:root {
            --primary-color: #0ea5e9;
            --primary-hover: #0284c7;
            --secondary-color: #6c757d;
            --success-color: #28a745;
            --danger-color: #dc3545;
            --warning-color: #ffc107;
            --light-color: #f8f9fa;
            --dark-color: #343a40;
            --bg-primary: #ffffff;
            --bg-secondary: #f8f9fa;
            --bg-sidebar: #f2f2f7;
            --text-primary: #212529;
            --text-secondary: #6c757d;
            --text-white: #ffffff;
            --border-color: #e9ecef;
            --gradient-1: linear-gradient(135deg, #ee9025 0%, #ee9025 100%);
            --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
            --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
            --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-primary);
            background-color: var(--bg-secondary);
        }

        /* Navbar — azure sky blue with warm orange glow & cloud */
        .navbar {
            position: fixed;
            top: 0;
            width: 100%;
            background: linear-gradient(135deg, #0066EE 0%, #0088FF 30%, #33AAFF 55%, #f5c87a 92%, #f0b960 100%);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.35);
            z-index: 1000;
            transition: all 0.3s ease;
        }

        /* White cloud decoration on the navbar */
        .navbar::before {
            content: '';
            position: absolute;
            top: -18px;
            right: 12%;
            width: 120px;
            height: 50px;
            background: radial-gradient(ellipse at 50% 70%, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.6) 40%, rgba(255,255,255,0.15) 70%, transparent 100%);
            border-radius: 60% 60% 40% 40% / 70% 70% 30% 30%;
            filter: blur(1.5px);
            pointer-events: none;
            z-index: 1;
            animation: navCloudDrift 16s ease-in-out infinite;
        }

        /* Subtle warm glow spot */
        .navbar::after {
            content: '';
            position: absolute;
            top: -10px;
            right: 25%;
            width: 180px;
            height: 60px;
            background: radial-gradient(ellipse at 50% 80%, rgba(252, 196, 100, 0.35) 0%, rgba(252, 176, 69, 0.12) 50%, transparent 80%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
            filter: blur(6px);
        }

        @keyframes navCloudDrift {
            0%, 100% { transform: translateX(0) scale(1); opacity: 0.85; }
            50% { transform: translateX(30px) scale(1.08); opacity: 1; }
        }

        .navbar.scrolled {
            background: linear-gradient(135deg, #0055CC 0%, #0077EE 30%, #2299EE 55%, #e8b563 92%, #dba64e 100%);
            box-shadow: 0 4px 24px rgba(100, 180, 220, 0.25), 0 2px 12px rgba(240, 180, 80, 0.12);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
        }

        .navbar.scrolled .nav-menu > li > a {
            color: #ffffff;
            text-shadow: 0 1px 3px rgba(0, 60, 120, 0.15);
        }

        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
        }

        .logo img {
            vertical-align: middle;
        }

        .nav-menu {
            display: flex;
            gap: 2.5rem;
            list-style: none;
            align-items: center;
        }

        .nav-menu a {
            color: #ffffff;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            position: relative;
            padding: 0.5rem 0;
            text-shadow: 0 1px 3px rgba(0, 60, 120, 0.18);
        }

        .nav-menu > li > a:hover {
            color: #fff8e1;
            text-shadow: 0 0 8px rgba(252, 196, 100, 0.5);
        }

        /* Dropdown Menu - Modern Style */
        .nav-menu li {
            position: relative;
        }

        /* 添加悬停区域，防止菜单消失 */
        .nav-menu > li::before {
            content: '';
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            height: 50px;
            background: transparent;
            z-index: 998;
        }

        .nav-menu .dropdown {
            visibility: hidden;
            opacity: 0;
            position: fixed;
            top: 55px;
            left: 0;
            right: 0;
            transform: translateY(0);
            background: white;
            width: 100vw;
            border-radius: 0;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
            z-index: 999;
            transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0.25s;
            pointer-events: none;
            padding: 2rem 0;
            margin-top: 0;
        }

        .nav-menu li:hover > .dropdown,
        .nav-menu li:focus-within > .dropdown,
        .nav-menu .dropdown:hover {
            visibility: visible;
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
            transition-delay: 0s;
        }

        .nav-menu .dropdown.show,
        .user-dropdown.show,
        .lang-dropdown.show {
            visibility: visible;
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
            transition-delay: 0s;
        }

        /* Dropdown inner container */
        .dropdown-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* Dropdown grid layout */
        .dropdown-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1rem;
        }

