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

body {
    font-family: "PingFang SC", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, #0078FF, #00BCD4);
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
}

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

.hero {
    text-align: center;
    padding: 30px 20px;
    color: white;
}

.hero h1 {
    font-size: 36px;
    margin-bottom: 15px;
    font-weight: 600;
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.app-preview-main {
    text-align: center;
    margin: 20px auto;
    max-width: 320px;
    position: relative;
}

.app-preview-main img {
    max-width: 100%;
    border-radius: 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border: 5px solid white;
}

.app-preview-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin: 30px auto;
    max-width: 900px;
}

.preview-item {
    flex: 0 1 220px;
    text-align: center;
}

.preview-item img {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    border: 3px solid white;
    transition: transform 0.3s ease;
}

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

.download-section {
    background-color: white;
    border-radius: 20px;
    padding: 30px 20px;
    text-align: center;
    margin: 30px auto;
    max-width: 600px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.download-section h2 {
    color: #333;
    margin-bottom: 10px;
}

.download-btn {
    display: inline-block;
    background-color: #007AFF;
    color: white;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    margin: 20px 0;
    box-shadow: 0 5px 15px rgba(0, 122, 255, 0.3);
    transition: all 0.3s ease;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 122, 255, 0.4);
}

.app-store-badge {
    max-width: 180px;
    margin: 15px 0;
}

.features {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 40px auto;
    max-width: 600px;
}

.feature {
    display: flex;
    align-items: center;
    background-color: white;
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.feature-icon {
    min-width: 60px;
    height: 60px;
    background-color: #e6f4ff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    font-size: 24px;
}

.feature-text h3 {
    font-size: 18px;
    margin-bottom: 5px;
    color: #007AFF;
}

.feature-text p {
    font-size: 14px;
    color: #666;
}

.note {
    font-size: 14px;
    color: #666;
    margin-top: 10px;
}

.footer {
    text-align: center;
    padding: 30px 20px;
    color: white;
    font-size: 14px;
}

/* Animation effects */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero, .app-preview-main, .app-preview-grid, .download-section, .features {
    animation: fadeIn 0.8s ease-out forwards;
}

.download-section {
    animation-delay: 0.2s;
}

.app-preview-grid {
    animation-delay: 0.3s;
}

.features {
    animation-delay: 0.4s;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .app-preview-grid {
        flex-direction: column;
        align-items: center;
    }
    
    .preview-item {
        max-width: 280px;
    }
    
    .hero h1 {
        font-size: 28px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .download-btn {
        padding: 12px 30px;
        font-size: 16px;
    }
}

@media (min-width: 992px) {
    .container {
        max-width: 960px;
    }
}

/* All CSS from '.app-carousel-container' down to the end of '针对登录界面的特殊样式' has been removed. */