/* 全局样式 */
body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

/* 头部标题 */
header h1 {
    font-size: 3em;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
    animation: glow 2s infinite alternate;
}

/* 主体段落 */
main p {
    font-size: 1.2em;
    margin: 20px 0;
}

/* 按钮样式 */
button {
    padding: 15px 30px;
    font-size: 1.2em;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    background: #ff7f50;
    color: white;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}
button:hover {
    background: #ff6347;
    transform: scale(1.1);
}

/* 状态显示区域 */
#status {
    margin-top: 20px;
    font-weight: bold;
}

/* 标题发光动画 */
@keyframes glow {
    from { text-shadow: 2px 2px 8px rgba(0,0,0,0.5); }
    to { text-shadow: 2px 2px 20px rgba(255,255,255,0.8); }
}