/* 全局样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft Yahei", sans-serif;
        }

        /* 基础样式 - 限定最大宽度 */
        body {
            overflow: hidden;
            color: #fff;
            margin: 0 auto; /* 居中显示 */
        }

        /* 导航栏样式重构 */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 999;
            display: flex;
            justify-content: center;
            background: transparent; /* 导航背景透明 */
            padding: 15px 0;
        }

        /* 导航容器 - 限定主体宽度1240px */
        .nav-container {
            width: 100%;
            max-width: 1440px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 20px;
        }

        /* Logo样式 */
        .nav-logo {
            width: 265px;			
            height: auto;
        }

        /* 桌面端导航列表 */
        .nav-list {
            display: flex;
            list-style: none;
            gap: 30px;
        }

        .nav-item a {
            color: #fff; /* 导航文字默认白色 */
            text-decoration: none;
            font-size: 16px;
            transition: color 0.3s ease;
        }

        .nav-item a:hover,
        .nav-item a.active {
            color: #4fc3f7;
        }

        /* 右侧电话/二维码图标容器 */
        .nav-right {
            display: flex;
            align-items: center;
            gap: 20px;
            position: relative;
        }

        /* 图标基础样式 */
        .nav-icon {
            width: 16px;
            height: 16px;
            cursor: pointer;
            transition: transform 0.2s ease;
        }

        .nav-icon:hover {
            transform: scale(1.1);
        }

        /* 电话悬浮提示 */
        .phone-tooltip {
            position: absolute;
            top: 30px; /* 调整距离，适配小图标 */
            right: 40px;
            background: rgba(0, 0, 0, 0.8);
            color: #fff;
            padding: 8px 15px;
            border-radius: 4px;
            font-size: 16px;
            display: none;
            z-index: 1000;
            white-space: nowrap;
        }

        .phone-icon:hover + .phone-tooltip,
        .phone-tooltip:hover { /* 鼠标移到提示框也保持显示 */
            display: block;
        }

        /* 二维码悬浮提示 */
        .qrcode-tooltip {
            position: absolute;
            top: 30px; /* 调整距离，适配小图标 */
            right: 0;
            background: #fff;
            padding: 10px;
            border-radius: 4px;
            display: none;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }

        .qrcode-tooltip img {
            width: 120px;
            height: 120px;
        }

        .qrcode-icon:hover + .qrcode-tooltip,
        .qrcode-tooltip:hover { /* 鼠标移到提示框也保持显示 */
            display: block;
        }

        /* 移动端汉堡菜单按钮 */
        .mobile-menu-btn {
            display: none;
            width: 20px;
            height: 20px;
            position: relative;
            cursor: pointer;
            z-index: 1001;
        }

        .mobile-menu-btn span {
            display: block;
            width: 100%;
            height: 2px;
            background: #fff;
            position: absolute;
            left: 0;
            transition: all 0.3s ease;
        }

        .mobile-menu-btn span:nth-child(1) {
            top: 0;
        }

        .mobile-menu-btn span:nth-child(2) {
            top: 50%;
            transform: translateY(-50%);
        }

        .mobile-menu-btn span:nth-child(3) {
            bottom: 0;
        }

        /* 汉堡菜单激活状态 */
        .mobile-menu-btn.active span:nth-child(1) {
            top: 50%;
            transform: translateY(-50%) rotate(45deg);
        }

        .mobile-menu-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-btn.active span:nth-child(3) {
            bottom: 50%;
            transform: translateY(50%) rotate(-45deg);
        }

        /* 移动端侧边导航 */
        .mobile-nav {
            position: fixed;
            top: 0;
            right: -100%;
            width: 80%;
            max-width: 300px;
            height: 100vh;
            background: rgba(0, 0, 0, 0.95);
            z-index: 1000;
            padding: 80px 20px 20px;
            transition: right 0.3s ease;
            overflow-y: auto;
        }

        .mobile-nav.active {
            right: 0;
        }

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

        .mobile-nav-item {
            margin-bottom: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 10px;
        }

        .mobile-nav-item a {
            color: #fff;
            text-decoration: none;
            font-size: 18px;
            display: block;
            padding: 10px 0;
            transition: color 0.3s ease;
        }

        .mobile-nav-item a:hover,
        .mobile-nav-item a.active {
            color: #4fc3f7;
        }

        /* 遮罩层 */
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            display: none;
            transition: opacity 0.3s ease;
        }

        .overlay.active {
            display: block;
        }

        /* 适配移动端导航 */
        @media (max-width: 768px) {
            /* 隐藏桌面端导航 */
            .nav-list {
                display: none;
            }

            /* 显示移动端汉堡菜单 */
            .mobile-menu-btn {
                display: block;
            }

            .nav-logo {
                width: 150px; /* 移动端缩小logo */
            }

            .nav-icon {
                width: 20px; /* 统一移动端图标尺寸 */
                height: 20px;
            }

            .phone-tooltip {
                font-size: 14px;
                padding: 6px 10px;
                top: 25px;
                right: 30px;
            }

            .qrcode-tooltip img {
                width: 100px;
                height: 100px;
            }

            /* 第一屏适配 */
            .first-screen-titles {
                flex-direction: column;
                gap: 20px;
                margin-bottom: 40px;
            }

