:root {
            --primary-blue: #3A6FF7;
            --primary-blue-dark: #2563EB;
            --secondary-teal: #10B981;
            --accent-purple: #8B5CF6;
            --accent-pink: #EC4899;
            --bg-body: #0A0E1A;
            --bg-surface: #FFFFFF;
            --bg-dark: #0F172A;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --text-light: #F8FAFC;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            overflow-x: hidden;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Poppins', sans-serif;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.02em;
        }

        .particles {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
        }

        .particle {
            position: absolute;
            width: 2px;
            height: 2px;
            background: rgba(58, 111, 247, 0.5);
            border-radius: 50%;
            animation: float 20s infinite;
        }

        @keyframes float {
            0%, 100% { transform: translate(0, 0); opacity: 0; }
            10% { opacity: 1; }
            90% { opacity: 1; }
            100% { transform: translate(100px, -800px); opacity: 0; }
        }
        
        .reveal-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
        }
        
        .reveal-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .navbar-main {
            background: rgba(10, 14, 26, 0.7);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding: 1rem 0;
            transition: all 0.3s ease;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }
        
        .navbar-brand {
            font-size: 1.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #fff 0%, #60a5fa 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.03em;
        }
        
        .nav-link {
            font-weight: 500;
            color: rgba(255,255,255,0.8) !important;
            margin: 0 0.8rem;
            font-size: 0.95rem;
            position: relative;
            transition: all 0.3s ease;
        }
        
        .nav-link:hover, .nav-link.active {
            color: #60a5fa !important;
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 50%;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, #3A6FF7, #10B981);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }
        
        .nav-link:hover::after, .nav-link.active::after {
            width: 100%;
        }

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 0 100px;
    position: relative;
    /* 提亮中心区域的渐变 */
    background: radial-gradient(circle at center, #1a2a5a 0%, #0a0e1a 100%);
    overflow: hidden;
    color: white;
}

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(58, 111, 247, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            animation: pulse 8s ease-in-out infinite;
        }
        
        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            animation: pulse 10s ease-in-out infinite reverse;
        }

#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.8; /* 提高不透明度 */
    mix-blend-mode: screen; /* 关键：屏幕滤色模式，让颜色叠加变亮 */
}

        /* 【修改】调整 grid-bg 的层级，确保它在 canvas 之上 */
        .grid-bg {
            /* 原有样式保持不变... */
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image:
                linear-gradient(rgba(58, 111, 247, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(58, 111, 247, 0.03) 1px, transparent 1px);
            background-size: 50px 50px;
            animation: gridMove 20s linear infinite;
            z-index: 2; /* 【新增】确保网格在 canvas 之上 */
        }

        /* 【原有代码确认】确保容器在最上层 (代码中已存在，无需修改，确认即可) */
        .hero .container {
            position: relative;
            z-index: 2;
        }        

        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 0.8; }
            50% { transform: scale(1.2); opacity: 1; }
        }

        .grid-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(rgba(58, 111, 247, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(58, 111, 247, 0.03) 1px, transparent 1px);
            background-size: 50px 50px;
            animation: gridMove 20s linear infinite;
        }

        @keyframes gridMove {
            0% { transform: translateY(0); }
            100% { transform: translateY(50px); }
        }
        
        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-title {
            font-family: 'Playfair Display', serif;
            font-size: clamp(2.5rem, 5vw, 5.5rem);
            font-weight: 700;
            background: linear-gradient(135deg, #ffffff 20%, #60a5fa 50%, #34d399 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1.5rem;
            text-shadow: 0 0 40px rgba(58, 111, 247, 0.3);
            animation: titleGlow 3s ease-in-out infinite;
        }

        @keyframes titleGlow {
            0%, 100% { filter: brightness(1); }
            50% { filter: brightness(1.2); }
        }
        
        .hero-subtitle {
            font-size: 1.3rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 300;
            margin-bottom: 4rem;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }

        .stats-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem 3rem;
            justify-content: center;
            background: rgba(255,255,255,0.05);
            padding: 3rem 2rem;
            border-radius: 24px;
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255,255,255,0.1);
            box-shadow: 0 8px 32px rgba(0,0,0,0.3), inset 0 0 40px rgba(58, 111, 247, 0.05);
            position: relative;
            overflow: hidden;
        }

        .stats-bar::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
            animation: shimmer 3s infinite;
        }

        @keyframes shimmer {
            0% { left: -100%; }
            100% { left: 100%; }
        }
        
        .stat-item {
            text-align: center;
            position: relative;
        }
        
