:root{
  --bg: #0b1020;
  --bg2:#060915;
  --card:#0e1632;
  --card2:#0d142d;
  --text:#eaf0ff;
  --muted:#a9b6de;
  --line: rgba(255,255,255,.10);
  --shadow: 0 18px 60px rgba(0,0,0,.45);
  --primary:#7c5cff;
  --primary2:#20d3ff;
  --danger:#ff4d6d;
  --ok:#34d399;
  --radius: 18px;
  --container: 1120px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

@media (prefers-color-scheme: light){
  :root{
    --bg:#f7f8ff;
    --bg2:#ffffff;
    --card:#ffffff;
    --card2:#f2f4ff;
    --text:#0b1220;
    --muted:#4b5a86;
    --line: rgba(11,18,32,.10);
    --shadow: 0 18px 60px rgba(11,18,32,.14);
    --primary:#6d5cff;
    --primary2:#00b8ff;
  }
}

[data-theme="dark"]{
  --bg: #0b1020;
  --bg2:#060915;
  --card:#0e1632;
  --card2:#0d142d;
  --text:#eaf0ff;
  --muted:#a9b6de;
  --line: rgba(255,255,255,.10);
  --shadow: 0 18px 60px rgba(0,0,0,.45);
  --primary:#7c5cff;
  --primary2:#20d3ff;
}

[data-theme="light"]{
  --bg:#f7f8ff;
  --bg2:#ffffff;
  --card:#ffffff;
  --card2:#f2f4ff;
  --text:#0b1220;
  --muted:#4b5a86;
  --line: rgba(11,18,32,.10);
  --shadow: 0 18px 60px rgba(11,18,32,.14);
  --primary:#6d5cff;
  --primary2:#00b8ff;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background: radial-gradient(1200px 700px at 20% 0%, rgba(124,92,255,.22), transparent 60%),
              radial-gradient(900px 600px at 90% 10%, rgba(32,211,255,.18), transparent 55%),
              linear-gradient(180deg, var(--bg2), var(--bg));
  line-height:1.55;
}

a{ color:inherit; text-decoration:none; }
a:hover{ opacity:.95; }

.container{
  width:min(var(--container), calc(100% - 40px));
  margin-inline:auto;
}

.skip-link{
  position:absolute;
  left:-999px;
  top:12px;
  background:var(--card);
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:12px;
  z-index:1000;
}
.skip-link:focus{ left:12px; }

.header{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter:saturate(1.2) blur(10px);
  background: color-mix(in oklab, var(--bg2) 70%, transparent);
  border-bottom:1px solid var(--line);
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 0;
  gap:16px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width: 160px;
}
.brand__mark{
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
}
.logo__bg{ fill: color-mix(in oklab, var(--primary) 45%, var(--card)); }
.logo__core{ fill: color-mix(in oklab, var(--primary2) 65%, var(--primary)); }
.brand__text{
  font-weight:720;
  letter-spacing:.2px;
}

.nav{
  display:flex;
  gap:18px;
  flex-wrap:wrap;
}
.nav a{
  padding:8px 10px;
  border-radius:12px;
  color:var(--muted);
}
.nav a:hover{
  color:var(--text);
  background: color-mix(in oklab, var(--card) 65%, transparent);
  border:1px solid var(--line);
}

.header__actions{
  display:flex;
  gap:10px;
  align-items:center;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border-radius:14px;
  padding:11px 14px;
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 70%, transparent);
  color:var(--text);
  box-shadow: none;
  transition: transform .08s ease, background .2s ease, border-color .2s ease;
  cursor:pointer;
  font-weight:650;
}
.btn:active{ transform: translateY(1px); }
.btn--primary{
  border-color: color-mix(in oklab, var(--primary) 40%, var(--line));
  background: linear-gradient(135deg, color-mix(in oklab, var(--primary) 85%, #0000), color-mix(in oklab, var(--primary2) 85%, #0000));
  box-shadow: 0 18px 50px rgba(124,92,255,.25);
}
.btn--ghost{
  background: transparent;
}
.btn--small{
  padding:9px 12px;
  border-radius:12px;
  font-weight:640;
}

.hero{
  position:relative;
  padding:72px 0 42px;
  overflow:hidden;
}
.hero__inner{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:26px;
  align-items:start;
}
.hero__bg{
  position:absolute;
  inset:-240px -240px auto -240px;
  height:600px;
  background: radial-gradient(closest-side, rgba(124,92,255,.22), transparent 60%);
  filter: blur(10px);
  pointer-events:none;
}

.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card2) 70%, transparent);
  color:var(--muted);
  font-weight:650;
  font-size:13px;
}

.hero__title{
  margin:14px 0 10px;
  font-size: clamp(34px, 5vw, 54px);
  line-height:1.08;
  letter-spacing:-.02em;
}
.grad{
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero__subtitle{
  margin:0 0 18px;
  color:var(--muted);
  font-size: 16px;
  max-width: 60ch;
}
.hero__cta{ display:flex; gap:12px; flex-wrap:wrap; }

.hero__meta{
  margin-top:16px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--card) 68%, transparent);
  color:var(--muted);
  font-weight:600;
  font-size:13px;
}
.pill__dot{
  width:10px;height:10px;border-radius:999px;
  background: var(--ok);
  box-shadow: 0 0 0 5px color-mix(in oklab, var(--ok) 20%, transparent);
}

