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

body{
    font-family: Arial, Helvetica, sans-serif;
    background: linear-gradient(135deg, #00bcd4, #006c8f);
    color: white;
    padding: 40px 20px;
    line-height: 1.7;
}

.container{
    max-width: 1100px;
    margin: auto;
    background-color: rgba(0, 20, 35, 0.85);
    padding: 40px;
    border-radius: 18px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(6px);
}

h1{
    font-size: 42px;
    margin-bottom: 25px;
    color: #6ee7ff;
    text-align: center;
}

h2{
    margin-top: 35px;
    margin-bottom: 15px;
    color: #4ddcff;
}

h3{
    margin-top: 25px;
    margin-bottom: 10px;
    color: #7be8ff;
}

p{
    margin-bottom: 16px;
    color: #e7faff;
}

ul{
    margin-left: 25px;
    margin-bottom: 20px;
}

li{
    margin-bottom: 8px;
}

a{
    color: #72e9ff;
    text-decoration: none;
    transition: 0.2s;
}

a:hover{
    color: white;
    text-decoration: underline;
}

.index{
    background: rgba(255,255,255,0.05);
    padding: 20px;
    border-radius: 12px;
    margin-top: 20px;
    margin-bottom: 30px;
}

.seal{
    margin-top: 40px;
    text-align: center;
    opacity: 0.8;
    font-size: 14px;
}