* {
            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: #f8f9fa;
        }

        /* Header & Navigation */
        .dljb8-header {
            background: white;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .dljb8-nav {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
            position: relative;
        }

        .dljb8-logo {
            display: flex;
            align-items: center;
            text-decoration: none;
            font-size: 20px;
            font-weight: bold;
            color: #0088cc;
        }

        .dljb8-logo img {
            height: 40px;
            width: auto;
            margin-right: 10px;
        }

        .dljb8-nav-menu {
            display: flex;
            gap: 40px;
            list-style: none;
            align-items: center;
        }

        .dljb8-nav-menu a {
            color: #333;
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.3s;
            position: relative;
        }

        .dljb8-nav-menu a:hover {
            color: #0088cc;
        }

        .dljb8-nav-menu a.active {
            color: #0088cc;
        }

        .dljb8-nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            right: 0;
            height: 3px;
            background: #0088cc;
            border-radius: 2px;
        }

        .dljb8-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 10px;
        }

        .dljb8-menu-toggle span {
            width: 24px;
            height: 3px;
            background: #333;
            border-radius: 2px;
            transition: all 0.3s;
        }

        .dljb8-menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(10px, 10px);
        }

        .dljb8-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .dljb8-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(8px, -8px);
        }

        .dljb8-nav-overlay {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
        }

        .dljb8-nav-overlay.active {
            display: block;
        }

        /* Page Header */
        .dljb8-page-header {
            background: linear-gradient(135deg, #0088cc 0%, #005fa3 100%);
            color: white;
            padding: 60px 20px;
            text-align: center;
        }

        .dljb8-page-header-content {
            max-width: 1000px;
            margin: 0 auto;
        }

        .dljb8-page-title {
            font-size: 48px;
            font-weight: bold;
            margin-bottom: 15px;
        }

        .dljb8-page-subtitle {
            font-size: 18px;
            opacity: 0.95;
            margin-bottom: 30px;
        }

        .dljb8-breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            opacity: 0.9;
        }

        .dljb8-breadcrumb a {
            color: white;
            text-decoration: none;
            transition: opacity 0.3s;
        }

        .dljb8-breadcrumb a:hover {
            opacity: 0.7;
        }

        /* Main Content */
        .dljb8-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .dljb8-help-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 40px;
            padding: 60px 0;
        }

        /* Sidebar */
        .dljb8-sidebar {
            background: white;
            border-radius: 12px;
            padding: 30px;
            height: fit-content;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            position: sticky;
            top: 90px;
        }

        .dljb8-sidebar-title {
            font-size: 16px;
            font-weight: bold;
            color: #333;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .dljb8-sidebar-menu {
            list-style: none;
        }

        .dljb8-sidebar-menu li {
            margin-bottom: 12px;
        }

        .dljb8-sidebar-menu a {
            color: #666;
            text-decoration: none;
            font-size: 14px;
            display: block;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.3s;
            border-left: 3px solid transparent;
        }

        .dljb8-sidebar-menu a:hover,
        .dljb8-sidebar-menu a.active {
            color: #0088cc;
            background-color: #f0f7ff;
            border-left-color: #0088cc;
        }

        /* Search */
        .dljb8-search-box {
            margin-bottom: 30px;
        }

        .dljb8-search-input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 14px;
            transition: border-color 0.3s;
        }

        .dljb8-search-input:focus {
            outline: none;
            border-color: #0088cc;
            box-shadow: 0 0 0 3px rgba(0, 136, 204, 0.1);
        }

        /* Content Sections */
        .dljb8-content-area {
            background: white;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        .dljb8-section {
            margin-bottom: 50px;
        }

        .dljb8-section:last-child {
            margin-bottom: 0;
        }

        .dljb8-section-title {
            font-size: 28px;
            font-weight: bold;
            color: #333;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 3px solid #0088cc;
            display: inline-block;
        }

        /* FAQ Section */
        .dljb8-faq-list {
            list-style: none;
        }

        .dljb8-faq-item {
            margin-bottom: 15px;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .dljb8-faq-item:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }

        .dljb8-faq-question {
            background: #f8f9fa;
            padding: 18px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: #333;
            user-select: none;
            transition: background 0.3s;
        }

        .dljb8-faq-item:hover .dljb8-faq-question {
            background: #f0f7ff;
        }

        .dljb8-faq-icon {
            font-size: 20px;
            transition: transform 0.3s;
            color: #0088cc;
        }

        .dljb8-faq-item.active .dljb8-faq-icon {
            transform: rotate(180deg);
        }

        .dljb8-faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s;
            background: white;
        }

        .dljb8-faq-item.active .dljb8-faq-answer {
            max-height: 500px;
        }

        .dljb8-faq-text {
            padding: 20px 18px;
            color: #666;
            line-height: 1.8;
            font-size: 15px;
        }

        /* Install Guide */
        .dljb8-guide-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }

        .dljb8-guide-card {
            background: linear-gradient(135deg, #f8f9fa 0%, #f0f7ff 100%);
            border: 2px solid #e8f0ff;
            border-radius: 12px;
            padding: 25px;
            text-align: center;
            transition: all 0.3s;
        }

