:root {
            --neon-cyan: #00ffff;
            --neon-magenta: #ff00ff;
            --neon-green: #39ff14;
            --neon-red: #ff1b1b;
            --neon-yellow: #f1f759;
            --bg-primary: #02001a;
            --bg-secondary: rgba(14, 2, 54, 0.4);
            --text-primary: #e0e0e0;
            --text-secondary: #a3a1b9;
            --border-color: rgba(0, 255, 255, 0.3);
        }
 
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            -webkit-tap-highlight-color: transparent;
        }
 
        html {
            scrollbar-width: thin;
            scrollbar-color: var(--neon-cyan) var(--bg-primary);
        }
 
        body {
            color: var(--text-primary);
            font-family: 'Roboto Mono', monospace;
            line-height: 1.7;
            padding: 16px;
            overflow-x: hidden;
            min-height: 100vh;
            background-attachment: fixed;
            background: #2c0735;
            background: linear-gradient(135deg, #2c0735 0%, #1a0420 50%, #0f0515 100%);
            min-height: 100vh;
        }
 
        #particles-js {
            position: fixed;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            z-index: 0;
        }
 
        h2 {
            font-family: 'Turret Road', sans-serif;
            text-shadow: 0 0 10px #ff00ff, 0 0 20px #ff00ff;
            letter-spacing: 2px;
        }
 
        h1 {
            font-size: 2rem;
            text-align: center;
            margin-bottom: 5px;
            color: #fff;
            margin-top: 20px;
        }
 
        h2 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: #fff;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
 
        .container {
            max-width: 1000px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
 
        .card {
            border-radius: 16px;
            padding: 25px;
            backdrop-filter: blur(1px);
            -webkit-backdrop-filter: blur(1px);
            transition: all 0.3s ease-in-out;
            background: rgba(168, 85, 247, 0.05);
            border: 1px solid var(--border-color);
            box-shadow: 0 8px 32px 0 rgba(168, 85, 247, 0.15);
            animation: slideIn 0.5s ease-out;
        }
 
        .card:hover {
            background: rgba(168, 85, 247, 0.08);
            border-color: rgba(168, 85, 247, 0.3);
            transform: translateY(-5px);
            box-shadow: 0 12px 40px 0 rgba(168, 85, 247, 0.25);
        }
 
        .form-group {
            margin-bottom: 20px;
        }
 
        label {
            display: block;
            margin-bottom: 8px;
            text-transform: uppercase;
            letter-spacing: 1px;
            display: block;               
            font-size: 0.750rem;          
            font-weight: 600;             
            color: rgb(192, 132, 252);   
        }
 
        select,
        input,
        textarea {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid rgba(192, 132, 252, 0.5);
            border-radius: 12px;
            font-size: 1rem;
            background-color: rgba(168, 85, 247, 0.08);
            color: var(--text-primary);
            font-family: 'Roboto Mono', monospace;
            transition: all 0.2s;
            box-shadow: inset 0 0 5px rgba(0, 255, 255, 0.1);
        }
 
        select:focus,
        input:focus,
        textarea:focus {
            border-color: var(--neon-cyan);
            outline: none;
            box-shadow: 0 0 10px var(--neon-cyan), inset 0 0 8px rgba(0, 255, 255, 0.3);
        }
 
        textarea:hover,
        .log-container:hover {
            border-color: var(--neon-cyan);
        }

        input[type="file"] {
            padding: 10px;
        }
 
        input[type="file"]::file-selector-button {
            background: transparent;
            border: 1px solid var(--neon-cyan);
            color: var(--neon-cyan);
            padding: 8px 12px;
            border-radius: 5px;
            cursor: pointer;
            transition: all 0.2s;
        }
 
        input[type="file"]::file-selector-button:hover {
            background: var(--neon-cyan);
            color: var(--bg-primary);
            box-shadow: 0 0 10px var(--neon-cyan);
        }
 
