:root{
  --ink:#0E141B;
  --ink2:#39434E;
  --muted:#6C7A87;
  --brand:#4338CA;
  --brand2:#6C5CE7;
  --mint:#08A47C;
  --bg:#F5F6FB;
  --surface:#FFFFFF;
  --line:#E3E8F3;
  --soft:#EEF0FB;
  --warn:#D97706;
  --wrap:1180px;
  --r:18px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.72;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
svg{display:block;max-width:100%}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,246,251,.84);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.02em;flex:none}
.logo-mark{width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--mint));display:grid;place-items:center;flex:none}
.logo-mark svg{width:15px;height:15px}
.logo em{font-style:normal;font-weight:600;font-size:11.5px;color:var(--muted);letter-spacing:.06em;margin-left:2px;padding:2px 7px;border:1px solid var(--line);border-radius:999px}
.nav{display:flex;gap:2px;margin-left:auto}
.nav a{padding:8px 13px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--ink2);transition:.18s}
.nav a:hover{background:var(--soft);color:var(--brand)}
.nav-cta{
  flex:none;padding:9px 18px;border-radius:11px;font-size:14px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 6px 18px -8px rgba(67,56,202,.9);
  transition:.2s;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 24px -10px rgba(67,56,202,.95)}
.nav-toggle{display:none;margin-left:auto;width:40px;height:40px;border-radius:11px;border:1px solid var(--line);background:#fff;font-size:17px;cursor:pointer}
@media(max-width:980px){
  .nav{
    position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);padding:12px 20px 18px;
    display:none;
  }
  .nav.open{display:flex}
  .nav a{padding:11px 12px;font-size:15px}
  .nav-cta{display:none}
  .nav-toggle{display:block}
}

/* ---------- hero ---------- */
.hero{padding:64px 0 12px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-180px -10% auto auto;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(67,56,202,.10),transparent 65%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1fr 1.02fr;gap:48px;align-items:center;position:relative}
@media(max-width:1000px){.hero-grid{grid-template-columns:1fr;gap:36px}}

.kicker{
  display:inline-flex;align-items:center;gap:8px;margin:0 0 18px;
  font-size:12.5px;font-weight:700;letter-spacing:.06em;color:var(--brand);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(8,164,124,.16);animation:bp 2s infinite}
@keyframes bp{0%,100%{box-shadow:0 0 0 3px rgba(8,164,124,.18)}50%{box-shadow:0 0 0 7px rgba(8,164,124,.05)}}

.hero h1{
  margin:0 0 20px;font-size:clamp(34px,4.6vw,54px);line-height:1.14;
  letter-spacing:-.035em;font-weight:860;
}
.hero h1 .hl{
  background:linear-gradient(115deg,var(--brand) 10%,var(--mint) 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .lead{margin:0 0 28px;font-size:16.5px;color:var(--ink2);max-width:560px}
.hero .lead strong{color:var(--ink);font-weight:700}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 24px;border-radius:13px;font-size:15px;font-weight:700;transition:.2s}
.btn-main{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 30px -14px rgba(67,56,202,.95)}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 20px 36px -16px rgba(67,56,202,1)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.chips a{
  display:inline-block;padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:var(--ink2);background:#fff;border:1px solid var(--line);transition:.18s;
}
.chips a:hover{color:var(--brand);border-color:rgba(67,56,202,.4);background:var(--soft)}

.hero-scene{position:relative}
.scene{width:100%;height:auto}
.chip-a{font:800 15px/1 inherit;fill:#fff;letter-spacing:.18em}
.chip-b{font:600 13.5px/1 inherit;fill:rgba(255,255,255,.82)}
.node-body{fill:#fff;stroke:var(--line);stroke-width:1.6;transition:.2s}
.node-t{font:800 17px/1 inherit;fill:var(--ink)}
.node-s{font:500 12.5px/1 inherit;fill:var(--muted)}
.node-arrow{fill:none;stroke:var(--muted);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:.2s}
.node:hover .node-body{stroke:var(--brand);filter:drop-shadow(0 10px 22px rgba(67,56,202,.16))}
.node:hover .node-arrow{stroke:var(--brand);transform:translateX(3px)}
.node:hover .node-t{fill:var(--brand)}
.rail{fill:none;stroke:#C9D3E9;stroke-width:2.4;stroke-linecap:round}
.chip-glow{animation:glow 3.6s ease-in-out infinite}
@keyframes glow{0%,100%{opacity:1}50%{opacity:.35}}

