/* 全局样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            min-height: 100vh;
            overflow-x: hidden;
            color: white;
        }
        
        /* 主内容区域 */
        .content {
            position: relative;
            z-index: 1;
            padding: 80px 20px 50px;
            max-width: 1400px;
            margin: 0 auto;
        }
        
        /* 顶部标题区域 */
        .page-header {
            text-align: center;
            margin-bottom: 60px;
            position: relative;
            margin-top:30px;
        }
        
        .page-title {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 15px;
            background: linear-gradient(45deg, #ff0080, #00ffcc, #ff9900);
            background-size: 200% auto;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: gradient-shift 5s ease infinite;
            text-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        
        @keyframes gradient-shift {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }
        
        .page-subtitle {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 25px;
            font-weight: 300;
        }
        
        .page-date {
            font-size: 1rem;
            opacity: 0.7;
            font-family: 'Courier New', monospace;
            padding: 10px 20px;
            display: inline-block;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        /* 特效展示网格 */
        .effects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
        
        .effect-card {
            background: rgba(255, 255, 255, 0.07);
            backdrop-filter: blur(20px);
            border-radius: 15px;
            padding: 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }   
        
        .effect-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(
                90deg,
                transparent,
                rgba(255, 255, 255, 0.05),
                transparent
            );
            transition: left 0.7s ease;
        }
        
        .effect-card:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
            border-color: rgba(255, 255, 255, 0.3);
        }
        
        .effect-card:hover::before {
            left: 100%;
        }
        
        .effect-number {
            position: absolute;
            top: 15px;
            right: 15px;
            font-size: 0.9rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.5);
            background: rgba(0, 0, 0, 0.2);
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }
        
        .effect-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 20px;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .effect-demo {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 140px;
            margin-bottom: 15px;
            overflow: hidden;
        }
        
        .effect-description {
            font-size: 0.85rem;
            opacity: 0.8;
            line-height: 1.6;
            margin-bottom: 20px;
        }
        
        .copy-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: white;
            border-radius: 50px;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            width: 100%;
            margin-top: 10px;
        }
        
        .copy-btn:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }
        
        /* 特效1：霓虹发光按钮 */
        .neon-btn {
            padding: 15px 40px;
            background: #000;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            position: relative;
            overflow: hidden;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 
                0 0 5px #0ff,
                0 0 10px #0ff,
                0 0 15px #0ff,
                0 0 20px #0ff,
                0 0 25px #0ff;
            animation: neon-pulse 1.5s ease-in-out infinite alternate;
        }
        
        @keyframes neon-pulse {
            from {
                box-shadow: 
                    0 0 5px #0ff,
                    0 0 10px #0ff,
                    0 0 15px #0ff,
                    0 0 20px #0ff;
            }
            to {
                box-shadow: 
                    0 0 10px #0ff,
                    0 0 20px #0ff,
                    0 0 30px #0ff,
                    0 0 40px #0ff;
            }
        }
        
        .neon-btn:hover {
            animation-play-state: paused;
            transform: scale(1.05);
        }
        
        
        /* 特效2：渐变文字动画 */
        .gradient-text {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(
                45deg,
                #ff0000, #ff9900, #ffff00, #33ff00,
                #0099ff, #6633ff, #ff00ff
            );
            background-size: 400% 400%;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: gradient-flow 5s ease infinite;
        }
        
        @keyframes gradient-flow {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }
        
        /* 特效3：旋转加载动画 */
        .spinner {
            width: 80px;
            height: 80px;
            border: 8px solid rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            border-top-color: #ff0080;
            border-right-color: #00ffcc;
            border-bottom-color: #ff9900;
            animation: spin 1.5s linear infinite;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        /* 特效4：卡片悬停3D翻转 */
        .flip-card {
            width: 200px;
            height: 150px;
            perspective: 1000px;
        }
        
        .flip-card-inner {
            position: relative;
            width: 100%;
            height: 100%;
            transition: transform 0.8s;
            transform-style: preserve-3d;
        }
        
        .flip-card:hover .flip-card-inner {
            transform: rotateY(180deg);
        }
        
        .flip-card-front, .flip-card-back {
            position: absolute;
            width: 100%;
            height: 100%;
            backface-visibility: hidden;
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.2rem;
        }
        
        .flip-card-front {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
        }
        
        .flip-card-back {
            background: linear-gradient(135deg, #f093fb, #f5576c);
            color: white;
            transform: rotateY(180deg);
        }
        
        /* 特效5：输入框聚焦动画 */
        .animated-input {
            width: 250px;
            padding: 15px;
            background: rgba(255, 255, 255, 0.1);
            border: 2px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            color: white;
            font-size: 1rem;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .animated-input:focus {
            outline: none;
            border-color: #00ffcc;
            box-shadow: 0 0 20px rgba(0, 255, 204, 0.4);
            transform: scale(1.02);
        }
        
        .animated-label {
            position: absolute;
            color: rgba(255, 255, 255, 0.7);
            transition: all 0.3s ease;
            pointer-events: none;
        }
        
        /* 特效6：波浪文字效果 */
        .wave-text {
            font-size: 2.2rem;
            font-weight: 700;
            position: relative;
        }
        
        .wave-text span {
            display: inline-block;
            animation: wave 2s ease-in-out infinite;
            animation-delay: calc(0.1s * var(--i));
        }
        
        @keyframes wave {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-20px); }
        }
        
        
        /* 特效7：打字机文字效果 */
        .typewriter {
            font-size: 1.8rem;
            font-weight: 600;
            white-space: nowrap;
            overflow: hidden;
            border-right: 3px solid white;
            animation: 
                typing 3.5s steps(20, end) infinite,
                blink-caret 0.75s step-end infinite;
        }
        
        @keyframes typing {
            0% { width: 0 }
            50% { width: 100% }
            80% { width: 100% }
            100% { width: 0 }
        }
        
        @keyframes blink-caret {
            from, to { border-color: transparent }
            50% { border-color: white }
        }
        
        /* 特效8：进度条加载动画 */
        .progress-container {
            width: 250px;
            height: 30px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 15px;
            overflow: hidden;
            position: relative;
        }
        
        .progress-bar {
            height: 100%;
            background: linear-gradient(90deg, #ff0080, #00ffcc);
            border-radius: 15px;
            animation: progress-loading 2s ease-in-out infinite;
            position: relative;
        }
        
        @keyframes progress-loading {
            0% { width: 0%; }
            50% { width: 100%; }
            100% { width: 0%; }
        }
        
        /* 页脚 */
        .page-footer {
            text-align: center;
            margin-top: 60px;
            padding: 25px;
            font-size: 0.85rem;
            opacity: 0.7;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        
       /* 响应式调整 */
@media (max-width: 768px) {
    .content {
        padding: 70px 10px 20px;
    }
    
    .effects-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 15px;
    }
    
    .effect-card {
        padding: 15px;
    }
    
    .page-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .content {
        padding: 60px 10px 15px;
    }
    
    .effects-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .page-subtitle {
        font-size: 0.9rem;
    }
}