:root {
            --primary-color: #1a3a6d;
            --secondary-color: #2c5aa0;
            --accent-color: #f9a826;
            --light-color: #f0f4f8;
            --dark-color: #333;
            --text-color: #444;
            --text-color-light: #666;
            --white: #ffffff;
            --section-padding: 80px;
            --transition: all 0.4s ease;
        }


        /* 导航样式 */
        .fixed-nav {
            position: fixed;
            top: 50%;
            right: 30px;
            transform: translateY(-50%);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .nav-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(26, 58, 109, 0.3);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .nav-dot.active {
            background-color: var(--primary-color);
            transform: scale(1.3);
        }

        .nav-dot::after {
            content: attr(data-title);
            position: absolute;
            right: 25px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--primary-color);
            color: white;
            padding: 5px 12px;
            border-radius: 4px;
            font-size: 14px;
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-dot:hover::after {
            opacity: 1;
            right: 30px;
        }




        /* 通用部分样式 */
        .service-section {
            min-height: 90vh;
            display: flex;
            align-items: center;
            padding: var(--section-padding) 5%;
            position: relative;
            overflow: hidden;
        }

        .section-container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .content-wrapper {
            flex: 1;
            max-width: 600px;
        }

        .section-title {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 25px;
            position: relative;
            line-height: 1.2;
            text-align: left;
            position: relative;
            padding:10px 0;
        }

        .section-title::before {
            content: '';
            position: absolute;
            width: 70px;
            height: 2px;
            background: var(--primary-color);
            bottom: -20px;
            left: 0;
            border-radius: 2px;
            margin-bottom:10px;
        }
        
        #youth-education .section-title::before{
            
            background: var(--white);
        }
        
        .section-desc {
            font-size: 1.4rem;
            margin-bottom: 10px;
            color: var(--text-color);
            line-height: 1.6;
        }

        .section-desc.light{
            color: var(--text-color-light);
            font-size: 1.2rem;
        }

        .btn {
            display: inline-block;
            background: linear-gradient(to right, var(--primary-color), var(--primary-color));
            color: var(--white);
            padding: 12px 35px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 300;
            transition: all 0.9s ease;
            border: 0px solid var(--primary-color);
            font-size: 1rem;
            cursor: pointer;
            position: relative;
            margin-top:20px;
        }

        .btn:hover {
            background: linear-gradient(to right, #0F62FE, #70BE58);
            color: var(--white);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary-color);
            margin-left: 15px;
        }

        .btn-outline:hover {
            background: var(--primary-color);
            color: var(--white);
        }

        .image-wrapper {
            flex: 1;
            display: flex;
            justify-content: center;
            position: relative;
            perspective: 1000px;
        }

        .service-image {
            width: 85%;
            max-width: 500px;
            border-radius: 15px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
            transform: rotateY(-5deg);
            transition: var(--transition);
            position: relative;
            z-index: 2;
        }

        .image-wrapper:hover .service-image {
            transform: rotateY(0);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
        }

        .image-bg {
            position: absolute;
            width: 100%;
            height: 100%;
            background: var(--primary-color);
            opacity: 0.05;
            border-radius: 20px;
            z-index: 1;
            top: -20px;
            right: 20px;
            transform: rotate(5deg);
        }

        /* 各服务区域特定样式 */
        #hero {
            background: linear-gradient(135deg, rgba(26, 58, 109, 0.05) 0%, rgba(255, 255, 255, 1) 100%);
            text-align: center;
            justify-content: center;
        }

        #hero .section-container {
            flex-direction: column;
            max-width: 900px;
        }

        #hero .section-title {
            font-size: 3.5rem;
            margin-bottom: 20px;
        }

        #hero .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }

        #hero .section-desc {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 40px;
        }

        #caac-training {
            background: rgba(26, 58, 109, 0.09);
        }

        #drone-services {
            background: white 50%;
        }

        #drone-services .content-wrapper {
            order: 2;
        }

        #drone-services .image-wrapper {
            order: 1;
        }

        #youth-education {
            background: linear-gradient(to right, white 50%, rgba(26, 58, 109, 0.03) 50%);
            position: relative;
        }
        #youth-education::before{
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 25, 47, 0.6);
        }
        #youth-education .section-title{
            color:var(--white);
        }
        #youth-education .section-desc{
            color:var(--white);
            position: relative;
        }

