:root {
    --primary-color: #05C46D;
    --text-color: #333;
    --bg-color: #fff;
    --secondary-bg: #f5f5f5;
    --header-height: 70px;
    --gradient-start: #f5f7fa;
    --gradient-end: #c3cfe2;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: linear-gradient(-45deg, 
        #05C46D,  /* 主色调 */
        #7bed9f,  /* 浅绿 */
        #ffd3b6,  /* 暖橙 */
        #ffaaa5   /* 暖粉 */
    );
    background-size: 400% 400%;
    animation: gradientBG 10s ease infinite; /* 修改为10秒 */
    min-height: 100vh;
}

@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.nav-links a {
    /*margin-left: 40px;*/
    text-decoration: none;
    color: #2d3436;
    font-weight: 500;
    font-size: 1.1rem;
    transition: color 0.3s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s;
}

.nav-links a:hover::after {
    width: 100%;
}

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

/* Hero Section */
.hero {
    padding: calc(var(--header-height) + 100px) 0 100px;
    text-align: center;
    background: transparent;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(5, 196, 109, 0.1) 0%, rgba(5, 196, 109, 0.05) 100%);
    z-index: -1;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    color: #2d3436;
    font-weight: 600;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 60px;
    color: #636e72;
    font-weight: 300;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Download Buttons */
.download-buttons {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    gap: 10px;
    min-width: 180px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 10px 20px rgba(5, 196, 109, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(5, 196, 109, 0.3);
}

.btn img {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* Features Section */
.features {
    padding: 120px 0;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.features h2 {
    text-align: center;
    margin-bottom: 80px;
    font-size: 3rem;
    font-weight: 600;
    color: #2d3436;
    letter-spacing: -0.5px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-card img {
    width: 100px;
    height: 100px;
    margin-bottom: 30px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #2d3436;
    font-weight: 600;
}

.feature-card p {
    color: #636e72;
    line-height: 1.6;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    background: rgba(45, 52, 54, 0.95);
    color: white;
    padding: 60px 0 30px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.footer-links a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
}

.footer-social {
    display: flex;
    gap: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.2rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
        gap: 20px;
        width: 100%;
    }
    
    .features {
        padding: 80px 0;
    }
    
    .features h2 {
        font-size: 2rem;
        margin-bottom: 50px;
    }
    
    .btn {
        min-width: 180px;
        padding: 12px 30px;
        width: 100%;
        max-width: 280px;
    }
}

/* 添加动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card {
    animation: fadeIn 0.6s ease-out forwards;
}

/* 在现有样式中添加光标动画 */
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.cursor {
    display: inline-block;
    width: 2px;
    animation: blink 1s infinite;
    color: var(--primary-color);
    font-weight: 100;
    font-size: 4rem;
}

/* Logo样式调整 */
.logo img {
    height: 40px;
    width: auto;
    display: block;
}

.footer-logo img {
    height: 33px;
    width: auto;
    display: block;
}

/* 移动端适配 */
@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
}