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

    body {
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
        line-height: 1.6;
        color: #333;
        background-color: #f8f9fa;
    }

    .e5yv1o-header {
        background: #25d366;
        box-shadow: 0 2px 10px rgba(37, 211, 102, 0.1);
        position: sticky;
        top: 0;
        z-index: 1000;
    }

    .e5yv1o-nav {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 70px;
    }

    .e5yv1o-logo img {
        height: 40px;
        width: auto;
    }

    .e5yv1o-menu-toggle {
        display: none;
        flex-direction: column;
        background: none;
        border: none;
        cursor: pointer;
        padding: 5px;
    }

    .e5yv1o-menu-toggle span {
        width: 25px;
        height: 3px;
        background: white;
        margin: 3px 0;
        transition: 0.3s;
        border-radius: 2px;
    }

    .e5yv1o-nav-menu {
        display: flex;
        list-style: none;
        gap: 30px;
    }

    .e5yv1o-nav-menu a {
        color: white;
        text-decoration: none;
        font-weight: 500;
        padding: 10px 15px;
        border-radius: 25px;
        transition: all 0.3s ease;
    }

    .e5yv1o-nav-menu a:hover,
    .e5yv1o-nav-menu a.active {
        background: rgba(255, 255, 255, 0.2);
    }

    .e5yv1o-nav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }

    .e5yv1o-help-header {
        background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
        color: white;
        padding: 60px 0;
        text-align: center;
    }

    .e5yv1o-help-header-content {
        max-width: 800px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .e5yv1o-help-title {
        font-size: 3rem;
        font-weight: 700;
        margin-bottom: 20px;
    }

    .e5yv1o-help-subtitle {
        font-size: 1.2rem;
        opacity: 0.9;
        margin-bottom: 40px;
    }

    .e5yv1o-search-container {
        max-width: 600px;
        margin: 0 auto;
        position: relative;
    }

    .e5yv1o-search-box {
        width: 100%;
        padding: 18px 60px 18px 20px;
        font-size: 1.1rem;
        border: none;
        border-radius: 50px;
        outline: none;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }

    .e5yv1o-search-btn {
        position: absolute;
        right: 8px;
        top: 50%;
        transform: translateY(-50%);
        background: #25d366;
        border: none;
        width: 44px;
        height: 44px;
        border-radius: 50%;
        color: white;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.2rem;
    }

    .e5yv1o-main-content {
        max-width: 1200px;
        margin: 0 auto;
        padding: 80px 20px;
        display: grid;
        grid-template-columns: 300px 1fr;
        gap: 60px;
    }

    .e5yv1o-sidebar {
        background: white;
        border-radius: 15px;
        padding: 30px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        height: fit-content;
        position: sticky;
        top: 100px;
    }

    .e5yv1o-sidebar-title {
        font-size: 1.3rem;
        font-weight: 600;
        margin-bottom: 25px;
        color: #25d366;
    }

    .e5yv1o-category-list {
        list-style: none;
    }

    .e5yv1o-category-item {
        margin-bottom: 15px;
    }

    .e5yv1o-category-link {
        display: flex;
        align-items: center;
        padding: 12px 15px;
        color: #666;
        text-decoration: none;
        border-radius: 10px;
        transition: all 0.3s ease;
        font-weight: 500;
    }

    .e5yv1o-category-link:hover,
    .e5yv1o-category-link.active {
        background: #f0f9f4;
        color: #25d366;
    }

    .e5yv1o-category-icon {
        margin-right: 12px;
        font-size: 1.2rem;
    }

    .e5yv1o-help-content {
        background: white;
        border-radius: 15px;
        padding: 40px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    }

    .e5yv1o-section {
        margin-bottom: 60px;
    }

    .e5yv1o-section-title {
        font-size: 2rem;
        font-weight: 600;
        margin-bottom: 30px;
        color: #25d366;
        display: flex;
        align-items: center;
    }

    .e5yv1o-section-icon {
        margin-right: 15px;
        font-size: 2.2rem;
    }

    .e5yv1o-faq-grid {
        display: grid;
        gap: 25px;
    }

    .e5yv1o-faq-item {
        border: 2px solid #f0f0f0;
        border-radius: 12px;
        overflow: hidden;
        transition: all 0.3s ease;
    }

    .e5yv1o-faq-item:hover {
        border-color: #25d366;
        box-shadow: 0 4px 15px rgba(37, 211, 102, 0.1);
    }

    .e5yv1o-faq-question {
        padding: 25px;
        background: #f8f9fa;
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-weight: 600;
        font-size: 1.1rem;
        color: #333;
    }

    .e5yv1o-faq-toggle {
        font-size: 1.5rem;
        color: #25d366;
        transition: transform 0.3s ease;
    }