        .stat-value {
            font-family: 'Poppins', sans-serif;
            font-size: 3rem;
            font-weight: 800;
            background: linear-gradient(135deg, #60a5fa, #34d399);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            margin-bottom: 0.5rem;
            filter: drop-shadow(0 0 20px rgba(58, 111, 247, 0.5));
        }
        
        .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            text-transform: uppercase;
            letter-spacing: 2px;
            font-weight: 600;
        }
        
        .btn-primary-blue {
            background: linear-gradient(135deg, #3A6FF7, #2563EB);
            border: none;
            color: white;
            font-weight: 600;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            transition: all 0.4s ease;
            box-shadow: 0 4px 20px rgba(58, 111, 247, 0.4), 0 0 40px rgba(58, 111, 247, 0.2);
            position: relative;
            overflow: hidden;
        }

        .btn-primary-blue::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
            transition: left 0.5s;
        }

        .btn-primary-blue:hover::before {
            left: 100%;
        }
        
        .btn-primary-blue:hover {
            background: linear-gradient(135deg, #2563EB, #1e40af);
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 8px 30px rgba(58, 111, 247, 0.6), 0 0 60px rgba(58, 111, 247, 0.4);
            color: white;
        }
        
        .btn-outline-primary {
            color: white;
            border: 2px solid rgba(58, 111, 247, 0.5);
            background: rgba(58, 111, 247, 0.1);
            backdrop-filter: blur(10px);
            font-weight: 600;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            transition: all 0.3s ease;
        }
        
        .btn-outline-primary:hover {
            background: linear-gradient(135deg, #3A6FF7, #2563EB);
            color: white;
            border-color: transparent;
            box-shadow: 0 8px 30px rgba(58, 111, 247, 0.4);
            transform: translateY(-3px);
        }

        #technology {
            padding: 120px 0;
            background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
            position: relative;
        }

        #technology::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(58, 111, 247, 0.3), transparent);
        }
        
        .section-title {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #1e293b, #3A6FF7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .section-subtitle {
            color: var(--text-muted);
            font-size: 1.2rem;
            max-width: 700px;
            margin-bottom: 4rem;
            line-height: 1.8;
        }
        
        .feature-box {
            background: white;
            padding: 3rem 2.5rem;
            border-radius: 20px;
            border: 1px solid transparent;
            height: 100%;
            transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
        }
        
        .feature-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(58, 111, 247, 0.05), rgba(16, 185, 129, 0.05));
            opacity: 0;
            transition: opacity 0.5s;
        }
        
        .feature-box::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-blue), var(--secondary-teal));
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        .feature-box:hover {
            transform: translateY(-12px) scale(1.02);
            box-shadow: 0 20px 60px rgba(58, 111, 247, 0.2);
            border-color: rgba(58, 111, 247, 0.2);
        }
        
        .feature-box:hover::before,
        .feature-box:hover::after {
            opacity: 1;
        }

        .icon-box {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, rgba(58, 111, 247, 0.1), rgba(16, 185, 129, 0.1));
            color: var(--primary-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 20px;
            font-size: 2rem;
            margin-bottom: 1.5rem;
            transition: all 0.5s ease;
            position: relative;
            z-index: 1;
        }
        
        .feature-box:hover .icon-box {
            transform: scale(1.15) rotate(8deg);
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-teal));
            color: white;
            box-shadow: 0 10px 30px rgba(58, 111, 247, 0.4);
        }

        #modules {
            background: linear-gradient(180deg, #0a0e1a 0%, #1a1f35 100%);
            padding: 120px 0;
            position: relative;
        }

        #modules .section-title,
        #modules .section-subtitle {
            color: white;
        }

        #modules .section-title {
            background: linear-gradient(135deg, #ffffff, #60a5fa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        #modules .section-subtitle {
            color: rgba(255,255,255,0.6);
        }
        
        .card-wrapper {
            background: rgba(255,255,255,0.05);
            backdrop-filter: blur(20px);
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid rgba(255,255,255,0.1);
            transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            height: 100%;
            box-shadow: 0 8px 32px rgba(0,0,0,0.3);
            position: relative;
        }

        .card-wrapper::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
            transition: left 0.8s;
        }

        .card-wrapper:hover::before {
            left: 100%;
        }

        .card-wrapper:hover {
            transform: translateY(-15px) scale(1.02);
            box-shadow: 0 25px 60px rgba(58, 111, 247, 0.3);
            border-color: rgba(58, 111, 247, 0.5);
        }

        .card-img-holder {
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        
        .card-img-holder::after {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: linear-gradient(to bottom, transparent 40%, rgba(0,0,0,0.6));
        }

        .card-img-holder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 1s ease;
            filter: brightness(0.8);
        }

        .card-wrapper:hover .card-img-holder img {
            transform: scale(1.15) rotate(2deg);
            filter: brightness(1);
        }

        .card-content {
            padding: 2.5rem;
            text-align: left;
            position: relative;
        }
        
        .card-content.rtl {
            direction: rtl;
            text-align: right;
        }

        .lang-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.4;
            color: white;
        }
        
        .lang-desc {
            color: rgba(255,255,255,0.6);
            font-size: 0.95rem;
            margin-bottom: 2rem;
            line-height: 1.7;
        }

        .local-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            background: linear-gradient(135deg, rgba(58, 111, 247, 0.2), rgba(16, 185, 129, 0.2));
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.2);
            color: white;
            padding: 14px 24px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.4s ease;
        }
        
        .local-btn:hover {
            background: linear-gradient(135deg, #3A6FF7, #10B981);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(58, 111, 247, 0.4);
            border-color: transparent;
        }

        .workflow-section {
            padding: 120px 0;
            background: linear-gradient(180deg, #ffffff 0%, #f0f9ff 100%);
        }
        
        .workflow-card {
            background: white;
            border-radius: 24px;
            padding: 3.5rem 2.5rem;
            text-align: center;
            height: 100%;
            border: 2px solid transparent;
            transition: all 0.5s ease;
            position: relative;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
            overflow: hidden;
        }

        .workflow-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at top left, rgba(58, 111, 247, 0.05), transparent 60%);
            opacity: 0;
            transition: opacity 0.5s;
        }
        
        .workflow-card:hover {
            background: white;
            border-color: rgba(58, 111, 247, 0.3);
            box-shadow: 0 20px 60px rgba(58, 111, 247, 0.15);
            transform: translateY(-10px);
        }

        .workflow-card:hover::before {
            opacity: 1;
        }
        
        .workflow-number {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, #3A6FF7, #10B981);
            color: white;
            border: none;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 800;
            margin: 0 auto 2rem;
            transition: all 0.5s ease;
            box-shadow: 0 8px 25px rgba(58, 111, 247, 0.3);
            position: relative;
            z-index: 1;
        }
        
        .workflow-card:hover .workflow-number {
            transform: scale(1.15) rotate(360deg);
            box-shadow: 0 15px 40px rgba(58, 111, 247, 0.5);
        }
        
        .workflow-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
            color: var(--text-main);
        }
        
        .workflow-desc {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.7;
        }

        .cta-section {
            padding: 120px 0;
            background: linear-gradient(135deg, #0a0e1a 0%, #1e293b 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                radial-gradient(circle at 20% 50%, rgba(58, 111, 247, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
        }
        
        .cta-content {
            position: relative;
            z-index: 1;
        }
        
        .cta-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 2rem;
            background: linear-gradient(135deg, #ffffff, #60a5fa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .cta-subtitle {
            color: rgba(255,255,255,0.7);
            font-size: 1.25rem;
            margin-bottom: 3rem;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .footer {
            background: #050810;
            color: white;
            padding: 6rem 0 2rem;
            border-top: 1px solid rgba(58, 111, 247, 0.2);
            position: relative;
        }

        .footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, #3A6FF7, transparent);
        }
        
        .footer-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: white;
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
        }
        
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        
        .footer-links a {
            color: rgba(255,255,255,0.5);
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
        }
        
        .footer-links a:hover {
            color: var(--primary-blue);
            transform: translateX(5px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 3rem;
            color: rgba(255,255,255,0.3);
            font-size: 0.9rem;
            border-top: 1px solid rgba(255,255,255,0.05);
            margin-top: 3rem;
        }

        @media (max-width: 991px) {
            .hero-title { font-size: 3.5rem; }
            .stats-bar { gap: 1.5rem; }
            .section-title { font-size: 2.5rem; }
        }
        
        @media (max-width: 768px) {
            .hero-title { font-size: 2.8rem; }
            .hero { padding-top: 100px; text-align: center; }
            .stats-bar { flex-direction: column; gap: 2rem; padding: 2rem 1.5rem; }
            .stat-item { width: 100%; }
            .cta-title { font-size: 2.5rem; }
            .workflow-card { padding: 2.5rem 1.5rem; }
            .stat-value { font-size: 2.5rem; }
        }