@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,400;0,600;0,700;0,800;1,400&display=swap');

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

:root{
  --pink:#ff0080;
  --magenta:#ff00ff;
  --ink:#26171f;
  --deep:#180d14;
  --text:#e9d7e3;
  --soft:#f6eaf2;
  --muted:#c9aec0;
  --line:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.06);
  --r:28px;
}

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

body{
  margin:0;
  min-height:100vh;
  width:100%;
  max-width:100%;
  overflow-x:clip;
  background:var(--deep);
  color:var(--text);
  font-family:"Plus Jakarta Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.7;
  overflow-wrap:break-word;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto}

a{color:#ff9ecb}

:focus-visible{
  outline:2px solid var(--magenta);
  outline-offset:3px;
  border-radius:8px;
}

/* ---------- 极光底层 ---------- */
.aurora{
  position:fixed;
  inset:-25% -12%;
  z-index:-1;
  pointer-events:none;
  filter:blur(38px) saturate(140%);
  mix-blend-mode:screen;
  background:
    radial-gradient(38% 42% at 18% 24%,rgba(255,0,128,.55),transparent 68%),
    radial-gradient(34% 36% at 84% 18%,rgba(255,0,255,.46),transparent 70%),
    radial-gradient(46% 48% at 62% 82%,rgba(128,44,255,.42),transparent 70%),
    radial-gradient(30% 32% at 10% 78%,rgba(255,90,170,.32),transparent 72%);
  animation:drift 24s ease-in-out infinite alternate;
}

.aurora i{
  position:absolute;
  display:block;
  border-radius:50%;
  opacity:.55;
}

.aurora .a1{
  width:46vmax;height:46vmax;left:-6vw;top:6vh;
  background:radial-gradient(circle at 40% 40%,rgba(255,0,255,.55),transparent 66%);
  animation:float 17s ease-in-out infinite alternate;
}

.aurora .a2{
  width:34vmax;height:34vmax;right:-4vw;top:34vh;
  background:radial-gradient(circle at 50% 50%,rgba(255,0,128,.5),transparent 64%);
  animation:float2 21s ease-in-out infinite alternate;
}

.aurora .a3{
  width:40vmax;height:40vmax;left:34vw;bottom:-10vh;
  background:radial-gradient(circle at 50% 50%,rgba(90,90,255,.42),transparent 66%);
  animation:hue 29s linear infinite;
}

@keyframes drift{
  from{transform:translate3d(-2%,-1%,0) scale(1)}
  to{transform:translate3d(2%,2%,0) scale(1.08)}
}

@keyframes float{
  from{transform:translate3d(0,0,0)}
  to{transform:translate3d(6vw,5vh,0)}
}

@keyframes float2{
  from{transform:translate3d(0,0,0)}
  to{transform:translate3d(-7vw,-4vh,0)}
}

@keyframes hue{
  from{filter:hue-rotate(0deg)}
  to{filter:hue-rotate(360deg)}
}

/* ---------- 顶部 ---------- */
.masthead{
  position:relative;
  z-index:6;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:6px;
  padding:10px 14px 8px;
  background:linear-gradient(180deg,rgba(24,13,20,.94),rgba(24,13,20,.6));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px);
}

.masthead > *{
  width:100%;
  min-width:0;
  max-width:1180px;
  margin-inline:auto;
}

.bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  min-width:0;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  max-width:100%;
  padding:4px 2px;
  color:#fff;
  font-weight:800;
  font-size:18px;
  letter-spacing:.01em;
  text-decoration:none;
  overflow-wrap:anywhere;
}

.brandmark{
  width:36px;
  height:36px;
  flex:0 0 auto;
  border-radius:12px;
  object-fit:cover;
  border:1px solid rgba(255,255,255,.28);
}

.call{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:0 20px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.22);
  background:linear-gradient(120deg,rgba(255,0,128,.9),rgba(255,0,255,.9));
  color:#fff;
  font-weight:700;
  font-size:16px;
  text-decoration:none;
  box-shadow:0 6px 22px rgba(255,0,128,.32);
}

