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

:root{
  --pink:#ff0080;
  --mag:#ff00ff;
  --ink:#26171f;
  --paper:#f7edf3;
  --glass:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.13);
  --mono:'Fira Code','SFMono-Regular',ui-monospace,monospace;
}

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

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

body{
  margin:0;
  font-family:'Fira Sans','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--paper);
  background:var(--ink);
  overflow-x:hidden;
}

body::before{
  content:'';
  position:fixed;
  inset:-22vmax;
  z-index:-2;
  background:
    radial-gradient(38% 42% at 16% 20%,rgba(255,0,128,.58),transparent 64%),
    radial-gradient(34% 38% at 80% 14%,rgba(255,0,255,.46),transparent 66%),
    radial-gradient(48% 52% at 68% 80%,rgba(255,0,128,.42),transparent 68%),
    radial-gradient(42% 48% at 22% 90%,rgba(122,0,255,.42),transparent 68%),
    conic-gradient(from 205deg at 50% 50%,#26171f,#3b1030,#26171f,#45113c,#26171f);
  filter:blur(26px) saturate(135%);
  animation:flow 26s ease-in-out infinite alternate;
}

body::after{
  content:'';
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.042) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.042) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(120% 100% at 50% 0%,#000 30%,transparent 92%);
  mask-image:radial-gradient(120% 100% at 50% 0%,#000 30%,transparent 92%);
}

@keyframes flow{
  0%{transform:translate3d(0,0,0) scale(1)}
  50%{transform:translate3d(2.5%,-2.5%,0) scale(1.07)}
  100%{transform:translate3d(-2%,2%,0) scale(1.02)}
}

a{color:inherit}

img{max-width:100%}

:focus-visible{
  outline:2px solid var(--mag);
  outline-offset:3px;
}

.topline{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:44px;
  padding:6px 18px;
  font-family:var(--mono);
  font-size:16px;
  letter-spacing:.18em;
  color:#ffe4f2;
  background:linear-gradient(96deg,rgba(255,0,128,.3),rgba(255,0,255,.24),rgba(255,0,128,.3));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}

.pulse{
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--mag);
  box-shadow:0 0 0 0 rgba(255,0,255,.65);
  animation:pulse 2.6s ease-out infinite;
}

@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,0,255,.6)}
  70%{box-shadow:0 0 0 12px rgba(255,0,255,0)}
  100%{box-shadow:0 0 0 0 rgba(255,0,255,0)}
}

.bar{
  position:sticky;
  top:0;
  z-index:30;
  background:rgba(38,23,31,.82);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
}

.brandrow{
  max-width:1200px;
  margin:0 auto;
  padding:10px 20px 2px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  min-height:48px;
  text-decoration:none;
  font-weight:700;
  font-size:clamp(21px,4.6vw,28px);
  letter-spacing:.05em;
  color:#fff;
}

.orb{
  width:20px;
  height:20px;
  border-radius:50%;
  background:conic-gradient(from 0deg,var(--pink),var(--mag),#7b2bff,var(--pink));
  filter:blur(.4px);
  animation:orb 12s linear infinite;
}

@keyframes orb{to{transform:rotate(1turn)}}

.menu{
  max-width:1200px;
  margin:0 auto;
  padding:0 20px 12px;
}

.menu > ol{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:0;
  padding:0;
  list-style:none;
}

.menu a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 15px;
  border-radius:22px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  text-decoration:none;
  font-family:var(--mono);
  font-size:16px;
  color:#f4e3ee;
  transition:background .25s,color .25s,transform .25s;
}

.menu a:hover,
.menu a:focus-visible{
  background:linear-gradient(120deg,var(--pink),var(--mag));
  color:#fff;
  transform:translateY(-2px);
}

.hero{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  align-items:center;
  gap:clamp(24px,4vw,56px);
  max-width:1200px;
  margin:0 auto;
  min-height:100vh;
  padding:clamp(26px,6vh,66px) 20px clamp(34px,7vh,74px);
}

