* {
        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;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 20px;
        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-support-header {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        padding: 60px 20px 40px;
        text-align: center;
    }

    .pszzj-support-title {
        max-width: 800px;
        margin: 0 auto;
    }

    .pszzj-support-title h1 {
        font-size: 3rem;
        font-weight: 700;
        margin-bottom: 20px;
    }

    .pszzj-support-title p {
        font-size: 1.2rem;
        opacity: 0.9;
        margin-bottom: 40px;
    }

    .pszzj-search-box {
        max-width: 600px;
        margin: 0 auto;
        position: relative;
    }

    .pszzj-search-input {
        width: 100%;
        padding: 15px 50px 15px 20px;
        font-size: 1.1rem;
        border: none;
        border-radius: 50px;
        outline: none;
        box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    }

    .pszzj-search-btn {
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        background: #4285f4;
        color: white;
        border: none;
        padding: 8px 15px;
        border-radius: 25px;
        cursor: pointer;
        font-size: 0.9rem;
        transition: background 0.3s;
    }

    .pszzj-search-btn:hover {
        background: #3367d6;
    }

    .pszzj-quick-links {
        display: flex;
        justify-content: center;
        gap: 20px;
        margin-top: 30px;
        flex-wrap: wrap;
    }

    .pszzj-quick-link {
        background: rgba(255,255,255,0.2);
        color: white;
        padding: 8px 16px;
        border-radius: 20px;
        text-decoration: none;
        font-size: 0.9rem;
        transition: background 0.3s;
    }

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

    .pszzj-support-content {
        max-width: 1200px;
        margin: 0 auto;
        padding: 60px 20px;
    }

    .pszzj-support-categories {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-bottom: 60px;
    }

    .pszzj-category-card {
        background: #f8f9fa;
        border-radius: 15px;
        padding: 30px;
        text-align: center;
        transition: transform 0.3s, box-shadow 0.3s;
        cursor: pointer;
    }

    .pszzj-category-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }

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

    .pszzj-category-card h3 {
        font-size: 1.5rem;
        margin-bottom: 15px;
        color: #333;
    }

    .pszzj-category-card p {
        color: #666;
        line-height: 1.6;
    }

    .pszzj-faq-section {
        margin-bottom: 60px;
    }

    .pszzj-section-title {
        text-align: center;
        margin-bottom: 40px;
    }

    .pszzj-section-title h2 {
        font-size: 2.5rem;
        color: #333;
        margin-bottom: 15px;
    }

    .pszzj-section-title p {
        font-size: 1.1rem;
        color: #666;
        max-width: 600px;
        margin: 0 auto;
    }

    .pszzj-faq-list {
        max-width: 800px;
        margin: 0 auto;
    }

    .pszzj-faq-item {
        background: white;
        border-radius: 10px;
        margin-bottom: 15px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        overflow: hidden;
    }

    .pszzj-faq-question {
        width: 100%;
        background: none;
        border: none;
        padding: 25px;
        text-align: left;
        font-size: 1.1rem;
        font-weight: 600;
        color: #333;
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
        transition: background 0.3s;
    }

    .pszzj-faq-question:hover {
        background: #f8f9fa;
    }

    .pszzj-faq-toggle {
        font-size: 1.5rem;
        color: #4285f4;
        transition: transform 0.3s;
    }

    .pszzj-faq-item.active .pszzj-faq-toggle {
        transform: rotate(45deg);
    }

    .pszzj-faq-answer {
        padding: 0 25px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s, padding 0.3s;
    }

    .pszzj-faq-item.active .pszzj-faq-answer {
        padding: 0 25px 25px;
        max-height: 500px;
    }

    .pszzj-faq-answer p {
        color: #666;
        line-height: 1.8;
    }

    .pszzj-install-guide {
        background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
        border-radius: 20px;
        padding: 50px;
        margin-bottom: 60px;
        color: white;
    }

    .pszzj-guide-header {
        text-align: center;
        margin-bottom: 40px;
    }

    .pszzj-guide-header h2 {
        font-size: 2.5rem;
        margin-bottom: 15px;
    }

    .pszzj-guide-steps {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 30px;
    }

    .pszzj-step-card {
        background: rgba(255,255,255,0.1);
        border-radius: 15px;
        padding: 25px;
        text-align: center;
        backdrop-filter: blur(10px);
    }

    .pszzj-step-number {
        width: 50px;
        height: 50px;
        background: white;
        color: #f5576c;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        font-weight: bold;
        margin: 0 auto 20px;
    }

    .pszzj-step-card h3 {
        font-size: 1.3rem;
        margin-bottom: 15px;
    }

    .pszzj-step-card p {
        opacity: 0.9;
        line-height: 1.6;
    }

    .pszzj-contact-section {
        background: #f8f9fa;
        border-radius: 20px;
        padding: 50px;
        text-align: center;
    }

    .pszzj-contact-section h2 {
        font-size: 2.5rem;
        color: #333;
        margin-bottom: 20px;
    }

    .pszzj-contact-section p {
        font-size: 1.1rem;
        color: #666;
        margin-bottom: 40px;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }

    .pszzj-contact-options {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 30px;
        max-width: 800px;
        margin: 0 auto;
    }

    .pszzj-contact-card {
        background: white;
        border-radius: 15px;
        padding: 30px;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        transition: transform 0.3s;
    }

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

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

    .pszzj-contact-card h3 {
        font-size: 1.3rem;
        color: #333;
        margin-bottom: 15px;
    }

    .pszzj-contact-card p {
        color: #666;
        margin-bottom: 20px;
    }

    .pszzj-contact-btn {
        background: #4285f4;
        color: white;
        padding: 12px 25px;
        border: none;
        border-radius: 25px;
        text-decoration: none;
        display: inline-block;
        transition: background 0.3s;
        font-weight: 500;
    }

    .pszzj-contact-btn:hover {
        background: #3367d6;
        color: white;
    }

    .pszzj-footer {
        background: #1a1a1a;
        color: #ccc;
        padding: 60px 20px 30px;
        margin-top: 80px;
    }

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

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

    .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;
        padding-top: 30px;
        text-align: center;
        color: #999;
    }

    .pszzj-footer-brand {
        font-size: 1.1rem;
        font-weight: 600;
        color: white;
        margin-bottom: 15px;
    }

    @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 2px 10px 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-support-title h1 {
            font-size: 2rem;
        }

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

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

        .pszzj-section-title h2 {
            font-size: 2rem;
        }

        .pszzj-install-guide,
        .pszzj-contact-section {
            padding: 30px 20px;
        }

        .pszzj-guide-header h2 {
            font-size: 2rem;
        }

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

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

    @media (max-width: 480px) {
        .pszzj-support-title h1 {
            font-size: 1.8rem;
        }

        .pszzj-support-title p {
            font-size: 1rem;
        }

        .pszzj-search-input {
            font-size: 1rem;
            padding: 12px 45px 12px 15px;
        }

        .pszzj-category-card,
        .pszzj-step-card,
        .pszzj-contact-card {
            padding: 20px;
        }

        .pszzj-faq-question {
            padding: 20px;
            font-size: 1rem;
        }

        .pszzj-faq-item.active .pszzj-faq-answer {
            padding: 0 20px 20px;
        }
    }