*, ::before, ::after{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:rgb(59 130 246 / 0.5);--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:rgb(59 130 246 / 0.5);--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }/* ! tailwindcss v3.4.17 | MIT License | https://tailwindcss.com */*,::after,::before{box-sizing:border-box;border-width:0;border-style:solid;border-color:#e5e7eb}::after,::before{--tw-content:''}:host,html{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;tab-size:4;font-family:Inter, system-ui, sans-serif;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,pre,samp{font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dd,dl,figure,h1,h2,h3,h4,h5,h6,hr,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}menu,ol,ul{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}[role=button],button{cursor:pointer}:disabled{cursor:default}audio,canvas,embed,iframe,img,object,svg,video{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}.container{width:100%}@media (min-width: 640px){.container{max-width:640px}}@media (min-width: 768px){.container{max-width:768px}}@media (min-width: 1024px){.container{max-width:1024px}}@media (min-width: 1280px){.container{max-width:1280px}}@media (min-width: 1536px){.container{max-width:1536px}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0, 0, 0, 0);white-space:nowrap;border-width:0}.absolute{position:absolute}.relative{position:relative}.inset-0{inset:0px}.left-4{left:1rem}.top-4{top:1rem}.z-\[80\]{z-index:80}.col-span-3{grid-column:span 3 / span 3}.col-span-4{grid-column:span 4 / span 4}.col-span-5{grid-column:span 5 / span 5}.col-span-6{grid-column:span 6 / span 6}.mx-auto{margin-left:auto;margin-right:auto}.mb-2{margin-bottom:0.5rem}.mb-3{margin-bottom:0.75rem}.mb-4{margin-bottom:1rem}.mb-6{margin-bottom:1.5rem}.mt-1{margin-top:0.25rem}.mt-4{margin-top:1rem}.block{display:block}.flex{display:flex}.grid{display:grid}.hidden{display:none}.h-10{height:2.5rem}.h-20{height:5rem}.h-32{height:8rem}.h-full{height:100%}.w-10{width:2.5rem}.w-5{width:1.25rem}.w-full{width:100%}.shrink-0{flex-shrink:0}.cursor-pointer{cursor:pointer}.grid-cols-12{grid-template-columns:repeat(12, minmax(0, 1fr))}.grid-cols-2{grid-template-columns:repeat(2, minmax(0, 1fr))}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:0.5rem}.gap-3{gap:0.75rem}.gap-4{gap:1rem}.gap-6{gap:1.5rem}.space-y-1 > :not([hidden]) ~ :not([hidden]){--tw-space-y-reverse:0;margin-top:calc(0.25rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(0.25rem * var(--tw-space-y-reverse))}.space-y-2 > :not([hidden]) ~ :not([hidden]){--tw-space-y-reverse:0;margin-top:calc(0.5rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(0.5rem * var(--tw-space-y-reverse))}.overflow-hidden{overflow:hidden}.whitespace-nowrap{white-space:nowrap}.rounded{border-radius:0.25rem}.rounded-full{border-radius:9999px}.rounded-lg{border-radius:0.5rem}.rounded-md{border-radius:0.375rem}.rounded-xl{border-radius:0.75rem}.border{border-width:1px}.border-b{border-bottom-width:1px}.border-b-2{border-bottom-width:2px}.border-r{border-right-width:1px}.border-blue-100{--tw-border-opacity:1;border-color:rgb(219 234 254 / var(--tw-border-opacity, 1))}.border-gray-100{--tw-border-opacity:1;border-color:rgb(243 244 246 / var(--tw-border-opacity, 1))}.border-gray-200{--tw-border-opacity:1;border-color:rgb(229 231 235 / var(--tw-border-opacity, 1))}.border-gray-50{--tw-border-opacity:1;border-color:rgb(249 250 251 / var(--tw-border-opacity, 1))}.border-primary{--tw-border-opacity:1;border-color:rgb(0 102 204 / var(--tw-border-opacity, 1))}.bg-\[\#f4f7ff\]{--tw-bg-opacity:1;background-color:rgb(244 247 255 / var(--tw-bg-opacity, 1))}.bg-accent{--tw-bg-opacity:1;background-color:rgb(255 102 0 / var(--tw-bg-opacity, 1))}.bg-blue-100{--tw-bg-opacity:1;background-color:rgb(219 234 254 / var(--tw-bg-opacity, 1))}.bg-gray-100{--tw-bg-opacity:1;background-color:rgb(243 244 246 / var(--tw-bg-opacity, 1))}.bg-green-100{--tw-bg-opacity:1;background-color:rgb(220 252 231 / var(--tw-bg-opacity, 1))}.bg-orange-100{--tw-bg-opacity:1;background-color:rgb(255 237 213 / var(--tw-bg-opacity, 1))}.bg-primary{--tw-bg-opacity:1;background-color:rgb(0 102 204 / var(--tw-bg-opacity, 1))}.bg-purple-100{--tw-bg-opacity:1;background-color:rgb(243 232 255 / var(--tw-bg-opacity, 1))}.bg-white{--tw-bg-opacity:1;background-color:rgb(255 255 255 / var(--tw-bg-opacity, 1))}.bg-gradient-to-br{background-image:linear-gradient(to bottom right, var(--tw-gradient-stops))}.bg-gradient-to-t{background-image:linear-gradient(to top, var(--tw-gradient-stops))}.from-black\/50{--tw-gradient-from:rgb(0 0 0 / 0.5) var(--tw-gradient-from-position);--tw-gradient-to:rgb(0 0 0 / 0) var(--tw-gradient-to-position);--tw-gradient-stops:var(--tw-gradient-from), var(--tw-gradient-to)}.from-gray-900{--tw-gradient-from:#111827 var(--tw-gradient-from-position);--tw-gradient-to:rgb(17 24 39 / 0) var(--tw-gradient-to-position);--tw-gradient-stops:var(--tw-gradient-from), var(--tw-gradient-to)}.to-gray-800{--tw-gradient-to:#1f2937 