.app{min-height:100vh}.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:#000000b8;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--border)}.nav-inner{max-width:var(--max-width);margin:0 auto;padding:0 22px;height:48px;display:flex;align-items:center;justify-content:space-between}.nav-brand{font-size:15px;font-weight:600;letter-spacing:-.02em}.nav-right{display:flex;align-items:center;gap:24px}.nav-links{display:flex;gap:20px}.nav-links a{font-size:13px;color:var(--text-secondary);transition:color .2s}.nav-links a:hover{color:var(--text)}.lang-toggle{font-size:12px;font-weight:600;color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 10px;transition:all .2s}.lang-toggle:hover{background:#ffffff14}@media (max-width: 768px){.nav-links{display:none}}.hero{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:0 22px;position:relative}.hero-inner{max-width:680px}.hero-title{font-size:clamp(40px,8vw,80px);font-weight:800;letter-spacing:-.04em;line-height:1.05;margin-bottom:16px}.hero-subtitle{font-size:clamp(20px,4vw,32px);font-weight:500;color:var(--text);letter-spacing:-.02em;margin-bottom:20px}.hero-desc{font-size:clamp(15px,2.5vw,19px);color:var(--text-secondary);font-weight:400;line-height:1.6;max-width:520px;margin:0 auto}.hero-scroll{position:absolute;bottom:40px;left:50%;transform:translate(-50%);opacity:.5}.section{padding:120px 22px}.section-alt{background:var(--bg-secondary)}.section-inner{max-width:var(--max-width);margin:0 auto}.section-title{font-size:clamp(32px,6vw,56px);font-weight:800;letter-spacing:-.03em;margin-bottom:40px}.section-body{font-size:clamp(17px,2.5vw,21px);color:var(--text-secondary);line-height:1.7;font-weight:400;max-width:680px}.app-card{display:flex;gap:48px;align-items:center;padding:48px 0;border-bottom:1px solid var(--border)}.app-card:last-child{border-bottom:none}.app-info{flex:1}.app-header{display:flex;align-items:center;gap:16px;margin-bottom:20px}.app-icon{width:64px;height:64px;border-radius:14px;object-fit:cover}.app-name{font-size:28px;font-weight:700;letter-spacing:-.02em}.app-tagline{font-size:15px;color:var(--text-secondary);margin-top:2px}.app-desc{font-size:16px;color:var(--text-secondary);line-height:1.7;margin-bottom:24px}.app-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:#2997ff;transition:opacity .2s}.app-link:hover{opacity:.7}.arrow{transition:transform .2s}.app-link:hover .arrow{transform:translate(4px)}.app-screens{flex:1;display:flex;gap:16px;justify-content:center}.screen-shot{width:200px;border-radius:12px;box-shadow:0 20px 60px #00000080}@media (max-width: 768px){.app-card{flex-direction:column;gap:32px}.app-screens{flex-direction:row;flex-wrap:wrap}.screen-shot{width:160px}}.why-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.why-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:32px;transition:border-color .2s}.why-card:hover{border-color:#ffffff26}.why-title{font-size:19px;font-weight:600;margin-bottom:12px;letter-spacing:-.01em}.why-desc{font-size:15px;color:var(--text-secondary);line-height:1.7}.app-features{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px;padding:0}.app-feature-item{font-size:13px;color:var(--text-secondary);background:#ffffff0d;border:1px solid var(--border);border-radius:8px;padding:6px 12px}.roadmap-timeline{position:relative;padding-left:28px}.roadmap-timeline:before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:var(--border)}.roadmap-phase{position:relative;padding-bottom:40px}.roadmap-phase:last-child{padding-bottom:0}.roadmap-dot{position:absolute;left:-28px;top:4px;width:14px;height:14px;border-radius:50%;border:2px solid var(--border);background:var(--bg)}.roadmap-done .roadmap-dot{background:#30d158;border-color:#30d158}.roadmap-in_progress .roadmap-dot{background:#2997ff;border-color:#2997ff}.roadmap-planned .roadmap-dot{background:var(--bg);border-color:var(--text-tertiary)}.roadmap-content{padding-left:8px}.roadmap-phase-label{font-size:13px;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em}.roadmap-phase-title{font-size:20px;font-weight:600;margin:4px 0 8px;letter-spacing:-.01em}.roadmap-phase-desc{font-size:15px;color:var(--text-secondary);line-height:1.6;margin-bottom:12px}.roadmap-status{font-size:12px;font-weight:600;padding:4px 10px;border-radius:6px}.roadmap-status-done{background:#30d15826;color:#30d158}.roadmap-status-in_progress{background:#2997ff26;color:#2997ff}.roadmap-status-planned{background:#ffffff0d;color:var(--text-tertiary)}.tech-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.tech-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:4px;transition:border-color .2s}.tech-item:hover{border-color:#ffffff26}.tech-name{font-size:18px;font-weight:600}.tech-category{font-size:13px;color:var(--text-tertiary)}.community-list{display:flex;flex-direction:column;gap:24px}.community-item{padding:28px 0;border-bottom:1px solid var(--border)}.community-item:last-child{border-bottom:none}.community-name{font-size:20px;font-weight:600;margin-bottom:6px}.community-desc{font-size:15px;color:var(--text-secondary);line-height:1.6}.contact-links{display:flex;flex-direction:column;gap:0}.contact-link{display:flex;align-items:center;justify-content:space-between;padding:20px 0;border-bottom:1px solid var(--border);font-size:18px;font-weight:500;color:var(--text);transition:color .2s}.contact-link:hover{color:#2997ff}.contact-link:hover .arrow{transform:translate(4px)}.footer{padding:40px 22px;text-align:center;border-top:1px solid var(--border)}.footer p{font-size:13px;color:var(--text-tertiary)}*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #000000;--bg-secondary: #0a0a0a;--bg-card: #111111;--text: #f5f5f7;--text-secondary: #86868b;--text-tertiary: #515156;--accent: #ffffff;--border: rgba(255, 255, 255, .08);--radius: 18px;--max-width: 980px}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background:var(--bg);color:var(--text);font-family:Inter,Noto Sans JP,-apple-system,BlinkMacSystemFont,sans-serif;font-weight:400;line-height:1.5;overflow-x:hidden}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}img{max-width:100%;display:block}.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s cubic-bezier(.22,1,.36,1),transform .8s cubic-bezier(.22,1,.36,1)}.reveal.visible{opacity:1;transform:translateY(0)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:#333;border-radius:3px}