-underline-offset:3px}
.prose strong{color:#fff}
.prose em{color:#ffc7dd}
.prose ul,.prose ol{padding-left:1.15rem;margin:0 0 1rem}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:.35rem 0}
.prose blockquote{
  margin:1rem 0;
  padding:.85rem 1rem;
  border-left:3px solid var(--pink);
  border-radius:0 var(--r) var(--r) 0;
  background:rgba(255,20,147,.09);
  color:#f4e2e8;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{max-width:100%;height:auto;border-radius:var(--r);margin:.4rem 0}
.prose figure{margin:1rem 0}
.prose figcaption{font-size:.86rem;color:var(--dim);margin-top:.4rem}
.prose hr{border:0;height:1px;background:var(--line);margin:1.5rem 0}
.prose table{width:100%;border-collapse:collapse;font-size:.95rem;margin:0 0 1rem}
.prose th,.prose td{border:1px solid var(--line);padding:.5rem .6rem;text-align:left}
.prose th{background:rgba(255,255,255,.05);color:#fff}
.prose section>:last-child{margin-bottom:0}

.foot{
  max-width:1120px;
  margin:0 auto;
  padding:2.1rem 1.25rem 2.4rem;
  text-align:center;
  border-top:1px solid var(--line);
}
.foot p{
  margin:0;
  font-family:'Space Grotesk',system-ui,sans-serif;
  letter-spacing:.1em;
  color:#fff;
}
.foot small{display:block;margin-top:.4rem;font-size:.84rem;letter-spacing:.14em;color:var(--dim)}

.dock{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:60;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  grid-template-areas:"more brand side";
  align-items:center;
  gap:1rem;
  padding:.55rem 1.1rem;
  background:rgba(14,8,11,.78);
  -webkit-backdrop-filter:blur(14px) saturate(1.3);
  backdrop-filter:blur(14px) saturate(1.3);
  border-top:1px solid rgba(255,255,255,.13);
  box-shadow:0 -12px 34px rgba(0,0,0,.5);
}
.dock::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--red),var(--pink),transparent);
  opacity:.85;
}
.dock-brand{
  grid-area:brand;
  justify-self:center;
  padding:.5rem .6rem;
  border-radius:8px;
  font-family:'Space Grotesk',system-ui,sans-serif;
  font-size:1.06rem;
  font-weight:700;
  letter-spacing:.06em;
  text-decoration:none;
  background:linear-gradient(100deg,#ffffff,#ffaecb 58%,var(--pink));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.dock-more{grid-area:more;justify-self:start;position:relative}
.dock-more summary{
  list-style:none;
  cursor:pointer;
  display:inline-flex;align-items:center;gap:.45rem;
  min-height:40px;
  padding:.4rem .85rem;
  border:1px solid var(--line);
  border-radius:999px;
  color:var(--txt);
  font-size:.95rem;
  transition:border-color .25s,box-shadow .25s;
}
.dock-more summary::-webkit-details-marker{display:none}
.dock-more summary::after{
  content:"";
  width:6px;height:6px;
  border-right:2px solid var(--pink);
  border-bottom:2px solid var(--pink);
  transform:rotate(-135deg) translate(-1px,1px);
  transition:transform .25s;
}
.dock-more[open] summary{border-color:var(--pink);box-shadow:0 0 22px rgba(255,20,147,.34)}
.dock-more[open] summary::after{transform:rotate(45deg) translate(-1px,-1px)}
.drop{
  position:absolute;
  left:0;
  bottom:calc(100% + .6rem);
  min-width:190px;
  display:grid;
  gap:.12rem;
  padding:.45rem;
  border:1px solid var(--line);
  border-radius:12px;
  background:rgba(16,9,13,.97);
  box-shadow:0 -16px 42px rgba(0,0,0,.6);
}
.drop a{
  display:flex;align-items:center;
  min-height:40px;
  padding:.35rem .7rem;
  border-radius:8px;
  color:var(--txt);
  font-size:.95rem;
  text-decoration:none;
}
.drop a:hover,.drop a:focus-visible{
  color:#fff;
  background:linear-gradient(90deg,rgba(255,0,0,.28),rgba(255,20,147,.12));
}
.dock-side{grid-area:side;justify-self:end;display:flex;align-items:center;gap:.7rem}
.dock-links{display:flex;gap:.15rem}
.dock-links a{
  display:inline-flex;align-items:center;
  min-height:40px;
  padding:.35rem .7rem;
  border-radius:999px;
  color:var(--dim);
  font-size:.95rem;
  white-space:nowrap;
  text-decoration:none;
  transition:color .25s,background .25s;
}
.dock-links a:hover,.dock-links a:focus-visible{color:#fff;background:rgba(255,255,255,.08)}
.dock-find{
  display:flex;align-items:center;gap:.25rem;
  padding:.15rem .2rem .15rem .1rem;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(255,255,255,.04);
}
.dock-find input{
  width:8.5rem;
  min-height:40px;
  padding:.2rem .6rem;
  border:0;
  background:transparent;
  color:var(--txt);
  font:inherit;
  font-size:.92rem;
  outline:none;
}
.dock-find input::placeholder{color:rgba(255,255,255,.46)}
.dock-find button{
  display:grid;place-items:center;
  width:40px;height:40px;
  border:0;border-radius:50%;
  background:linear-gradient(135deg,var(--red),var(--pink));
  box-shadow:0 0 16px rgba(255,20,147,.4);
  cursor:pointer;
}
.dock-find svg{width:15px;height:15px;fill:none;stroke:#fff;stroke-width:2.2;stroke-linecap:round}

@media (max-width:900px){
  .shell{grid-template-columns:1fr;gap:1.3rem}
  .rail{position:static}
  .rail-list{
    display:flex;flex-wrap:wrap;gap:.35rem;
    border-left:0;
    margin-bottom:1rem;
  }
  .rail-list a{
    min-height:40px;
    margin:0;
    padding:.3rem .8rem;
    border:1px solid var(--line);
    border-radius:999px;
  }
  .rail-list a:hover,.rail-list a:focus-visible{border-left-color:var(--line);border-color:var(--pink)}
  .rail-list .num{display:none}
  .rail-top{display:inline-flex;width:auto}
  .prose section{padding:1.35rem 1.1rem 1.7rem}
  .prose section::after{left:1.1rem;right:1.1rem}
}

@media (max-width:760px){
  body{--dock:112px;padding-bottom:calc(var(--dock) + 34px)}
  .dock{
    grid-template-columns:auto 1fr auto;
    grid-template-areas:"brand brand brand" "more . links";
    gap:.45rem .6rem;
    padding:.5rem .8rem calc(.5rem + env(safe-area-inset-bottom,0px));
  }
  .dock-brand{justify-self:center}
  .dock-more{justify-self:start}
  .dock-side{justify-self:end}
  .dock-find{display:none}
  .prose section{scroll-margin-bottom:180px}
  .hero{min-height:auto;padding:3.2rem 1.1rem 2.4rem}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  body::before,.hero-mark{animation:none}
  .hero .aurora{transform:none!important}
  *{transition-duration:.01ms!important}
}

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