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- $('designer-nav').hide();
 
- $(".item-down").click(function () {
 
-   $('.designer-nav').slideToggle();
 
- });
 
- // var scene = document.getElementById('scene');
 
- // var parallaxInstance = new Parallax(scene);
 
- $("*").each(function (index, element) {
 
-   // 此元素被點選後執行
 
-   $(this).click(function (e) {
 
-     // 取得被點選元素的屬性:data-gt-target
 
-     var target = $(this).attr("data-gt-target");
 
-     var duration = $(this).attr("data-gt-duration");
 
-     var offset = $(this).attr("data-gt-offset");
 
-     // JS 語法:判斷式
 
-     // if (條件) {程式區塊}
 
-     // 當條件成立,會執行程式區塊
 
-     // 如果 目標有資料 才會執行 { } 內的程式
 
-     // 避免出現 undefine (未定義 - 不存在的資料)
 
-     if (target) {
 
-       //console.log("目標:" + target);
 
-       //console.log("時間:" + duration);
 
-       //console.log("位移:" + offset);
 
-       // 上方位置 = 目標區塊.位移().上方位置
 
-       var top = $(target).offset().top;
 
-       //console.log("要前往元素的上方位置:" + top);
 
-       // 網頁元素.停止().動畫({ 上方捲動:指定元素 - 位移},持續時間)
 
-       // parseInt() 將文字轉為數字
 
-       $("html").stop().animate({
 
-         scrollTop: top - offset
 
-       }, parseInt(duration));
 
-     }
 
-   });
 
- });
 
- // 避免動畫與使用者滾輪衝突
 
- // html 在滾動滾輪時 停止 html 所有效果
 
- $("html").on("mousewheel", function () {
 
-   $("html").stop();
 
- });
 
- // 手機選單彈跳視窗
 
- $("#menu-box2").hide();
 
- $("#menu-box").hide();
 
- $("#menu-btn1").click(function () {
 
-   $("#menu-box").fadeToggle("slow");
 
-   $("#menu-box2").fadeToggle("slow");
 
- });
 
- $(".link").click(function () {
 
-   $("#menu-box").slideUp("slow", function () {
 
-     $("#menu-box2").slideUp("slow");
 
-     // Animation complete.
 
-   });
 
- });
 
- // 文字動畫
 
- const sec = document.querySelectorAll('.sec');
 
- console.log(sec.length);
 
- const title = document.querySelectorAll('.title');
 
- const cover = document.querySelectorAll('.cover');
 
- const test_content = document.querySelectorAll('.test_content');
 
- function checkSlide() {
 
-     console.log('pass');
 
-     sec.forEach((block, i) => {
 
-         // half way through the image
 
-         //const test = document.querySelector('.test');
 
-         const slideInAt = window.scrollY + window.innerHeight;
 
-         console.log(slideInAt);
 
-         //console.log(test.offsetTop);
 
-         // bottom of the image
 
-         const isHalfShown = slideInAt > block.offsetTop;
 
-         if (isHalfShown) {
 
-             console.log('active');
 
-             title[i].style.bottom = '0em';
 
-             //document.querySelector('.title').style.bottom = '0em';
 
-             test_content[i].classList.add('fadein');
 
-             cover[i].classList.add('slidein');
 
-             //test.firstElementChild.classList.add('fadein');
 
-             //test_content[i].fadeIn(1500);
 
-             // $('.test_content').fadeIn(1500);
 
-         }
 
-     })
 
- };
 
- window.addEventListener('scroll', checkSlide);
 
- window.addEventListener('scroll', sec03PlantImg);
 
- window.addEventListener('scroll', sec03BottomImg);
 
- console.log(document.querySelector('.sec03-big').offsetTop);
 
- function sec03PlantImg() {
 
-   const slideInAt = window.scrollY + window.innerHeight;
 
-   const toTop = document.querySelector('.sec03-big').offsetTop + document.querySelector('.sec03_plant').offsetTop;
 
-   const isHalfShown = slideInAt > toTop ;
 
-   console.log(toTop);
 
-   if (isHalfShown) {
 
-     document.querySelector('.sec03_plant .p_cover').classList.add('slidein');
 
-   }
 
- };
 
- function sec03BottomImg() {
 
-   const slideInAt = window.scrollY + window.innerHeight;
 
-   const toTop = document.querySelector('.sec03-big').offsetTop + document.querySelector('.sec_bottom').offsetTop + 300;
 
-   const isHalfShown = slideInAt > toTop ;
 
-   console.log(toTop);
 
-   if (isHalfShown) {
 
-     document.querySelector('.sec_bottom .b_cover').classList.add('slidein');
 
-   }
 
- };
 
 
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