:root {
    --primary-color: #007bff;
    --primary-dark: #0056b3;
    --accent-color: #17c3b2;
    --text-color: #333;
    --text-secondary: #666;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --shadow-light: 0 5px 15px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.4s cubic-bezier(0.215, 0.610, 0.355, 1.000);

    /* 增加字体大小，使整体更大气 */
    --font-title: 'Helvetica Neue', Arial, sans-serif;
}

body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    background-color: var(--light-bg);
    font-family: var(--font-title);
    line-height: 1.7;
    font-size: 1.25rem; /* 从1.1rem增加到1.25rem，提高可读性 */
}

/* CSS续写内容 */
.section {
    padding: 80px 24px;
    background: var(--light-bg);
}

.section + .section {
    padding-top: 40px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* SaaS入口横幅样式 */
.saas-banner {
    display: block;
    position: relative;
    width: 90%;
    max-width: 1200px;
    margin: 50px auto;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: all 0.4s ease;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    height: 250px;
    text-decoration: none;
    color: var(--white);
}

.saas-banner:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.saas-banner-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
    z-index: 2;
}

.saas-banner-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.saas-banner-content p {
    font-size: 1.3rem;
    max-width: 80%;
    margin-bottom: 20px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.saas-banner-button {
    background-color: rgba(255, 255, 255, 0.2);
    border: 2px solid var(--white);
    color: var(--white);
    padding: 12px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.saas-banner-button:hover {
    background-color: var(--white);
    color: #667eea;
    transform: scale(1.05);
}

.saas-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}



/* 响应式设计 */
@media (max-width: 768px) {
    .saas-banner {
        width: 95%;
        height: 200px;
        margin: 30px auto;
    }

    .saas-banner-content h2 {
        font-size: 2rem;
    }

    .saas-banner-content p {
        font-size: 1.1rem;
        max-width: 90%;
    }
}

@media (max-width: 576px) {
    .saas-banner {
        height: 180px;
    }

    .saas-banner-content h2 {
        font-size: 1.7rem;
    }

    .saas-banner-content p {
        font-size: 1rem;
    }

    .saas-banner-button {
        padding: 10px 20px;
        font-size: 1rem;
    }
}