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

    body {
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        line-height: 1.6;
        color: #333;
        background-color: #fff;
    }

    .pszzj-header {
        background: #fff;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        position: sticky;
        top: 0;
        z-index: 1000;
    }

    .pszzj-nav {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 70px;
    }

    .pszzj-logo img {
        height: 40px;
        width: auto;
    }

    .pszzj-menu-toggle {
        display: none;
        flex-direction: column;
        background: none;
        border: none;
        cursor: pointer;
        padding: 5px;
    }

    .pszzj-menu-toggle span {
        width: 25px;
        height: 3px;
        background: #333;
        margin: 3px 0;
        transition: 0.3s;
    }

    .pszzj-nav-menu {
        display: flex;
        list-style: none;
        gap: 30px;
    }

    .pszzj-nav-menu a {
        text-decoration: none;
        color: #333;
        font-weight: 500;
        transition: color 0.3s;
        padding: 10px 0;
    }

    .pszzj-nav-menu a:hover,
    .pszzj-nav-menu a.active {
        color: #4285f4;
    }

    .pszzj-nav-overlay {
        display: none;
    }

    .pszzj-dev-header {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        padding: 60px 0;
        text-align: center;
    }

    .pszzj-dev-header-content {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .pszzj-dev-title {
        font-size: 3rem;
        font-weight: 700;
        margin-bottom: 20px;
        background: linear-gradient(45deg, #fff, #e3f2fd);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .pszzj-dev-subtitle {
        font-size: 1.3rem;
        opacity: 0.9;
        max-width: 600px;
        margin: 0 auto 40px;
    }

    .pszzj-dev-stats {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }

    .pszzj-stat-item {
        text-align: center;
    }

    .pszzj-stat-number {
        font-size: 2.5rem;
        font-weight: 700;
        display: block;
    }

    .pszzj-stat-label {
        font-size: 1rem;
        opacity: 0.8;
        margin-top: 5px;
    }

    .pszzj-dev-tools {
        padding: 80px 0;
        background: #f8f9fa;
    }

    .pszzj-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .pszzj-section-title {
        font-size: 2.5rem;
        font-weight: 700;
        text-align: center;
        margin-bottom: 20px;
        color: #333;
    }

    .pszzj-section-desc {
        font-size: 1.2rem;
        text-align: center;
        color: #666;
        max-width: 800px;
        margin: 0 auto 60px;
    }

    .pszzj-tools-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 30px;
    }

    .pszzj-tool-card {
        background: white;
        border-radius: 15px;
        padding: 40px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        transition: transform 0.3s, box-shadow 0.3s;
        border: 1px solid #e0e0e0;
    }

    .pszzj-tool-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    }

    .pszzj-tool-icon {
        font-size: 3rem;
        margin-bottom: 20px;
        display: block;
    }

    .pszzj-tool-title {
        font-size: 1.5rem;
        font-weight: 600;
        margin-bottom: 15px;
        color: #333;
    }

    .pszzj-tool-desc {
        color: #666;
        line-height: 1.6;
        margin-bottom: 20px;
    }

    .pszzj-tool-features {
        list-style: none;
    }

    .pszzj-tool-features li {
        padding: 5px 0;
        color: #555;
        position: relative;
        padding-left: 20px;
    }

    .pszzj-tool-features li:before {
        content: "✓";
        color: #4caf50;
        font-weight: bold;
        position: absolute;
        left: 0;
    }

    .pszzj-api-section {
        padding: 80px 0;
        background: white;
    }

    .pszzj-api-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
    }

    .pszzj-api-card {
        background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
        border-radius: 15px;
        padding: 30px;
        text-align: center;
        transition: transform 0.3s;
    }

    .pszzj-api-card:hover {
        transform: translateY(-5px);
    }

    .pszzj-api-icon {
        font-size: 2.5rem;
        margin-bottom: 20px;
        display: block;
    }

    .pszzj-api-title {
        font-size: 1.3rem;
        font-weight: 600;
        margin-bottom: 15px;
        color: #333;
    }

    .pszzj-api-desc {
        color: #666;
        font-size: 0.95rem;
        line-height: 1.5;
    }

