/* 基础样式 */
body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    color: #333;
    overflow-x: hidden;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 50px;
    position: fixed;
    width: calc(100% - 100px);
    background-color: rgba(255, 255, 255, 0.9);
    z-index: 100;
}

.logo {
    font-size: 24px;
    font-weight: bold;
}

/* 语言选择器样式 */
.language-selector {
    position: relative;
    cursor: pointer;
}

.language-dropdown {
    display: none;
    position: absolute;
    right: 0;
    background: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 10px;
    width: 120px;
}

.language-dropdown div {
    padding: 5px 0;
}

.language-dropdown div:hover {
    color: #0066cc;
}

.language-selector:hover .language-dropdown {
    display: block;
}

/* 版块样式 */
main {
    padding-top: 80px;
}

.section {
    height: 100vh;
    padding: 100px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s, transform 0.8s;
}

.section.active {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
    header {
        padding: 15px 20px;
        width: calc(100% - 40px);
    }
    
    .section {
        padding: 80px 20px;
    }
}