256 lines
8.7 KiB
Markdown
256 lines
8.7 KiB
Markdown
## **主要步骤：**
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- 定设计稿的主要尺寸
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- 引入flexible.js文件
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- 划分大屏单位
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- 将rem与px进行单位转换
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- 特殊尺寸媒体查询
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### **定设计稿的主要尺寸**
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例如我们这边的设计稿的分辨率尺寸是1920*1080 那我们将其分成24个单元格区域，需要更细一些划分，也可以划分大一些
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具体我为了后续转换rem单位使用
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### **引入flexible.js文件**
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```js
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(function flexible(window, document) {
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var docEl = document.documentElement;
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var dpr = window.devicePixelRatio || 1;
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// adjust body font size
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function setBodyFontSize() {
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if (document.body) {
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document.body.style.fontSize = 12 * dpr + "px";
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} else {
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document.addEventListener("DOMContentLoaded", setBodyFontSize);
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}
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}
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setBodyFontSize();
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// set 1rem = viewWidth / 10
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function setRemUnit() {
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//计算px单位与rem单位转换，划分的单位
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var rem = docEl.clientWidth / 24;
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//var rem = (docEl.clientWidth / 1920) * 80; // 假设设计稿宽度为1920px
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docEl.style.fontSize = rem + "px";
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}
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setRemUnit();
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// reset rem unit on page resize
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window.addEventListener("resize", setRemUnit);
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window.addEventListener("pageshow", function(e) {
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if (e.persisted) {
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setRemUnit();
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}
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});
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// detect 0.5px supports
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if (dpr >= 2) {
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var fakeBody = document.createElement("body");
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var testElement = document.createElement("div");
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testElement.style.border = ".5px solid transparent";
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fakeBody.appendChild(testElement);
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docEl.appendChild(fakeBody);
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if (testElement.offsetHeight === 1) {
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docEl.classList.add("hairlines");
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}
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docEl.removeChild(fakeBody);
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}
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})(window, document);
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```
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### **将rem与px进行单位转换**
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这里相当于1920 / 24 =80 相当于1rem =80px ，直接将原来的css文件中px单位通过1rem=80px这个公式进行转换
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下面是参考css
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```css
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/* 在大屏幕上应用的样式 */
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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/*其中建议body中的宽和高都使用vh和vw单位 */
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body, html {
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height: 100vh;
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width: 100vw;
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overflow: hidden;
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margin: 0;
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padding: 0;
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background-size: cover;
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}
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.layui-bg-img {
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background-image: url('./image/monitorPlatform/beijing.png'); /* 更换为你的图片路径 */
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background-size: cover; /* 使用 cover 确保背景图像覆盖整个容器 */
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background-position: center;
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background-repeat: no-repeat;
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/* 背景长和宽覆盖100% */
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background-size: 100% 100%;
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}
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.right-part-bottom {
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position: relative;
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right: -22.5875rem;; /* -7px / 80 = -0.0875rem */
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top: 0.375rem; /* 30px / 80 = 0.375rem */
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color: rgba(205, 214, 227, 1);
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font-size: 0.1125rem; /* 9px / 80 = 0.1125rem */
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margin-top: -0.375rem; /* -30px / 80 = -0.375rem */
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}
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.top-left-part {
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position: absolute;
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top: 0.1625rem; /* 13px / 80 = 0.1625rem */
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left: 18.9375rem; /* 75% 转换为rem较为复杂，这里假设宽度为800px, 则75% = 600px -> 7.5rem */
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}
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.left-part-head {
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position: relative;
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right: 1.676rem;
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color: rgba(205, 214, 227, 1);
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font-size: 0.175rem; /* 14px / 80 = 0.175rem */
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}
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/*滚动大喇叭*/
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.pic_icn {
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position: absolute;
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margin-top: -2.5%; /* 百分比保持不变 */
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margin-left: -53.9%; /* 百分比保持不变 */
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width: 0.7rem; /* 56px / 80 */
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height: 0.6rem; /* 48px / 80 */
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background: #3a88d0;
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background: url(image/monitorPlatform/pic_ico.png) no-repeat;
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background-size: 54%; /* 百分比保持不变 */
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float: left;
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}
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```
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### **处理特定分辨率细节使用媒体查询**
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要是对特殊分辨率进行更为特定的细节调整可以使用媒体查询进行对特有元素使用新的样式控制
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特殊知识点：
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**区别总结**
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- **`min-width`** 是基于浏览器视口的宽度，因此适用于响应式设计，能够响应用户调整浏览器窗口大小的操作。
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- **`min-device-width`** 是基于设备屏幕的实际宽度，适用于需要针对特定设备类型优化的设计，而不考虑浏览器窗口的当前大小。
