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

        body {
            font-family: 'Segoe UI', system-ui, 'Helvetica Neue', sans-serif;
            overflow: hidden;
            color: #fff;
        }

        /* Swiper 全屏容器 */
        .swiper {
            width: 100%;
            height: 100vh;
        }

        .swiper-slide {
            position: relative;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow-y: auto;
        }

        .slide-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 20, 30, 0.65);
            backdrop-filter: brightness(0.92);
            z-index: 1;
        }

        .first-slide .slide-overlay {
            background: linear-gradient(135deg, rgba(0, 35, 55, 0.75), rgba(18, 30, 40, 0.85));
        }

        .second-slide .slide-overlay {
            background: rgba(15, 25, 35, 0.7);
        }

        .slide-content {
            position: relative;
            z-index: 10;
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        /* ---------- 菜单栏样式 ---------- */
        .custom-navbar {
            padding: 20px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            background: transparent;
            transition: all 0.2s;
        }

        .logo img {
            height: 50px;
            width: auto;
            display: block;
            filter: brightness(1.05);
            transition: transform 0.2s;
        }
        .logo img:hover {
            transform: scale(1.02);
        }

        /* 桌面端菜单 */
        .menu-center {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            gap: 2rem;
        }

        .menu-center li {
            position: relative;
            list-style: none;
        }

        .menu-center li a {
            text-decoration: none;
            color: #f0f4fa;
            font-weight: 500;
            font-size: 1rem;
            padding: 8px 12px;
            display: inline-block;
            transition: all 0.25s ease;
            border-radius: 6px;
            background: transparent;
        }

        .menu-center li:hover > a {
            background-color: #ffffff;
            color: #111827 !important;
        }

        /* 子菜单 */
        .submenu {
            position: absolute;
            top: 45px;
            left: 0;
            background: rgba(30, 38, 48, 0.95);
            backdrop-filter: blur(8px);
            border-radius: 12px;
            padding: 10px 0;
            min-width: 200px;
            list-style: none;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.25s ease;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.15);
            z-index: 100;
        }

        .menu-center li:hover .submenu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .submenu li {
            width: 100%;
        }

        .submenu li a {
            display: block;
            padding: 8px 20px;
            color: #eef2ff;
            background: transparent;
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .submenu li:hover a {
            background-color: #ffffff;
            color: #111827;
        }

        /* 右侧联系方式 + 社交图标 (桌面端显示) */
        .desktop-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .contact-info {
            display: flex;
            gap: 15px;
            align-items: center;
        }
        .contact-info a {
            color: #ffffff;
            text-decoration: none;
            font-size: 0.9rem;
            transition: 0.2s;
            background: rgba(0, 0, 0, 0.3);
            padding: 6px 12px;
            border-radius: 40px;
        }
        .contact-info a i {
            margin-right: 8px;
            color: #3b82f6;
        }
        .contact-info a:hover {
            background: #ffffff;
            color: #0a1927;
        }
        .contact-info a:hover i {
            color: #0a58ca;
        }
        /* 桌面端社交图标 */
        .social-icons-desktop {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .social-icons-desktop a {
            color: #fff;
            background: rgba(0,0,0,0.3);
            width: 34px;
            height: 34px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s;
            font-size: 1rem;
            text-decoration: none;
        }
        .social-icons-desktop a:hover {
            background: #ffffff;
            color: #0a58ca;
            transform: translateY(-2px);
        }

        /* 汉堡按钮 (移动端显示，放在右侧) */
        .hamburger-btn {
            display: none;
            background: rgba(0,0,0,0.4);
            border: none;
            color: white;
            font-size: 28px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: 8px;
            backdrop-filter: blur(4px);
            transition: 0.2s;
            z-index: 200;
        }
        .hamburger-btn:hover {
            background: rgba(255,255,255,0.2);
        }

        /* 移动端侧滑菜单 */
        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 20, 30, 0.96);
            backdrop-filter: blur(12px);
            z-index: 1000;
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            overflow-y: auto;
            padding: 80px 30px 40px;
        }
        .mobile-menu-overlay.open {
            transform: translateX(0);
        }
        .close-menu {
            position: absolute;
            top: 20px;
            right: 25px;
            font-size: 32px;
            color: white;
            background: none;
            border: none;
            cursor: pointer;
        }
        .mobile-menu-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .mobile-menu-list li {
            margin-bottom: 20px;
            border-bottom: 1px solid rgba(255,255,255,0.2);
            padding-bottom: 12px;
        }
        .mobile-menu-list li a {
            color: white;
            font-size: 1.4rem;
            font-weight: 500;
            text-decoration: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .mobile-submenu {
            list-style: none;
            padding-left: 20px;
            margin-top: 12px;
            display: none;
        }
        .mobile-submenu.open {
            display: block;
        }
        .mobile-submenu li a {
            font-size: 1.1rem;
            padding: 8px 0;
            color: #bbd4ff;
        }
        .mobile-submenu li a:hover {
            color: white;
        }
        .toggle-icon {
            transition: transform 0.2s;
        }
        .rotate {
            transform: rotate(180deg);
        }