        /* Category header styling */
        .dropdown-category-header {
            color: #6c757d;
            font-size: 0.875rem;
            font-weight: 600;
            padding: 0 0 12px 0;
            margin: 0;
            border-bottom: 2px solid #dee2e6;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* Pricing dropdown column layout */
        #helpProductCategoriesDropdown {
            display: flex;
            flex-direction: row;
            gap: 2rem;
            width: 100%;
        }

        #helpProductCategoriesDropdown .dropdown-category-column {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        #helpProductCategoriesDropdown .dropdown-category-header {
            color: #6c757d;
            font-size: 0.875rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            padding: 0 0 12px 0;
            margin: 0;
            border-bottom: 2px solid #dee2e6;
        }

        #helpProductCategoriesDropdown .dropdown-category-items {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        #helpProductCategoriesDropdown .dropdown-category-items a {
            display: flex;
            align-items: center;
            gap: 0.875rem;
            padding: 0.875rem 1rem;
            width: 100%;
            box-sizing: border-box;
            cursor: pointer;
            color: #1a1a1a;
            text-decoration: none;
            transition: all 0.25s ease;
            position: relative;
            border-radius: 8px;
            background: transparent;
            font-size: 0.95rem;
        }

        #helpProductCategoriesDropdown .dropdown-category-items a:hover {
            background: #f8f9fa;
            transform: translateX(0);
        }

        /* Product dropdown - same column layout as pricing */
        #helpProductListDropdown {
            display: flex;
            flex-direction: row;
            gap: 2rem;
            width: 100%;
        }

        #helpProductListDropdown .dropdown-category-column {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        #helpProductListDropdown .dropdown-category-header {
            color: #6c757d;
            font-size: 0.875rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            padding: 0 0 12px 0;
            margin: 0;
            border-bottom: 2px solid #dee2e6;
        }

        #helpProductListDropdown .dropdown-category-items {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        #helpProductListDropdown .dropdown-category-items a {
            display: flex;
            align-items: center;
            gap: 0.875rem;
            padding: 0.875rem 1rem;
            width: 100%;
            box-sizing: border-box;
            cursor: pointer;
            color: #1a1a1a;
            text-decoration: none;
            transition: all 0.25s ease;
            position: relative;
            border-radius: 8px;
            background: transparent;
            font-size: 0.95rem;
        }

        #helpProductListDropdown .dropdown-category-items a:hover {
            background: #f8f9fa;
            transform: translateX(0);
        }

        .nav-menu .dropdown a {
            display: flex;
            align-items: center;
            gap: 0.875rem;
            padding: 0.875rem 1rem;
            width: 100%;
            box-sizing: border-box;
            cursor: pointer;
            color: #1a1a1a;
            text-decoration: none;
            transition: all 0.25s ease;
            position: relative;
            border-radius: 8px;
            background: transparent;
            font-size: 0.95rem;
        }

        .nav-menu .dropdown a:hover {
            background: #f8f9fa;
            transform: translateX(0);
        }

        /* 菜单项图标 */
        .dropdown-item-icon {
            width: 52px;
            height: 52px;
            min-width: 52px;
            background: #f0f4f8;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            transition: all 0.25s ease;
        }

        .nav-menu .dropdown a:hover .dropdown-item-icon {
            background: #e8f5f3;
            transform: scale(1.05);
        }

        /* 菜单项内容 */
        .dropdown-item-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.375rem;
        }

        .dropdown-item-title {
            font-size: 1rem;
            font-weight: 600;
            color: #1a1a1a;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            line-height: 1.3;
        }

        .dropdown-item-desc {
            font-size: 0.875rem;
            color: #6c757d;
            line-height: 1.4;
        }

        .dropdown-item-price {
            font-size: 0.875rem;
            color: #00B894;
            font-weight: 600;
            margin-top: 0.125rem;
        }

        /* 标签徽章 */
        .dropdown-badge {
            display: inline-block;
            padding: 0.25rem 0.625rem;
            border-radius: 6px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: none;
            letter-spacing: 0;
            line-height: 1;
        }

        .badge-hot {
            background: #FFF4ED;
            color: #F97316;
            border: 1px solid #FED7AA;
        }

        .badge-new {
            background: #DBEAFE;
            color: #2563EB;
            border: 1px solid #BFDBFE;
        }

        .badge-popular {
            background: #FEF3C7;
            color: #D97706;
            border: 1px solid #FDE68A;
        }

        /* Dropdown item text without content wrapper */
        .dropdown-item-text {
            font-size: 1rem;
            font-weight: 500;
            color: #1a1a1a;
        }