    .e5yv1o-faq-item.active .e5yv1o-faq-toggle {
        transform: rotate(45deg);
    }

    .e5yv1o-faq-answer {
        padding: 0 25px;
        max-height: 0;
        overflow: hidden;
        transition: all 0.3s ease;
        background: white;
    }

    .e5yv1o-faq-item.active .e5yv1o-faq-answer {
        padding: 25px;
        max-height: 500px;
    }

    .e5yv1o-faq-answer p {
        line-height: 1.7;
        color: #666;
    }

    .e5yv1o-guide-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
    }

    .e5yv1o-guide-card {
        background: #f8f9fa;
        border-radius: 12px;
        padding: 30px;
        text-align: center;
        transition: all 0.3s ease;
        border: 2px solid transparent;
    }

    .e5yv1o-guide-card:hover {
        background: white;
        border-color: #25d366;
        box-shadow: 0 8px 25px rgba(37, 211, 102, 0.15);
        transform: translateY(-5px);
    }

    .e5yv1o-guide-step {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 60px;
        height: 60px;
        background: #25d366;
        color: white;
        border-radius: 50%;
        font-size: 1.5rem;
        font-weight: 700;
        margin-bottom: 20px;
    }

    .e5yv1o-guide-title {
        font-size: 1.3rem;
        font-weight: 600;
        margin-bottom: 15px;
        color: #333;
    }

    .e5yv1o-guide-desc {
        color: #666;
        line-height: 1.6;
    }

    .e5yv1o-contact-section {
        background: linear-gradient(135deg, #f0f9f4 0%, #e8f5e8 100%);
        border-radius: 15px;
        padding: 40px;
        text-align: center;
    }

    .e5yv1o-contact-title {
        font-size: 1.8rem;
        font-weight: 600;
        margin-bottom: 15px;
        color: #25d366;
    }

    .e5yv1o-contact-desc {
        color: #666;
        margin-bottom: 30px;
        font-size: 1.1rem;
    }

    .e5yv1o-contact-buttons {
        display: flex;
        gap: 20px;
        justify-content: center;
        flex-wrap: wrap;
    }

    .e5yv1o-contact-btn {
        padding: 15px 30px;
        border: none;
        border-radius: 50px;
        font-weight: 600;
        text-decoration: none;
        transition: all 0.3s ease;
        display: inline-flex;
        align-items: center;
        gap: 10px;
    }

    .e5yv1o-contact-btn.primary {
        background: #25d366;
        color: white;
    }

    .e5yv1o-contact-btn.secondary {
        background: white;
        color: #25d366;
        border: 2px solid #25d366;
    }

    .e5yv1o-contact-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(37, 211, 102, 0.3);
    }

    .e5yv1o-footer {
        background: #1a1a1a;
        color: white;
        padding: 60px 0 30px;
        margin-top: 80px;
    }

    .e5yv1o-footer-content {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 40px;
    }

    .e5yv1o-footer-section h3 {
        color: #25d366;
        margin-bottom: 20px;
        font-size: 1.2rem;
    }

    .e5yv1o-footer-section ul {
        list-style: none;
    }

    .e5yv1o-footer-section ul li {
        margin-bottom: 10px;
    }

    .e5yv1o-footer-section ul li a {
        color: #ccc;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    .e5yv1o-footer-section ul li a:hover {
        color: #25d366;
    }

    .e5yv1o-footer-bottom {
        border-top: 1px solid #333;
        margin-top: 40px;
        padding-top: 20px;
        text-align: center;
        color: #999;
    }

    @media (max-width: 768px) {
        .e5yv1o-menu-toggle {
            display: flex;
        }

        .e5yv1o-nav-menu {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: #25d366;
            flex-direction: column;
            padding: 20px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        }

        .e5yv1o-nav-menu.active {
            display: flex;
        }

        .e5yv1o-help-title {
            font-size: 2rem;
        }

        .e5yv1o-main-content {
            grid-template-columns: 1fr;
            gap: 40px;
            padding: 40px 20px;
        }

        .e5yv1o-sidebar {
            position: static;
            order: 2;
        }

        .e5yv1o-help-content {
            padding: 25px;
        }

        .e5yv1o-section-title {
            font-size: 1.5rem;
        }

        .e5yv1o-contact-buttons {
            flex-direction: column;
            align-items: center;
        }

        .e5yv1o-guide-grid {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 480px) {
        .e5yv1o-help-header {
            padding: 40px 0;
        }

        .e5yv1o-help-title {
            font-size: 1.8rem;
        }

        .e5yv1o-search-box {
            padding: 15px 50px 15px 15px;
        }

        .e5yv1o-faq-question {
            padding: 20px;
            font-size: 1rem;
        }

        .e5yv1o-faq-item.active .e5yv1o-faq-answer {
            padding: 20px;
        }
    }