:root{--bg-0:#07070c;--bg-1:#0d0d15;--surface:#ffffff0a;--surface-strong:#ffffff12;--border:#ffffff1a;--border-strong:#ffffff2e;--text-0:#fff;--text-1:#c3c3d4;--text-2:#8a8aa0;--primary:#3aa0ff;--primary-2:#1099bb;--accent:#ff4d8d;--accent-2:#7c5cff;--grad:linear-gradient(135deg, #3aa0ff 0%, #7c5cff 50%, #ff4d8d 100%);--grad-soft:linear-gradient(135deg, #3aa0ff2e, #ff4d8d2e);--radius:18px;--radius-sm:12px;--shadow:0 24px 70px #00000080;--glow:0 0 40px #3aa0ff40;--maxw:1180px;--header-h:68px;--font:"PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;--mono:"JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, monospace}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:var(--header-h)}body{font-family:var(--font);color:var(--text-1);background:var(--bg-0);-webkit-font-smoothing:antialiased;line-height:1.7;overflow-x:hidden}body:before{content:"";z-index:-2;background:radial-gradient(60vw 60vw at 82% -10%, #7c5cff2e, 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auto;padding:0 24px;display:flex}.brand{color:var(--text-0);align-items:center;gap:10px;font-size:18px;font-weight:700;display:flex}.brand img{width:auto;height:30px}.nav-links{align-items:center;gap:28px;display:flex}.nav-links a{color:var(--text-1);font-size:15px;transition:color .2s;position:relative}.nav-links a:after{content:"";background:var(--grad);width:0;height:2px;transition:width .25s;position:absolute;bottom:-6px;left:0}.nav-links a:hover{color:#fff}.nav-links a:hover:after{width:100%}.hero{text-align:center;min-height:100vh;padding-top:var(--header-h);justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.hero-orb{filter:blur(60px);opacity:.55;border-radius:50%;animation:14s ease-in-out infinite float;position:absolute}.hero-orb.a{background:radial-gradient(circle,#3aa0ff,#0000 70%);width:420px;height:420px;top:8%;left:10%}.hero-orb.b{background:radial-gradient(circle,#ff4d8d,#0000 70%);width:380px;height:380px;animation-delay:-5s;bottom:6%;right:12%}.hero-orb.c{background:radial-gradient(circle,#7c5cff,#0000 70%);width:300px;height:300px;animation-delay:-9s;top:40%;right:38%}@keyframes float{0%,to{transform:translate(0)scale(1)}33%{transform:translate(40px,-30px)scale(1.08)}66%{transform:translate(-30px,25px)scale(.95)}}.hero-inner{z-index:2;max-width:880px;position:relative}.hero-badge{background:var(--surface-strong);border:1px solid var(--border-strong);color:var(--text-1);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:999px;align-items:center;gap:8px;margin-bottom:28px;padding:7px 16px;font-size:13px;display:inline-flex}.hero h1{color:var(--text-0);letter-spacing:-.02em;font-size:clamp(40px,7vw,76px);font-weight:800;line-height:1.08}.hero h1 .gradient-text{display:inline-block}.hero-sub{max-width:620px;color:var(--text-1);margin:26px auto 0;font-size:19px}.hero-actions{flex-wrap:wrap;justify-content:center;gap:16px;margin-top:40px;display:flex}.hero-stats{flex-wrap:wrap;justify-content:center;gap:48px;margin-top:64px;display:flex}.hero-stats .stat{text-align:center}.hero-stats .num{color:var(--text-0);font-size:34px;font-weight:800}.hero-stats .label{color:var(--text-2);letter-spacing:.05em;font-size:13px}.scroll-hint{color:var(--text-2);letter-spacing:.2em;font-size:12px;animation:1.8s ease-in-out infinite bob;position:absolute;bottom:28px;left:50%;transform:translate(-50%)}@keyframes bob{0%,to{opacity:.6;transform:translate(-50%)}50%{opacity:1;transform:translate(-50%,8px)}}.features-grid{grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:20px;display:grid}.feature-card{border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:28px;transition:transform .25s,border-color .25s,box-shadow .25s}.feature-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow), var(--glow);transform:translateY(-6px)}.feature-icon{margin-bottom:14px;font-size:30px}.feature-card h3{color:var(--text-0);margin-bottom:8px;font-size:18px}.feature-card p{color:var(--text-2);font-size:14.5px}.about-grid{grid-template-columns:1fr 1fr;gap:28px;display:grid}.about-col{border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:34px}.about-col h3{color:var(--text-0);margin-bottom:16px;font-size:22px}.about-col p{color:var(--text-1);font-size:15.5px}.about-col ul{flex-direction:column;gap:12px;margin-top:14px;list-style:none;display:flex}.about-col li{color:var(--text-1);padding-left:26px;font-size:15px;position:relative}.about-col 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.25s;overflow:hidden}.demo-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow), var(--glow)}.demo-canvas{background:#05050a;width:100%;height:320px;position:relative;overflow:hidden}.demo-card.showcase{margin-bottom:26px}.demo-card.showcase .demo-canvas{height:440px}.demo-overlay{z-index:4;pointer-events:none;text-shadow:0 2px 18px #0009;max-width:70%;position:absolute;bottom:26px;left:28px}.ov-eyebrow{letter-spacing:.18em;text-transform:uppercase;background:var(--grad);color:#0000;-webkit-background-clip:text;background-clip:text;margin-bottom:6px;font-size:12px;font-weight:700;display:inline-block}.ov-title{color:#fff;letter-spacing:-.01em;font-size:30px;font-weight:800}.ov-sub{color:#ffffffc7;margin-top:6px;font-size:14.5px}.demo-canvas canvas{display:block;width:100%!important;height:100%!important}.demo-badge{z-index:5;border:1px solid var(--border-strong);color:var(--text-0);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#07070cb3;border-radius:999px;padding:6px 12px;font-size:12px;font-weight:600;position:absolute;top:12px;left:12px}.demo-body{padding:22px 24px 26px}.demo-body h3{color:var(--text-0);margin-bottom:8px;font-size:19px}.demo-body p{color:var(--text-2);margin-bottom:12px;font-size:14px}.demo-hint{color:var(--primary);font-size:13px}.site-footer{border-top:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#08080e99;padding:56px 0 36px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;margin-bottom:40px;display:grid}.footer-brand img{height:34px;margin-bottom:16px}.footer-brand p{color:var(--text-2);max-width:320px;font-size:14px}.footer-col h4{color:var(--text-0);letter-spacing:.05em;margin-bottom:16px;font-size:14px}.footer-col a{color:var(--text-2);margin-bottom:10px;font-size:14px;transition:color .2s;display:block}.footer-col a:hover{color:var(--primary)}.footer-bottom{border-top:1px solid var(--border);color:var(--text-2);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;padding-top:24px;font-size:13px;display:flex}.footer-links{flex-wrap:wrap;gap:18px;display:flex}.donate-btn{background:var(--grad);color:#fff;box-shadow:var(--glow);border-radius:999px;align-items:center;gap:8px;padding:10px 18px;font-size:13.5px;font-weight:600;transition:transform .2s,box-shadow .2s;display:inline-flex}.donate-btn:hover{transform:translateY(-2px);box-shadow:0 0 50px #7c5cff80}.reveal{opacity:0;transition:opacity .7s,transform .7s;transform:translateY(28px)}.reveal.in{opacity:1;transform:none}@media (width<=900px){.about-grid,.qs-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.section-head h2{font-size:32px}}@media (width<=640px){.nav-links{display:none}section{padding:80px 0}.footer-grid{grid-template-columns:1fr}.hero-stats{gap:28px}}