/* 自定義樣式補充 */
        body {
            background-color: #050505;
            color: #e0e0e0;
            font-family: 'Inter', sans-serif;
            overflow-x: hidden;
        }

        h1, h2, h3, .brand-font { font-family: 'Orbitron', sans-serif; }
        .tech-font { font-family: 'Rajdhani', sans-serif; }

        /* 滾動條隱藏但可滾動 */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: #0a0a0a; }
        ::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: #00f0ff; }

        /* 霓虹文字效果 */
        .neon-text { text-shadow: 0 0 10px rgba(0, 240, 255, 0.5), 0 0 20px rgba(0, 240, 255, 0.3); }

        /* 玻璃擬態卡片 */
        .glass-card {
            background: rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: all 0.4s ease;
        }

        .glass-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            transform: translateY(-5px);
            box-shadow: 0 10px 30px -10px rgba(0, 240, 255, 0.15);
        }

        /* 閃爍光標 */
        .cursor::after {
            content: '';
            display: inline-block;
            width: 8px;
            height: 1em;
            background-color: #00f0ff;
            margin-left: 5px;
            animation: blink 1s infinite;
            vertical-align: middle;
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0; }
        }

        /* 加載動畫遮罩 */
        #loader {
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            background: #000;
            z-index: 9999;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-direction: column;
            transition: opacity 0.8s ease-out, visibility 0.8s ease-out;
        }
        
        .loader-bar {
            width: 200px; height: 2px;
            background: #111;
            margin-top: 20px;
            position: relative;
            overflow: hidden;
        }
        
        .loader-progress {
            position: absolute; left: 0; top: 0; height: 100%; width: 0%;
            background: #00f0ff;
            box-shadow: 0 0 10px #00f0ff;
            animation: load 2s ease-in-out forwards;
        }

        @keyframes load {
            0% { width: 0%; }
            50% { width: 40%; }
            100% { width: 100%; }
        }

        /* 語言切換按鈕樣式 */
        .lang-btn {
            cursor: pointer; opacity: 0.5; transition: all 0.3s;
        }
        .lang-btn.active, .lang-btn:hover {
            opacity: 1; color: #00f0ff; font-weight: bold;
        }

        /* 隱私政策頁面樣式 */
        #privacy-policy-page {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            background-color: #050505;
            z-index: 200;
            overflow-y: auto;
            transform: translateY(100%);
            transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
            padding-top: 80px;
            display: none;
        }

        #privacy-policy-page.active {
            transform: translateY(0);
            display: block;
        }

        /* Contact 彈窗樣式 */
        #contact-page {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            background-color: rgba(5, 5, 5, 0.9);
            backdrop-filter: blur(8px);
            z-index: 210;
            display: none;
            justify-content: center; align-items: center;
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        #contact-page.active { opacity: 1; display: flex; }

        .contact-card {
            transform: scale(0.9);
            transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        #contact-page.active .contact-card { transform: scale(1); }

        .policy-content h2 {
            font-family: 'Orbitron', sans-serif;
            color: #fff; margin-top: 2rem; margin-bottom: 1rem; font-size: 1.5rem;
        }
        
        .policy-content p, .policy-content li {
            font-family: 'Inter', sans-serif;
            color: #9ca3af; line-height: 1.8; margin-bottom: 1rem;
        }

        .policy-content ul {
            list-style-type: disc; padding-left: 1.5rem; margin-bottom: 1.5rem;
        }
        
        .policy-content strong { color: #e5e7eb; }

        /* Mobile Menu */
        #mobile-menu {
            transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
            max-height: 0;
            opacity: 0;
            overflow: hidden;
        }
        #mobile-menu.open {
            max-height: 300px;
            opacity: 1;
        }

        /* Language Selector */
        .lang-selector {
            position: relative;
            width: 180px;
            margin: 0 auto;
        }

        .lang-selector-btn {
            width: 100%;
            padding: 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: #e0e0e0;
            text-align: center;
            cursor: pointer;
            font-family: 'Rajdhani', sans-serif;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            transition: all 0.3s ease;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
        }

        .lang-selector-btn:hover {
            border-color: rgba(0, 240, 255, 0.4);
            color: #00f0ff;
        }

        .lang-selector-btn svg {
            transition: transform 0.3s ease;
        }
        
        .lang-selector.open .lang-selector-btn svg {
            transform: rotate(180deg);
        }

        .lang-selector-dropdown {
            position: absolute;
            bottom: 100%;
            left: 0;
            right: 0;
            background: #0c0c0c;
            border: 1px solid rgba(0, 240, 255, 0.4);
            border-bottom: none;
            z-index: 10;
            max-height: 0;
            overflow: hidden;
            opacity: 0;
            transition: max-height 0.3s ease, opacity 0.3s ease, visibility 0s 0.3s;
            visibility: hidden;
        }

        .lang-selector.open .lang-selector-dropdown {
            max-height: 200px;
            opacity: 1;
            visibility: visible;
            transition-delay: 0s;
        }

        .lang-selector-dropdown a {
            display: block;
            padding: 12px;
            color: #a0a0a0;
            text-decoration: none;
            text-align: center;
            font-family: 'Rajdhani', sans-serif;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            transition: all 0.2s ease;
        }

        .lang-selector-dropdown a:hover {
            background-color: rgba(0, 240, 255, 0.1);
            color: #00f0ff;
        }

        .lang-selector-dropdown a.active {
            color: #00f0ff;
            font-weight: bold;
            background-color: rgba(0, 240, 255, 0.05);
        }