@import "https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap";:root{--primary-color:#4f46e5;--primary-light:#818cf8;--primary-bg:#e0e7ff;--secondary-color:#ec4899;--bg-color:#f1f5f9;--surface-color:#fff;--text-main:#1e293b;--text-muted:#64748b;--border-color:#e2e8f0;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--radius-full:9999px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-float:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-main);-webkit-font-smoothing:antialiased;font-family:Noto Sans JP,sans-serif;line-height:1.5}#root{background-color:var(--bg-color);flex-direction:column;max-width:480px;min-height:100vh;margin:0 auto;display:flex;position:relative;overflow-x:hidden;box-shadow:0 0 30px #0000000d}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-slide-up{animation:.5s cubic-bezier(.16,1,.3,1) forwards slideUp}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.animate-fade-in{animation:.4s forwards fadeIn}button{cursor:pointer;background:0 0;border:none;font-family:inherit;transition:all .2s}button:active{transform:scale(.96)}.app-header{background-color:var(--surface-color);border-bottom:1px solid var(--border-color);z-index:10;justify-content:space-between;align-items:center;padding:16px 20px;display:flex;position:sticky;top:0}.app-header h1{color:var(--primary-color);font-size:1.125rem;font-weight:700}.bottom-nav{background-color:var(--surface-color);border-top:1px solid var(--border-color);width:100%;max-width:480px;padding:12px 0;padding-bottom:calc(12px + env(safe-area-inset-bottom));z-index:50;justify-content:space-around;display:flex;position:fixed;bottom:0;left:50%;transform:translate(-50%)}.bottom-nav-item{color:var(--text-muted);flex-direction:column;flex:1;align-items:center;gap:4px;font-size:.7rem;font-weight:500;text-decoration:none;display:flex}.bottom-nav-item.active{color:var(--primary-color)}.bottom-nav-item svg{transition:transform .2s}.bottom-nav-item.active svg{transform:translateY(-2px)}.main-content{flex:1;padding:20px 20px 90px}.blog-layout-unauth{color:#111827;background-color:#f9fafb;flex-direction:column;width:100vw;min-height:100vh;margin-left:-50vw;margin-right:-50vw;font-family:Noto Sans JP,sans-serif;display:flex;position:relative;left:50%;right:50%}.blog-layout-auth{width:100%}.blog-header-unauth{z-index:50;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background-color:#fffffff2;border-bottom:1px solid #f3f4f6;position:sticky;top:0}.blog-header-unauth-content{justify-content:space-between;align-items:center;max-width:800px;margin:0 auto;padding:12px 16px;display:flex}.blog-header-unauth-logo{color:var(--primary-color);cursor:pointer;font-size:1.25rem;font-weight:900;text-decoration:none}.blog-header-unauth-nav{align-items:center;gap:12px;display:flex}.blog-header-unauth-btn-login{color:#4b5563;padding:8px 12px;font-size:.875rem;font-weight:700;text-decoration:none}.blog-header-unauth-btn-signup{color:#fff;background-color:var(--primary-color);box-shadow:var(--shadow-sm);border-radius:9999px;padding:8px 20px;font-size:.875rem;font-weight:700;text-decoration:none;transition:transform .2s}.blog-header-unauth-btn-signup:hover{transform:translateY(-1px)}.blog-main{flex:1;width:100%;max-width:800px;margin:0 auto;padding:40px 16px}.blog-back-btn{color:var(--primary-color);align-items:center;gap:8px;margin-bottom:24px;font-size:.95rem;font-weight:700;text-decoration:none;transition:opacity .2s;display:inline-flex}.blog-back-btn:hover{opacity:.8}.blog-title-section{text-align:center;margin-bottom:40px}.blog-title-section h2{color:#111827;margin-bottom:12px;font-size:2rem;font-weight:900}.blog-title-section p{color:#6b7280;font-size:1rem}.blog-list-grid{flex-direction:column;gap:20px;display:flex}.blog-card{border-radius:var(--radius-lg);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);background-color:#fff;padding:24px;text-decoration:none;transition:all .2s;display:block}.blog-card:hover{box-shadow:var(--shadow-md);border-color:var(--primary-light);transform:translateY(-2px)}.blog-card-meta{color:var(--primary-color);margin-bottom:10px;font-size:.85rem;font-weight:700;display:block}.blog-card-title{color:#111827;margin-bottom:12px;font-size:1.25rem;font-weight:800;line-height:1.4;transition:color .2s}.blog-card:hover .blog-card-title{color:var(--primary-color)}.blog-card-excerpt{color:#4b5563;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:16px;font-size:.95rem;line-height:1.6;display:-webkit-box;overflow:hidden}.blog-card-more{color:var(--primary-color);align-items:center;gap:4px;font-size:.9rem;font-weight:700;display:inline-flex}.blog-detail-container{border-radius:var(--radius-lg);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);background-color:#fff;padding:32px 24px}.blog-detail-header{border-bottom:1px solid var(--border-color);margin-bottom:32px;padding-bottom:24px}.blog-detail-date{background-color:var(--primary-bg);color:var(--primary-color);border-radius:var(--radius-full);margin-bottom:16px;padding:4px 12px;font-size:.85rem;font-weight:700;display:inline-block}.blog-detail-title{color:#111827;font-size:1.75rem;font-weight:900;line-height:1.35}.blog-prose{color:#374151;font-size:1.05rem;line-height:1.85}.blog-prose p{margin-bottom:1.5rem}.blog-prose h2{color:#111827;border-bottom:2px solid var(--primary-bg);margin-top:2.5rem;margin-bottom:1.25rem;padding-bottom:8px;font-size:1.4rem;font-weight:800}.blog-prose h3{color:#1f2937;margin-top:2rem;margin-bottom:1rem;font-size:1.2rem;font-weight:800}.blog-prose strong{color:#111827;font-weight:700}.blog-prose a{color:var(--primary-color);font-weight:500;text-decoration:underline;transition:opacity .2s}.blog-prose a:hover{opacity:.8}.blog-prose ul,.blog-prose ol{margin-bottom:1.5rem;padding-left:1.5rem}.blog-prose li{margin-bottom:.5rem}.blog-prose blockquote{border-left:4px solid var(--primary-color);color:#4b5563;border-radius:0 var(--radius-sm) var(--radius-sm) 0;background-color:#f9fafb;margin:1.5rem 0;padding-top:8px;padding-bottom:8px;padding-left:16px;font-style:italic}.blog-prose img{border-radius:var(--radius-md);max-width:100%;height:auto;margin:1.5rem 0}.blog-prose code{border-radius:var(--radius-sm);background-color:#f1f5f9;padding:2px 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