/* 基本重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #82e000;
    --secondary-color: #6bb800;
    --accent-color: #ff6b6b;
    --text-color: #2D3436;
    --light-bg: #F7F9FC;
    --white: #FFFFFF;
}

body {
    font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
    padding-top: 80px; /* 为固定导航栏留出空间 */
}

/* 导航栏样式 */
nav {
    background-color: var(--white);
    padding: 1.2rem 5%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.logo span {
    display: inline-block;
}

nav ul {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 20px;
}

nav a:hover {
    color: var(--primary-color);
    background-color: rgba(108, 99, 255, 0.1);
}

/* 首页Hero区样式 */
#home {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 8rem 2rem 4rem;
    text-align: center;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.4rem;
    margin: 1.5rem 0;
    opacity: 0.9;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 2rem 0;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.feature-item i {
    font-size: 2rem;
    color: var(--white);
    background: rgba(255, 255, 255, 0.2);
    padding: 1rem;
    border-radius: 50%;
}

.feature-item span {
    color: var(--white);
    font-size: 1.1rem;
}

.download-btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--accent-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 30px;
    margin-top: 2rem;
    font-weight: 600;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

/* 功能介绍区 */
#features {
    padding: 6rem 2rem;
    background-color: var(--white);
}

#features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: 4rem;
}

.feature {
    background-color: var(--light-bg);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
}

.feature i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.feature h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.feature p {
    color: var(--text-color);
    opacity: 0.8;
}

.version-info {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    background-color: var(--light-bg);
    border-radius: 20px;
}

.version-info h3 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.version-info ul {
    list-style: none;
    padding: 0;
}

.version-info li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.version-info li i {
    color: var(--primary-color);
}

/* 截图展示区 */
#screenshots {
    padding: 6rem 2rem;
    background-color: var(--light-bg);
    overflow: hidden;
}

#screenshots h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.screenshot-grid {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    padding: 2rem;
    scrollbar-width: none;
    -ms-overflow-style: none;
    scroll-behavior: smooth;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.screenshot-grid::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.screenshot-item {
    flex: 0 0 auto;
    width: 300px;
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    background-color: var(--white);
    padding: 1rem;
    margin: 0 1rem;
}

.screenshot-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.screenshot-item p {
    text-align: center;
    margin-top: 1rem;
    color: var(--text-color);
    font-weight: 500;
}

.screenshot-item:hover img {
    transform: scale(1.05);
}

/* 关于我们区 */
#contact {
    padding: 6rem 2rem;
    background-color: var(--light-bg);
    text-align: center;
}

#contact h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem;
    background-color: var(--white);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1rem 0;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.privacy-notice {
    margin-top: 2rem;
    padding: 1rem;
    background-color: var(--light-bg);
    border-radius: 10px;
    text-align: center;
}

.privacy-notice a {
    color: var(--primary-color);
    text-decoration: none;
}

.privacy-notice a:hover {
    text-decoration: underline;
}

footer {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 1.5rem;
    margin-top: 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    nav ul {
        display: none;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshot-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        padding: 2rem;
    }
}