:root {
    --primary-color: #69BC6E;
    --primary-dark: #4e9c53;  /* 深一点的绿色用于hover效果 */
    --primary-light: #e8f5e9;  /* 浅绿色背景 */
    --text-color: #2C3E50;    /* 深色文字 */
    --text-light: #647380;    /* 浅色文字 */
    --bg-color: #ffffff;
    --border-color: rgba(105, 188, 110, 0.1);  /* 带绿色的边框 */
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-color);  /* 改回纯白背景 */
    min-height: 100vh;
}

/* 优化毛玻璃效果 */
/* 删除 .glass-effect 相关样式 */

header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1rem 5%;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-version {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--primary-color);
    padding: 0.2rem 0.4rem;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
}

.logo-image {
    height: 30px; /* 导航栏中的高度调整为30px */
    width: 30px;  /* 设置宽度与高度相等 */
    object-fit: cover; /* 确保图像覆盖整个区域 */
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-download {
    color: var(--primary-color) !important;
    padding: 0.5rem 1rem;
    border: 1px solid var(--primary-color);
    border-radius: 6px;
    transition: all 0.2s ease !important;
}

.nav-download:hover {
    background: var(--primary-color);
    color: white !important;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 5% 2rem;
}

#hero {
    text-align: center;
    padding: 6rem 2rem;
    position: relative;  /* 添加相对定位 */
}

h1 {
    font-family: 'Roboto', sans-serif;  /* 应用新的加粗字体 */
    font-size: 4rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    font-weight: 700;  /* 确保字体加粗 */
    display: inline-block;
    background-image: linear-gradient(
        90deg,
        var(--primary-color) 0%,
        #83C987 100%
    );
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    position: relative;  /* 添加相对定位以支持伪元素 */
}

h1::after {
    content: "";
    position: absolute;
    bottom: -12px;  /* 调整下划线位置 */
    left: 50%;
    transform: translateX(-50%);
    width: 160px;  /* 固定宽度 */
    height: 4px;  /* 下划线高度 */
    background: linear-gradient(90deg,
        transparent 0%,
        var(--primary-color) 50%,
        transparent 100%
    );  /* 渐变效果 */
    border-radius: 2px;  /* 圆角效果 */
    opacity: 0.8;  /* 透明度 */
}

#hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    margin: 2rem 0 3rem;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.download-button {
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.download-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.download-icon {
    height: 24px; /* 调整图标高度 */
    width: 24px; /* 设置宽度 */
    margin-right: 8px; /* 与文本之间的间距 */
    vertical-align: middle; /* 垂直对齐 */
    fill: white; /* 图标颜色 */
}

.features-list {
    max-width: 900px;
    margin: 8rem auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 5rem;
    padding: 0 2rem;
}

.feature-item {
    text-align: left;
    position: relative;
}

.feature-number {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: block;
}

.feature-item h3 {
    font-size: 1.5rem;
    margin: 1rem 0 0.75rem;
    color: var(--primary-color);
}

.feature-item p {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.6;
}

footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem 5% 2rem;
    margin-top: 6rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-left {
    flex-shrink: 0;
}

.footer-desc {
    color: var(--text-light);
    margin-top: 1rem;
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* 移除不需要的样式 */
/* 删除 .footer-links 相关样式 */
/* 删除 .footer-column 相关样式 */

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-legal a:hover {
    color: var(--primary-color);
}

/* 合并媒体查询 */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    .features-list {
        grid-template-columns: 1fr;
        gap: 3rem;
        margin: 4rem auto;
    }
    
    .feature-item {
        text-align: center;
    }
    
    .download-buttons {
        flex-direction: column;
    }
    
    .nav-links {
        display: none;
    }
    
    .footer-content,
    .footer-bottom {
        flex-direction: column;
        gap: 3rem;
        text-align: center;
    }
    
    .footer-legal {
        justify-content: center;
    }
}

/* 添加辅助类 */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.hero-logo {
    text-align: center; /* 居中对齐 */
    margin-bottom: 20px; /* 与标题之间的间距 */
}

.hero-logo .logo-image {
    height: 60px; /* Hero区域中的高度调整为60px */
    width: 60px;  /* 设置宽度与高度相等 */
    object-fit: cover; /* 确保图像覆盖整个区域 */
}