// 图片视觉差
$(".runpic-pic ul li").eq(0).show();
$('.runpic-words ul a').hover(function () {
    var indexPic = $(this).index();
    $('.runpic-pic ul li').eq(indexPic).addClass('runpic-pic-true').siblings().removeClass(
        'runpic-pic-true');
    $('.runpic-pic ul li').eq(indexPic).fadeIn().siblings().fadeOut();
});
// 图片视觉差线条控制长度
runPic();

function runPic() {
    var MenuA = $('.runpic-words ul li').width();
    var FirstAL = $('.runpic-words-active').offset().left + MenuA;
    $('.runpic-line').css('width', FirstAL);

    $('.runpic-words ul a').mouseenter(function () {
        $('.runpic-words ul a li').removeClass('runpic-words-active');
        var runpicLi = $(this).children('li').addClass('runpic-words-active');
        var aNum = $(this).index();
        var FirstALH = $('.runpic-words-active').offset().left + MenuA;
        $('.runpic-line').css('width', FirstALH);
        if (aNum == 4) {
            $('.runpic-line').css('width', '100%');
        }
    });
}