* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

:root {
    --primary-color: #6c63ff;
    --secondary-color: #ff6584;
    --dark-color: #333344;
    --light-color: #f8f9ff;
    --gray-color: #f0f1f8;
}

body {
    line-height: 1.6;
    color: #333;
    background-color: var(--light-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 */
header {
    background-color: white;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    margin-right: 8px;
    fill: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: color 0.3s;
}

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

.cta-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(108, 99, 255, 0.2);
}

.cta-button:hover {
    background-color: #5a52e0;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(108, 99, 255, 0.3);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    background: none;
    border: none;
    color: var(--dark-color);
    cursor: pointer;
    width: 30px;
    height: 30px;
}

/* 主区域 */
.hero {
    padding: 150px 0 80px;
    background: linear-gradient(135deg, #f8f9ff 0%, #eef1ff 100%);
    overflow: hidden;
}

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

.hero-text {
    flex: 1;
    padding-right: 40px;
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 20px;
    color: var(--dark-color);
    line-height: 1.2;
}

.hero h1 span {
    color: var(--primary-color);
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-image img {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transform: perspective(1000px) rotateY(-10deg);
    transition: transform 0.5s;
}

.hero-image img:hover {
    transform: perspective(1000px) rotateY(0);
}

.button-group {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.secondary-button {
    background-color: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.secondary-button:hover {
    background-color: var(--gray-color);
}

/* 特性部分 */
.features {
    padding: 100px 0;
    background-color: white;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 15px;
}

.section-title p {
    color: #777;
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--light-color);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(108, 99, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.feature-icon svg {
    width: 40px;
    height: 40px;
    fill: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

/* 壁纸展示 */
.wallpapers {
    padding: 100px 0;
    background-color: var(--gray-color);
}

.wallpaper-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
}

.wallpaper-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    height: 300px;
    position: relative;
}

.wallpaper-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.wallpaper-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

.wallpaper-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    padding: 20px;
    color: white;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s;
}

.wallpaper-item:hover .wallpaper-overlay {
    transform: translateY(0);
    opacity: 1;
}

/* 下载部分 */
.download {
    padding: 100px 0;
    background-color: white;
    text-align: center;
}

.download-content {
    max-width: 700px;
    margin: 0 auto;
}

.download-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.download-content p {
    font-size: 1.2rem;
    color: #777;
    margin-bottom: 40px;
}

.platform-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.platform-button {
    display: flex;
    align-items: center;
    background-color: var(--light-color);
    padding: 20px 30px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 600;
    transition: all 0.3s;
    min-width: 200px;
}

.platform-button:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.platform-button svg {
    width: 32px;
    height: 32px;
    margin-right: 15px;
}

/* 页脚 */
footer {
    background-color: var(--dark-color);
    color: #ccc;
    padding: 70px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-column h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s;
}

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

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: all 0.3s;
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.social-icons svg {
    width: 20px;
    height: 20px;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #888;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
    }
    
    .hero-text {
        padding-right: 0;
        margin-bottom: 50px;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .button-group {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.05);
        transform: translateY(-100%);
        opacity: 0;
        transition: all 0.3s;
        z-index: 999;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .hero h1 {
        font-size: 2.3rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .platform-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 130px 0 60px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .button-group {
        flex-direction: column;
        align-items: center;
    }
    
    .features, .wallpapers, .download {
        padding: 70px 0;
    }
}