:root{--bg: #f5f7fa;--surface: #fff;--text: #1f2933;--muted: #6b7785;--border: #dde3ea;--primary: #1f7a5c;--primary-dark: #17604a;--danger: #c0392b;--radius: 10px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.6;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,Yu Gothic,Meiryo,sans-serif}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}h1{font-size:1.5rem;margin:0 0 1rem}h2{font-size:1.15rem;margin:1.75rem 0 .75rem}h3{font-size:1.05rem;margin:0}.container{max-width:960px;margin:0 auto;padding:0 16px}.main{padding-top:24px;padding-bottom:48px;min-height:70vh}.narrow{max-width:480px;margin:0 auto}.narrow-wide{max-width:720px;margin:0 auto}.muted{color:var(--muted)}.small{font-size:.85rem;margin:.25rem 0}.center{text-align:center}.pre{white-space:pre-wrap;word-break:break-word;margin:.5rem 0}.header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:56px;flex-wrap:wrap}.brand{font-weight:800;font-size:1.25rem;color:var(--primary)}.brand:hover{text-decoration:none}.nav{display:flex;align-items:center;gap:16px}.nav a{color:var(--text);padding:4px 0}.nav a.active{color:var(--primary);font-weight:700}.nav a.btn-primary{color:#fff;padding:4px 12px}.nav-user{color:var(--muted);font-size:.9rem}.menu-toggle{display:none;background:none;border:1px solid var(--border);border-radius:6px;font-size:1.2rem;padding:2px 10px;cursor:pointer}.footer{text-align:center;color:var(--muted);font-size:.8rem;padding:24px 0}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:16px}.card-link{display:block;color:inherit;transition:box-shadow .15s,transform .15s}.card-link:hover{text-decoration:none;box-shadow:0 4px 14px #00000014;transform:translateY(-1px)}.card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:8px;flex-wrap:wrap}.card-head h1{margin:0}.card-when{font-weight:600;margin:.5rem 0}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.grid .card{margin:0}.empty{text-align:center;color:var(--muted);background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius);padding:32px 16px}.empty .btn{margin-top:8px}.tags{display:flex;flex-wrap:wrap;gap:6px;margin:.5rem 0}.tag{background:#eef2f6;border-radius:999px;padding:2px 10px;font-size:.8rem}.badge{display:inline-block;border-radius:999px;padding:2px 10px;font-size:.78rem;font-weight:700;white-space:nowrap}.badge-green{background:#dff5ea;color:#14683f}.badge-blue{background:#dcecff;color:#14509c}.badge-yellow{background:#fff3cd;color:#8a6200}.badge-red{background:#fde1de;color:#a12a1d}.badge-gold{background:#ffe9a8;color:#7a5200}.badge-teal{background:#d3f3ee;color:#0b5d52}.badge-gray{background:#e8ebef;color:#52606d}.badges{display:inline-flex;gap:6px;flex-wrap:wrap;align-items:center}.card-premium{border:2px solid #e0a800;background:#fffbea}.plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.plan-grid .card{margin:0}.plan-premium{border:2px solid #e0a800}.price{font-size:1.6rem;font-weight:800;margin:.25rem 0 .75rem}.table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin-bottom:16px}.table th,.table td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left}.table thead th{background:#eef2f6}.alert-ok{background:#dff5ea;color:#14683f;border:1px solid #b5e3c9}.alert-info{background:#fff3cd;color:#6b4e00;border:1px solid #f0dc9a}.inline-form{display:flex;gap:8px;flex-wrap:wrap;align-items:flex-end}.inline-form label{flex:1;min-width:130px}.form{display:flex;flex-direction:column;gap:14px}.form h2{margin:0}label{display:flex;flex-direction:column;gap:4px;font-size:.9rem;font-weight:600}input,select,textarea{font:inherit;font-weight:400;padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);width:100%}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:-1px}.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}.row-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}.filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}.btn{display:inline-block;font:inherit;font-weight:600;cursor:pointer;text-align:center;padding:8px 16px;border-radius:8px;border:1px solid var(--border);background:#fff;color:var(--text)}.btn:hover{text-decoration:none;background:#f0f3f6}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-danger{background:#fff;color:var(--danger);border-color:var(--danger)}.btn-danger:hover{background:#fdecea}.btn-ghost{background:none}.btn-small{padding:4px 12px;font-size:.85rem}.alert{padding:10px 14px;border-radius:8px;margin-bottom:12px}.alert-error{background:#fde1de;color:#a12a1d;border:1px solid #f5b5ae}.list{list-style:none;margin:0;padding:16px}.list li{padding:12px 0;border-bottom:1px solid var(--border)}.list li:last-child{border-bottom:none}.card>.list{padding:0}.card>h2:first-child{margin-top:0}.dl{display:grid;grid-template-columns:7em 1fr;gap:6px 12px;margin:12px 0}.dl dt{color:var(--muted)}.dl dd{margin:0}.chat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px;height:50vh;overflow-y:auto;display:flex;flex-direction:column;gap:10px;margin-bottom:12px}.msg{max-width:80%;align-self:flex-start}.msg.mine{align-self:flex-end;text-align:right}.msg-meta{font-size:.72rem;color:var(--muted);margin-bottom:2px}.msg-body{background:#eef2f6;border-radius:12px;padding:8px 12px;display:inline-block;text-align:left;white-space:pre-wrap;word-break:break-word}.msg.mine .msg-body{background:var(--primary);color:#fff}.chat-form{display:flex;gap:8px;align-items:flex-end}.chat-form textarea{flex:1;resize:vertical}@media (max-width: 640px){.menu-toggle{display:block}.nav{display:none;width:100%;flex-direction:column;align-items:flex-start;gap:8px;padding:8px 0 12px}.nav.open{display:flex}.dl{grid-template-columns:5.5em 1fr}h1{font-size:1.3rem}.msg{max-width:92%}}