        /* Chevron Icon for Dropdown */
        .nav-menu .dropdown-toggle {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-menu .dropdown-toggle::after {
            content: '';
            width: 0;
            height: 0;
            border-left: 4px solid transparent;
            border-right: 4px solid transparent;
            border-top: 5px solid currentColor;
            transition: all 0.25s ease;
            opacity: 0.7;
        }

        .nav-menu li:hover .dropdown-toggle::after,
        .nav-menu li:focus-within .dropdown-toggle::after {
            transform: rotate(180deg);
            opacity: 1;
        }

        .nav-buttons {
            display: flex;
            gap: 1rem;
            align-items: center;
        }

        /* Nav Buttons */
        .nav-buttons {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        
        /* Notification Bell */
        .notification-bell {
            position: relative;
        }
        
        .notification-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(0, 0, 0, 0.05);
            color: var(--text-primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .notification-icon:hover {
            background-color: rgba(0, 0, 0, 0.1);
            color: var(--primary-color);
        }
        
        .bell-icon {
            font-size: 1.2rem;
        }
        
        /* User Profile */
        .user-profile {
            position: relative;
        }
        
        .user-dropdown-toggle {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1rem;
            background-color: rgba(0, 0, 0, 0.05);
            border-radius: 8px;
            color: var(--text-primary);
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        
        .user-dropdown-toggle:hover {
            background-color: rgba(0, 0, 0, 0.1);
        }
        
        .user-avatar {
            font-size: 1.5rem;
        }
        
        .user-email {
            font-size: 0.9rem;
            font-weight: 500;
        }
        
        .dropdown-arrow {
            font-size: 0.6rem;
            opacity: 0.7;
            transition: transform 0.25s ease;
        }
        
        .user-profile:hover .dropdown-arrow {
            transform: rotate(180deg);
            opacity: 1;
        }
        
        .user-dropdown {
            visibility: hidden;
            opacity: 0;
            position: absolute;
            top: 100%;
            right: 0;
            background: white;
            border-radius: 8px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
            z-index: 999;
            transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0.25s;
            pointer-events: none;
            margin-top: 0.5rem;
            min-width: 180px;
        }
        
        .user-profile:hover .user-dropdown,
        .user-dropdown:hover {
            visibility: visible;
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
            transition-delay: 0s;
        }
        
        .user-dropdown-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1rem;
            width: 100%;
            box-sizing: border-box;
            cursor: pointer;
            color: var(--text-primary);
            text-decoration: none;
            transition: all 0.25s ease;
            position: relative;
            z-index: 1000;
        }
        
        .user-dropdown-item:hover {
            background-color: #f8f9fa;
            color: var(--primary-color);
            opacity: 1;
        }
        
        /* Ensure dropdown is always on top */
        .user-dropdown {
            z-index: 1000;
        }
        
        .user-dropdown-item:first-child {
            border-radius: 8px 8px 0 0;
        }
        
        .user-dropdown-item:last-child {
            border-radius: 0 0 8px 8px;
        }
        
        /* Language Switcher */
        .lang-switcher {
            position: relative;
            margin-right: 0;
        }

        /* 添加悬停区域，防止语言菜单消失 */
        .lang-switcher::before {
            content: '';
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            height: 15px;
            background: transparent;
            z-index: 998;
        }

        .lang-dropdown-toggle {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 0.8rem;
            background: rgba(0, 0, 0, 0.04);
            border: 1px solid rgba(0, 0, 0, 0.08);
            color: #1e293b;
            text-decoration: none;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
            min-width: 70px;
            justify-content: center;
        }

        .lang-flag {
            font-size: 1.2rem;
            display: inline-block;
            line-height: 1;
        }

        .navbar.scrolled .lang-dropdown-toggle {
            color: var(--text-primary);
            background: rgba(0, 0, 0, 0.02);
            border-color: rgba(0, 0, 0, 0.1);
        }

        .lang-dropdown-toggle:hover {
            background: var(--gradient-1);
            color: white;
            border-color: transparent;
        }

        .lang-dropdown-toggle::after {
            content: '▼';
            font-size: 0.6rem;
            opacity: 0.7;
            transition: transform 0.25s ease;
            margin-left: 4px;
        }

        .lang-switcher:hover .lang-dropdown-toggle::after {
            transform: rotate(180deg);
            opacity: 1;
        }

        .lang-dropdown {
            visibility: hidden;
            opacity: 0;
            position: absolute;
            top: calc(100% + 10px);
            right: 0;
            background: white;
            min-width: 160px;
            border-radius: 8px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
            z-index: 999;
            transform: translateY(10px);
            transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0.25s;
            pointer-events: none;
            overflow: hidden;
        }

