:root{--bg-color: #050505;--text-main: #E6E6E6;--accent-iron: #8899a6;--accent-light: #d8d8e8}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}body{background-color:var(--bg-color);color:var(--text-main);font-family:Zen Old Mincho,serif;width:100vw;overflow-x:hidden}.grain-overlay{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:100;opacity:.06;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E")}#canvas-container{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:1;transition:filter .5s ease}.nav-back{position:fixed;top:2rem;left:3rem;display:flex;align-items:center;gap:1rem;cursor:pointer;z-index:50;text-decoration:none;color:var(--text-main);opacity:.7;transition:opacity .3s;mix-blend-mode:difference}.nav-back:hover{opacity:1}.back-icon{width:40px;height:1px;background:currentColor;position:relative}.back-icon:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) rotate(45deg);width:10px;height:1px;background:currentColor;transform-origin:left}.back-icon:after{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) rotate(-45deg);width:10px;height:1px;background:currentColor;transform-origin:left}.back-text{font-size:.8rem;letter-spacing:.2em}.content-layer{position:relative;z-index:10;width:100%}section{min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:10vh 10vw;position:relative}.vertical-text{writing-mode:vertical-rl;text-orientation:upright;font-feature-settings:"palt";line-height:2.2;letter-spacing:.2em}.section-title{font-size:clamp(2rem,5vw,3.5rem);font-weight:900;margin-bottom:4rem;color:var(--text-main);text-shadow:0 0 20px rgba(0,0,0,.8)}.section-body{font-size:clamp(.9rem,1.2vw,1.1rem);line-height:2.4;letter-spacing:.1em;color:#fffffff2;max-width:600px;background:#0006;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);padding:2.5rem;border-left:1px solid var(--accent-iron);box-shadow:0 0 30px #00000080}.section-body p{margin-bottom:2rem}#sec-intro{align-items:center;text-align:center}.intro-en{font-size:.9rem;letter-spacing:.4em;color:var(--accent-iron);margin-bottom:2rem;display:block}#sec-inheritance{align-items:flex-end}#sec-inheritance .layout-box{display:flex;flex-direction:row-reverse;gap:3rem}#sec-philosophy{align-items:flex-start}#sec-philosophy .layout-box{display:flex;gap:3rem}.philosophy-heading{font-size:1.5rem;color:var(--accent-iron);margin-bottom:1.5rem;letter-spacing:.2em}#sec-revitalization{align-items:center;text-align:center}#sec-revitalization .section-body{border-left:none;border-top:1px solid var(--accent-iron);border-bottom:1px solid var(--accent-iron);padding:4rem 2rem}#sec-footer{min-height:60vh;align-items:center;justify-content:center}.link-btn{display:inline-block;padding:1.5rem 4rem;border:1px solid var(--accent-iron);color:var(--text-main);text-decoration:none;font-size:1rem;letter-spacing:.2em;transition:all .5s cubic-bezier(.19,1,.22,1);position:relative;background:#ffffff0d;overflow:hidden;white-space:nowrap}.link-btn:hover{background:var(--text-main);color:var(--bg-color);border-color:var(--text-main);box-shadow:0 0 30px #fff6}.link-btn:after{content:"→";position:absolute;right:2rem;opacity:0;transform:translate(-10px);transition:.3s}.link-btn:hover:after{opacity:1;transform:translate(0)}.fade-element{opacity:0;transform:translateY(20px);transition:opacity 1.5s ease,transform 1.5s ease}.fade-element.visible{opacity:1;transform:translateY(0)}#loader{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--bg-color);z-index:999;display:flex;justify-content:center;align-items:center;transition:opacity 1s ease}.loader-line{width:0;height:1px;background:#fff;animation:loadLine 1.5s ease-in-out forwards}@keyframes loadLine{to{width:200px}}.mobile-menu-btn{display:none;position:fixed;top:20px;right:20px;z-index:10000;width:30px;height:30px;cursor:pointer;pointer-events:auto}.mobile-menu-btn span{display:block;width:100%;height:2px;background-color:#fff;margin-bottom:6px;transition:.3s}.mobile-menu-btn.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}.mobile-menu-btn.active span:nth-child(2){opacity:0}.mobile-menu-btn.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}.mobile-nav{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#000;z-index:9999;display:flex;justify-content:center;align-items:center;opacity:0;pointer-events:none!important;transition:opacity .3s ease}.mobile-nav.active{opacity:1;pointer-events:auto!important}.mobile-nav-inner{display:flex;flex-direction:column;gap:2rem;text-align:center}.mobile-nav-item{font-size:1.2rem;color:#fff;text-decoration:none;cursor:pointer;pointer-events:auto}@media (max-width: 768px){.vertical-text{writing-mode:horizontal-tb}.section-body{padding:1.5rem;border-left:none;border-top:1px solid var(--accent-iron)}#sec-inheritance .layout-box,#sec-philosophy .layout-box{flex-direction:column}.section-title{margin-bottom:2rem}.mobile-menu-btn{display:block}.link-btn{white-space:nowrap;font-size:.9rem;padding:1.2rem 2.5rem}.link-btn:after{display:none}}.copyright{margin-top:4rem;text-align:center;opacity:0;animation:fadeInCopyright 2s ease 3s forwards}.copyright p{font-family:Zen Old Mincho,serif;font-size:.75rem;letter-spacing:.15em;color:#e6e6e666;margin:0}@keyframes fadeInCopyright{to{opacity:1}}@media (max-width: 768px){.copyright{margin-top:3rem}.copyright p{font-size:.7rem}}