Changed around line 1
+ :root {
+ --primary-color: #2563eb;
+ --secondary-color: #1e40af;
+ --text-color: #1f2937;
+ --background-light: #f8fafc;
+ --card-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
+ --transition: all 0.3s ease;
+ }
+
+ * {
+ margin: 0;
+ padding: 0;
+ box-sizing: border-box;
+ }
+
+ body {
+ font-family: system-ui, -apple-system, sans-serif;
+ line-height: 1.6;
+ color: var(--text-color);
+ }
+
+ .main-nav {
+ display: flex;
+ justify-content: space-between;
+ align-items: center;
+ padding: 1rem 5%;
+ background: white;
+ box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+ position: fixed;
+ width: 100%;
+ top: 0;
+ z-index: 1000;
+ }
+
+ .logo {
+ font-size: 1.5rem;
+ font-weight: bold;
+ color: var(--primary-color);
+ }
+
+ .nav-links {
+ display: flex;
+ gap: 2rem;
+ list-style: none;
+ }
+
+ .nav-links a {
+ text-decoration: none;
+ color: var(--text-color);
+ font-weight: 500;
+ transition: var(--transition);
+ }
+
+ .nav-links a:hover {
+ color: var(--primary-color);
+ }
+
+ .mobile-menu {
+ display: none;
+ }
+
+ .hero {
+ padding: 8rem 5% 4rem;
+ text-align: center;
+ background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
+ color: white;
+ }
+
+ .hero h1 {
+ font-size: 3rem;
+ margin-bottom: 1rem;
+ }
+
+ section {
+ padding: 4rem 5%;
+ }
+
+ .tools-grid, .tutorial-grid, .cases-grid {
+ display: grid;
+ grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
+ gap: 2rem;
+ margin-top: 2rem;
+ }
+
+ .tool-card {
+ background: white;
+ padding: 2rem;
+ border-radius: 8px;
+ box-shadow: var(--card-shadow);
+ transition: var(--transition);
+ }
+
+ .tool-card:hover {
+ transform: translateY(-5px);
+ }
+
+ .tool-icon {
+ font-size: 2rem;
+ margin-bottom: 1rem;
+ }
+
+ .download-btn {
+ background: var(--primary-color);
+ color: white;
+ border: none;
+ padding: 0.5rem 1rem;
+ border-radius: 4px;
+ cursor: pointer;
+ transition: var(--transition);
+ }
+
+ .download-btn:hover {
+ background: var(--secondary-color);
+ }
+
+ .tutorial-card .video-placeholder {
+ background: #ddd;
+ aspect-ratio: 16/9;
+ border-radius: 8px;
+ margin-bottom: 1rem;
+ }
+
+ .case-card {
+ background: var(--background-light);
+ padding: 2rem;
+ border-radius: 8px;
+ box-shadow: var(--card-shadow);
+ }
+
+ footer {
+ background: var(--text-color);
+ color: white;
+ padding: 3rem 5%;
+ }
+
+ .footer-content {
+ display: grid;
+ grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
+ gap: 2rem;
+ }
+
+ .footer-section ul {
+ list-style: none;
+ }
+
+ .footer-section a {
+ color: white;
+ text-decoration: none;
+ opacity: 0.8;
+ transition: var(--transition);
+ }
+
+ .footer-section a:hover {
+ opacity: 1;
+ }
+
+ @media (max-width: 768px) {
+ .mobile-menu {
+ display: block;
+ background: none;
+ border: none;
+ cursor: pointer;
+ }
+
+ .mobile-menu span {
+ display: block;
+ width: 25px;
+ height: 3px;
+ background: var(--text-color);
+ margin: 5px 0;
+ transition: var(--transition);
+ }
+
+ .nav-links {
+ display: none;
+ position: absolute;
+ top: 100%;
+ left: 0;
+ right: 0;
+ background: white;
+ flex-direction: column;
+ padding: 1rem;
+ text-align: center;
+ }
+
+ .nav-links.active {
+ display: flex;
+ }
+ }