:root{--primary-color: #4f46e5;--primary-hover: #4338ca;--bg-dark: #0f172a;--bg-darker: #020617;--text-main: #f8fafc;--text-muted: #94a3b8;--glass-bg: rgba(30, 41, 59, .7);--glass-border: rgba(255, 255, 255, .1);--font-family: "Inter", "Noto Sans JP", "Noto Sans SC", sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background-color:var(--bg-dark);color:var(--text-main);min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden;position:relative;-webkit-font-smoothing:antialiased}.background{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:-1;overflow:hidden}.blob{position:absolute;filter:blur(80px);opacity:.6;border-radius:50%;animation:float 20s infinite ease-in-out}.blob-1{width:500px;height:500px;background:radial-gradient(circle,#4f46e5,transparent 70%);top:-100px;left:-100px}.blob-2{width:400px;height:400px;background:radial-gradient(circle,#ec4899,transparent 70%);bottom:-50px;right:-50px;animation-delay:-5s}.blob-3{width:300px;height:300px;background:radial-gradient(circle,#06b6d4,transparent 70%);top:50%;left:50%;transform:translate(-50%,-50%);animation-delay:-10s}@keyframes float{0%,to{transform:translate(0) scale(1)}33%{transform:translate(30px,-50px) scale(1.1)}66%{transform:translate(-20px,20px) scale(.9)}}.container{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:2rem;max-width:800px;margin:0 auto;width:100%}header{text-align:center;margin-bottom:4rem;width:100%;position:relative}.lang-switch{position:absolute;top:-1rem;right:0;display:inline-flex;gap:.5rem;padding:.35rem;border-radius:999px;background:#ffffff0f;border:1px solid var(--glass-border);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.lang-btn{border:none;border-radius:999px;background:transparent;color:var(--text-muted);font:inherit;font-size:.9rem;font-weight:700;padding:.45rem .8rem;cursor:pointer;transition:all .2s ease}.lang-btn:hover{color:var(--text-main);background:#ffffff14}.lang-btn.is-active{color:#fff;background:#818cf847}.logo{font-size:4rem;font-weight:900;letter-spacing:-.05em;background:linear-gradient(to right,#fff,#a5b4fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.5rem}.subtitle{font-size:1.25rem;color:var(--text-muted);font-weight:500;letter-spacing:.05em}main{width:100%;display:flex;flex-direction:column;align-items:center}.download-section{background:var(--glass-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);border-radius:24px;padding:3rem;width:100%;box-shadow:0 25px 50px -12px #00000080;display:flex;flex-direction:column;align-items:center}.primary-download{display:flex;flex-direction:column;align-items:center;margin-bottom:3rem;width:100%}.btn-large{display:flex;align-items:center;justify-content:center;gap:1.5rem;background:linear-gradient(135deg,var(--primary-color),#818cf8);color:#fff;border:none;border-radius:16px;padding:1.25rem 3rem;font-family:inherit;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);width:100%;max-width:400px;box-shadow:0 10px 25px -5px #4f46e580;position:relative;overflow:hidden}.btn-large:after{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:#ffffff1a;transform:rotate(45deg) translate(-50%,-50%);transition:transform .6s;pointer-events:none}.btn-large:hover{transform:translateY(-5px) scale(1.02);box-shadow:0 20px 30px -10px #4f46e599}.btn-large:hover:after{transform:rotate(45deg) translate(50%,50%)}.btn-large:active{transform:translateY(2px)}.os-icon{font-size:2.5rem}.btn-text{display:flex;flex-direction:column;align-items:flex-start;text-align:left}.btn-title{font-size:1.5rem;font-weight:700}.btn-version{font-size:.9rem;opacity:.8}.btn-variant{font-size:.85rem;opacity:.75}.pulse{animation:pulse-shadow 2s infinite}@keyframes pulse-shadow{0%{box-shadow:0 0 #4f46e5b3}70%{box-shadow:0 0 0 15px #4f46e500}to{box-shadow:0 0 #4f46e500}}.aux-info{margin-top:1.5rem;text-align:center;color:var(--text-muted);font-size:.95rem}.aux-info .desc{margin-top:.5rem;color:#cbd5e1}.variant-picker{margin-top:1rem;display:flex;gap:.75rem;flex-wrap:wrap;justify-content:center}.variant-btn{background:#ffffff0d;border:1px solid var(--glass-border);color:var(--text-main);padding:.65rem 1rem;border-radius:999px;font-family:inherit;font-size:.9rem;cursor:pointer;transition:all .2s}.variant-btn:hover{background:#ffffff1f;border-color:#fff3}.variant-btn.is-active{background:#818cf833;border-color:#a5b4fcb3;color:#fff}.other-os{width:100%;text-align:center;border-top:1px solid var(--glass-border);padding-top:2rem}.other-os h3{font-size:1rem;color:var(--text-muted);margin-bottom:1rem;font-weight:500}.os-buttons{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap}.btn-small{display:flex;align-items:center;gap:.5rem;background:#ffffff0d;border:1px solid var(--glass-border);color:var(--text-main);padding:.75rem 1.5rem;border-radius:12px;font-family:inherit;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s}.btn-small .os-icon{font-size:1.25rem}.btn-small:hover{background:#ffffff1a;transform:translateY(-2px);border-color:#fff3}.requirements{width:100%;margin-top:2rem;padding-top:2rem;border-top:1px solid var(--glass-border)}.requirements h3{font-size:1rem;color:var(--text-muted);margin-bottom:.75rem;font-weight:500}.requirements-lead{color:#e2e8f0;font-size:.95rem;margin-bottom:.9rem}.requirements-list{list-style:none;display:grid;gap:.7rem}.requirements-list li{color:#cbd5e1;font-size:.95rem;line-height:1.6;padding:.85rem 1rem;border-radius:14px;background:#ffffff0a;border:1px solid rgba(255,255,255,.08)}footer{margin-top:4rem;display:flex;gap:2rem}.footer-link{color:var(--text-muted);text-decoration:none;font-weight:500;transition:color .2s;display:flex;align-items:center;gap:.5rem}.footer-link:hover{color:var(--text-main)}@media(max-width:600px){header{margin-bottom:3rem;padding-top:3.25rem}.lang-switch{top:0;right:50%;transform:translate(50%)}.logo{font-size:3rem}.download-section{padding:2rem 1.5rem}.btn-large{padding:1rem 1.5rem}.variant-picker{width:100%}.requirements-list li{font-size:.92rem}.os-buttons{flex-direction:column;width:100%;align-items:stretch}}