            .first-screen-titles img {
                max-width: 80%;
            }

            .consult-btn {
                width: 155px;      /* 固定宽度155px */
                height: 40px;      /* 固定高度40px */
                background: url(../images/an.png) no-repeat center center; /* 替换为指定背景图 */
                background-size: 100% 100%; /* 背景图适配按钮尺寸 */
                color: #fff;       /* 文字白色 */
                border: none;      /* 去掉边框 */
                border-radius: 0;  /* 取消圆角（根据背景图调整） */
                font-size: 16px;   /* 字体16号 */
                cursor: pointer;
                transition: all 0.3s ease;
                margin-bottom: 40px;
                display: flex;     /* 文字居中 */
                justify-content: center; /* 水平居中 */
                align-items: center;     /* 垂直居中 */
            }

            .consult-btn:hover {
                transform: scale(1.05); /* 保留hover缩放效果 */
                opacity: 0.9;          /* 增加透明度变化提升体验 */
            }

            .down-arrow {
                width: 25px;
                height: 25px;
            }

            /* 文字适配 */
            .second-title {
                font-size: 24px;
            }

            .desc-text {
                font-size: 13px;
            }

            /* 第七屏移动端适配 */
            #section7 .section-content {
                padding-top: 0 !important;
                justify-content: center !important;
            }

            #section7 .section-title-img {
                max-width: 60% !important;
                margin-bottom: 10px !important;
            }

            .second-title {
                font-size: 18px !important;
                margin-bottom: 15px !important;
                letter-spacing: 1px !important;
            }

            #section7 .desc-text {
                font-size: 12px !important;
                margin-bottom: 20px !important;
            }

            #section7 .contact-info {
                gap: 20px !important;
                margin-bottom: 20px !important;
            }

            #section7 .contact-qrcode {
                width: 100px !important;
                height: 100px !important;
            }

            #section7 .contact-phone {
                font-size: 24px !important;
                margin-bottom: 30px !important;
                letter-spacing: 2px !important;
            }

            #section7 .footer-text {
                font-size: 10px !important;
                line-height: 1.4 !important;
            }
        }

        /* 桌面端样式覆盖 */
        @media (min-width: 769px) {
            .consult-btn {
                width: 155px;      /* 固定宽度155px */
                height: 40px;      /* 固定高度40px */
                background: url(../images/an.png) no-repeat center center; /* 替换为指定背景图 */
                background-size: 100% 100%; /* 背景图适配按钮尺寸 */
                color: #fff;       /* 文字白色 */
                border: none;      /* 去掉边框 */
                border-radius: 0;  /* 取消圆角（根据背景图调整） */
                font-size: 16px;   /* 字体16号 */
                cursor: pointer;
                transition: all 0.3s ease;
                margin-bottom: 40px;
                display: flex;     /* 文字居中 */
                justify-content: center; /* 水平居中 */
                align-items: center;     /* 垂直居中 */
            }

            .consult-btn:hover {
                transform: scale(1.05); /* 保留hover缩放效果 */
                opacity: 0.9;          /* 增加透明度变化提升体验 */
            }
        }

        /* 全屏区块容器 */
        .scroll-container {
            height: 100vh;
            overflow-y: scroll;
            scroll-snap-type: y mandatory;
            scroll-behavior: smooth;
        }

        /* 每个全屏区块样式 */
        .section {
            height: 100vh;
            width: 100%;
            scroll-snap-align: start;
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
        }

        /* 区块背景图 */
        .section-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 1;
        }

        /* 区块内容容器 - 限定主体宽度1240px */
        .section-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 0 20px;
            width: 100%;
            max-width: 1240px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            height: 100%;
        }

        /* 第一屏双标题容器 */
        .first-screen-titles {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 40px;
            margin-bottom: 60px;
        }

        .first-screen-titles img {
            max-width: 45%;
            height: auto;
        }

        /* 向下箭头图标 */
        .down-arrow {
            width: 16px;
            height: 16px;
            animation: bounce 2s infinite;
            cursor: pointer;
        }

        @keyframes bounce {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(10px);
            }
        }

        /* 标题图片样式 */
        .section-title-img {
            max-width: 80%;
            height: auto;
            margin-bottom: 30px;
        }

        /* 二级标题样式 - 微软雅黑 36号 加粗 */
        .second-title {
            font-family: "Microsoft YaHei", "微软雅黑", sans-serif;
            font-size: 36px;
            font-weight: bold;
            margin-bottom: 15px;
        }

        /* 描述文字样式 - 14号字体 */
        .desc-text {
            font-size: 14px;
            line-height: 1.6;
            max-width: 500px;
        }

        /* 联系我们区块的二维码/联系方式样式 */
        .contact-info {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 30px;
            margin-top: 20px;
        }

        .contact-qrcode {
            width: 120px;
            height: 120px;
        }

        .contact-phone {
            font-size: 20px;
            color: #fff;
        }

        /* ========== 第七屏专属优化样式 ========== */
       .section-content {
            /* 整体内容向上偏移，匹配参考图视觉 */
            justify-content: flex-start;
            padding-top: 180px;
        }

        .section-title-img {
            max-width: 40%;
            margin-bottom: 15px;
        }

       .second-title {
            font-size: 36px;
            font-weight: bold;
            letter-spacing: 2px;
            margin-bottom: 40px;
            color: #fff;
        }

        .desc-text {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 40px;
            max-width: 100%;
        }

        .contact-info {
            gap: 40px;
            margin-top: 0;
            margin-bottom: 60px;
        }

        #section7 .contact-qrcode {
            width: 120px;
            height: 120px;
        }

        #section7 .contact-phone {
            font-size: 36px;
            font-weight: bold;
            letter-spacing: 3px;
            margin-bottom: 80px;
        }

        #section7 .footer-text {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            position: absolute;
            bottom:0;
        }