    .pszzj-resources {
        padding: 80px 0;
        background: #f8f9fa;
    }

    .pszzj-resources-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
    }

    .pszzj-resource-card {
        background: white;
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        transition: transform 0.3s;
    }

    .pszzj-resource-card:hover {
        transform: translateY(-3px);
    }

    .pszzj-resource-header {
        background: linear-gradient(45deg, #4285f4, #34a853);
        color: white;
        padding: 20px;
        text-align: center;
    }

    .pszzj-resource-icon {
        font-size: 2rem;
        margin-bottom: 10px;
        display: block;
    }

    .pszzj-resource-title {
        font-size: 1.2rem;
        font-weight: 600;
    }

    .pszzj-resource-content {
        padding: 25px;
    }

    .pszzj-resource-list {
        list-style: none;
    }

    .pszzj-resource-list li {
        padding: 8px 0;
        border-bottom: 1px solid #eee;
        color: #555;
    }

    .pszzj-resource-list li:last-child {
        border-bottom: none;
    }

    .pszzj-resource-list a {
        color: #4285f4;
        text-decoration: none;
        transition: color 0.3s;
    }

    .pszzj-resource-list a:hover {
        color: #1a73e8;
    }

    .pszzj-community {
        padding: 80px 0;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        text-align: center;
    }

    .pszzj-community-title {
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: 20px;
    }

    .pszzj-community-desc {
        font-size: 1.2rem;
        opacity: 0.9;
        max-width: 600px;
        margin: 0 auto 40px;
    }

    .pszzj-community-links {
        display: flex;
        justify-content: center;
        gap: 20px;
        flex-wrap: wrap;
    }

    .pszzj-community-link {
        background: rgba(255,255,255,0.2);
        color: white;
        padding: 15px 30px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: 500;
        transition: background 0.3s;
        backdrop-filter: blur(10px);
    }

    .pszzj-community-link:hover {
        background: rgba(255,255,255,0.3);
        color: white;
    }

    .pszzj-footer {
        background: #1a1a1a;
        color: #ccc;
        padding: 60px 0 30px;
    }

    .pszzj-footer-content {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 40px;
    }

    .pszzj-footer-section h3 {
        color: white;
        font-size: 1.2rem;
        margin-bottom: 20px;
        font-weight: 600;
    }

    .pszzj-footer-section ul {
        list-style: none;
    }

    .pszzj-footer-section ul li {
        margin-bottom: 10px;
    }

    .pszzj-footer-section ul li a {
        color: #ccc;
        text-decoration: none;
        transition: color 0.3s;
    }

    .pszzj-footer-section ul li a:hover {
        color: #4285f4;
    }

    .pszzj-footer-bottom {
        border-top: 1px solid #333;
        margin-top: 40px;
        padding-top: 20px;
        text-align: center;
        color: #999;
    }

    @media (max-width: 768px) {
        .pszzj-menu-toggle {
            display: flex;
        }

        .pszzj-nav-menu {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: white;
            flex-direction: column;
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }

        .pszzj-nav-menu.active {
            display: flex;
        }

        .pszzj-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 999;
        }

        .pszzj-nav-overlay.active {
            display: block;
        }

        .pszzj-dev-title {
            font-size: 2rem;
        }

        .pszzj-dev-subtitle {
            font-size: 1.1rem;
        }

        .pszzj-section-title {
            font-size: 2rem;
        }

        .pszzj-tools-grid {
            grid-template-columns: 1fr;
        }

        .pszzj-tool-card {
            padding: 30px 20px;
        }

        .pszzj-community-links {
            flex-direction: column;
            align-items: center;
        }

        .pszzj-community-link {
            width: 200px;
            text-align: center;
        }
    }

    @media (max-width: 480px) {
        .pszzj-nav {
            padding: 0 15px;
        }

        .pszzj-dev-header {
            padding: 40px 0;
        }

        .pszzj-dev-title {
            font-size: 1.8rem;
        }

        .pszzj-section-title {
            font-size: 1.8rem;
        }

        .pszzj-tool-card {
            padding: 25px 15px;
        }

        .pszzj-api-card,
        .pszzj-resource-content {
            padding: 20px;
        }
    }