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

.pills{min-width:0;max-width:100%}

.pills ul{
  display:flex;
  gap:8px;
  max-width:100%;
  margin:0;
  padding:2px 0 6px;
  list-style:none;
  overflow-x:auto;
  overscroll-behavior-x:contain;
  scrollbar-width:none;
}

.pills ul::-webkit-scrollbar{display:none}

.pills li{flex:0 0 auto}

.pills a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:#f7e7f1;
  font-size:16px;
  white-space:nowrap;
  text-decoration:none;
  backdrop-filter:blur(10px);
  transition:background .25s,color .25s,border-color .25s;
}

.pills a:hover,
.pills a.on{
  background:linear-gradient(120deg,var(--pink),var(--magenta));
  border-color:transparent;
  color:#fff;
}

/* ---------- 骨架 ---------- */
.frame{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:16px;
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:12px 14px 10px;
}

.frame > *{min-width:0;max-width:100%}

.rail{
  display:block;
  min-width:0;
  max-width:100%;
  padding:2px 0;
}

.rail small{
  display:none;
}

.rail h2{
  display:none;
}

.railist{
  display:flex;
  gap:8px;
  max-width:100%;
  margin:0;
  padding:0 0 4px;
  list-style:none;
  overflow-x:auto;
  overscroll-behavior-x:contain;
  scrollbar-width:none;
}

.railist::-webkit-scrollbar{display:none}

.railist li{flex:0 0 auto}

.railist a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  color:#dbc4d3;
  font-size:15px;
  white-space:nowrap;
  text-decoration:none;
}

.railist a:hover{color:#fff;border-color:rgba(255,0,128,.6)}

.prose{
  min-width:0;
  max-width:100%;
}

.prose div{scroll-margin-top:140px}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  display:grid;
  justify-items:center;
  align-content:center;
  gap:16px;
  min-height:70vh;
  max-width:100%;
  padding:30px 0 46px;
  text-align:center;
}

.hero h1{
  max-width:100%;
  margin:0;
  font-size:clamp(34px,8.6vw,76px);
  line-height:1.05;
  letter-spacing:-.015em;
  font-weight:800;
  color:#fff;
  overflow-wrap:anywhere;
  background:linear-gradient(104deg,#ffffff 8%,#ffc2e2 42%,#ff3fa8 68%,#ff00ff 96%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  filter:drop-shadow(0 8px 34px rgba(255,0,128,.35));
}

.lede{
  max-width:31em;
  margin:0;
  color:#e8d0df;
  font-size:17px;
}

.orbits{
  position:relative;
  width:min(100%,420px);
  max-width:100%;
  aspect-ratio:16/6;
  margin:4px 0 0;
  display:grid;
  place-items:center;
}

.orb{
  position:absolute;
  display:block;
  border-radius:50%;
  filter:blur(1px);
  mix-blend-mode:screen;
}

.o1{
  width:104px;height:104px;left:2%;top:0;
  background:radial-gradient(circle at 32% 30%,rgba(255,0,128,.95),transparent 68%);
  animation:float 11s ease-in-out infinite alternate;
}

.o2{
  width:78px;height:78px;right:8%;top:12%;
  background:radial-gradient(circle at 50% 50%,rgba(255,0,255,.9),transparent 66%);
  animation:float2 13s ease-in-out infinite alternate;
}

.o3{
  width:60px;height:60px;left:44%;bottom:2%;
  background:radial-gradient(circle at 50% 50%,rgba(255,150,220,.8),transparent 66%);
  animation:float 9s ease-in-out infinite alternate;
}

.orbits figcaption{
  position:relative;
  font-size:13px;
  letter-spacing:.34em;
  color:#ffb3d8;
  text-transform:uppercase;
}

/* ---------- 正文 ---------- */
.prose > div{
  max-width:100%;
  padding:26px 0;
  border-top:1px solid rgba(255,255,255,.09);
}

.prose > div:last-child{padding-bottom:44px}

.prose h2{
  margin:0 0 12px;
  font-size:clamp(22px,3.6vw,30px);
  line-height:1.26;
  font-weight:800;
  color:#fff;
  letter-spacing:-.01em;
  overflow-wrap:anywhere;
}

