:root{--bg:#f5f6f8;--card:#fff;--text:#1c2230;--muted:#667085;--border:#e2e6ec;--accent:#2f6fed;--accent-dark:#1f56c4;--danger:#c93b3b;--ok:#1f9d55;--warn:#b7791f;--radius:12px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:Yu Gothic UI,Meiryo,Hiragino Sans,Noto Sans JP,system-ui,sans-serif;font-size:15px;line-height:1.7}a{color:var(--accent)}h1{margin:0 0 .5rem;font-size:1.7rem}h2{margin:0 0 .75rem;font-size:1.25rem}h3{margin:1rem 0 .5rem;font-size:1.05rem}p{margin:.4rem 0}.muted{color:var(--muted)}.small{font-size:.85rem}.container{max-width:960px;margin:0 auto;padding:0 20px}.main{min-height:60vh;padding:32px 20px 56px}.site-header{color:#fff;background:#171c2a}.header-inner{justify-content:space-between;align-items:center;height:60px;display:flex}.brand{color:#fff;font-size:1.1rem;font-weight:700;text-decoration:none}.brand-sub{opacity:.75;margin-left:4px;font-size:.9rem;font-weight:400}.nav{align-items:center;gap:18px;display:flex}.nav a{color:#e5e9f2;font-size:.95rem;text-decoration:none}.nav a:hover{color:#fff}.site-footer{border-top:1px solid var(--border);background:#fff;margin-top:40px;padding:24px 0}.footer-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.footer-links{flex-wrap:wrap;gap:16px;font-size:.9rem;display:flex}.btn{background:var(--accent);cursor:pointer;border:1px solid #0000;border-radius:8px;padding:10px 20px;font-family:inherit;font-size:.95rem;line-height:1.4;text-decoration:none;display:inline-block;color:#fff!important}.btn:hover{background:var(--accent-dark)}.btn:disabled{opacity:.55;cursor:default}.btn-secondary{background:#fff;border-color:#c9ced8;color:var(--text)!important}.btn-secondary:hover{background:#f0f2f5}.btn-lg{padding:14px 28px;font-size:1.05rem}.btn-sm{padding:6px 14px;font-size:.85rem}.link-btn{color:#e5e9f2;cursor:pointer;background:0 0;border:none;padding:0;font-family:inherit;font-size:.95rem}.link-btn:hover{color:#fff}.actions{flex-wrap:wrap;align-items:center;gap:12px;margin-top:16px;display:flex}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px;padding:24px 28px}.card-title{margin-top:0}.form{max-width:460px}label{color:var(--muted);margin-top:14px;font-size:.9rem;display:block}input[type=email],input[type=password],input[type=text]{border:1px solid #c9ced8;border-radius:8px;width:100%;margin-top:4px;padding:10px 12px;font-family:inherit;font-size:1rem}input:focus{outline:2px solid var(--accent);border-color:var(--accent)}.check{color:var(--text);align-items:flex-start;gap:10px;margin-top:12px;font-size:.95rem;display:flex}.check input{margin-top:5px}.alert{border-radius:8px;margin:12px 0;padding:12px 14px;font-size:.95rem}.alert-info{color:#1e3a7a;background:#eef3ff;border:1px solid #c6d6fb}.alert-error{color:#8a1f1f;background:#fdecec;border:1px solid #f5c2c2}.alert-success{color:#145c33;background:#e8f7ee;border:1px solid #b9e5c9}.alert-warn{color:#7a5200;background:#fff7e6;border:1px solid #f3d99a}.spinner{border:2px solid #d9dde5;border-top-color:var(--accent);vertical-align:-2px;border-radius:50%;width:14px;height:14px;animation:.9s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.hero{padding:24px 0 8px}.hero h1{font-size:2rem}.plans{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin:16px 0;display:grid}.plan{border:2px solid var(--border);border-radius:var(--radius);background:#fff;flex-direction:column;padding:22px 24px;display:flex}.plan.selected{border-color:var(--accent);box-shadow:0 0 0 3px #2f6fed26}.plan h3{margin:0 0 6px;font-size:1.15rem}.price{margin:6px 0;font-size:1.6rem;font-weight:700}.price small{color:var(--muted);font-size:.85rem;font-weight:400}.plan ul{margin:8px 0 12px;padding-left:1.2em}.plan li{margin:4px 0}.plan .grow{flex:1}.badge{color:#1e3a7a;vertical-align:middle;background:#eef3ff;border-radius:999px;margin-left:6px;padding:2px 8px;font-size:.75rem;display:inline-block}.summary{border-collapse:collapse;width:100%;margin:12px 0;font-size:.95rem}.summary th,.summary td{border-top:1px solid var(--border);text-align:left;vertical-align:top;padding:10px 8px}.summary th{width:34%;color:var(--muted);font-weight:500}.summary tr:first-child th,.summary tr:first-child td{border-top:none}.total{font-size:1.25rem;font-weight:700}.kv{grid-template-columns:160px 1fr;gap:6px 12px;font-size:.95rem;display:grid}.kv dt{color:var(--muted)}.kv dd{margin:0}.progress{background:#e7eaf0;border-radius:5px;height:10px;margin:8px 0;overflow:hidden}.progress>div{background:var(--accent);height:100%}.faq dt{margin-top:12px;font-weight:600}.faq dd{color:var(--muted);margin:4px 0 0}@media (max-width:640px){.header-inner{flex-wrap:wrap;gap:8px;height:auto;padding:10px 0}.kv{grid-template-columns:1fr}.card{padding:18px}}