:root{--admin-blue: #1a56b0;--admin-blue-dark: #0d3b82;--admin-bg: #f0f4fa;--admin-card: #ffffff;--admin-text: #2c3e5a;--admin-muted: #6b82a0;--admin-border: #dce8f5;--admin-error: #d32f2f;--admin-success: #2e7d32}.admin-page{max-width:820px;margin:0 auto;padding:40px 20px 80px;font-family:Noto Sans JP,sans-serif;color:var(--admin-text);min-height:100vh}.admin-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;padding-bottom:16px;border-bottom:2px solid var(--admin-border)}.admin-header h1{font-family:"Noto Serif JP",serif;font-size:22px;font-weight:700;color:var(--admin-text)}.admin-user-info{display:flex;align-items:center;gap:12px;font-size:13px}.admin-user-email{color:var(--admin-muted)}.admin-logout-btn{background:transparent;border:1px solid var(--admin-border);color:var(--admin-muted);padding:6px 16px;font-size:12px;cursor:pointer;font-family:inherit;transition:all .2s}.admin-logout-btn:hover{border-color:var(--admin-error);color:var(--admin-error)}.admin-tabs{display:flex;gap:0;margin-bottom:24px;border-bottom:2px solid var(--admin-border)}.admin-tab{background:transparent;border:none;padding:12px 28px;font-size:15px;font-weight:500;color:var(--admin-muted);cursor:pointer;font-family:inherit;border-bottom:3px solid transparent;margin-bottom:-2px;transition:all .2s}.admin-tab:hover{color:var(--admin-text)}.admin-tab.active{color:var(--admin-blue);border-bottom-color:var(--admin-blue);font-weight:600}.admin-tab-content{display:none}.admin-tab-content.active{display:block}.admin-login-card{max-width:400px;margin:60px auto 0;background:var(--admin-card);padding:40px 32px;box-shadow:0 4px 24px #0d1f3c14}.admin-login-card h2{font-family:"Noto Serif JP",serif;font-size:20px;font-weight:700;text-align:center;margin-bottom:8px}.admin-login-card p{font-size:13px;color:var(--admin-muted);text-align:center;margin-bottom:28px;line-height:1.8}.admin-field{margin-bottom:20px}.admin-field label{display:block;font-size:13px;font-weight:500;margin-bottom:6px}.admin-field input{width:100%;padding:10px 14px;font-size:14px;font-family:inherit;border:1px solid var(--admin-border);background:#fff;transition:border-color .2s}.admin-field input:focus{outline:none;border-color:var(--admin-blue)}.admin-login-btn{width:100%;padding:12px;font-size:15px;font-weight:600;background:var(--admin-blue);color:#fff;border:none;cursor:pointer;font-family:inherit;transition:background .2s}.admin-login-btn:hover{background:var(--admin-blue-dark)}.admin-login-btn:disabled{opacity:.6;cursor:not-allowed}.admin-error-msg{display:none;background:#fef0f0;color:var(--admin-error);padding:10px 14px;font-size:13px;margin-bottom:20px;border-left:3px solid var(--admin-error)}.admin-back-link{display:block;text-align:center;margin-top:24px;font-size:13px;color:var(--admin-muted);text-decoration:none;transition:color .2s}.admin-back-link:hover{color:var(--admin-blue)}.admin-section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.admin-section-header h2{font-family:"Noto Serif JP",serif;font-size:18px;font-weight:700}.admin-add-btn{background:var(--admin-blue);color:#fff;border:none;padding:10px 24px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .2s}.admin-add-btn:hover{background:var(--admin-blue-dark)}.admin-news-item{background:var(--admin-card);padding:20px 24px;margin-bottom:12px;border-left:3px solid var(--admin-blue);box-shadow:0 1px 6px #0d1f3c0d}.admin-news-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px}.admin-news-date{font-size:13px;color:var(--admin-muted);letter-spacing:.03em}.admin-news-cat{font-size:11px;font-weight:600;color:var(--admin-blue);background:#e8f1fb;padding:2px 10px;letter-spacing:.04em}.admin-news-title{font-size:15px;font-weight:600;margin-bottom:12px;line-height:1.5}.admin-news-actions{display:flex;gap:8px}.admin-btn-edit,.admin-btn-delete{padding:6px 