最新版本医废小程序代码，包含医废收集、一键入库/出库、周转箱入库/出库
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<template>
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<view class="page">
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<cu-custom bgColor="bg-blue" :isBack="true"><block slot="backText">返回</block><block slot="content">签名确认</block></cu-custom>
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<view class="sign-container">
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<view class="sign-info">
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<text class="info-label">交接人：</text>
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<text class="info-value">{{handName}}</text>
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</view>
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<!-- 签名区域 -->
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<view class="signature-section" @touchstart="preventScroll" @touchmove="preventScroll">
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<view class="signature-header">
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<text class="signature-title">请签名</text>
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<text class="signature-clear" v-if="hasSigned" @click="clearCanvas">点击重签</text>
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</view>
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<view class="canvas-wrapper">
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<canvas canvas-id="signCanvas" id="signCanvas" class="canvas-area"
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@touchstart="touchStart"
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@touchmove="touchMove"
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@touchend="touchEnd"></canvas>
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</view>
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</view>
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<view class="btn-container">
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<button class="clear-btn" @click="clearCanvas">清除</button>
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<button class="confirm-btn" @click="confirmSign">确认</button>
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</view>
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</view>
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</view>
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</template>
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<script>
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export default {
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data() {
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return {
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id: '',
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handName: '',
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canvasCtx: null,
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canvasWidth: 0,
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canvasHeight: 0,
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canvasLeft: 0,
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canvasTop: 0,
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isDrawing: false,
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points: []
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}
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},
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computed: {
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hasSigned() {
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return this.points.length > 5
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}
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},
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onLoad(options) {
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console.log('接收到的参数：', options);
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this.id = decodeURIComponent(options.id || '');
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this.handName = decodeURIComponent(options.handName || '');
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console.log('id:', this.id, 'handName:', this.handName);
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},
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onReady() {
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this.initCanvas();
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},
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methods: {
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initCanvas() {
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const ctx = uni.createCanvasContext('signCanvas', this);
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this.canvasCtx = ctx;
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// 获取canvas尺寸和位置
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const query = uni.createSelectorQuery().in(this);
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query.select('#signCanvas').boundingClientRect((res) => {
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if (res) {
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this.canvasWidth = res.width;
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this.canvasHeight = res.height;
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this.canvasLeft = res.left;
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this.canvasTop = res.top;
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}
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}).exec();
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},
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// 阻止页面滚动
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preventScroll(e) {
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// 空函数即可阻止
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},
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// 获取触摸位置（相对canvas的坐标）
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getTouchPos(e) {
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const touch = e.touches[0];
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// 转换为canvas相对坐标
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return {
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x: touch.clientX - this.canvasLeft,
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y: touch.clientY - this.canvasTop
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};
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},
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// 触摸开始
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touchStart(e) {
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e.preventDefault();
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// 先更新canvas位置
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const query = uni.createSelectorQuery().in(this);
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query.select('#signCanvas').boundingClientRect((res) => {
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if (res) {
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this.canvasLeft = res.left;
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this.canvasTop = res.top;
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}
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}).exec();
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const pos = this.getTouchPos(e);
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this.points = [pos];
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this.isDrawing = true;
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},
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// 触摸移动
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touchMove(e) {
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e.preventDefault();
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if (!this.isDrawing) return;
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const pos = this.getTouchPos(e);
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this.points.push(pos);
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// 绘制
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if (this.points.length >= 2 && this.canvasCtx) {
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this.canvasCtx.beginPath();
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this.canvasCtx.setStrokeStyle('#333');
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this.canvasCtx.setLineWidth(3);
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this.canvasCtx.setLineCap('round');
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this.canvasCtx.setLineJoin('round');
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this.canvasCtx.moveTo(this.points[this.points.length - 2].x, this.points[this.points.length - 2].y);
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this.canvasCtx.lineTo(pos.x, pos.y);
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this.canvasCtx.stroke();
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this.canvasCtx.draw(true);
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}
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},
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// 触摸结束
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touchEnd() {
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this.isDrawing = false;
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},
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// 清空签字
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clearCanvas() {
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this.points = [];
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const ctx = uni.createCanvasContext('signCanvas', this);
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ctx.clearRect(0, 0, this.canvasWidth, this.canvasHeight);
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ctx.draw();
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},
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confirmSign() {
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if (!this.hasSigned) {
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uni.showToast({
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title: '请先签名',
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icon: 'none',
