/* 基础布局样式 */
body {
    text-shadow: black 0.1em 0.1em 0.2em;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #262525;
}

.main {
    flex: 1;
    background-color: #262525;
    display: flex;
    justify-content: center;
}

.main-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding-right: 20px;
    padding-left: 20px;
}

.boxa {
    display: flex;
    position: relative;
    margin-top: 20px;
}

/* 响应式布局 */
@media (max-width: 768px) {
    .main {
        padding: 0;
    }
    .main-container {
        padding: 0 10px;
    }
}