.hero__card{ position:sticky; top:88px; }
.glass{
  border-radius: var(--radius);
  border:1px solid var(--line);
  background: linear-gradient(180deg, color-mix(in oklab, var(--card) 78%, transparent), color-mix(in oklab, var(--card2) 72%, transparent));
  box-shadow: var(--shadow);
  padding:18px;
}
.glass__top{
  display:flex; align-items:center; justify-content:space-between;
  gap:12px;
  margin-bottom:12px;
}
.status{ display:inline-flex; align-items:center; gap:8px; color:var(--muted); font-weight:650; }
.status__dot{ width:10px;height:10px;border-radius:999px; background: var(--ok); }
.chip{
  font-size:12px;
  font-weight:700;
  padding:6px 10px;
  border:1px solid var(--line);
  border-radius:999px;
  color:var(--muted);
  background: color-mix(in oklab, var(--card) 70%, transparent);
}
.glass__title{ margin:0 0 8px; font-size:20px; letter-spacing:-.01em; }
.glass__desc{ margin:0 0 14px; color:var(--muted); }
.glass__grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:10px;
  margin-bottom:12px;
}
.stat{
  border:1px solid var(--line);
  border-radius:14px;
  padding:10px 12px;
  background: color-mix(in oklab, var(--card) 64%, transparent);
}
.stat__k{ color:var(--muted); font-weight:650; font-size:12px; }
.stat__v{ font-weight:760; font-size:16px; margin-top:4px; }
.link{
  color: color-mix(in oklab, var(--primary2) 75%, var(--text));
  font-weight:700;
}
.link:hover{ text-decoration: underline; text-underline-offset: 3px; }

.section{
  padding:56px 0;
}
.section--alt{
  background: linear-gradient(180deg, transparent, color-mix(in oklab, var(--card2) 35%, transparent), transparent);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section__head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:18px;
  flex-wrap:wrap;
}
.section__head h2{
  margin:0;
  font-size: 28px;
  letter-spacing:-.02em;
}
.section__head p{
  margin:0;
  color:var(--muted);
  max-width: 70ch;
}

.cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.card{
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--card) 76%, transparent);
  padding:18px;
  box-shadow: 0 10px 40px rgba(0,0,0,.18);
}
.card h3{ margin:0 0 8px; font-size:18px; }
.card p{ margin:0 0 12px; color:var(--muted); }
.list{
  margin:0 0 14px;
  padding-left: 18px;
  color:var(--muted);
}
.list li{ margin:8px 0; }

.features{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:12px;
}
.feature{
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--card) 74%, transparent);
  padding:16px;
}
.feature__icon{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:14px;
  border:1px solid var(--line);
  background: linear-gradient(135deg, color-mix(in oklab, var(--primary) 25%, transparent), color-mix(in oklab, var(--primary2) 25%, transparent));
  margin-bottom:10px;
}
.feature h3{ margin:0 0 6px; }
.feature p{ margin:0; color:var(--muted); }

.about{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:14px;
}
.about__panel{
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--card) 76%, transparent);
  padding:18px;
}
.about__panel h3{ margin:0 0 8px; }
.about__panel p{ margin:0; color:var(--muted); }

.contact{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:14px;
  align-items:start;
}
.form{
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--card) 76%, transparent);
  padding:18px;
}
.form__row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:12px;
}
label{ display:grid; gap:8px; margin-bottom:12px; }
label span{ color:var(--muted); font-weight:700; font-size:13px; }
input, textarea{
  width:100%;
  font: inherit;
  color:var(--text);
  padding:12px 12px;
  border-radius:14px;
  border:1px solid var(--line);
  background: color-mix(in oklab, var(--bg2) 50%, transparent);
  outline:none;
}
input:focus, textarea:focus{
  border-color: color-mix(in oklab, var(--primary2) 45%, var(--line));
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--primary2) 18%, transparent);
}
.form__actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.form__hint{
  margin:0;
  color:var(--muted);
  font-size:13px;
}

.contact__side{ display:grid; gap:12px; }
.sidecard{
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--card) 76%, transparent);
  padding:18px;
}
.sidecard--muted{
  background: color-mix(in oklab, var(--card2) 72%, transparent);
}
.sidecard h3{ margin:0 0 10px; }
.sidecard p{ margin:0 0 12px; color:var(--muted); }
.sidecard__links{ display:flex; gap:10px; flex-wrap:wrap; }
.steps{
  margin:0;
  padding-left: 18px;
  color:var(--muted);
}
.steps li{ margin:8px 0; }

.footer{
  border-top:1px solid var(--line);
  padding:22px 0;
  background: color-mix(in oklab, var(--bg2) 65%, transparent);
}
.footer__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  color:var(--muted);
}
.footer__left, .footer__right{ display:flex; gap:10px; align-items:center; flex-wrap:wrap; }
.sep{ opacity:.6; }

@media (max-width: 980px){
  .hero__inner{ grid-template-columns: 1fr; }
  .hero__card{ position:relative; top:auto; }
  .cards{ grid-template-columns: 1fr; }
  .features{ grid-template-columns: 1fr 1fr; }
  .about{ grid-template-columns: 1fr; }
  .contact{ grid-template-columns: 1fr; }
  .form__row{ grid-template-columns: 1fr; }
  .nav{ display:none; }
}

@media (prefers-reduced-motion: reduce){
  *{ scroll-behavior:auto !important; transition:none !important; }
}