.prose h2 small,
.prose h3 small{
  display:block;
  margin-bottom:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.2em;
  color:#ff7fbf;
}

.prose h3{
  margin:24px 0 8px;
  font-size:19px;
  line-height:1.4;
  color:#ffdcee;
  overflow-wrap:anywhere;
}

.prose p{margin:0 0 14px;color:#e6d3df;max-width:100%}

.prose div > *:first-child{margin-top:0}
.prose div > *:last-child{margin-bottom:0}

.prose ul,
.prose ol{
  max-width:100%;
  margin:0 0 16px;
  padding-left:1.25em;
  color:#e6d3df;
}

.prose li{margin:6px 0;overflow-wrap:break-word}

.prose li::marker{color:#ff5faf}

.prose strong{color:#fff}

.prose a{
  color:#ffa3cd;
  text-underline-offset:3px;
  overflow-wrap:anywhere;
}

.prose blockquote{
  max-width:100%;
  margin:18px 0;
  padding:14px 18px;
  border-left:3px solid var(--pink);
  border-radius:0 18px 18px 0;
  background:rgba(255,255,255,.05);
  color:#f0dbe7;
}

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

.prose figure{
  max-width:100%;
  margin:20px 0;
}

.prose figure img{border-radius:22px}

.prose figcaption{
  margin-top:8px;
  font-size:14px;
  color:var(--muted);
  text-align:center;
}

.prose img{border-radius:18px;display:block;max-width:100%;height:auto}

.prose table{
  width:100%;
  max-width:100%;
  margin:16px 0;
  border-collapse:collapse;
  font-size:16px;
  display:block;
  overflow-x:auto;
  overscroll-behavior-x:contain;
}

.prose th,
.prose td{
  border:1px solid var(--line);
  padding:10px 12px;
  text-align:left;
  vertical-align:top;
  overflow-wrap:break-word;
}

.prose th{background:rgba(255,0,128,.16);color:#fff;white-space:nowrap}

.prose pre{
  max-width:100%;
  margin:16px 0;
  padding:14px 16px;
  border-radius:18px;
  background:rgba(255,255,255,.08);
  overflow-x:auto;
  overscroll-behavior-x:contain;
}

.prose hr{
  border:0;
  border-top:1px solid var(--line);
  margin:26px 0;
}

.prose code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:.92em;
  padding:1px 6px;
  border-radius:6px;
  background:rgba(255,255,255,.1);
}

/* ---------- 页脚 ---------- */
.foot{
  width:100%;
  max-width:100%;
  margin-top:8px;
  padding:28px 14px 34px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.05),transparent 70%);
  overflow-x:clip;
}

.fcols{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:22px;
  width:100%;
  max-width:1180px;
  margin:0 auto;
}

.fcols > *{min-width:0}

.fabout address{
  display:block;
  margin-bottom:14px;
  font-style:normal;
  font-size:20px;
  font-weight:800;
  color:#fff;
  overflow-wrap:anywhere;
}

.fnav{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  max-width:100%;
  margin:0;
  padding:0;
  list-style:none;
}

.fnav a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:#e2cada;
  font-size:15px;
  text-decoration:none;
}

.fnav a:hover{color:#fff;border-color:rgba(255,0,255,.6)}

.fsub{
  min-width:0;
  max-width:100%;
  padding:18px;
  border-radius:var(--r);
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.07);
  backdrop-filter:blur(14px);
  box-shadow:0 18px 50px rgba(0,0,0,.3);
}

.fsub label{
  display:block;
  margin-bottom:10px;
  font-size:14px;
  letter-spacing:.12em;
  color:#ffb3d8;
}

.subrow{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  min-width:0;
  max-width:100%;
}

.subrow input{
  flex:1 1 130px;
  width:100%;
  min-width:0;
  max-width:100%;
  min-height:46px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.2);
  background:rgba(20,10,16,.55);
  color:#fff;
  font:inherit;
  font-size:16px;
}

