:root{--bg-primary: #ffffff;--bg-surface: #f8f9fa;--bg-elevated: #ffffff;--bg-card: #ffffff;--text-primary: #1a1a1a;--text-secondary: #5a6570;--text-muted: #9aa5ae;--accent: #1d5aa8;--accent-light: #2b6bb5;--accent-dark: #164682;--accent-green: #047857;--color-blue: #1d5aa8;--color-blue-bg: rgba(29, 90, 168, .06);--color-blue-border: rgba(29, 90, 168, .12);--color-green: #047857;--color-green-bg: rgba(4, 120, 87, .06);--color-green-border: rgba(4, 120, 87, .12);--border-subtle: rgba(0, 0, 0, .06);--border-light: rgba(0, 0, 0, .08);--border-focus: rgba(29, 90, 168, .4);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .04);--shadow-md: 0 1px 3px rgba(0, 0, 0, .03), 0 6px 16px rgba(0, 0, 0, .05);--shadow-lg: 0 2px 4px rgba(0, 0, 0, .03), 0 10px 28px rgba(0, 0, 0, .06);--font-sans: "LINE Seed JP", "Inter", "Noto Sans JP", sans-serif;--font-display: "Preahvihear", "LINE Seed JP", sans-serif;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2.5rem;--space-2xl: 4rem;--space-3xl: 6rem;--section-gap: 10rem;--container-max: 1140px;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 18px;--radius-full: 9999px;--z-body: 0;--z-header: 110;--z-footer: 100;--z-overlay: 105;--z-overlay-trigger: 110;--z-skip: 200;--duration-fast: .12s;--duration-normal: .2s;--duration-slow: .5s}*,*:before,*:after{box-sizing:border-box}html{font-family:var(--font-sans);font-size:clamp(1rem,.925rem + .25vw,1.125rem);background:var(--bg-primary);color:var(--text-primary);scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-feature-settings:"palt"}body{margin:0;padding:0;overflow-x:hidden;line-height:1.7}main{position:relative;z-index:var(--z-body);isolation:isolate}h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.15;color:var(--text-primary);text-wrap:balance}p{margin:0;text-wrap:pretty}ul,ol{margin:0;padding:0;list-style:none}img{max-width:100%;height:auto;display:block}table{font-variant-numeric:tabular-nums}a{text-decoration:none;color:inherit;transition:color var(--duration-fast) ease}a:hover{color:var(--accent)}button{cursor:pointer;border:none;background:none;font-family:inherit}.skip-link{position:absolute;top:-100%;left:var(--space-md);z-index:var(--z-skip);padding:var(--space-sm) var(--space-md);background:var(--accent);color:#fff;border-radius:0 0 var(--radius-sm) var(--radius-sm);font-size:.85rem;font-weight:600;transition:top var(--duration-normal) ease-out}.skip-link:focus{top:0;color:#fff}.container{max-width:var(--container-max);margin:0 auto;padding:0 1.5rem}.section{padding:var(--section-gap) 0;position:relative}[id]{scroll-margin-top:5rem}.section-label{display:inline-flex;align-items:center;gap:.6rem;font-size:.78rem;font-weight:700;text-transform:uppercase;color:var(--accent);margin-bottom:.75rem}.section-label:before{content:"";display:block;width:1.5rem;height:1px;background:var(--accent)}.section-title{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;margin-bottom:1rem;color:var(--text-primary)}.section-desc{font-size:1rem;color:var(--text-secondary);line-height:1.8;max-width:520px}.section-header{margin-bottom:4rem}.section-header--center{text-align:center}.section-header--center .section-label{justify-content:center}.section-header--center .section-desc{margin:0 auto}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 2rem;border-radius:var(--radius-full);font-weight:700;font-size:.95rem;cursor:pointer;transition:transform var(--duration-fast) ease-out,box-shadow var(--duration-normal) ease-out,border-color var(--duration-fast) ease-out;position:relative;overflow:hidden;white-space:nowrap}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.btn:active{transform:scale(.97);transition-duration:80ms}.