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@@ -1,13 +1,28 @@
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<template>
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<div class="h5-signature">
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<div v-if="!showSignaturePanel" class="main-panel">
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<slot v-if="$slots.default"></slot>
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<template v-else>
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<van-button @click="openSignature" class="open-button" size="middle" plain native-type="button">打开签字板</van-button>
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<van-image :src="signatureContent"></van-image>
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</template>
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<slot v-if="$slots.default"></slot>
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<div v-else class="signature-entry">
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<!-- 未签名时展示统一空状态和入口，组件放入 van-field 时仍保持完整宽度。 -->
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<div v-if="!signatureContent" class="signature-entry-panel">
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<van-icon class="signature-placeholder-icon" name="edit"></van-icon>
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<div class="signature-placeholder-text">请完成本人手写签名</div>
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<van-button @click="openSignature" class="signature-open-button" block plain
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native-type="button">进入签字板</van-button>
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</div>
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<!-- 已签名时直接预览结果，并在下方提供统一的重新签名入口。 -->
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<div v-else class="signature-entry-panel signature-entry-panel--completed">
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<van-image :src="signatureContent" class="signature-preview" fit="contain"></van-image>
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<div class="signature-completed-text">
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<van-icon name="passed"></van-icon>
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<span>已完成本人手写签名</span>
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</div>
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</div>
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<button v-if="signatureContent" @click="openSignature" class="signature-reset-button"
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type="button">重新签名</button>
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</div>
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<van-popup v-model="showSignaturePanel" :style="{ height: '100vh', width: '100vw' }">
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<van-popup v-model="showSignaturePanel" :close-on-click-overlay="false"
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:style="{ height: '100vh', width: '100vw' }" @close="handleSignaturePopupClose">
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<signature @save="save"></signature>
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</van-popup>
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</div>
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@@ -36,14 +51,39 @@ module.exports = {
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data() {
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return {
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signatureContent: null,
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showSignaturePanel: false
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showSignaturePanel: false,
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historyLayerName: "",
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historyLayerUnsubscribe: null
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}
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},
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methods: {
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/**
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* 打开签字板。
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* 无请求参数；优先向全局历史栈增加当前签字弹层，返回值为空。
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*/
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openSignature() {
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const manager = window.h5HistoryLayerManager
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if (manager && manager.open(this.historyLayerName)) return
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this.showSignaturePanel = true
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},
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// 保存成功或业务主动关闭时同步回退签字弹层历史，管理器不可用时直接关闭 Popup。
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closeSignaturePanel() {
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const manager = window.h5HistoryLayerManager
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if (manager && manager.close(this.historyLayerName)) return
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this.showSignaturePanel = false
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},
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// Vant 组件自行关闭时仅处理仍位于栈顶的签字层，避免返回同步触发重复 history.back。
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handleSignaturePopupClose() {
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const manager = window.h5HistoryLayerManager
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if (!manager) return
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const stack = manager.stack
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if (stack[stack.length - 1] === this.historyLayerName) {
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manager.close(this.historyLayerName)
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}
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},
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save(signature) {
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const file = this.base64ToFile(signature, "signature.png")
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const formData = new FormData()
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@@ -59,11 +99,20 @@ module.exports = {
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})
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.then((res) => {
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if (res.code === 0) {
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alert("保存成功")
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this.showSignaturePanel = false
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// 保存成功后使用项目统一的 Vant 反馈，避免浏览器原生弹框阻塞签字流程。
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this.$toast.success({
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message: "签名保存成功",
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duration: 1500,
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forbidClick: true
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})
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this.$emit("input", res.data)
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this.closeSignaturePanel()
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} else {
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alert("保存失败")
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// 接口返回失败时保留签字板，方便用户重试。
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this.$toast.fail({
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message: res.msg || "签名保存失败，请重试",
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duration: 2000
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})
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}
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})
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},
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@@ -86,27 +135,114 @@ module.exports = {
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return new File([blob], filename, { type: contentType })
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}
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},
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created() {}
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mounted() {
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const manager = window.h5HistoryLayerManager
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if (!manager || typeof manager.ensureRegistered !== "function" || typeof manager.subscribe !== "function") return
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// 每个组件实例使用唯一弹层名称，同一页面存在多个签字组件时互不影响。
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this.historyLayerName = "h5-signature-" + this._uid
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manager.ensureRegistered("h5-signature-page-" + window.location.pathname + window.location.search)
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this.historyLayerUnsubscribe = manager.subscribe((stack) => {
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this.showSignaturePanel = stack.includes(this.historyLayerName)
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})
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},
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beforeDestroy() {
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if (typeof this.historyLayerUnsubscribe === "function") {
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this.historyLayerUnsubscribe()
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}
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}
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}
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</script>
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<style scoped>
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.h5-signature {
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width: 100%;
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min-width: 0;
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box-sizing: border-box;
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}
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.main-panel {
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position: relative;
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flex-direction: column-reverse;
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.signature-entry {
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width: 100%;
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display: flex;
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row-gap: 10px;
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flex-direction: column;
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align-items: stretch;
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box-sizing: border-box;
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}
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.main-panel .van-image {
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.signature-entry-panel {
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width: 100%;
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min-height: 150px;
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padding: 16px;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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box-sizing: border-box;
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border: 1px dashed #dfe6ef;
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border-radius: 9px;
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background: #fbfcfe;
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}
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.main-panel .open-button {
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color: var(--color-primary);
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.signature-placeholder-icon {
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margin-bottom: 6px;
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color: #c7cfda;
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font-size: 38px;
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}
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.signature-placeholder-text {
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margin-bottom: 12px;
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color: #9aa4b2;
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font-size: 13px;
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line-height: 20px;
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}
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.signature-open-button {
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width: 100%;
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height: 40px;
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color: var(--color-primary, #1989fa);
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font-size: 15px;
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font-weight: 500;
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background: linear-gradient(90deg, #f0f7ff, #f5f9ff);
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border-color: #d8e9ff;
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border-radius: 7px;
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}
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.signature-entry-panel--completed {
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min-height: 150px;
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justify-content: space-between;
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}
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.signature-preview {
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width: 100%;
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height: 96px;
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background: #fff;
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border-radius: 6px;
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overflow: hidden;
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}
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.signature-completed-text {
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margin-top: 8px;
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display: flex;
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align-items: center;
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justify-content: center;
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color: #5f6b7a;
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font-size: 13px;
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}
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.signature-completed-text .van-icon {
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margin-right: 5px;
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color: #28a745;
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font-size: 16px;
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}
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.signature-reset-button {
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align-self: center;
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margin-top: 10px;
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padding: 3px 12px;
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color: var(--color-primary, #1989fa);
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font-size: 14px;
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line-height: 22px;
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background: transparent;
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border: 0;
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}
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</style>
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