.scene-mini{display:none}
@media(max-width:620px){
  .scene{display:none}
  .scene-mini{display:block}
  .mini-core{
    display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:12px;
    background:linear-gradient(135deg,var(--brand),var(--mint));color:#fff;font-weight:800;font-size:14px;
    letter-spacing:.1em;margin-bottom:14px;
  }
  .mini-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
  .mini-list a{
    display:flex;justify-content:space-between;align-items:center;
    background:#fff;border:1px solid var(--line);border-radius:13px;padding:13px 16px;
    font-weight:700;font-size:15px;
  }
  .mini-list a span{font-weight:500;font-size:12.5px;color:var(--muted)}
}

/* ---------- ticker ---------- */
.ticker{
  margin:34px 0 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:#fff;overflow:hidden;
}
.ticker-in{display:flex;gap:44px;padding:13px 24px;white-space:nowrap;animation:slide 34s linear infinite;width:max-content}
.ticker span{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.02em;display:inline-flex;align-items:center;gap:9px}
.ticker span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);flex:none}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- sections ---------- */
.sec{padding:78px 0}
.sec-tint{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  margin:0 0 14px;font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--brand);
  text-transform:uppercase;
}
.sec-title{margin:0 0 16px;font-size:clamp(26px,3.1vw,36px);line-height:1.24;letter-spacing:-.028em;font-weight:820}
.sec-lead{margin:0 0 40px;font-size:16px;color:var(--muted);max-width:760px}

/* ---------- board / tabs ---------- */
.board{display:grid;grid-template-columns:268px 1fr;gap:34px;align-items:start}
@media(max-width:900px){.board{grid-template-columns:1fr;gap:22px}}
.board-tabs{display:grid;gap:8px;position:sticky;top:92px}
@media(max-width:900px){
  .board-tabs{position:static;grid-auto-flow:column;grid-auto-columns:max-content;overflow-x:auto;padding-bottom:6px}
}
.tab{
  display:flex;align-items:center;gap:13px;width:100%;text-align:left;cursor:pointer;
  padding:14px 16px;border-radius:14px;border:1px solid var(--line);background:#fff;
  font-family:inherit;font-size:15px;font-weight:700;color:var(--ink2);transition:.2s;
}
.tab:hover{border-color:rgba(67,56,202,.35)}
.tab[aria-selected="true"]{
  background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;border-color:transparent;
  box-shadow:0 14px 28px -16px rgba(67,56,202,1);
}
.tab-no{
  font-size:11.5px;font-weight:800;letter-spacing:.08em;padding:3px 8px;border-radius:7px;
  background:var(--soft);color:var(--brand);flex:none;
}
.tab[aria-selected="true"] .tab-no{background:rgba(255,255,255,.22);color:#fff}
@media(max-width:900px){.tab{white-space:nowrap}}

.panel{
  background:#fff;border:1px solid var(--line);border-radius:22px;padding:38px 40px;
  min-height:340px;box-shadow:0 26px 60px -46px rgba(14,20,27,.5);
}
@media(max-width:600px){.panel{padding:26px 22px}}
.panel-tag{
  display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.12em;color:var(--mint);
  border:1px solid rgba(8,164,124,.3);background:rgba(8,164,124,.07);border-radius:7px;padding:4px 10px;margin-bottom:18px;
}
.panel h3{margin:0 0 16px;font-size:22px;line-height:1.4;letter-spacing:-.02em;font-weight:800}
.panel p{margin:0 0 14px;color:var(--ink2);font-size:15.5px}
.panel p:last-child{margin-bottom:0}

/* ---------- platform grid ---------- */
.plat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:920px){.plat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.plat-grid{grid-template-columns:1fr}}
.plat-card{
  display:flex;flex-direction:column;gap:8px;padding:26px 24px;border-radius:18px;
  background:#fff;border:1px solid var(--line);transition:.22s;position:relative;overflow:hidden;
}
.plat-card::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--brand),var(--mint));transform:scaleY(0);transform-origin:top;transition:.28s;
}
.plat-card:hover{transform:translateY(-3px);border-color:rgba(67,56,202,.3);box-shadow:0 24px 44px -32px rgba(14,20,27,.7)}
.plat-card:hover::after{transform:scaleY(1)}
.plat-ic{width:26px;height:26px;color:var(--brand)}
.plat-ic path,.plat-ic rect{fill:currentColor}
.plat-ic .stroke{fill:none;stroke:currentColor}
.plat-t{font-size:19px;font-weight:820;letter-spacing:-.02em}
.plat-d{font-size:13.8px;color:var(--muted);line-height:1.62;flex:1}
.plat-go{font-size:13.5px;font-weight:750;color:var(--brand);margin-top:6px}
.plat-more{background:linear-gradient(135deg,#1B1F3B,#2E2A6E);border-color:transparent;justify-content:center}
.plat-more .plat-t{color:#fff}
.plat-more .plat-d{color:rgba(255,255,255,.68)}
.plat-more .plat-go{color:#7FE3C4}

