body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9fafb;
    color: #333;
}

.navbar {
    width: 66%;
    background-color: transparent;
    position: fixed;
    z-index: 1000;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    left: 50%;
    transform: translateX(-50%);
    margin-top: 6px;
}

.navbar ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 50px; /* 设置导航栏的高度 */
}

.navbar li {
    flex: 1;
    text-align: center;
}

.navbar a {
    text-decoration: none;
    color: gray;
    font-size: 1.2rem;
    transition: letter-spacing 0.3s ease;
    display: block;
    line-height: 50px; /* 确保文字垂直居中 */
}

.navbar a:hover {
    letter-spacing: 2px;
}

.navbar a.active {
    font-weight: bold;
}

#content {
    padding-top: 60px; /* 确保内容不会被固定在顶部的导航栏遮挡 */
}

.section {
    width: 90%;
    max-width: 1200px;
    margin: 40px auto;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    background-color: #fff;
    display: none;
}

.section.active {
    display: block;
}

.intro-section {
    height: calc(100vh - 60px); /* 减去导航栏的高度 */
    background-color: #fff;
    display: none;
    box-sizing: border-box; /* 确保内边距包含在总宽度内 */
    overflow-y: auto; /* 添加垂直滚动条以防止内容溢出 */
}

.intro-section.active {
    display: block;
}

.intro-section h2 {
    margin-bottom: 20px;
    text-align: center;
}

.intro-section p {
    line-height: 1.6;
    font-size: 1.1rem;
}

.app-logos {
    display: flex;
    justify-content: space-around;
    margin-top: 20px;
}

.app-logo-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
}

.app-logo-preview img {
    max-width: 50px;
    margin-top: 100px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 10px;
}

.app-logo-preview span {
    font-size: 1rem;
}

.section h2,
.section h3 {
    margin-bottom: 20px;
}

.section p {
    line-height: 1.6;
    font-size: 1.1rem;
}

.work-item,
.update-item {
    background-color: #eaeaea;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 40px;
    padding: 20px;
}

.work-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    max-width: 100%;

    height: auto;

    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    width: 45%;
}

.description {
    width: 45%;
    font-size: 1.1rem;
}

.site-footer {
    background-color: #f8f9fa;
    padding: 10px 0;
    text-align: center;
    border-top: 1px solid #ddd;
}

.site-footer .container {
    max-width: 1200px;
    margin: 0 auto;
}






@media (max-width: 768px) {
    .navbar li {
        margin: 0 10px;
    }

    .navbar a {
        font-size: 1rem;
    }

    .work-item {
        flex-direction: column;
        align-items: center;
    }

    .logo img {
        width: 100%;
        margin-bottom: 20px;
    }

    .description {
        width: 100%;
    }

    .app-logos {
        flex-direction: column;
        align-items: center;
    }

    .app-logo-preview {
        margin-bottom: 20px;
    }
}