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

:root{
  --pink:#ff0080;
  --mag:#ff00ff;
  --ink:#26171f;
  --ink2:#3b2130;
  --txt:#f8eef4;
  --dim:#c9a7ba;
  --line:rgba(255,255,255,.13);
  --card:rgba(255,255,255,.06);
  --r:4px;
  --wrap:1180px;
  --shadow:0 22px 46px -26px rgba(0,0,0,.95);
}

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

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

body{
  margin:0;
  background:var(--ink);
  color:var(--txt);
  font-family:'Outfit','Work Sans',-apple-system,BlinkMacSystemFont,'PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}

body::before{
  content:"";
  position:fixed;
  inset:-22%;
  z-index:-2;
  pointer-events:none;
  background:
    radial-gradient(38% 32% at 18% 12%,rgba(255,0,128,.60),transparent 70%),
    radial-gradient(42% 38% at 84% 6%,rgba(255,0,255,.48),transparent 70%),
    radial-gradient(52% 46% at 72% 88%,rgba(255,0,128,.38),transparent 74%),
    radial-gradient(40% 40% at 10% 80%,rgba(255,0,255,.24),transparent 72%),
    conic-gradient(from 210deg at 50% 50%,#26171f,#4b1231,#26171f,#3f104f,#26171f);
  filter:blur(46px) saturate(1.25);
  animation:aurora 26s ease-in-out infinite alternate;
}

body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:radial-gradient(130% 95% at 50% 0%,rgba(38,23,31,.10),rgba(38,23,31,.90) 72%);
}

@keyframes aurora{
  from{transform:translate3d(-3%,-2%,0) scale(1.06) rotate(-2deg)}
  to{transform:translate3d(4%,3%,0) scale(1.18) rotate(5deg)}
}

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

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

/* ---------- 顶栏 ---------- */
.bar{
  position:sticky;
  top:0;
  z-index:50;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  padding:10px clamp(14px,3vw,34px);
  background:rgba(38,23,31,.74);
  backdrop-filter:blur(16px) saturate(1.35);
  -webkit-backdrop-filter:blur(16px) saturate(1.35);
  border-bottom:1px solid rgba(255,0,128,.24);
}

.mark{
  flex:0 0 auto;
  display:flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:var(--r);
  text-decoration:none;
  box-shadow:0 0 0 1px rgba(255,255,255,.14),0 8px 20px -10px rgba(255,0,128,.9);
  transition:transform .25s ease,box-shadow .25s ease;
}
.mark:hover{transform:translateY(-2px) rotate(-4deg);box-shadow:0 0 24px -4px rgba(255,0,255,.8)}
.mark img,.mark svg{width:100%;height:100%;border-radius:var(--r);display:block}

.find{
  order:3;
  flex:1 1 100%;
  display:flex;
  align-items:stretch;
  border:1px solid var(--line);
  border-radius:var(--r);
  background:rgba(255,255,255,.05);
  overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.find:focus-within{border-color:rgba(255,0,128,.7);background:rgba(255,0,128,.10)}
.find input{
  flex:1 1 auto;
  min-width:0;
  min-height:42px;
  padding:8px 12px;
  border:0;
  background:none;
  color:var(--txt);
  font:inherit;
  font-size:16px;
}
.find input::placeholder{color:var(--dim)}
.find input:focus{outline:none}
.find button{
  flex:0 0 auto;
  min-width:48px;
  min-height:42px;
  padding:0 14px;
  border:0;
  background:linear-gradient(120deg,var(--pink),var(--mag));
  color:#fff;
  font:inherit;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  transition:filter .2s ease;
}
.find button:hover{filter:brightness(1.15)}