var(--tw-gradient-to-position)}.to-transparent{--tw-gradient-to:transparent var(--tw-gradient-to-position)}.object-contain{object-fit:contain}.object-cover{object-fit:cover}.p-2{padding:0.5rem}.p-2\.5{padding:0.625rem}.p-4{padding:1rem}.p-6{padding:1.5rem}.px-3{padding-left:0.75rem;padding-right:0.75rem}.px-4{padding-left:1rem;padding-right:1rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.py-2{padding-top:0.5rem;padding-bottom:0.5rem}.py-2\.5{padding-top:0.625rem;padding-bottom:0.625rem}.py-3{padding-top:0.75rem;padding-bottom:0.75rem}.pb-1{padding-bottom:0.25rem}.pb-2{padding-bottom:0.5rem}.pl-4{padding-left:1rem}.pr-6{padding-right:1.5rem}.pt-20{padding-top:5rem}.pt-4{padding-top:1rem}.text-center{text-align:center}.text-2xl{font-size:1.5rem;line-height:2rem}.text-lg{font-size:1.125rem;line-height:1.75rem}.text-sm{font-size:0.875rem;line-height:1.25rem}.text-xl{font-size:1.25rem;line-height:1.75rem}.text-xs{font-size:0.75rem;line-height:1rem}.font-bold{font-weight:700}.font-medium{font-weight:500}.uppercase{text-transform:uppercase}.leading-relaxed{line-height:1.625}.leading-tight{line-height:1.25}.tracking-wider{letter-spacing:0.05em}.text-accent{--tw-text-opacity:1;color:rgb(255 102 0 / var(--tw-text-opacity, 1))}.text-gray-300{--tw-text-opacity:1;color:rgb(209 213 219 / var(--tw-text-opacity, 1))}.text-gray-400{--tw-text-opacity:1;color:rgb(156 163 175 / var(--tw-text-opacity, 1))}.text-gray-500{--tw-text-opacity:1;color:rgb(107 114 128 / var(--tw-text-opacity, 1))}.text-gray-600{--tw-text-opacity:1;color:rgb(75 85 99 / var(--tw-text-opacity, 1))}.text-gray-700{--tw-text-opacity:1;color:rgb(55 65 81 / var(--tw-text-opacity, 1))}.text-gray-800{--tw-text-opacity:1;color:rgb(31 41 55 / var(--tw-text-opacity, 1))}.text-green-500{--tw-text-opacity:1;color:rgb(34 197 94 / var(--tw-text-opacity, 1))}.text-green-600{--tw-text-opacity:1;color:rgb(22 163 74 / var(--tw-text-opacity, 1))}.text-primary{--tw-text-opacity:1;color:rgb(0 102 204 / var(--tw-text-opacity, 1))}.text-purple-600{--tw-text-opacity:1;color:rgb(147 51 234 / var(--tw-text-opacity, 1))}.text-white{--tw-text-opacity:1;color:rgb(255 255 255 / var(--tw-text-opacity, 1))}.opacity-0{opacity:0}.opacity-70{opacity:0.7}.shadow-lg{--tw-shadow:0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);--tw-shadow-colored:0 10px 15px -3px var(--tw-shadow-color), 0 4px 6px -4px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow)}.shadow-md{--tw-shadow:0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);--tw-shadow-colored:0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow)}.shadow-blue-200{--tw-shadow-color:#bfdbfe;--tw-shadow:var(--tw-shadow-colored)}.transition-all{transition-property:all;transition-timing-function:cubic-bezier(0.4, 0, 0.2, 1);transition-duration:150ms}.transition-colors{transition-property:color, background-color, border-color, fill, stroke, -webkit-text-decoration-color;transition-property:color, background-color, border-color, text-decoration-color, fill, stroke;transition-property:color, background-color, border-color, text-decoration-color, fill, stroke, -webkit-text-decoration-color;transition-timing-function:cubic-bezier(0.4, 0, 0.2, 1);transition-duration:150ms}.transition-opacity{transition-property:opacity;transition-timing-function:cubic-bezier(0.4, 0, 0.2, 1);transition-duration:150ms}.transition-shadow{transition-property:box-shadow;transition-timing-function:cubic-bezier(0.4, 0, 0.2, 1);transition-duration:150ms}.transition-transform{transition-property:transform;transition-timing-function:cubic-bezier(0.4, 0, 0.2, 1);transition-duration:150ms}.duration-500{transition-duration:500ms}.hover\:-translate-y-0\.5:hover{--tw-translate-y:-0.125rem;transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.hover\:bg-blue-50:hover{--tw-bg-opacity:1;background-color:rgb(239 246 255 / var(--tw-bg-opacity, 1))}.hover\:bg-blue-700:hover{--tw-bg-opacity:1;background-color:rgb(29 78 216 / var(--tw-bg-opacity, 1))}.hover\:bg-orange-600:hover{--tw-bg-opacity:1;background-color:rgb(234 88 12 / var(--tw-bg-opacity, 1))}.hover\:text-primary:hover{--tw-text-opacity:1;color:rgb(0 102 204 / var(--tw-text-opacity, 1))}.hover\:shadow-md:hover{--tw-shadow:0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);--tw-shadow-colored:0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow)}.focus\:not-sr-only:focus{position:static;width:auto;height:auto;padding:0;margin:0;overflow:visible;clip:auto;white-space:normal}.group\/card:hover .group-hover\/card\:scale-105{--tw-scale-x:1.05;--tw-scale-y:1.05;transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.group:hover .group-hover\:text-primary{--tw-text-opacity:1;color:rgb(0 102 204 / var(--tw-text-opacity, 1))}.group\/card:hover .group-hover\/card\:opacity-100{opacity:1}@media (min-width: 1024px){.lg\:block{display:block}.lg\:flex{display:flex}.lg\:hidden{display:none}.lg\:p-0{padding:0px}.lg\:px-8{padding-left:2rem;padding-right:2rem}}



