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**使用建议**
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- **优先使用 `min-width`**：对于大多数现代响应式网页设计，推荐使用 `min-width`，因为它能更好地适应各种屏幕尺寸和用户行为（如调整浏览器窗口大小）。
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- **特殊情况使用 `min-device-width`**：如果你确实需要根据设备的实际屏幕尺寸来定制样式，比如为某些平板电脑提供特别的布局，那么可以考虑使用 `min-device-width`。
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```css
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/* 添加媒体查询 */
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/* 尝试使用 max-device-width */
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/*媒体查询：1366*768分辨率下的调整*/
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@media screen and (min-device-width: 1360px) and (max-device-width: 1370px) {
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.divGroup {
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height: 3.0rem;
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}
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/* 正力重点参数图片与名称匹配样式-腰部 */
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.ssjk-center-part-title span {
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margin-top: 0.29rem;
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}
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/* 正力重点参数图片与名称匹配样式-底部 */
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.ssjk-bottom-part-title span {
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margin-top: 0.29rem;
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left: 0.39rem;
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}
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.font-title-icon {
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margin-left: 4.0rem; /* 328px / 80 */
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margin-top: 0.025rem; /* 2px / 80 */
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width: 1.25rem; /* 20px / 80 */
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height: 1.25rem; /* 20px / 80 */
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background: url(./image/monitorPlatform/Frame_11034.png) no-repeat;
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position: absolute;
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cursor: pointer;
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z-index: 1000;
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}
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.jksjbf1 {
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position: relative;
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width: 11.5125rem;
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height: 8.8rem; /* 716px / 80 */
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border-width: 0.025rem; /* 2px / 80 */
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border-style: solid;
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border-image-source: linear-gradient(180deg, rgba(162, 197, 255, 0) 0%, rgba(162, 197, 255, 0.24) 44.61%, rgba(162, 197, 255, 0.27) 100%);
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border-image-slice: 1;
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box-sizing: border-box;
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background: linear-gradient(180deg, rgba(16, 98, 222, 0.08) 0%, rgba(17, 96, 219, 0.07) 54.88%, rgba(19, 98, 215, 0.03) 75.82%, rgba(0, 95, 223, 0.02) 100%);
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}
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.jksjbf {
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top: 0.3rem; /* 24px / 80 */
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position: relative;
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width: 11.5125rem;
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height: 8.8rem; /* 716px / 80 */
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border-width: 0.025rem; /* 2px / 80 */
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border-style: solid;
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border-image-source: linear-gradient(180deg, rgba(162, 197, 255, 0) 0%, rgba(162, 197, 255, 0.24) 44.61%, rgba(162, 197, 255, 0.27) 100%);
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border-image-slice: 1;
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box-sizing: border-box;
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background: linear-gradient(180deg, rgba(16, 98, 222, 0.08) 0%, rgba(17, 96, 219, 0.07) 54.88%, rgba(19, 98, 215, 0.03) 75.82%, rgba(0, 95, 223, 0.02) 100%);
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}
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}
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/*媒体查询：2550*1440分辨率下的调整*/
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@media screen and (min-device-width: 2550px) and (max-device-width: 2570px) {
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/*图示按钮*/
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.ssjk-center-part-title span {
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margin-top: 0.1rem; /* 15px / 80 */
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width: 1.3375rem; /* 107px / 80 */
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background: linear-gradient(180deg, rgba(255, 255, 255, 1) 17.36%, rgba(172, 221, 255, 1) 83.02%), rgba(209, 214, 223, 1);
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-webkit-background-clip: text !important;
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-webkit-text-fill-color: transparent;
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font-weight: 500;
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font-size: 0.1875rem; /* 15px / 80 */
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left: 0.305rem; /* 23px / 80 */
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position: absolute;
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text-transform: uppercase;
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}
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}
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/*媒体查询：1920*1200分辨率下的调整*/
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@media screen and (min-device-width: 1910px) and (max-device-width: 1930px)
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and (min-device-height: 1190px) and (max-device-height: 1220px){
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/* 侧边菜单栏 */
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.suppplierMenu {
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position: relative;
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width: 2.6rem; /* 220px / 80 */
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height: 81.8%; /* 占满整个高度 */
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border: 0.0125rem solid rgba(83, 111, 169, 0.35);
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box-sizing: border-box;
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background: radial-gradient(235.18% 72.18% at 67.95% 7.5%, rgba(20, 106, 255, 0.24) 0%, rgba(21, 106, 255, 0.14) 22.78%, rgba(14, 113, 255, 0.07) 51.23%, rgba(20, 106, 255, 0) 100%), rgba(10, 30, 75, 0.2);
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background-size: cover;
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flex-shrink: 0;
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}
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}
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/*媒体查询：1920*1200之后放大150被之后，相当于：1920x1200 分辨率下，150% 的缩放会使视口宽度变为大约 1280px（1920 / 1.5 = 1280）*/
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@media screen and (min-device-width: 1250px) and (max-device-width: 1290px) {
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.suppplierMenu {
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position: relative;
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width: 2.6rem; /* 220px / 80 */
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height: 87.8%; /* 占满整个高度 */
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border: 0.0125rem solid rgba(83, 111, 169, 0.35);
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box-sizing: border-box;
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background: radial-gradient(235.18% 72.18% at 67.95% 7.5%, rgba(20, 106, 255, 0.24) 0%, rgba(21, 106, 255, 0.14) 22.78%, rgba(14, 113, 255, 0.07) 51.23%, rgba(20, 106, 255, 0) 100%), rgba(10, 30, 75, 0.2);
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background-size: cover;
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flex-shrink: 0;
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}
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}
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``` |