:root{--color-bg-primary: #0a0a0c;--color-bg-secondary: #111114;--color-bg-tertiary: #1a1a1f;--color-text-primary: #f2eee8;--color-text-secondary: #c7c0b5;--color-text-tertiary: #a49b90;--color-accent-warm: #c8956c;--color-accent-cool: #7a9bb5;--color-accent-gold: #b89f6a;--color-overlay: rgba(5, 5, 8, .92);--color-border: rgba(255, 255, 255, .08);--color-border-hover: rgba(255, 255, 255, .16);--font-serif: "Noto Serif JP", Georgia, serif;--font-sans: "Noto Sans JP", "Helvetica Neue", Arial, sans-serif;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 2rem;--space-xl: 4rem;--space-2xl: 8rem;--max-width: 1200px;--nav-height: 4rem;--transition-fast: .15s ease;--transition-base: .3s ease;--transition-slow: .6s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background-color:var(--color-bg-primary);color:var(--color-text-primary);font-family:var(--font-sans);font-weight:300;line-height:1.7;min-height:100dvh;-webkit-font-smoothing:antialiased}img,svg,video{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;background:none;font:inherit}ul,ol{list-style:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.container{width:min(100%,var(--max-width));margin-inline:auto;padding-inline:var(--space-lg)}h1,h2,h3{font-family:var(--font-serif);font-weight:400;letter-spacing:.04em;line-height:1.3}:focus-visible{outline:2px solid var(--color-accent-warm);outline-offset:3px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.site-header{position:fixed;top:0;left:0;right:0;height:var(--nav-height);background:#0a0a0cd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border);z-index:100;display:flex;align-items:center}.header-inner{display:flex;align-items:center;justify-content:space-between;width:100%}.site-logo{font-family:var(--font-serif);font-size:1.25rem;letter-spacing:.08em;color:var(--color-text-primary);font-weight:400}.site-nav{display:flex;align-items:center;gap:var(--space-lg)}.nav-link{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--color-text-secondary);transition:color var(--transition-fast)}.nav-link:hover,.nav-link[aria-current=page]{color:var(--color-text-primary)}.lang-switcher{display:flex;gap:var(--space-sm);font-size:.75rem;letter-spacing:.08em}.lang-btn{color:var(--color-text-tertiary);transition:color var(--transition-fast);padding:var(--space-xs) var(--space-sm);border:1px solid transparent;border-radius:2px}.lang-btn:hover{color:var(--color-text-primary)}.lang-btn[aria-current=true]{color:var(--color-text-primary);border-color:var(--color-border)}.hamburger{display:none;flex-direction:column;gap:5px;width:24px;padding:4px 0}.hamburger span{display:block;height:1px;background:var(--color-text-primary);transition:transform var(--transition-base),opacity var(--transition-base)}.site-footer{border-top:1px solid var(--color-border);padding:var(--space-xl) 0 var(--space-lg);margin-top:var(--space-2xl)}.footer-inner{display:flex;flex-direction:column;align-items:center;gap:var(--space-md);text-align:center}.footer-nav{display:flex;gap:var(--space-lg);flex-wrap:wrap;justify-content:center}.footer-nav a{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--color-text-tertiary);transition:color var(--transition-fast)}.footer-nav a:hover{color:var(--color-text-secondary)}.footer-copy{font-size:.7rem;color:var(--color-text-tertiary);letter-spacing:.06em}.page-wrapper{padding-top:var(--nav-height);min-height:100dvh}@media(max-width:640px){.site-nav{position:fixed;top:var(--nav-height);left:0;right:0;background:var(--color-bg-secondary);flex-direction:column;padding:var(--space-lg);gap:var(--space-md);z-index:99}.hamburger{display:flex}}.site-nav[hidden]{display:none}.skip-link{position:absolute;top:-999px;left:0;background:var(--color-bg-secondary);color:var(--color-text-primary);padding:.5rem 1rem;font-size:.85rem;border:1px solid var(--color-accent-warm);z-index:9999}.skip-link:focus{top:0}