html, body {
    margin: 0;
    padding: 0;
}
body {
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    -khtml-user-select: none;
    user-select: none;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a {
    text-decoration: none;
}
.site-head {
    padding: 13px 0;
    border-bottom: #F1F1F1 1px solid;
    position: sticky;
    top: 0;
    background: #fff;
    z-index: 100;
}
.nav-wrap {
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo-area {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}
.logo-area img {
    vertical-align: middle;
}
.split-line {
    color: #ddd;
    margin: 0 4px;
}
.ai-label {
    font-weight: bold;
    font-size: 12px;
}
.ai-desc {
    font-size: 12px;
    color: #666;
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}
.nav-link {
    font-size: 13px;
    color: #666;
    cursor: pointer;
}
.main-content {
    padding-bottom: 60px;
}
.intro-block {
    text-align: center;
    padding: 60px 20px 40px;
}
.logo-showcase {
    margin-bottom: 20px;
}
.main-title {
    margin: 20px auto 0;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.4;
    max-width: 980px;
}
.intro-text {
    margin: 12px auto 0;
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    max-width: 980px;
}
.cta-primary {
    margin-top: 20px;
}
.btn-download, .btn-action {
    background: linear-gradient(to right, #FF6027, #FF06A0);
    border-radius: 20px;
    color: #fff;
    padding: 10px 30px;
    font-size: 14px;
    display: inline-block;
    min-width: 140px;
    text-align: center;
    transition: transform 0.2s;
}
.btn-download:hover, .btn-action:hover {
    transform: scale(1.02);
}
.product-image {
    margin-top: 60px;
    padding: 0 20px;
}
.product-image img {
    max-width: 1020px;
    width: 100%;
    box-shadow: 0 0 40px #DDD9F3;
    border: 10px solid #fff;
    border-bottom: 0;
    z-index: 1;
    border-radius: 16px;
}
.sidebar-feature {
    padding: 120px 20px 100px;
    text-align: center;
}
.feature-content {
    max-width: 960px;
    margin: 0 auto;
}
.feature-heading {
    font-size: 42px;
    margin: 0;
    font-weight: 600;
}
.feature-desc {
    font-size: 18px;
    line-height: 32px;
    padding-top: 20px;
    margin: 0;
}
.feature-image {
    margin-top: 50px;
    max-width: 960px;
    margin-left: auto;
    margin-right: auto;
}
.enterprise-section {
    padding: 80px 20px;
    background: #fafafa;
}
.section-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 30px;
}
.enterprise-text {
    text-align: center;
}
.enterprise-title {
    font-size: 42px;
    margin: 0;
    line-height: 1.3;
}
.enterprise-title .highlight {
    background-image: linear-gradient(to right, #EB3838, #EB3685);
    -webkit-background-clip: text;
    color: transparent;
}
.enterprise-desc {
    font-size: 18px;
    line-height: 32px;
    padding-top: 10px;
    color: #666;
}
.download-inline {
    margin-top: 30px;
}
.cloud-section {
    padding: 50px 20px 60px;
}
.cloud-wrapper {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
}
.cloud-title {
    font-size: 42px;
    margin: 0;
}
.cloud-desc {
    font-size: 18px;
    line-height: 32px;
    padding-top: 10px;
    color: #666;
}
.cloud-image {
    margin-top: 50px;
}
.ai-promotion {
    padding: 150px 20px 120px;
    text-align: center;
}
.ai-content {
    max-width: 960px;
    margin: 0 auto;
}
.ai-title {
    font-size: 42px;
    margin: 0;
    font-weight: 600;
}
.ai-text {
    font-size: 18px;
    line-height: 32px;
    padding-top: 20px;
    margin: 0;
}
.ai-action {
    padding: 50px 0;
}
.ai-btn {
    border-radius: 20px;
    border: 1px solid #fff;
    padding: 10px 50px;
    font-size: 14px;
    display: inline-block;
    cursor: pointer;
}
.ai-visual {
    padding-bottom: 30px;
}
.site-footer {
    margin-top: 80px;
    border-top: #F1F1F1 1px solid;
    padding: 20px;
}
.footer-inner {
    text-align: center;
}
.copyright {
    margin: 0;
    color: #999;
    font-size: 12px;
}
.floating-download {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    animation: pulse 2s infinite;
}
.floating-download img {
    width: 60px;
    height: auto;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    border-radius: 50%;
    cursor: pointer;
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}
@media (max-width: 768px) {
    .feature-heading, .enterprise-title, .cloud-title, .ai-title {
        font-size: 28px;
    }
    .nav-wrap {
        flex-direction: column;
        gap: 15px;
    }
    .enterprise-section {
        padding: 50px 20px;
    }
    .cloud-section {
        padding: 30px 20px 40px;
    }
    .sidebar-feature {
        padding: 80px 20px 60px;
    }
}