        .dljb8-guide-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 136, 204, 0.15);
            border-color: #0088cc;
        }

        .dljb8-guide-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #0088cc 0%, #005fa3 100%);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: bold;
            margin: 0 auto 15px;
        }

        .dljb8-guide-title {
            font-size: 18px;
            font-weight: bold;
            color: #333;
            margin-bottom: 12px;
        }

        .dljb8-guide-text {
            color: #666;
            font-size: 14px;
            line-height: 1.6;
        }

        /* Categories Section */
        .dljb8-categories {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }

        .dljb8-category-card {
            background: white;
            border: 2px solid #e0e0e0;
            border-radius: 12px;
            padding: 25px;
            cursor: pointer;
            transition: all 0.3s;
            text-decoration: none;
            color: inherit;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .dljb8-category-card:hover {
            border-color: #0088cc;
            box-shadow: 0 6px 16px rgba(0, 136, 204, 0.12);
        }

        .dljb8-category-icon {
            font-size: 32px;
        }

        .dljb8-category-title {
            font-size: 18px;
            font-weight: bold;
            color: #333;
        }

        .dljb8-category-desc {
            color: #666;
            font-size: 14px;
            line-height: 1.5;
        }

        /* Featured Box */
        .dljb8-featured-box {
            background: linear-gradient(135deg, #0088cc 0%, #005fa3 100%);
            color: white;
            border-radius: 12px;
            padding: 30px;
            margin: 40px 0;
            text-align: center;
        }

        .dljb8-featured-title {
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 15px;
        }

        .dljb8-featured-text {
            font-size: 16px;
            opacity: 0.95;
            margin-bottom: 25px;
        }

        .dljb8-btn {
            display: inline-block;
            padding: 12px 28px;
            background: white;
            color: #0088cc;
            text-decoration: none;
            border-radius: 6px;
            font-weight: bold;
            font-size: 15px;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
        }

        .dljb8-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
        }

        .dljb8-btn-secondary {
            background: transparent;
            color: white;
            border: 2px solid white;
        }

        .dljb8-btn-secondary:hover {
            background: white;
            color: #0088cc;
        }

        /* Footer */
        .dljb8-footer {
            background: #1a1a1a;
            color: #ccc;
            padding: 60px 20px 30px;
            margin-top: 80px;
        }

        .dljb8-footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .dljb8-footer-column h3 {
            color: white;
            font-size: 16px;
            margin-bottom: 20px;
            font-weight: bold;
        }

        .dljb8-footer-column ul {
            list-style: none;
        }

        .dljb8-footer-column li {
            margin-bottom: 12px;
        }

        .dljb8-footer-column a {
            color: #ccc;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }

        .dljb8-footer-column a:hover {
            color: white;
        }

        .dljb8-footer-bottom {
            border-top: 1px solid #333;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .dljb8-footer-brand {
            color: white;
            font-weight: bold;
            font-size: 16px;
        }

        .dljb8-footer-links {
            display: flex;
            gap: 25px;
            list-style: none;
        }

        .dljb8-footer-links a {
            color: #ccc;
            text-decoration: none;
            font-size: 13px;
            transition: color 0.3s;
        }

        .dljb8-footer-links a:hover {
            color: white;
        }

        .dljb8-footer-copyright {
            color: #999;
            font-size: 13px;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .dljb8-menu-toggle {
                display: flex;
            }

            .dljb8-nav-menu {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                gap: 0;
                display: none;
                padding: 20px;
                box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
                z-index: 1001;
            }

            .dljb8-nav-menu.active {
                display: flex;
            }

            .dljb8-nav-menu a {
                padding: 15px;
                border-bottom: 1px solid #f0f0f0;
            }

            .dljb8-nav-menu a.active::after {
                display: none;
            }

            .dljb8-page-title {
                font-size: 32px;
            }

            .dljb8-help-layout {
                grid-template-columns: 1fr;
                gap: 30px;
                padding: 40px 0;
            }

            .dljb8-sidebar {
                position: static;
                margin-bottom: 20px;
            }

            .dljb8-content-area {
                padding: 25px;
            }

            .dljb8-section-title {
                font-size: 22px;
            }

            .dljb8-guide-steps {
                grid-template-columns: 1fr;
            }

            .dljb8-footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .dljb8-footer-links {
                flex-direction: column;
                gap: 15px;
            }
        }

        @media (max-width: 480px) {
            .dljb8-page-header {
                padding: 40px 15px;
            }

            .dljb8-page-title {
                font-size: 24px;
            }

            .dljb8-page-subtitle {
                font-size: 14px;
            }

            .dljb8-content-area {
                padding: 15px;
                border-radius: 8px;
            }

            .dljb8-section-title {
                font-size: 20px;
            }

            .dljb8-faq-question {
                padding: 14px;
                font-size: 14px;
            }

            .dljb8-faq-text {
                padding: 15px 14px;
            }
        }