:root{--primary: #c0392b;--secondary: #2c3e50;--bg: #f5f5f5;--surface: #ffffff;--text: #1a1a1a;--text-muted: #666666;--header-bg: #1a1a2e;--header-text: #ffffff;--font: "Noto Sans JP", sans-serif;--container-w: 900px;--radius: 8px;--section-gap: 32px;--border: #e0e0e0;--danger: #e74c3c;--success: #27ae60;--login-btn: var(--primary);--category-active: var(--primary)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;display:block}.container{max-width:var(--container-w);margin:0 auto;padding:0 20px}.page-loading{display:flex;justify-content:center;align-items:center;height:100vh;font-size:1rem;color:var(--text-muted)}.header{background:var(--header-bg);color:var(--header-text);position:sticky;top:0;z-index:100;box-shadow:0 2px 8px #0003}.header-inner{max-width:var(--container-w);margin:0 auto;padding:0 20px;min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px}.header-logo{font-size:1.1rem;font-weight:700;color:var(--header-text);letter-spacing:.02em}.header-nav{display:flex;align-items:center;gap:16px}.header-nav a,.header-nav button{color:var(--header-text);font-size:.875rem;opacity:.85;background:none;border:none;cursor:pointer;font-family:var(--font);padding:0}.header-nav a:hover,.header-nav button:hover{opacity:1;text-decoration:none}.page{padding:var(--section-gap) 0;min-height:calc(100vh - 60px)}.card{background:var(--surface);border-radius:var(--radius);box-shadow:0 1px 4px #00000014;overflow:hidden}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:.875rem;font-weight:500;margin-bottom:6px;color:var(--text)}.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px 14px;border:1px solid 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var(--primary);display:inline-block}.comment-list{display:grid;gap:12px;margin-bottom:24px}.comment-item{background:var(--surface);border-radius:var(--radius);padding:16px;box-shadow:0 1px 3px #0000000f}.comment-meta{font-size:.8rem;color:var(--text-muted);margin-bottom:6px;display:flex;gap:12px}.comment-name{font-weight:600;color:var(--text)}.comment-body{font-size:.95rem;white-space:pre-wrap}.comment-form{background:var(--surface);border-radius:var(--radius);padding:20px}.admin-layout{display:flex;min-height:100vh}.admin-sidebar{width:220px;background:var(--secondary);color:#fff;flex-shrink:0;padding:24px 0}.admin-sidebar-title{padding:0 20px 20px;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;opacity:.6;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:8px}.admin-sidebar a{display:flex;align-items:center;gap:10px;padding:11px 20px;color:#fffc;font-size:.9rem;transition:background .15s;text-decoration:none}.admin-sidebar a:hover,.admin-sidebar 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