/* 新的语义化导航样式 */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 15px 0;
}

.main-navigation {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo-container a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
}

.logo-image-wrapper {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.logo-text {
    font-size: 20px;
    font-weight: bold;
    color: #1473E6;
    font-family: 'Times New Roman', serif;
}

.nav-item {
    display: flex;
    align-items: center;
}

.nav-link {
    color: #666;
    text-decoration: none;
    font-size: 16px;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: #1473E6;
    background: #f0f8ff;
}

.nav-button {
    background: #1473E6;
    color: white;
    text-decoration: none;
    font-size: 16px;
    font-weight: bold;
    padding: 10px 20px;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.nav-button:hover {
    background: #0056b3;
    transform: translateY(-2px);
}

.scenarios-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    margin-top: 100px; /* 为固定导航栏留出空间 */
}

.scenarios-header {
    text-align: center;
    margin-bottom: 60px;
    padding-bottom: 40px;
    border-bottom: 3px solid #f0f0f0;
}

.scenarios-header h1 {
    color: #1473E6;
    font-size: 42px;
    margin-bottom: 20px;
    font-family: 'Times New Roman', serif;
    font-weight: bold;
}

.scenarios-header p {
    color: #666;
    font-size: 20px;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

.scenario-card {
    margin-bottom: 80px;
    padding: 40px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 20px;
    border-left: 8px solid #1473E6;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.scenario-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.scenario-card h2 {
    color: #1473E6;
    font-size: 32px;
    margin-bottom: 25px;
    font-family: 'Times New Roman', serif;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 15px;
}

.scenario-card h2::before {
    content: "";
    width: 40px;
    height: 40px;
    background: #1473E6;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    font-weight: bold;
}

.scenario-card:nth-child(2) h2::before {
    content: "1";
}

.scenario-card:nth-child(3) h2::before {
    content: "2";
}

.scenario-card:nth-child(4) h2::before {
    content: "3";
}

.scenario-intro {
    background: #fff;
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.scenario-intro p {
    color: #555;
    font-size: 18px;
    line-height: 1.8;
    margin: 0;
}

.scenario-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

.scenario-section {
    background: #fff;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.scenario-section h3 {
    color: #1473E6;
    font-size: 24px;
    margin-bottom: 20px;
    font-family: 'Times New Roman', serif;
    font-weight: bold;
}

.scenario-section h4 {
    color: #333;
    font-size: 20px;
    margin: 20px 0 15px 0;
    font-family: 'Times New Roman', serif;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    padding: 12px 0;
    color: #555;
    position: relative;
    padding-left: 35px;
    font-size: 16px;
    line-height: 1.6;
}

.feature-list li:before {
    content: "✓";
    color: #1473E6;
    font-weight: bold;
    font-size: 18px;
    position: absolute;
    left: 0;
    top: 10px;
}

.setup-steps {
    background: #e8f4fd;
    padding: 25px;
    border-radius: 15px;
    margin: 20px 0;
}

.setup-steps h4 {
    color: #1473E6;
    font-size: 20px;
    margin-bottom: 20px;
    font-family: 'Times New Roman', serif;
    font-weight: bold;
}

.setup-steps ol {
    padding-left: 25px;
    margin: 0;
}

.setup-steps li {
    color: #555;
    margin-bottom: 15px;
    line-height: 1.7;
    font-size: 16px;
}

.tips-box {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border: 2px solid #ffc107;
    padding: 25px;
    border-radius: 15px;
    margin: 20px 0;
}

.tips-box h4 {
    color: #856404;
    font-size: 20px;
    margin-bottom: 15px;
    font-family: 'Times New Roman', serif;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tips-box h4::before {
    content: "💡";
    font-size: 24px;
}

.tips-box p {
    color: #856404;
    margin: 0 0 10px 0;
    font-size: 16px;
    line-height: 1.6;
}

.highlight {
    background: #fff3cd;
    padding: 3px 8px;
    border-radius: 6px;
    font-weight: bold;
    color: #856404;
}

/* 软件截图样式 */
.software-screenshot {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 15px;
    margin: 30px 0;
    border: 1px solid #e9ecef;
}

.software-screenshot h4 {
    color: #1473E6;
    font-size: 20px;
    margin-bottom: 20px;
    font-family: 'Times New Roman', serif;
    font-weight: bold;
    text-align: center;
}

.screenshot-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.screenshot-item {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.screenshot-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.screenshot-image {
    cursor: zoom-in;
    width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    max-height: 358px;
    object-fit: cover;
}

.screenshot-caption {
    margin-top: 15px;
    color: #555;
    font-size: 16px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .scenario-grid {
        grid-template-columns: 1fr;
    }
    
    .scenarios-header h1 {
        font-size: 32px;
    }
    
    .scenario-card {
        padding: 25px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .screenshot-gallery {
        grid-template-columns: 1fr;
    }
    
    .software-screenshot {
        padding: 20px;
    }
}

.cta-section {
    text-align: center;
    margin-top: 60px;
    padding: 40px;
    background: linear-gradient(135deg, #1473E6 0%, #0056b3 100%);
    border-radius: 20px;
    color: white;
}

.cta-section h2 {
    font-size: 32px;
    margin-bottom: 20px;
    font-family: 'Times New Roman', serif;
    font-weight: bold;
}

.cta-section p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

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

.cta-button {
    display: inline-block;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 25px;
    font-size: 16px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.cta-button.primary {
    background: #fff;
    color: #1473E6;
}

.cta-button.primary:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
}

.cta-button.secondary {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.cta-button.secondary:hover {
    background: #fff;
    color: #1473E6;
    transform: translateY(-2px);
}