想使用不同颜色对国界和省界进行描边echarts 北京配置项内容和展示

series.map中itemstyle样式不可以覆盖geo.itemstyle中的样式吗？ 在GL地图实例中看到过一个小哥哥实现了中国国界描边的效果，怎么同样的写法我这里确实这个鬼样子，geo的边框会影响map的边框 跪求大神回答，小女子感激不尽 更新时间：2018.04.17 17:45

      option = {
    title: {
        show: true,
        text: "快递乡镇覆盖率",
        subtext: "更新时间：2018.04.17 17:45",
        left: "center",
        textStyle: {
            color: "#fff",
        }
    },
    geo: {
        show: true,
        map: "china",
        itemStyle: {
            normal: {
                borderWidth: 2,
                borderColor: "#17A1E6",
                shadowColor: "rgba(0, 152, 242, 0.5)",
                shadowOffsetX: 5,
                shadowOffsetY: 5,
                shadowBlur: 20,
                areaColor: "transparent"
            },
            emphasis: {
                areaColor: "#009bf2"
            }
        },
    },
    visualMap: {
        type: "piecewise",
        left: "center",
        top: "10%",
        orient: "horizontal",
        pieces: [{
                min: 0,
                max: 299,
                label: "后5",
                color: "#F52C54"
            },
            {
                min: 300,
                max: 599,
                label: "中间",
                color: "rgba(23,161,230,0.3)"
            },
            {
                min: 600,
                max: 1000,
                label: "前5",
                color: "#17A1E6"
            },
        ],
        textStyle: {
            color: "#fff"
        }
    },
    series: {
        type: "map",
        map: "china",
        //geoIndex: 1,
        data: [{
                name: '北京',
                value: 1000
            },
            {
                name: '天津',
                value: 1000
            },
            {
                name: '上海',
                value: 400
            },
            {
                name: '重庆',
                value: 400
            },
            {
                name: '河北',
                value: 400
            },
            {
                name: '河南',
                value: 400
            },
            {
                name: '云南',
                value: 400
            },
            {
                name: '辽宁',
                value: 400
            },
            {
                name: '黑龙江',
                value: 230
            },
            {
                name: '湖南',
                value: 400
            },
            {
                name: '安徽',
                value: 400
            },
            {
                name: '山东',
                value: 400
            },
            {
                name: '新疆',
                value: 100
            },
            {
                name: '江苏',
                value: 400
            },
            {
                name: '浙江',
                value: 800
            },
            {
                name: '江西',
                value: 200
            },
            {
                name: '湖北',
                value: 400
            },
            {
                name: '广西',
                value: 400
            },
            {
                name: '甘肃',
                value: 400
            },
            {
                name: '山西',
                value: 200
            },
            {
                name: '内蒙古',
                value: 400
            },
            {
                name: '陕西',
                value: 400
            },
            {
                name: '吉林',
                value: 400
            },
            {
                name: '福建',
                value: 980
            },
            {
                name: '贵州',
                value: 400
            },
            {
                name: '广东',
                value: 900
            },
            {
                name: '青海',
                value: 400
            },
            {
                name: '西藏',
                value: 230
            },
            {
                name: '四川',
                value: 1000
            },
            {
                name: '宁夏',
                value: 400
            },
            {
                name: '海南',
                value: 400
            },
            {
                name: '台湾',
                value: 400
            },
            {
                name: '香港',
                value: 400
            },
            {
                name: '澳门',
                value: 400
            }
        ],
        itemStyle: {
            normal: {
                borderWidth: 1,
                borderColor: "#fff",
                areaColor: "transparent"
            },
        },
        label: {
            emphasis: {
                color: "#fff",
                fontSize: 16,
                fontWeight: "bold"
            }
        }
    }
};