:root{--bg-deep: #070b14;--bg-card: rgba(255, 255, 255, .04);--bg-card-hover: rgba(255, 255, 255, .07);--border-glass: rgba(255, 255, 255, .08);--border-glow: rgba(56, 189, 248, .35);--grad-primary: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #a78bfa 100%);--grad-text: linear-gradient(120deg, #7dd3fc 0%, #c4b5fd 60%, #f0abfc 100%);--glow-cyan: rgba(56, 189, 248, .22);--glow-purple: rgba(167, 139, 250, .25);--glow-pink: rgba(240, 171, 252, .14);--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--radius-lg: 24px;--radius-md: 16px;--radius-sm: 10px;--max-width: 1200px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Outfit,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Segoe UI,sans-serif;background:var(--bg-deep);color:var(--text-primary);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}.cosmic-bg{position:fixed;inset:0;z-index:-2;background:var(--bg-deep);overflow:hidden}.cosmic-bg:before{content:"";position:absolute;top:-20%;left:-10%;width:70vw;height:70vw;background:radial-gradient(circle at center,var(--glow-purple),transparent 60%);animation:drift 18s ease-in-out infinite alternate}.cosmic-bg:after{content:"";position:absolute;bottom:-25%;right:-15%;width:65vw;height:65vw;background:radial-gradient(circle at center,var(--glow-cyan),transparent 60%);animation:drift 22s ease-in-out infinite alternate-reverse}.stars{position:absolute;inset:0;background-image:radial-gradient(1px 1px at 20% 30%,rgba(255,255,255,.8),transparent),radial-gradient(1px 1px at 40% 70%,rgba(255,255,255,.5),transparent),radial-gradient(1.5px 1.5px at 60% 20%,rgba(255,255,255,.7),transparent),radial-gradient(1px 1px at 80% 50%,rgba(255,255,255,.4),transparent),radial-gradient(1.5px 1.5px at 90% 80%,rgba(255,255,255,.6),transparent),radial-gradient(1px 1px at 10% 85%,rgba(255,255,255,.5),transparent),radial-gradient(1px 1px at 50% 45%,rgba(255,255,255,.3),transparent);animation:twinkle 6s ease-in-out infinite}@keyframes drift{0%{transform:translate(0) scale(1)}to{transform:translate(8%,6%) scale(1.15)}}@keyframes twinkle{0%,to{opacity:.6}50%{opacity:1}}.site-header{position:sticky;top:0;z-index:100;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);background:#070b1499;border-bottom:1px solid var(--border-glass)}.nav-container{max-width:var(--max-width);margin:0 auto;padding:0 2rem;height:68px;display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.2rem;text-decoration:none;color:var(--text-primary);letter-spacing:.5px}.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--grad-primary);display:flex;align-items:center;justify-content:center;font-size:1rem;box-shadow:0 0 20px var(--glow-cyan)}.nav-links{display:flex;align-items:center;gap:2rem;list-style:none}.nav-links a{color:var(--text-secondary);text-decoration:none;font-size:.95rem;transition:color .25s;position:relative}.nav-links a:hover{color:var(--text-primary)}.nav-links a:after{content:"";position:absolute;bottom:-6px;left:0;width:0;height:2px;background:var(--grad-primary);border-radius:2px;transition:width .3s}.nav-links a:hover:after{width:100%}.nav-cta{background:var(--grad-primary);color:#fff!important;padding:.55rem 1.4rem;border-radius:999px;font-weight:600;box-shadow:0 4px 20px var(--glow-cyan);transition:transform .25s,box-shadow .25s!important}.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--glow-cyan)}.nav-cta:after{display:none}.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;z-index:101}.nav-toggle span{display:block;width:24px;height:2px;background:var(--text-primary);margin:5px 0;border-radius:2px;transition:transform .3s,opacity .3s}.container{max-width:var(--max-width);margin:0 auto;padding:0 2rem}.hero{min-height:88vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:6rem 2rem 4rem;position:relative}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:.45rem 1.2rem;border-radius:999px;background:#38bdf81a;border:1px solid rgba(56,189,248,.3);color:#7dd3fc;font-size:.85rem;margin-bottom:2rem;backdrop-filter:blur(8px)}.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:#38bdf8;animation:pulse 2s infinite}@keyframes pulse{0%,to{box-shadow:0 0 #38bdf880}50%{box-shadow:0 0 0 6px #38bdf800}}.hero h1{font-size:clamp(2.6rem,6vw,4.5rem);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin-bottom:1.5rem}.hero h1 .grad{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero p{font-size:clamp(1.05rem,2vw,1.3rem);color:var(--text-secondary);max-width:640px;margin:0 auto 2.5rem}.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;justify-content:center}.btn{display:inline-flex;align-items:center;gap:8px;padding:.85rem 2.2rem;border-radius:999px;font-size:1rem;font-weight:600;text-decoration:none;transition:transform .25s,box-shadow .25s;cursor:pointer}.btn-primary{background:var(--grad-primary);color:#fff;box-shadow:0 6px 30px var(--glow-cyan)}.