:root{--color-bg: #ffffff;--color-surface: #f8f9fa;--color-border: #dee2e6;--color-text-primary: #1a1d23;--color-text-secondary: #6c757d;--color-accent: #faba40;--color-accent-dark: #e0a030;--color-accent-text: #7a5000;--container-max: 1140px;--container-pad: 1rem;--space-page: 1rem}body.dark{--color-bg: #1a1d23;--color-surface: #242830;--color-border: #373d47;--color-text-primary: #f1f3f5;--color-text-secondary: #9aa0a8;--color-accent: #faba40;--color-accent-dark: #ffc958;--color-accent-text: #1a1d23}*,*:before,*:after{box-sizing:border-box}body{font-family:Hiragino Kaku Gothic ProN,Hiragino Sans,Yu Gothic,YuGothic,Meiryo,sans-serif;font-size:1.05rem;line-height:1.8;background-color:var(--color-bg);color:var(--color-text-primary);font-feature-settings:"pkna";-webkit-font-smoothing:antialiased;transition:background-color .2s,color .2s;min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5{font-family:Hiragino Kaku Gothic ProN,Hiragino Sans,Yu Gothic,YuGothic,Meiryo,sans-serif;line-height:1.4;color:var(--color-text-primary)}a{color:var(--color-accent-text);text-decoration:none;transition:color .15s}a:hover{color:var(--color-accent-dark);text-decoration:underline}body.dark a{color:var(--color-accent)}body.dark a:hover{color:var(--color-accent-dark)}.page-header{padding:2rem 0 1.5rem;border-bottom:1px solid var(--color-border);margin-bottom:2rem;background:var(--color-bg)}.page-header__title{font-size:1.6rem;font-weight:700;margin-bottom:.25rem}.page-header__desc{font-size:.95rem;color:var(--color-text-secondary);margin-bottom:0}.section-header{font-size:1.3rem;font-weight:700;margin-bottom:1.5rem;color:var(--color-text-primary)}.section-header__desc{font-size:.9rem;color:var(--color-text-secondary);margin-top:-.5rem}.site-card{border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface);color:var(--color-text-primary);transition:border-color .15s,transform .15s,box-shadow .15s}.site-card:hover{border-color:var(--color-accent);transform:translateY(-3px);box-shadow:0 4px 16px #00000014;color:var(--color-text-primary);text-decoration:none}body.dark .site-card{background:var(--color-surface);border-color:var(--color-border);color:var(--color-text-primary)}body.dark .site-card:hover{border-color:var(--color-accent);box-shadow:0 4px 16px #0000004d}.site-card__body{padding:1.25rem}.site-card__title{font-size:1rem;font-weight:700;margin-bottom:.35rem;color:var(--color-text-primary)}.site-card__text{font-size:.875rem;line-height:1.6;color:var(--color-text-secondary);margin:0}.site-card__icon{width:56px;height:56px;object-fit:contain;display:block;margin-bottom:.75rem}.site-card__bi-icon{font-size:2.5rem;color:var(--color-text-primary);display:block;margin-bottom:.75rem}.card{border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface);color:var(--color-text-primary)}.back-link{display:inline-flex;align-items:center;gap:6px;font-size:.9rem;font-weight:500;color:var(--color-text-secondary);text-decoration:none;padding:.4rem 0;transition:color .15s}.back-link:hover{color:var(--color-text-primary);text-decoration:none}.site-footer{background:var(--color-surface);border-top:1px solid var(--color-border);color:var(--color-text-secondary);font-size:.875rem;margin-top:auto;padding:1.5rem 0}.site-footer__inner{max-width:var(--container-max);margin:0 auto;padding:0 var(--container-pad);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.5rem}.site-footer a{color:var(--color-text-secondary);text-decoration:none}.site-footer a:hover{color:var(--color-text-primary);text-decoration:underline}#site-nav{background:var(--color-bg);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:1000;transition:background .2s,border-color .2s}.site-nav__inner{max-width:var(--container-max);margin:0 auto;padding:0 var(--container-pad);display:flex;align-items:center;gap:.75rem;height:56px}.site-nav__brand{font-weight:700;font-size:1.1rem;color:var(--color-text-primary);text-decoration:none;letter-spacing:.02em;flex-shrink:0}.site-nav__brand:hover{color:var(--color-accent-text);text-decoration:none}body.dark .site-nav__brand:hover{color:var(--color-accent)}.site-nav__toggle{display:none;margin-left:auto;background:transparent;border:1px solid var(--color-border);border-radius:4px;width:36px;height:36px;cursor:pointer;align-items:center;justify-content:center;color:var(--color-text-secondary);transition:border-color .15s;flex-shrink:0}.site-nav__toggle:focus{outline:none;box-shadow:0 0 0 3px #faba4040}.site-nav__menu{display:flex;align-items:center;flex:1;gap:0}.site-nav__links{display:flex;align-items:center;list-style:none;margin:0;padding:0;flex:1}.site-nav__link{color:var(--color-text-secondary);font-size:.95rem;font-weight:500;padding:.4rem .75rem;border-radius:4px;transition:color .15s,background .15s;white-space:nowrap}.site-nav__link:hover,.site-nav__link.active{color:var(--color-text-primary);background:#0000000a;text-decoration:none}body.dark .site-nav__link:hover,body.dark .site-nav__link.active{background:#ffffff0f;color:var(--color-text-primary)}.site-nav__link.active{color:var(--color-accent-text);font-weight:600}body.dark .site-nav__link.active{color:var(--color-accent)}.site-nav__actions{display:flex;align-items:center;gap:.5rem;margin-left:auto;flex-shrink:0}@media(max-width:767.98px){.site-nav__toggle{display:flex}.site-nav__menu{display:none;position:absolute;top:56px;left:0;right:0;background:var(--color-surface);border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border);flex-direction:column;align-items:stretch;padding:.75rem 1rem;gap:.25rem;z-index:999}.site-nav__menu.show{display:flex}.site-nav__links{flex-direction:column;align-items:stretch;gap:.25rem}.site-nav__link{padding:.6rem .75rem;display:block}.site-nav__actions{margin-left:0;padding-top:.5rem;border-top:1px solid var(--color-border)}}.logo-switches{display:flex;align-items:center;gap:8px}#theme-toggle{background:transparent;border:1.5px solid var(--color-border);border-radius:50%;width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--color-text-secondary);font-size:1rem;transition:border-color .15s,color .15s,background .15s;padding:0;line-height:1}#theme-toggle:hover{border-color:var(--color-accent);color:var(--color-text-primary);background:#faba4014}#theme-toggle #moon,#theme-toggle #sun{display:none;width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}body.dark #theme-toggle #sun{display:block}body:not(.dark) #theme-toggle #moon{display:block}.hidden{display:none!important}.collapse{display:none}.collapse.show{display:block}.bi{color:inherit}@media print{#site-nav,#site-footer,#theme-toggle{display:none!important}body{background:#fff;color:#000}}