/* ---------- kernel / trust ---------- */
.kernel-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:44px;align-items:start}
@media(max-width:900px){.kernel-grid{grid-template-columns:1fr;gap:30px}}
.kernel-copy p{margin:0 0 16px;color:var(--ink2);font-size:15.6px}
.kernel-copy p:last-of-type{margin-bottom:22px}
.kernel-copy strong{color:var(--ink);font-weight:750}
.clone-slip{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  background:#101426;border-radius:14px;padding:15px 18px;
}
.clone-slip code{color:#9FE8CB;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13.4px;flex:1;min-width:220px;word-break:break-all}
.copy-btn{
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.07);color:#fff;
  border-radius:9px;padding:7px 15px;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;transition:.18s;
}
.copy-btn:hover{background:rgba(255,255,255,.16)}
.fact-list{display:grid;gap:10px}
.fact{
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px 18px;
}
.fact-k{font-size:11.5px;font-weight:800;letter-spacing:.12em;color:var(--muted)}
.fact-v{font-size:14.2px;font-weight:700;text-align:right}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(max-width:820px){.faq-grid{grid-template-columns:1fr}}
.faq{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 26px;transition:.2s;
}
.faq:hover{border-color:rgba(67,56,202,.3)}
.faq h4{margin:0 0 9px;font-size:16.5px;font-weight:780;letter-spacing:-.012em}
.faq p{margin:0;font-size:14.4px;color:var(--muted)}
.faq a{color:var(--brand);font-weight:700}
.faq a:hover{text-decoration:underline}

/* ---------- flow ---------- */
.flow{display:grid;gap:0;position:relative}
.step{display:grid;grid-template-columns:74px 1fr;gap:26px;padding:26px 0;border-top:1px solid var(--line)}
.step:first-child{border-top:0;padding-top:0}
.step:last-child{padding-bottom:0}
.step-n{
  font-size:30px;font-weight:860;letter-spacing:-.04em;line-height:1;
  background:linear-gradient(135deg,var(--brand),var(--mint));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.step h4{margin:0 0 9px;font-size:18.5px;font-weight:800;letter-spacing:-.018em}
.step p{margin:0;color:var(--ink2);font-size:15.3px}
@media(max-width:640px){.step{grid-template-columns:1fr;gap:10px}}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:920px){.post-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.post-grid{grid-template-columns:1fr}}
.post{
  display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:24px;transition:.22s;
}
.post:hover{transform:translateY(-3px);border-color:rgba(67,56,202,.3);box-shadow:0 22px 40px -30px rgba(14,20,27,.6)}
.post-tag{font-size:11.5px;font-weight:800;letter-spacing:.1em;color:var(--brand);text-transform:uppercase}
.post h3{margin:0;font-size:17px;line-height:1.48;font-weight:780;letter-spacing:-.015em}
.post p{margin:0;font-size:14px;color:var(--muted);flex:1}
.post-meta{font-size:12.5px;color:var(--muted);padding-top:6px;border-top:1px solid var(--line)}
.more-line{margin:34px 0 0;text-align:center}
.more-link{font-weight:750;color:var(--brand);font-size:15px}
.more-link:hover{text-decoration:underline}

/* ---------- footer ---------- */
.site-footer{background:#0E1220;color:rgba(255,255,255,.72);padding:56px 0 30px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:34px}
@media(max-width:840px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:540px){.foot-grid{grid-template-columns:1fr}}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;margin-bottom:12px}
.foot-brand .logo-mark{width:26px;height:26px}
.foot-desc{font-size:13.6px;line-height:1.75;color:rgba(255,255,255,.55);max-width:320px}
.foot-h{font-size:12px;font-weight:800;letter-spacing:.14em;color:#fff;margin:0 0 14px}
.foot-list{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.foot-list a{font-size:13.8px;color:rgba(255,255,255,.62);transition:.18s}
.foot-list a:hover{color:#7FE3C4}
.foot-base{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.8px;color:rgba(255,255,255,.42);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .ticker-in{animation:none}
}