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duration: 2000
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});
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return;
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}
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uni.canvasToTempFilePath({
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canvasId: 'signCanvas',
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fileType: 'png',
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quality: 1,
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success: (res) => {
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console.log('签名图片路径：', res.tempFilePath);
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uni.showToast({
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title: '签名已确认',
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icon: 'success',
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duration: 2000
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});
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setTimeout(() => {
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uni.navigateBack();
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}, 500);
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},
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fail: (err) => {
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console.error('保存签名失败', err);
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uni.showToast({
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title: '签名保存失败',
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icon: 'none',
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duration: 2000
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});
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}
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}, this);
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}
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}
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}
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</script>
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<style>
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.page {
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width: 100vw;
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height: 100vh;
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background: #f5f5f5;
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}
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/* 签名容器 */
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.sign-container {
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display: flex;
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flex-direction: column;
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height: calc(100vh - 100rpx);
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padding: 30rpx;
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}
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/* 签名信息 */
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.sign-info {
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display: flex;
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align-items: center;
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padding: 30rpx;
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background: #fff;
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border-radius: 20rpx;
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margin-bottom: 30rpx;
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box-shadow: 0 4rpx 16rpx rgba(0, 0, 0, 0.08);
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flex-shrink: 0;
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}
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.info-label {
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font-size: 32rpx;
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color: #666;
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font-weight: 500;
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margin-right: 20rpx;
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}
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.info-value {
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font-size: 32rpx;
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color: #4a90e2;
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font-weight: 600;
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}
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/* 签名区域样式 */
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.signature-section {
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background: #fff;
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border-radius: 16rpx;
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margin-bottom: 30rpx;
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padding: 20rpx;
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box-shadow: 0 4rpx 16rpx rgba(0, 0, 0, 0.08);
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flex: 1;
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display: flex;
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flex-direction: column;
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}
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.signature-header {
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display: flex;
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align-items: center;
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justify-content: space-between;
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margin-bottom: 20rpx;
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flex-shrink: 0;
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}
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.signature-title {
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font-size: 32rpx;
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color: #333;
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font-weight: 600;
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}
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.signature-clear {
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font-size: 24rpx;
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color: #4a90e2;
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}
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/* 画布包裹层 */
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.canvas-wrapper {
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flex: 1;
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background: #fff;
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border: 2rpx dashed #ccc;
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border-radius: 12rpx;
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overflow: hidden;
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position: relative;
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}
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/* 签名画布 */
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.canvas-area {
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position: absolute;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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background: #fafafa;
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}
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/* 按钮容器 */
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.btn-container {
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display: flex;
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justify-content: space-around;
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padding: 30rpx;
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flex-shrink: 0;
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}
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/* 清除按钮 */
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.clear-btn {
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flex: 1;
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margin-right: 20rpx;
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background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
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color: #666;
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border: none;
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border-radius: 24rpx;
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padding: 28rpx 0;
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font-size: 32rpx;
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font-weight: 600;
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box-shadow: 0 4rpx 16rpx rgba(0, 0, 0, 0.1);
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}
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.clear-btn::after {
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border: none;
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}
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/* 确认按钮 */
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.confirm-btn {
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flex: 1;
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margin-left: 20rpx;
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background: linear-gradient(135deg, #4a90e2 0%, #357abd 100%);
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color: #fff;
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border: none;
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border-radius: 24rpx;
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padding: 28rpx 0;
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font-size: 32rpx;
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font-weight: 600;
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box-shadow: 0 6rpx 24rpx rgba(74, 144, 226, 0.35);
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}
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.confirm-btn::after {
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border: none;
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}
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</style>
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