        @layer utilities {
            .content-auto {
                content-visibility: auto;
            }
            .text-shadow {
                text-shadow: 0 2px 4px rgba(0,0,0,0.8), 0 4px 8px rgba(0,0,0,0.6);
            }
            .mobile-menu {
                transition: all 0.3s ease;
            }
            .hover-scale {
                transition: transform 0.3s ease;
            }
            .hover-scale:hover {
                transform: translateY(-5px);
            }
            .card-hover {
                transition: all 0.3s ease;
            }
            .card-hover:hover {
                transform: translateY(-10px);
                box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
            }
            .btn-hover {
                transition: all 0.3s ease;
            }
            .btn-hover:hover {
                transform: translateY(-2px);
                box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            }
            .nav-link {
                position: relative;
            }
            .nav-link::after {
                content: '';
                position: absolute;
                width: 0;
                height: 2px;
                bottom: -2px;
                left: 0;
                background-color: #0066CC;
                transition: width 0.3s ease;
            }
            .nav-link:hover::after {
                width: 100%;
            }
            /* 移动端滚动条优化 */
            .mobile-scrollbar {
                scrollbar-width: thin;
                scrollbar-color: #0066CC #f1f1f1;
            }
            .mobile-scrollbar::-webkit-scrollbar {
                width: 4px;
            }
            .mobile-scrollbar::-webkit-scrollbar-track {
                background: #f1f1f1;
            }
            .mobile-scrollbar::-webkit-scrollbar-thumb {
                background: #0066CC;
                border-radius: 2px;
            }
        }    

