        button,
        .btn {
            width: 100%;
            padding: 14px;
            border: 1px solid var(--neon-cyan);
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
            font-family: 'Turret Road', sans-serif;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            position: relative;
            overflow: hidden;
            background: transparent;
            backdrop-filter: blur(2px);
            color: var(--neon-cyan);
        }
 
        button:disabled,
        .btn:disabled {
            border-color: var(--text-secondary);
            color: var(--text-secondary);
            cursor: not-allowed;
            text-shadow: none;
            box-shadow: none;
        }
 
        button:hover:not(:disabled) {
            background-color: var(--neon-cyan);
            color: var(--bg-primary);
            box-shadow: 0 0 20px var(--neon-cyan);
        }
 
        .button-group {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }
 
        @media (min-width: 600px) {
            .button-group {
                grid-template-columns: repeat(3, 1fr);
            }
        }
 
        #startBtn {
            border-color: var(--neon-green);
            color: var(--neon-green);
        }
 
        #startBtn:hover:not(:disabled) {
            background-color: var(--neon-green);
            box-shadow: 0 0 20px var(--neon-green);
            color: var(--bg-primary);
        }
 
        #stopBtn {
            border-color: var(--neon-yellow);
            color: var(--neon-yellow);
        }
 
        #stopBtn:hover:not(:disabled) {
            background-color: var(--neon-yellow);
            box-shadow: 0 0 20px var(--neon-yellow);
            color: var(--bg-primary);
        }
 
        .progress-container {
            margin: 20px 0 10px;
        }
 
        progress {
            width: 100%;
            height: 10px;
            border-radius: 5px;
            background-color: rgba(0, 255, 255, 0.1);
            border: 1px solid var(--border-color);
        }
 
        progress::-webkit-progress-bar {
            background-color: transparent;
            border-radius: 5px;
        }
 
        progress::-webkit-progress-value {
            background: linear-gradient(90deg, var(--neon-magenta), var(--neon-cyan));
            border-radius: 5px;
            transition: width 0.3s ease;
            box-shadow: 0 0 10px var(--neon-cyan);
        }
 
        #progressText {
            text-align: center;
            margin-top: 8px;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
 
        .log-container {
            max-height: 350px;
            overflow-y: auto;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 15px;
            background-color: rgba(2, 0, 26, 0.7);
            font-size: 0.9rem;
        }
 
        .log-container::-webkit-scrollbar {
            width: 8px;
        }
 
        .log-container::-webkit-scrollbar-track {
            background: transparent;
        }
 
        .log-container::-webkit-scrollbar-thumb {
            background-color: var(--neon-cyan);
            border-radius: 4px;
        }
 
        .log-entry {
            margin-bottom: 10px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(0, 255, 255, 0.1);
            animation: fadeIn 0.5s ease;
        }
 
        .log-success {
            color: var(--neon-green);
        }
 
        .log-error {
            color: var(--neon-red);
        }
 
        .log-warning {
            color: var(--neon-yellow);
        }
 
        .log-info {
            color: var(--neon-cyan);
        }
 
        .translation-log {
            border-left: 2px solid var(--neon-magenta);
            padding-left: 10px;
            margin: 8px 0;
        }
 
        .translation-original {
            color: var(--text-secondary);
            word-break: break-word;
        }
 
        .translation-result {
            color: var(--neon-green);
            word-break: break-word;
            font-weight: bold;
        }
 
        .translation-original strong,
        .translation-result strong {
            text-transform: uppercase;
            font-size: 0.8em;
            letter-spacing: 1px;
            color: var(--neon-magenta);
        }
 
        #downloadResultBtn,
        #previewResultBtn {
            margin-bottom: 10px;
            border-color: var(--neon-green);
            color: var(--neon-green);
        }
 
        #downloadResultBtn:hover:not(:disabled),
        #previewResultBtn:hover:not(:disabled) {
            background-color: var(--neon-green);
            box-shadow: 0 0 20px var(--neon-green);
            color: var(--bg-primary);
        }
 