.subrow input::placeholder{color:#a98d9e}

.subrow button{
  flex:0 0 auto;
  min-height:46px;
  padding:0 24px;
  border:0;
  border-radius:999px;
  background:linear-gradient(120deg,var(--pink),var(--magenta));
  color:#fff;
  font:inherit;
  font-weight:800;
  cursor:pointer;
  box-shadow:0 8px 24px rgba(255,0,128,.34);
}

.subrow button:hover{filter:brightness(1.1)}

.fbar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  width:100%;
  max-width:1180px;
  margin:22px auto 0;
  padding-top:14px;
  border-top:1px solid var(--line);
}

.fbar p{margin:0;font-size:14px;color:#bfa6b6;overflow-wrap:anywhere}

.fmini{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  max-width:100%;
  margin:0;
  padding:0;
  list-style:none;
}

.fmini a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  font-size:14px;
  color:#cbb4c3;
  text-decoration:none;
}

.fmini a:hover{color:#fff}

/* ---------- 入场 ---------- */
.js .prose > div,
.js .reveal{
  opacity:0;
  transform:translate3d(0,16px,0);
}

.js .prose > div.in,
.js .reveal.in{
  opacity:1;
  transform:none;
  transition:opacity .6s ease,transform .65s cubic-bezier(.2,.7,.2,1);
}

.js .fnav li:nth-child(2){transition-delay:.06s}
.js .fnav li:nth-child(3){transition-delay:.12s}
.js .fnav li:nth-child(4){transition-delay:.18s}

/* ---------- 窄屏微调 ---------- */
@media (max-width:479px){
  .masthead{padding:10px 12px 8px}
  .frame{padding:10px 12px 8px}
  .foot{padding:24px 12px 30px}
  .fsub{padding:14px}
  .subrow input{flex:1 1 100%}
  .subrow button{flex:1 1 100%}
  .orbits{aspect-ratio:auto;min-height:110px}
  .o1{width:78px;height:78px}
  .o2{width:58px;height:58px}
  .o3{width:46px;height:46px}
  .orbits figcaption{letter-spacing:.22em;font-size:12px}
}

/* ---------- 宽屏 ---------- */
@media (min-width:760px){
  .fcols{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:36px}
  body{font-size:18px}
}

@media (min-width:900px){
  .masthead{
    position:sticky;
    top:0;
    padding:14px 26px 10px;
  }

  .pills ul{
    flex-wrap:wrap;
    justify-content:center;
    overflow:visible;
    padding-bottom:4px;
  }

  .frame{
    grid-template-columns:206px minmax(0,1fr);
    gap:38px;
    padding:34px 26px 30px;
    align-items:start;
  }

  .rail{
    position:sticky;
    top:132px;
    padding:8px 0;
    border-radius:var(--r);
    border:1px solid rgba(255,255,255,.1);
    background:rgba(255,255,255,.045);
    backdrop-filter:blur(12px);
  }

  .rail small{
    display:block;
    margin:14px 16px 4px;
    font-size:12px;
    letter-spacing:.22em;
    color:#ff8ac4;
  }

  .rail h2{
    display:block;
    margin:0 16px 12px;
    font-size:15px;
    letter-spacing:.16em;
    font-weight:700;
    color:var(--soft);
  }

  .railist{
    flex-direction:column;
    overflow:visible;
    padding:0 0 14px;
    gap:2px;
  }

  .railist li{flex:0 0 auto;width:100%}

  .railist a{
    width:100%;
    min-height:42px;
    border-radius:0;
    border:0;
    border-left:2px solid rgba(255,255,255,.14);
    background:none;
    padding:0 14px;
    font-size:15px;
    white-space:normal;
  }

  .railist a:hover,
  .railist a.on{
    border-left-color:var(--pink);
    color:#fff;
    background:linear-gradient(90deg,rgba(255,0,128,.18),transparent);
  }

  .hero{min-height:74vh}
}

@media (min-width:1140px){
  .hero h1{letter-spacing:-.025em}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .aurora,
  .aurora i,
  .orb{animation:none}
  .js .prose > div,
  .js .reveal{opacity:1;transform:none;transition:none}
}

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