        #maintenance-training {
            background: white;
        }

        #maintenance-training .content-wrapper {
            order: 2;
        }

        #maintenance-training .image-wrapper {
            order: 1;
        }

        #training-incubation {
            background: rgba(26, 58, 109, 0.2);
        }

        #flyhome-app {
            background: linear-gradient(to bottom, white 50%, rgba(26, 58, 109, 0.01) 100%);
        }

        #flyhome-app .content-wrapper {
            order: 2;
        }

        #flyhome-app .image-wrapper {
            order: 1;
        }

        /* 二维码模态框样式 */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            z-index: 2000;
            justify-content: center;
            align-items: center;
            backdrop-filter: blur(5px);
        }

        .modal-content {
            background: white;
            border-radius: 20px;
            width: 90%;
            max-width: 400px;
            padding: 40px;
            text-align: center;
            position: relative;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
            animation: modalAppear 0.5s ease-out;
        }

        @keyframes modalAppear {
            0% {
                opacity: 0;
                transform: translateY(-50px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .close-btn {
            position: absolute;
            top: 15px;
            right: 20px;
            font-size: 1.8rem;
            color: var(--primary-color);
            cursor: pointer;
            transition: var(--transition);
        }

        .close-btn:hover {
            color: var(--accent-color);
            transform: rotate(90deg);
        }

        .qrcode-title {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin-bottom: 20px;
        }

        .qrcode-desc {
            color: var(--text-color);
            margin-bottom: 25px;
        }

        .qrcode-img {
            width: 200px;
            height: 200px;
            margin: 0 auto 25px;
            background: #f5f5f5;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .qrcode-img img{
            width: 100%;    
        }
        
        .qrcode-img::before {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            background: 
                linear-gradient(45deg, transparent 48%, rgba(26, 58, 109, 0.1) 50%, transparent 52%),
                linear-gradient(-45deg, transparent 48%, rgba(26, 58, 109, 0.1) 50%, transparent 52%);
            background-size: 20px 20px;
        }

        .qrcode-img .drone-icon {
            color: var(--primary-color);
            font-size: 3rem;
            opacity: 0.3;
        }

        .scan-tip {
            font-size: 0.9rem;
            color: #777;
            margin-top: 10px;
        }


        /* 响应式设计 */
        @media (max-width: 1200pxpx) {
            .service-section{
                height: 80vh;    
            }
        
        }
        @media (max-width: 992px) {
            .section-container {
                flex-direction: column;
                gap: 50px;
            }

            .content-wrapper, .image-wrapper {
                max-width: 100%;
            }

            .image-wrapper {
                max-width: 600px;
            }

            .section-title {
                font-size: 1.6rem;
            }
            .section-desc{
                font-size: 1rem;
            }
            
            #hero .section-title {
                font-size: 3rem;
            }

            #drone-services .content-wrapper,
            #maintenance-training .content-wrapper,
            #flyhome-app .content-wrapper {
                order: initial;
            }

            #drone-services .image-wrapper,
            #maintenance-training .image-wrapper,
            #flyhome-app .image-wrapper {
                order: initial;
            }

            #caac-training,
            #drone-services,
            #youth-education,
            #maintenance-training,
            #training-incubation,
            #flyhome-app {
                
            }
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 2rem;
            }

            #hero .section-title {
                font-size: 2.5rem;
            }

            .section-desc {
                font-size: 1rem;
            }

            .header-container {
                flex-direction: column;
                gap: 15px;
            }

            .nav-menu {
                flex-wrap: wrap;
                justify-content: center;
            }

            .nav-menu li {
                margin: 5px 10px;
            }

            .fixed-nav {
                display: none;
            }

            .btn {
                display: block;
                margin: 10px auto;
                text-align: center;
                max-width: 250px;
            }

            .modal-content {
                padding: 30px 20px;
            }

            .btn-outline {
                margin-left: 0;
            }
        }

        /* 动画效果 */
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
            100% { transform: translateY(0px); }
        }

        .floating {
            animation: float 6s ease-in-out infinite;
        }