*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    min-height: 100vh;
    background: linear-gradient(135deg,#1a2a6c,#b21f1f,#1a2a6c);
    color: #fff;
    font-family: 'Courier New', Courier, monospace;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container{
    text-align: center;
    padding: 2rem;
    max-width: 800px;
}

h1{
    font-size: 2.4rem;
    margin-bottom: 2rem;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
}

.typewriter{
    font-size: 2rem;
    line-height: 1.4;
    margin: 1rem auto;
    min-height: 3em;
}

/* 光标样式 */
.cursor{
    display: inline-block;
    width: 2px;
    height: 2.2rem;
    background: #fff;
    vertical-align: middle;
    margin-left: 4px;
    animation: blink 1s infinite;
}
/* 光标动画 */
@keyframes blink{
    0%,100%{
        opacity: 1;
    }
    50%{
        opacity: 0;
    }
}

.controls{
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}
.controls .btn{
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 30px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s;
}
.controls .btn:hover{
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.speed-display{
    font-size: 1.1rem;
    opacity: 0.9;
    margin-top: 1rem;
}