        .help-btn {
            display: block;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            padding: 10px 15px;
            border-radius: 12px;
            backdrop-filter: blur(2px);
            text-decoration: none;
            margin-bottom: 10px;
            transition: all 0.2s ease;
        }
 
        .help-btn:hover {
            border-color: var(--neon-magenta);
            color: var(--neon-magenta);
            background: rgba(255, 0, 255, 0.1);
        }
 
        .help-icon {
            margin-right: 10px;
        }
 
        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(2, 0, 26, 0.8);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            backdrop-filter: blur(10px);
            padding: 15px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
        }
 
        .modal:not(.hidden) {
            opacity: 1;
            visibility: visible;
        }
 
        .modal-content {
            background-color: var(--bg-primary);
            padding: 30px;
            border-radius: 12px;
            width: 100%;
            max-width: 500px;
            border: 1px solid var(--neon-red);
            box-shadow: 0 0 25px rgba(255, 27, 27, 0.5);
            transform: scale(0.95);
            transition: transform 0.3s;
        }
 
        .modal:not(.hidden) .modal-content {
            transform: scale(1);
        }
 
        .modal h3 {
            font-family: 'Turret Road';
            color: var(--neon-red);
            text-shadow: 0 0 10px var(--neon-red);
        }
 
        .modal-footer {
            margin-top: 25px;
            display: flex;
            gap: 15px;
            justify-content: flex-end;
        }
 
        .modal ul {
            margin: 15px 0 15px 20px;
        }
 
        .notice-box, .usage-tips {
            padding: 20px;
        }
        
        .notice-list { margin: 12px 0 12px 20px; list-style-type: '» '; }
        .notice-list li { padding-left: 10px; margin-bottom: 8px;}
 
        strong {
            color: var(--neon-yellow);
        }

        .footer-note {
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-secondary);
            opacity: 0.6;
            margin-top: 30px;
            letter-spacing: 1px;
        }
 
        .hidden {
            display: none !important;
        }
 
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
 
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
 
        /* Custom Select Style */
        #translationModel {
            border: 1px solid var(--neon-magenta);
            color: var(--neon-magenta);
            font-weight: bold;
        }
 
        #translationModel:focus {
            box-shadow: 0 0 10px var(--neon-magenta);
        }
 
        .back-btn {
            display: inline-block;
            width: auto;
            padding: 12px 24px;
            border: 1px solid var(--neon-cyan);
            border-radius: 9999px;
            font-size: 1rem;
            font-weight: 700;
            font-family: 'Turret Road', sans-serif;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            background: transparent;
            color: var(--neon-cyan);
            text-decoration: none;
            transition: all 0.3s ease;
            box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
        }
 
        .back-btn:hover {
            background-color: var(--neon-cyan);
            color: var(--bg-primary);
            box-shadow: 0 0 20px var(--neon-cyan);
        }

        .grid-bg {
            background-image:
                linear-gradient(rgba(168, 85, 247, 0.1) 1px, transparent 1px),
                linear-gradient(90deg, rgba(168, 85, 247, 0.1) 1px, transparent 1px);
            background-size: 50px 50px;
            position: fixed;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            z-index: 0;
            opacity: 0.3;
        }

        .floating {
            animation: floating 6s ease-in-out infinite;
        }
 
        @keyframes floating {
 
            0%,
            100% {
                transform: translateY(0px);
            }
 
            50% {
                transform: translateY(-20px);
            }
        }
 
        @keyframes slideIn {
            from {
                transform: translateY(30px);
                opacity: 0;
            }
 
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        @media (min-width: 768px) {
            h1 {
                font-size: 4.5rem;
            }
        }

        .cyber-grid {
            background-image:
                repeating-linear-gradient(0deg,
                    transparent,
                    transparent 2px,
                    rgba(168, 85, 247, 0.03) 2px,
                    rgba(168, 85, 247, 0.03) 4px);
        }