        .lang-switcher:hover .lang-dropdown,
        .lang-dropdown:hover {
            visibility: visible;
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
            transition-delay: 0s;
        }

        .lang-dropdown a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1rem;
            color: #1a1a1a;
            text-decoration: none;
            transition: all 0.2s ease;
            font-size: 0.9rem;
            font-weight: 500;
            border-bottom: 1px solid #f0f0f0;
        }

        .lang-dropdown a:last-child {
            border-bottom: none;
        }

        .lang-dropdown a:hover {
            background: #f8f9fa;
            color: #00B894;
            padding-left: 1.25rem;
        }

        .lang-dropdown a.active {
            background: linear-gradient(90deg, rgba(0, 184, 148, 0.1), transparent);
            color: #00B894;
            position: relative;
        }

        .lang-dropdown a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 3px;
            background: linear-gradient(135deg, #00B894, #00CEC9);
        }

        .lang-dropdown a:first-child {
            border-radius: 8px 8px 0 0;
        }

        .lang-dropdown a:last-child {
            border-radius: 0 0 8px 8px;
        }

        /* Main Layout */
        .main-layout {
            display: flex;
            min-height: calc(100vh - 64px);
            padding-top: 95px;
        }

        /* Sidebar */
        .sidebar {
            width: 250px;
            background-color: var(--bg-sidebar);
            color: var(--text-primary);
            padding: 2rem 0;
        }

        .sidebar-nav {
            list-style: none;
        }

        .sidebar-item {
            margin-bottom: 0.25rem;
        }

        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1.5rem;
            color: rgba(24, 22, 22, 0.8);
            text-decoration: none;
            transition: all 0.3s ease;
            font-weight: 500;
        }

        .sidebar-link:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--text-primary);
        }

        .sidebar-link.active {
            background-color: var(--primary-color);
            color: var(--text-primary);
        }
        .sidebar-sublink.active {
            background-color: var(--primary-color);
            color: var(--text-primary);
        }

        /* Sidebar Submenu Styles */
        .sidebar-item.has-submenu .sidebar-link {
            position: relative;
            justify-content: space-between;
        }

        .submenu-arrow {
            font-size: 0.75rem;
            transition: transform 0.3s ease;
        }

        .sidebar-item.has-submenu.active .submenu-arrow {
            transform: rotate(180deg);
        }

        .sidebar-submenu {
            list-style: none;
            padding-left: 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .sidebar-submenu.show,
.sidebar-item.has-submenu.active > .sidebar-submenu {
    max-height: 1000px; /* 足够大的高度以容纳所有子项 */
}

        .sidebar-subitem {
            margin-bottom: 0.125rem;
        }

        .sidebar-sublink {
            display: block;
            padding: 0.5rem 1.5rem;
            color: rgba(32, 29, 29, 0.7);
            text-decoration: none;
            transition: all 0.3s ease;
            font-size: 0.9rem;
        }

        .sidebar-sublink:hover {
            background-color: rgba(142, 228, 228, 0.1);
            color: var(--text-primary);
        }

        /* Help Layout */
        .help-layout {
            margin-top: 10px;
            display: flex;
            min-height: calc(100vh - 65px);
            max-width: 1400px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
        }

        /* Sidebar */
        .help-sidebar {
            width: 280px;
            background: white;
            border: 1px solid #e5e7eb;
            border-radius: 12px;
            position: sticky;
            top: 105px;
            height: calc(100vh - 85px);
            overflow-y: auto;
            padding: 0;
            flex-shrink: 0;
        }

        .help-sidebar::-webkit-scrollbar {
            width: 6px;
        }

        .help-sidebar::-webkit-scrollbar-track {
            background: transparent;
        }

        .help-sidebar::-webkit-scrollbar-thumb {
            background: #d1d5db;
            border-radius: 3px;
        }

        .help-sidebar::-webkit-scrollbar-thumb:hover {
            background: #9ca3af;
        }

        /* Sidebar Search */
        .sidebar-search {
            padding: 15px 20px;
            border-bottom: 1px solid #e5e7eb;
            margin-bottom: 10px;
        }

        .sidebar-search input {
            width: 100%;
            padding: 10px 15px;
            border: 1px solid #e5e7eb;
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s;
        }

        .sidebar-search input:focus {
            border-color: #3b82f6;
        }

        /* Sidebar Menu */
        .sidebar-menu {
            list-style: none;
        }

