* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif, 'Microsoft YaHei', sans-serif;
    margin: 0;
    padding: 0;
}

.back-home {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1000;
    padding: 12px 24px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50px;
    color: #fff;
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.back-home:hover {
    background: rgba(255,255,255,0.2);
    transform: translateX(-5px);
}

.effect-container {
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.effect-title {
    position: absolute;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 2.5rem;
    text-align: center;
    z-index: 10;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.effect-description {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.9);
    font-size: 1.1rem;
    text-align: center;
    z-index: 10;
    max-width: 600px;
    padding: 0 20px;
}