        /* 侧滑菜单底部社交媒体区域 */
        .mobile-social-bottom {
            margin-top: 50px;
            text-align: center;
            border-top: 1px solid rgba(255,255,255,0.2);
            padding-top: 25px;
        }
        .mobile-social-bottom .social-links {
            display: flex;
            justify-content: center;
            gap: 30px;
        }
        .mobile-social-bottom .social-links a {
            color: #fff;
            background: rgba(59,130,246,0.3);
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            transition: all 0.2s;
            text-decoration: none;
        }
        .mobile-social-bottom .social-links a:hover {
            background: #ffffff;
            color: #0a58ca;
            transform: translateY(-3px);
        }

        /* 第一屏主内容区 - 左右两列布局 */
        .hero-container {
            flex: 1;
            display: flex;
            align-items: center;
         flex-direction: column;
            padding: 0 8%;
        
            max-width: 1600px;
            margin: 0 auto;
            width: 100%;
        }
        .hero-left {
            flex: 1.2;
        }
        .hero-right {
            flex: 0.9;
        /*    background: rgba(15, 25, 35, 0.5);*/
            /*backdrop-filter: blur(8px);*/
            border-radius: 32px;
            padding: 30px 24px;
          /*  border: 1px solid rgba(59,130,246,0.3);
            box-shadow: 0 20px 35px -12px rgba(0,0,0,0.3);*/
        }
        .hero-title {
            font-size: 3.2rem;
            padding-top:8rem;
            box-sizing:box-sizing;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 10px rgba(0,0,0,0.3);
        }
        .hero-desc {
            font-size: 1.1rem;
            max-width: 620px;
            margin-bottom: 2rem;
            color: #ffffff;
            line-height: 1.5;
        }
        .btn-custom {
            background-color: #1e6df2;
            border: none;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 40px;
            color: white;
            transition: all 0.3s;
            box-shadow: 0 4px 12px rgba(0, 50, 100, 0.3);
            display: inline-block;
            text-decoration: none;
        }
        .btn-custom:hover {
            background-color: #0a58ca;
            transform: translateY(-3px);
            color: white;
        }
        /* 右侧板块样式 */
        .why-title {
        padding-top: 12rem;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: #fff;
            letter-spacing: 1px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 30px;
        }
        .stat-card {
            background: rgba(34,64,96,0.52)
            backdrop-filter: blur(4px);
            border-radius: 20px;
            padding: 20px 12px;
            text-align: center;
            transition: all 0.3s;
            border: 1px solid rgba(59,130,246,0.3);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            background: rgba(30, 45, 60, 0.8);
            border-color: #3b82f6;
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #5dade2;
            line-height: 1.2;
            margin-bottom: 5px;
        }
        .stat-unit {
            font-size: 0.9rem;
            font-weight: 500;
            color: #cbd5e1;
            margin-left: 4px;
        }
        .stat-desc {
            font-size: 0.85rem;
            color: #e2edff;
            margin-top: 8px;
            letter-spacing: 0.3px;
        }
        .quote-btn-wrapper {
            text-align: center;
            margin-top: 10px;
        }
        .btn-quote {
            background: linear-gradient(95deg, #1e6df2, #0a4c9e);
            border: none;
            padding: 12px 20px;
            width: 100%;
            font-weight: 600;
            border-radius: 40px;
            transition: all 0.3s;
        }
        .btn-quote a:hover {
            transform: scale(1.02);
            background: #0a58ca;
        }

        /* 第二屏保持不变 */
        .advantage-wrapper {
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 60px 5%;
        }
        .section-title {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 2rem;
            text-align: center;
            letter-spacing: 2px;
            color: #ffffff !important;
            text-shadow: 0 2px 5px rgba(0,0,0,0.4);
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .swiper-slide-active .section-title {
            opacity: 1;
            transform: translateY(0);
            transition-delay: 0.1s;
        }
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 2rem;
            width: 100%;
            max-width: 1300px;
            margin: 0 auto;
        }
        .advantage-card {
            background: rgba(25, 35, 45, 0.75);
            backdrop-filter: blur(8px);
            border-radius: 24px;
            padding: 2rem 1.5rem;
            text-align: center;
            transition: all 0.3s ease;
            border: 1px solid rgba(59,130,246,0.4);
            box-shadow: 0 15px 30px -12px rgba(0,0,0,0.3);
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .swiper-slide-active .advantage-card {
            opacity: 1;
            transform: translateY(0);
        }
        .second-slide .advantage-card:nth-child(1) { transition-delay: 0.15s; }
        .second-slide .advantage-card:nth-child(2) { transition-delay: 0.25s; }
        .second-slide .advantage-card:nth-child(3) { transition-delay: 0.35s; }
        .second-slide .advantage-card:nth-child(4) { transition-delay: 0.45s; }
        .second-slide .advantage-card:nth-child(5) { transition-delay: 0.55s; }