        .sidebar-section {
            margin-bottom: 8px;
        }

        .sidebar-section-title {
            padding: 12px 20px;
            font-size: 13px;
            font-weight: 800;
            color: #000;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .sidebar-item {
            position: relative;
        }

        .sidebar-item > a {
            display: block;
            padding: 10px 20px;
            color: #374151;
            text-decoration: none;
            font-size: 14px;
            transition: all 0.2s;
            position: relative;
        }

        .sidebar-item > a:hover {
            background: #f9fafb;
            color: #3b82f6;
        }

        .sidebar-item.active > a {
            background: #eff6ff;
            color: #3b82f6;
            font-weight: 600;
        }

        .sidebar-item.active > a::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: #3b82f6;
        }

        /* Submenu */
        .sidebar-submenu {
            list-style: none;
            max-height: 0;
            overflow: hidden;
            background: #f9fafb;
            transition: max-height 0.3s ease;
        }

        .sidebar-item.has-submenu.active > .sidebar-submenu {
            max-height: 5000px;
        }

        /* 嵌套子菜单样式 */
        .sidebar-submenu .sidebar-item.has-submenu > a {
            padding: 8px 20px 8px 45px;
        }

        .sidebar-submenu .sidebar-item.has-submenu.active > .sidebar-submenu {
            max-height: 3000px;
        }

        .sidebar-submenu .sidebar-submenu li a {
            padding: 8px 20px 8px 65px;
        }

        .sidebar-submenu li a {
            display: block;
            padding: 8px 20px 8px 45px;
            color: #6b7280;
            text-decoration: none;
            font-size: 13px;
            transition: all 0.2s;
        }

        .sidebar-submenu li a:hover {
            color: #3b82f6;
            background: #f3f4f6;
        }

        .sidebar-submenu li.active a {
            color: #3b82f6;
            font-weight: 500;
            background: #eff6ff;
        }

        /* Third-level menu active state */
        .sidebar-submenu .sidebar-submenu li.active a {
            color: #3b82f6;
            font-weight: 500;
            background: #dbeafe;
        }

        .submenu-arrow {
            float: right;
            transition: transform 0.3s ease;
            display: inline-block;
        }

        .sidebar-item.has-submenu.active .submenu-arrow {
            transform: rotate(90deg);
        }

        /* Main Content */
        .help-main {
            flex: 1;
            padding: 90px 60px;
            display: flex;
            justify-content: center;
            align-items: flex-start;
        }

        .help-content {
            background: white;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
            min-height: 500px;
            width: 100%;
            max-width: 900px;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 30px;
            font-size: 14px;
            color: #6b7280;
        }

        .breadcrumb a {
            color: #3b82f6;
            text-decoration: none;
        }

        .breadcrumb a:hover {
            text-decoration: underline;
        }

        .breadcrumb-separator {
            color: #d1d5db;
        }

        /* Page Header */
        .page-header {
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 1px solid #e5e7eb;
        }

        .page-title {
            font-size: 36px;
            font-weight: 700;
            color: #111827;
            margin-bottom: 12px;
        }

        .page-description {
            font-size: 16px;
            color: #6b7280;
            line-height: 1.6;
        }

        /* Helpful Section */
        .helpful-section {
            margin-top: 60px;
            padding-top: 30px;
            border-top: 1px solid #e5e7eb;
            text-align: center;
        }

        .helpful-title {
            font-size: 16px;
            color: #374151;
            margin-bottom: 15px;
        }

        .helpful-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
        }

        .helpful-btn {
            padding: 10px 24px;
            border: 1px solid #e5e7eb;
            background: white;
            border-radius: 8px;
            cursor: pointer;
            font-size: 14px;
            transition: all 0.2s;
            color: #374151;
        }

        .helpful-btn:hover {
            border-color: #3b82f6;
            color: #3b82f6;
            background: #eff6ff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .help-layout {
                max-width: 100%;
            }

            .help-sidebar {
                position: fixed;
                left: 0;
                top: 105px;
                transform: translateX(-100%);
                transition: transform 0.3s;
                z-index: 900;
                box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
            }

            .help-sidebar.show {
                transform: translateX(0);
            }

            .help-main {
                padding: 30px 20px;
            }
        }

        /* Mobile Menu Toggle */
        .mobile-menu-toggle {
            display: none;
            position: fixed;
            bottom: 20px;
            left: 20px;
            width: 50px;
            height: 50px;
            background: #3b82f6;
            color: white;
            border: none;
            border-radius: 50%;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            cursor: pointer;
            z-index: 999;
        }

        @media (max-width: 1024px) {
            .mobile-menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }