*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #5b6ef5;--primary-dark: #4458e0;--primary-light: #eef0fe;--danger: #ef4444;--danger-light: #fee2e2;--warning: #f59e0b;--warning-light: #fef3c7;--success: #10b981;--success-light: #d1fae5;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827;--white: #ffffff;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);--shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);--radius: 8px;--radius-lg: 12px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, 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.btn-danger{margin-left:0}}#lock-screen{position:fixed;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,#5b6ef5,#8a56e8);display:flex;align-items:center;justify-content:center;z-index:9999}.lock-box{background:#fff;border-radius:20px;padding:48px 40px;text-align:center;width:90%;max-width:360px;box-shadow:0 20px 60px #0003}.lock-icon{font-size:2.5rem;margin-bottom:12px}.lock-title{font-size:1.6rem;font-weight:800;color:#333;margin-bottom:6px}.lock-sub{font-size:.88rem;color:#888;margin-bottom:28px}.lock-form{display:flex;flex-direction:column;gap:12px}.lock-form input{width:100%;padding:13px 16px;border:2px solid #e4e7f5;border-radius:10px;font-size:1rem;outline:none;transition:border-color .2s;text-align:center;letter-spacing:.1em}.lock-form input:focus{border-color:#5b6ef5}.lock-form button{padding:13px;background:linear-gradient(135deg,#5b6ef5,#8a56e8);color:#fff;border:none;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer;transition:opacity .2s}.lock-form button:hover{opacity:.9}.lock-error{margin-top:14px;color:#ef4444;font-size:.85rem;font-weight:600}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-8px)}40%,80%{transform:translate(8px)}}.shake{animation:shake .4s ease}