@supports (min-height:100svh){
  .hero{min-height:100svh}
}

.herotext h1{
  margin:0 0 18px;
  font-size:clamp(2rem,7vw,4.35rem);
  line-height:1.14;
  letter-spacing:-.01em;
  word-break:break-word;
  background:linear-gradient(108deg,#ffffff 8%,#ffc7e6 42%,#ff7ad0 72%,#b06bff 96%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.lead{
  margin:0 0 26px;
  max-width:36ch;
  font-size:18px;
  line-height:1.7;
  color:rgba(247,237,243,.86);
}

.acts{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

.cta,
.ghost{
  display:inline-flex;
  align-items:center;
  min-height:48px;
  padding:0 24px;
  border-radius:24px;
  text-decoration:none;
  font-family:var(--mono);
  font-size:16px;
  letter-spacing:.06em;
}

.cta{
  color:#fff;
  background:linear-gradient(110deg,var(--pink),var(--mag));
  box-shadow:0 18px 44px -22px rgba(255,0,128,.95);
}

.cta:hover{filter:brightness(1.1)}

.ghost{
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:#f6e6f0;
}

.ghost:hover{background:rgba(255,255,255,.13)}

.herofig{
  position:relative;
  overflow:hidden;
  min-height:240px;
  aspect-ratio:4/5;
  max-height:74vh;
  border-radius:28px;
  border:1px solid rgba(255,255,255,.17);
  background:rgba(255,255,255,.06);
  box-shadow:0 40px 90px -46px rgba(255,0,128,.85);
}

.heroimg{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  transform:scale(1.03);
  will-change:transform;
}

.glow{
  position:absolute;
  inset:-30%;
  background:conic-gradient(from 0deg,#ff0080,#ff00ff,#7b2bff,#ff5ab0,#ff0080);
  filter:blur(6px) saturate(150%);
  animation:orb 22s linear infinite;
}

.badges{
  position:absolute;
  inset:0;
  pointer-events:none;
}

.badge{
  position:absolute;
  padding:7px 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.26);
  background:rgba(38,23,31,.52);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  font-family:var(--mono);
  font-size:16px;
  line-height:1.5;
  color:#fff;
  white-space:nowrap;
}

.badge:nth-child(1){top:11%;left:7%;animation:drift 11s ease-in-out infinite}
.badge:nth-child(2){top:44%;right:6%;animation:drift 13s ease-in-out infinite reverse}
.badge:nth-child(3){bottom:12%;left:12%;animation:drift 9s ease-in-out infinite}

@keyframes drift{
  0%,100%{transform:translate3d(0,0,0)}
  50%{transform:translate3d(0,-11px,0)}
}

.wrap{
  display:grid;
  grid-template-columns:minmax(0,262px) minmax(0,1fr);
  align-items:start;
  gap:clamp(20px,3vw,44px);
  max-width:1200px;
  margin:0 auto;
  padding:clamp(26px,5vw,64px) 20px;
}

.side{
  position:sticky;
  top:148px;
  padding:20px 18px;
  border-radius:28px;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}

.side small{
  display:block;
  font-family:var(--mono);
  font-size:16px;
  letter-spacing:.2em;
  color:#ff9ecb;
}

.side h2{
  margin:2px 0 14px;
  font-size:20px;
  letter-spacing:.1em;
}

.toc{
  display:grid;
  gap:3px;
  margin:0 0 14px;
  padding:0;
  list-style:none;
}

.toc a{
  display:flex;
  align-items:center;
  min-height:40px;
  padding:4px 10px;
  border-radius:12px;
  font-size:16px;
  line-height:1.5;
  text-decoration:none;
  color:#f2e2ec;
  transition:background .2s,color .2s;
}

.toc a:hover,
.toc a:focus-visible{
  background:rgba(255,0,128,.24);
  color:#fff;
}

.backtop{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:4px 10px;
  border-radius:12px;
  font-family:var(--mono);
  font-size:16px;
  text-decoration:none;
  color:#ffb8d8;
  border:1px solid rgba(255,0,128,.34);
}

.backtop:hover{background:rgba(255,0,128,.2);color:#fff}

.content{min-width:0}

.prose{
  counter-reset:sec;
  padding:clamp(22px,4vw,46px);
  border-radius:28px;
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.09);
  font-size:17px;
  line-height:1.85;
}

.prose section{
  position:relative;
  counter-increment:sec;
  padding:clamp(18px,3vw,32px) 0;
  border-top:1px solid rgba(255,255,255,.11);
  scroll-margin-top:172px;
}