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-md);color:#fff}.btn-outline{background:transparent;color:var(--text-primary);border:1px solid var(--border-light)}.btn-outline:hover{background:var(--bg-surface);border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}.btn-large{font-size:1.05rem;padding:1rem 2.5rem}.glass-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:box-shadow var(--duration-normal) ease-out,border-color var(--duration-normal) ease-out}.glass-card:hover{border-color:var(--border-light);box-shadow:var(--shadow-md)}.glass-card:focus-within{border-color:var(--border-focus);outline:2px solid var(--accent);outline-offset:2px}.flex{display:flex}.justify-between{justify-content:space-between}.items-center{align-items:center}.grid{display:grid}.gap-6{gap:1.5rem}.gap-8{gap:2rem}.divider{width:100%;height:1px;background:var(--border-subtle)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes subtlePulse{0%,to{opacity:1}50%{opacity:.4}}.animate-on-scroll{opacity:0;transform:translateY(24px);transition:opacity .8s ease-out,transform .8s ease-out}.animate-on-scroll.visible{opacity:1;transform:translateY(0)}.fade-in-up{animation:fadeInUp .6s ease-out forwards}.delay-1{animation-delay:.1s}.delay-2{animation-delay:.2s}.delay-3{animation-delay:.3s}.delay-4{animation-delay:.4s}.stagger-1{transition-delay:.05s}.stagger-2{transition-delay:.1s}.stagger-3{transition-delay:.15s}.stagger-4{transition-delay:.2s}.stagger-5{transition-delay:.25s}.stagger-6{transition-delay:.3s}a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.animate-on-scroll{opacity:1;transform:none}}.page-hero{padding:clamp(6rem,15vw,10rem) 0 clamp(2.5rem,6vw,4rem);background:var(--bg-primary);position:relative}.page-hero-title{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;line-height:1.2;margin-bottom:.75rem;color:var(--text-primary)}.page-hero-desc{font-size:1rem;color:var(--text-secondary);line-height:1.8;max-width:580px}.article-content{max-width:760px;margin:0 auto;font-size:1rem;line-height:1.85;color:var(--text-primary)}.article-content h2{font-size:1.6rem;font-weight:800;margin-top:3rem;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid var(--border-subtle)}.article-content h3{font-size:1.25rem;font-weight:700;margin-top:2.5rem;margin-bottom:.75rem}.article-content h4{font-size:1.1rem;font-weight:700;margin-top:2rem;margin-bottom:.5rem}.article-content p{margin-bottom:1.25rem;color:var(--text-secondary)}.article-content ul,.article-content ol{margin-bottom:1.25rem;padding-left:1.5rem}.article-content ul{list-style:disc}.article-content ol{list-style:decimal}.article-content li{margin-bottom:.4rem;color:var(--text-secondary);line-height:1.7}.article-content strong{font-weight:700;color:var(--text-primary)}.article-content a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.article-content a:hover{color:var(--accent-dark)}.article-content blockquote{margin:1.5rem 0;padding:1rem 1.5rem;border-left:3px solid var(--accent);background:var(--bg-surface);border-radius:0 8px 8px 0}.article-content blockquote p{margin-bottom:0}.article-content code{font-family:SF Mono,Fira Code,monospace;font-size:.88em;padding:.15em .4em;background:var(--bg-elevated);border-radius:4px;color:var(--text-primary)}.article-content pre{margin:1.5rem 0;padding:1.25rem;background:var(--bg-elevated);border-radius:12px;overflow-x:auto;border:1px solid var(--border-subtle)}.article-content pre code{padding:0;background:none;border-radius:0}.article-content hr{margin:2.5rem 0;border:none;border-top:1px solid var(--border-subtle)}@media(max-width:768px){:root{--section-gap: 6rem}.container{padding:0 1.5rem}.section-title{font-size:clamp(1.6rem,6vw,2.4rem)}}body{background-color:var(--bg-primary);color:var(--text-primary)}