        .advantage-card:hover {
            transform: translateY(-8px);
            background: rgba(30, 45, 60, 0.85);
            border-color: #3b82f6;
        }
        .card-icon {
            font-size: 2.8rem;
            color: #3b82f6;
            margin-bottom: 1rem;
        }
        .advantage-card h4 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #ffffff !important;
        }
        .advantage-card p {
            color: #ffffff !important;
            font-size: 0.95rem;
            line-height: 1.5;
            font-weight: 400;
        }

        /* 第三屏 footer */
        .footer-slide {
            background: #0f1a24;
        }
        .footer-content {
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 2rem;
        }
        .footer-logo {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            color: #5dade2;
        }
        .copyright {
            font-size: 0.9rem;
            color: #e0edf9;
            border-top: 1px solid rgba(90, 150, 210, 0.3);
            padding-top: 2rem;
        
        }
        .footer-social a {
            color: #9bb8da;
            margin: 0 12px;
            font-size: 1.4rem;
            transition: 0.2s;
            display: inline-block;
        }
        .footer-social a:hover {
            color: #3b82f6;
            transform: translateY(-3px);
        }


        /* 右侧圆点分页器 */
        .swiper-pagination {
            position: fixed;
            right: 25px;
            top: 50%;
            transform: translateY(-50%);
            width: auto !important;
            left: auto !important;
            display: flex;
            flex-direction: column;
            gap: 14px;
            z-index: 20;
        }
        .swiper-pagination-bullet {
            width: 12px;
            height: 12px;
            background: rgba(255, 255, 255, 0.55);
            opacity: 1;
            border-radius: 50%;
            transition: all 0.2s ease;
            box-shadow: 0 0 4px rgba(0,0,0,0.3);
            cursor: pointer;
        }
        .swiper-pagination-bullet-active {
            background: #3b82f6;
            width: 16px;
            height: 16px;
            box-shadow: 0 0 12px #3b82f6;
            transform: scale(1.1);
        }

        /* 响应式 */
        @media (max-width: 1100px) {
            .hero-container {
                flex-direction: column;
                justify-content: center;
                gap: 30px;
                padding: 20px 6%;
            }
            .hero-left {
                width: 100%;
                text-align: center;
                display: flex;
                flex-direction: column;
                align-items: center;
            }
            .hero-title {
                font-size: 2.5rem;
                text-align: center;
            }
            .hero-desc {
                text-align: center;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-right {
                width: 100%;
                max-width: 550px;
                margin: 0 auto;
            }
        }

        @media (max-width: 992px) {
            .custom-navbar {
                padding: 15px 20px;
                justify-content: space-between;
            }
            /* 隐藏桌面端菜单和联系方式社交 */
            .menu-center, .desktop-right {
                display: none;
            }
            /* 显示汉堡按钮，放在右侧 */
            .hamburger-btn {
                display: block;
                order: 2;
            }
            .logo {
                order: 1;
                margin: 0 auto;
            }
            /* 左侧占位隐藏 */
            .custom-navbar > div:first-child {
                display: none;
            }
            .hero-title {
                font-size: 2rem;
            }
            .section-title {
                font-size: 2rem;
            }
            .stats-grid {
                gap: 15px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .why-title {
                font-size: 1.5rem;
            }
            .stat-card {
                padding: 15px 8px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
        }

        /* 背景图片 */
        .first-slide {
            background-image: url('../images/jmbg.jpg');
            background-size: cover;
            background-position: center;
        }
        .second-slide {
            background-image: url('https://images.pexels.com/photos/669996/pexels-photo-669996.jpeg?auto=compress&cs=tinysrgb&w=1600');
            background-size: cover;
            background-position: center;
        }
        .swiper-slide::-webkit-scrollbar {
            width: 5px;
        }
        .swiper-slide::-webkit-scrollbar-track {
            background: #1e2a36;
        }
        .swiper-slide::-webkit-scrollbar-thumb {
            background: #3b82f6;
            border-radius: 5px;
        }