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

body {
    font-family: "Microsoft YaHei", "微软雅黑", sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    padding-top: 60px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background-color: #000;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    z-index: 1000;
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 2rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.2rem;
    font-weight: bold;
    color: #fff;
    cursor: pointer;
}

.nav-logo .logo {
    margin-right: 0.5rem;
    width: 40px;
    height: 40px;
    border-radius: 40px;
    object-fit: cover;
}

.nav-logo:hover {
    color: rgba(255, 255, 255, 0.8);
}

header {
    background: linear-gradient(135deg, #000 0%, #333 100%);
    padding: 4rem 2rem;
    text-align: center;
    color: #fff;
    margin-bottom: 3rem;
}

header h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.4;
}

header h2 {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 400;
}

.featured {
    max-width: 1200px;
    margin: 0 auto 4rem;
    padding: 0 2rem;
}

.featured > div {
    background-color: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    margin-bottom: 3rem;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
}

.featured-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.featured img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.qr-section {
    max-width: 1200px;
    margin: 0 auto 4rem;
    padding: 0 2rem;
}

.qr-container {
    background-color: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.qr-container h3 {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 2rem;
    font-weight: 600;
}

.qr-code {
    display: inline-block;
    margin: 1.5rem 0;
}

.qr-code img {
    width: 200px;
    height: 200px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.qr-code img:hover {
    transform: scale(1.05);
}

.qr-container p {
    color: #666;
    font-size: 1rem;
    margin-top: 1rem;
    line-height: 1.6;
}

.download-btn {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.download-link {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: #fff;
    text-decoration: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

.download-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
    color: #fff;
}

.download-icon {
    font-size: 1.3rem;
    margin-right: 0.5rem;
}

.copy-link-btn {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, #28a745 0%, #1e7e34 100%);
    color: #fff;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
    font-family: inherit;
}

.copy-link-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

.copy-icon {
    font-size: 1.3rem;
    margin-right: 0.5rem;
}

footer {
    background-color: #fff;
    padding: 2rem 1rem;
    margin-top: 4rem;
    border-top: 1px solid #eee;
}

.copyright {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    color: #666;
    font-size: 0.9rem;
    line-height: 1.8;
}

.copyright p {
    margin: 0.8rem 0;
    color: #666;
}

.copyright img {
    height: 20px;
    vertical-align: middle;
    margin-right: 5px;
}

.copyright a {
    color: #666;
    text-decoration: none;
    margin: 0 8px;
    transition: color 0.3s ease;
}

.copyright a:hover {
    color: #333;
}

.copyright span {
    display: block;
    margin-top: 1rem;
    color: #999;
    font-size: 0.85rem;
}

.company-info {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    padding: 0 2rem;
}

.company-info p {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 1.2rem;
    line-height: 1.8;
    letter-spacing: 0.5px;
}

.company-info p:last-child {
    margin-bottom: 0;
    color: #999;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    header {
        padding: 3rem 1rem;
    }

    header h1 {
        font-size: 1.6rem;
    }

    .featured {
        padding: 0 1rem;
    }

    .featured > div {
        padding: 1.5rem;
    }

    .featured-images {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .qr-section {
        padding: 0 1rem;
    }

    .qr-container {
        padding: 2rem 1.5rem;
    }

    .qr-container h3 {
        font-size: 1.3rem;
        margin-bottom: 1.5rem;
    }

    .qr-code img {
        width: 150px;
        height: 150px;
    }

    .download-link {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }

    .download-icon {
        font-size: 1.1rem;
    }

    .copy-link-btn {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }

    .copy-icon {
        font-size: 1.1rem;
    }

    footer {
        padding: 3rem 2rem;
    }

    .company-info {
        padding: 0 1rem;
    }

    .company-info p {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }

    .copyright {
        font-size: 0.8rem;
    }

    .copyright img {
        height: 16px;
    }

    .copyright a {
        margin: 0 4px;
    }
}