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4px)}.mobile-nav-cta{padding:20px var(--space-md) 0}.mobile-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background-color:#1a365d4d;z-index:98;cursor:pointer}@media (max-width: 768px){.header-nav{display:none}.hamburger-btn{display:flex}.mobile-drawer,.mobile-overlay{display:block}}:root{--bg-primary: #FFFFFF;--bg-secondary: #F8F9FA;--text-primary: #1A202C;--text-secondary: #4A5568;--color-primary: #1A365D;--color-secondary: #2C5282;--color-accent: #975A16;--border-subtle: #E2E8F0;--font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;--font-en: "Inter", sans-serif;--space-xs: 8px;--space-sm: 16px;--space-md: 32px;--space-lg: 64px;--space-xl: 120px;--radius-sm: 4px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);color:var(--text-primary);background-color:var(--bg-primary);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}html{scroll-behavior:smooth}h1,h2,h3,h4,h5,h6{color:var(--text-primary);line-height:1.3;font-weight:700}a{color:inherit;text-decoration:none}.text-link{color:var(--color-primary);text-decoration:underline;text-underline-offset:4px;transition:opacity .2s}.text-link:hover{opacity:.7}.container{width:100%;max-width:1024px;margin:0 auto;padding:0 var(--space-md)}.section{padding:var(--space-xl) 0}.section-bg-alt{background-color:var(--bg-secondary)}.text-h1{font-size:36px;letter-spacing:-.02em}@media (min-width: 768px){.text-h1{font-size:48px}}.text-h2{font-size:28px;letter-spacing:-.01em;margin-bottom:var(--space-md)}@media (min-width: 768px){.text-h2{font-size:36px}}.text-h3{font-size:22px;margin-bottom:var(--space-sm)}.text-en{font-family:var(--font-en)}.text-primary{color:var(--color-primary)}.text-secondary{color:var(--text-secondary)}.fade-in{animation:fadeIn .8s ease-out forwards}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.inline-block{display:inline-block}.mt-sm{margin-top:var(--space-sm)}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mb-sm{margin-bottom:var(--space-sm)}.mb-md{margin-bottom:var(--space-md)}.mb-lg{margin-bottom:var(--space-lg)}.reveal-up{opacity:0;transform:translateY(30px);transition:opacity .8s ease-out,transform .8s ease-out;will-change:opacity,transform}.reveal-up.is-visible{opacity:1;transform:translateY(0)}:focus-visible{outline:3px solid var(--color-accent);outline-offset:3px;border-radius:4px}@media (prefers-reduced-motion: reduce){.reveal-up{opacity:1;transform:none;transition:none}.fade-in{animation:none;opacity:1;transform:none}}.skip-link{position:absolute;top:-50px;left:16px;background:var(--color-primary);color:#fff;padding:10px 16px;border-radius:0 0 var(--radius-sm) var(--radius-sm);font-weight:700;font-size:14px;z-index:9999;text-decoration:none;transition:top .2s ease}.skip-link:focus{top:0}@media (max-width: 768px){:root{--space-lg: 32px;--space-xl: 64px}.section{padding:64px 0}.container{padding:0 var(--space-sm)}}@media (max-width: 600px){.responsive-table,.responsive-table tbody,.responsive-table th,.responsive-table td,.responsive-table tr{display:block}.responsive-table th{width:100%!important;border-bottom:none!important;padding-bottom:4px!important}.responsive-table td{padding-top:4px!important}}