:root{--bg: #f5f4f0;--surface: #ffffff;--text: #1a1a1a;--muted: #888880;--border: #deded8;--accent: #1a1a1a;--danger: #b04040;--radius: 4px;--shadow: 0 1px 6px rgba(0,0,0,.06);font-family:Hiragino Sans,PingFang SC,Noto Sans SC,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;font-size:15px;line-height:1.6;font-weight:400;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh}a{color:inherit}button,input,select,textarea{font:inherit}.layout{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:52px;border-bottom:1px solid var(--border);background:var(--surface);letter-spacing:.02em}.topbar-logo{font-size:14px;font-weight:600;text-decoration:none;color:var(--text);letter-spacing:.04em;text-transform:uppercase}.topbar-link{font-size:13px;color:var(--muted);text-decoration:none}.topbar-link:hover{color:var(--text)}main{flex:1;padding:36px 20px 60px;max-width:680px;width:100%;margin:0 auto}main.main-school{padding-top:28px;max-width:420px}.section{margin-bottom:28px}.section-title{font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.panel-row{display:flex;align-items:flex-start;gap:16px;padding:18px 20px;border-bottom:1px solid var(--border)}.panel-row:last-child{border-bottom:none}.panel-row-label{flex:0 0 110px;font-size:13px;color:var(--muted);padding-top:9px}.panel-row-content{flex:1;min-width:0}.panel-body{padding:20px}textarea{display:block;width:100%;border:1px solid var(--border);border-radius:var(--radius);padding:9px 11px;background:var(--surface);color:var(--text);outline:none;resize:vertical;min-height:64px;line-height:1.5}textarea:focus{border-color:var(--accent)}input[type=text],input[type=password],input[type=url],input[type=email]{display:block;width:100%;border:1px solid var(--border);border-radius:var(--radius);padding:9px 11px;background:var(--surface);color:var(--text);outline:none;transition:border-color .15s}input:focus{border-color:var(--accent)}.input-hint{font-size:12px;color:var(--muted);margin-top:5px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--border);border-radius:var(--radius);padding:8px 16px;font-size:13px;cursor:pointer;background:var(--surface);color:var(--text);text-decoration:none;white-space:nowrap;transition:background .12s,border-color .12s}.btn:hover:not(:disabled){background:var(--bg)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:#333;border-color:#333}.btn-danger{border-color:#e8c5c5;color:var(--danger);background:#fdf5f5}.btn-danger:hover:not(:disabled){background:#fde8e8}.btn-sm{padding:5px 11px;font-size:12px}.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.muted{color:var(--muted)}.small{font-size:13px}.mono{font-family:ui-monospace,SF Mono,Menlo,Consolas,Liberation Mono,monospace;font-size:12.5px;word-break:break-all}.error{color:var(--danger);font-size:13px;margin:6px 0 0}.tag{display:inline-block;padding:1px 8px;font-size:11px;font-weight:600;border-radius:2px;letter-spacing:.03em}.tag-warn{background:#fef3c7;color:#92400e}.tag-danger{background:#fee2e2;color:#991b1b}.tag-ok{background:#dcfce7;color:#166534}.notice{border-left:3px solid var(--border);padding:10px 14px;font-size:13px;color:var(--muted);background:var(--bg);border-radius:0 var(--radius) var(--radius) 0}.notice.notice-warn{border-left-color:#f59e0b;background:#fffbeb;color:#78350f}.school-list{display:flex;flex-direction:column;gap:0}.school-item{background:var(--surface);border:1px solid var(--border);border-bottom:none;padding:16px 20px}.school-item:first-child{border-radius:var(--radius) var(--radius) 0 0}.school-item:last-child{border-bottom:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius)}.school-item:only-child{border-radius:var(--radius);border-bottom:1px solid var(--border)}.school-item-header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:10px}.school-name{font-weight:600;font-size:15px}.school-slug{font-size:12px;color:var(--muted);margin-left:6px}.school-url-row{display:flex;flex-direction:column;gap:4px;margin:0 0 12px;padding-bottom:12px;border-bottom:1px solid var(--border)}.school-url-label{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}.school-url-value{font-size:13px;line-height:1.45}.school-message-block{margin-bottom:14px}.school-message-label{display:block;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:6px}.school-message-actions{margin-top:8px}.school-item-meta{display:flex;flex-wrap:wrap;gap:6px 20px;font-size:13px;color:var(--muted);margin-bottom:12px}.school-item-actions{display:flex;flex-wrap:wrap;gap:8px}.qr-preview{margin-top:14px;padding:16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);display:inline-flex;flex-direction:column;align-items:center;gap:12px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px;background:#00000059;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.modal-panel{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 20px 48px #0000002e;overflow:hidden}.modal-panel.modal-wide{max-width:560px}.preview-dual{display:flex;flex-wrap:wrap;gap:28px;justify-content:center;align-items:flex-start;margin-top:8px}.preview-dual-col{flex:0 1 auto;text-align:center;min-width:0}.preview-dual-col p{margin:0 0 10px;font-size:12px;color:var(--muted);letter-spacing:.02em}.modal-body{padding:28px 28px 20px}.modal-title{margin:0 0 6px;font-size:16px;font-weight:600;letter-spacing:-.01em}.modal-step{font-size:11px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase;display:block;margin-bottom:16px}.modal-desc{font-size:14px;color:var(--text);margin:0 0 14px}.modal-list{margin:0;padding-left:1.2rem;font-size:13px;color:var(--muted);line-height:1.7}.modal-list li{margin-bottom:6px}.modal-list li:last-child{margin-bottom:0}.modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:14px 20px;border-top:1px solid var(--border);background:var(--bg)}