    /* 基础重置 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: 'Inter', system-ui, sans-serif;
            overflow-x: hidden;
        }
        
        /* ======= 导航栏样式 ======= */
        header#mainHeader { 
            height: auto;
            transition: all 0.3s ease;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: white;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        /* 顶部信息栏 - 仅桌面显示 */
        .top-bar {
            background-color: #020617;
            font-size: 0.75rem;
        }

        /* 导航容器 */
        .nav-container {
            height: 70px; /* 移动端降低导航高度 */
        }

        /* 桌面导航 */
        .primary-nav { 
            display:flex; 
            gap:2rem; 
            align-items:center; 
            justify-content: center;
            flex: 1;
        }

        /* 菜单触发器 */
        .menu-trigger {
            display:flex;
            align-items:center;
            gap:.375rem;
            padding:0 .5rem;
            height: 70px; /* 适配移动端导航高度 */
            cursor:pointer;
            user-select:none;
            color: #333;
            font-weight:600;
            font-size: 1rem;
            transition: color 0.2s, background-color 0.2s, border-bottom-color 0.2s;
            border-radius: 6px;
            border-bottom: 2px solid transparent;
        }
        .menu-trigger:hover {
            color: #0066CC;
            background-color: rgba(0,102,204,0.05);
            border-bottom-color: #0066CC;
        }
        .menu-trigger:focus { outline: none; }

        /* 箭头旋转动画 */
        .menu-trigger .fa-angle-down { 
            transition: transform .25s ease; 
            transform-origin: center; 
        }
        .menu-item:hover > .menu-trigger .fa-angle-down { 
            transform: rotate(180deg); 
        }

        /* 大屏下拉菜单 */
        .mega-panel {
            position: fixed;
            left: 50%;
            top: 104px; /* 适配降低后的导航高度 */
            transform: translateX(-50%) translateY(10px);
            width: min(1200px, 90vw);
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 30px 60px rgba(0,0,0,0.15);
            border-top: 4px solid #0066CC;
            padding: 1.5rem;
            opacity:0;
            visibility:hidden;
            pointer-events:none;
            transition: all .25s ease;
            z-index:60;
        }

        .menu-item:hover > .mega-panel {
            opacity:1;
            visibility:visible;
            pointer-events:auto;
            transform: translateX(-50%) translateY(0);
        }

        /* 桥接元素 */
        .mega-bridge {
            position:fixed;
            left:0;
            right:0;
            top: 104px;
            height:20px;
            pointer-events:auto;
            z-index:59;
            background:transparent;
            opacity:0;
            visibility:hidden;
        }
        .menu-item:hover > .mega-bridge {
            opacity:1;
            visibility:visible;
        }

        /* 子菜单面板 */
        .sub-menu-item { position:relative; }
        .sub-menu-panel {
            position:absolute;
            left:100%;
            top:-10px;
            min-width:220px;
            background:#fff;
            border-radius:8px;
            border:1px solid #f3f4f6;
            box-shadow:0 10px 30px rgba(0,0,0,0.1);
            padding:.5rem;
            transform:translateX(-10px);
            opacity:0; 
            visibility:hidden;
            transition: all .2s ease;
            z-index:70;
        }
        .sub-menu-item:hover > .sub-menu-panel,
        .sub-menu-item:focus-within > .sub-menu-panel {
            opacity:1; 
            visibility:visible; 
            transform:translateX(0);
        }