.topnav{order:2;flex:1 1 200px;min-width:0}
.topnav ul{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0;
  padding:0;
  list-style:none;
  overflow-x:auto;
  scrollbar-width:none;
}
.topnav ul::-webkit-scrollbar{display:none}
.topnav a{
  display:flex;
  align-items:center;
  gap:7px;
  min-height:44px;
  padding:6px 12px;
  border-radius:var(--r);
  color:var(--dim);
  font-size:16px;
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.topnav a:hover{color:#fff;background:rgba(255,0,128,.18)}
.topnav a .ic{
  width:8px;height:8px;
  fill:currentColor;
  opacity:.55;
  transition:transform .25s ease,opacity .25s ease;
}
.topnav a:hover .ic{transform:rotate(90deg) scale(1.35);opacity:1}
.topnav a.on{color:#fff;background:rgba(255,0,255,.20)}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  min-height:calc(100svh - 76px);
  padding:60px 20px 84px;
  text-align:center;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.20) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-mask-image:radial-gradient(72% 62% at 50% 44%,#000,transparent 80%);
  mask-image:radial-gradient(72% 62% at 50% 44%,#000,transparent 80%);
  opacity:.65;
}
.hero-art{
  position:relative;
  width:clamp(84px,16vw,118px);
  height:auto;
  margin-bottom:16px;
  filter:drop-shadow(0 14px 34px rgba(255,0,128,.55));
  animation:float 7s ease-in-out infinite alternate;
}
@keyframes float{
  from{transform:translateY(-6px) rotate(-3deg)}
  to{transform:translateY(8px) rotate(4deg)}
}
.hero h1{
  position:relative;
  margin:0;
  max-width:16em;
  font-size:clamp(2rem,7.2vw,4.3rem);
  line-height:1.14;
  font-weight:700;
  letter-spacing:-.02em;
}
.hero h1 span{
  background:linear-gradient(104deg,#ffffff 8%,#ff9ecd 46%,#ff00ff 92%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cue{
  position:relative;
  margin-top:30px;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:10px 24px;
  border:1px solid rgba(255,255,255,.28);
  border-radius:var(--r);
  color:var(--txt);
  font-size:16px;
  text-decoration:none;
  background:rgba(255,255,255,.05);
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.cue:hover{background:rgba(255,0,128,.24);border-color:rgba(255,0,255,.7);transform:translateY(-2px)}

/* ---------- 版心 ---------- */
.shell{
  display:grid;
  grid-template-columns:212px minmax(0,1fr);
  gap:clamp(18px,3vw,40px);
  align-items:start;
  max-width:var(--wrap);
  margin:0 auto;
  padding:44px clamp(16px,3vw,32px) 60px;
}

.rail{
  position:sticky;
  top:88px;
  padding:14px 10px 14px 0;
  border-right:1px solid rgba(255,255,255,.09);
}
.rail-t{
  margin:0 0 10px 12px;
  font-size:16px;
  font-weight:600;
  letter-spacing:.22em;
  color:var(--dim);
  text-transform:uppercase;
}
.rail-t span{
  background:linear-gradient(96deg,#fff,#ff5cb3);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.rail-nav ul{margin:0;padding:0;list-style:none}
.rail-nav a{
  display:flex;
  align-items:center;
  gap:8px;
  min-height:42px;
  padding:8px 12px;
  border-left:2px solid transparent;
  border-radius:0 var(--r) var(--r) 0;
  color:var(--dim);
  font-size:16px;
  text-decoration:none;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.rail-nav a .ic{width:7px;height:7px;fill:currentColor;opacity:.4}
.rail-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.rail-nav a.on{
  color:#fff;
  border-left-color:var(--pink);
  background:linear-gradient(90deg,rgba(255,0,128,.22),rgba(255,0,255,.04));
}
.rail-nav a.on .ic{opacity:1;fill:var(--pink)}

.main{min-width:0}
.doc{min-width:0}

.doc > article{
  position:relative;
  padding:clamp(22px,3.4vw,42px);
  margin-bottom:clamp(20px,3vw,34px);
  border:1px solid var(--line);
  border-radius:var(--r);
  background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.025));
  box-shadow:var(--shadow);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  scroll-margin-top:96px;
}
.doc > article::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--r);
  pointer-events:none;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
}

.doc h2{
  margin:0 0 18px;
  font-size:clamp(1.34rem,2.6vw,1.92rem);
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.01em;
}
.doc h2::before{
  content:"";
  display:inline-block;
  width:24px;
  height:3px;
  margin-right:12px;
  vertical-align:middle;
  border-radius:2px;
  background:linear-gradient(90deg,var(--pink),var(--mag));
}
.doc h2 > span{
  background:linear-gradient(96deg,#ffffff,#ff9ecd 52%,#ff00ff);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.doc h3{
  margin:26px 0 10px;
  font-size:1.14rem;
  font-weight:600;
  color:#ffd6ea;
}
.doc h3 > span{color:#ffd6ea}

.doc p{margin:0 0 16px}
.doc p:last-child{margin-bottom:0}
.doc a{
  color:#ffa8d4;
  text-decoration:none;
  border-bottom:1px solid rgba(255,0,128,.5);
  transition:color .18s ease,border-color .18s ease;
}
.doc a:hover{color:#fff;border-bottom-color:var(--mag)}
.doc ul,.doc ol{margin:0 0 16px;padding-left:1.25em}
.doc li{margin-bottom:8px}
.doc li::marker{color:var(--pink)}
.doc strong{color:#fff}
.doc blockquote{
  margin:20px 0;
  padding:12px 18px;
  border-left:3px solid var(--mag);
  border-radius:0 var(--r) var(--r) 0;
  background:rgba(255,0,255,.09);
  color:#ffd9ec;
}
.doc blockquote p:last-child{margin-bottom:0}
.doc hr{
  margin:26px 0;
  border:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,0,128,.6),transparent);
}
.doc table{
  width:100%;
  margin:0 0 18px;
  border-collapse:collapse;
  font-size:16px;
}
.doc th,.doc td{
  padding:10px 12px;
  border-bottom:1px solid var(--line);
  text-align:left;
}
.doc th{color:#ffd6ea;font-weight:600}
.doc img{border-radius:var(--r);margin:0 0 16px}

.totop{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:10px 22px;
  border:1px solid var(--line);
  border-radius:var(--r);
  background:rgba(255,255,255,.05);
  color:var(--dim);
  font-size:16px;
  text-decoration:none;
  transition:color .2s ease,background .2s ease;
}
.totop:hover{color:#fff;background:rgba(255,0,128,.22)}

/* ---------- 页脚 ---------- */
.foot{
  margin-top:24px;
  padding:clamp(28px,4vw,56px) clamp(16px,3vw,32px) 22px;
  border-top:1px solid rgba(255,0,128,.28);
  background:linear-gradient(180deg,rgba(255,0,128,.09),rgba(38,23,31,.94));
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:clamp(20px,3vw,36px);
  max-width:var(--wrap);
  margin:0 auto;
}

.cta{
  padding:22px;
  border:1px solid rgba(255,0,255,.32);
  border-radius:var(--r);
  background:
    radial-gradient(120% 130% at 0% 0%,rgba(255,0,128,.32),transparent 65%),
    rgba(255,255,255,.04);
}
.cta-t{
  margin:0 0 16px;
  font-size:clamp(1.3rem,3vw,1.85rem);
  line-height:1.25;
  font-weight:700;
}
.cta-t span{
  background:linear-gradient(96deg,#fff,#ff4fb0 60%,#ff00ff);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cta-btn{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:10px 24px;
  border-radius:var(--r);
  background:linear-gradient(120deg,var(--pink),var(--mag));
  color:#fff;
  font-size:16px;
  font-weight:600;
  text-decoration:none;
  box-shadow:0 14px 28px -16px rgba(255,0,255,.95);
  transition:transform .2s ease,filter .2s ease;
}
.cta-btn:hover{transform:translateY(-2px);filter:brightness(1.12)}

.foot dl{margin:0}
.foot dt{
  margin-bottom:8px;
  font-size:16px;
  font-weight:600;
  letter-spacing:.16em;
  color:#ffb3d9;
}
.foot dd{margin:0}
.foot dd a{
  display:flex;
  align-items:center;
  min-height:40px;
  padding:4px 0;
  color:var(--dim);
  font-size:16px;
  text-decoration:none;
  transition:color .2s ease,transform .2s ease;
}
.foot dd a:hover{color:#fff;transform:translateX(3px)}

.base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  max-width:var(--wrap);
  margin:26px auto 0;
  padding-top:16px;
  border-top:1px solid var(--line);
}
.base p{margin:0;color:var(--dim);font-size:16px}
.base-links{display:flex;gap:6px;margin:0;padding:0;list-style:none}
.base-links a{
  display:flex;
  align-items:center;
  min-height:40px;
  padding:4px 12px;
  border-radius:var(--r);
  color:var(--dim);
  font-size:16px;
  text-decoration:none;
  transition:color .2s ease,background .2s ease;
}
.base-links a:hover{color:#fff;background:rgba(255,0,128,.2)}

/* ---------- 滚动出现 ---------- */
.rv{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}

/* ---------- 断点 ---------- */
@media (min-width:760px){
  .find{order:2;flex:0 0 auto}
  .topnav{order:3}
}

@media (max-width:900px){
  .shell{grid-template-columns:minmax(0,1fr);padding-top:28px}
  .rail{
    position:static;
    padding:0 0 6px;
    border-right:0;
    border-bottom:1px solid rgba(255,255,255,.09);
  }
  .rail-t{margin-left:0}
  .rail-nav ul{display:flex;gap:6px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
  .rail-nav ul::-webkit-scrollbar{display:none}
  .rail-nav li{flex:0 0 auto}
  .rail-nav a{
    border-left:0;
    border-bottom:2px solid transparent;
    border-radius:var(--r) var(--r) 0 0;
    padding:8px 12px;
    background:rgba(255,255,255,.04);
  }
  .rail-nav a.on{border-bottom-color:var(--pink);background:rgba(255,0,128,.2)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta{grid-column:1 / -1}
}

@media (max-width:560px){
  body{font-size:16px}
  .hero{min-height:calc(100svh - 118px);padding-top:44px}
  .foot-grid{grid-template-columns:1fr}
  .base{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  body::before,.hero-art{animation:none}
  .rv{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms!important}
}

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