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

body {
    min-height: 100vh;
    font-family: sans-serif;
    /* 和主页共用同一张背景图 */
    background: linear-gradient(rgba(0, 0, 0, 0.38), rgba(0, 0, 0, 0.38)), url("./bg.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 30px 15px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

.block {
    background-color: rgba(0,0,0,0.45);
    padding: 25px;
    border-radius: 14px;
    margin-bottom: 22px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.35);
    transition: all 0.3s ease;
}
.block:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 22px rgba(0,0,0,0.45);
}

h1 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 26px;
    color: #ffffff;
    text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

h2 {
    margin-bottom: 10px;
    font-size: 22px;
    color: #fff;
}

p {
    margin: 8px 0;
    line-height: 1.7;
    font-size: 16px;
    color: #fff;
}

a {
    color: #8ec8ff;
    text-decoration: none;
    transition: all 0.25s ease;
    border-bottom: 1px solid transparent;
}
a:hover {
    color: #b3d8ff;
    border-bottom: 1px solid #b3d8ff;
}