.prose section:first-child{
  border-top:0;
  padding-top:0;
}

.prose small{
  display:block;
  font-family:var(--mono);
  font-size:16px;
  letter-spacing:.2em;
  color:#ff9ecb;
}

.prose h2{
  margin:.22em 0 .6em;
  font-size:clamp(21px,3vw,29px);
  line-height:1.36;
  letter-spacing:.01em;
}

.prose h2::before{
  content:counter(sec,decimal-leading-zero);
  display:inline-block;
  margin-right:.6em;
  font-family:var(--mono);
  font-size:.66em;
  color:var(--mag);
  vertical-align:.08em;
}

.prose h3{
  margin:1.2em 0 .5em;
  font-size:19px;
  line-height:1.45;
}

.prose p{margin:0 0 1em}

.prose a{
  color:#ffb0d6;
  text-decoration:none;
  border-bottom:1px solid rgba(255,0,128,.5);
}

.prose a:hover{color:#fff;border-bottom-color:#fff}

.prose ul,
.prose ol{pargin:0 0 1em;padding-left:1.4em;margin:0 0 1em}

.prose li{margin:.3em 0}

.prose blockquote{
  margin:1.2em 0;
  padding:14px 20px;
  border-left:3px solid var(--pink);
  border-radius:0 18px 18px 0;
  background:rgba(255,0,128,.09);
}

.prose blockquote p:last-child{margin:0}

.prose table{
  width:100%;
  border-collapse:collapse;
  margin:1.2em 0;
  font-size:16px;
}

.prose th,
.prose td{
  padding:10px 12px;
  border-bottom:1px solid rgba(255,255,255,.14);
  text-align:left;
}

.prose th{
  font-family:var(--mono);
  color:#ffb8d8;
}

.foot{
  max-width:1200px;
  margin:0 auto;
  padding:clamp(30px,6vw,64px) 20px 44px;
  border-top:1px solid var(--line);
}

.bigmark{
  margin:0 0 26px;
  font-size:clamp(38px,11vw,116px);
  line-height:.96;
  font-weight:700;
  letter-spacing:-.02em;
  background:linear-gradient(102deg,#ff0080,#ff00ff 46%,#ff9ad4 88%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
  margin-bottom:26px;
}

.cols dl{margin:0;min-width:0}

.cols dt{
  margin-bottom:6px;
  font-family:var(--mono);
  font-size:16px;
  letter-spacing:.1em;
  color:#ff9ecb;
}

.cols dd{margin:0}

.cols a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  font-size:16px;
  color:#f2e2ec;
  text-decoration:none;
}

.cols a:hover{color:#fff}

.cr{
  margin:0 0 14px;
  font-family:var(--mono);
  font-size:16px;
  color:rgba(247,237,243,.62);
}

.rv{
  opacity:0;
  transform:translate3d(0,16px,0);
  transition:opacity .7s ease,transform .7s ease;
}

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

@media (max-width:860px){
  .hero{
    grid-template-columns:minmax(0,1fr);
    align-items:start;
    min-height:0;
    padding-top:26px;
  }
  .herofig{
    aspect-ratio:16/11;
    max-height:none;
    order:2;
  }
  .lead{max-width:none}
  .wrap{grid-template-columns:minmax(0,1fr)}
  .side{
    position:static;
    padding:16px;
  }
  .side h2{margin-bottom:10px}
  .toc{
    display:flex;
    gap:8px;
    overflow-x:auto;
    padding-bottom:6px;
    margin-bottom:10px;
    scrollbar-width:thin;
  }
  .toc li{flex:0 0 auto}
  .toc a{
    white-space:nowrap;
    border:1px solid var(--line);
    background:rgba(255,255,255,.05);
    min-height:40px;
  }
  .prose section{scroll-margin-top:196px}
  .bigmark{font-size:clamp(34px,13vw,72px)}
}

@media (max-width:560px){
  .badge:nth-child(2){right:4%}
  .badge{padding:6px 11px}
  .cols{gap:12px}
  .cols a{min-height:42px}
  .menu a{padding:0 12px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  body::before,
  .orb,
  .pulse,
  .glow,
  .badge{animation:none}
  .rv{opacity:1;transform:none;transition:none}
  .heroimg{transform:none}
}

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