18px;font-size:13px;font-weight:500;border:none;cursor:pointer;font-family:inherit;transition:all .2s}.admin-btn-edit{background:#e8f1fb;color:var(--admin-blue)}.admin-btn-edit:hover{background:var(--admin-blue);color:#fff}.admin-btn-delete{background:#fef0f0;color:var(--admin-error)}.admin-btn-delete:hover{background:var(--admin-error);color:#fff}.admin-form-card{background:var(--admin-card);padding:32px 28px;box-shadow:0 2px 12px #0d1f3c0f}.admin-form-card h2{font-family:"Noto Serif JP",serif;font-size:18px;font-weight:700;margin-bottom:24px;padding-bottom:12px;border-bottom:1px solid var(--admin-border)}.admin-form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}.admin-form-field{margin-bottom:20px}.admin-form-field label{display:block;font-size:13px;font-weight:500;margin-bottom:6px}.admin-form-field input,.admin-form-field select,.admin-form-field textarea{width:100%;padding:10px 14px;font-size:14px;font-family:inherit;border:1px solid var(--admin-border);background:#fff;transition:border-color .2s}.admin-form-field input:focus,.admin-form-field select:focus,.admin-form-field textarea:focus{outline:none;border-color:var(--admin-blue)}.admin-form-field textarea{min-height:120px;resize:vertical;line-height:1.8}.admin-form-actions{display:flex;gap:12px;margin-top:28px}.admin-save-btn{background:var(--admin-blue);color:#fff;border:none;padding:12px 32px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .2s}.admin-save-btn:hover{background:var(--admin-blue-dark)}.admin-save-btn:disabled{opacity:.6;cursor:not-allowed}.admin-cancel-btn{background:transparent;color:var(--admin-muted);border:1px solid var(--admin-border);padding:12px 32px;font-size:14px;font-weight:500;cursor:pointer;font-family:inherit;transition:all .2s}.admin-cancel-btn:hover{border-color:var(--admin-muted);color:var(--admin-text)}.text-sub-tabs{display:flex;flex-wrap:wrap;gap:0;margin-bottom:20px;border-bottom:1px solid var(--admin-border)}.text-sub-tab{background:transparent;border:none;padding:8px 16px;font-size:13px;font-weight:500;color:var(--admin-muted);cursor:pointer;font-family:inherit;border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .2s;white-space:nowrap}.text-sub-tab:hover{color:var(--admin-text)}.text-sub-tab.active{color:var(--admin-blue);border-bottom-color:var(--admin-blue);font-weight:600}.text-list-container{display:flex;flex-direction:column;gap:8px}.text-item{background:var(--admin-card);padding:16px 20px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:12px;box-shadow:0 1px 4px #0d1f3c0a;border-left:3px solid var(--admin-border);transition:border-color .2s}.text-item:hover{border-left-color:var(--admin-blue)}.text-item-edited{border-left-color:var(--admin-success)}.text-default-badge{display:inline-block;font-size:10px;font-weight:600;color:var(--admin-muted);background:#eef2f7;padding:1px 8px;margin-left:8px;letter-spacing:.04em;vertical-align:middle}.text-item-label{font-size:14px;font-weight:600;color:var(--admin-text);margin-bottom:4px}.text-item-preview{font-size:13px;color:var(--admin-muted);line-height:1.5;grid-column:1}.text-item .admin-btn-edit{grid-column:2;grid-row:1 / 3;align-self:center}@media (max-width: 640px){.admin-page{padding:24px 16px 60px}.admin-form-row{grid-template-columns:1fr;gap:0}.admin-login-card{padding:28px 20px;margin-top:32px}.admin-header{flex-direction:column;gap:12px;align-items:flex-start}.admin-tabs{flex-wrap:wrap}.admin-tab{padding:10px 16px;font-size:14px}.text-sub-tabs{flex-wrap:wrap}.text-sub-tab{padding:6px 12px;font-size:12px}.text-item{grid-template-columns:1fr}.text-item .admin-btn-edit{grid-column:1;grid-row:auto;margin-top:8px}}