*{box-sizing:border-box;margin:0;padding:0}:root{--primary:#1a1a2e;--primary-light:#16213e;--accent:#e94560;--accent-light:#ff6b81;--success:#2ed573;--warning:#ffa502;--bg:#f5f6fa;--card:#fff;--text:#2f3542;--text-light:#747d8c;--border:#dfe4ea;--radius:12px}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:Noto Sans JP,sans-serif}.app-layout{flex-direction:column;max-width:480px;min-height:100dvh;margin:0 auto;display:flex}.app-header{background:var(--primary);color:#fff;text-align:center;padding:16px}.app-header h1{font-size:18px;font-weight:700}.disclaimer{color:#aaa;margin-top:4px;font-size:10px}.app-main{flex:1;padding:16px 16px 80px}.app-nav{border-top:1px solid var(--border);z-index:100;background:#fff;justify-content:space-around;width:100%;max-width:480px;padding:8px 0;display:flex;position:fixed;bottom:0;left:50%;transform:translate(-50%)}.nav-item{color:var(--text-light);flex-direction:column;align-items:center;gap:2px;font-size:10px;text-decoration:none;transition:color .2s;display:flex}.nav-item.active{color:var(--accent)}.nav-icon{font-size:20px}.card{background:var(--card);border-radius:var(--radius);margin-bottom:12px;padding:16px;box-shadow:0 1px 3px #0000000f}.card-title{color:var(--text-light);margin-bottom:8px;font-size:14px;font-weight:700}.form-group{margin-bottom:16px}.form-group label{color:var(--text-light);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.form-group input,.form-group select,.form-group textarea{border:1px solid var(--border);background:#fff;border-radius:8px;width:100%;padding:10px 12px;font-family:inherit;font-size:16px;transition:border-color .2s}.form-group input:focus,.form-group select:focus{border-color:var(--accent);outline:none}.btn{cursor:pointer;border:none;border-radius:8px;width:100%;padding:14px;font-family:inherit;font-size:16px;font-weight:700;transition:opacity .2s;display:block}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-secondary{background:var(--primary-light);color:#fff}.btn-outline{color:var(--accent);border:2px solid var(--accent);background:0 0}.amount{font-size:28px;font-weight:700}.amount-label{color:var(--text-light);font-size:12px}.amount-positive{color:var(--success)}.amount-negative{color:var(--accent)}.alert{border-radius:8px;margin-bottom:12px;padding:12px;font-size:13px}.alert-warning{color:#856404;background:#fff3cd}.alert-info{color:#0c5460;background:#d1ecf1}.alert-success{color:#155724;background:#d4edda}.loading{min-height:200px;color:var(--text-light);justify-content:center;align-items:center;display:flex}.yen:before{content:"¥"}