        /* 简单导航链接 */
        .nav-simple-link {
            color: #333;
            transition: all 0.2s;
            height: 70px; /* 适配移动端导航高度 */
            display: flex;
            align-items: center;
            padding: 0 0.5rem;
            font-size: 1rem;
            font-weight: 600;
            border-bottom: 2px solid transparent;
        }
        .nav-simple-link:hover {
            color: #0066CC;
            background-color: rgba(0,102,204,0.05);
            border-bottom-color: #0066CC;
        }

        /* ======= 移动端样式 (核心优化) ======= */
        @media (max-width: 1024px) {
            /* 基础布局优化 */
            body {
                padding-top: 70px; /* 为固定导航留出空间 */
            }
            
            header#mainHeader { 
                position:fixed; 
                height: auto; 
                z-index: 9999; /* 确保导航在最上层 */
            }
            
            .top-bar { 
                display: none; 
            }
            
            /* 移动端导航容器 */
            .nav-container {
                height: 70px;
                padding: 0 1rem;
            }
            
            /* Logo优化 */
            .logo-img {
                width: 40px !important;
                height: 40px !important;
            }
            
            /* 移动端导航菜单 */
            nav.primary-nav {
                display:none !important;
            }
            
            /* 移动端专用导航 */
            #mobileNav {
                display: none;
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                bottom: 0;
                background: white;
                z-index: 9998;
                overflow-y: auto;
                padding-bottom: 2rem;
                box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            }
            
            #mobileNav.open {
                display: block;
            }
            
            /* 移动端菜单触发器 */
            .mobile-menu-trigger {
                width: 100%;
                display: flex;
                justify-content: space-between;
                align-items: center;
                padding: 1rem;
                border-bottom: 1px solid #f3f4f6;
                color: #333;
                font-weight: 600;
                background: transparent;
                border: none;
                text-align: left;
                font-size: 1rem;
            }
            
            /* 移动端子菜单 */
            .mobile-submenu {
                display: none;
                padding-left: 1rem;
            }
            
            .mobile-submenu.show {
                display: block;
            }
            
            /* 移动端子子菜单 */
            .mobile-subsubmenu {
                display: none;
                padding-left: 1rem;
            }
            
            .mobile-subsubmenu.show {
                display: block;
            }
            
            /* 移动端菜单项 */
            .mobile-menu-item a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid #f3f4f6;
                color: #333;
                text-decoration: none;
            }
            
            .mobile-menu-item a:hover {
                background-color: #f9fafb;
                color: #0066CC;
            }
            
            /* 移动端CTA按钮 */
            .mobile-cta-btn {
                margin: 1rem;
                padding: 1rem;
                background-color: #FF6600;
                color: white;
                border-radius: 8px;
                text-align: center;
                font-weight: 600;
                text-decoration: none;
                display: block;
            }
            
            /* 移动端菜单触发器图标 */
            .mobile-toggle-icon {
                transition: all 0.3s ease;
            }
            
            .mobile-toggle-icon.active {
                transform: rotate(90deg);
            }
            
            /* 移动端视频优化 */
            .mobile-video {
                width: 100%;
                height: auto;
                max-height: 50vh;
                object-fit: cover;
            }
            
            /* 触摸反馈优化 */
            .touch-feedback {
                -webkit-tap-highlight-color: rgba(0,102,204,0.1);
                tap-highlight-color: rgba(0,102,204,0.1);
            }
            
            /* 适配小屏手机 */
            @media (max-width: 480px) {
                .nav-container {
                    height: 60px;
                }
                
                body {
                    padding-top: 60px;
                }
                
                #mobileNav {
                    top: 60px;
                }
                
                .logo-img {
                    width: 35px !important;
                    height: 35px !important;
                }
            }
        }

        /* 桌面端样式 */
        @media (min-width: 1025px) {
            nav.primary-nav {
                display: flex !important;
            }
            
            #mobileNav,
            #mobileToggle {
                display: none !important;
            }
        }

        /* 焦点样式 - 无障碍优化 */
        .menu-trigger:focus-visible, 
        .nav-simple-link:focus-visible { 
            outline: 2px solid #0099FF; 
            outline-offset: -2px; 
            border-radius: 4px; 
        }
        
        /* 视频轮播指示器 */
        .indicator {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: white;
            margin: 0 5px;
            cursor: pointer;
            transition: opacity 0.3s ease;
        }