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 40px var(--glow-cyan)}.btn-ghost{background:#ffffff0f;color:var(--text-primary);border:1px solid var(--border-glass);backdrop-filter:blur(8px)}.btn-ghost:hover{transform:translateY(-3px);background:#ffffff1a}.scroll-hint{position:absolute;bottom:2rem;left:50%;transform:translate(-50%);color:var(--text-muted);font-size:.8rem;animation:bob 2s ease-in-out infinite}@keyframes bob{0%,to{transform:translate(-50%)}50%{transform:translate(-50%,8px)}}.section{padding:5rem 2rem}.section-header{text-align:center;margin-bottom:3.5rem}.section-header h2{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:700;margin-bottom:.8rem}.section-header h2 .grad{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.section-header p{color:var(--text-secondary);max-width:560px;margin:0 auto}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.8rem;max-width:var(--max-width);margin:0 auto}.product-card{position:relative;background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);padding:2rem;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:transform .3s,border-color .3s,box-shadow .3s;overflow:hidden}.product-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-primary);opacity:0;transition:opacity .3s}.product-card:hover{transform:translateY(-8px);border-color:var(--border-glow);box-shadow:0 20px 60px #38bdf81f}.product-card:hover:before{opacity:1}.product-card .emoji{font-size:2.4rem;margin-bottom:1rem;display:block}.product-card h3{font-size:1.25rem;font-weight:700;margin-bottom:.6rem}.product-card p{color:var(--text-secondary);font-size:.92rem;margin-bottom:1.5rem}.card-footer{display:flex;align-items:center;justify-content:space-between}.price{font-size:1.4rem;font-weight:700;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.card-link{color:#7dd3fc;text-decoration:none;font-size:.9rem;font-weight:500;transition:gap .2s;display:inline-flex;align-items:center;gap:4px}.card-link:hover{gap:8px}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.8rem;max-width:var(--max-width);margin:0 auto}.feature-item{text-align:center;padding:2rem 1.5rem;border-radius:var(--radius-lg);background:var(--bg-card);border:1px solid var(--border-glass);backdrop-filter:blur(10px);transition:transform .3s,border-color .3s}.feature-item:hover{transform:translateY(-6px);border-color:var(--border-glow)}.feature-icon{width:56px;height:56px;margin:0 auto 1.2rem;border-radius:16px;background:var(--grad-primary);display:flex;align-items:center;justify-content:center;font-size:1.6rem;box-shadow:0 8px 30px var(--glow-cyan)}.feature-item h3{font-size:1.1rem;margin-bottom:.5rem}.feature-item p{color:var(--text-secondary);font-size:.9rem}.tutorial-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.8rem;max-width:var(--max-width);margin:0 auto}.tutorial-card{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);padding:1.8rem;backdrop-filter:blur(12px);transition:transform .3s,border-color .3s}.tutorial-card:hover{transform:translateY(-6px);border-color:var(--border-glow)}.tutorial-card .tag{display:inline-block;padding:.25rem .8rem;border-radius:999px;font-size:.75rem;background:#a78bfa26;color:#c4b5fd;border:1px solid rgba(167,139,250,.3);margin-bottom:1rem}.tutorial-card h3{font-size:1.1rem;margin-bottom:.5rem;line-height:1.4}.tutorial-card p{color:var(--text-secondary);font-size:.9rem}.cta-section{text-align:center;padding:6rem 2rem}.cta-box{max-width:720px;margin:0 auto;padding:4rem 3rem;border-radius:32px;background:linear-gradient(160deg,#38bdf814,#a78bfa1a);border:1px solid var(--border-glow);backdrop-filter:blur(16px);position:relative;overflow:hidden}.cta-box:before{content:"";position:absolute;top:-50%;left:-20%;width:70%;height:200%;background:radial-gradient(circle,var(--glow-purple),transparent 70%);animation:drift 12s ease-in-out infinite alternate}.cta-box h2{font-size:clamp(1.6rem,3.5vw,2.4rem);margin-bottom:1rem;position:relative}.cta-box p{color:var(--text-secondary);margin-bottom:2rem;position:relative}.site-footer{border-top:1px solid var(--border-glass);padding:2.5rem 2rem;text-align:center;color:var(--text-muted);font-size:.85rem}.site-footer a{color:var(--text-secondary);text-decoration:none;margin:0 .8rem;transition:color .25s}.site-footer a:hover{color:#7dd3fc}.fade-up{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}.fade-up.visible{opacity:1;transform:translateY(0)}@media(max-width:1024px){.nav-links{gap:1.4rem}}@media(max-width:768px){.nav-container{padding:0 1.2rem;height:60px}.nav-toggle{display:block}.nav-links{position:fixed;top:60px;right:0;width:260px;height:calc(100vh - 60px);flex-direction:column;align-items:flex-start;justify-content:flex-start;gap:0;padding:2rem 1.5rem;background:#070b14f2;backdrop-filter:blur(20px);border-left:1px solid var(--border-glass);transform:translate(100%);transition:transform .35s ease}.nav-links.open{transform:translate(0)}.nav-links li{width:100%;margin-bottom:1.5rem}.nav-links a{font-size:1.1rem;display:block;padding:.5rem 0}.nav-cta{text-align:center;margin-top:.5rem}.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-toggle.active span:nth-child(2){opacity:0}.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.hero{min-height:80vh;padding:5rem 1.2rem 3rem}.hero-actions{flex-direction:column;width:100%;max-width:320px}.hero-actions .btn{justify-content:center}.section{padding:3.5rem 1.2rem}.product-grid,.tutorial-grid{grid-template-columns:1fr;gap:1.2rem}.features{grid-template-columns:1fr}.cta-box{padding:3rem 1.5rem}.container{padding:0 1.2rem}}@media(max-width:420px){.hero h1{font-size:2.2rem}.product-card{padding:1.5rem}}